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Super-hydrophobic cotton fiber textile and preparation method thereof

A technology for textiles and cotton fibers, applied in the field of super-hydrophobic cotton fiber textiles and their preparation, achieves the effects of mild reaction conditions and simple preparation steps

Inactive Publication Date: 2020-07-28
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 shortcoming that the existing superhydrophobic surface preparation method uses organic fluorine as raw material, and provides a kind of superhydrophobic cotton fiber textile and its preparation method

Method used

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  • Super-hydrophobic cotton fiber textile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of preparation method of superhydrophobic cotton fiber textile, preparation step is as follows:

[0034] 1) Arrange cotton fiber knitted fabric, cotton fiber woven fabric or cotton fiber non-woven fabric in a mixed acid solution, and carry out acid treatment at a temperature of 60°C for 300 minutes;

[0035] In the mixed acid solution, the concentration of hydrochloric acid is 0.1mol / L, the concentration of phosphoric acid is 3mol / L, and the concentration of acetic acid is 0.1mol / L;

[0036] 2) placing the cotton fiber textile obtained through the treatment in step 1) in diisocyanate, and reacting at 25° C., and the reaction time is 20 h;

[0037] 3) placing the cotton fiber textiles obtained through the treatment in step 2) in a solution of long-chain alkanes with active hydrogen, and reacting at a temperature of 20° C. for a reaction time of 10 hours to obtain superhydrophobic cotton fiber textiles;

[0038] The solution of long-chain alkanes with active hydro...

Embodiment 2

[0041] A kind of preparation method of superhydrophobic cotton fiber textile, preparation step is as follows:

[0042] 1) arrange cotton fiber knitted fabric, cotton fiber woven fabric or cotton fiber non-woven fabric in a mixed acid solution, and carry out acid treatment at a temperature of 100°C for 30 minutes;

[0043] In the mixed acid solution, the concentration of hydrochloric acid is 4mol / L, the concentration of phosphoric acid is 0.1mol / L, and the concentration of acetic acid is 3mol / L;

[0044] 2) Place the cotton fiber textile obtained in step 1) in isophorone diisocyanate, and react at 100° C., and the reaction time is 1 h;

[0045] 3) placing the cotton fiber textile obtained in step 2) in a solution of long-chain alkanes with active hydrogen, and reacting at a temperature of 120° C. for 1 hour to obtain a superhydrophobic cotton fiber textile;

[0046] The solution of long-chain alkanes with active hydrogen is heptadecylamine in toluene.

Embodiment 3

[0048] A kind of preparation method of superhydrophobic cotton fiber textile, preparation step is as follows:

[0049] 1) arrange the cotton fiber knitted fabric, cotton fiber woven fabric or cotton fiber non-woven fabric in the mixed acid solution, and carry out the acid treatment at a temperature of 80°C for 100 minutes;

[0050] In the mixed acid solution, the concentration of hydrochloric acid is 2mol / L, the concentration of phosphoric acid is 1mol / L, and the concentration of acetic acid is 2mol / L;

[0051] 2) Put the cotton fiber textile obtained in step 1) into 4,4'-dicyclohexylmethane diisocyanate, and react at 60°C for 10 hours;

[0052] 3) placing the cotton fiber textile obtained in step 2) in a solution of long-chain alkanes with active hydrogen, and reacting at a temperature of 70° C. for a reaction time of 6 hours to obtain a superhydrophobic cotton fiber textile;

[0053] The solution of long-chain alkanes with active hydrogen is the ether solution of octadecylami...

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Abstract

The invention discloses a super-hydrophobic cotton fiber textile and a preparation method thereof and belongs to the technical field of super-hydrophobic textiles. The preparation method of the super-hydrophobic cotton fiber textile comprises the following steps of treating fibers with a mixed acid to construct micro-nano coarse structure on the surfaces of the fibers by taking a cotton fiber fabric as a base material; and then covalently grafting long-chain alkane with low surface energy to the surfaces of the cotton fibers through reaction activity of isocyanate and active hydrogen radicalsby means of isocyanate radicals to obtain the super-hydrophobic cotton fiber fabric with stable property. The preparation method of the super-hydrophobic cotton fiber textile is simple in preparationstep and mild in reaction condition.

Description

technical field [0001] The invention belongs to the technical field of superhydrophobic textiles, in particular to superhydrophobic cotton fiber textiles 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, waterproof tents, advertising fabrics, etc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/13D06M11/70D06M13/188D06M13/425D06M101/06
CPCD06M11/13D06M11/70D06M13/188D06M13/425D06M2101/06D06M2200/12
Inventor 马兴元何远鑫郑四龙
Owner SHAANXI UNIV OF SCI & TECH