Preparation method of plasma assisted super-hydrophobic polyester fabric

A plasma and super-hydrophobic technology, applied in the direction of repelling fibers to liquids, ultrasonic/sonic fiber treatment, fiber types, etc., can solve the problems of difficult processing, great influence on fabric moisture permeability and hand feel, and expensive clothing. , to achieve good mechanical friction stability, easy continuous industrial production, and stable super-hydrophobic performance.

Active Publication Date: 2018-12-11
旷达纤维科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The superhydrophobic modification of polyester fabrics has always attracted the attention of many scholars at home and abroad. At present, there are mainly the following methods for fabric hydrophobic finishing: 1) film lamination, of which the most widely used is Polytetrafluoroethylene (PTFE) film lamination requires special equipment and technology, the product processing is difficult, the cost is high, the garment price is expensive, and the softness and drapability are poor; 2) Fluorocarbon padding method, resulting in Wastewater consumes a lot of energy, and some fluorinated organic substances have high bioaccumulation and various toxicity, such as PFOS; 3) Coating finishing is widely used and the process is simple, but it has a great impact on the moisture permeability and hand feeling of fabrics
Therefore, the traditional finishing method still has serious environmental pollution during the finishing process, and the superhydrophobic finishing effect has poor durability.
In particular, the finished fabric is subjected to external forces such as mechanical friction during use, and the low surface energy substances on the surface gradually decrease, resulting in poor durability of the superhydrophobic finishing effect.

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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  • Preparation method of plasma assisted super-hydrophobic polyester fabric
  • Preparation method of plasma assisted super-hydrophobic polyester fabric

Examples

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preparation example Construction

[0021] The invention provides a method for preparing plasma-assisted super-hydrophobic polyester fabric, which combines normal pressure dielectric barrier discharge plasma and a fluorosilane finishing agent to modify the super-hydrophobic properties of polyester fabrics. Atmospheric plasma treatment of polyester fabrics produces a large number of free radicals on the fiber surface, introduces active groups, is energy-saving and environmentally friendly, is easy to operate, and is conducive to continuous production. Fluorosilane finishing agent 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane is a bifunctional compound that is easy to hydrolyze under acidic conditions to release low-molecular alcohol, and then form active silanol, which can be combined with plasma The hydroxyl group and other oxygen-containing groups on the surface of the treated polyester fiber produce stable chemical bonds, which can give the polyester fabric extremely low surface energy and extremely strong and st...

Embodiment 1

[0035] In this embodiment, the plasma assisted superhydrophobic polyester fabric is prepared according to the following steps:

[0036] Wash and dry the surface of the polyester fabric at a temperature of 90°C. The cleaned polyester fabric is subjected to surface treatment in a dielectric barrier discharge atmospheric pressure plasma device, the plasma treatment atmosphere is Ar gas, the gas flow rate is 1L / min, the treatment power is 1KW, and the treatment time is 120s. The polyester fabric modified by normal pressure plasma is fully padded in the pre-hydrolyzed finishing solution, and the solution is prepared according to the bath ratio of 1:40. The finishing solution includes the following raw materials (by mass): fluorosilane finishing agent 1H, 1 part of 1H, 2H, 2H-perfluorooctyltriethoxysilane, 99 parts of absolute ethanol, 100 parts of deionized water, 1 part of acetic acid, of which fluorosilane is pre-hydrolyzed for 30 minutes. Two dips and two rolls, the padding pressu...

Embodiment 2

[0039] In this embodiment, the plasma assisted superhydrophobic polyester fabric is prepared according to the following steps:

[0040] The surface of the polyester fabric is washed and dried at a temperature of 95°C. The cleaned polyester fabric was subjected to surface treatment in a dielectric barrier discharge atmospheric pressure plasma device, the plasma treatment atmosphere was Ar gas, the gas flow rate was 1L / min, the treatment power was 1KW, and the treatment time was 90s. The polyester fabric modified by normal pressure plasma is fully padded in the pre-hydrolyzed finishing solution, and the solution is prepared according to the bath ratio of 1:40. The finishing solution includes the following raw materials (by mass): fluorosilane finishing agent 1H, 1 part of 1H, 2H, 2H-perfluorooctyl triethoxysilane, 99 parts of absolute ethanol, 100 parts of deionized water, 1 part of acetic acid, pre-hydrolysis of fluorosilane for 30 minutes. Two dips and two rolls, the padding pre...

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 discloses a preparation method of plasma assisted super-hydrophobic polyester fabric. The preparation method comprises the following steps: carrying out dielectric barrier discharge atmospheric plasma modification treatment on polyester fabric after washing and drying; fully dipping the polyester fabric in pre-hydrolyzed fluorosilane finishing liquor, and squeezing; pre-baking and baking the polyester fabric through a baking oven, thus obtaining a final finished product. The polyester fabric prepared by the invention is wide in application, an atmospheric plasma technology is green and environment-friendly, the finished fabric is good in super-hydrophobicity, very good mechanical friction resistance and stability can be obtained, the operation is simple, and continuous industrial production can be easily realized.

Description

Technical field [0001] The invention belongs to the technical field of textile material fiber surface modification, and relates to a preparation method of plasma-assisted superhydrophobic polyester fabric. Background technique [0002] As one of the three largest synthetic fibers in the world, polyester has simple synthetic processing technology, good physical and chemical properties, and low price. The product has the characteristics of strong and durable, easy to wash and dry, easy to care, etc., and its application prospects in production and life broad. Functional finishing of polyester fabrics, such as waterproof, antibacterial, anti-wrinkle, flame-retardant, and antistatic finishing, can improve product quality and increase product added value. Among them, the super-hydrophobic finishing of polyester fabrics has always received extensive attention, and its products are also widely used in industrial textiles, chef work clothes, vehicle interiors, and protective clothing. ...

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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IPC IPC(8): D06M10/02D06M13/513D06M101/32
CPCD06M10/025D06M13/513D06M2101/32D06M2200/12
Inventor 吴双全李雅任煜徐林丁志荣姚理荣张红阳蒋文雯
Owner 旷达纤维科技有限公司
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