Bibliografie tematiche / COATED PDMS

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Letteratura scientifica selezionata sul tema "COATED PDMS"

Autore: Grafiati
Pubblicato: 11 settembre 2023

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Articoli di riviste sul tema "COATED PDMS"

1

Tang, Daibin, and Enzhou Liu. "Facile Fabrication of Robust and Fluorine-Free Superhydrophobic PDMS/STA-Coated Cotton Fabric for Highly Efficient Oil-Water Separation." Coatings 13, no. 5 (2023): 954. http://dx.doi.org/10.3390/coatings13050954.

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Oil–water separation using special wettability materials has received much attention due to its low energy consumption and high separation efficiency. Herein, a fluorine-free superhydrophobic cotton fabric (PDMS/STA-coated cotton fabric) was successfully prepared by a simple impregnation method using hydroxyl-capped polydimethylsiloxane (PDMS-OH), tetraethoxysilane (TEOS), and stearic acid (STA) as precursors. The investigation found that the cross-linking reactions between the hydroxyl groups of PDMS-OH and hydrolyzed TEOS enabled a strong interaction between PDMS-OH and cotton fabric. Furthe
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Ding, Yin Yan, Bi Xu, Feng Yan Ge, and Zai Sheng Cai. "Robust Superhydrophobic and Photocatalytic Cotton Fabrics Based on TiO2-SiO2-PDMS Composite Coating ." Key Engineering Materials 671 (November 2015): 225–30. http://dx.doi.org/10.4028/www.scientific.net/kem.671.225.

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In this work, self-cleaning cotton fabrics were prepared based on the TiO2-SiO2-Polydimethylsiloxane (PDMS) composites. TiO2-SiO2 composites were synthesized by depositing TiO2 nanocrystals onto preformed porous SiO2 and PDMS was used to enhance the linkage between TiO2-SiO2 composites and cotton fabrics. The TiO2-SiO2-PDMS composites coated cotton fabrics show superhydrophobicity with a water contact angle of 157°because of the abundant of methyl groups and hierarchical roughness features of the coated cotton fabrics. Meanwhile, the TiO2-SiO2-PDMS composites coated cotton fabrics display phot
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3

Shi, Dongyan, Dan Ma, Feiqing Dong, et al. "Proliferation and multi-differentiation potentials of human mesenchymal stem cells on thermoresponsive PDMS surfaces grafted with PNIPAAm." Bioscience Reports 30, no. 3 (2009): 149–58. http://dx.doi.org/10.1042/bsr20090026.

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The thermo-responsivity of PNIPAAm [poly(N-isopropylcarylamide)]-grafted PDMS [poly(dimethylsiloxane)] surface is a property that could be feasibly used for detaching cells adhered on the surface. We used benzophenone-initiated photopolymerization to graft PNIPAAm on PDMS substrates to construct the PNIPAAm-grafted PDMS surface and this PDMS surface was highly thermo-responsive. hMSCs (human mesenchymal stem cells) were used to analyse the proliferation and multi-differentiation of stem cells on the PNIPAAm-grafted PDMS surface. The results showed that hMSCs could adhere on the PNIPAAm-grafted
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Abdul Samad, Yarjan, Yuanqing Li, and Kin liao. "A Novel Graphene Foam for Low and High Strains and Pressure Sensing Applications." MRS Advances 1, no. 1 (2016): 27–32. http://dx.doi.org/10.1557/adv.2016.20.

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ABSTRACTWe are reporting the formation of free-standing graphene foam (GF) via a novel two-step process, in which a polyurethane (PU) foam is first dip-coated with graphene oxide (GO) and subsequently the dried GO-coated-PU is heated in nitrogen atmosphere at 1000°C. During the pyrolysis of the GO-coated-PU, GO is reduced to GF whereas PU is simultaneously decomposed and released completely as volatiles in a step wise mass-loss mechanism. Morphology of the formed GF conforms to that of the pure PU foam as indicated by the scanning electronic micrographs. Polydimethylsiloxane (PDMS) was success
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Wahyuningsih, Sayekti, Rochmad E. Cahyono, and Fitri N. Aini. "Preparation Titanium Dioxide Combined Hydrophobic Polymer with Photocatalytic Self-Cleaning Properties." Bulletin of Chemical Reaction Engineering & Catalysis 15, no. 3 (2020): 874–84. http://dx.doi.org/10.9767/bcrec.15.3.9225.874-884.

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Titanium dioxide (TiO2) and hydrophobic of TiO2/PDMS (PDMS = polydimethylsiloxane) have been prepared as photocatalytic self-cleaning materials. Synthesis of TiO2 was carried out using the sol-gel method with titanium(IV) isopropoxide (TTIP) as a precursor and acetic acid as a solvent at a temperature of about 10–15 °C, while the synthesis of hydrophobic of TiO2/PDMS composites was carried out by a sonication method under ethanol solution. The results of XRD analysis of synthesized TiO2 showed that TiO2 was anatase phase. The glass-coated TiO2/PDMS were prepared by dip-coating under an ultraso
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Zhang, Chunmei, Tianliang Zhai, Chao Zhan, Qiuping Fu, and Chao Ma. "Actuation Behavior of Multilayer Graphene Nanosheets/Polydimethylsiloxane Composite Films." Polymers 10, no. 11 (2018): 1243. http://dx.doi.org/10.3390/polym10111243.

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The graphene nanosheets (GNS)/polydimethylsiloxane (PDMS) composite films with out-of-plane dielectric actuation behavior were prepared through a layer-by-layer spin coating process. The GNS-PDMS/PDMS composite films with 1~3 layers of GNS-PDMS films were spin coated on top of the PDMS film. The dielectric, mechanical, and electromechanical actuation properties of the composite films were investigated. The dielectric constant of the GNS-PDMS3/PDMS composite film at 1 kHz is 5.52, which is 1.7 times that of the GNS-PDMS1/PDMS composite film. The actuated displacement of the GNS-PDMS/PDMS compos
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Zhang, Jingran, Yongda Yan, Peng Miao, and Jianxiong Cai. "Fabrication of gold-coated PDMS surfaces with arrayed triangular micro/nanopyramids for use as SERS substrates." Beilstein Journal of Nanotechnology 8 (November 1, 2017): 2271–82. http://dx.doi.org/10.3762/bjnano.8.227.

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Using the tip-based continuous indentation process, arrays of three-dimensional pyramidal cavities have been successfully machined on a copper template and the structures were successfully transferred to a polydimethylsiloxane (PDMS) surface using a reverse nanoimprinting approach. The structured PDMS surface is coated with a thin Au film, and the final substrate is demonstrated as a surface-enhanced Raman spectroscopy (SERS) substrate. Rhodamine 6G (R6G) was used as a probe molecule in the present study to confirm the SERS measurements. Arrays of micro/nanostructures of different dimensions w
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Yang, Rui, Yunyi Liang, Shu Hong, et al. "Novel Low-Temperature Chemical Vapor Deposition of Hydrothermal Delignified Wood for Hydrophobic Property." Polymers 12, no. 8 (2020): 1757. http://dx.doi.org/10.3390/polym12081757.

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As a hydrophilic material, wood is difficult to utilize for external applications due to the variable weather conditions. In this study, an efficient, facile, and low-cost method was developed to enhance the hydrophobicity of wood. By applying the low-temperature chemical vapor deposition (CVD) technology, the polydimethylsiloxane-coated wood (PDMS@wood) with hydrophobic surface was fabricated employing dichlorodimethylsilane as the CVD chemical resource. The result of water contact angle (i.e., 157.3°) revealed the hydrophobic behavior of the PDMS@wood. The microstructures of the wood samples
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Taşdemir, Muharrem, Fatih Şenaslan, and Ayhan Çelik. "Investigation of corrosion and thermal behavior of PU–PDMS-coated AISI 316L." e-Polymers 21, no. 1 (2021): 355–65. http://dx.doi.org/10.1515/epoly-2021-0035.

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Abstract Polydimethylsiloxane (PDMS) is widely used from biomedical to industrial applications due to its nontoxic, hydrophobic, and transparent characteristics. PDMS has good thermal and adhesion properties; however, its mechanical properties are comparatively weak. Therefore, PDMS is blended with various polymers to effectively improve its mechanical properties. In this study, polyurethane (PU)–polydimethylsiloxane (PDMS) blended coatings of different concentrations were applied on the AISI 316L stainless steel surface. Their effects on corrosion and tribocorrosion properties were investigat
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Aulia, Rahmi Khairani, Mark W. Beatty, and Bobby Simetich. "Effect of Superhydrophobic Coating and Nanofiller Loading on Facial Elastomer Physical Properties." Materials 15, no. 20 (2022): 7343. http://dx.doi.org/10.3390/ma15207343.

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Facial prosthetics are currently constructed of materials that are far from optimal; superior materials with a “skin-like” feel are required. In this study, the property changes brought about by the consecutive additions of hydrophobic- and uncoated nano-SiO2 to polydimethylsiloxane (PDMS) are assessed, and the alterations are compared with those observed for conventional submicron SiO2-filled materials. In sequence, 0%, 0.5%, 5%, 10%, and 15% by weight of each filler type were successively added to vinyl-terminated PDMS. Tensile, tear, Durometer hardness, translucency, and viscoelastic proper
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Tesi sul tema "COATED PDMS"

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Edberg, Jennie. "Kappor inom damkonfektion : från grund till modell." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-16837.

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Bakgrunden till rapporten var att det företag som medverkat i studien ville utveckla ett grundmönster för damkappor. Syftet med arbetet blev därför att utarbeta ett grundmönster med två ärmtyper som graderas mellan storlek 32-50, samt konstruera en kappmodell från samma grund. Utöver detta skulle även detaljkonstruktioner och specifikationer utformas. Frågeställningarna som styrde arbetet kretsade därför kring hur man på bästa sätt tar fram detta.All konstruktion utfördes i Lectra´s Modaris. För att ta fram grundmönstret jämfördes två arbetssätt för att sedan välja en av de grunder som konstru
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Chen, Yi-chieh, and 陳逸杰. "Fabrication of PDMS Waveguide Coated with Gold Nano-particles and Its Localized SPR Applications." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/d64d3w.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>96<br>This research proposes a novel polymer-based optical waveguide made with Polydimethylsiloxane (PDMS) for optical detection applications. Alternative to other fiber-based sensor, the proposed optical sensor uses PDMS waveguide as the main sensing component. PDMS has excellent optical properties which is essential for bio-photonic detection, including highly optical transparency, good flexibility and high bio-compatibility. Uncured PDMS polymer is cast in a Teflon tubing to form the PDMS rod. Since the reflective index of PDMS is as high as 1.43, that the ba
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PRASAD, SHRITI. "CORE SHELL POLY (DIMETHYLSILOXANA)--VINYL ESTER MICROSPHERE AS IMPACT MODIFIER FOR VINYL ESTER THERMOSETS." Thesis, 2015. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15581.

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We report a two-step method for preparation of core shell elastomeric microspheres (CSR) using suspension polymerisation process and demonstrate its potential which proves it as an effective impact modifier for thermosetting vinyl ester resin. The first step involves suspension addition curing of siloxane macromonomer with platinum based hydrosilylation catalyst. The result of reaction parameters on the particle size distribution was decided and the elastomeric microspheres were eventually coated to prepare core-shell (PDMS-vinyl ester) microspheres. Vinyl ester composites were prepared by var
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Capitoli di libri sul tema "COATED PDMS"

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Huikko, K., P. Östman, K. Grigoras, et al. "PDMS Electrospray Devices Fabricated by PDMS-Diamond-Coated SU-8 Masters." In Micro Total Analysis Systems 2002. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0295-0_169.

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Febriani, Dina, Indah K. Sulistiyorini, Yoki Yulizar, et al. "PDMS-Coated Rosa Centifolia Flower: Characterization and Their Stability in Toner Solutions." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3934-0_20.

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Lakshmanan, Dinesh, and Srijith Kanakambaran. "Simulation Studies on Force Sensor Using PDMS Coated Fiber Bragg Grating for Robot-Assisted Surgery." In Lecture Notes in Electrical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2818-4_20.

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David, F., N. Ochiai, and P. Sandra. "Stir Bar Sorptive Extraction: A Versatile, Sensitive and Robust Technique for Targeted and Untargeted Analyses." In Evolution of Solid Phase Microextraction Technology. The Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839167300-00175.

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Developed in the late 1990s, stir bar sorptive extraction (SBSE) has become a very powerful extraction and enrichment technique for the determination of organic compounds in a large variety of liquid, semi-liquid and solid matrices. Based on the same sorptive extraction fundamentals as solid phase micro-extraction (SPME), SBSE had found its way to research and routine laboratories since coated stir bars and dedicated desorption equipment have become commercially available. In this chapter, the development, fundamentals, workflows and new modes of SBSE are discussed. Most attention is paid to the use of stir bars coated with polydimethylsiloxane (PDMS), since these sorptive extraction devices have proven robustness and can be considered a valuable tool in an analytical toolbox.
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"Magnetic response of aligned nickel coated carbon fibres in a PDMS matrix." In Constitutive Models for Rubber IX. CRC Press, 2015. http://dx.doi.org/10.1201/b18701-36.

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Mark, James E., Dale W. Schaefer, and Gui Lin. "Surfaces." In The Polysiloxanes. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780195181739.003.0008.

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Because of the great importance of the surface properties of the polysiloxanes, this topic is treated separately in this chapter. Hydrophobic polysiloxanes having simple aliphatic or aromatic side groups have surfaces that show essentially no attraction to water. In fact, polysiloxanes can serve as water repellants. This property is very useful for applications such as protective coatings on historical monuments and for controlling the surfaces of other polymers, sensors, and quantum dots. Hydrophobic surfaces can be readily regenerated if the surface becomes damaged. Regeneration occurs by rearrangements of the polysiloxane chains so that the hydrophobic methyl groups are once again covering the surface. The flexibility of the siloxane chain backbone facilitates this process. It is also possible to prepare hydrophobic films using methyl-modified siloxane melting gels. Glass surfaces or wool fibers can be coated with polydimethylsiloxane (PDMS) to make them more hydrophobic. In some cases, it is necessary to modify a polysiloxane surface to make it hydrophilic or hydrophobic. Hydrophobization is one aspect of the general topic of modifying and managing the properties of polymer surfaces. An important example involves soft contact lenses that contain PDMS, which is often used because of its very high permeability to oxygen, which is required for metabolic processes within the eye. Such lenses do not feel comfortable however because they do not float properly on the aqueous tears that coat the eye. There are a number of ways to modify the surfaces. There is even a way to make “unreactive” silicones react with inorganic surfaces. In some applications it is useful to have hydrophilicity in the bulk of the polymer instead of just at the surface. One way of doing this is by simultaneously end linking hydrophilic poly(ethylene glycol) (PEG) chains and hydrophobic PDMS chains. Another way is to make a PDMS network with a trifunctional organosilane R’Si(OR) end linker that contains a hydrophilic R’ side chain, such as a polyoxide. Treating only the surfaces is another possibility, for example, by adding hydrophilic brushes by vapor deposition/hydrolysis cycles. Such hydrophilic polysiloxanes can also serve as surfactants.
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Atti di convegni sul tema "COATED PDMS"

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Tseghai, Granch Berhe, Benny Malengier, Kinde Anlay Fante, Abreha Bayrau Nigusse, Bulcha Belay Etana, and Lieva Van Langenhove. "PEDOT:PSS/PDMS-coated cotton fabric for ECG electrode." In 2020 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). IEEE, 2020. http://dx.doi.org/10.1109/fleps49123.2020.9239526.

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Ning, Xiangping, Li Han Chen, Chun Liu Zhao, and Chi Chiu Chan. "PDMS Film Coated Fiber Volatile Organic Compounds Sensor." In Workshop on Specialty Optical Fibers and their Applications. OSA, 2015. http://dx.doi.org/10.1364/wsof.2015.wt4a.40.

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Park, Dong-su, Jiajun Xu, and Kyoung-Su Park. "Wettability Control of PDMS Surface Coated on the Glass Using Ultrasonic Vibration Treatment." In ASME 2020 29th Conference on Information Storage and Processing Systems. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/isps2020-1954.

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Abstract In this study, a method was proposed to change the surface roughness of Polydimethylsiloxane (PDMS) membrane, a hydrophobic material coated on circular steel substrates, using ultrasonic vibration with frequency above 20 kHz to control the surface tension of water droplet on the PDMS membrane. Ultrasonic vibration applied from piezo actuator was transmitted through circular steel substrate to PDMS membrane and it made the PDMS (liquid) vibrated. It made surface roughness of PDMS membrane changed. The results of coating the PDMS membrane on the circular steel substrate and measuring th
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Angappan, M., Pritom J. Bora, Meghana Jois HS, et al. "PDMS-Ni coated flyash cenosphere composite for broadband microwave absorption." In 2018 4th IEEE International Conference on Emerging Electronics (ICEE). IEEE, 2018. http://dx.doi.org/10.1109/icee44586.2018.8937977.

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Jiang, Shaocui, Mengjiao Wang, Peng Yang, Zenghui Wang, and Baojin Peng. "Temperature sensor based on tapered no-core fiber coated with PDMS." In 9th Symposium on Novel Photoelectronic Detection Technology and Applications (NDTA2022), edited by Wenqing Liu, Hongxing Xu, and Junhao Chu. SPIE, 2023. http://dx.doi.org/10.1117/12.2664092.

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Frenkel, Matthew, and Zhixiong Guo. "Cryogenic Temperature Monitoring via Optical PDMS Sensors." In ASME 2016 Heat Transfer Summer Conference collocated with the ASME 2016 Fluids Engineering Division Summer Meeting and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ht2016-7188.

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Abstract (sommario):
PDMS micro-sensors coated onto an electrical wire are used to measure dynamic temperature variation at cryogenic range based on optical whispering-gallery mode (WGM) frequency shift principle. We designed a lab cryogenic cell via filling liquid nitrogen to create a stable low temperature down to 95K. The electrical wire is current carrying to simulate a working electrical/electronic component/device. The temperature variation due to Joule heating is monitored. The sensors are tested for their real time temperature monitoring capabilities and accuracy in the cryogenic temperature regime of 95–1
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Liu, Shuyi, Changyu Shen, Chong Zhang, et al. "Peanut-type fiber based hydrogen sensor coated by PDMS covered with WO3/SiO2." In 2019 18th International Conference on Optical Communications and Networks (ICOCN). IEEE, 2019. http://dx.doi.org/10.1109/icocn.2019.8933957.

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Banait, Arya, Vivek Vishwakarma, Leila Choobineh, and Ankur Jain. "Growth of Patterned Micropores in Poly-Dimethylsiloxane (PDMS) Using the Thermocapillary Effect." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-65865.

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Abstract (sommario):
Poly-dimethylsiloxane (PDMS) is a well-known soft polymer with applications in a wide variety of research fields. PDMS is a particularly attractive material for miniaturized bioanalytical systems because of its biocompatibility, gas permeability, chemical inertness and the ability to reproduce miniature features such as microchannels in PDMS. This paper describes a technique to obtain through-membrane pores in thin PDMS membranes. This is based on thermocapillary effect in a MEMS-based microheater device made on a glass substrate. Uncured PDMS is poured on a microheater device that has been co
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Duo, Yi, Zheng Zenan, Geng Youfu, Li Xuejin, and Hong Xueming. "PDMS-coated fiber optic interferometer based on no-core fiber for multi-parameter measurements." In International Conference on Optical Instruments and Technology 2019: Optical Sensor and Applications, edited by Xuping Zhang and Hai Xiao. SPIE, 2020. http://dx.doi.org/10.1117/12.2548405.

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Kyung-Il Joo, Yeonjeong Han, Chang-sub Park, et al. "Optical sensing of solvents using selective tensile effects of a PDMS-coated Fiber Bragg Grating." In 2010 Ninth IEEE Sensors Conference (SENSORS 2010). IEEE, 2010. http://dx.doi.org/10.1109/icsens.2010.5689950.

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