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Preparation method of inflaming retarding hydrophilic polyester fiber

A polyester fiber and hydrophilic technology, which is used in the manufacture of fire-retardant and flame-retardant filaments, single-component polyester rayon, etc., to achieve the effect of reducing the generation of diethylene glycol, small addition amount, and high moisture regain.

Active Publication Date: 2013-04-03
中国化学纤维工业协会
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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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  • Preparation method of inflaming retarding hydrophilic polyester fiber
  • Preparation method of inflaming retarding hydrophilic polyester fiber
  • Preparation method of inflaming retarding hydrophilic polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of preparation method of flame retardant hydrophilic polyester fiber, its specific steps are:

[0046] (1) Preparation of hydrophilic polyester chips:

[0047]

[0048] Mix terephthalic acid and ethylene glycol in proportion to prepare slurry. The prepared slurry was mixed with the catalyst tetrabutyl titanate and then put into an esterification reactor for the first esterification reaction. The temperature of the first esterification reaction was 225° C., the reaction time was 4 hours, and the relative pressure of the reaction was 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 second...

Embodiment 2

[0055] A kind of preparation method of flame retardant hydrophilic polyester fiber, its specific steps are:

[0056] (1) Preparation of hydrophilic polyester chips:

[0057]

[0058]

[0059] Mix terephthalic acid and ethylene glycol in proportion to prepare slurry. Mix the prepared slurry with the mixture of antimony trioxide and tetrabutyl titanate, antioxidant 168 and alkyl phosphoric acid diester in proportion, and then add it to the esterification reactor for the first esterification reaction. The temperature of the first esterification reaction is The temperature is 240°C, the reaction time is 3h, and the relative pressure of the reaction is 0.3MPa. The by-product water is separated and collected by a fractionating tower, and the collected amount is measured with a graduated cylinder, and the theoretical value is calculated according to the reaction formula. When the collected amount of water reaches 92% of the theoretical value, sorbitol and polyethylene glycol (...

Embodiment 3

[0064] A kind of preparation method of flame retardant hydrophilic polyester fiber, its specific steps are:

[0065] (1) Preparation of hydrophilic polyester chips:

[0066]

[0067]Mix terephthalic acid and ethylene glycol in proportion to prepare slurry. Mix the prepared slurry with antimony acetate, antioxidant 1010, antioxidant 168 and tris(nonylphenyl) phosphite in proportion and then add it to the esterification reaction kettle for the first esterification reaction. The first esterification reaction temperature is 230°C, the reaction time is 3h, and the relative pressure of the reaction is 0.35MPa. 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 88% of the theoretical value, add sorbitol and polyethylene glycol (PEG-4000 ) to carry out the second esterificatio...

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Abstract

The invention provides a preparation method of inflaming retarding hydrophilic polyester fiber. The preparation method is characterized by comprising the specific steps of: 1, mixing terephthalic acid with ethylene glycol to prepare slurry, adding the mixture into an esterification reaction kettle for primary esterification reaction, adding sorbitol and polyethylene glycol for carrying out secondary esterification reaction when the collecting quantity of byproducts reaches 82-95 percent of a theoretical value, after the esterification reaction is completed, carrying out a condensation polymerization on an esterification product to prepare a hydrophilic polyester slice; 2, after coffee grounds are dried, calcining to obtain coffee carbon, activating the nano-level coffee carbon powder body, adding a fire retardant to obtain a fire retardant-containing nano-level coffee carbon powder body; 3, smelting and pelleting the fire retardant-containing nano-level coffee carbon powder body and the hydrophilic polyester slice to obtain a functional master batch; and 4, smelting and spinning the functional master batch and the hydrophilic polyester slice to obtain the inflaming retarding hydrophilic polyester fiber. The inflaming retarding hydrophilic polyester fiber has the advantages of good hydrophilic performance and has a long-term continuous function of the fire retardant and the coffee carbon.

Description

technical field [0001] The invention relates to a method for preparing a flame-retardant 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; [0003] 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 ...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/07C08G63/78C08G63/672C08G63/20C08G63/183
Inventor 王华平陈向玲王朝生李建武张玉梅方孝芬冯梦倩
Owner 中国化学纤维工业协会
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