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A kind of preparation method of plasma-assisted superhydrophobic polyester fabric

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

Active Publication Date: 2020-06-16
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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  • A kind of preparation method of plasma-assisted superhydrophobic polyester fabric
  • A kind of preparation method of plasma-assisted superhydrophobic polyester fabric

Examples

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preparation example Construction

[0021] The invention provides a method for preparing a plasma-assisted superhydrophobic polyester fabric, which combines normal-pressure dielectric barrier discharge plasma and a fluorosilane finishing agent to modify the superhydrophobic performance of the polyester fabric. Atmospheric pressure plasma treatment of polyester fabrics generates a large number of free radicals on the surface of the fibers and introduces active groups. It is energy-saving, environmentally friendly, and easy to operate, which is conducive to the realization of 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 alcohols, thereby forming active silanols, which can be combined with plasma Oxygen-containing groups such as hydroxyl groups on the surface of the treated polyester fibers produce stable chemical bonds, which can endow polyester fabrics with extre...

Embodiment 1

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

[0036] The surface of the polyester fabric is cleaned and dried at a drying temperature of 90°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 120s. The polyester fabric after normal pressure plasma modification treatment is fully padded in the pre-hydrolyzed finishing solution, and the solution is configured according to the bath ratio of 1:40. The finishing solution includes the following raw materials (by mass parts): fluorosilane finishing agent 1H, 1 part of 1H, 2H, 2H-perfluorooctyltriethoxysilane, 99 parts of absolute ethanol, 100 parts of deionized water, and 1 part of acetic acid, wherein the fluorosilane was pre-hydrolyzed for...

Embodiment 2

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

[0040] Wash and dry the surface of the polyester fabric at a temperature of 95°C. The cleaned polyester fabric was surface-treated 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 after normal pressure plasma modification treatment is fully padded in the pre-hydrolyzed finishing solution, and the solution is configured according to the bath ratio of 1:40. The finishing solution includes the following raw materials (by mass parts): fluorosilane finishing agent 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane 1 part, absolute ethanol 99 parts, deionized water 100 parts, acetic acid 1 part, fluorosilane pre-hydrolysis for 30min. Two dipping and two rolling, the padding pressure is 2.5...

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 fiber surface modification of textile materials, and relates to a preparation method of plasma-assisted superhydrophobic polyester fabric. Background technique [0002] As one of the three major synthetic fibers in the world, polyester has simple synthesis and processing technology, excellent physical and chemical properties, and low price. The product is durable, easy to wash and dry, and easy to care for. broad. Functional finishing of polyester fabrics, such as waterproof, antibacterial, anti-wrinkle, flame retardant, antistatic, etc., can improve the product grade and increase the added value of the product. Among them, the superhydrophobic 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. The superhydrophobic modification of polyester fabrics has always ...

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 Patents(China)
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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