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Sea-island fiber water-soluble polyester and preparation method thereof

A technology of sea-island fiber and water-soluble polyester, which is applied in the direction of conjugated synthetic polymer rayon, etc., can solve the problem that the solution is not environmentally friendly

Active Publication Date: 2015-02-25
ANHUI WANWEI UPDATED HIGH TECH MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Alkali-soluble polyester chips are generally used in the market as the sea component raw material for the production of sea-island fibers. However, during the process of immersing, dissolving, and opening fibers in lye, the fiber structure of the "island" item is also affected to varying degrees, and the solution does not change. Environmental friendly

Method used

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  • Sea-island fiber water-soluble polyester and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Sea-island fiber water-soluble polyester is prepared by the following method in the present embodiment:

[0026] 1. Esterification stage

[0027] Mix 11kg of refined terephthalic acid, 4.93kg of ethylene glycol and 0.25kg of neopentyl glycol, add 5.6g of catalyst antimony trioxide and 2.6g of stabilizer trimethyl phosphate at the same time, stir and mix evenly, at 240- React at 250°C and 0.2-0.3MPa for 3-4 hours, and the end of the reaction is determined by the amount of distilled water reaching the theoretically calculated value; after the reaction, add 2.92kg of SIPE, 1.4kg of adipic acid, and 0.8 kg of polyethylene glycol to the reaction solution kg, carry out mixing modification, and react at 230-250°C under normal pressure for 1-1.5 hours to obtain a copolymerized modified ester compound;

[0028] 2. Polymerization stage

[0029] React the copolymerized modified esterified product obtained in the esterification stage at a pressure of 1KPa and a temperature of 250...

Embodiment 2

[0032] Sea-island fiber water-soluble polyester is prepared by the following method in the present embodiment:

[0033] 1. Esterification stage

[0034] 15kg of refined terephthalic acid, 6.73kg of ethylene glycol and 0.32kg of neopentyl glycol were mixed, and 7.6g of catalyst antimony trioxide and 3.6g of stabilizer trimethyl phosphate were added at the same time, stirred and mixed evenly, at 240 React at -250°C and 0.2-0.3MPa for 3-4 hours, and the end of the reaction is determined by the amount of distilled water reaching the theoretical calculation value; after the reaction, add 3.98kg of SIPE, 1.9kg of adipic acid, and polyethylene glycol to the reaction solution 1.1kg, mixed and modified, and reacted at 230-250°C under normal pressure for 1-1.5 hours to obtain a copolymerized modified ester compound;

[0035] 2. Polymerization stage

[0036] React the copolymerized modified esterified product obtained in the esterification stage at a pressure of 1KPa and a temperature ...

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Abstract

The invention discloses sea-island fiber water-soluble polyester and a preparation method thereof. The sea-island fiber water-soluble polyester is characterized in that the sea-island fiber water-soluble polyester is prepared by taking terephthalic acid, ethylene glycol, neopentyl glycol, polyethylene glycol, diethyl m-phthalate-5-sodium sulfonate and aliphatic binary acid as monomers, antimonous oxide or antimony acetate as catalyst and trimethyl phosphate as stabilizer through esterification, polymerilization and post-treatment. The sea-island fiber water-soluble polyester can be dissolved in hot water at temperature of 80 DEG C without alkali liquor, and sea-island fibers are not damaged in the process of fiber splitting of the sea-island fibers.

Description

1. Technical field [0001] The invention relates to a sea-island fiber water-soluble polyester and a preparation method thereof. 2. Background technology [0002] Sea island microfibers are mainly used for imitation silk fabrics, imitation suede, jeanette, artificial leather, ski and water ski suits, swimming suits, anti-adhesion fabrics and building materials for marine organisms, oil-water separation fabrics, oil-absorbing and water-absorbing materials, cleaning cloths , Dust mask, air filter material. Due to the extremely fine fibers, the fabrics made of this fiber have the characteristics of soft hand feeling, fine and smooth waxy, uniform dyeing, and good drapability. [0003] Alkali-soluble polyester chips are generally used in the market as the sea component raw material for the production of sea-island fibers. However, during the process of immersing, dissolving, and opening fibers in lye, the fiber structure of the "island" item is also affected to varying degrees, ...

Claims

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Application Information

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IPC IPC(8): C08G63/688C08G63/672C08G63/86C08K5/521D01F8/14
Inventor 许守清陈少奎高申宝谈南迪潘晓明欧阳勇军杨芳金善强
Owner ANHUI WANWEI UPDATED HIGH TECH MATERIAL CO LTD
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