Halogen-free and flame-retardant automotive interior part material and preparation method thereof

Abstract

The invention discloses a halogen-free and flame-retardant automotive interior part material and a preparation method thereof. The halogen-free and flame-retardant automotive interior part material comprises the following raw materials: polypropylene, maleic anhydride grafted polypropylene, flax fiber, coconut fiber, halogen-free and flame-retardant filler, a flame-retardant assistant, a dispersant and an antioxidant. The automotive interior part material is good in formability and high in processability, the formula is reasonable and environmentally friendly, adhesion and compatibility of thefiber and the halogen-free and flame-retardant filler with polypropylene can be enhanced by added maleic anhydride grafted polypropylene, meanwhile, double flame-retardant functions are realized by the halogen-free and flame-retardant filler and the flame-retardant assistant, and the flame-retardant effect and the safety of the material are more ideal.

Description

technical field [0001] The invention relates to a polymer composite material and a preparation method thereof, in particular to a halogen-free flame-retardant automotive interior trim material and a preparation method thereof. Background technique [0002] With the rapid development of polymer materials, the research on flame retardant technology of such materials is becoming more and more extensive and in-depth. Commonly used flame retardants can be mainly divided into inorganic metal hydroxides and halogen-containing flame retardants. Inorganic metal hydroxides will absorb a lot of heat when they decompose during the combustion process. At the same time, the oxides produced can coat the surface of the polymer to insulate air and heat to achieve a flame retardant effect. However, due to the low flame retardant efficiency, it is necessary to add A large amount can achieve a better flame retardant effect, and the polarity of such substances leads to poor compatibility with th...

AI Technical Summary

Problems solved by technology

Inorganic metal hydroxides decompose during the combustion process and absorb a lot of heat. At the same time, the oxides produced can coat the surface of the polymer to insulate air and heat to achieve flame retardant effect. However, due to the low flame retardant efficiency, it is necessary to add A large amount can achieve a better flame retardant effect, and the polarity of such substances leads to poor compatibility with the matrix, and uneven dispersion in the substrate will greatly reduce the mechanical properties of the material; halogen-containing flame retardant Agents produce hydrogen halides during their heating and combustion process, dilute the surrounding air, and trap hydroxyl radicals, suppressing flames

Halogen-based flame retardants have high-efficiency flame-retardant properties and have relatively little impact on the performance of the substrate. However, such flame retardants will release harmful gases during the combustion process and pollute the environment. They are gradually favored by halogen-free flame retardants. Therefore, there is a need for a flame-retardant effect that can compensate for the loss of mechanical properties of the material