Heat-resistant polyester activated industrial yarn and preparation method thereof

An industrial yarn, heat-resistant technology, applied in the direction of single-component polyester rayon, rayon manufacturing, melt spinning, etc., can solve problems such as poor adhesion performance

Active Publication Date: 2016-04-20
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with viscose and nylon, poly...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A preparation method of heat-resistant polyester activated industrial yarn, the main process is:

[0060] (1) Preparation of catalyst magnesium ethylene glycol:

[0061] Add ethylene glycol into the single-chamber electrolytic cell, the supporting electrolyte is magnesium chloride, the metal magnesium block is the anode, and the cathode is graphite; connect direct current, the initial voltage is 6V, the cathode current density is 150mA, and electrolyze for 10 hours at 50°C. Take out the electrode to obtain a white suspension; filter under reduced pressure, wash the white solid with absolute ethanol, and dry to obtain magnesium ethylene glycol;

[0062] (2) Preparation of polyester, including esterification reaction and polycondensation reaction:

[0063] Esterification reaction:

[0064] Use terephthalic acid, unsaturated dibasic acid maleic acid and ethylene glycol as raw materials, the molar ratio of ethylene glycol to terephthalic acid is 1.2:1, and the molar ratio...

Embodiment 2

[0079] A preparation method of heat-resistant polyester activated industrial yarn, the main process is:

[0080] (1) Preparation of catalyst magnesium ethylene glycol:

[0081] Add ethylene glycol into the single-chamber electrolytic cell, the supporting electrolyte is magnesium chloride, the metal magnesium block is the anode, and the cathode is graphite; connect direct current, the initial voltage is 10V, the cathode current density is 200mA, electrolyze at 60°C for 12 hours, after the electrolysis ends Take out the electrode to obtain a white suspension; filter under reduced pressure, wash the white solid with absolute ethanol, and dry to obtain magnesium ethylene glycol;

[0082] (2) Preparation of polyester, including esterification reaction and polycondensation reaction:

[0083] Esterification reaction:

[0084] Use terephthalic acid, unsaturated dibasic acid fumaric acid and ethylene glycol as raw materials, the molar ratio of ethylene glycol to terephthalic acid is ...

Embodiment 3

[0099] A preparation method of heat-resistant polyester activated industrial yarn, the main process is:

[0100] (1) Preparation of catalyst magnesium ethylene glycol:

[0101] Add ethylene glycol into the single-chamber electrolytic cell, the supporting electrolyte is magnesium chloride, the metal magnesium block is the anode, and the cathode is graphite; connect direct current, the initial voltage is 8V, the cathode current density is 160mA, and electrolyze for 11 hours at 55°C. Take out the electrode to obtain a white suspension; filter under reduced pressure, wash the white solid with absolute ethanol, and dry to obtain magnesium ethylene glycol;

[0102] (2) Preparation of polyester, including esterification reaction and polycondensation reaction:

[0103] Esterification reaction:

[0104] Use terephthalic acid, unsaturated dibasic acid adiene dioic acid and ethylene glycol as raw materials, the molar ratio of ethylene glycol to terephthalic acid is 1.5:1, and the molar...

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Abstract

The invention relates to heat-resistant polyester activated industrial yarn and a preparation method thereof. The heat-resistant polyester activated industrial yarn is polyester industrial yarn with a surface clad with an activating agent coating, and is obtained by carrying out solid phase viscosity increment on polyester including an unsaturated double bond, and then spinning the polyester subjected to the solid phase viscosity increment, and carrying out ultraviolet irradiation on the spun polyester; the heat-resistant polyester activated industrial yarn has gel content which is more than 10 percent and a fusion temperature which is more than 275 DEG C; when the heat-resistant polyester activated industrial yarn is in the test conditions of 0.05cN/dtex of fiber in 10min at temperature of 177 DEG C, the fiber has a dry heat shrinkage rate which is 2.5(+/-)0.5 percent and a wicking height which is not more than 5mm. The unsaturated double bond is introduced into the polyester; a cross linking reaction is completed in the spinning process of the fiber, so that the fiber is improved to a larger extent at the aspect of heat resistance; meanwhile, by forming the resinous activating agent coating on the surface of the polyester industrial yarn, the polarity of the polyester is enhanced; the reactivity with RFL (Resorcinol Formaldehyde Latex) is improved.

Description

technical field [0001] The invention belongs to the technical field of polyester industrial yarn preparation, and relates to a heat-resistant polyester activated industrial yarn and a preparation method thereof, in particular to an unsaturated double bond-containing polycondensation catalyst using ethylene glycol magnesium and ethylene glycol antimony Mixed polyester and heat-resistant polyester activated industrial yarn and its preparation method. Background technique [0002] Polyethylene terephthalate (PET) is a polymer with excellent properties. PET is widely used for its high modulus, high strength, crispness, good shape retention, purity and hygiene, and good barrier properties. In the fields of fiber, bottle packaging, film and sheet, etc., the output is increasing year by year, and the industry status has been significantly improved. [0003] PET is a symmetrical linear macromolecule, the molecular chain does not contain side chain groups, and its regularity is very...

Claims

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Application Information

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IPC IPC(8): D01F6/92D01F1/10C08G63/54C08G63/83C08G63/86C08G63/80D06M15/55D01D5/08D06M101/32
CPCC08G63/54C08G63/80C08G63/83C08G63/866D01D5/08D01F1/10D01F6/92D06M15/55D06M2101/32
Inventor 张元华汤方明王山水归斌翔
Owner JIANGSU HENGLI CHEM FIBER
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