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Two-component moisture-absorbing and sweat-dissipating polyurethane elastic fiber

A polyurethane elastic, moisture-absorbing and sweat-wicking technology, applied in the field of moisture-absorbing and sweat-wicking polyurethane elastic fiber, polyurethane elastic fiber, can solve the problems of reducing molecular chain regularity, high temperature resistance performance, inconvenient adjustment, etc., to achieve excellent sweat-wicking properties , stable properties, good hygroscopicity

Inactive Publication Date: 2019-05-24
LIANYUNGANG DUZHONG NEW AOSHEN SPANDEX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The moisture-absorbing and fast-drying polyurethane elastic fiber prepared by this method, because the main chain structure contains two or three glycols, reduces the overall regularity of the molecular chain, and its high temperature resistance will decrease. In addition, it is inconvenient to adjust the polyepoxide Ratio of Ethane and / or Propylene Oxide Based Fiber-Forming Polymer to Polytetramethylene Ether Glycol Based Fiber-Forming Polymer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, a two-component moisture-absorbing and sweat-wicking polyurethane elastic fiber, the components of the moisture-wicking and sweat-wicking polyurethane elastic fiber have the following mass percentages:

[0035] Skin layer component A 25%; core layer component B 75%;

[0036] Described cortex component A has following composition and mass percent:

[0037] Polyethylene Glycol Based Fiber-Forming Polymer 90%

[0038] Surfactant 3%

[0039] Microporous additive 3%

[0040] Other additives are antioxidants, lubricants, anti-yellowing agents and matting agents, each with a content of 1%;

[0041] The core layer component B is polyurethane elastic fiber.

[0042] Its preparation method steps are as follows:

[0043] (1) Mix 4,4-diphenylmethane diisocyanate and polyethylene glycol at 47°C for 15 minutes, and react at 70-75°C for 60 minutes to prepare polyethylene glycol-based prepolymer, 4,4-diphenyl The mol ratio of methyl methane diisocyanate and polyethy...

Embodiment 2

[0050] Embodiment 2, a two-component moisture absorption and perspiration polyurethane elastic fiber, the components of the moisture absorption and perspiration polyurethane elastic fiber have the following mass percentages:

[0051] Skin layer component A 30%; core layer component B 70%;

[0052] Described cortex component A has following composition and mass percent:

[0053] Polyethylene glycol-based fiber-forming polymer 97%

[0054] Surfactant 0.5%

[0055] Microporous additive 1%

[0056] Other additives, including 0.1% antioxidant, 0.5% lubricant, 0.3% anti-yellowing agent and 0.6% matting agent;

[0057] The core layer component B is polyurethane elastic fiber.

[0058] Its preparation method steps are as follows:

[0059] (1) Mix 4,4-diphenylmethane diisocyanate and polyethylene glycol at 45°C for 18 minutes, and react at 75-80°C for 70 minutes to prepare polyethylene glycol-based prepolymer, 4,4-diphenyl The mol ratio of methyl methane diisocyanate and polyethyle...

Embodiment 3

[0066] Embodiment 3, a two-component moisture absorption and perspiration polyurethane elastic fiber, the components of the moisture absorption and perspiration polyurethane elastic fiber have the following mass percentages:

[0067] Skin layer component A 20%; core layer component B 80%;

[0068] Described cortex component A has following composition and mass percent:

[0069] Polyethylene glycol based fiber-forming polymer 95.5%

[0070] Surfactant 1%

[0071] Microporous additive 2%

[0072] Other additives: 1% antioxidant, 0.5% lubricant;

[0073] The core layer component B is polyurethane elastic fiber.

[0074] Its preparation method steps are as follows:

[0075] (1) Mix 4,4-diphenylmethane diisocyanate and polyethylene glycol at 40°C for 25 minutes, and react at 85-90°C for 45 minutes to prepare polyethylene glycol-based prepolymer, 4,4-diphenyl The mol ratio of methyl methane diisocyanate and polyethylene glycol is 1.85:1, and the molecular weight of polyethylen...

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Abstract

The invention relates to a two-component moisture-absorbing and sweat-dissipating polyurethane elastic fiber and belongs to the field of high-polymer materials. The two-component moisture-absorbing and sweat-dissipating polyurethane elastic fiber is composed of, by weight percentage, 10-35% of a skin component A and 65-90% of a core component B, wherein the skin component A is composed of raw materials including, by weight percentage, 90-97% of polyethylene glycol-based fiber-forming polymer, 0.5-3% of surfactant, 0.5-5% of microporous additives and around 0.1-1% of one or more selected from antioxygen agent, lubricant, anti-yellow agent and flatting agent; the core component B is polyurethane elastic fiber. The invention also discloses a preparation method of the two-component moisture-absorbing and sweat-dissipating polyurethane elastic fiber. The two-component moisture-absorbing and sweat-dissipating polyurethane elastic fiber has the advantages of stable property, good moisture absorbency and excellent sweat dissipation and solves the technical problem that fabrics produced from the polyurethane elastic fiber in the prior art are poor in stability and sweat-dissipating performance.

Description

technical field [0001] The invention belongs to the field of polymer materials and relates to a polyurethane elastic fiber, in particular to a two-component moisture-absorbing and sweat-wicking polyurethane elastic fiber. Background technique [0002] Polyurethane elastic fiber is a synthetic fiber with polyurethane as the main component. Usually, the "two-step method" is used to prepare the polymer spinning stock solution, and then the polyurethane elastic fiber is produced by spinning equipment. The preparation process of the spinning stock solution is to prepolymerize polyether or polyester diol with 4,4-diphenylmethane diisocyanate, and then use a mixture of diamine and monoamine for chain growth and chain termination. Finally, additives such as antioxidant and lubricant are added, and the spinning dope is obtained after stirring and aging. Due to the hydrophobic characteristics of its raw materials, the water absorption of polyurethane elastic fibers is poor. When wea...

Claims

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Application Information

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IPC IPC(8): D01F8/16D01F1/10D01D5/34D01D5/247
Inventor 张斌王宝总张磊曾登高久林李苏王建伟李春花
Owner LIANYUNGANG DUZHONG NEW AOSHEN SPANDEX
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