Phosphorus flame-retardant drip-proof low-melting-point polyester material as well as preparation method and application thereof

Abstract

The invention discloses a phosphorus flame-retardant drip-proof low-melting-point polyester material as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) adding tris(2-hydroxyethyl)isocyanurate, terephthalic acid, propylene glycol, ethylene glycol antimony, triphenyl phosphate and ammonium polyphosphate into a reactor, performing heating for dissolution, performing uniform stirring, performing a reaction under heating, and performing an esterification reaction under normal pressure to obtain a primary polymerization material; and (2) adding a stabilizer, an accelerant, a functional monomer 1 and a functional monomer 2 into the primary polymerization material, performing a reaction to obtain a polymer melt, performing cooling, performing casting, and performing pelletization to obtain the phosphorus flame-retardant drip-proof low-melting-point polyester material. According to the polyester material provided by the invention,the flame-retardant polyester fibers prepared from the polyester material has an oxygen index of 28-49% and a vertical burning grade of V-0; and the preparation method provided by the invention is simple, the polyester fibers prepared by the method have excellent flame retardance and can be widely used in textile and non-woven fabric industries, and the obtained polyester can be directly applied to industries such as building materials and coatings.

Description

technical field [0001] The invention belongs to the technical field of low-melting-point copolyester and its preparation method, and in particular relates to a phosphorus flame-retardant and anti-drip type low-melting-point polyester material and its preparation method and application. Background technique [0002] Among synthetic fibers, one of the three major synthetic polymer materials, polyester has become the most popular synthetic fiber in 1972 because of its advantages such as high modulus, high strength, high elasticity, shape retention and heat resistance. The largest and most versatile fiber variety. However, in recent years, the two main raw materials of polyester, terephthalic acid and ethylene glycol, have been affected by the price increase of crude oil, and the prices have continued to rise, which has increased the production costs of enterprises. Relatively backward, coupled with blocked exports, resulting in a sudden increase in domestic polyester supply an...

AI Technical Summary

Problems solved by technology

However, due to the inherent flammability and melt dripping of polyester, the application in some important fields, such as electronic devices, flame-retardant protective clothing and military uniforms, textiles in vehicles, and hotel decorative fabrics, has been limited. , especially in recent years, the sharp increase in losses caused by major fires caused by polymer materials has made people eager to use flame-retardant polyester materials with excellent performance and low melting point

Although the research and development of flame-retardant polyester fibers has been active since the 1970s, and various flame-retardant polyester fibers have come out continuously, but there is no relevant research report on flame retardancy in low-melting point polyester products.

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