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Artículos de revistas sobre el tema "Room temperature vulcanization"

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Publicado: 7 de diciembre de 2024
Última modificación: 31 de julio de 2025

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1

Kittipoomwong, Prakorn, and Thirawudh Pongprayoon. "Degree of Vulcanization of Rubber Latex by Capillary Viscometer." Key Engineering Materials 728 (January 2017): 313–17. http://dx.doi.org/10.4028/www.scientific.net/kem.728.313.

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The degree of vulcanization of latex compound was determined by capillary viscometer with controlled temperature to study effect of time and temperature on vulcanization process. The standard equilibrium swelling test was also conducted to assess the degree of vulcanization. A latex compound for medical glove was investigated. The latex viscosity was observed to increase over time at above room temperature condition. On the other hand, the viscosity fluctuated around mean value at room temperature. This is partly consistent with the swell ratio measurement which complete vulcanization was obse
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2

Senemar, Mohammad, Behzad Niroumand, Ali Maleki, and Pradeep K. Rohatgi. "Synthesis of the in situ aluminum matrix composite through pyrolysis of high temperature vulcanization silicone." Journal of Composite Materials 52, no. 1 (2017): 123–34. http://dx.doi.org/10.1177/0021998317702955.

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In this study, in situ aluminum matrix composites were synthesized through pyrolysis of high temperature vulcanization silicone in commercially pure aluminum melt. For this purpose, 1 to 4 wt% of high temperature vulcanization silicone was added to a vortex of molten aluminum at 750℃ and the resulting slurries were cast in steel dies. Microstructure, hardness, and tensile properties of the as-cast samples were examined at ambient and high temperatures. The results revealed the in situ formation and distribution of reinforcement particles in the matrix. Energy-dispersive X-ray analysis indicate
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3

Zhao, Yuxin, Jianan Hou, Jiasi Xu, Chunfa Ouyang, and Qun Gao. "Self-healing properties of dual cross-linked brominated butyl rubber(BIIR)." Journal of Physics: Conference Series 2954, no. 1 (2025): 012029. https://doi.org/10.1088/1742-6596/2954/1/012029.

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Abstract Ion crosslinking stands as an effective method for achieving self-healing properties in rubber materials. In this study, leveraging the reactive nature of zinc oxide (ZnO) and methacrylic acid (MAA) to form zinc methacrylate (ZDMA) in situ, a dual cross-linked network comprising ionic and covalent bonds was established within brominated butyl rubber (BIIR). Investigations demonstrate that BIIR formulations incorporating ion crosslinking exhibit self-healing capabilities even at room temperature. Nevertheless, the material properties exhibit divergent trends concerning mechanical stren
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4

Fawcett, Amanda S., John B. Grande, and Michael A. Brook. "Rapid, metal-free room temperature vulcanization produces silicone elastomers." Journal of Polymer Science Part A: Polymer Chemistry 51, no. 3 (2012): 644–52. http://dx.doi.org/10.1002/pola.26414.

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5

Tonkin, Samuel J., Christopher T. Gibson, Jonathan A. Campbell, et al. "Chemically induced repair, adhesion, and recycling of polymers made by inverse vulcanization." Chemical Science 11, no. 21 (2020): 5537–46. http://dx.doi.org/10.1039/d0sc00855a.

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6

Versloot, P., J. G. Haasnoot, J. Reedijk, M. van Duin, and J. Put. "Sulfur Vulcanization of Simple Model Olefins, Part IV: Vulcanizations of 2,3-Dimethyl-2-Butene with TMTD and Activated Zinc Dithiocarbamate/Xanthate Accelerators at Different Temperatures." Rubber Chemistry and Technology 68, no. 4 (1995): 563–72. http://dx.doi.org/10.5254/1.3538757.

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Abstract The mechanism of the accelerated sulfur vulcanization of rubber was studied by the use of 2,3-dimethyl-2-butene (C6H12, TME) as a simple, low-molecular model alkene. Treatment of TME with a mixture of ZnO, S8 and the classical accelerator TMTD at temperatures above 100°C yields a mixture of addition products ((C6H11—Sn—C6H11) ). In the temperature range of 50 up to 100 °C only intermediate products, C6H11—Sn—S(S)CN(CH3)2 are obtained. Room temperature vulcanization is feasible using highly reactive accelerators, such as xanthate derivatives. These derivatives result in formation of th
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7

Yahya, Siti Rohana, Farah Nadiah Hamdan, Azura A. Rashid, and Baharin Azahari. "The Effect of Pre-Vulcanization Temperature on Mechanical and Rheological Properties of Starch Filled Natural Rubber Latex Compounds." Advanced Materials Research 858 (November 2013): 184–89. http://dx.doi.org/10.4028/www.scientific.net/amr.858.184.

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The main objective of this study was to investigate the effect of the pre-vulcanization temperature on mechanical and rheological properties of starch filled natural rubber (NR) latex films. The 10 phr filler loading of starch was added into the latex prior to the pre-vulcanization process at 60°C to 140°C. The dipped films were cured in the oven at 100°C for 20 minutes and cooled at room temperature for 24 hours before stripping. The rheological properties of NR latex compounds were studied based on the viscosity measurement. The tensile and tear tests of starch filled NR latex films were als
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8

Richers, Casseday P., Jeffery A. Bertke, and Thomas B. Rauchfuss. "Syntheses of transition metal methoxysiloxides." Dalton Transactions 46, no. 27 (2017): 8756–62. http://dx.doi.org/10.1039/c6dt04205h.

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9

Sample, Caitlin S., Sang-Ho Lee, Shaoguang Li, et al. "Metal-Free Room-Temperature Vulcanization of Silicones via Borane Hydrosilylation." Macromolecules 52, no. 19 (2019): 7244–50. http://dx.doi.org/10.1021/acs.macromol.9b01585.

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10

Joseph, Rani. "HXNBR Coating for Improving Aging Resistance of Natural Rubber Products." Rubber Chemistry and Technology 79, no. 4 (2006): 553–60. http://dx.doi.org/10.5254/1.3547951.

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Abstract HXNBR (Hydrogenated Carboxylated Nitrile Rubber) has very good heat ageing resistance and oil resistance. A novel accelerator system is designed to bring about the vulcanization of HXNBR at room temperature. The room temperature cured samples showed good mechanical properties equivalent to those of high (150 °C) temperature cured samples. Natural rubber vulcanizates are highly prone to oxidative and ozone degradation. The oil resistance of natural rubber vulcanizates is also very low. The oil resistance, ozone and oxidative degradation resistance of natural rubber vulcanizates are con
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11

Li, Dong, Hong Xia Chen, Zhu Chen, Yang Li, Shu Xin Wu, and Ji Gui Wang. "Mechanical and Ablative Properties of Polyacrylonitrile(PAN)/RTV Silicone Internal Insulating Composites." Advanced Materials Research 399-401 (November 2011): 403–6. http://dx.doi.org/10.4028/www.scientific.net/amr.399-401.403.

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The polyacrylonitrile short fibers/ room temperature vulcanizing silicone rubber (PAN/RTV silicone) composites were prepared by mechanical mixing method and vulcanization at room temperature for 7 days as internal insulator. The effects of the content of fiber on the mechanical and ablative performances for the composites were investigated. The results show that with increasing content of PAN fiber filled, the tensile strength increases, the break elongation decreases, and the ablation rate(Rt) of PAN/silicone composites decreases rapidly at first, then increases. When PAN fiber content is 10p
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12

Versloot, P., J. G. Haasnoot, P. J. Nieuwenhuizen, J. Reedijk, M. van Duin, and J. Put. "Sulfur Vulcanization of Simple Model Olefins, Part V: Double Bond Isomerization during Accelerated Sulfur Vulcanization as Studied by Model Olefins." Rubber Chemistry and Technology 70, no. 1 (1997): 106–19. http://dx.doi.org/10.5254/1.3538411.

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Abstract The sulfur vulcanization of unsaturated rubber has been studied with the use of various olefins as simple, low-molecular models. By treatment of these olefins with a mixture of zinc oxide, sulfur, and tetramethylthiuram disulfide (TMTD) at 140 °C, a mixture of dialkenyl sulfides is obtained mimicking crosslinked rubber. Isomerization of the double bond may take place during this reaction, depending on the olefin used. The position of the double bond is on the one hand determined by crosslink formation mechanisms, and on the other hand by isomerization, which takes place at higher temp
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13

Zhao, Su Fen, Li Qong Zhang, Xiao Yan Liu, Zhi Gang Tu, and Chen Zhang. "Study on the Modification of Concentrated Emulsion of Organosilicon for Propagating Ethanol Permselective Pervaporation Film." Advanced Materials Research 1004-1005 (August 2014): 808–11. http://dx.doi.org/10.4028/www.scientific.net/amr.1004-1005.808.

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Vinyl-cyclosilane and styrene were introduced to harden the polysiloxane via radical crosslinking ensuring the independency of the particles and the generation of the micro-channels. After the emulsion had been prepared, when the shape of emulsion particles became stable, the room temperature vulcanization crosslinker was added to form the separation membrane.
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14

Chen, Zhu, Dong Li, Ai Juan Shi, Yang Li, and Shu Xin Wu. "Properties Characteristics of Silicone Inhibitors." Advanced Materials Research 750-752 (August 2013): 43–46. http://dx.doi.org/10.4028/www.scientific.net/amr.750-752.43.

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The short carbon fibers/ room temperature vulcanizing silicone rubber composites were prepared by mechanical mixing method and vulcanization at room temperature for 7 days as internal insulator. The effects of the content of fiber on the mechanical , ablative and adhesive performances for the composites were investigated. The results show that with increasing content of carbon fiber filled, the tensile strength increases, the break elongation decreases, and the ablation rate (Rt) of the composites decreases rapidly at first, then increases. When carbon fiber content is 10phr, the ablation rate
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15

Luo, Weiqi, Zhimin Li, Haihua Luo, et al. "Preparation of Room Temperature Vulcanized Silicone Rubber Foam with Excellent Flame Retardancy." Scanning 2021 (May 20, 2021): 1–8. http://dx.doi.org/10.1155/2021/9976005.

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To retard the spread of fire in many cases with sealing materials is significant. A series of silicone rubber foam materials were prepared with room temperature vulcanization and foaming reactions. The morphology, chemical structure, cell structure, and thermal stability were investigated and results proved that the synthesis of silicone rubber was successful in a wide range of feed ratios. The fire-retardant tests were carried out to study the fire-proof property of the composite materials, and the excellent performance showed a promising prospect for wide application in sealing materials.
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16

Coran, A. Y. "New Elastomers by Reactive Processing. Part I. Vulcanizable Precured Alloys from NBR and ACM." Rubber Chemistry and Technology 63, no. 4 (1990): 599–612. http://dx.doi.org/10.5254/1.3538276.

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Abstract The dynamic vulcanization of ACM (the dispersed phase) during its mixing with NBR (the continuous phase) can produce a new type of millable specialty elastomer alloy. The millable dynamic vulcanizate containing the crosslinked dispersed phase can be later mixed with curatives for the continuous phase, fillers, antidegradants, etc. The completed mixture of millable dynamic vulcanizate with the additional curatives (for the NBR), fillers, stabilizers, etc. can then be vulcanized e.g., in a heated mold. Thus, the dynamic vulcanization technique is a means of separately controlling the vu
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17

Wu, Zheng-Xue, Le-Qing Fan, Jiao-Juan Chen, et al. "Amorphous Co-Mo-S nanospheres fabricated via room-temperature vulcanization for asymmetric supercapacitors." Journal of Colloid and Interface Science 649 (November 2023): 880–89. http://dx.doi.org/10.1016/j.jcis.2023.06.163.

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18

Ansar, Asnaeni, Dahlang Tahir, Bualkar Abdullah, Nurhasmi, Siti Fatimah, and Jusmawang. "Physical Characteristics of Soft Tissue Phantom from Silicone Rubber Based Vulcanization System." Materials Science Forum 966 (August 2019): 194–99. http://dx.doi.org/10.4028/www.scientific.net/msf.966.194.

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Phantom from silicone rubber base material has been synthesized without glycerin and with additional glycerin of 10%, 20%, 30% and 40%. The type of Silicone rubber used is Room Temperature Vulcanized (RTV) 52 with a vulcanization system at room temperature. The concentration of catalyst is 5% from silicone rubber. Sample has characterized by using physical testing, Fourier Transform Infra Red (FTIR) and elastic modulus measurements. Physical testing result shows that phantoms have low degradation and can be applicated in a long time. FTIR data shows a phantom structure is poly (dimethylsiloxan
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19

Guo, Mei Xia, Shou Hong Xue, Yuan Yuan Zhang, Zhi Ying Wang, and Wen Zhan Zhang. "A Study of Performance on Anti-Pollution Flashover Coating Based on Composite Room Temperature Vulcanized Silicone Rubber." Advanced Materials Research 772 (September 2013): 20–24. http://dx.doi.org/10.4028/www.scientific.net/amr.772.20.

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The article totally discusses the influence of polytetrafluoroethylene (PTFE) to the property of room temperature vulcanization silicone rubber (RTV) pollution flashover coating, inclduding hydrophobic, corrosion resistance and heat resistance. It is turned out that the PTFE can effectively improve the corrosion resistance of the coating only if the contents of PTFE has no impact on the mechanical property, flame retaradant and heat resisting property of the coating and highly enhances the hydrophobicity property.
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20

Vladkova, Todorka G., Alexander Chr Alaminov, and Milka G. Pankova. "A Study of the Interactions Between Oligoamidephosphate (OAPh) and Curatives in a Sulphenamide-Accelerated Sulphur Vulcanizing System." Journal of Polymer Engineering 19, no. 2 (1999): 95–108. http://dx.doi.org/10.1515/polyeng-1999-0203.

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Abstract The possible interactions between oligoamidephosphate (OAPli) and the curatives of a sulphenamide-accelerated sulphur vulcanizing system were studied by differential scanning calorimetry, IR-spectroscopy, and X-ray analysis. The interactions in double mixtures were between OAPh and zinc oxide (ZnO) and OAPh and sulphur. The OAPh/ZnO interaction that starts at room temperature seems to be the key for understanding the peculiarities of sulphenamide-accelerated sulphur vulcanization in the presence of OAPh.
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21

Gümrük, Recep, Uğur Mazlum, and R. A. W. Mines. "COMPRESSIVE MECHANICAL BEHAVIORS OF HYBRID COMPOSITE MATERIALS BASED ON MICRO LATTICE STRUCTURE AND RUBBERLIKE MATERIALS." Rubber Chemistry and Technology 88, no. 1 (2015): 147–62. http://dx.doi.org/10.5254/rct.14.86921.

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ABSTRACT This article investigates compressive and energy absorption characteristics for composites obtained by filling stainless steel micro lattice materials, manufactured via the selective laser melting method, with three different rubbers, including room temperature vulcanization silicone, natural rubber, and neoprene rubber. At the stage of building the composites with natural and neoprene rubbers, an experimental setup was designed for these two rubbers to be infiltrated into lattice spaces under vulcanization temperatures and high pressures. The results showed that the composites with s
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22

Ravikumar, K., K. Palanivelu, and K. Ravichandran. "Vulcanization, Mechanical and Dielectric Properties of Carbon Black/Nanoclay Reinforced Natural Rubber Hybrid Composites." Applied Mechanics and Materials 766-767 (June 2015): 377–82. http://dx.doi.org/10.4028/www.scientific.net/amm.766-767.377.

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In this present work the effect of reinforcement of hybrid fillers such as nanoclay and carbon black in natural rubber were studied. Sodium bentonite clay was organically modified with octadecyl amine using cation exchange reaction and characterized by FTIR, XRD and SEM. The organomodified clay with 5 phr loading and also with carbon black (CB) of 25 phr loading were incorporated into natural rubber by using a two-roll mixing mill. Vulcanization, mechanical and dielectric properties were studied. Vulcanization and mechanical properties of natural rubber increases on addition of organomodified
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23

Ali Mousa, saif, and Zainab Saleh Abdullah. "The influence of tantalum oxide nanoparticle on thermal conductivity and tear strength after addition on maxillofacial silicone." F1000Research 14 (April 22, 2025): 189. https://doi.org/10.12688/f1000research.159001.3.

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Background Maxillofacial prosthetic materials exhibit a range of qualities that vary considerably, including the hardness and stiffness of alloys and polymers, as well as the flexibility of elastomers and soft polymers. Silicone elastomers are the primary materials employed for maxillofacial prostheses due to their physical properties, which allow for adaptation to the movement of soft tissue. They also exhibit exceptional tensile and tear strength across a broad temperature range. Silicone elastomers can be classified according to the vulcanization process: High-temperature vulcanization (HTV
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24

Ali Mousa, saif, and Zainab Saleh Abdullah. "The influence of tantalum oxide nanoparticle on thermal conductivity and tear strength after addition on maxillofacial silicone." F1000Research 14 (March 17, 2025): 189. https://doi.org/10.12688/f1000research.159001.2.

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Background Maxillofacial prosthetic materials exhibit a range of qualities that vary considerably, including the hardness and stiffness of alloys and polymers, as well as the flexibility of elastomers and soft polymers. Silicone elastomers are the primary materials employed for maxillofacial prostheses due to their physical properties, which allow for adaptation to the movement of soft tissue. They also exhibit exceptional tensile and tear strength across a broad temperature range. Silicone elastomers can be classified according to the vulcanization process: High-temperature vulcanization (HTV
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25

Han, Wei, and You Hong Tang. "Water-Swelling Rubber Containing Small Amount of Nanofillers with Enhanced Water Swelling Durability." Advanced Materials Research 774-776 (September 2013): 544–47. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.544.

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A series of water-swelling rubbers (WSR) were prepared by directly mixing room temperature vulcanization-2 components silicone rubber (RTV-2 SR) with superabsorbent polymer (SAP) and nanofiller (s) (halloysite nanotube or/and CaCO3). The effects of component on its mechanical behaviours and water-absorbent properties such as degree of swelling, swelling ratio, and weight loss ratio were investigated. The equilibrium swelling ratio increased with increasing amounts of water-absorbent resin. Well-dispersed nanofiller (s) increased the mechanical properties of WSR and prevented SAP breaking off f
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26

Gubanski, S. M., and M. S. E. Wang. "Vulcanization influence on TSD currents and wettability of room temperature vulcanized silicone rubber hv insulator coatings." European Transactions on Electrical Power 3, no. 5 (2007): 367–73. http://dx.doi.org/10.1002/etep.4450030508.

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27

Danikas, M. G., and M. Gubanski. "Vulcanization influence on tsd currents and wettability of room temperature vulcanized silicone rubber hv insulator coatings." European Transactions on Electrical Power 4, no. 4 (2007): 317–19. http://dx.doi.org/10.1002/etep.4450040410.

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28

Abbas, Karim, Lukas Hedwig, Nicolae Balc, and Sebastian Bremen. "Advanced FFF of PEEK: Infill Strategies and Material Characteristics for Rapid Tooling." Polymers 15, no. 21 (2023): 4293. http://dx.doi.org/10.3390/polym15214293.

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Traditional vulcanization mold manufacturing is complex, costly, and under pressure due to shorter product lifecycles and diverse variations. Additive manufacturing using Fused Filament Fabrication and high-performance polymers like PEEK offer a promising future in this industry. This study assesses the compressive strength of various infill structures (honeycomb, grid, triangle, cubic, and gyroid) when considering two distinct build directions (Z, XY) to enhance PEEK’s economic and resource efficiency in rapid tooling. A comparison with PETG samples shows the behavior of the infill strategies
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29

Ahmad, Mohd Hafizi, Nouruddeen Bashir, Zolkafle Buntat, et al. "Temperature Effect on Electrical Treeing and Partial Discharge Characteristics of Silicone Rubber-Based Nanocomposites." Journal of Nanomaterials 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/962767.

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This study investigated electrical treeing and its associated phase-resolved partial discharge (PD) activities in room-temperature, vulcanized silicone rubber/organomontmorillonite nanocomposite sample materials over a range of temperatures in order to assess the effect of temperature on different filler concentrations under AC voltage. The samples were prepared with three levels of nanofiller content: 0% by weight (wt), 1% by wt, and 3% by wt. The electrical treeing and PD activities of these samples were investigated at temperatures of 20°C, 40°C, and 60°C. The results show that the characte
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30

Liu, Yong, Xin Wang, Yu Mei Ding, and Wei Min Yang. "Encapsulating and Manufacture Technology Study of Impact-Resisting, Enclosed Soft Aramid Vesicle." Materials Science Forum 686 (June 2011): 752–57. http://dx.doi.org/10.4028/www.scientific.net/msf.686.752.

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In order to get a soft and enclosed vesicle which can endure an instantaneous high temperature and super high pressure the soaking technology of aramid fiber with Room Temperature Vulcanization silicon rubber and liquid polyurethane was studied. Then the performance of the composites was tested. Two kinds of rubber vesicle were made, one with metal valve and another without the valve. Using three-dimension braid method, aramid fiber vesicle was made outside the rubber vesicle. Compression test results of the composite vesicle showed that no-valve rubber vesicle had a good match with the aramid
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31

Alvarez Grima, M. M., J. G. Eriksson, A. G. Talma, R. N. Datta, and J. W. M. Noordermeer. "Mechanistic Studies into the New Concept of Co-Agents for Scorch Delay and Property Improvement in Peroxide Vulcanization." Rubber Chemistry and Technology 82, no. 4 (2009): 442–60. http://dx.doi.org/10.5254/1.3548257.

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Abstract In previous studies a new concept of a peroxide cure system for rubber has been reported where scorch safety and mechanical properties are improved at the same time. This new system consists of the use of a combination of a peroxide, a bismaleimide type co-agent and a sulfur spender for the cure of saturated or low-unsaturated rubber. Several mechanical properties have been studied and were found to be improved by using this curing system, such as tensile strength, moduli, compression set and aging. The present paper deals with the understanding of the reported phenomena. Mechanistic
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32

Khaigunha, Pattarabordee, and Tanakorn Wongwuttanasatian. "An Improvement on Tracking Resistance of Silicone Rubber Filled with Micro-Wollastonite/Gehlenite Synthesized by Solid-State Reaction." Key Engineering Materials 902 (October 29, 2021): 107–11. http://dx.doi.org/10.4028/www.scientific.net/kem.902.107.

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Enhancement of the room temperature vulcanization silicone rubber (RTV) tracking resistance with various filler loadings of synthesized wollastonite against electrical surface tracking was prepared. The X-ray diffraction (XRD), Scanning electron microscope (SEM), and X-ray fluorescent (XRF) techniques were involved in characterizing the synthesized substances. The test method IEC-60587 standard was employed to evaluate the surface tracking resistance. The results obtained from the XRF technique confirmed that the raw materials could be synthesized for wollastonite, while the XRD and SEM techni
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33

de Risi, F. R., and J. W. M. Noordermeer. "Effect of Methacrylate Co-Agents on Peroxide Cured PP/EPDM Thermoplastic Vulcanizates." Rubber Chemistry and Technology 80, no. 1 (2007): 83–99. http://dx.doi.org/10.5254/1.3548170.

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Abstract Thermoplastic vulcanizates (TPVs) have gained large technical and economic importance. TPVs are characterized by a chemically crosslinked rubber phase, embedded in a thermoplastic matrix, produced by dynamic vulcanization during mixing with the thermoplastic in its molten state. Methacrylate species are investigated as co-agents for peroxide vulcanization of polypropylene/ethylene-propylene-diene-rubber (PP/EPDM) TPVs, whereby the weight fraction of the EPDM is varied from 30, 50 to 70%. Ethylene glycol dimethacrylate (EDMA), trimethylol propane trimethacrylate (TMPTMA, often referred
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34

Egorov, Evgeny N., Nikolay I. Kol'tsov, and Nikolay F. Ushmarin. "TECHNOLOGICAL ADDITIVES FOR OIL AND PETROL RESISTANCE RUBBERS BASED ON BUTADIENE-NITRILE CAOUTCHOUCS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 6 (2021): 41–46. http://dx.doi.org/10.6060/ivkkt.20216406.6169.

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The article investigated the influence of various technological additives (zincolet BB 222, lubstab-01 and MA-L22) on the technological properties of the rubber mixture, physical, mechanical and operational characteristics of rubber based on nitrile butadiene caoutchouc BNKS-40AMN. Basic rubber mixture studied included caoutchouc, BC-FF percadox, zinc monomethacrylate, maleide F, triallyl isocyanurate, acetonanil N, MGF-9 and THM-3 oligoester acrylates, carbon black P 514 and other ingredients. The rubber mixture was prepared on laboratory rolls LB 320 160/160 in two stages. At the first stage
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35

Kumar, Vineet, Anuj Kumar, Minseok Song, Dong-Joo Lee, Sung-Soo Han, and Sang-Shin Park. "Properties of Silicone Rubber-Based Composites Reinforced with Few-Layer Graphene and Iron Oxide or Titanium Dioxide." Polymers 13, no. 10 (2021): 1550. http://dx.doi.org/10.3390/polym13101550.

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The increasing demand for polymer composites with novel or improved properties requires novel fillers. To meet the challenges posed, nanofillers such as graphene, carbon nanotubes, and titanium dioxide (TiO2) have been used. In the present work, few-layer graphene (FLG) and iron oxide (Fe3O4) or TiO2 were used as fillers in a room-temperature-vulcanized (RTV) silicone rubber (SR) matrix. Composites were prepared by mixing RTV-SR with nanofillers and then kept for vulcanization at room temperature for 24 h. The RTV-SR composites obtained were characterized with respect to their mechanical, actu
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36

Wang, Yunfei. "Preparation and Study of EPDM Composites with High Volume Resistance Retention Rate." Scientific Journal of Technology 6, no. 3 (2024): 113–22. http://dx.doi.org/10.54691/ze4kqv22.

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LDPE/ EPDM composites were prepared by mechanical blending method. The effects of two compatibilizers MA/Zn and CPE on the vulcanization properties, mechanical properties, aging resistance and electrical properties of the composites were studied. The results showed that the addition of two kinds of compatibility significantly improved the compatibility of LDPE and EPDM. Compared with CPE, the addition of MA/Zn can improve the properties of the composites better. The mechanical and electrical properties of the composite were improved by the addition of MA/Zn compatibilizer. The volume resistivi
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37

Xu, Huihui, Yanhong Gao, Zihou Liu та Yiling Bei. "Theoretical Investigation of the Hydrolytic Mechanism of α-Functionalized Alkoxysilanes as Effective Crosslinkers and the Difficulty of Deep Vulcanization in RTV Silicone Rubber". Materials 11, № 9 (2018): 1526. http://dx.doi.org/10.3390/ma11091526.

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The reactions between α-, γ-ethylenediaminemethyl trimethyl-ketoxime silane (α-, γ-EAMOS) and H2O were investigated on the geometries of stationary points, the reaction pathway (IRC), thermodynamic and kinetic analysis by density functional theory (DFT) at the B3LYP/6-311G (d, p) level. Interestingly, the results showed that the hydrolysis activity of α-EAMOS is higher than that of γ-EAMOS, due to the influence of an amino substituent in position α-C on silicon. α-EAMOS can be used as a superior crosslinker for room temperature vulcanized (RTV) silicone rubber to achieve rapid crosslinking wit
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38

Pazur, Richard J., and T. Mengistu. "INFLUENCE OF THE CROSSLINK STRUCTURE ON THE ACTIVATION ENERGY CALCULATED UNDER THERMO-OXIDATIVE CONDITIONS." Rubber Chemistry and Technology 91, no. 1 (2018): 205–24. http://dx.doi.org/10.5254/rct-17-83714.

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ABSTRACT A series of six carbon black reinforced brominated poly(isobutylene-co-isoprene) (BIIR) compounds has been developed varying only in cure system type: sulfur, sulfur donor, zinc oxide, peroxide, phenolic resin, and ionic. Compounds were aged from room temperature up to 115 °C, and hardness, mechanical properties, and network chain density were measured. Non-Arrhenius behavior was observed due to data curvature from 70 to 85 °C. The oxidation process was adequately described by assigning low (23–85 °C) and high (85–115 °C) temperature regimes. Heterogeneous aging due to diffusion limit
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39

Fikri, Miftahul, Iwa Garniwa Mulyana K, Christiono Christiono, and Andi Amar Thahara. "Optimization of Mechanical Performance Polymer Insulators SiR Using CFA Waste as Filler." Jurnal IPTEK 29, no. 1 (2025): 1–10. https://doi.org/10.31284/j.iptek.2025.v29i1.4923.

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This study investigates the use of coal fly ash as a filler in Room Temperature Vulcanization (RTV) silicone rubber to enhance its mechanical properties. Fly ash, which contains silica, has the potential to improve the strength of the polymer. The research aims to optimize the composition of fly ash in RTV silicone rubber composites using the quadratic regression method, focusing on tensile strength and elongation performance. Tests were conducted according to ASTM D 412 standards for tensile strength and elongation. The results showed that the optimal fly ash composition for tensile strength
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40

Tepsila, Sujirat, and Amnart Suksri. "A Study on Modification Properties of Silicone Rubber Using Organic Filler from Golden Apple Snail Shell." Key Engineering Materials 718 (November 2016): 40–44. http://dx.doi.org/10.4028/www.scientific.net/kem.718.40.

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Silicone rubber room temperature vulcanization (RTV) is widely used as an insulator. This paper aims to improve the electrical and mechanical properties of RTV with organic filler from golden apple snail shells. The processed golden apple snail shells have the particle size of 75 μm. Specimen were made from silicone rubber with an addition of organic filler and inorganic filler for tested under ASTM D638-2a standard. The filler ratio was varying from 0 to 50% by weight with incremental of 5%. Experimental results showed that, there were good agreement in threshold of electrical and mechanical
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41

Al-Kadi, Faten K., Jwan F. Abdulkareem, and Bruska A. Azhdar. "Hybrid Chitosan–TiO2 Nanocomposite Impregnated in Type A-2186 Maxillofacial Silicone Subjected to Different Accelerated Aging Conditions: An Evaluation of Color Stability." Nanomaterials 13, no. 16 (2023): 2379. http://dx.doi.org/10.3390/nano13162379.

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This study explores the impact of the incorporation of a chitosan–TiO2 nanocomposite on the color stability of pigmented room-temperature vulcanization maxillofacial silicone under various accelerated aging conditions. Five hundred disk-shaped specimens were formed with type A-2186 silicone elastomer, and they were distributed into groups based on pigment types and nanoparticle treatments. The color difference (ΔE) was assessed using a colorimeter in the CIELAB color system before and after exposure to aging conditions, including UV-accelerated aging and outdoor weathering. ANOVA, Dennett’s T3
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42

Roy, Juganta K., K. M. Zakir Hossain, A. Rahman, A. M. Sarwaruddin Chowdhury, and N. C. Dafader. "Effect of Pulverized Silica and Radiation Dose on the Mechanical Properties of Radiation (Gamma-Radiation) Vulcanized Natural Rubber Latex Film." DIU Journal of Science & Technology 8, no. 1 (2024): 33–36. https://doi.org/10.5281/zenodo.13743968.

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A study of the effect of pulverized silica on the properties of radiation vulcanized natural rubber latex (RVNRL) film has been done. Radiation vulcanization of natural rubber latex was done by using Co-60 gamma radiator at room temperature using n-butyl acrylate (n-BA) as sensitizer. The additives (pulverized silica and n-BA) were blended with NR latex just before irradiation. It was found that both silica concentrations and radiation doses were important for the improvement of the tensile and swelling properties of natural rubber latex film. The tensile strength, tear strength and gel conten
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43

Abbasi, Amin, Wan Zaireen Nisa Yahya, Mohamed Mahmoud Nasef, Muhammad Moniruzzaman, and Ali Shaan Manzoor Ghumman. "Copolymerization of palm oil with sulfur using inverse vulcanization to boost the palm oil industry." Polymers and Polymer Composites 29, no. 9_suppl (2021): S1446—S1456. http://dx.doi.org/10.1177/09673911211054269.

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Nowadays, most of the world’s palm oil is being produced in Malaysia and Indonesia; however, the demand for this vegetable oil as an edible oil is declining in many countries since consuming palm oil in excess can result in serious health problems. Consequently, finding new applications such as the production of bio-based polymers to make use of this cheap and abundant vegetable oil seems necessary. Herein, we report the copolymerization of palm oil with sulfur with different feed ratios via inverse vulcanization. The copolymers are then characterized using Fourier-transform infrared spectrosc
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44

dos Santos, Danielle Ferreira, and Renata Antoun Simão. "Study of the Impact of Ionic Liquid on the Reactive Compatibilization of the NBR/EVASH/PP Vulcanized Thermoplatic Elastomer Using the Click Chemistry Technique by Thiol-Ene." Applied Mechanics and Materials 909 (September 28, 2022): 1–9. http://dx.doi.org/10.4028/p-109457.

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The dynamic vulcanization technique is a process of crosslinking an elastomer during mixing with a molten state thermoplastic, resulting in a new class of thermoplastic elastomers (TPEs): vulcanized thermoplastics (TPVs). This technique obtains materials with rubber behavior at room temperature, but processed as plastics at high temperatures, especially by extrusion and injection. The advantage of using the process of obtaining thermoplastic elastomers is that traditional elastomers require several steps in their processing. From an environmental point of view, vulcanized thermoplastics are in
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45

Yang, K., and C. L. Gu. "Research on novel shape memory alloy multi-fingered humanoid hand." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 221, no. 9 (2007): 1131–40. http://dx.doi.org/10.1243/09544062jmes527.

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Two new type actuators named planar bending embedded shape memory alloy actuator (ESMAA) and spacial bending ESMAA were presented. Using shape memory effect of SMA wires and elasticity of room temperature vulcanization silicone rubber, the ESMAAs could output force and bend displacement steadily. Furthermore, a novel three-fingered humanoid robot hand consisting of six ESMAAs was developed first. The structural parameters of the actuators, such as rod's radius, wire's radius, wire's recoverable curvature, and offset distance were optimized by combining analytical model with experimental result
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46

Sandesh, Bhaktha, Hegde Sriharsha, U. Rao Sathish, and Gandhi Nikhil. "Investigation of tensile properties of RTV Silicone based Isotropic Magnetorheological Elastomers." MATEC Web of Conferences 144 (2018): 02015. http://dx.doi.org/10.1051/matecconf/201814402015.

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Magnetorheological elastomer (MRE) consists of an elastomer matrix and a Ferro-magnetic ingredient. The mechanical properties of MR elastomers can be reversibly controlled by applying a magnetic field of suitable intensity. The current work focusses on the enhancement of tensile property of RTV (Room Temperature Vulcanization) silicone based elastomer. The influence of Carbonyl iron powder (CIP) content and magnetic field were experimentally investigated. Addition of CIP increases the tensile modulus but it reduces the percentage elongation and tensile strength making it brittle. Under the inf
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47

Zhou, Xinxin, Lesi Cai, Weiwei Lei, et al. "Preparation and intermolecular interaction of bio-based elastomer/hindered phenol hybrid with tunable damping properties." Pure and Applied Chemistry 87, no. 8 (2015): 767–77. http://dx.doi.org/10.1515/pac-2014-1207.

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AbstractIn this research, crosslinked hybrids of a newly invented bio-based elastomer poly(di-isoamyl itaconate-co-isoprene) (PDII) and 3,9-bis[1,1-dimethyl-2{β-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy}ethyl]-2,4,8,10-tetraoxaspiro[5,5]-undecane (AO-80) were designed and prepared by the mechanical kneading of the PDII/AO-80 hybrids at a temperature higher than the melting point of AO-80, followed by the crosslinking of PDII during the subsequent hot-pressing/vulcanization process. The microstructure, morphology, and mechanical properties of the hybrids were systematically investigat
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48

Liang, Weijie, Xin Ge, Jianfang Ge, et al. "Reduced Graphene Oxide Embedded with MQ Silicone Resin Nano-Aggregates for Silicone Rubber Composites with Enhanced Thermal Conductivity and Mechanical Performance." Polymers 10, no. 11 (2018): 1254. http://dx.doi.org/10.3390/polym10111254.

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With developments of the electronics industry, more components are being included in electronic devices, which has led to challenges in thermal management. Using reduced graphene oxide embedded with MQ silicone resin (RGO/MQ) nano-aggregates as the composite filler and silicone rubber (SR) as the matrix, a simple approach is designed to prepare RGO/MQ/SR composites. Reduced graphene oxide (RGO) was first used as a substrate for the growth of MQ silicone resin by hybridization, forming sandwich-like micro structured RGO/MQ nano-aggregates successfully. Then, RGO/MQ was integrated into α,ω-dihyd
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49

Du, Dajiang, Teruo Asaoka, Makoto Shinohara, Tomonori Kageyama, Takashi Ushida, and Katsuko Sakai Furukawa. "Microstereolithography-Based Fabrication of Anatomically Shaped Beta-Tricalcium Phosphate Scaffolds for Bone Tissue Engineering." BioMed Research International 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/859456.

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Porous ceramic scaffolds with shapes matching the bone defects may result in more efficient grafting and healing than the ones with simple geometries. Using computer-assisted microstereolithography (MSTL), we have developed a novel gelcasting indirect MSTL technology and successfully fabricated two scaffolds according to CT images of rabbit femur. Negative resin molds with outer 3D dimensions conforming to the femur and an internal structure consisting of stacked meshes with uniform interconnecting struts, 0.5 mm in diameter, were fabricated by MSTL. The second mold type was designed for corti
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50

Bahruddin, Zuchra Helwani, Lili Saktiani, Yanuar, and Rahmat Satoto. "Study on Utilization of Palm Oil Fly Ash as a Filler for Thermoset Natural Rubber." Advanced Materials Research 844 (November 2013): 280–84. http://dx.doi.org/10.4028/www.scientific.net/amr.844.280.

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Palm oil fly ash (POFA) as solid waste produced from crude palm oil industries consist of quite high of silica (more than 50% w/w). This study aimed to compare the properties and morphology of thermoset natural rubber (TNR) with POFA, silica, carbon black (CB), and mixture of POFA-CB fillers. The filler content used is 30 phr (per hundred rubbers). The process of making the compound was conducted by using a roll mill at room temperature and a maximum roll rotational speed of 20 rpm. Zinc oxide 5 phr, stearic acid 2 phr, mercaptodibenzothiazyldisulfide (MBTS) 0.6 phr, and Sulfur of 3 phr were u
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