• 专利标题:   Electromagnetic shielding paint comprises polymer resin, flake conductive filler, fibrous conductive filler, cellulose ether, silane coupling agent and diluent.
  • 专利号:   CN112662268-A
  • 发明人:   WANG X, WANG Y, HAO M, ZHANG Q, LIU X, HAN G
  • 专利权人:   CRRC TANGSHAN LOCOMOTIVE CO LTD
  • 国际专利分类:   C09D133/04, C09D163/00, C09D175/04, C09D005/24, C09D007/65
  • 专利详细信息:   CN112662268-A 16 Apr 2021 C09D-163/00 202142 Pages: 13 Chinese
  • 申请详细信息:   CN112662268-A CN10980153 15 Oct 2019
  • 优先权号:   CN10980153

▎ 摘  要

NOVELTY - Electromagnetic shielding paint comprises 20-70 pts. wt. polymer resin, 10-60 pts. wt. flake conductive filler, 1-10 pts. wt. fibrous conductive filler, 0.5-5 pts. wt. cellulose ether, 0.1-1 pts. wt. silane coupling agent and 15-50 pts. wt. diluent, where the particle size of the flake conductive filler is 0.1-250 mu m and length of the fibrous conductive filler is 0.1-1 mm. USE - Used as electromagnetic shielding paint. ADVANTAGE - The paint has sheet-shaped conductive filler and fibrous conductive filler form stable conductive network, has better electromagnetic shielding efficiency and wider shielding range, electromagnetic shielding 10KHz-1GHz in the range of the frequency range is higher than 30 dB. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing electromagnetic shielding paint, comprising (i) mixing the polymer resin with the diluent, adding the sheet-shaped conductive filler, fibrous conductive filler and silane coupling agent to perform mixing treatment, and (ii) adding the cellulose ether and stirring.