Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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A Study on the Viscous Properties of Polyvinyl Acetate Emulsion Mixed with SBR, Polyurethane and Epoxy Latex

SBR, 폴리우레탄 및 에폭시 라텍스를 혼합한 폴리초산비닐 에멀젼 수지의 점성에 관한 연구

  • Choi, Sang-Goo (Dept. of Chemical Tech, Chonbuk Sanup University) ;
  • Suh, Won-Dong (Dept. of Chemical Tech, Chonbuk Sanup University) ;
  • Park, In-Suk (Technical Research Center of Chonbuk Province)
  • 최상구 (전북산업대학교 공업화학과) ;
  • 서원동 (전북산업대학교 공업화학과) ;
  • 박인숙 (전북공업기술원)
  • Published : 1998.05.30
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Abstract

SBR latex, polyurethane latex and epoxy latex were mixed with polyvinyl acetate emulsion in 0~15% (wt.%). For the mixtures, the viscous properties were examined. The viscosity was influenced by the dispersed phase and the chain structures of polymer, and decreased with the rising of temperatures. The viscosity was increased with mixing of epoxy latex, but decreased with addition of SBR latex or polyurethane latex. Thixotropic index was influenced on the size of micelle and hydrogen bond. The thixotropic index was increased with mixing of epoxy latex or polyurethane latex within 5%, but keep up equality over that. The thixotropic index was decreased with mixing of SBR latex within 5%, but keep up equality over that. The relative viscosity were influenced on the activity of molecule and the interference of dispersed phases, was increased with the rising of temperatures. The relative viscosity was decreased with mixing of epoxy latex, but increased with mixing of SBR latex or polyurethane latex.

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