• 专利标题:   Reinforcing ethylene vinyl acetate copolymer, comprises dissolving ethylene-vinyl acetate copolymer in tetrahydrofuran solution at normal temperature, and dispersing graphene oxide in the tetrahydrofuran solution.
  • 专利号:   CN102532673-A, CN102532673-B
  • 发明人:   XING Y, ZHANG Y
  • 专利权人:   UNIV SHANGHAI JIAOTONG
  • 国际专利分类:   C08J003/24, C08K003/04, C08K005/14, C08K009/00, C08L023/08, C08L031/04
  • 专利详细信息:   CN102532673-A 04 Jul 2012 C08L-023/08 201312 Pages: 5 Chinese
  • 申请详细信息:   CN102532673-A CN10419323 14 Dec 2011
  • 优先权号:   CN10419323

▎ 摘  要

NOVELTY - The method comprises dissolving 100 parts by weight (pbw) of ethylene-vinyl acetate copolymer in tetrahydrofuran solution according to a mass ratio of 1:9 at normal temperature, dispersing 0.5-1 pbw of graphene oxide in the tetrahydrofuran solution according to a mass ratio of 1:900, adding ethylene-vinyl acetate copolymer solution into the tetrahydrofuran solution, mixing the solution at a pressure of 15 MPa to obtain ethylene vinyl acetate copolymer and graphene oxide composite material, and adding 1.5 pbw of vulcanizing agent such as dicumyl peroxide to the composite material. USE - The method is useful for reinforcing ethylene vinyl acetate copolymer, which is useful in an electric wire and cable industry. ADVANTAGE - The method is capable of simply reinforcing ethylene vinyl acetate copolymer thus improving the mechanical property of the electric cable. DETAILED DESCRIPTION - The method comprises dissolving 100 parts by weight (pbw) of ethylene-vinyl acetate copolymer in tetrahydrofuran solution according to a mass ratio of 1:9 at normal temperature, dispersing 0.5-1 pbw of graphene oxide in the tetrahydrofuran solution according to a mass ratio of 1:900, adding ethylene-vinyl acetate copolymer solution into the tetrahydrofuran solution, mixing the solution at a pressure of 15 MPa to obtain ethylene vinyl acetate copolymer and graphene oxide composite material, and adding 1.5 pbw of vulcanizing agent such as dicumyl peroxide to the composite material at a temperature of 170 degrees C. The ethylene-vinyl acetate copolymer has vinyl acetate content of 20-80 wt.% and Mooney viscosity of 20-30.