Catalysis carbonization intumescent flame-retardant system and application thereof

Abstract

The present invention relates to a catalytic carbonization expansion flame retardant system and its application. The system includes: an acid source, a carbon source, a gas source and a carbon forming catalyst; wherein, the mass percentage of the acid source in the flame retardant system is 15-30%; The mass ratio of acid source to gas source is 2-10:1; the mass ratio of acid source to carbon source is 2-10:1; the mass ratio of acid source to carbon-forming catalyst is 10-20:1. The catalytic carbonization expansion flame retardant system of the present invention is applied to the flame retardant post-finishing of polyester fabrics. The intumescent flame retardant system of the present invention does not contain halogen, and conforms to the development trend of less smoke and low toxicity of flame retardants, and is an environmentally friendly flame retardant system; the finished product has better flame retardant performance, and the finished polyester fabric has good flame retardant Anti-dripping.

Description

technical field [0001] The invention belongs to the field of functional finishing of textiles, in particular to a catalytic carbonization expansion flame retardant system and its application. Background technique [0002] Polyester is the most widely used synthetic fiber, widely used in national defense, industrial fabrics and all aspects of people's lives. Polyester is a flammable fiber, which cannot meet the requirements for flame retardant performance in some fields, so it needs to be treated with flame retardant. Most of the established methods of endowing polyester with flame retardancy achieve the flame retardancy effect by increasing the molten droplets while making the molten droplets drip quickly and self-extinguish, but the dripping of high-temperature melts is likely to cause secondary damage. It is a better way to endow polyester with flame retardancy if it can form a compact charcoal layer on the surface of the fiber when it is burned and reduce the dripping of...

AI Technical Summary

Problems solved by technology

Polyester is a flammable fiber, which cannot meet the requirements of flame retardant performance in some fields, so it needs to be treated with flame retardant

Most of the established methods of endowing polyester with flame retardancy achieve the flame retardancy effect by increasing the molten droplets while making the molten droplets drip quickly and self-extinguish, but the dripping of high-temperature molten matter is likely to cause secondary damage

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