Environment-friendly, high-efficiency and flame-retardant polypropylene complex and preparation method thereof

Abstract

The invention relates to the technical field of polypropylene material improvement, in particular to an environment-friendly, high-efficiency and flame-retardant polypropylene complex and a preparation method thereof. The complex comprises raw materials in parts by weight as follows: 35-74 parts of polypropylene, 15-30 parts of a halogen-free flame retardant, 1-2 parts of an antioxidant, 0.5-2 parts of a coupling agent and 0-2 parts of other assistants, wherein the halogen-free flame retardant is prepared from modified ammonium polyphosphate, nano carbon spheres and hydroxyapatite by mixing; the nano carbon spheres are prepared from glucose; modified ammonium polyphosphate is prepared from ammonium polyphosphate which is coated with methylsilane and has polymerization degree higher than 1700. By adding the halogen-free flame retardant to the polypropylene complex, good mechanical properties are kept while the complex is endowed with good flame retardance, besides, environmental pollution and harm to human bodies caused by the traditional flame-retardant halogenated polypropylene material are avoided, the polypropylene complex is non-toxic and environmentally friendly and has important actual application value, and the use quantity of the flame retardant is reduced greatly.

Description

technical field [0001] The invention relates to the technical field of polypropylene material improvement, in particular to an environmentally friendly and highly efficient flame-retardant polypropylene compound and a preparation method thereof. Background technique [0002] Because polypropylene has the advantages of excellent physical properties, chemical resistance, easy molding and processing, light weight and low price, these characteristics make it widely used in the fields of home appliances and auto parts. However, polypropylene has disadvantages such as flammability and poor flame retardancy. In today's home appliance and automobile industries, especially the electric vehicle market, which has increasingly high safety requirements, good flame retardancy is undoubtedly a development of materials for home appliances and automobiles in the future. direction. [0003] Chinese patent CN201210262036.8 discloses a halogen-free flame-retardant high-gloss high-fluidity poly...

AI Technical Summary

Problems solved by technology

However, polypropylene has disadvantages such as flammability and poor flame retardancy. In today's home appliance and automobile industries, especially the electric vehicle market, which has increasingly high safety requirements, good flame retardancy is undoubtedly a development of materials for home appliances and automobiles in the future. direction

[0003] Chinese patent CN201210262036.8 discloses a halogen-free flame-retardant high-gloss high-fluidity polypropylene material, using polyphosphate amine, pentaerythritol, and melamine as a halogen-free intumescent flame retardant, acting as a carbon source, an acid source, and a gas source, respectively. , by adopting an appropriate proportion of materials, the flame retardant efficiency is greatly improved, but the amount of flame retardant added is still greater than 25%, which has a serious impact on the mechanical properties

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