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Polypeptide-siloxane copolymer and preparation method thereof

A technology of siloxane copolymer and polyorganosiloxane, which is applied in textiles, papermaking, fiber processing, etc., can solve the problems of insufficient, easy yellowing and hydrophilicity of amino silicone oil softener, and achieve the effect of good stability.

Active Publication Date: 2012-05-09
WACKER DYMATIC SILICONES SHUNDE CO LTD FOSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings of the current amino silicone oil softener that is easy to yellow and have insufficient hydrophilicity, and to provide a polypeptide-siloxane copolymer that is soft and smooth, and is not easy to yellow, so as to overcome the prior art lack of

Method used

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  • Polypeptide-siloxane copolymer and preparation method thereof
  • Polypeptide-siloxane copolymer and preparation method thereof
  • Polypeptide-siloxane copolymer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In a reaction vessel equipped with a stirrer, add 120 ml of toluene, 100 g of hydrogen-containing polyorganosiloxane (PDMHS) (H wt% = 0.05%, viscosity 210 mPa.s), 6.9 g of allyl glycidyl ether, 5g isopropanol, be warmed up to 70~80 ℃, add the chloroplatinic acid-isopropanol solution equivalent to 15ppm platinum, constant temperature reaction 6 hours, then decompressed and evaporated the solvent and excess allyl glycidyl ether to obtain ring Oxygen-polysiloxane intermediates.

[0028] 40 g of the polypeptide compound (soybean polypeptide) was dissolved in ethanol solution, the temperature was raised to 80° C., and the above intermediate was added. After 6 hours of reaction, the solvent was evaporated under reduced pressure to obtain a yellow cloudy liquid with a viscosity of 4650 mPa.s.

Embodiment 2

[0030] 6.9g of allyl glycidyl ether in Example 1 was changed to 7.5g of glycidyl acrylate. The remaining raw materials used are the same as those in Example 1, and the preparation steps are also the same as those in Example 1.

Embodiment 3

[0032] The soybean polypeptide in Example 1 was changed to sesame polypeptide. The remaining raw materials used are the same as those in Example 1, and the preparation steps are also the same as those in Example 1.

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Abstract

The invention discloses a polypeptide-siloxane copolymer, which is characterized in that the polypeptide-siloxane copolymer has the general formula shown in the specification, wherein x=0-1000, 0<y<=10 and m=2-100; and R is selected from one or more of hydrogen, methyl, isopropyl, isobutyl, carboxymethyl, carboxyethyl and phenylpropyl. The polypeptide-siloxane copolymer is used as the finishing agent of the fabrics, not only can ensure the fabrics to have the effects of softness and smoothness, but also has good stability and quite good shear force, centrifugal force, electrolyte, hard water and other index values and has no adverse effects on the hue of the fabrics under high temperature.

Description

technical field [0001] The present invention relates to a fabric softener and a preparation method thereof, more particularly, to a polypeptide-siloxane copolymer for textile treatment and a preparation method thereof. It belongs to the technical field of textile finishing aids. Background technique [0002] In the textile chemical industry, polyorganosiloxane is usually used to improve the properties of textiles and is an important auxiliary agent for post-treatment of natural and synthetic fiber fabrics. Connecting the corresponding functional groups to the siloxane molecular segments can have good hydrophilic, hydrophobic, antistatic, soft, smooth, antibacterial and other functions, especially amino-modified The finishing effect of polyorganosiloxane (amino silicone oil) is better. However, amino silicone oil has the disadvantages of easy yellowing and insufficient hydrophilicity, which has adverse effects on the finished textiles. [0003] Polypeptides generally refer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G81/00C08G77/388C08G69/48D06M15/643
Inventor 李伟明姜晓明黄旭明龚涛陈雄泉
Owner WACKER DYMATIC SILICONES SHUNDE CO LTD FOSHAN
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