Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fluorine-containing PET (polyethylene terephthalate)-PTT (polytrimethylene terephthalate) copolyester FDY (fully drawn yarn) fiber and preparation method thereof

A PET-PTT, fluorine-containing polyester technology, applied in the direction of single-component copolyester rayon, fiber type, fiber processing, etc., can solve the problem of time-consuming and laborious, achieve smooth and soft hand feel, solve the problem of timeliness, good heat resistance

Active Publication Date: 2014-01-22
WUJIANG JIALI ADVANCED FIBER CO LTD
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrophobic and antifouling modification of polyester by copolymerization can fundamentally solve the problems of timeliness, durability and wear resistance of hydrophobic and antifouling polyester, and can also solve problems such as time-consuming and labor-intensive problems

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
  • Fluorine-containing PET (polyethylene terephthalate)-PTT (polytrimethylene terephthalate) copolyester FDY (fully drawn yarn) fiber and preparation method thereof
  • Fluorine-containing PET (polyethylene terephthalate)-PTT (polytrimethylene terephthalate) copolyester FDY (fully drawn yarn) fiber and preparation method thereof
  • Fluorine-containing PET (polyethylene terephthalate)-PTT (polytrimethylene terephthalate) copolyester FDY (fully drawn yarn) fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A preparation method of fluorine-containing PET-PTT copolyester is divided into an esterification reaction stage, a precondensation reaction stage and a final polycondensation reaction stage. The specific steps are:

[0072] Step 1): Use tetrafluoroterephthalic acid and ethylene glycol with a molar ratio of 1:1.3 as raw materials, and add 0.01% magnesium oxide based on the weight of tetrafluoroterephthalic acid at the same time, make a uniform slurry and carry out esterification Reaction; the esterification reaction is pressurized in a nitrogen atmosphere, the pressure is controlled at 0.4MPa, and the temperature is at 250°C. The esterification water distillate reaches more than 90% of the theoretical value, which is the end of the esterification reaction; add the catalyst antimony trioxide and continue Vacuumize the system, control the pressure of the system below the absolute pressure of 1KPa, and control the temperature at 260°C to carry out the pre-condensation reac...

Embodiment 2

[0078] A preparation method of fluorine-containing PET-PTT copolyester is divided into an esterification reaction stage, a precondensation reaction stage and a final polycondensation reaction stage. The specific steps are:

[0079] Step 1): 2,5-difluoroterephthalic acid and ethylene glycol with a molar ratio of 1:1.5 are used as raw materials, and 0.03% of the weight of 2,5-difluoroterephthalic acid is added at the same time. After forming a uniform slurry, carry out the esterification reaction; the esterification reaction is pressurized in a nitrogen atmosphere, the pressure is controlled at 0.3MPa, the temperature is at 245°C, and the esterification water distillate reaches more than 90% of the theoretical value, which is the end point of the esterification reaction; Add the antimony ethylene glycol catalyst, continue vacuuming, control the system pressure below 800Pa absolute pressure, control the temperature at 260°C, carry out pre-condensation reaction, react for 2 hours,...

Embodiment 3

[0085] A preparation method of fluorine-containing PET-PTT copolyester is divided into an esterification reaction stage, a precondensation reaction stage and a final polycondensation reaction stage. The specific steps are:

[0086] Step 1): Use tetrafluoroterephthalic acid and ethylene glycol with a molar ratio of 1:1.8 as raw materials, and add 0.05% calcium oxide based on the weight of tetrafluoroterephthalic acid at the same time, make a uniform slurry and carry out esterification Reaction: The esterification reaction is pressurized in a nitrogen atmosphere, the pressure is controlled at 0.2MPa, the temperature is 240°C, and the amount of esterified water distilled reaches more than 90% of the theoretical value, which is the end of the esterification reaction; the catalyst antimony acetate is added, and the vacuum is continued , the system pressure is controlled below the absolute pressure of 600Pa, the temperature is controlled at 265°C, and the precondensation reaction is...

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

No PUM Login to View More

Abstract

The invention relates to a fluorine-containing PET-PTT copolyester FDY fiber and a preparation method thereof. The preparation method comprises preparation of a fluorine-containing PET-PTT copolyester melt and preparation of the fluorine-containing PET-PTT copolyester FDY fiber. According to the preparation method, fluorine-containing terephthalic acid, terephthalic acid, ethylene glycol and 1,3-propylene glycol are used as raw materials, an inhibitor is added to prepare the fluorine-containing PET-PTT copolyester melt, and the melt is directly extruded or produced into slices to be subjected to screw melt extrusion, cooling, oiling, drawing and winding so as to prepare the fluorine-containing PET-PTT copolyester FDY fiber. According to the preparation method, the obtained fluorine-containing PET-PTT copolyester FDY fiber has the breaking strength in a range of 3-5cN / dex and the breaking elongation in a range of 18-45%. Fluorine atoms are introduced, so that super-hydrophobic, hydrophobic, oleophobic and stain-resistant properties of the polyester FDY fiber are improved, and the fiber has great prospects in manufacturing of water-proof clothes, stain-resistant work clothes and work clothes of certain particular industries.

Description

technical field [0001] The invention relates to a fluorine-containing PET-PTT copolyester FDY fiber and a preparation method thereof, in particular to a copolyester composed of fluorine-containing PET and PTT structures on the main chain and a preparation method thereof. Background technique [0002] Polyester (PET) is one of the most widely used synthetic polymers by humans. PET was synthesized as early as the 1940s, and it was found to have excellent properties, and it is widely used in textiles, packaging, and medical treatment. Sanitation, automobiles, electronic appliances, safety protection, environmental protection and other fields. Introducing stretching in the spinning process can obtain coiled yarn with high degree of orientation and medium crystallinity, which is called fully drawn yarn, or FDY. FDY is mainly used as the warp yarn of water-jet loom fabrics. The conventional fully drawn yarns of polyester and nylon belong to chemical fiber filaments. FDY fabric f...

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): D01F6/84D01F11/08C08G63/682C08G63/86D06M13/02D06M15/53D06M13/292D06M13/256D06M13/236D06M101/32
Inventor 江立平宋怀军张荣吴国旺丁建中曾晓元黄卓旺
Owner WUJIANG JIALI ADVANCED FIBER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com