A kind of zinc oxide porous nanotube synergistic anti-ultraviolet and halogen-free flame-retardant polypropylene composite material and its preparation method

Abstract

The invention discloses a zinc oxide porous nanotube synergized anti-ultraviolet halogen-free flame-retardant polypropylene composite material and a preparation method thereof. The polypropylene composite material consists of the following raw materials in parts by mass: polypropylene, P-N compound flame retardant, zinc oxide porous nanotubes, hyperbranched polymer, light stabilizer, antioxidant and lubricant. The invention also discloses the preparation method of the anti-ultraviolet halogen-free flame-retardant polypropylene composite material. According to the zinc oxide porous nanotube synergized anti-ultraviolet halogen-free flame-retardant polypropylene composite material and the preparation method thereof, surface treated zinc oxide porous nanotubes are used to assist the dispersionof the hyperbranched polymer, so that the compatibility and dispersibility of the hyperbranched polymer in a polypropylene matrix are improved, and better UV resistance and a better flame retardant synergistic effect are further exerted; the zinc oxide nanotubes of porous size scale are more prominent on carbon formation efficiency and drip-proofing effect, so that the prepared polypropylene composite material also overcomes the drawback that a traditional anti-dripping agent PTFE significantly reduces the fluidity of a material, thereby bringing a great convenience for the processing of thin-walled multi-mold cavity products.

Description

technical field [0001] The invention relates to an anti-ultraviolet halogen-free flame-retardant polypropylene composite material synergistic with zinc oxide porous nanotubes and a preparation method thereof. Background technique [0002] As a light weight, non-toxic, acid and alkali resistant, relatively cheap plastic variety, polypropylene is widely used in construction, transportation, agriculture and industry. However, the oxygen index of polypropylene is only 17.4%, which is a flammable material. [0003] The halogen-free intumescent flame retardant (P-N system) compounded with ammonium polyphosphate (APP) as the main raw material has become a research hotspot in the academic circle and has been widely recognized by the industry because it conforms to the development trend of halogen-free environmental protection. However, due to the certain hygroscopicity of the flame retardant itself, and the main material APP is an inorganic material, the compatibility with the non-...

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Problems solved by technology

[0006] The purpose of the present invention is to provide an anti-ultraviolet halogen-free flame-retardant polypropylene composite material with zinc oxide porous nanotube synergy and its preparation method, so as to overcome the shortcomings of traditional organic ultraviolet absorbers and hindered amine light stabilizers that are easy to migrate and precipitate

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