High-shrinkage cation normal-pressure easy-to-dye polyester chip and preparation method thereof

A polyester chip, cationic technology, applied in the field of high shrinkage cationic normal pressure easy-dyeing polyester chips and its preparation, can solve the problems of lack of high shrinkage performance, dyeing, difficulty in dyeing, etc., and achieves bright color and complete chromatogram. , the effect of good spinnability and drafting

Inactive Publication Date: 2010-10-13
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that dyeing is difficult due to the characteristics of polyester macromolecular structure and the lack of polar groups combined with dyes, and it is impossible to dye dyes at normal temperature and pressure, and also does not have high shrinkage performance. A high-shrinkage cationic normal-pressure dyeable polyester chip and its preparation method

Method used

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  • High-shrinkage cation normal-pressure easy-to-dye polyester chip and preparation method thereof
  • High-shrinkage cation normal-pressure easy-to-dye polyester chip and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 2.5 liter small test reactor test process:

[0022] The quality of purified terephthalic acid 500g

[0023] Mass of ethylene glycol 164g

[0024] The mass of the third monomer SIPE 30.6g

[0025] The quality of the fourth monomer PEG 16.4g

[0026] The mass of the fifth monomer is 5g

[0027] The mass of the sixth monomer is 30g

[0028] The mass of catalyst antimony acetate 0.11g

[0029] Antioxidant mass 0.12g

[0030] The polyester test device is a batch polyester test device consisting of an esterification tank and a polycondensation tank. Add purified terephthalic acid and ethylene glycol in proportion to the esterification tank, and at the same time add the fourth, fifth and sixth monomers and antioxidants to control the pressure of the esterification tank at 0.25-0.3Mpa. When the amount of reaction water reaches 100-130ml, add a certain amount of ethylene glycol to depolymerize and homogenize the oligomers, control the temperature of the esterification tan...

Embodiment 2

[0032] 20 liter reactor test process:

[0033] The quality of purified terephthalic acid 5000g

[0034] Mass of ethylene glycol 1640g

[0035] The quality of the third monomer SIPE 300g

[0036] The quality of the fourth monomer PEG 164g

[0037] The mass of the fifth monomer is 50g

[0038] The mass of the sixth monomer is 300g

[0039] Mass of antimony acetate 1.1g

[0040] Antioxidant mass 1.2g

[0041] The polyester test device is a batch polyester test device consisting of an esterification tank and a polycondensation tank. Add purified terephthalic acid and ethylene glycol in proportion to the esterification tank, and at the same time add the fourth, fifth and sixth monomers and antioxidants to control the pressure of the esterification tank at 0.25-0.3Mpa. When the amount of reaction water reaches 100-130ml, add ethylene glycol to depolymerize and homogenize the oligomer, control the temperature of the esterification tank at 250-260°C, and after 15-35 minutes of ...

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Abstract

The invention discloses a high-shrinkage cation normal-pressure easy-to-dye polyester chip and a preparation method thereof. The high-shrinkage cation normal-pressure easy-to-dye polyester chip comprises the following components: 66-68 percent of purified terephthalic acid, 23-21 percent of glycol, 3.2-5.5 percent of isophthalic acid digylcol ester-5-sodium sulfonate, 2.1-3.3 percent of polyethylene glycol, 0.5-0.7 percent of isophthalic acid, 3.1-4 percent of hexanedioic acid, 0.012-0.036 percent of antimony acetate and 0.005-0.055 percent of antioxidant. The high-shrinkage cation normal-pressure easy-to-dye polyester chip is subjected to an esterification reaction at the pressure of 0.25-0.3MPa and the temperature of 250-260DEG C and a polycondensation reaction at the temperature of 230-270DEG C and at the vacuum degree of 0.08-0.098MPa and temperature preservation after the temperature reaches 272-278DEG C. The high-shrinkage cation normal-pressure easy-to-dye polyester chip has the advantages of high dyeing rate and dye suction rate at normal temperature and normal pressure, bright color, favorable performances of high shrinkage and resisting pilling, spinnability, drafting property and favorable physical property and post treatment performance of fibers.

Description

Technical field: [0001] The invention relates to a polyester chip and a preparation method thereof, in particular to a high-shrinkage cationic normal-pressure dyeable polyester chip and a preparation method thereof. Background technique: [0002] The polyester industry has developed from the simple polymerization of binary monomers to a comprehensive technology with multi-disciplinary technology compound penetration. my country's differentiated and functional polyester started late, but developed rapidly. At present, the market supply of conventional polyester products exceeds demand, and polyester products are gradually developing towards high performance and materialization. High value-added functional polyesters have attracted more and more attention from domestic enterprises and scientific research institutes because of their special functions. Many domestic production technologies are in the research and development or pilot stage, mainly relying on imports. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/66C08G63/672C08G63/78
Inventor 张敏柳风平史君赵燕玲刘志刚廖淑艳王俊艳王洪星张黎英曹志涛石洪波张英杰
Owner PETROCHINA CO LTD
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