• 专利标题:   Preparing modified thermoplastic polyurethane elastic material comprises diluting graphene oxide solution, pouring graphene oxide dispersion into waterborne polyurethane solution diluted solution, granulating with tungsten based polymer grain material after crushing, hot melting and hot pressing.
  • 专利号:   CN115572475-A
  • 发明人:   WEN S, ZHUANG L, WU J, LIU H, CHEN X, HUANG Y
  • 专利权人:   FUJIAN HUAFENG SPORTS SCI TECHNOLOGY
  • 国际专利分类:   C08K003/04, C08K009/04, C08L075/04
  • 专利详细信息:   CN115572475-A 06 Jan 2023 C08L-075/04 202315 Chinese
  • 申请详细信息:   CN115572475-A CN11398530 09 Nov 2022
  • 优先权号:   CN11398530

▎ 摘  要

NOVELTY - Preparing modified thermoplastic polyurethane elastic material comprises (i) diluting graphene oxide (GO) solution, filtering and high pressure homogenizing treatment in sequence to obtain GO dispersion, (ii) diluting waterborne polyurethane (WPU) solution to obtain WPU diluted solution, pouring the GO dispersion into WPU diluted solution, filtering and high pressure homogenizing treatment to obtain the GO/WPU dispersion, (iii) demulsifying the GO/WPU dispersion, washing, filtering and drying in sequence, adding GO reducing agent for crushing, mixing and granulating with tungsten based polymer (TPU) grain material after crushing to obtain GO/WPU/TPU masterbatch, and (iv) mixing the GO/WPU/TPU masterbatch, the GO reducing agent and TPU, hot melting and hot pressing. USE - The method is useful for preparing modified thermoplastic polyurethane elastic material. ADVANTAGE - The method improves the skid-proof performance of the TPU, and has good wear-resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for modified thermoplastic polyurethane elastic material prepared by above method.