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

Copolyamide industrial yarn and preparation method thereof

A technology of copolyamide and industrial yarn, which is applied in the direction of single-component polyamide rayon, rayon manufacturing, filament/thread forming, etc., which can solve the problem of low wear resistance and chemical resistance of polyester industrial yarn and increase production Cost, complex production process and other issues, to achieve low heat shrinkage performance, improve breaking strength, increase the effect of drafting ratio

Pending Publication Date: 2019-06-25
CATHAY WUSU BIOMATERIAL CO LTD +2
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above method requires ultraviolet light irradiation to make it crosslinked, and the production process is relatively complicated, which increases the production cost and reduces the output; in addition, the above-mentioned polyester industrial yarn has low abrasion resistance and chemical resistance, which are generally lower than those of polyamide industrial yarn

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
  • Copolyamide industrial yarn and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The copolyamide industrial yarn in this example is obtained by polymerizing raw materials including monomers and additives, wherein the monomers are composed of 1,5-pentanediamine, terephthalic acid and adipic acid, and 1,5-pentanediamine in the monomers The mass content of diamine is 40%, the mass content of terephthalic acid is 25%, and the mass content of adipic acid is 35%; the additive is antioxidant 1010.

[0074] The preparation method of the copolyamide industrial yarn of the present embodiment comprises the steps:

[0075] 1. Prepare mixed solution

[0076] Under nitrogen conditions, mix 1.32kg 1,5-pentamethylenediamine, 0.817kg terephthalic acid, 1.16kg adipic acid, 3.3kg water and antioxidant 1010 in a polymerization kettle, adjust with a small amount of pentamethylenediamine The pH value was 8.0, and a mixed solution was obtained; wherein, the total concentration of monomers in the mixed solution was 50wt%, and the content of antioxidant 1010 was 50ppm.

...

Embodiment 2

[0088] The copolyamide industrial yarn in this example is obtained by polymerizing raw materials including monomers and additives, wherein the monomers are composed of 1,5-pentanediamine, terephthalic acid and adipic acid, and 1,5-pentanediamine in the monomers The mass content of diamine is 40%, the mass content of terephthalic acid is 31%, and the mass content of adipic acid is 29%; the additive is copper acetate.

[0089] The preparation method of the copolyamide industrial yarn of the present embodiment comprises the steps:

[0090] 1. Prepare mixed solution

[0091] Under nitrogen, mix 1.31kg 1,5-pentanediamine, 1.02kg terephthalic acid, 0.971kg adipic acid, 3.3kg water and copper acetate in a polymerization kettle, and use a small amount of pentamethylenediamine to adjust the pH value is 8.0, and a mixed solution is obtained; wherein, the total concentration of monomers in the mixed solution is 50wt%, and the content of copper acetate is 0.5%.

[0092] 2. Preparation o...

Embodiment 3

[0103] The copolyamide industrial yarn in this example is obtained by polymerizing raw materials including monomers and additives, wherein the monomers are composed of 1,5-pentanediamine, terephthalic acid and dodecanedibasic acid, and 1 , The mass content of 5-pentanediamine is 35%, the mass content of terephthalic acid is 37%, and the mass content of dodecanedibasic acid is 28%; the additive is sodium hypophosphite.

[0104] The preparation method of the copolyamide industrial yarn of the present embodiment comprises the steps:

[0105] 1. Prepare mixed solution

[0106] Under nitrogen, mix 1.4kg of 1,5-pentanediamine, 1.47kg of terephthalic acid, 1.09kg of dodecanedibasic acid, 2.64kg of water and sodium hypophosphite in a polymerization kettle, and use a small amount of pentamethylenediamine The amine adjusted the pH value to 7.8 to obtain a mixed solution; wherein, the total concentration of monomers in the mixed solution was 60wt%, and the content of sodium hypophosphit...

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
Breaking strengthaaaaaaaaaa
Melting pointaaaaaaaaaa
Melting pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a copolyamide industrial yarn and a preparation method thereof. The copolyamide industrial yarn is prepared by polymerizing raw materials including a monomer, the monomer includes 1, 5-pentanediamine, a first dibasic acid and a second dibasic acid, wherein the first dibasic acid is terephthalic acid; the preparation method of the copolyamide industrial yarn comprises the following steps: 1) preparing the raw materials into a mixed solution; 2) polymerizing, granulating and solid-phase-tackifying the mixed solution to obtain tackifying copolyamide resin, and heating and melting the tackifying copolyamide resin to obtain tackifying copolyamide melt; 3) spinning the tackified copolyamide melt to obtain virgin yarn; 4) carrying out cooling, oiling, stretching and windingforming on the virgin silk to obtain the copolyamide industrial yarn. The copolyamide industrial yarn has good high temperature resistance and thermal stability.

Description

technical field [0001] The invention relates to a copolyamide material, in particular to a copolyamide industrial yarn and a preparation method thereof. Background technique [0002] Industrial yarn has the characteristics of high strength, low elongation, good dimensional stability, corrosion resistance, fatigue resistance, aging resistance, etc., so it is widely used in tire cords, canvas, conveyor belts, airbags, parachutes, ropes, safety belts, Industrial filter cloth, tents and other fields. At present, industrial yarns are mainly polyester, polyamide 6 and polyamide 66, but the melting point of these materials is generally 220-260°C. [0003] The Chinese patent with the publication number CN 105504240A discloses a heat-resistant polyester industrial yarn and its preparation method. The heat-resistant high-strength polyester industrial yarn is spun from polyester containing unsaturated double bonds after solid-phase tackification and passed through Obtained by ultravi...

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): D01F6/90D01F1/10C08G69/26C08G69/28D01D5/088
Inventor 孙朝续季薇芸徐晓辰秦兵兵刘修才
Owner CATHAY WUSU BIOMATERIAL 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