Temperature sensitive type waterproof moisture-penetrating urethane resin and preparation method thereof

A polyurethane resin, waterproof and moisture-permeable technology, which is applied in textiles, papermaking, fiber processing, etc., can solve problems such as freezing to death, stuffy heat, and insufficient moisture permeability, and achieve increased temperature sensing function, improved comfort, and strong film feeling. Effect

Inactive Publication Date: 2010-12-15
高鼎精细化工(昆山)有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in the case of harsh external environment, such as poor warmth retention at low temperature and insufficient moisture permeability at high temperature
If you live in a high temperature state in summer, you will still feel stuffy because of insufficient moisture permeability; and if you live in the mountains for a long time in winter, because the moisture permeability makes the clothing insulation poor, you may freeze to death

Method used

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  • Temperature sensitive type waterproof moisture-penetrating urethane resin and preparation method thereof

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Embodiment Construction

[0036] The formula of the embodiment of the invention is referring to Table 1:

[0037] Table 1: (unit: each component accounts for raw material gross weight percent, %)

[0038]

[0039] The polyester polyol is butanediol adipate triol, so that the soft segment chains in the polyurethane molecule are relatively uniform and have strong physical properties, and the temperature-sensitive waterproof and moisture-permeable membrane produced is soft, with good physical properties and strong film feeling.

[0040] The polyether polyol is polyethylene glycol-2000 (PEG-2000). The hydrophilic group of polyethylene glycol provides polyurethane with hydrophilic groups to achieve the purpose of moisture permeability, and the polyethylene glycol is designed to adjust The degree of polymerization and content can achieve the purpose of high moisture permeability.

[0041] The butanediol is 1,4-butanediol (BDO), which is a chain extender.

[0042] The catalyst is a metal catalyst that do...

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PUM

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Abstract

The invention discloses a temperature sensitive type waterproof moisture-penetrating urethane resin and a preparation method thereof. Compared with a general waterproof moisture-penetrating urethane resin used in the market, the temperature sensitive type waterproof moisture-penetrating urethane resin increases a temperature sensitive function; the molecular arrangement mode of the urethane resin is controlled through special formula and process so that the urethane resin has higher response capacity on environmental temperature; when the environmental temperature is higher, the moisture-penetrating amount of the urethane resin is increased, heat rejection and perspiration elimination are accelerated so that people feel cool; when the environmental temperature is lower, moisture-penetrating property is lowered so as to play roles of wind stop, heat preservation and warm keeping, and moisture-penetrability and temperature regulation play a coordination role simultaneously, therefore a wearer can feel comfortable under the conditions of changeable environmental temperature or calorification and perspiration elimination of human bodies, and the like.

Description

technical field [0001] The invention relates to a polyurethane resin and a preparation method thereof, in particular to a temperature-sensitive waterproof and moisture-permeable polyurethane resin specially used for processing waterproof and moisture-permeable fabrics. Background technique [0002] In the past, fabrics had no waterproof and moisture-permeable function. In wet and cold weather, some clothing, such as down jackets and cold-proof clothing, had no waterproof function, and rain and snow eroded from the outside to the inside; some were waterproof but airtight, and the water vapor emitted by the body could not escape Going out, wet from the inside out, very uncomfortable. With the improvement of people's dressing requirements. The requirements for wearing comfort are getting higher and higher, and film composite processing moisture-permeable waterproof fabrics have been developed. And towards the development and development of light, weather-resistant clothing, s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/572D06M15/568C08G18/66C08G18/76
Inventor 许志明
Owner 高鼎精细化工(昆山)有限公司
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