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Method for preparing super-hydrophobic textile from thiol-ene click chemistry-modified fiber

An olefin click, chemical modification technology, applied in the direction of wear-resistant fibers, textiles and papermaking, liquid-repellent fibers, etc., can solve the problems of poor durability, harsh equipment requirements, weak force, etc.

Inactive Publication Date: 2016-06-22
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The superhydrophobic textiles prepared by the above method have poor durability due to the weak force between the hydrophobic substance and the fiber, and the practical application is limited.
Li Jingye etc. used gamma ray radiation method to graft acrylate monomer to the surface of the fabric, and prepared wear-resistant, washable, and stable superhydrophobic textiles (Chinese patent CN102174737A, Chinese patent CN102277741A), but this method requires harsh equipment , and γ-ray radiation is harmful to operators

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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  • Method for preparing super-hydrophobic textile from thiol-ene click chemistry-modified fiber
  • Method for preparing super-hydrophobic textile from thiol-ene click chemistry-modified fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step 1: Alkali steaming polyester fabric: first, boil polyester fabric (25cm×35cm, 22±0.6g) in boiling water for 30min, then dry to remove impurities on the fiber surface; then, soak the washed fabric in a concentration of Take it out after 5 minutes in 340g / L sodium hydroxide solution, put it in the middle of double-layer polyethylene film, and bake it at 110°C for 3 minutes. Finally, take out the fabric, wash it fully, and dry it (25cm×35cm, 16±0.6g).

[0033] Step 2: Treat polyester fabric with mercaptosilane modified alkali: put the steamed polyester fabric into a dyeing cup containing 0.04mL 3-mercaptopropyltriethoxysilane, react at 70°C for 90min, take it out and place it at 80°C Bake for 1 hour.

[0034]Step 3: Polyester fabric modified by mercapto-olefin click chemistry hydrophobization: put the mercapto-modified polyester fabric into the The volume ratio of the amount of solid to the amount of solvent N,N-dimethylformamide is 3:100 in the Erlenmeyer flask. Af...

Embodiment 2

[0036] Step 1: Alkali steaming polyester fabric: first, boil polyester fabric (25cm×35cm, 22±0.6g) in boiling water for 30min, then dry to remove impurities on the fiber surface; then, soak the washed fabric in a concentration of Take it out after 5 minutes in 380g / L sodium hydroxide solution, put it in the middle of double-layer polyethylene film, and bake it at 110°C for 3 minutes. Finally, take out the fabric, wash it fully, and dry it at 80°C (25cm×35cm, 16±0.6g).

[0037] Step 2: Treat polyester fabric with mercaptosilane modified alkali: Put the steamed polyester fabric into a dyeing cup containing 0.1mL 3-mercaptopropyltriethoxysilane, react at 110°C for 90min, take it out and place it at 80°C Bake for 1 hour.

[0038] Step 3: Polyester fabric modified by mercapto-olefin click chemistry hydrophobization: put the mercapto-modified polyester fabric in the The volume ratio of the volume ratio of the amount of the body to the solvent N, N-dimethylformamide is 8:100. After...

Embodiment 3

[0040] Step 1: Alkali steaming polyester fabric: first, boil polyester fabric (25cm×35cm, 22±0.6g) in boiling water for 30min, then dry to remove impurities on the fiber surface; then, soak the washed fabric in a concentration of Take it out after 5 minutes in 400g / L sodium hydroxide solution, put it in the middle of double-layer polyethylene film, and bake it at 110°C for 3 minutes. Finally, take out the fabric, wash it fully, and dry it at 80°C (25cm×35cm, 16±0.6g).

[0041] Step 2: Treat polyester fabric with mercaptosilane modified alkali: Put the steamed polyester fabric into a dyeing cup containing 0.04-0.1mL 3-mercaptopropyltriethoxysilane, react at 90°C for 90min, take it out and put it in Bake at 80°C for 1 hour.

[0042] Step 3: Polyester fabric modified by mercapto-olefin click chemistry hydrophobization: put the mercapto-modified polyester fabric in the The volume ratio of the volume ratio of the amount of the body to the solvent N,N-dimethylformamide is 5:100. A...

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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Abstract

The invention relates to a preparation method of a functional textile, and belongs to the field of textile surface grafting modification. The method for preparing a super-hydrophobic textile from a thiol-ene click chemistry-modified fiber is characterized by comprising the steps that alkali liquor steaming treatment is performed on a polyester fiber, then mercaptosilane is fixed to the surface of the polyester fiber, finally a methacrylate monomer is grafted to the surface of the polyester through a thiol-ene click chemistry reaction to reduce the surface tension of the fiber, and then the super-hydrophobic polyester textile is obtained. The contact angle between the polyester textile prepared through the method and water drops is larger than 150 degrees, and the polyester textile is stable to acid, alkali, salt and solvent and capable of resisting friction and washing and has the very good hydrophobic stability.

Description

technical field [0001] The invention relates to a preparation method of functional textiles, in particular to a preparation method of superhydrophobic polyester textiles. Background technique [0002] Textiles are cheap, easy to obtain, easy to color, and can be produced on a large scale. Endowing textiles with superhydrophobicity can broaden their application fields, such as self-cleaning materials, waterproof materials, and oil-water separation materials. Superhydrophobic textiles have special wettability, that is, the contact angle of water droplets on the surface of the fabric is greater than 150°, and it is easy to roll on its surface. The water droplets will take away the dirt on the surface during the rolling process, which is the so-called "lotus leaf self-cleaning effect". Superhydrophobic polyester textiles not only have important applications in industrial, medical, and military products, but also are widely used in daily life, such as waterproof clothing, umbrel...

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): D06M11/38D06M13/513D06M14/32D06M101/32
CPCD06M11/38D06M13/513D06M14/32D06M2101/32D06M2200/12D06M2200/35
Inventor 薛朝华郭小静贾顺田
Owner SHAANXI UNIV OF SCI & TECH
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