Low-smell flame retardant polypropylene material having needle flame property and preparation method of retardant polypropylene material

Abstract

The invention relates to a flame retardant material, and particularly relates to a low-smell flame retardant polypropylene material having a needle flame property and a preparation method of the retardant polypropylene material. The preparation method of the retardant polypropylene material comprises the following various substances by weight: 57.5-97.4 parts of polypropylene, 0.2-0.5 part of a coupling agent, 2-10 parts of a flame retardant, 0-30 parts of filler, 0.2-1 part of an antioxidant, and 0.2-1 part of a lubricant. The flame retardant polypropylene material can effectively meet the requirements on low smell and needle flame.

Description

technical field [0001] The invention relates to a flame-retardant material, in particular to a flame-retardant polypropylene material with low odor and needle flame performance and a preparation method thereof. Background technique [0002] Flame-retardant polypropylene is widely used in household appliances and automobile industries. With the improvement of living standards and the increasing awareness of environmental protection, the requirements for the odor and safety of flame-retardant materials are becoming more and more stringent. Specifically: materials are required to be processed and The smell must be as low as possible during use, especially in the automotive industry, which clearly puts forward strict requirements on the smell, and the smell must be lower than 3.5. Therefore, how to reduce the smell of flame-retardant materials has become the key to industry improvement. . [0003] Flame-retardant materials are more in contact with electricity during use. In pra...

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Problems solved by technology

[0004] At present, V2 flame-retardant polypropylene is the most widely used in the field of household appliances and automobiles. The flame-retardant system is mostly bromine-antimony and phosphorus-nitrogen-bromine. For the bromine-antimony system, the existence of free bromine cannot be avoided, and free bromine is the main source of odor. , In addition, the flame retardant polypropylene material of the bromine antimony system has a large proportion of flame retardants, heavy density, and serious precipitation, which cannot meet the odor requirements; the phosphorus nitrogen bromine system uses hypophosphite as one of the raw materials, and the simple Hypophosphite has poor thermal stability, and under high-temperature shear conditions, it is easy to produce phosphine gas and has a pungent taste, so it cannot meet the requirements for odor

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