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

Polyesteramide as well as preparation method and application thereof

A polyamide ester and polycondensation reaction technology, which is applied in the field of modified polyester, can solve the problems of polyester amide yellowing and other problems, and achieve low b value, good cotton-like performance, and good fiber color effects

Active Publication Date: 2020-07-24
DONGHUA UNIV
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problem of yellowing of polyamide ester in the prior art, and provide a kind of polyamide ester and its preparation method and application

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
  • Polyesteramide as well as preparation method and application thereof
  • Polyesteramide as well as preparation method and application thereof
  • Polyesteramide as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A kind of preparation method of polyamide ester, concrete steps are as follows:

[0038] (a) After mixing PTA and ethylene glycol with a molar ratio of 1.0:1.2, the esterification reaction was carried out at a temperature of 230° C. for 4 hours to obtain diol terephthalate;

[0039](b) After adding B to an aqueous solution of A with a concentration of 50 wt%, react for 3 hours at a temperature of 180° C. to obtain a diamine dibasic acid derivative. The molar ratio of A and B is 1.0:1.2, and A is dibasic acid. Amine dibasic acid salt, B is a dibasic acid, the dibasic acid in A is the same as B, the diamine in the dibasic amine dibasic acid salt is 1,6-hexamethylenediamine, dibasic amine dibasic acid The dibasic acid in the salt is 1,6-adipic acid;

[0040] (c) After mixing the diol ester of terephthalate and the diamine dibasic acid derivative in a mass ratio of 80:20, add a catalyst and a stabilizer and react for 3 hours at a temperature of 260°C and a pressure of 30Pa...

Embodiment 2

[0047] A kind of preparation method of polyamide ester, concrete steps are as follows:

[0048] (a) After mixing PTA and ethylene glycol with a molar ratio of 1.0:1.2, the esterification reaction was carried out at a temperature of 240° C. for 4 hours to obtain diol terephthalate;

[0049] (b) After adding B to an aqueous solution of A with a concentration of 55 wt%, react for 2.5 hours at a temperature of 178° C. to obtain a diamine dibasic acid derivative. The molar ratio of A and B is 1.0:1.2, and A is Dibasic amine dibasic acid salt, B is dibasic acid, the dibasic acid in A is the same as B, the diamine in dibasic amine dibasic acid salt is 1,4-butylene diamine, dibasic amine dibasic acid The dibasic acid in the acid salt is 1,6-adipic acid;

[0050] (c) After mixing the diol ester of terephthalate and the diamine dibasic acid derivative in a mass ratio of 70:30, add a catalyst and a stabilizer and react for 3 hours at a temperature of 275°C and a pressure of 25Pa Obtain...

Embodiment 3

[0052] A kind of preparation method of polyamide ester, concrete steps are as follows:

[0053] (a) After mixing PTA and ethylene glycol with a molar ratio of 1.0:1.2, the esterification reaction was carried out at a temperature of 240° C. for 3.5 hours to obtain diol terephthalate;

[0054] (b) Add B to the aqueous solution of A with a concentration of 60 wt%, and then react for 3 hours at a temperature of 167° C. to obtain diamine dibasic acid derivatives. The molar ratio of A and B is 1.0:1.2, and A is dibasic acid. Amine dibasic acid salt, B is a dibasic acid, the dibasic acid in A is the same as B, the diamine in diamine dibasic acid salt is 1,5-pentanediamine, dibasic amine dibasic acid The dibasic acid in the salt is 1,6-adipic acid;

[0055] (c) After mixing the diol ester of terephthalate and the diamine dibasic acid derivative at a mass ratio of 95:5, add a catalyst and a stabilizer and react for 3 hours at a temperature of 275°C and a pressure of 20Pa Obtain the p...

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 polyesteramide as well as a preparation method and application thereof. The method comprises the following steps: mixing terephthalic acid dihydric alcohol ester and a diaminedibasic acid derivative, and then carrying out condensation polymerization to obtain the polyesteramide, the end group of the diamine dibasic acid derivative is carboxyl, and is prepared by reactionof A and B, A is diamine dibasic acid salt, B is dibasic acid, and the dibasic acid in the A is the same as that in the B; the structural formula of the prepared polyesteramide is as shown in the specification, in the formula, R1 or R2 is-OH or-O (CH2) yOH, the value range of y is 2-8, the value range of m is 4-8, the value range of n is 4-10, and the value range of X is 20-80; the application isas follows: spinning the polyesteramide to obtain polyesteramide fiber. According to the preparation method, the problem of yellowing of the polyesteramide can be effectively avoided, the prepared polyesteramide has a low b value, and the color of the polyesteramide fiber prepared through spinning processing is good.

Description

technical field [0001] The invention belongs to the technical field of modified polyester, and relates to a polyesteramide and its preparation method and application. Background technique [0002] The molecular structure of polyethylene terephthalate (PET) fiber has the characteristics of high stereoregularity, tight molecular chain arrangement, symmetrical structure and rigid benzene ring in the molecular chain, which makes PET have good physical and chemical properties. Mechanical properties, chemical resistance and resistance to microbial attack. PET's high crystallinity, high orientation during fiber formation and other characteristics make its fabrics have good shape retention, crispness, easy washing and quick drying, etc., so it is very popular among consumers. However, its own nature also brings disadvantages such as hard hand feeling, poor hydrophilicity and easy generation of static electricity of fibers, yarns and fabrics, which hinders further application and de...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/44D01F6/82
CPCC08G69/44D01F6/82
Inventor 王学利胡红梅孙莉娜黄莉茜俞建勇李发学吴德群何勇石禄丹
Owner DONGHUA UNIV
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