Preparation method of super-hydrophobic photocatalytic anti-ultraviolet textile

A technology for anti-ultraviolet and textiles, applied in textiles and papermaking, light-resistant fibers, and liquid-repellent fibers, etc., to achieve the effects of improving bonding fastness, reducing free energy, and enhancing durability and stability

Inactive Publication Date: 2018-11-20
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for preparing superhydrophobic photocatalyzed anti-ultraviolet textiles in order to overcome the defects in the above-mentioned prior art. 2 / TiO 2 Composite airgel particles combined with polysiloxane with excellent adhesion to obtain polysiloxane / SiO 2 / TiO 2 Composite material mixture, and under the action of ultrasonic cavitation assistance and baking, firmly construct organic-inorganic nanocomposite microscopic porous rough structure on the surface of textiles, and at the same time realize the multifunctionality of superhydrophobic photocatalysis and UV protection, and have durability, which can Keep the basic physical and mechanical properties of the fabric, such as soft feel, strength, whiteness, etc., without involving the problems in the application of fluorine-containing water-repellent finishing agents and organic ultraviolet shielding agents, low cost, safe and environmentally friendly, and greatly increase the added value of textiles And product grades, significantly broaden its application fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The specific surface area is 493.62m 2 / g SiO 2 / TiO 2 The dosage of composite aerogel particles is 2.6wt%, the dosage of hydroxyl-terminated polysiloxane is 2wt% and its cross-linking agent aminopropyltrimethoxysilane 0.2wt% is mixed with solvent isopropanol and magnetically stirred for 2h, at 25 Ultrasonic dispersion at ℃ for 20 min to obtain polysiloxane / SiO 2 / TiO 2 Composite material mixture. Impregnation of clean polyester fabric in polysiloxane / SiO under ultrasonic conditions 2 / TiO 2 The composite material was soaked in the mixed solution for 20 minutes, after two dipping and two rolling, the overage rate was 80%, pre-baked at 80°C for 4 minutes, and baked at 130°C for 30 minutes to obtain superhydrophobic photocatalytic UV-resistant textiles.

[0026] Use Kruss DSA30 type video contact angle measuring instrument to conduct contact angle test, the amount of water is 5 μL, the water droplets are in contact with the fabric for 60s, and the readings are taken...

Embodiment 2

[0028] The specific surface area is 498.37m 2 / g SiO 2 / TiO 2 The amount of composite aerogel particles is 4wt%, the amount of amino-terminated polysiloxane is 3wt% and its cross-linking agent aminoethyltrimethoxysilane 0.3wt% is mixed with solvent n-hexane and magnetically stirred for 1h at 35°C Ultrasonic dispersion for 15min to obtain polysiloxane / SiO 2 / TiO 2 Composite material mixture. Impregnation of clean cotton fabric in polysiloxane / SiO under ultrasonic conditions 2 / TiO 2 The composite material was placed in the mixed solution for 30 minutes, after two dips and two rollings, with a nip rate of 70%, pre-baking at 75°C for 5 minutes, and baking at 140°C for 15 minutes to obtain superhydrophobic photocatalytic UV-resistant textiles.

[0029] Use Kruss DSA30 type video contact angle measuring instrument to conduct contact angle test, the amount of water is 5 μL, the water droplets are in contact with the fabric for 60s, and the readings are taken. The same sample i...

Embodiment 3

[0031] The specific surface area is 496.72m 2 / g SiO 2 / TiO 2 The amount of composite aerogel particles is 6wt%, the amount of amino-terminated polysiloxane is 7wt% and its cross-linking agent aminoethyltrimethoxysilane 0.7wt% is mixed with solvent cyclohexanone and magnetically stirred for 2h, at 30 ℃ Under ultrasonic dispersion for 25min to obtain polysiloxane / SiO 2 / TiO 2 Composite material mixture. Impregnation of clean nylon fabric in polysiloxane / SiO under ultrasonic conditions 2 / TiO 2 The composite material was soaked in the mixed solution for 40 minutes, after two dipping and two rolling, the overage rate was 60%, pre-baking at 70 °C for 6 minutes, and baking at 150 °C for 10 minutes to obtain superhydrophobic photocatalytic UV-resistant textiles.

[0032] Use Kruss DSA30 type video contact angle measuring instrument to conduct contact angle test, the amount of water is 5 μL, the water droplets are in contact with the fabric for 60s, and the readings are taken. ...

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Abstract

The invention relates to a preparation method of a super-hydrophobic photocatalytic anti-ultraviolet textile. The preparation method comprises the following steps: mixing and stirring SiO2 / TiO2 composite aerogel particles, polysiloxane and a crosslinking agent thereof with a solvent, performing ultrasonic dispersion at 20-50 DEG C to obtain polysiloxane / SiO2 / TiO2 composite material mixed liquid, dipping a clean textile in the polysiloxane / SiO2 / TiO2 composite material mixed liquid under an ultrasonic condition, and padding, pre-baking and baking to obtain the super-hydrophobic photocatalytic anti-ultraviolet textile. Compared with the prior art, an organic-inorganic nano-composite micro-porous coarse structure is firmly constructed on the surface of the textile, the super-hydrophobic photocatalytic anti-ultraviolet versatility is realized at the same time, and the textile is endowed with durability, so that textile fabric can maintain soft handfeeling, strength, whiteness and other basic physical and mechanical properties.

Description

technical field [0001] The invention belongs to the field of textile functional finishing, and in particular relates to a preparation method of a super-hydrophobic photocatalytic anti-ultraviolet textile. Background technique [0002] With the rapid development of modern technology, people not only require beautiful textiles, but also require them to have multi-functionality such as safety and health care. Multi-functional textiles such as super-hydrophobicity, photocatalysis, and UV protection are increasingly popular. It has clearly become one of the important trends in the future development of the textile industry. Superhydrophobic textiles, that is, the contact angle of water droplets on the textile surface is greater than 150°, and have unique anti-fouling and self-cleaning properties. Numerous studies have shown that the combination of low surface energy materials and microscopic rough structures can achieve the preparation of superhydrophobic surfaces. . In recent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M10/10D06M10/06D06M11/46D06M11/79D06M15/643
CPCD06M10/06D06M10/10D06M11/46D06M11/79D06M15/643D06M2200/12D06M2200/25
Inventor 徐丽慧盛宇沈勇王黎明丁颖潘虹
Owner SHANGHAI UNIV OF ENG SCI
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