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Silk waterproof functional agent and preparation method thereof

A functional agent, silk technology, applied in textile and papermaking, fiber treatment, liquid repellent fibers, etc., can solve problems such as large environmental pollution and non-compliance, and achieve improved comprehensive performance, good mechanical strength, and wide application prospects. Effect

Inactive Publication Date: 2019-10-25
SUZHOU INST OF TRADE & COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, organic fluorine has a great impact on the environment, and the use of organic fluorine for water-repellent finishing does not conform to the current concept of green environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] The preparation method of described modified polyvinyl alcohol is as follows:

[0022] (1) React 2,4-diisocyanate toluene with stearyl alcohol at a molar ratio of 1:1 at 40°C for 2 hours to form compound A;

[0023] (2) Dissolve polyvinyl alcohol in methylpyrrolidone solution so that the mass fraction is 10wt%, and then mix it with compound A at a mass ratio of 1:8, and continue to stir and react for 2 hours at a temperature of 50°C. The reaction product is precipitated with methanol, the precipitate is dissolved with methylpyrrolidone, and finally methanol is used for precipitation, and the precipitate is collected by centrifugation and vacuum-dried to obtain modified polyvinyl alcohol.

[0024] The preparation method of described modified titanium dioxide comprises the steps:

[0025] (1) Add tetrabutyl titanate to the ethanol solution at a volume ratio of 2:1 and mix well; dissolve SDS into the aqueous solution to make the final concentration 1wt%, and adjust the pH...

Embodiment 1

[0028] A real silk waterproof functional agent is prepared from the following raw materials in parts by weight:

[0029] 45 parts of modified polyvinyl alcohol, 28 parts of myristic acid, 23 parts of modified titanium dioxide, 8 parts of isomeric alcohol polyoxyethylene ether, 6 parts of sorbitol polyoxyethylene ether cocoate, 5 parts of trimethylol propane , 11 parts of tetradecyl dihydroxyethylamine oxide, 6 parts of polyvinylpyrrolidone, 15 parts of liquid nitrile rubber, and 15 parts of water.

[0030] The preparation method of the real silk waterproof functional agent of the present invention comprises the following steps:

[0031] (1) Mix modified polyvinyl alcohol, myristic acid, modified titanium dioxide, isomeric alcohol polyoxyethylene ether, sorbitol polyoxyethylene ether cocoate, and water, and stir and mix at a temperature of 40°C for 1.5 h, forming a mixed emulsion;

[0032] (2) Add trimethylolpropane, tetradecyl dihydroxyethyl amine oxide, polyvinylpyrrolidone...

Embodiment 2

[0034] A real silk waterproof functional agent, prepared from the following raw materials in parts by weight: 30 parts of modified polyvinyl alcohol, 20 parts of myristic acid, 15 parts of modified titanium dioxide, 5 parts of isomeric alcohol polyoxyethylene ether, polysorbate 4 parts of oxyethylene ether cocoate, 3 parts of trimethylolpropane, 7 parts of myristyl dihydroxyethyl amine oxide, 2 parts of polyvinylpyrrolidone, 10 parts of liquid nitrile rubber, and 10 parts of water.

[0035] The preparation method of the real silk waterproof functional agent of the present invention comprises the following steps:

[0036] (1) Mix modified polyvinyl alcohol, myristic acid, modified titanium dioxide, isomeric alcohol polyoxyethylene ether, sorbitol polyoxyethylene ether cocoate, and water, and stir and mix at a temperature of 30°C for 1 hour , forming a mixed emulsion;

[0037] (2) Add trimethylolpropane, tetradecyl dihydroxyethyl amine oxide, polyvinylpyrrolidone, and liquid ni...

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PUM

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Abstract

The invention provides a silk waterproof functional agent and a preparation method thereof. The functional agent is prepared from raw materials in parts by weight as follows: 30-60 parts of modified polyvinyl alcohol, 20-35 parts of myristic acid, 15-30 parts of modified titanium dioxide, 5-10 parts of alcohol alkoxylate, 4-8 parts of sorbethcocoate, 3-7 parts of trimethylolpropane, 7-15 parts oftetradecyldihydroxyethyl amine oxide, 2-9 parts of polyvinylpyrrolidone, 10-20 parts of liquid nitrile rubber and 10-20 parts of water, and modified polyvinyl alcohol and modified titanium dioxide areprepared by hydrophobic modification. After fabric is subjected to finishingwith the functional agent, the fabric has good waterproof performance, the treated silk fabric still keeps higher mechanical strength, and therefore, the waterproof functional agent has broad application prospects in the field of textiles.

Description

technical field [0001] The invention belongs to the technical field of textiles, and in particular relates to a silk waterproof functional agent and a preparation method thereof. Background technique [0002] Silk is a traditional characteristic textile product in my country. However, in recent years, the silk industry is facing a great crisis. Therefore, expanding the application range of real silk is one of the important ways for real silk products to get out of the predicament. Silk water-repellent products can be used not only for daily clothing fabrics, but also for bags, watch straps, adhesive material substrates, etc., and occupy a certain share in the functional finishing textile market. In the past, silicone-based water repellent was used in the waterproof finishing of real silk. Although the processing cost is low, the waterproof effect and durability are not good. With the development of organic fluorine chemistry and the reduction of product preparation costs, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/333D06M11/46D06M13/148D06M13/188D06M13/388D06M15/356D06M15/53D06M15/693D06M101/10
CPCD06M11/46D06M13/148D06M13/188D06M13/388D06M15/333D06M15/3562D06M15/53D06M15/693D06M2101/10D06M2200/12
Inventor 杭伟明
Owner SUZHOU INST OF TRADE & COMMERCE