A Study on Thermoplastic Elastomer Blend Using Waste Rubber Powder(I): Screw Configurations, Morphologies and Mechanical Properties

폐고무 분말을 이용한 TPE 블렌드에 관한 연구(I) : 스크류 조합, 모폴로지, 기계적 물성

  • Lee, Sung-Hyo (Dept. of Polymer Sci. & Eng., Gyeongsang National University, Research Institute of Industrial Technology) ;
  • Hwang, Sung-Hyuk (Dept. of Polymer Sci. & Eng., Gyeongsang National University, Research Institute of Industrial Technology) ;
  • Kim, Jin-Kuk (Dept. of Polymer Sci. & Eng., Gyeongsang National University, Research Institute of Industrial Technology)
  • 이성효 (경상대학교 고분자공학과, 생산기술연구소) ;
  • 황성혁 (경상대학교 고분자공학과, 생산기술연구소) ;
  • 김진국 (경상대학교 고분자공학과, 생산기술연구소)
  • Published : 2001.06.30

Abstract

For solving the environmental problem of the waste EPDM and for new TPE blend materials, we developed a new kind of TPE material using a co-rotating twin screw extruder. To improve the mechanical properties of TPE material such as tensile strength, elongation at break, and modulus of the blend, PP and waste EPDM powder were blended with different screw configurations. The mechanical properties of the blends and morphology of the TPE were investigated. As the number of kneading disc and left-handed screw element increased, dynamic vulcanization of the material was increased because the shear stress and residence time of blends increased.