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Journal articles on the topic 'Adhesive performance'

Author: Grafiati

Published: 15 February 2024

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1

Ruffatto, Donald, Aaron Parness, and Matthew Spenko. "Improving controllable adhesion on both rough and smooth surfaces with a hybrid electrostatic/gecko-like adhesive." Journal of The Royal Society Interface 11, no. 93 (2014): 20131089. http://dx.doi.org/10.1098/rsif.2013.1089.

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This paper describes a novel, controllable adhesive that combines the benefits of electrostatic adhesives with gecko-like directional dry adhesives. When working in combination, the two technologies create a positive feedback cycle whose adhesion, depending on the surface type, is often greater than the sum of its parts. The directional dry adhesive brings the electrostatic adhesive closer to the surface, increasing its effect. Similarly, the electrostatic adhesion helps engage more of the directional dry adhesive fibrillar structures, particularly on rough surfaces. This paper presents the ne

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Petković, Gorana, Marina Vukoje, Josip Bota, and Suzana Pasanec Preprotić. "Enhancement of Polyvinyl Acetate (PVAc) Adhesion Performance by SiO2 and TiO2 Nanoparticles." Coatings 9, no. 11 (2019): 707. http://dx.doi.org/10.3390/coatings9110707.

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Post press processes include various types of bonding and adhesives, depending upon the nature of adherends, the end use performance requirements and the adhesive bonding processes. Polyvinyl acetate (PVAc) adhesive is a widely used adhesive in the graphic industry for paper, board, leather and cloth. In this study, the enhancement of PVAc adhesion performance by adding different concentrations (1%, 2% and 3%) of silica (SiO2) and titanium dioxide (TiO2) nanoparticles was investigated. The morphology of investigated paper-adhesive samples was analyzed by SEM microscopy and FTIR spectroscopy. I

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3

Zhang, Jun, and Hong Jia. "Performance of Cohesive Zone Models for Brittle and Ductile Adhesives." Advanced Materials Research 941-944 (June 2014): 2089–92. http://dx.doi.org/10.4028/www.scientific.net/amr.941-944.2089.

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Damage modeling approach is increasingly used to simulate fracture and debonding processes in adhesively bonded joint. In order to understand the relation between the delamination behavior of different types of adhesives and the type of cohesive zone models (CZMs), the pure tension and pure shear experiments were conducted used two distinct adhesives, an epoxy-based adhesive in a brittle manner and VHBTM tape adhesive in a ductile manner. The traction-separation relations of the two adhesives were extracted from the tension and shear experimental results. Three types of cohesive zone models (C

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Bogue, Robert. "Recent innovations in adhesive technology." Assembly Automation 35, no. 3 (2015): 201–5. http://dx.doi.org/10.1108/aa-10-2014-081.

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Purpose – This paper aims to provide an insight into recent innovations in adhesive technology by considering a selection of commercial developments and academic research activities. Design/methodology/approach – Following an introduction, this paper first discusses a selection of commercially developed adhesives used in the healthcare, photovoltaics and aerospace industries. It then considers biomimetic adhesive research, specifically dry adhesives which mimic the principles of gecko adhesion and wet adhesives based on the chemistry which underpins mussel adhesion. Finally, brief concluding c

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Anggini, Awanda, Muhammad Lubis, Rita Sari, et al. "Cohesion and Adhesion Performance of Tannin-Glyoxal Adhesives at Different Formulations and Hardener Types for Bonding Particleboard Made of Areca (Areca catechu) Leaf Sheath." Polymers 15, no. 16 (2023): 3425. http://dx.doi.org/10.3390/polym15163425.

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The use of alternative raw materials, such as agricultural biomass and by-products, in particleboard (PB) production is a viable approach to address the growing global demand for sustainable wood-based materials. The purpose of this study was to investigate the effect of the type of hardener and tannin-glyoxal (TG) adhesive formulation on the cohesion and adhesion performance of TG adhesives for areca-based PB. Two types of hardeners were used, NH4Cl and NaOH, and three adhesive formulations with tannin:glyoxal ratios (i.e., F1 (1:2), F2 (1:1), and F3 (2:1)) were applied to improve the cohesio

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Al-Kaabi, Arshad F. Jassem. "Evaluating The Effect of Humidity on Adhesion Strength of Skin Adhesive." Molecular and Cellular Biomedical Sciences 4, no. 3 (2020): 135. http://dx.doi.org/10.21705/mcbs.v4i3.148.

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Background: Skin adhesive has been used for attaching certain medical application to the human skin for functional and/or esthetic purposes. Silicone adhesive is the most common type of skin adhesives that are recently used. This study aims to evaluate the possible effect of humidity on the performance of silicone skin adhesive.Materials and Methods: Twenty-four silicone samples were divided into 2 main groups based on relative humidity (RH) exposure, namely 43% RH and 98% RH. Six samples from each group were tested for adhesion strength after 1 hour of adhesion, and the other 6 samples were t

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Bashir, Zoobia, Wenting Yu, Zhengyu Xu, et al. "Engineering Bio-Adhesives Based on Protein–Polysaccharide Phase Separation." International Journal of Molecular Sciences 23, no. 17 (2022): 9987. http://dx.doi.org/10.3390/ijms23179987.

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Glue-type bio-adhesives are in high demand for many applications, including hemostasis, wound closure, and integration of bioelectronic devices, due to their injectable ability and in situ adhesion. However, most glue-type bio-adhesives cannot be used for short-term tissue adhesion due to their weak instant cohesion. Here, we show a novel glue-type bio-adhesive based on the phase separation of proteins and polysaccharides by functionalizing polysaccharides with dopa. The bio-adhesive exhibits increased adhesion performance and enhanced phase separation behaviors. Because of the cohesion from p

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Czech, Zbigniew, Robert Pełech, Agnieszka Kowalczyk, Arkadiusz Kowalski, and Rafał Wróbel. "Electrically conductive acrylic pressure-sensitive adhesives containing carbon black." Polish Journal of Chemical Technology 13, no. 4 (2011): 77–81. http://dx.doi.org/10.2478/v10026-011-0053-2.

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Electrically conductive acrylic pressure-sensitive adhesives containing carbon black Acrylic pressure-sensitive adhesives (PSA) are non electrical conductive materials. The electrical conductivity is incorporated into acrylic self-adhesive polymer after adding electrically conductive additives like carbon black, especially nano carbon black. After an addition of electrical conductive carbon black, the main and typical properties of pressure-sensitive adhesives such as tack, peel adhesion and shear strength, are deteriorated. The investigations reveals that the acrylic pressure-sensitive adhesi

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Ren, Xiue, Chenyang Fan, Jiayi Tu, et al. "Study on Preparation and Performance of Polyurethane Hot Melt Adhesive Films." Advances in Engineering Technology Research 5, no. 1 (2023): 407. http://dx.doi.org/10.56028/aetr.5.1.407.2023.

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Polyurethane hot melt adhesive films (PHMAFs) are green adhesives without any solvent. In this study, a series of polyurethane hot melt adhesive films with different crosslinking agent content were successfully synthesized. The melting temperature, water absorption, mechanical properties, and adhesion properties were studied. The results illustrate that the introduction of crosslinking agent could endow PHMAFs with better final adhesion strengths and water resistance ability, but also lead to decrease of tensile stress at break and elongation at break. The final T-peel strength of the films wa

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Garner, Austin M., Michael C. Wilson, Anthony P. Russell, Ali Dhinojwala, and Peter H. Niewiarowski. "Going Out on a Limb: How Investigation of the Anoline Adhesive System Can Enhance Our Understanding of Fibrillar Adhesion." Integrative and Comparative Biology 59, no. 1 (2019): 61–69. http://dx.doi.org/10.1093/icb/icz012.

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Abstract The remarkable ability of geckos to adhere to a wide-variety of surfaces has served as an inspiration for hundreds of studies spanning the disciplines of biomechanics, functional morphology, ecology, evolution, materials science, chemistry, and physics. The multifunctional properties (e.g., self-cleaning, controlled releasability, reversibility) and adhesive performance of the gekkotan adhesive system have motivated researchers to design and fabricate gecko-inspired synthetic adhesives of various materials and properties. However, many challenges remain in our attempts to replicate th

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Matchawet, Suradet, Jobish Johns, Jutatip Artchomphoo, Kwanruethai Boonsong, and Uraiwan Sookyung. "Improving the Performance of Wood Adhesive with Waste Rubber Tire." Trends in Sciences 20, no. 9 (2023): 6826. http://dx.doi.org/10.48048/tis.2023.6826.

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Reclaimed rubber (RR) from waste tires was introduced as a wood adhesive by blending with epoxidized natural rubber (ENR). To improve the polarity of RR and compatibility with ENR, maleic anhydride (MA) was grafted onto RR chains. Influences of RR and RR-g-MA (maleic anhydride grafted reclaimed rubber) on the adhesion of wood adhesive along with their properties such as crosslinking, mechanical properties, thermal stability, and wettability were studied. It was found that RR and RR-g-MA affect the vulcanization of ENR by increasing crosslink density. Especially, in the case of using RR-g-MA ge

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Ferreira, Joao Cardoso, Patricia Teixeira Pires, Alvaro Ferreira Azevedo, Sofia Arantes Oliveira, Paulo Ribeiro Melo, and Mario Jorge Silva. "Influence of Solvents and Composition of Etch-and-Rinse and Self-Etch Adhesive Systems on the Nanoleakage within the Hybrid Layer." Journal of Contemporary Dental Practice 14, no. 4 (2013): 691–99. http://dx.doi.org/10.5005/jp-journals-10024-1386.

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ABSTRACT Aim The goal of this study was to evaluate nanoleakage within the hybrid layer yielded by etch-and-rinse and self-etch adhesive systems, with different solvents and compositions. Materials and methods Four adhesives were applied onto 20 human dentin disks: group A: Adper Scotchbond 1XT™ (3M ESPE), group B: One Coat Bond® (Coltène Whaledent), group C: AdheSE® (Ivoclar Vivadent) and group D: Xeno-V® (Dentsply). The samples were immersed in aqueous ammoniacal silver nitrate for 24 hour, prepared and observed under field-emission scanning electron microscopy with backscattered electrons.

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Liu, Zhaohui, Xiangming Deng, Hao Guo, Yingchun Zhang, Di Wei, and Dongmei Zhang. "Development and Performance Evaluation of Thin-Layer Color Antiwearing Paving Materials." Advances in Civil Engineering 2021 (June 10, 2021): 1–12. http://dx.doi.org/10.1155/2021/5584325.

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To develop a color antiwearing wear layer based on epoxy resin adhesives, the effect of single formula composition on the properties of adhesives was analyzed through drawing strength tests, shear strength tests, and bending strength tests. It was found that when the mass ratio of the epoxy resin curing agent and the dosage of the toughening agent increased, the bonding performance and toughness of the adhesive firstly increased and then decreased. With the increase of the mass ratio of phenolic aldehyde amine to polyamide, the bonding performance and toughness of the adhesive were improved, b

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Yoon, S. H., B. J. Kim, K. H. Lee, and D. G. Lee. "The Effect of Quartz Nano-Particles on the Damage Monitoring of Adhesive Joint at Cryogenic Temperature." Advanced Materials Research 93-94 (January 2010): 562–65. http://dx.doi.org/10.4028/www.scientific.net/amr.93-94.562.

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Recently, a piezoelectric method using piezoelectric characteristics of epoxy adhesives has been successfully developed for the adhesive joints, which can monitor continuously the damage of adhesively bonded structures without producing any defect induced by inserting a sensor. However, due to low piezoelectric properties of epoxy adhesives, the detection of micro crack was impossible. At the cryogenic temperature, the detection of micro crack is important to estimate the fatigue life because the polymeric adhesives become very brittle. Therefore, in this work, the epoxy adhesive was modified

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Gorumlu, Serdar, and Burak Aksak. "Sticking to rough surfaces using functionally graded bio-inspired microfibres." Royal Society Open Science 4, no. 6 (2017): 161105. http://dx.doi.org/10.1098/rsos.161105.

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Synthetic fibrillar adhesives inspired by nature, most commonly by the gecko lizard, have been shown to strongly and repeatedly attach to smooth surfaces. These adhesives, mostly of monolithic construction, perform on par with their natural analogues on smooth surfaces but exhibit far inferior adhesive performance on rough surfaces. In this paper, we report on the adhesive performance of functionally graded microfibrillar adhesives based on a microfibre with a divergent end and a thin soft distal layer on rough surfaces. Monolithic and functionally graded fibre arrays were fabricated from poly

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Clerc, Gaspard, Thomas Lüthi, Peter Niemz, and Jan Willem G. Van de Kuilen. "Reaction kinetics investigation in relation to the influence of humidity on fatigue behavior of wood lap joints." Holzforschung 74, no. 9 (2020): 865–80. http://dx.doi.org/10.1515/hf-2019-0136.

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AbstractIt is generally assumed that the properties of wood against fatigue are good, but little is known about the properties of adhesively bonded wood, which represents today most of the wood-based products. Lap-shear samples glued with three common wood adhesives [two ductile one-component polyurethane (1C-PUR) systems and one brittle phenol resorcinol formaldehyde (PRF) adhesive] were tested under cyclical loads at three different climates [20°C, 35% − 50% − 85% relative humidity (RH)]. For the analysis of data, an empirical model based on reaction kinetics was developed. In addition, a pr

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Eagland, D. "Adhesion and adhesive performance: the scientific background." Endeavour 12, no. 4 (1988): 179–84. http://dx.doi.org/10.1016/0160-9327(88)90164-0.

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Saito, T., T. Takamizawa, R. Ishii, et al. "Influence of Application Time on Dentin Bond Performance in Different Etching Modes of Universal Adhesives." Operative Dentistry 45, no. 2 (2020): 183–95. http://dx.doi.org/10.2341/19-028-l.

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SUMMARY We attempted to determine the effect of universal adhesive application time on dentin bond performance in different etching modes based on shear bond strength (SBS) tests and surface free energy (SFE) measurements. The five universal adhesives used were Adhese Universal (AU), Clearfil Universal Bond Quick (CQ), G-Premio Bond (GP), Scotchbond Universal (SU), and Tokuyama Universal Bond (TU). Bovine dentin specimens were divided into four groups of 10 for each adhesive. SBS and SFE were determined after applying the following surface treatments: 1) self-etch (SE) mode with immediate air

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Faatz, Michael, and Agnes Ehmann. "Influence of the Concrete Block on the Tile Adhesive Strength Measured According to EN 12004." Standards 3, no. 2 (2023): 169–76. http://dx.doi.org/10.3390/standards3020013.

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Ceramic tile adhesives (CTA) are playing a dominant role for the business of dry-mix producers. Their quality is classified according to EN 12004. In addition, this standard describes the procedure of a CTA’s performance evaluation. Therefore, a defined ceramic tile, a concrete substrate, and the actual tile adhesive is required. In our study, we investigated the influence of different concrete slabs on the results of two tile adhesives. In two cases, the influence of an additional thermal storage of the concrete slabs was evaluated. The tests were strictly performed according to EN 12004-2:20

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Wang, Qing, Guang Xue Chen, Shuang Lian Chen, Jing Lei Tai, and Qi Feng Chen. "Research on Synthesis and Performance of Solvent-Free Aluminum-Plastic Composite Polyurethane Adhesive." Advanced Materials Research 583 (October 2012): 9–13. http://dx.doi.org/10.4028/www.scientific.net/amr.583.9.

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A low-viscosity and solvent-free polyurethane adhesive was prepared with mixed polyester, polyether and IPDI as main raw materials. The influences of different moral ratios of polyester and polyether on reaction time, viscosity and water resistance, adhesive strength were researched. The effects of catalysts to adhesive were well discussed. The experimental results showed that polyurethane adhesives composed by mixed polyester and polyether had low viscosity and had better waterproof quality. The adhesives showed the best comprehensive properties when the mole ratio of OHs of polyether to OHs

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Wang, Jun Ru. "Photocontrolled Azo-Containing Adhesives." Key Engineering Materials 896 (August 10, 2021): 87–97. http://dx.doi.org/10.4028/www.scientific.net/kem.896.87.

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The photoisomerization of azobenzene (Azo) in system can induce changes of adhesion. Using this feature, some significant breakthroughs have been achieved in distinct adhesive systems from small molecular to polymer to supramolecular. Although the mechanisms vary from different situations, photoisomerization and photothermal effect of azobenzene under different irradiation always play significant role in the switch of the adhesion strength. By utilizing these features, some adhesive systems have illustrated promising and competitive performance. This review will concentrate on these achievemen

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Xu, Yecheng, Yantao Xu, Wenjie Zhu, Wei Zhang, Qiang Gao, and Jianzhang Li. "Improve the Performance of Soy Protein-Based Adhesives by a Polyurethane Elastomer." Polymers 10, no. 9 (2018): 1016. http://dx.doi.org/10.3390/polym10091016.

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The purpose of this study was to improve the performance of soy protein isolate (SPI) adhesives using a polyurethane elastomer. Triglycidylamine (TGA), SPI, thermoplastic polyurethane elastomer (TPU), and γ-(2,3-epoxypropoxy) propyltrimethoxysilane (KH-560) were used to develop a novel SPI-based adhesive. The residual rate, functional groups, thermal stability, and fracture surface micrographs of the cured adhesives were characterized. Three-ply plywood was fabricated, and the dry/wet shear strength was determined. The experimental results suggested that introducing 2% TGA improved the residua

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Xiao, Guoming, Jiankun Liang, Zhigang Wu, et al. "A Composite Whole-Biomass Tannin–Sucrose–Soy Protein Wood Adhesive with High Performance." Forests 14, no. 6 (2023): 1250. http://dx.doi.org/10.3390/f14061250.

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Whole-biomass adhesives are the research hotspot of wood adhesives andcan improve the competitiveness of adhesives. The tannin–sucrose adhesive studied by our research group shows good bonding performance, but poor bonding stability induced by low viscosity. In this study, the tannin–sucrose adhesive was modified by isolated soybean protein (SPI), the effect of the SPI substitution ratio for tannin on the properties of the tannin–sucrose–SPI composite adhesive was investigated, and the bonding mechanism was explored using Fourier-transform infrared spectroscopy (FT-IR), thermogravimetry (TG),

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Hurtado, Ana, Victoria Fuentes, María Cura, Aitana Tamayo, and Laura Ceballos. "Long-Term In Vitro Adhesive Properties of Two Universal Adhesives to Dentin." Materials 16, no. 9 (2023): 3458. http://dx.doi.org/10.3390/ma16093458.

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The composition of universal adhesives, as well as the adhesive strategy, may influence bonding effectiveness and durability. This study aimed to evaluate the microtensile bond strength (µTBS) and nanoleakage (NL), immediately and after 6-month aging, and in situ degree of conversion (DC), of two universal adhesives (Scotchbond Universal Adhesive, SBU; Xeno Select, XEN) applied with etch-and-rinse (ER) and self-etch (SE) strategies, in comparison with a two-step SE adhesive (Clearfil SE Bond, CSE). Dentin surfaces of fifty human third molars were randomly assigned to the following adhesives: t

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Masoumi, Abasali, Francisco Xavier Zambrano Balma, and Brian H. Bond. "Adhesive bonding performance of thermally modified yellow poplar." BioResources 18, no. 4 (2023): 8151–62. http://dx.doi.org/10.15376/biores.18.4.8151-8162.

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Thermal modification of wood changes its chemical, physical, and structural properties, which may affect adhesive bondline quality and bonding performance. This research compared the effect of thermal modification on the adhesive bonding performance of poplar (Liriodendron tulipifera) wood. Samples were prepared from thermally modified and unmodified yellow poplar using one-component polyurethane (PUR) and polyvinyl acetate (PVA), as they are adhesives used in wood products. Microscopic properties of the bondlines were investigated to understand shear performance and durability. Adhesive line

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Ahmed, Sheikh Ali, Reza Hosseinpourpia, and Stergios Adamopoulos. "Micro-Fibrillated Cellulose in Lignin–Phenol–Formaldehyde Adhesives for Plywood Production." Forests 14, no. 11 (2023): 2249. http://dx.doi.org/10.3390/f14112249.

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Petrochemical-based phenol–formaldehyde (PF) adhesives are widely used in plywood production. To substitute phenol in the synthesis of PF adhesives, lignin can be added due to its structural similarity to phenol. Moreover, micro-fibrillated cellulose (MFC) can further enhance the bond performance, mechanical properties, and toughness of adhesive systems. Thus, the aim of this study was to evaluate the adhesion performance of lignin–PF (LPF) adhesives reinforced with MFC. In LPF formulations, three levels of MFC (0, 15, and 30 wt% based on the total solid content of adhesives) were added to the

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Lemke, Renate, and Jörg Ulrich Zilles. "Improving adhesive performance." ADHESION ADHESIVES&SEALANTS 7, no. 1 (2010): 16–18. http://dx.doi.org/10.1007/bf03250467.

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Huang, Guanghua, Haohan Wu, Gongxun Cao, Zhijun Liu, Hanlin Hu, and Shifeng Guo. "Application of a New Polymer Particle Adhesive for Lithium Battery Separators." Coatings 13, no. 1 (2022): 21. http://dx.doi.org/10.3390/coatings13010021.

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Lithium battery separators play a critical role in the performance and safety of lithium batteries. In this work, four kinds of polymer particle adhesives (G1–G4) for lithium battery separators were synthesized via dispersion polymerization, using styrene, butyl acrylate and acrylonitrile as monomers. The particle size/size distributions, particle morphologies and glass transition temperatures (Tg) of polymer particle adhesives were explored using laser particle size analysis, scanning electron microscopy (SEM) and differential scanning calorimetry (DSC), respectively. The adhesion strengths b

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Mercedes Pastor-Blas, M. M. "Compatibility Improvement between Chlorinated Thermoplastic Rubber and Polychloroprene Adhesive." Rubber Chemistry and Technology 82, no. 1 (2009): 18–36. http://dx.doi.org/10.5254/1.3548238.

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Abstract Traditionally, it has been believed that there is an incompatibility between the chlorinated rubber surface and polychloroprene adhesives resulting in a lack of adhesion. However, in this study it has been shown that a polychloroprene adhesive (PCP30P) produces similar T-peel strength values when using a polyurethane (PU) adhesive in joints produced between a chlorinated thermoplastic SBS rubber and roughened leather. In both cases a cohesive failure mode within the rubber was obtained. This polychloroprene adhesive (PCP30P) contains a thermoreactive phenolic resin in its formulation.

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Pradyawong, Sarocha, Guangyan Qi, Meng Zhang, Xiuzhi S. Sun, and Donghai Wang. "Effect of pH and pH-Shifting on Adhesion Performance and Properties of Lignin-Protein Adhesives." Transactions of the ASABE 64, no. 4 (2021): 1141–52. http://dx.doi.org/10.13031/trans.14465.

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HighlightsLignin improved the wet adhesion strength of soy protein adhesives when pH shifted from 8.5 to 4.5.Lignin increased the water resistance of soy protein adhesives from 5% to 40% at pH 12.Lignin improved the thermal resistance of soy protein adhesives.pH and pH-shifting treatments led to property changes of lignin, soy protein, and lignin-soy protein.Abstract. Concerns about public health and the environment have created strong interest in developing alternative green products. The focus of this research was to study the effect of lignin on soy protein (SP) adhesives under different pH

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Yang, Yubin, Jingyu Ding, Xuanyan Zhu, Zilu Tian, and Song Zhu. "Triclosan to Improve the Antimicrobial Performance of Universal Adhesives." Polymers 15, no. 2 (2023): 304. http://dx.doi.org/10.3390/polym15020304.

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To solve the proble ms of composite restoration failure caused by secondary caries, this study reports a light curable antibacterial triclosan derivative (TCS-IH), which was synthesized and added to the existing commercial universal adhesive to achieve a long-term antibacterial effect The effect of mixing different mass percentages of TCS-IH on the bond strength of dentin was also investigated.TCS-IH was synthesized by solution polymerization and characterized by nuclear magnetic resonance hydrogen spectroscopy (1H NMR) and Fourier transform infrared (FTIR) spectroscopy. Two commercial univers

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Tallani, Sachin, Ritesh Singla, Nishu Singla, Madhumitha Natarajan, and Jayaprakash Kukkila. "Clinical performance of light-cured orthodontic adhesives for bonding brackets – an in-vitro study." F1000Research 12 (November 7, 2023): 1442. http://dx.doi.org/10.12688/f1000research.141328.1.

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Background The dental profession is seeing a constant influx of new adhesive systems from manufacturers, each claiming to be more dependable than the last. This study assessed the bond strength and adhesive remnants of different light-cured adhesives used for bonding metal brackets to teeth. Methods 80 extracted maxillary premolars with the sound crown structure were acid etched and bonded with brackets on their buccal surfaces utilizing primer and light-cured adhesives into four equal groups, which are Transbond XT, Heliosit, Enlight, and Bracepaste. Shear bond strength (SBS) for de-bonding t

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Chen, Ming, Zhihao Zhou, Xu Wang, Yangchun Zhao, and Yongmin Zhou. "Performance Study of Diamond Powder-Filled Sodium Silicate-Based Thermal Conductive Adhesives." Materials 16, no. 11 (2023): 3937. http://dx.doi.org/10.3390/ma16113937.

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With the development of miniaturized, highly integrated, and multifunctional electronic devices, the heat flow per unit area has increased dramatically, making heat dissipation a bottleneck in the development of the electronics industry. The purpose of this study is to develop a new inorganic thermal conductive adhesive to overcome the contradiction between the thermal conductivity and mechanical properties of organic thermal conductive adhesives. In this study, an inorganic matrix material, sodium silicate, was used, and diamond powder was modified to become a thermal conductive filler. The i

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Drotlef, D. M., C. B. Dayan, and M. Sitti. "Bio-inspired Composite Microfibers for Strong and Reversible Adhesion on Smooth Surfaces." Integrative and Comparative Biology 59, no. 1 (2019): 227–35. http://dx.doi.org/10.1093/icb/icz009.

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Abstract A novel approach for high-performance gecko-inspired adhesives for strong and reversible adhesion to smooth surfaces is proposed. The composite patterns comprising elastomeric mushroom-shaped microfibers decorated with an extremely soft and thin terminal layer of pressure sensitive adhesive. Through the optimal tip shape and improved load sharing, the adhesion performance was greatly enhanced. A high adhesion strength of 300 kPa together with superior durability on smooth surfaces are achieved, outperforming monolithic fibers by 35 times. Our concept of composite microfibrillar adhesi

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Stark, Alyssa Y., and Christopher T. Mitchell. "Stick or Slip: Adhesive Performance of Geckos and Gecko-Inspired Synthetics in Wet Environments." Integrative and Comparative Biology 59, no. 1 (2019): 214–26. http://dx.doi.org/10.1093/icb/icz008.

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Abstract The gecko adhesive system has inspired hundreds of synthetic mimics principally focused on replicating the strong, reversible, and versatile properties of the natural system. For geckos native to the tropics, versatility includes the need to remain attached to substrates that become wet from high humidity and frequent rain. Paradoxically, van der Waals forces, the principal mechanism responsible for gecko adhesion, reduce to zero when two contacting surfaces separate even slightly by entrapped water layers. A series of laboratory studies show that instead of slipping, geckos maintain

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Zecin-Deren, Anna, Monika Lukomska-Szymanska, Agata Szczesio-Wlodarczyk, Ireneusz Piwonski, Jerzy Sokolowski, and Barbara Lapinska. "The Influence of Application Protocol of Simplified and Universal Adhesives on the Dentin Bonding Performance." Applied Sciences 10, no. 1 (2019): 124. http://dx.doi.org/10.3390/app10010124.

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Contemporary adhesives use etch-and-rinse, self-etch, and multimode adhesive strategies. Simplified and universal adhesives present lower bond strength to dentin than conventional, two-bottle etch-and-rinse adhesives. The purpose of this study was to evaluate bonding performance of simplified and universal adhesives to dentin after modifying their application protocol (multiplying applications and extending application time). Adhesive layer thickness (ALT) and shear bond strength (SBS), as well as the correlation between these parameters was calculated. Two universal (Single Bond Universal and

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Xiang, W., H. Zhang, P. Chen, and Q. Zhao. "Bonding Performance of Epoxy Modified Cement-based Adhesive." Journal of Physics: Conference Series 2476, no. 1 (2023): 012038. http://dx.doi.org/10.1088/1742-6596/2476/1/012038.

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Abstract To improve the bonding properties of cement-based adhesives, epoxy resin is added in this study. The effects of various mix parameters, including epoxy, PVA powder, HPMC, silica fume, and synthetic fibers, and water contents, on the mechanical performance of epoxy modified cement-based adhesives are investigated. Experimental results show when the content of epoxy exceeds 15% of the cement by weight, the bond strength improves by more than 90%. But excessive epoxy adversely reduces the compressive strength of cement-based adhesive. The addition of PVA powder and HPMC also enhances bon

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Guadagno, Liberata, Maria Sarno, Umberto Vietri, Marialuigia Raimondo, Claudia Cirillo, and Paolo Ciambelli. "Graphene-based structural adhesive to enhance adhesion performance." RSC Advances 5, no. 35 (2015): 27874–86. http://dx.doi.org/10.1039/c5ra00819k.

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Graphene platelets, embedded in the adhesive and adherents of epoxy joints, acting on the chemical compatibility at the interface, lead to a considerable improvement in the mechanical performance as compared to the unfilled joints.

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Geiss, Paul Ludwig, and Melanie Schumann. "Polymer Interphases in Adhesively Bonded Joints – Origin, Properties and Methods for Characterization." Materials Science Forum 941 (December 2018): 2249–54. http://dx.doi.org/10.4028/www.scientific.net/msf.941.2249.

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Chemically curing adhesives are formulations requiring reactions to convert from liquid to solid. Once cured, these adhesives carry the potential to create strong load bearing joints, resisting even severe detrimental service conditions. In adhesively bonded joints with chemically curing adhesives the term "interphase" relates to the adhesive volume adjacent to the surface of the adherent (interface), which generally will exhibit properties different from those of the adhesive bulk polymer. The properties of these interphases play an important role concerning the performance and durability of

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Muhammad Zain, Norazwani, Sahrim Haji Ahmad, Nor Azwin Ahad, and Ernie Suzana Ali. "Influence of Isocyanate Structures on Mechanical Performance of Aluminum Bonded with Green Polyurethane Adhesive." Advanced Materials Research 879 (January 2014): 119–27. http://dx.doi.org/10.4028/www.scientific.net/amr.879.119.

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Polyurethane (PU) adhesives were prepared from three different polyols based on polycaprolactone (PCL)/palm kernel oil (PKO) with an aromatic and cycloaliphatic diisocyanate. The adhesives were characterized through Fourier Transformer Infrared (FTIR) spectroscopy in order to ensure the formation of urethane and the completeness of polymer reaction. The effects of NCO/OH ratios and types of diisocyanate on PU adhesive strength were investigated. The adhesive strength of metal to metal bonding was determined by single lap shear joint testing. The correlation between crosslinking of PU network a

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Munafò, Placido, Francesco Marchione, Gianluca Chiappini, and Monica Marchini. "Effect of nylon fabric reinforcement on the mechanical performance of adhesive joints made between glass and GFRP." Frattura ed Integrità Strutturale 16, no. 59 (2021): 89–104. http://dx.doi.org/10.3221/igf-esis.59.07.

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The use of reinforcements in adhesive joints makes the stress distribution more uniform, improving their mechanical performance and adhesion. The present paper aims to verify the effectiveness and efficiency of the insertion of nylon 6 fabric in the adhesive layer, to study their applicability and functionality in building components. The increase in stiffness achieved by applying nylon 6 fabric in the adhesive layer between glass and GFRP pultruded profiles and steel laminates applied to GFRP beams is investigated. Three different epoxy adhesives and one epoxy resin are used and compared. Thr

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Mary, Alex, Pierre Blanchet, Simon Pepin, Julien Chamberland, and Véronic Landry. "Upcycling of protein concentrates from industrial byproducts into polyurethane wood adhesives." BioResources 19, no. 1 (2024): 1165–89. http://dx.doi.org/10.15376/biores.19.1.1165-1189.

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Wood structures generally rely on synthetic adhesives for their strength and versatility. However, environmental concerns linked to the chemical composition of these adhesives have stimulated the search for more environmentally friendly adhesives. Researchers have explored replacing petroleum-based constituents with natural raw materials such as lignins, tannins, and proteins. Of these alternatives, proteins, being biological macromolecules, are recognized for their capacity to enhance adhesion to wood substrates. This study considered the development of protein-based adhesives derived from di

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Yin, Hyemin, Sumin Kwon, Shin Hye Chung, and Ryan Jin Young Kim. "Performance of Universal Adhesives in Composite Resin Repair." BioMed Research International 2022 (May 9, 2022): 1–8. http://dx.doi.org/10.1155/2022/7663490.

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Aim. The objective of this in vitro study was to evaluate the bond strength of universal adhesive systems in self-etch and etch-and-rinse modes at the repair interface between aged and new composite resins. Materials and Methods. Composite resin (Filtek Z250) was thermocycled to represent aged composite resin to be repaired. New composite resin was placed over the aged substrate after surface conditioning: NC (negative control, no surface treatment), A (adhesive only), SBM (Scotchbond Multi-Purpose in etch-and-rinse mode), CSE (Clearfil SE Bond in self-etch mode), SBU (Single Bond Universal),

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Zhang, Jieyu, Yi Zhang, Jianzhang Li, and Qiang Gao. "Development of a High-Performance Adhesive with a Microphase, Separation Crosslinking Structure Using Wheat Flour and a Hydroxymethyl Melamine Prepolymer." Polymers 11, no. 5 (2019): 893. http://dx.doi.org/10.3390/polym11050893.

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The objective of this study is to use wheat flour (WF) and hydroxymethyl melamine prepolymer (HMP) to develop a low cost, highly water-resistant, starch-based bio-adhesive for plywood fabrication. Three-layer plywood was fabricated using the resultant adhesive, and the wet shear strength of the plywood samples was measured under various conditions. After determining that water resistance was significantly improved with the addition of HMP, we evaluated the physical characteristics of the starch-based adhesive and functional groups and analyzed the thermal stability and fracture surface of the

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Dutra, Daniel JB, Natalia TT Branco, Hugo H. Alvim, Cláudia S. Magalhães, Ricardo R. Oliveira, and Allyson N. Moreira. "Bond strength of two universal adhesive systems to human dentin using different strategies." Acta Odontológica Latinoamericana 35, no. 3 (2022): 155–63. http://dx.doi.org/10.54589/aol.35/3/155.

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The objective of this study was to evaluate the microtensile bond strength (μTBS) to dentin of two universal adhesive systems: Single Bond Universal (SBU) and Ambar Universal (AU), used in different adhesion strategies. Materials and Method: Thirty-six human teeth were prepared (n=6) and treated following different adhesive strategies: G1: SBU-etch-and-rinse, applied on dry dentin; G2: SBUetch- and-rinse, applied on moist dentin; G3: SBU-self-etching; G4: AU-etch-and-rinse, applied on dry dentin; G5: AU-etch-and-rinse, applied on moist dentin; G6: AU-self-etching. The specimens were submitted

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Srivaro, Suthon, Zoltán Börcsök, Zoltán Pásztory, and Sataporn Jantawee. "Finger joint performance of green-glued rubberwood (Hevea brasiliensis) lumber." BioResources 14, no. 4 (2019): 9110–16. http://dx.doi.org/10.15376/biores.14.4.9110-9116.

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The feasibility of performing finger jointing of green rubberwood was considered with typical adhesives used for gluing kiln-dried wood. The effect of initial moisture content of rubberwood (12 ± 1.1%, 37.6 ± 3.2%, and 61.2 ± 6.1%), hot air oven-drying temperatures (60 °C, 80 °C, and 100 °C), and types of adhesives (polyurethane (PU) and emulsion polymeric isocyanate (EPI)) on bending and compressive properties of finger jointed rubberwood products were investigated. The controls were manufactured from 12 ± 1.1% moisture content rubberwood. The type of adhesives had no significant effect on th

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Sami, Omnia M., Essam A. Naguib, Rasha H. Afifi, and Shaymaa M. Nagi. "Effect of Different Adhesion Protocols on the Shear Bond Strength of Universal Adhesive Systems to Sound and Artificial Caries-Affected Dentin." European Journal of General Dentistry 10, no. 01 (2021): 030–36. http://dx.doi.org/10.1055/s-0041-1732776.

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Abstract Objective Bonding to different dentin substrates influences resin composite restoration outcomes. This study investigated the influence of different adhesion protocols on the shear bond strength of universal adhesive systems to sound and artificial caries-affected dentin (CAD). Materials and Methods Occlusal enamel of 80 premolars were wet grinded to obtain flat midcoronal dentin. Specimens were equally divided according to the substrate condition: sound and CAD by subjecting to pH-cycling for 14 days. Each dentin substrate was bonded with the adhesive systems used in this study: Sing

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Van Landuyt, K. L., Y. Yoshida, I. Hirata, et al. "Influence of the Chemical Structure of Functional Monomers on Their Adhesive Performance." Journal of Dental Research 87, no. 8 (2008): 757–61. http://dx.doi.org/10.1177/154405910808700804.

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Functional monomers in adhesive systems can improve bonding by enhancing wetting and demineralization, and by chemical bonding to calcium. This study tested the hypothesis that small changes in the chemical structure of functional monomers may improve their bonding effectiveness. Three experimental phosphonate monomers (HAEPA, EAEPA, and MAEPA), with slightly different chemical structures, and 10-MDP (control) were evaluated. Adhesive performance was determined in terms of microtensile bond strength of 4 cements that differed only for the functional monomer. Based on the Adhesion-Decalcificati

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Lee, Sangkyu, Sangyun Lee, Gyuyong Kim, et al. "Effect of Injecting Epoxy Resin Adhesive into Cement Mortar on Tile Adhesion Performance." Applied Sciences 10, no. 23 (2020): 8527. http://dx.doi.org/10.3390/app10238527.

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Large porcelain tiles have attracted increased demand owing to their cost-effectiveness and superior esthetics. Here, an epoxy resin adhesive was injected into cement mortar, which was then applied to tiles. The adhesion performance of the tiles was subsequently evaluated in terms of the permeability and drying shrinkage under various curing conditions. The epoxy resin adhesive not only penetrated the tile–mortar and mortar–concrete interfaces, but also directly penetrated the mortar, thus enhancing the mechanical adhesion at each interface. In addition to the mechanical adhesion between the t

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Villarreal-Gómez, Ana M., Manuel Martínez-Paíno, and José Miguel Martín-Martínez. "New Flexible Cyanoacrylate Tissue Adhesive Adhflex^®: Adhesion and Performance in Inguinal Hernia Repair." Key Engineering Materials 638 (March 2015): 73–78. http://dx.doi.org/10.4028/www.scientific.net/kem.638.73.

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Sutures and cyanoacrylate high strength tissue adhesives are commonly used for wound closure in several surgical applications. Although effective for closing simple and small incisions, cyanoacrylate adhesives were limited by compromising adhesion and stiffness, i.e. cyanoacrylates with short alkyl chain length showed higher adhesion but lower flexibility than the ones with long alkyl chain length. In this paper, a new concept of flexible and high strength tissue cyanoacrylate based adhesive - Adhflex®- is presented. The balance between adhesion and flexibility in Adhflex® was achieved by addi

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