• 专利标题:   Graphene/ethylene vinyl acetate super light foaming material includes polyethylene, silane coupling agent, stearic acid, zinc stearate, zinc oxide, color particle material, foaming agent, crosslinker, and graphene precursor.
  • 专利号:   CN108976585-A
  • 发明人:   DING A, WU J
  • 专利权人:   GRAPHENE MATERIAL TECHNOLOGY CO LTD
  • 国际专利分类:   C08L023/08, C08L023/06, C08L051/00, C08L033/26, C08L029/04, C08L071/02, C08K013/02, C08K003/04, C08K005/09, C08K005/098, C08K003/22, C08K005/14, C08J009/04
  • 专利详细信息:   CN108976585-A 11 Dec 2018 C08L-023/08 201916 Pages: 10 Chinese
  • 申请详细信息:   CN108976585-A CN10707889 02 Jul 2018
  • 优先权号:   CN10707889

▎ 摘  要

NOVELTY - Graphene/ethylene vinyl acetate (EVA) super light foaming material comprises 100-110 pts. wt. EVA, 30-50 pts. wt. polyethylene, 10-15 pts. wt. maleic anhydride grafted vinyl compound, 10-15 pts. wt. silane coupling agent, 0.5-1.5 pts. wt. stearic acid, 0.5-1.5 pts. wt. zinc stearate, 2-3 pts. wt. zinc oxide, 1-5 pts. wt. color particle material, 5-15 pts. wt. foaming agent, 0.5-3 pts. wt. crosslinker, and 1-5 pts. wt. graphene precursor. USE - Graphene/ethylene vinyl acetate super light foaming material. ADVANTAGE - The material has high strength, light weight and long service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the foaming material comprising: (A) preparing graphene precursor by adding 15-17 g water-soluble polymer, 5-7 g acid and 10-11 mL alcohol into 600-650 mL water, and stirring uniformly to obtain first mixed solution; adding 2.24-2.30 g graphene oxide to first mixed solution, uniformly stirring, and adjusting pH to 7-8 to obtain second mixture; drying second mixed solution to gel form to obtain 40-42 g gel material; and uniformly mixing gel material and rubber at mass ratio of 5-6:1, and thinning to 2-3 mm thickness to obtain graphene precursor; (B) mixing EVA, polyethylene, silane coupling agent, maleic anhydride grafted vinyl compound, stearic acid, zinc stearate, zinc oxide, color granules and graphene precursor, homogenizing, and mixing in internal mixer; (C) kneading and pressing into tablets with 2-3 mm thickness to obtain sheet material, and granulating to obtain first granulated material; and (D) masticating on open mill to obtain plasticized material, mixing foaming agent, crosslinking agent and plasticized material and granulating; and foaming and molding.