Halogen-free expansion flame retardant and flame-retardant polypropylene composite material

Abstract

The invention discloses a halogen-free expansive flame retardant and a composite material of flame retardant polypropylene, relating to a composite material of expansive flame retardant and polypropylene, which settles the problem that the prior halogen-free expansive flame retardant is unsuitable for commercial production due to low flame retardant efficiency, large addition quantity, bad thermostability and reduced polymer performance after added, the polypropylene is unsuitable for commercial production, and the application range in the composite material is greatly reduced. The halogen-free expansive flame retardant comprises triazine carbon-formation foaming agent, ammonium polyphosphate and halogen-free flame retardant synergistic agent. The composite material of flame retardant polypropylene comprises thermoplastic resin and halogen-free expansive flame retardant, and processing aid and / or anti-dripping agent as well. The composite material of flame retardant polypropylene has the advantages of high flame retardant efficiency, high oxygen index, non-halogen, low smoke, low mammalian toxicity and excellent processing properties since the halogen-free expansive flame retardant has the advantages of high flame retardant efficiency, less addition quantity, less influence to the physical mechanical property of the composite material, suitability for commercial production and wide application range.

Description

technical field [0001] The invention relates to an expansion flame retardant and polypropylene composite material. Background technique [0002] Polypropylene (PP) is a thermoplastic synthetic resin with excellent performance. Because of its convenient processing, mechanical properties, electrical insulation, chemical resistance, non-toxicity, low density, and light weight, it is widely used in industrial construction, automobile industry, and household appliances. , electronics, packaging and building materials, furniture and other aspects have a wide range of applications, and its development speed has been ranking first among all kinds of general-purpose plastics. However, the oxygen index of polypropylene is generally 17.4, and it can continue to ignite spontaneously after leaving the fire, which is a flammable material. With the continuous development of polypropylene application fields and the continuous increase in the number of applications, the resulting fire hazar...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing halogen-free intumescent flame retardants have relatively low flame retardant efficiency, large amount of addition, poor thermal stability, and reduced performance of high polymers after addition, so that industrial production cannot be achieved, and polypropylene cannot be industrially produced. The application range of composite materials is greatly reduced; and a halogen-free intumescent flame retardant and flame-retardant polypropylene composite material are provided