Organo bifunctional silane effects on the vibration, thermal, and mechanical properties of a vinyl‐group‐containing silicone rubber/natural rubber/silica compound

Dang, Thi To Nga; Kim, Jin Kuk; Kim, Kwang-Jea

doi:10.1002/vnl.20240

Cited by 19 publications

(10 citation statements)

References 13 publications

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“…Silicone rubber is the one most widely used as a biocompatible rubber as well as in blending with other polymers . The applications of silicone rubber include houseware items (toys, computer keyboards, phone keypads, ear plugs, ear phones, and watches) that are likely to contact the human body.…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial performance and the cure and mechanical properties of peroxide‐cured silicone rubber compounds

Taptim

Sombatsompop

2013

Vinyl Additive Technology

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Nanosilver colloid, Ag‐based zeolite compound, and 2‐hydroxypropyl‐3‐piperazinylquinolinecarboxylic acid methacrylate (HPQCAM) were used as antimicrobial agents and/or mechanical property improvers in peroxide‐cured silicone rubber vulcanizates. The vulcanizates were prepared by using a two‐roll mill followed by a hydraulic press in order to vulcanize the rubber compounds, and their cure characteristics, mechanical properties, and antibacterial performance were assessed. The antimicrobial performance of the silicone rubber compounds was examined through plate‐count‐agar and drop‐plate‐agar methods, as well as the halo test. The results suggested that the addition of all of the antimicrobial agents slightly increased the cure time, except for the Ag‐based zeolite. The addition of all of the antimicrobial agents also affected the mechanical properties of the rubber vulcanizates. The Ag‐based zeolite gave the silicone rubber compound with the most improved mechanical properties, whereas HPQCAM was the most effective antimicrobial agent, as determined by the occurrence of the inhibition zone and 99% reductions of Staphylococcus aureus and Escherichia coli. The changes in silicone rubber surface with the addition of antibacterial agent were shown by progressive decreases in water contact angle. This result was observed only for the HPQCAM agent and was associated with diffusion and the releasing mechanism of the HPQCAM to kill the bacteria. The optical lightness of the silicone vulcanizates decreased with increasing nanosilver content but increased with increasing amounts of Ag‐based zeolite or HPQCAM. J. VINYL ADDIT. TECHNOL., 19:113–122, 2013. © 2013 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Antimicrobial performance and the cure and mechanical properties of peroxide‐cured silicone rubber compounds

Taptim

Sombatsompop

2013

Vinyl Additive Technology

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“…One more conclusion may be drawn for the NR/SR blends based on the appearance of a new peak, when the compatibilizer B or C was added. These peaks should belong to the interface layer , and it represented a partial miscibility between the NR and the SR . It was also found that the new peak of the blends with compatibilizer C (−93.00°C) was much lower than that of blends with compatibilizer B (−85.62°C).…”

Section: Resultsmentioning

confidence: 91%

“…Current studies on this field are very limited because of the large difference in solubility between NR and SR (δ NR = 8.15 cal 1/2 cm −3/2 ; δ SR = 7.30 cal 1/2 cm −3/2 ) . This large difference results in poor performance of the blending system, even leading to the separation of the two phases.…”

Section: Introductionmentioning

confidence: 99%

Effect of compatibilizers on the miscibility of natural rubber/silicone rubber blends

Zhang

et al. 2013

Polym Eng Sci

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In this study, the blending system of natural rubber (NR) and silicone rubber (SR) at 70/30 ratio was investigated. Two kinds of graft polymers, polysiloxane‐g‐octane with different grafted ratios (polymers A, B, and C) and polysiloxane‐g‐(3,7‐dimethyl‐6‐octylene) (polymer D), were designed and synthesized to serve as compatibilizers. Dynamic mechanical analysis and scanning electron microscopy analyses showed that the compatibilizers improved the compatibility between NR and SR, and resulted in improved mechanical properties. For example, the tensile strength of the blends with compatibilizer C was 11.7 MPa, whereas that of the blends without any compatibilizer was only 7.86 MPa. The larger the grafted ratios, the better the compatibilization effect of the graft polymer. The differences in compatibilization effects between non‐reactive (polysiloxane‐g‐octane) and reactive [polysiloxane‐g‐(3,7‐dimethyl‐6‐octylene)] compatibilizers can be attributed to their different chemical compositions. The crosslink density obtained from solid‐state nuclear magnetic resonance indicated that the reactive compatibilizer (polymer D) engaged in the crosslink reaction through the active vinyl at the side chains, which effectively inhibited the decreasing trend of the crosslink density caused by the addition of compatibilizers. POLYM. ENG. SCI., 54:355–363, 2014. © 2013 Society of Plastics Engineers

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“…Ceramic silicone rubber composites with a polymeric matrix are widely used in thermal protection systems for space vehicles and civilian electrical equipments, owing to its good ablation resistance, low cost, low density, and high electrical insulation properties. Silicone rubber–based ceramic composite is a heat insulation material for wire and cable insulation coating material .…”

Section: Introductionmentioning

confidence: 99%

Improving properties of ceramic silicone rubber composites using high vinyl silicone oil

Cao

Cui

Wang

et al. 2015

J of Applied Polymer Sci

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Reactive high vinyl silicone oil (HVSO) was selected to prepare the ceramic silicone rubber composites. The effects of HVSO on the mechanical properties and thermal stabilities of ceramic silicone rubber composites were investigated. The structures of the cross-linked network of silicone rubber with or without HVSO were studied. The intermolecular space of silicone rubber was enlarged, and the cross-linked point was concentrated by addition of HVSO, which was demonstrated by cross-linking densities, scanning electron microscope (SEM) images, and dynamic mechanical analysis (DMA). The cross-linked network model was formed with the slipping of the cross-linked points along with the silicone rubber chain. Mechanical properties of composites were enhanced by the formation of this cross-linked network. The tear strength, tensile strength, and elongation at break of the composites were increased by 18.5%, 13.2%, and 37.4% by the adding of 2 phr HVSO, respectively. V C 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41864.

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Organo bifunctional silane effects on the vibration, thermal, and mechanical properties of a vinyl‐group‐containing silicone rubber/natural rubber/silica compound

Cited by 19 publications

References 13 publications

Antimicrobial performance and the cure and mechanical properties of peroxide‐cured silicone rubber compounds

Antimicrobial performance and the cure and mechanical properties of peroxide‐cured silicone rubber compounds

Effect of compatibilizers on the miscibility of natural rubber/silicone rubber blends

Improving properties of ceramic silicone rubber composites using high vinyl silicone oil

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