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Method for modifying surface of polyester through combination of ultrasound and enzyme

A surface modification and ultrasonic technology, applied in the direction of enzyme/microorganism biochemical treatment, physical treatment, fiber treatment, etc., can solve the problem of poor hydrophilic modification effect of polyester fiber enzymatic method, shorten the reaction time and increase the release amount. , the release effect is obvious

Active Publication Date: 2021-10-19
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the basis of the existing polyester fiber enzymatic hydrophilic modification, the present invention conducts research on the poor effect of polyester fiber enzymatic hydrophilic modification, and uses ultrasonic waves to cooperate with cutinase to further improve the effect of polyester surface hydrophilic modification

Method used

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  • Method for modifying surface of polyester through combination of ultrasound and enzyme
  • Method for modifying surface of polyester through combination of ultrasound and enzyme
  • Method for modifying surface of polyester through combination of ultrasound and enzyme

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Embodiment 1-Ultrasonic combined cutinase one-step treatment polyester fabric

[0070] A method for modifying the surface of polyester by ultrasonic combined with enzyme, comprising the steps of:

[0071] (1) Ultrasound combined with enzyme treatment: place the refined polyester fabric (0.4g) in Humicola insolens cutinase solution (Tris-HCl buffer solution with a pH of 8.0 5mmol / L and a concentration of 100U / mL with an activity of 800-900U / mL of Humicola insolens cutinase), the bath ratio is 1:40, the reaction system is sealed with a parafilm, and treated with an ultrasonic water bath cleaner for 2 hours, and the ultrasonic temperature of the water bath is controlled at 60°C;

[0072] (2) Shaking table treatment: transfer the reaction system obtained in step (1) to a shaking table (60° C., 150 rpm) to continue the reaction for 24 hours, and take out the polyester fabric after the reaction;

[0073] (3) Post-treatment: The polyester fabric obtained in step (2) was firs...

Embodiment 2

[0089] Embodiment 2 Ultrasound+Cutinase, Ultrasonic Treatment, Cutinase Treatment Comparative Research

Embodiment 2-1

[0090] Example 2-1: A method for modifying the surface of polyester with ultrasound combined with enzymes. Referring to Example 1, the only difference is that (2) the shaker treatment step is omitted, and the polyester fabric obtained in step (1) is directly subjected to the step (3) After-treatment, sample 4 was prepared: polyester filament fabric treated with ultrasound+cutinase.

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Abstract

The invention relates to the technical field of polyester surface modification, in particular to a method for modifying the surface of polyester through ultrasound and enzyme. The method for modifying the surface of the polyester through combination of the ultrasound and the enzyme comprises the following steps that refined polyester fabric is put into a cutinase solution, a reaction system is sealed, and water bath ultrasonic treatment is carried out; the obtained reaction system is transferred to a shaking table for continuous reaction, and the polyester fabric is taken out after the reaction is finished; and the obtained polyester fabric is washed and dryed to obtain hydrophilic modified polyester fabric. The method for modifying the surface of the polyester through combination of the ultrasound and the enzyme is a biological method for hydrophilic modification of the surface of the polyester, the treatment conditions are mild, compared with a single cutinase modification method in the prior art, the reaction rate is remarkably increased, the reaction time is greatly shortened, the modification cost is saved, and the modification process is simple and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of polyester surface modification, in particular to a method for modifying the surface of polyester with ultrasound combined with enzymes. Background technique [0002] Polyester fiber is currently one of the largest and most widely used synthetic fibers, and its proportion in the total output of chemical fibers has remained above 80% for a long time. This is because polyester fiber has many excellent properties such as high strength, stretch resistance, wrinkle resistance and wear resistance, and machine washability. However, due to its low moisture regain (only 0.4% under standard atmospheric pressure), polyester fabrics are hydrophilic and breathable. Sex, dyeability, antistatic properties are poor. [0003] At present, surface modification technologies such as physical coating, plasma treatment, polymer grafting, and chemical treatment are usually used to improve the hydrophilicity of polyester fabrics....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M16/00D06M10/04D06M101/32
CPCD06M16/003D06M10/04D06M2101/32
Inventor 傅佳佳王艳萍韩瑞娟高卫东王鸿博
Owner JIANGNAN UNIV
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