Preparation of Thermoplastic Elastomer Containing Poly(Vinyl Chloride) with NBR
Chung HS, Ahn JJ, Lee CS, Shin YJ
NBR과 폴리염화비닐 열가소성 고무의 제조에 관한 연구
정희실, 안재준, 이창성, 신영조
Abstract
Poly(vinyl chloride) (PVC) was blended to acrylonitrile-butadiene rubber(NBR) in order to improve the processibility and ozone-resistance. As the component of PVC was increased, elongation at break was decreased while tensile strength was increased. At 10 weight percent of PVC, NBR/PVC blend showed the best ozone-resistance estimated by measuring elongation at break at tensile strength of the blends after appropriate physical treatments. NBR/PVC blend vulcanized by metal oxide showed almost the same mechanists properties as conventional NBR/PVC blend vulcanized by sulfur.
가공성과 내오존성을 향상시키기 위하여 acrylonitrile-butadiene rubber(NBR)에 poly(vinyl chloride)를 blend하였다. PVC의 함량이 증가할수록 신장율은 감소하였고, 인장강도는 증가하였다. 인장강도와 신장율로 측정한 내오존성은 PVC의 함량이 l0wt%일 때 가장 좋은 값을 나타내었다. 일반적으로 고무의 가교제로 사용되는 유황을 대신하여 금속 산화물을 첨가하여 blend의 물성을 조사한 결과, 금속 산화물로 가교된 NBR/PVC blend는 유황으로 가교된 NBR/PVC와 유사한 기계적 물성을 나타내었다.
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Polymer(Korea) 폴리머
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