Halogen-free expanded flame-retardant polypropylene film
A polypropylene film, intumescent flame retardant technology, applied in the field of intumescent flame retardant polypropylene film, can solve the problems of unfriendly environment, low flame retardant efficiency, etc. Effect
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specific Embodiment approach 1
[0014] Specific embodiment 1: In this embodiment, the halogen-free intumescent flame-retardant polypropylene film consists of 68-77 parts by weight of polypropylene, 20-32 parts of halogen-free intumescent flame retardant, 0-0.08 parts of anti-dripping agent and processing aids 1 part; wherein the halogen-free intumescent flame retardant is composed of triazine-based char-forming agent-foaming agent, ammonium polyphosphate and ethylene-acrylate-maleic anhydride terpolymer intercalated organic montmorillonite masterbatch, of which The mass ratio of triazine carbon forming-foaming agent to ammonium polyphosphate is 1:2~5; The mass ratio of soil masterbatch is 1:0.5~1.5; ethylene-acrylate-maleic anhydride terpolymer and organic montmorillonite are intercalated in organic montmorillonite masterbatch The mass ratio of soil is 0.4-2.5:1; the processing aid is composed of antioxidant 1010, N,N-ethylene bisstearic acid amide and polypropylene wax in a weight ratio of 3:3:4.
[0015] ...
specific Embodiment approach 2
[0017] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the polypropylene is homopolypropylene or copolymerized polypropylene, and the molecular weight is 280,000-300,000. Other parameters are the same as in the first embodiment.
[0018] In this embodiment, the polypropylene is a polypropylene powder produced by Daqing Huake Company, and its MFR (melt flow rate) is 3.5 g / 10 min.
specific Embodiment approach 3
[0019] Embodiment 3: This embodiment is different from Embodiment 1 or Embodiment 2 in that the anti-dripping agent is polytetrafluoroethylene powder. Other parameters are the same as those in Embodiment 1 or Embodiment 2.
[0020] The anti-dripping agent in this embodiment is a commercially available product.
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