Preparation method of antistatic hydrophilic polyester fiber

A polyester fiber, antistatic technology, applied in the field of preparation of antistatic hydrophilic polyester fiber, to achieve the effects of small addition, increased flexibility, and low cost increase

Active Publication Date: 2013-02-13
中国化学纤维工业协会
View PDF11 Cites 23 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of antistatic hydrophilic polyester fiber
  • Preparation method of antistatic hydrophilic polyester fiber
  • Preparation method of antistatic hydrophilic polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Hydrophilic polyester chips are produced by continuous polymerization process, and its formula is as follows:

[0040]

[0041] 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, add sorbitol and polyethylene glycol (PEG-2000 ) to carry out the second esterification reaction, the temperature of the second esterification reaction is 240° C., the pressure is norma...

Embodiment 2

[0047] (1) Hydrophilic polyester chips are produced by continuous polymerization process, and its formula is as follows:

[0048]

[0049] Firstly, ethylene glycol and titanium dioxide are mixed in proportion for beating, and then mixed with terephthalic acid 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, add sorbitol and polyethylene glycol (PEG-4000 ) to carry out the se...

Embodiment 3

[0053] (1) Hydrophilic polyester chips are produced by continuous polymerization process, and its formula is as follows:

[0054]

[0055] Firstly, ethylene glycol and titanium dioxide are mixed in proportion for beating, and then mixed with terephthalic acid in proportion to prepare slurry. Mix the prepared slurry with antimony trioxide, antioxidant 168, and alkyl phosphoric acid diester in proportion, then add it to the esterification reaction kettle for the first esterification reaction. The first esterification reaction temperature is 230°C, and the reaction The time is 2.5h, and the relative pressure of the reaction is 0.25MPa. 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 85% of the theoretical value, add sorbitol and polyethylene glycol (PEG-6000 ) to carry ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Contact angleaaaaaaaaaa
Contact angleaaaaaaaaaa
Contact angleaaaaaaaaaa
Login to view more

Abstract

The invention provides a preparation method of an antistatic hydrophilic polyester fiber. The preparation method is characterized in that the specific steps are as follows: step 1, mixing terephthalic acid with ethylene glycol in a molar ratio of 1:1.05 to 2.0 to prepare slurry; adding the prepared slurry into an esterification reactor to perform a first esterification reaction; when the amount of the by-product collection of the first esterification reaction is up to 82-95% of the theoretical value, adding sorbitol and polyethylene glycol to perform a second esterification reaction; after the esterification reaction, performing a polycondensation reaction on the obtained esters to prepare antistatic hydrophilic polyester; and step 2, performing melt spinning on the obtained antistatic hydrophilic polyester to prepare the antistatic hydrophilic polyester fiber. The preparation method provided by the invention has good modification effect and is suitable for the melt direct spinning process.

Description

technical field [0001] The invention relates to a preparation method of antistatic 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 regai...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D01F6/84C08G63/672C08G63/85C08G63/86
Inventor 陈向玲王华平王朝生张玉梅吉鹏姜东
Owner 中国化学纤维工业协会
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap