• 专利标题:   Preparing fiber foam material for oil adsorption comprises e.g. cutting hydrophobic thermoplastic polymers into short fibers of certain length, mechanically stirring thermoplastic polymers and foaming agent, dispersing fibers and micron-sized particles, thermally bonding, cooling and forming.
  • 专利号:   CN114316341-A
  • 发明人:   CHEN S, YANG B, HAO M, LIU Y
  • 专利权人:   CHINA SCI GROUP BEST XIAMEN ENVIRONMENTA
  • 国际专利分类:   B01J020/26, B01J020/28, B01J020/30, C08J009/00, C08J009/08, C08J009/10, C08L027/16, C08L033/20, C08L067/02
  • 专利详细信息:   CN114316341-A 12 Apr 2022 C08J-009/10 202253 Chinese
  • 申请详细信息:   CN114316341-A CN11662319 31 Dec 2021
  • 优先权号:   CN11662319

▎ 摘  要

NOVELTY - Preparing fiber foam material for oil adsorption comprises (a) cutting hydrophobic thermoplastic polymers with a melting point difference of more than 20degreesC into short fibers of a certain length (higher melting point thermoplastic polymers are short fibers, lower melting point thermoplastic polymers can be either short fibers or micron-sized particles), (b) mechanically stirring thermoplastic polymers and foaming agent at room temperature in a suitable container, uniformly dispersing fibers and/or micron-sized particles, and trapping a large amount of air in the pores between the fibers to form a fiber foam precursor, (c) achieving rapid thermal bonding, the foaming agent decomposes gas and overflows from the resulting fibrous foam, leaving more pores, (d) cooling at room temperature, and forming a fibrous foam material with high porosity. USE - The preparing fiber foam material for oil adsorption. ADVANTAGE - The preparation process is simple, fast, low in cost, high in oil absorption rate, free of organic solvent, non-toxic and environmentally friendly, stable in structure and performance, and can be reused for many times after extrusion and regeneration.