Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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A Study on Modification of NBR Rubber Roll (I) -NBR/PVC Blend Systems-

NBR계(系) 고무롤의 생성개질(物性改質)에 관(關)한 연구(硏究) (I) -NBR/PVC 혼합계(混合系) 고무-

  • Seo, Kwan-Ho (Department of Polymer Science, Kyungpook National University) ;
  • Ko, Young-Cheol (Department of Polymer Science, Kyungpook National University) ;
  • Ha, Hyun-Dal (Department of Polymer Science, Kyungpook National University) ;
  • Cho, Ur-Ryong (Kprea Kumho Petrochemical Co., Ltd.)
  • 서관호 (경북대학교 공과대학 고분자공학과) ;
  • 고영철 (경북대학교 공과대학 고분자공학과) ;
  • 하현달 (경북대학교 공과대학 고분자공학과) ;
  • 조을용 (금호석유화학 연구소 울산분소)
  • Published : 1995.08.31
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Abstract

To modify the NBR rubber roll which has poor abrasion and chemical resistance, NBR/PVC blends were prepared in various composition ratios. First of all, their miscibility and vulcanization characteristics were investigated. Their abrasion and chemical resistant properties and physical properties were also studied. DSC thermograms for NBR/PVC blends show only one Tg in the entire composition range, demonstrating a perfect miscibility. In the vulcanization characteristics tested by rheometer, maximum torque decreases as PVC contents increased. In the investigation of physical properties of NBR/PVC blends, hardness increases and elongation decreases along with the increasing contents of PVC. On the other hands, tensile strength increases with the increasing contents of PVC up to 11.1 wt. %, and then decreases with higher contents of PVC. While the abrasion resistance of NBR/PVC blends was similar to that of NBR itself, the chemical resistance of NBR/PVC blends was superior to that of NBR.

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