• 专利标题:   Weather-resistant and flame-retardant polyethylene film comprises polyethylene resin, hyperbranched polyethylene functionalized with terminal hydroxy groups, graft modified high-density polyethylene, copolymer resin, filler, antioxidant, zinc stearate, ethylene bis stearamide and quinoline yellow.
  • 专利号:   CN115850842-A
  • 发明人:   SHI Y, HUANG Y
  • 专利权人:   YANGZHOU LIANFA PACKING PROD CO LTD
  • 国际专利分类:   C08J005/18, C08K003/26, C08K007/06, C08L023/06, C08L023/26, C08L043/04, C08L051/06
  • 专利详细信息:   CN115850842-A 28 Mar 2023 C08L-023/06 202334 Chinese
  • 申请详细信息:   CN115850842-A CN11675926 26 Dec 2022
  • 优先权号:   CN11675926

▎ 摘  要

NOVELTY - Weather-resistant and flame-retardant polyethylene film comprises 100 pts. wt. polyethylene resin, 10-15 pts. wt. hyperbranched polyethylene functionalized with terminal hydroxy groups, 15-25 pts. wt. graft modified high-density polyethylene, 8-10 pts. wt. copolymer resin, 15-25 pts. wt. filler, 1-2 pts. wt. antioxidant, 1-2 pts. wt. zinc stearate, 0.8-1.6 pts. wt. ethylene bis stearamide, and 2-4 pts. wt. quinoline yellow, where the graft modified high-density polyethylene is N-(4-cyano-3-(trifluoromethyl)phenyl)methacrylamide or 1-methyl-3-allyl imidazolium bromide co-grafted modified high-density polyethylene; and the copolymer resin is produced by copolymerization of vinyltrimethoxysilane, 2-3-(2H-benzotriazol-2-yl)-4-hydroxyphenylethyl methacrylate, and 3-(1,1-difluoro-2-propen-1-yl )-2(1H)-quinoxalinone. USE - Used as weather-resistant and flame-retardant polyethylene film. ADVANTAGE - The weather-resistant and flame-retardant polyethylene film: has excellent mechanical properties, and sufficient barrier effect to oxygen and water vapor. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing weather-resistant flame-retardant polyethylene film comprising mixing other components except quinoline yellow evenly, and introducing into a twin-screw extruder to extrude and granulate through the die and pelletizer to form pellets, blowing the pellets into a film by a blow molding machine, and then soaking the prepared film in 5-10% aqueous quinoline yellow solution at 50-60 ℃ for 10-20 hours, then taking it out and washing it with water for 3-6 times, and then drying it to constant weight at 85-95 ℃ to obtain final product.