A kind of preparation method of multifunctional hydrophilic polyester fiber

A polyester fiber, multi-functional technology, applied in the field of preparation of multi-functional hydrophilic polyester fiber, achieves the effects of small addition amount, reduced residence time and increased flexibility

Active Publication Date: 2015-10-28
江苏三联新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the use of sorbitol to prepare polyester for micro-modification.

Method used

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  • A kind of preparation method of multifunctional hydrophilic polyester fiber
  • A kind of preparation method of multifunctional hydrophilic polyester fiber
  • A kind of preparation method of multifunctional hydrophilic polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of preparation method of multifunctional hydrophilic polyester fiber, its concrete steps are:

[0043] (1) Preparation of hydrophilic polyester chips:

[0044]

[0045] Mix terephthalic acid and ethylene glycol in proportion to prepare slurry. Mix the prepared slurry with the catalyst tetrabutyl titanate in proportion and then add it to the esterification reactor for the first esterification reaction. The temperature of the first esterification reaction is 225°C, the reaction time is 4 hours, and the relative pressure of the reaction is 0 MPa. The by-product water is separated and collected by a fractionating tower, and the collection amount is measured with a graduated cylinder, and the theoretical value is calculated according to the reaction formula. When the collection amount of water reaches 82% of the theoretical value, sorbitol and polyethylene glycol (PEG) are added in proportion. -2000) for the second esterification reaction, the temperature of the ...

Embodiment 2

[0053] A kind of preparation method of multifunctional hydrophilic polyester fiber, its concrete steps are:

[0054] (1) Preparation of hydrophilic polyester chips:

[0055]

[0056]

[0057] Mix terephthalic acid and ethylene glycol in proportion to prepare slurry. Mix the prepared slurry with ethylene glycol antimony, antioxidant 1010 and trimethyl phosphate in proportion and then add it to the esterification reactor for the first esterification reaction. The temperature of the first esterification reaction is 250°C, and the reaction time is 0.5h, the relative pressure of the reaction is 0.4MPa. The by-product water is separated and collected by a fractionating tower, and the collection amount is measured with a graduated cylinder, and the theoretical value is calculated according to the reaction formula. When the collection amount of water reaches 95% of the theoretical value, sorbitol and polyethylene glycol (PEG) are added in proportion. -4000) for the second este...

Embodiment 3

[0063] A kind of preparation method of multifunctional hydrophilic polyester fiber, its concrete steps are:

[0064] (1) Preparation of hydrophilic polyester chips:

[0065]

[0066]Mix terephthalic acid and ethylene glycol in proportion to prepare slurry. Mix the prepared slurry with antimony trioxide, antioxidant 168 and antioxidant 616 mixture, trimethyl phosphate, alkyl phosphoric acid diester and tris(nonylphenyl) phosphite mixture in proportion and then add to esterification reaction The kettle carries out the first esterification reaction, the temperature of the first esterification reaction is 240° C., the reaction time is 3 hours, and the relative pressure of the reaction is 0.35 MPa. The by-product water is separated and collected by a fractionating tower, and the collection amount is measured with a graduated cylinder, and the theoretical value is calculated according to the reaction formula. When the collection amount of water reaches 90% of the theoretical val...

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Abstract

The invention provides a preparation method for multi-functional hydrophilic polyester fibers. The method is characterized by specifically comprising the following steps: firstly, mixing terephthalic acid with ethylene glycol to prepare a paste; adding into an esterfying reactor to carry out first esterfying reaction; when the collecting quantity of byproducts reaches 82-95% of a theoretical value, adding sorbitol and polyethylene glycol to carry out second esterfying reaction; after finishing esterfying reaction, performing polycondensation reaction on obtained esterfied products so as to obtain a hydrophilic polyester chip; secondly, preparing nanometer coffee carbon powder; thirdly, preparing nanometer bamboo charcoal powder containing an ultraviolet resistor; fourthly, performing fusing granulation on the nanometer bamboo charcoal powder containing the ultraviolet resistor and the hydrophilic polyester chip so as to obtain functional master batch; fifthly, performing fusing spinning on the functional master batch and the hydrophilic polyester chip so as to obtain the multi-functional hydrophilic polyester fibers. The multi-functional hydrophilic polyester fibers have great hydrophilic performance and continuously have the functions of the ultraviolet resistor and the bamboo charcoal for a long term.

Description

technical field [0001] The invention relates to a preparation method of multifunctional hydrophilic polyester fiber. Background technique [0002] Since polyester and polyester fiber entered large-scale industrialization in the 1970s, the development speed is much faster than other synthetic materials and synthetic fibers. In 2010, the output of polyester fiber in my country was 25.13 million tons, accounting for about 81% of my country's chemical fiber output; It accounts for about 70% of the world's polyester fiber production. In the next 10 years, the world's polyester and polyester fiber will still maintain a growth rate of more than 3%, and polyester fiber will account for more than 60% of the world's total fiber products. The physical and mechanical properties of polyester fibers such as strength, abrasion resistance, resilience and dimensional stability can better meet the needs of various uses. However, polyester fiber is a typical hydrophobic fiber with a moisture ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F6/92D01F1/10C08G63/78C08G63/672C08G63/20
Inventor 陈向玲王朝生王华平张玉梅吉鹏
Owner 江苏三联新材料股份有限公司
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