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Self-roughened porous meshed super-hydrophobic polyester fabric and preparation method thereof

A polyester fabric, self-roughening technology, used in textiles, papermaking, fiber processing, etc., to achieve good low surface energy properties, good abrasion resistance and solvent resistance stability.

Inactive Publication Date: 2015-07-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most superhydrophobic surfaces prepared by phase separation method are on the surface of hard substrates, and there are few reports on soft substrates such as textiles.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Self-roughened porous meshed super-hydrophobic polyester fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Preparation of polyester fabric by phase separation method: first the polyester fabric is padded with ethanol solution (mass fraction 99.7%), then padded in mixed solution A, mixed solution A uses tetrahydrofuran as a solvent, and PDMS and PVC are dissolved in the solvent. Among them, the main agent of PDMS is 0.2g, the curing agent is 0.02g, the PVC is 0.2g, and the tetrahydrofuran is 19.58g. After drying at 40°C for 2 hours, the surface contact angle of the polyester fabric obtained by this method is 165.7°, and the static contact angles of the fabric with water droplets after washing and friction are 160.1° and 158.3° respectively.

Embodiment 2

[0019] Prepare polyester fabric by phase separation method: first the polyester fabric is padded with ethanol solution (mass fraction 99.7%), then padded in mixed solution A, mixed solution A is solvent with tetrahydrofuran, and PDMS and PVC are dissolved in this solvent, wherein , the main agent of PDMS is 0.2g, the curing agent is 0.02g, PVC is 0.1g, and tetrahydrofuran is 19.68g. After drying at 40°C for 2 hours, the surface contact angle of the obtained polyester fabric was 163.5°, and after the fabric was subjected to mechanical forces such as washing and friction, its static contact angles with water droplets were 159.6° and 156.4°, respectively.

Embodiment 3

[0021] Prepare polyester fabric by phase separation method: first the polyester fabric is padded with ethanol solution (mass fraction 99.7%), then padded in mixed solution A, mixed solution A is solvent with tetrahydrofuran, and PDMS and PVC are dissolved in this solvent, wherein , the main agent of PDMS is 0.2g, the curing agent is 0.025g, PVC is 0.05g, and tetrahydrofuran is 19.725g. After drying at 40°C for 2 hours, the surface contact angle of the obtained polyester fabric was 160.5°, and after the fabric was subjected to mechanical forces such as washing and friction, its static contact angles with water droplets were 157.6° and 154°, respectively.

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Abstract

The invention provides self-roughened porous meshed super-hydrophobic polyester fabric and a preparation method thereof. Firstly, the fabric is soaked with an ethyl alcohol, then soaked with a polydimethylsiloxane / polyvinyl chloride tetrahydrofuran mixture solution and dried for 2h at the temperature of 40 DEG C, and then the super-hydrophobic polyester fabric full of roughened porous meshed structure on the surface of fiber can be obtained. A static contact angle between the surface of the polyester fabric prepared with the method and a water drop is larger than 150 degrees, and the fabric has good super-hydrophobic performance, wear resistance, solvent resistance and stability.

Description

【Technical field】 [0001] The invention relates to a preparation method of a super-hydrophobic surface, in particular to a self-roughening porous net-like super-hydrophobic polyester fabric and a preparation method thereof. 【Background technique】 [0002] In recent years, superhydrophobic surfaces have attracted extensive attention from researchers due to their special wettability. Surface wettability is closely related to many physicochemical processes, such as adsorption, lubrication, adhesion, dispersion, and friction. Surface wettability has important applications in many fields such as catalysis, oil extraction, mineral processing, lubrication, coating, waterproofing and biomedical materials. Therefore, the research and development of materials with special surface wettability is of great significance to expand the application range of materials and improve the application performance of materials. [0003] The preparation methods of traditional superhydrophobic surfac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/144D06M15/643D06M15/248D06M101/32
Inventor 薛朝华李亚茹贾顺田
Owner SHAANXI UNIV OF SCI & TECH
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