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A waterproof, moisture-permeable, antibacterial, anti-ultraviolet water-based polyurethane material and preparation method thereof

A water-based polyurethane, waterproof and moisture-permeable technology, used in textiles and papermaking, fiber processing, plant fibers, etc., can solve problems such as single function, inability to provide antibacterial and anti-ultraviolet, and achieve improved uniform dispersion, good waterproof and moisture-permeable performance, The effect of improving mechanical properties

Active Publication Date: 2017-06-20
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 103910969A discloses a waterproof and breathable polyurethane film and its preparation method. Although the polyurethane film prepared by this patent has high moisture permeability, its function is single and cannot provide antibacterial and anti-ultraviolet functions

Method used

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  • A waterproof, moisture-permeable, antibacterial, anti-ultraviolet water-based polyurethane material and preparation method thereof
  • A waterproof, moisture-permeable, antibacterial, anti-ultraviolet water-based polyurethane material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] At 25°C, 21.3g of polyethylene glycol with a molecular weight of 1000, 49.63g of polyethylene glycol with a molecular weight of 2000, 61.45g of polytetrahydrofuran diol with a molecular weight of 2000, 6g of dimethylolbutyric acid, and 1.67g of 1, Add 4-butanediol and 60g of isophorone diisocyanate into the reaction kettle at the same time, raise the temperature to 60°C, and react for 9 hours to obtain a polyurethane prepolymer terminated with isocyanate groups; cool down the polyurethane prepolymer to 20°C , and add 40g of butanone to dilute, then add 4.10g of triethylamine to carry out neutralization reaction for 0.5h, and obtain a neutralized mixed solution, add 470g of deionized water to the neutralized mixed solution under high-speed stirring, emulsify for 0.5h, and then add 4.87g of ethylenediamine was subjected to a post-chain extension reaction for 0.5h to obtain a water-based polyurethane emulsion. The emulsion was distilled at 40°C to remove butanone under redu...

Embodiment 2

[0028] At 25°C, 21.2g of polyethylene glycol with a molecular weight of 1000, 49.37g of polyethylene glycol with a molecular weight of 2000, 61.13g of polytetrahydrofuran diol with a molecular weight of 2000, 6g of dimethylolbutyric acid, and 2.32g of 1, Add 4-butanediol and 60g of isophorone diisocyanate into the reaction kettle at the same time, raise the temperature to 70°C, and react for 8 hours to obtain a polyurethane prepolymer terminated with isocyanate groups; cool the polyurethane prepolymer to 25°C , and add 45g methyl ethyl ketone to dilute, then add 1.42g ammonia water to carry out neutralization reaction for 40min, and obtain a neutralized mixed solution, add 500g deionized water to the neutralized mixed solution under high-speed stirring, emulsify for 40min, and then add 13.06g isofor Alone diamine was subjected to post-chain extension reaction for 40 minutes to obtain a water-based polyurethane emulsion. The emulsion was distilled off under reduced pressure to r...

Embodiment 3

[0030] At 25°C, 20.9g of polyethylene glycol with a molecular weight of 1000, 48.77g of polyethylene glycol with a molecular weight of 2000, 60.38g of polytetrahydrofuran diol with a molecular weight of 2000, 6g of dimethylolbutyric acid, and 3.91g of 1, Add 4-butanediol and 60g of isophorone diisocyanate into the reaction kettle at the same time, raise the temperature to 80°C, and react for 7 hours to obtain a polyurethane prepolymer terminated with isocyanate groups; cool the polyurethane prepolymer to 30°C , and add 50g butanone to dilute, then add 3.69g triethylamine to carry out neutralization reaction for 35min to obtain a neutralized mixed solution, add 515g deionized water to the neutralized mixed solution under high-speed stirring, emulsify for 35min, then add 6.88g Diethylenetriamine was subjected to a post-chain extension reaction for 35 minutes to obtain a water-based polyurethane emulsion. The emulsion was distilled off under reduced pressure to remove butanone at ...

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Abstract

The present invention provides a waterproof, moisture-permeable, anti-bacterial and anti-ultraviolet water-based polyurethane material used in the dry coating finishing of cotton and polyester textiles and a preparation method thereof. ~10wt% silver-loaded nano-titanium dioxide, 0.05wt%~1wt% silane coupling agent of resin mass, 5wt%~40wt% absolute ethanol of resin mass, 3wt%~10wt% curing agent of resin mass, 1wt% resin mass ~5wt% thickener and 0.1wt%~1wt% wetting agent by resin mass are mixed. The high-moisture-permeable antibacterial and anti-ultraviolet water-based polyurethane material of the present invention is finished into the fabric, and the obtained coated fabric has not only good waterproof and moisture-permeable functions, but also antibacterial and anti-ultraviolet functions.

Description

technical field [0001] The invention relates to a water-based polyurethane emulsion in the technical field of textile chemical industry and a preparation method thereof, in particular to a waterproof, moisture-permeable, antibacterial, anti-ultraviolet water-based polyurethane material and a preparation method thereof. Background technique [0002] Early polyurethane-coated fabrics generally have good waterproof effect, but poor moisture permeability. When the human body wears this type of clothing during strenuous exercise, a large amount of sweat cannot be discharged in the form of steam, and condensed water droplets will form inside the clothing, making people feel sticky. Wet and uncomfortable. Waterproof and moisture-permeable means that polymer materials do not allow liquids such as water droplets to pass through, but can ensure the free passage of water vapor. Water-based polyurethane has become an important development direction in the field of polyurethane waterpro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/568D06M11/83D06M11/46D06M13/513D06M15/263D06M15/647C08G18/66C08G18/48C08G18/34C08G18/32C08G18/12C08G18/08D06M101/06D06M101/32
Inventor 周钰明张路萍戴淄岳吕华波江平
Owner SOUTHEAST UNIV
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