Halogen-free flame retardant polypropylene material with low smoke release rate and preparation method thereof

Abstract

The invention relates to a halogen-free flame retardant polypropylene material with the low smoke release rate and belongs to the technical field of high molecular materials. The material is prepared from, by weight, 40-70% of polypropylene, 18-30% of halogen-free flame retardant, 0-30% of glass fiber, 3-15% of polyketone resin, 1-5% of nanometer vermiculite, 3-10% of crystalline hydrate, 0.2-0.6% of lubricating agent and 0.2-0.6% of antioxidant. The invention further provides a preparation method of the halogen-free flame retardant polypropylene material. The halogen-free flame retardant polypropylene material with the low smoke release rate has the advantages of being low in smoke release rate, smog release amount and CO release ratio and capable of being widely applied in various fields of communal facilities, decoration, electronic and electric components and the like with high requirements for inflaming retarding and smog release, and saving precious time for people escape.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant polypropylene material with low smoke release rate and a preparation method thereof. Background technique [0002] Polypropylene (PP) is a semi-crystalline thermoplastic. It has high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid and alkali corrosion. It is widely used in the fields of machinery, automobiles, household appliances, electronic appliances, instrumentation, textiles and construction in industry, and is a very important engineering material. However, polypropylene, the oxygen index of polypropylene is only 17.5%, is relatively easy to burn, and there are molten droplets dripping during the combustion process, these problems restrict the application of polypropylene to a large extent. [0003] Generally speaking, the hazards of plastic burning come from the heat radiation b...

AI Technical Summary

Problems solved by technology

Odor and smoke density of hydroxide flame retardant are small, but its flame retardant efficiency is low, and it needs to be added in large quantities, which leads to poor mechanical properties of flame retardant polypropylene materials

[0004] In the existing invention technology, only focus on the total amount of smoke (smoke density) released after the plastic is completely burned, and do not pay attention to the release of smoke during the entire combustion process of the material

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