• 专利标题:   Polyethylene winding film comprises polyethylene, methyl vinyl silicone rubber, linear low density polyethylene, graphene fiber, silicon dioxide, stabilizing agent, antioxidant, toughening agent and flame retardant.
  • 专利号:   CN113136062-A
  • 发明人:   ZHANG B
  • 专利权人:   TIANJIN BAOJIN RUNDA PACKAGING CO LTD
  • 国际专利分类:   C08J005/18, C08K013/04, C08K003/22, C08K003/36, C08K003/38, C08K005/103, C08K005/12, C08K005/523, C08K005/524, C08K007/06, C08L023/06, C08L023/08, C08L071/02, C08L083/07, C08L091/00, C08L091/06
  • 专利详细信息:   CN113136062-A 20 Jul 2021 C08L-023/06 202167 Pages: 7 Chinese
  • 申请详细信息:   CN113136062-A CN10369656 07 Apr 2021
  • 优先权号:   CN10369656

▎ 摘  要

NOVELTY - Polyethylene winding film comprises 55-75 pts. wt. polyethylene, 20-30 pts. wt. methyl vinyl silicone rubber, 10-30 pts. wt. linear low density polyethylene, 3-7 pts. wt. graphene fiber, 2-12 pts. wt. silicon dioxide, 0.3-1 pt. wt. stabilizing agent, 0.1-1 pt. wt. antioxidant, 0.5-0.8 pts. wt. toughening agent and 0.2-0.6 pts. wt. flame retardant. USE - Used as polyethylene winding film. ADVANTAGE - The film: has increased toughness, high tensile strength, excellent toughness, large elongation at break and excellent mechanical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the polyethylene winding film, comprising (i) preparing required raw materials polyethylene, methyl vinyl silicone rubber, linear low-density polyethylene, graphene fiber, silicon dioxide, stabilizing agent, antioxidant, toughening agent and flame retardant, (ii) crushing graphene fibers and sieving to obtain powdered graphene fibers, (iii) sequentially adding above-mentioned raw materials to the reaction kettle, uniformly mixing, and heating and reacting at 100-110 degrees C for 5-6 hours to obtain a mixture, (iv) using twin-screw extruder for high-temperature extrusion of the above mixture, and extruding in extruder at 500-600 revolutions per minute at 176-216 degrees C, and (v) casting raw material after extrusion into a film by a casting machine, and casting at 235-245 degrees C, cooling by the cooling roller, and winding through the winding machine to obtain the finished product.