• 专利标题:   Material that can be softened by electricity for preparing electric heating products and used in medical applications such as wound care and wound dressing, comprises polycaprolactone, carbon nanotubes, graphene, nanograde copper powder, nanograde iron powder and sodium edetate.
  • 专利号:   CN115554455-A
  • 发明人:   ZHANG L, ZHANG T, WAN C, JIA Y, LIU J, ZHANG J
  • 专利权人:   ZHONGKE LANDING TIANJIN MEDICAL SCI
  • 国际专利分类:   A61L015/08, A61L015/10, A61L015/12, A61L015/14, B22F001/054, B22F001/10
  • 专利详细信息:   CN115554455-A 03 Jan 2023 A61L-015/08 202323 Chinese
  • 申请详细信息:   CN115554455-A CN11273914 18 Oct 2022
  • 优先权号:   CN11273914

▎ 摘  要

NOVELTY - Material that can be softened by electricity comprises 60-90 pts. wt. polycaprolactone, 15-30 pts. wt. carbon nanotubes, 2-15 pts. wt. graphene, 2-10 pts. wt. nanograde copper powder, 0-5 pts. wt. nanograde iron powder and 2-10 pts. wt. sodium edetate. USE - The material that can be softened by electricity is used for temperature control and used for preparing electric heating products and medical auxiliary equipment (claimed). The material is used in medical applications such as wound care and wound dressing and for providing antibacterial effect. ADVANTAGE - The material has excellent heat conductivity and can be prepared in a cost-effective manner. The material is softened and hot-compressed at 24V, 12V, 5V, which is a safe voltage and requires minimum power and has excellent air permeability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the material that can be softened by electricity involving (i) cold grinding polycaprolactone under the condition of -80℃ to -70℃ until the fineness reaches below 80 mesh and drying for 3-4 hours to obtain polycaprolactone powder, (ii) adding polycaprolactone powder to the carbon nanotube, mixing uniformly and repeating four times for primary mixing to obtain mixed material (A), (iii) adding nanograde copper powder and nanograde iron powder to the mixed material (A), mixing uniformly, repeating four times for secondary mixing to obtain the mixed material (B) and (iv) adding graphene and sodium edetate to the mixed material (B), mixing uniformly and repeating four times to third mixing to obtain a finished product.