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Preparation method of icy composite polyester fiber

A polyester fiber and icy technology, which is applied in the field of fiber fabrics, can solve the problems of icy polyester lacking elasticity and thermal adhesion, limited application fields, and unsustainable effects, and achieves easy industrialization implementation, improved stability, and good The effect of the cooling effect

Active Publication Date: 2022-04-15
浙江正凯化纤有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Above-mentioned prior art all has some defects, or feel is too hard, or effect is not lasting, or spinnability is poor
This also greatly limits the field of application
Moreover, the ice-cold polyester developed by these technologies basically does not have elasticity and thermal bonding.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Preparation of thermoplastic polyurethane fiber-forming polymer

[0031] The raw materials were mixed at 70°C for 120-180min to prepare a slurry. The slurry was reacted at 265°C for 320min, and the water generated by the polycondensation reaction was removed by bubbling with high-purity nitrogen to obtain a prepolymer; the prepolymer , react at 275°C for 30min, the pressure is 1kpa absolute pressure; then react at 285°C for 10min, the pressure is 80pa absolute pressure, to obtain polyester diol; polyester diol and 4,4`-diphenyl Melt polymerization of methane diisocyanate, butanediol and ethanolamine at 140°C to obtain thermoplastic polyurethane fiber-forming polymer;

[0032] (2) Preparation of low melting point hydrophilic polyester fiber-forming polymer

[0033] Mix ethylene glycol, terephthalic acid, polyether glycol, adipic acid, and nano-titanium dioxide at 50-70°C for 120 minutes to prepare a slurry, in which the molar ratio of carboxyl groups to hydroxyl gro...

Embodiment 2

[0039] (1) Preparation of thermoplastic polyurethane fiber-forming polymer

[0040] The raw materials were mixed at 70°C for 120-180min to prepare a slurry. The slurry was reacted at 265°C for 320min, and the water generated by the polycondensation reaction was removed by bubbling with high-purity nitrogen to obtain a prepolymer; the prepolymer , react at 275°C for 30min, the pressure is 1kpa absolute pressure; then react at 285°C for 10min, the pressure is 80pa absolute pressure, to obtain polyester diol; polyester diol and 4,4`-diphenyl Melt polymerization of methane diisocyanate, butanediol and ethanolamine at 140°C to obtain thermoplastic polyurethane fiber-forming polymer;

[0041] (2) Preparation of low melting point hydrophilic polyester fiber-forming polymer

[0042]Mix ethylene glycol, terephthalic acid, polyether glycol, adipic acid, and nano-titanium dioxide at 50-70°C for 120 minutes to prepare a slurry, in which the molar ratio of carboxyl groups to hydroxyl grou...

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PUM

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Abstract

An icy composite polyester fiber is characterized in that the composite polyester fiber comprises the following components and their weight proportions: 35-40% of thermoplastic polyurethane; 58.98-64.49% of low-melting-point hydrophilic polyester; 0.5-1.0% of nano-titanium dioxide; 0.01-0.02% of graphene oxide; the invention also discloses a preparation method of ice-cold composite polyester fiber. The icy composite polyester fiber produced by the invention has outstanding functions, soft hand feeling and good spinnability.

Description

technical field [0001] The invention relates to a fiber fabric, in particular to a polyester fiber, and also relates to a preparation method of the polyester fiber. Background technique [0002] Polyester is used in many fields due to its excellent performance, but its hygroscopicity, thermal conductivity, and elasticity are not satisfactory, and cannot meet the comfort requirements of some fields. Improving the cooling performance and elasticity of polyester can provide consumers with more comfort. This has just produced the necessity of improving polyester icy performance and elasticity. [0003] At present, the more common method to improve the cooling performance of polyester is the application of cooling masterbatch, which mainly adopts the method of adding masterbatch and blending. For relevant patent documents, please refer to the Chinese invention patent application publication No. 201710962010.7 "Preparation method of polyester fiber modified by α-nano-alumina" (a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F8/14D01F8/16D01F1/10
CPCD01F8/14D01F8/16D01F1/10
Inventor 王小华汪春波王炳奎陆清峰
Owner 浙江正凯化纤有限公司