• 文献标题:   Construction and Performance Evaluation of Functional Coating with Multi-Layered Structure on the Surface of Cashmere Fibers Based on Dispersed Graphene by Cationic Waterborne Polyurethane
  • 文献类型:   Article
  • 作  者:   QUAN H, CHEN J, KONG XF, WU JY, NI LJ
  • 作者关键词:   cashmere, cationic polyurethane, microcoating, graphene, antipilling, antistatic
  • 出版物名称:   JOURNAL OF NATURAL FIBERS
  • ISSN:   1544-0478 EI 1544-046X
  • 通讯作者地址:  
  • 被引频次:   0
  • DOI:   10.1080/15440478.2023.2181910
  • 出版年:   2023

▎ 摘  要

In order to revise the problem of inferior hand-feeling of cashmere textile anti-filling finished with "addition" or "subtraction-addition" technology and indicate the effects of graphene distributed state in the surface on antistatic properties of cashmere fibers, A couple of flexible hydrophilic cationic polyurethanes used as a dispersion medium for graphene purposefully are designed and prepared. In addition, the state of polymer coating and graphene on the fiber is effectively controlled by foam micro-coating technology. The admirable pilling resistance, static resistance, and hand-feeling of cashmere textile attributed to two-layer polyurethane membranes realized through "bottom coating (BC)" and "surface coating (SC)" are definite and reliable. The results show that the cashmere textile obtained 1.0% (o.m.f. on mass of fabric) weight gain rate (WGR) under the foam bottom coating process, correspondingly, obtained 3-4% (o.m.f.) weight gain rate (WGR) under traditional dipping process, the pilling resistance grade of cashmere textile is improved to Grade 4-5 from Grade 1-2. The semi-embed state of graphene in the "surface coating" resin film on cashmere surface results in the decrease of static voltage half-life from 180 s to about 2 s. Clearly, the foam microcoating technology scheme of "BC+ SC@graphene" has achieved good expected results.