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Heavy-caliber conveyer belt

A conveyor belt and large-diameter technology, applied in the field of polyester modification, can solve the problems of cost increase and complicated dipping process

Active Publication Date: 2015-04-08
JIANGSU HENGLI CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dipping treatment is a technical measure to activate the surface of polyester fabric and improve the interface bonding of coated fabrics, but the process of dipping treatment is complicated and the cost will be greatly increased

Method used

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  • Heavy-caliber conveyer belt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] A preparation method for a large-diameter conveyor belt, comprising the following steps:

[0094] (1) Preparation of amino fatty acid ethylene glycol ester:

[0095] 1) Add dodecanedicarboxylic acid and methanol into the reactor at a molar ratio of 1:1.5, heat to 80°C under the catalysis of concentrated sulfuric acid, reflux for esterification, cool, separate and purify to obtain dodecanedicarboxylic acid Acid monomethyl ester; Described concentrated sulfuric acid refers to the sulfuric acid that mass concentration is 70%, and the concentrated sulfuric acid add-on is 3wt% of dodecane dicarboxylic acid;

[0096] 2) Dissolve the monomethyl dodecanedicarboxylate, lead tetraacetate and lithium bromide in benzene (molar ratio 1:1:1), wherein the monomethyl dodecanedicarboxylate concentration is 0.05mol / L , under a nitrogen atmosphere, react at 80 ° C, reflux, when no more gas is produced, add a certain amount of dilute sulfuric acid to react for 2 hours, then wash, purify and...

Embodiment 2

[0133] A preparation method for a large-diameter conveyor belt, comprising the following steps:

[0134] (1) Preparation of amino fatty acid ethylene glycol ester:

[0135] 1) Add pentacodecanedicarboxylic acid and methanol into the reactor in a molar ratio of 1:1.5, under the catalysis of concentrated sulfuric acid, heat to 110°C, reflux for esterification, cool, separate and purify to obtain pentacodecane Dicarboxylic acid monomethyl ester; Described concentrated sulfuric acid refers to the sulfuric acid that mass concentration is 70%, and the concentrated sulfuric acid add-on is 3wt% of pentacosane dicarboxylic acid;

[0136] 2) The monomethyl pentacodecanedicarboxylate, lead tetraacetate and lithium bromide are dissolved in benzene (molar ratio 1:1:1), wherein the concentration of monomethyl pentacodecanedicarboxylate is 0.07mol / L, under nitrogen atmosphere, react at 85°C, reflux, when no more gas is generated, add a certain amount of dilute sulfuric acid to react for 3 ...

Embodiment 3

[0174] A preparation method for a large-diameter conveyor belt, comprising the following steps:

[0175] (1) Preparation of amino fatty acid ethylene glycol ester:

[0176] 1) Add pentadecanedicarboxylic acid and methanol into the reactor in a molar ratio of 1:1.5, under the catalysis of concentrated sulfuric acid, heat to 85°C, reflux for esterification, cool, separate and purify to obtain pentadecanedicarboxylic acid acid monomethyl ester; described concentrated sulfuric acid refers to the sulfuric acid that mass concentration is 70%, and the concentrated sulfuric acid add-on is 3wt% of pentadecanedicarboxylic acid;

[0177] 2) Dissolve the monomethyl pentadecanedicarboxylate, lead tetraacetate and lithium bromide in benzene (molar ratio 1:1:1), wherein the concentration of monomethyl pentadecanedicarboxylate is 0.08mol / L , under nitrogen atmosphere, react at 90°C, reflux, when no more gas is produced, add a certain amount of dilute sulfuric acid to react for 2.5 hours, the...

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Abstract

The invention relates to a heavy-caliber conveyer belt. The heavy-caliber conveyer belt comprises a fabric layer and a polyurethane coating, the warps and the wefts of the fabric layer are modified polyester industry yarns, the modified polyester industry yarns are prepared from modified polyester, the modified polyester is composed of polyester and aminoadipic acid gylcol ester, the aminoadipic acid gylcol ester is dispersed among molecular chains of the polyester, hydrogen-bond interaction exists between the aminoadipic acid gylcol ester and the molecular chains of the polyester, and the relative position of the aminoadipic acid gylcol ester and the molecular chains of the polyester is fixed; the free volume space among the molecular chains inside the fiber is increased by 20-40v / v% when the modified polyester industry yarns are at 100-150 DEG C, polyurethane can form a firm resinoid coating on the surface of the fabric layer when the modified polyester industry yarn is subjected to heat treatment process, and the polyurethane coated fabric and the polyurethane have good interface bonding effect; and the heavy-caliber conveyer belt is mainly used for delivering high pressure water.

Description

technical field [0001] The invention belongs to the technical field of polyester modification, and relates to a large-diameter conveyor belt and a preparation method thereof. Background technique [0002] Since its appearance, polyethylene terephthalate (PET) fiber has developed rapidly because of its excellent performance, and its output has become the crown of synthetic fibers in the world. Polyester fiber has a series of excellent properties such as high breaking strength and elastic modulus, moderate resilience, excellent heat setting, good heat resistance and light resistance, acid resistance, alkali resistance and corrosion resistance, and the fabric has the advantages of wrinkle resistance and good stiffness, so , Polyester fiber is widely used in clothing, industrial yarn and other fields. [0003] Polyester-TPU (thermoplastic polyurethane) coated fabric is a composite material made of polyester fabric as the base and TPU as the coating. Because of its advantages of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564B65G15/34D01F6/92D01F1/10C08G63/183C08G63/80C07C227/18C07C229/08D01D5/08D01D5/088D01D5/096D01D7/00D06B3/18D06B15/00D06M101/32
Inventor 蔡明建杨大矛王丽丽宋光坤范晓兵赵慧荣
Owner JIANGSU HENGLI CHEM FIBER
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