Zinc oxide nanowire synergy based uvioresistant anti-dropping halogen-free flame retardant polypropylene composite and preparation method thereof

Abstract

The invention discloses a zinc oxide nanowire synergy based uvioresistant anti-dropping halogen-free flame retardant polypropylene composite and a preparation method of the zinc oxide nanowire synergybased uvioresistant anti-dropping halogen-free flame retardant polypropylene composite. The polypropylene composite comprises the following raw materials: polypropylene, a nitrogen and phosphorus compounded flame retardant, a zinc oxide nanowire, a hyperbranched polymer, a light stabilizer, antioxygen and a lubricant. Meanwhile, the invention also discloses the preparation method of the zinc oxide nanowire synergy based uvioresistant anti-dropping halogen-free flame retardant polypropylene composite. The zinc oxide nanowire having three effects of flame retardant synergy, anti-dropping and ultraviolet resistance is introduced, the hyperbranched polymer is used to assist in dispersing while the surface is treated, and the functions of the composite in the three effects are further strengthened. The obtained polypropylene composite not only effectively reduces the degree of easiness of migration and precipitation of the traditional uvioresistant additive, but also overcomes the defect of deterioration of the processing performance of the composite caused by the traditional anti-dropping agent.

Description

technical field [0001] The invention relates to an anti-ultraviolet, anti-dripping, halogen-free, flame-retardant polypropylene composite material based on the synergistic effect of zinc oxide nanowires 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...

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Problems solved by technology

[0007] The purpose of the present invention is to provide an anti-ultraviolet, anti-dripping, halogen-free flame-retardant polypropylene composite material based on zinc oxide nanowire synergy and its preparation method, so as to overcome the easy migration and precipitation of traditional organic ultraviolet absorbers and hindered amine light stabilizers lack of

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