Dacron fabric fluorine-free waterproof finishing method

A polyester fabric, fluorine-free waterproof technology, applied in fiber treatment, textiles and papermaking, etc., can solve problems such as limitations of waterproof finishing agents, achieve obvious waterproof effect, high efficiency, and simple operation

Inactive Publication Date: 2018-05-01
JIANGSU NEW REBA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long fluorocarbon chain polymer-based waterproof finishing agent shows the best waterproof performance due to the good crystallinity and bulk density of the fluorocarbon chain, but the long fluorocarbon chain polymer-based waterproof finishing agent will be damaged during production or use Produces stable metabolites perfluorooctane sulfonate (PFOS) or perfluorooctanoic acid (PFOA), which are harmful to the environment and human body, making the use of such waterproof finishing agents restricted by the international community

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Use 3-mercaptopropyltriethoxysilane to modify the polyester fabric, and react with vinyl POSS and mercaptosilane to make the polyester fabric have good waterproof performance. The specific steps are:

[0026] Step 1: First of all, because there is oil and dirt on the surface of the polyester fabric, first degrease it, that is, wash it with a mixed solution containing 15g / L sodium hydroxide at 70°C for 20 minutes.

[0027] Then roughen the degreased polyester fabric, and treat it with 200g / L NaOH solution at 60°C for 30min to enrich the surface of the polyester fiber with hydroxyl groups, and obtain the pretreated polyester fabric.

[0028] After that, prepare an ethyl acetate solution of 5wt% 3-mercaptopropyltriethoxysilane, put the obtained pretreated polyester fabric into the solution for mercapto modification, seal the beaker with a film, and place it in a constant temperature magnetic stirring water bath medium, 25°C for 2 hours with shaking. After the end, the pol...

Embodiment 2

[0033] Use 3-mercaptopropyltriethoxysilane to modify the polyester fabric, and react with vinyl POSS and alkyl mercaptan to make the polyester fabric have good waterproof performance. The specific steps are as follows:

[0034] Step 1: First of all, because there is oil and dirt on the surface of the polyester fabric, first degrease it, that is, wash it with a mixed solution containing 12g / L sodium hydroxide at 60°C for 25min.

[0035] Then roughen the degreased polyester fabric, and treat it with 100g / L NaOH solution at 70°C for 10 minutes to enrich the surface of the polyester fiber with hydroxyl groups to obtain the pretreated polyester fabric.

[0036] After that, prepare an ethyl acetate solution of 5wt% 3-mercaptopropyltriethoxysilane, put the obtained pretreated polyester fabric into the solution for mercapto modification, seal the beaker with a film, and place it in a constant temperature magnetic stirring water bath medium, 25°C for 3 hours with shaking. After the en...

Embodiment 3

[0041] Use 3-mercaptopropyltriethoxysilane to modify the polyester fabric, and react with vinyl POSS and alkyl mercaptan to make the polyester fabric have good waterproof performance. The specific steps are as follows:

[0042] Step 1: First of all, because there is oil and dirt on the surface of the polyester fabric, first degrease it, that is, wash it with a mixed solution containing 15g / L sodium hydroxide at 70°C for 20 minutes.

[0043] Then roughen the degreased polyester fabric, and treat it with 200g / L NaOH solution at 60°C for 30min to enrich the surface of the polyester fiber with hydroxyl groups, and obtain the pretreated polyester fabric.

[0044] After that, prepare an ethyl acetate solution of 5wt% 3-mercaptopropyltriethoxysilane, put the obtained pretreated polyester fabric into the solution for mercapto modification, seal the beaker with a film, and place it in a constant temperature magnetic stirring water bath medium, 25°C for 2 hours with shaking. After the ...

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Abstract

The invention discloses a dacron fabric fluorine-free waterproof finishing method. According to the method, firstly, MPTS (3-mercaptopropyltriethoxysilane) is used for performing hydrosulphonyl modification treatment on the surface of a dacron fabric, so that the dacron fabric obtains hydrosulphonyl with higher activity; then, through chemical reaction, hydrosulphonyl silane (or alkyl sulfhydryl)and the vinyl POSS with the olefinic bond structures take an ultraviolet light polymerization reaction with the dacron fabric subjected to modification treatment, and are combined onto the dacron fabric molecules by a chemical bonding method; a treated product has a waterproof function. The operation is simple; the efficiency is high; under the fluorine-free condition of a finishing agent, the waterproof effect is obvious; the water washing-resistant firmness is high; the water-proof performance durability of the dacron fabric is improved.

Description

technical field [0001] The invention belongs to the field of textile finishing, in particular to a fluorine-free waterproof finishing method for polyester fabrics. Background technique [0002] Functional textiles have clearly become one of the important trends in the future development of the textile industry, among which waterproof textiles are an important part of functional textiles. Textile fiber types, fabric structure, waterproof finishing agent performance, dyeing and finishing process have an important impact on the waterproof performance of textiles. For textiles with a certain type and structure, waterproof finishing agent is the most critical factor in determining the waterproof performance of textiles. [0003] At present, commonly used waterproof finishing agents for textiles include waterproof finishing agents based on fluorocarbon polymers, silicones, and long-chain alkane polymer structures. The long fluorocarbon chain polymer-based waterproof finishing ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/643D06M13/513D06M13/252D06M11/38D06M101/32
Inventor 储平徐有琦
Owner JIANGSU NEW REBA TECH CO LTD
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