Preparation method for moisture-absorbing and flame-retardant polyester fiber

A copolyester, flame retardant technology, applied in the field of composite functional polyester fibers, can solve problems such as poor flame retardant durability

Inactive Publication Date: 2013-04-03
BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flame-retardant finishing of polyester fabrics mainly uses hexabromocyclododecane, tetrakis hydroxymethyl phosphorus chloride / urea copolymer, and cyclic phosphate ester Antiblaze P45 produced by Amgard Company. Antiblaze 19T of Mobil Company of the United States uses cyclic It is a representative of phosphoric acid ester flame retardant finishing, but the flame retardant durability of the product obtained by the post-finishing method is poor
However, there is no report on the patented technology of moisture-absorbing flame-retardant polyester fiber with excellent comprehensive properties.

Method used

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  • Preparation method for moisture-absorbing and flame-retardant polyester fiber
  • Preparation method for moisture-absorbing and flame-retardant polyester fiber
  • Preparation method for moisture-absorbing and flame-retardant polyester fiber

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Embodiment Construction

[0025] The present invention will be further described by the following examples, obviously the present invention is not limited only to the following examples. (The embodiment feels that the writing is not clear enough to clearly explain the content of the inventive technology. It is recommended to explain the steps in detail)

[0026] 1. Pre-esterification of CEPPA

[0027] Feed CEPPA and EG at a molar ratio of 1:2, raise the temperature of EG to 120±2°C in advance, then add white crystalline solid flame retardant (CEPPA), stir at this temperature for 3.0h to carry out esterification reaction, The reaction product is transported to the storage tank for use.

[0028] 2. Esterification and polycondensation reaction

[0029] Using ethylene glycol (EG) and terephthalic acid (PTA) and a certain amount of isophthalic acid (IPA) (EG: (PTA+IPA)=1.2:1, molar ratio) as raw materials, in the direct esterification unit At 255°C, at the same time, add CEPPA esterification solution in ...

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Abstract

The invention provides moisture-absorbing and flame-retardant copolyester, which comprises terephthalic acid (PTA), other aromatic dicarboxylic acid or ester derivatives, aliphatic diol containing C2 to C6 atoms, a phosphorus flame retardant, moisture-adsorption group containing monomers, copolymer which is polymerized by flexible-chain monomers and contains ether bonds, a heat stabilizer and an anti-oxidation and uvioresistant additive. The textile fabric, which is prepared by spinning the synthesized moisture-absorbing and flame-retardant copolyester, has favorable moisture-absorbing and flame-retardant functions, and greatly improves the wearing comfort and safety flame retardancy of the polyester fabric.

Description

technical field [0001] The invention relates to a composite functional polyester fiber for preparing excellent hygroscopicity and high-efficiency flame retardancy. It belongs to the field of textile fibers. Background technique [0002] With the improvement of people's living standards, the requirements for the comfort and safety of textile fabrics are getting higher and higher; the comfort of clothing when wearing is closely related to the moisture absorption and release characteristics of clothing fabrics, and the safety of clothing fabrics is closely related to Flame retardancy has an important relationship, especially comfort and safety in special working environments. As we all know, polyester fiber is the largest variety of synthetic fiber (accounting for about 85% of synthetic fiber output), but it has poor hygroscopicity (moisture regain rate is only 0.4%) and poor flame retardancy (limiting oxygen index 20~22%), so it is urgently needed At the same time, it solves...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/692D01F6/84
Inventor 王锐
Owner BEIJING INSTITUTE OF CLOTHING TECHNOLOGY
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