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A kind of phosphorus flame-retardant anti-drip type low-melting point polyester material and its preparation method and application

A low-melting polyester, drip-proof technology, used in the manufacture of fire-retardant and flame-retardant filaments, single-component polyester rayon, etc., can solve application limitations, no flame-retardant, developed as early as the 1970s. Since then, it has become active and has achieved the effects of mature preparation methods, easy control and industrial production, and good compatibility.

Active Publication Date: 2021-06-22
广州百思创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • A kind of phosphorus flame-retardant anti-drip type low-melting point polyester material and its preparation method and application
  • A kind of phosphorus flame-retardant anti-drip type low-melting point polyester material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Tris (2-hydroxyethyl) isocyanurate, terephthalic acid, propylene glycol, ethylene glycol antimony, triphenyl phosphate and Add ammonium polyphosphate into the reaction kettle in turn, heat at 80°C until the solid is completely dissolved, and then start stirring (stirring speed is 100r / min), transfer it to the esterification reaction kettle after stirring evenly, fill it with nitrogen for protection, and then heat it at 220°C 1. After reacting for 1 hour at a stirring speed of 200r / min, continue to esterify at normal pressure and 200r / min for 30min, stop the reaction when the esterification rate is 93%, and obtain the initial polymerization material.

[0046] (2) 60 parts by mass of initial polymerization materials are quickly introduced into the polymerization reactor while hot, and then 40 parts by mass of stabilizer, accelerator, 3-hydroxyphenylphosphorylpropionic acid and 10-(2,5-dihydroxybenzene) are added. base)-10-hydrogen-9-oxa-10-phosphaphenanthrene-10-oxide...

Embodiment 2

[0051] (1) Tris (2-hydroxyethyl) isocyanurate, terephthalic acid, propylene glycol, ethylene glycol antimony, triphenyl phosphate and Add ammonium polyphosphate into the reaction kettle in turn, heat until the solid is completely dissolved, start stirring (stirring speed is 125r / min), transfer it to the esterification reaction kettle after stirring evenly, fill it with nitrogen for protection, and then stir at 240°C After reacting for 1.5 hours at a rotational speed of 225r / min, the esterification was continued for 40min under normal pressure and 225r / min, and the reaction was stopped when the esterification rate was 93%, to obtain primary polymerized materials.

[0052] (2) 65 parts by mass of initial polymerization materials are quickly introduced into the polymerization reactor while hot, and then 35 parts by mass of stabilizer, accelerator, 3-hydroxyphenylphosphorylpropionic acid and 10-(2,5-dihydroxybenzene base)-10-hydrogen-9-oxa-10-phosphaphenanthrene-10-oxide according...

Embodiment 3

[0057] (1) Tris (2-hydroxyethyl) isocyanurate, terephthalic acid, propylene glycol, ethylene glycol antimony, triphenyl phosphate and Add ammonium polyphosphate into the reaction kettle one by one, heat until the solid is completely dissolved, start stirring (stirring speed is 150r / min), stir evenly, add to the kettle and fill it with nitrogen for protection, then at 260°C, stirring speed is 250r / min After reacting for 2 hours under normal pressure and 250 r / min, the esterification was continued for 45 minutes, and the reaction was stopped when the esterification rate was 90%, and the primary polymer material was obtained.

[0058] (2) 70 parts by mass of initial polymerization materials are quickly introduced into the polymerization reactor while hot, and then 30 parts by mass of stabilizer, accelerator, 3-hydroxyphenylphosphorylpropionic acid and 10-(2,5-dihydroxybenzene base)-10-hydrogen-9-oxa-10-phosphaphenanthrene-10-oxide according to the molar ratio of 1:1:36:72 to mix ...

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Abstract

The invention discloses a phosphorus flame-retardant and anti-drip type low-melting point polyester material as well as a preparation method and application thereof. Preparation method steps: (1) adding tris(2-hydroxyethyl)isocyanurate, terephthalic acid, propylene glycol, ethylene glycol antimony, triphenyl phosphate and ammonium polyphosphate into a reactor, heating and dissolving And after stirring evenly, heat the reaction, then carry out the esterification reaction under normal pressure to obtain the initial polymerization material; (2) add stabilizer, accelerator, functional monomer 1 and functional monomer 2 to the initial polymerization material, and react to obtain The high polymer melt is cooled, cast, and pelletized to obtain a phosphorus flame-retardant and anti-drip type low-melting point polyester material. The oxygen index of the flame-retardant polyester fiber made from the polyester material is 28-49%, and the vertical combustion grade is V-0. The preparation method of the invention is simple, and the prepared polyester fiber has excellent flame retardancy, and can be widely used in textile and non-woven fabric industries, and the prepared polyester can also be directly applied in 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/692D01F6/92D01F1/07
CPCC08G63/6926D01F1/07D01F6/92
Inventor 苏佳佳
Owner 广州百思创科技有限公司
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