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Super-hydrophobic figured island type polyester superfine fiber non-woven fabric and preparation method thereof

A polyester microfiber, nonwoven technology, applied in fiber processing, fiber types, textiles and papermaking, etc., can solve the problems of unstable superhydrophobicity and achieve mild conditions, simple process and stable effect.

Pending Publication Date: 2020-06-26
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of the existing superhydrophobic surface preparation method using organic fluorine as raw material and the unstable superhydrophobic performance of the existing superhydrophobic fabrics, to provide a superhydrophobic island-fixed polyester superfine fiber nonwoven fabric and its preparation method

Method used

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  • Super-hydrophobic figured island type polyester superfine fiber non-woven fabric and preparation method thereof
  • Super-hydrophobic figured island type polyester superfine fiber non-woven fabric and preparation method thereof
  • Super-hydrophobic figured island type polyester superfine fiber non-woven fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for preparing a superhydrophobic island-fixed polyester superfine fiber nonwoven fabric, the preparation steps are as follows:

[0044] 1) The island-fixed polyester fiber is made into a non-woven fabric of the island-fixed polyester fiber by the acupuncture method, and the non-woven fabric of the island-fixed polyester fiber is arranged in a mixed solution, and treated at 60°C for 200 minutes to complete the first alkali weight reduction treatment;

[0045] Wherein, in the mixed solution, the concentration of sodium hydroxide is 5g / L, the concentration of potassium hydroxide is 20g / L, and the concentration of triethylamine is 1g / L;

[0046] 2) Arrange the island-type polyester microfiber nonwovens that have completed the first alkali reduction treatment in the mixed solution, and complete the second alkali reduction treatment at 60°C with a reaction time of 300 minutes;

[0047] In the mixed solution, the concentration of sodium hydroxide is 5g / L, and the conc...

Embodiment 2

[0056] A method for preparing a superhydrophobic island-fixed polyester superfine fiber nonwoven fabric, the preparation steps are as follows:

[0057] 1) The island-fixed polyester fiber is made into a fixed-island polyester fiber nonwoven fabric by the acupuncture method, and the island-fixed polyester fiber nonwoven is placed in a mixed solution and treated at 100°C for 20 minutes to complete the first alkali reduction treatment;

[0058] Wherein, in the mixed solution, the concentration of sodium hydroxide is 50g / L, the concentration of potassium hydroxide is 5g / L, and the concentration of triethylamine is 10g / L;

[0059] 2) Arrange the island-type polyester microfiber nonwovens that have completed the first alkali reduction treatment in the mixed solution, and complete the second alkali reduction treatment at 100°C with a reaction time of 30 minutes;

[0060] In the mixed solution, the concentration of potassium hydroxide is 500g / L, and the concentration of ethylenediamin...

Embodiment 3

[0065] A method for preparing a superhydrophobic island-fixed polyester superfine fiber nonwoven fabric, the preparation steps are as follows:

[0066] 1) The island-fixed polyester fiber is made into a non-woven fabric of the island-fixed polyester fiber by the acupuncture method, and the non-woven fabric of the island-fixed polyester fiber is arranged in a mixed solution and treated at 80°C for 150 minutes to complete the first alkali reduction treatment;

[0067] Wherein, in the mixed solution, the concentration of sodium hydroxide is 25g / L, the concentration of potassium hydroxide is 10g / L, and the concentration of triethylamine is 5g / L;

[0068] 2) Arrange the island-type polyester microfiber nonwovens that have completed the first alkali reduction treatment in the mixed solution, and complete the second alkali reduction treatment at 80°C with a reaction time of 100 minutes;

[0069] In the mixed solution, the concentration of sodium hydroxide is 100g / L, and the concentra...

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Abstract

The present invention discloses a super-hydrophobic figured island type polyester superfine fiber non-woven fabric and a preparation method thereof, and belongs to the technical field of super-hydrophobic textiles. The preparation method comprises the steps of performing alkali decrement treatment by taking a figured island type polyester fiber non-woven fabric as a base material, converting polyester fibers into polyester superfine fibers, and then performing alkali decrement on the superfine fibers to expose more hydroxyl and carboxyl groups; and covalently grafting long-chain alkane with low surface energy to the surfaces of the polyester fibers through the reactivity of isocyanate and active hydrogen groups by using isocyanate groups so as to obtain the super-hydrophobic polyester superfine fiber non-woven fabric with the stable property. The preparation method has the advantages of being simple in process, mild in condition, free of fluorine substances as raw materials, economicaland environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic textiles, in particular to a superhydrophobic island-fixed polyester superfine fiber nonwoven fabric and a preparation method thereof. Background technique [0002] The superhydrophobic surface is mainly that water droplets form a contact angle of more than 150° on the surface and a rolling angle of less than 10°. Due to its excellent self-cleaning ability and good hydrophobicity, superhydrophobic surfaces have a wide range of use values, and are widely used in many fields such as oil-water separation, anti-icing, and metal anti-corrosion. [0003] The preparation of super-hydrophobic surface on textiles can improve the application value of textiles, enhance the grade and added value of textiles. Textiles with super-hydrophobic surfaces have important applications in industrial and military products, and are also widely used in daily life. Such as "waterproof clothing, umbrellas, waterpr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/395D06M13/463D06M13/328D06M11/38D06M13/07D06M13/144D06M13/165D06M13/332D06M13/188D06M13/08D06M101/32
CPCD06M13/395D06M13/463D06M13/328D06M11/38D06M13/07D06M13/144D06M13/165D06M13/332D06M13/188D06M13/08D06M2101/32D06M2200/12
Inventor 马兴元郑四龙何远鑫
Owner SHAANXI UNIV OF SCI & TECH