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Simple and easy preparation method for super-hydrophobic fiber and textile and application thereof

A super-hydrophobic and fiber-based technology, which is applied in fiber processing, textiles and papermaking, etc., can solve the problems of high cost, harsh experimental conditions, and difficulty in large-scale production, and achieves low application difficulty, improved surface stability, and good super-hydrophobic performance Effect

Inactive Publication Date: 2011-08-17
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem: the purpose of this invention is to provide a kind of preparation method of superhydrophobic fiber, fabric, overcome many shortcomings such as harsh experimental conditions required by traditional methods, high cost, difficult to be used in large-scale production in industry, etc., with simple and easy The preparation method solves the above technical problems

Method used

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  • Simple and easy preparation method for super-hydrophobic fiber and textile and application thereof
  • Simple and easy preparation method for super-hydrophobic fiber and textile and application thereof
  • Simple and easy preparation method for super-hydrophobic fiber and textile and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Material pretreatment: After cleaning the fibers and fabrics with water or ethanol or acetone, dry them for use;

[0028] Isocyanate modification: place clean and dry fibers and fabrics in 1 wt% isocyanate solution (such as ethyl acetate solution of toluene-2,4-diisocyanate), N 2 Under protection, react in a water bath or an oil bath at 60-80°C for 1 hour, take it out, and wash with a solvent (such as ethyl acetate);

[0029] Low surface energy modification: place the fiber and fabric modified by isocyanate in 1wt% low surface energy substance solution (such as the ethyl acetate solution of hydroxy silicone oil), in N 2 Under protection, react in a water bath or an oil bath at 60-80°C for 1 hour, take it out, wash it with a solvent (such as ethyl acetate, ethanol), and dry it in vacuum at 50°C for 2 hours.

Embodiment 2

[0031] Material pretreatment: After cleaning the fibers and fabrics with water or ethanol or acetone, dry them for use;

[0032] Preparation of isocyanate-terminated low surface energy substances: such as the preparation of isocyanate-terminated silicone oil, adding hydroxyl silicone oil and toluene-2,4-diisocyanate to ethyl acetate solution, controlling the molar ratio of isocyanate to hydroxyl to 2: 1, N 2 Under protection, react in a water bath or an oil bath at 60-80°C for 1 hour, and set aside;

[0033] Surface treatment of materials: put fibers and fabrics in ethyl acetate solution of isocyanate-terminated silicone oil, N 2 Under protection, react in a water bath or an oil bath at 60-80°C for 1 hour, take it out, wash it with a solvent (such as ethyl acetate, ethanol), and dry it in vacuum at 50°C for 2 hours.

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Abstract

The invention relates to a simple and easy preparation method for super-hydrophobic fiber and textile with high contact angle and low rolling angle and application thereof. Surface chemical modification is directly carried out on intrinsic coarse structures on the surface of the fiber and textile so as to prepare a fiber product with super-hydrophobic performance; the method comprises the following steps of: firstly, cleanly washing materials, then carrying out isocyanate modification on the material, and finally modifying low surface energy material. The raw material is cheap and is easily available; reaction conditions are relatively mild; the operation is simple; and the requirement on the device is low. The obtain product has good super-hydrophobic performance; the contact angle of 10microliter of water is 156 degrees; and the product has wide application in fields of self-cleaning fibers and textiles.

Description

technical field [0001] The invention belongs to the processing field of functional materials, and in particular relates to a simple preparation method of superhydrophobic fibers and fabrics with high contact angle and low rolling angle, and also relates to the application of the superhydrophobic fibers and fabrics. Background technique [0002] A superhydrophobic surface refers to a surface with a water contact angle greater than 150° and a rolling angle less than 10°. The study of constructing superhydrophobic surfaces imitating superhydrophobic phenomena in nature (such as the surface of lotus leaves, insect wings, petals, etc.) has important practical application value in the field of self-cleaning. There are two main factors affecting the wettability of solid surfaces: one is surface free energy, and the other is surface microstructure. At present, the methods for preparing superhydrophobic surfaces mainly include sol-gel method, plasma treatment method, heterogeneous n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564
Inventor 徐伟箭潘帅军熊远钦郭瑞彭锦阳
Owner HUNAN UNIV
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