JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 35 Issue 6
December 2020
Article Contents
CHEN Rongyuan, YANG Xiaozhuang, TAO Linna, et al. Structure and property of ethylene-octene copolymer toughening modified recycled polypropylene[J]. Journal of Light Industry, 2020, 35(6): 60-67. doi: 10.12187/2020.06.008
Citation: CHEN Rongyuan, YANG Xiaozhuang, TAO Linna, et al. Structure and property of ethylene-octene copolymer toughening modified recycled polypropylene[J]. Journal of Light Industry, 2020, 35(6): 60-67. doi: 10.12187/2020.06.008 shu

Structure and property of ethylene-octene copolymer toughening modified recycled polypropylene

  • Received Date: 2020-04-29
  • The recycled polypropylene (RPP) and ethylene-octene copolymer (POE) were used as the main raw materials.The RPP/POE blends were prepared by melt blending method.The mechanical properties and thermal properties of RPP/POE blends as well as the effect of compatibilizers on the mechanical properties were studied.The results showed that with the increase of POE addition,the tensile strength and impact strength of RPP/POE blends increased at first and then decreased,elongation at break tended to increase first and then stabilize,but the flexural strength decreased gradually.When the addition of POE was 5%,the tensile strength of the blend reached its maximum 16.7 MPa.When the addition of POE exceeded 20%,the elongation at break reached 400%,the impact strength increased to 5 times of that of RPP,and the flexural decreased to 50 % that of RPP.Furthermore,the Vicat softening temperature of the blends decreased with an increase of the POE addition,and the introduction of POE had a little influence on the crystal structure of RPP,but had a baffling effect on the crystallization of RPP.Moreover,compared with PP-g-MAH,compatibilizer POE-g-MAH was more suitable for improving the strength and toughness of RPP/POE blends.
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