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Waterproof moisture-penetrable antibacterial anti-ultraviolet waterborne polyurethane material and preparation method thereof

A water-based polyurethane, waterproof and moisture-permeable technology, applied in fiber types, textiles and papermaking, fiber treatment, etc., can solve the problems of single function, inability to provide antibacterial and anti-ultraviolet, etc., to improve uniform dispersion, good waterproof and moisture-permeable performance, Safe to use

Active Publication Date: 2015-06-24
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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  • Waterproof moisture-penetrable antibacterial anti-ultraviolet waterborne polyurethane material and preparation method thereof
  • Waterproof moisture-penetrable antibacterial anti-ultraviolet waterborne polyurethane material and preparation method thereof

Examples

Experimental program
Comparison scheme
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 invention provides a waterproof moisture-penetrable antibacterial anti-ultraviolet waterborne polyurethane material for dry method coating finishing of cotton and terylene textiles and a preparation method of the waterproof moisture-penetrable antibacterial anti-ultraviolet waterborne polyurethane material. The material is obtained by blending waterproof moisture-penetrable waterborne polyurethane resin with silver-loaded nano titanium dioxide accounting for 0.5wt%-10wt% of the resin, a silane coupling agent accounting for 0.05wt%-1wt% of the resin, anhydrous ethanol accounting for 5wt%-40wt% of the resin, a curing agent accounting for 3wt%-10wt% of the resin, a thickening agent accounting for 1wt%-5wt% of the resin and a wetting agent accounting for 0.1wt%-1wt% of the resin. The highly moisture-penetrable antibacterial anti-ultraviolet waterborne polyurethane material provided by the invention is finished into a textile, and an obtained coated textile is good in waterproof moisture-penetrability and has antibacterial, anti-ultraviolet and other functions at the same time.

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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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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