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Quaternary ammonium type hydrophilic amino-modified silicone oil emulsion and preparation method thereof

A technology of silicone oil emulsion and amino silicone oil, which is applied in the direction of improved hand feeling fibers, textiles and papermaking, fiber treatment, etc., can solve the problems affecting product soft feel, product stability, soft and slippery feel, etc., and achieve a significant deepening effect, The effect of low yellowing and small color change

Inactive Publication Date: 2017-04-26
WACKER DYMATIC SILICONES SHUNDE CO LTD FOSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the introduction of epichlorohydrin will lead to cross-linking reaction ("Daily Chemical Industry", Vol. 31, No. 3, 2016, pages 27-30), which will affect the soft feel and product stability of the final product
In U.S. Patent US20090274643A1, a tertiary amino ternary copolymerized silicone oil is obtained by reacting epoxy silicone oil and diethylaminopropylamine, and then methyl chloroacetate is used for quaternization reaction to obtain a softener with very good hydrophilicity. Excellent alkali resistance, but poor soft and slippery feel

Method used

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  • Quaternary ammonium type hydrophilic amino-modified silicone oil emulsion and preparation method thereof
  • Quaternary ammonium type hydrophilic amino-modified silicone oil emulsion and preparation method thereof
  • Quaternary ammonium type hydrophilic amino-modified silicone oil emulsion and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] (1) Preparation of amino silicone oil: mix 660 grams of α, ω-hydroxy polydimethylsiloxane (silicone linear body) with 20 grams of N-(β-aminoethyl)-γ-aminopropylmethyl Dimethoxysilane, 0.2 g of 30% aqueous sodium hydroxide solution, and 5 g of hexamethyldisiloxane were reacted at 95° C. for 3 hours under a vacuum of 100 mbar, and neutralized with acetic acid to obtain amino silicone oil.

[0035] (2) Preparation of modified amino silicone oil: Add 685 grams of amino silicone oil and 15.6 grams of dimethylaminoethyl methacrylate into 210 grams of isopropanol solution and mix evenly, react at 30°C for 10 hours, Amino silicone oil modified with dimethylaminoethyl methacrylate was obtained.

[0036] (3) Quaternization reaction: Mix 1 g of the isopropanol solution of the modified amino silicone oil 910 with 10.8 g of methyl chloroacetate, and react at 80° C. for 8 hours to obtain a quaternized amino silicone oil.

[0037] (4) Inverse emulsification: Add 11.6 grams of acid to...

Embodiment 2

[0039] (1) Preparation of amino silicone oil: Mix 660 grams of α, ω-hydroxypolydimethylsiloxane (silicone linear body) with 25 grams of γ-piperazinylpropylmethyldimethoxysilane, 30% 0.2 g of aqueous sodium hydroxide solution and 5 g of hexamethyldisiloxane were reacted at 95° C. for 3 hours under a vacuum of 100 mbar, and neutralized with acetic acid to obtain amino silicone oil.

[0040] (2) Preparation of modified amino silicone oil: add 685 grams of amino silicone oil and 17 grams of dimethylaminoethyl methacrylate into 210 grams of isopropanol solution and mix evenly, react at 30°C for 10 hours, Amino silicone oil modified with dimethylaminoethyl methacrylate was obtained.

[0041] (3) Quaternization reaction: Mix 912 grams of isopropanol solution of the modified amino silicone oil with 23.5 grams of methyl chloroacetate, and react at 80° C. for 8 hours to obtain quaternized amino silicone oil.

[0042] (4) Inverse emulsification: Add 13 grams of acid to 935.5 grams of qu...

Embodiment 3

[0044] (1) Preparation of amino silicone oil: mix 660 grams of α, ω-hydroxypolydimethylsiloxane (silicone linear body) with 30 grams of N-(β-aminoethyl)-γ-aminopropylmethyl Dimethoxysilane, 0.2 g of 30% aqueous sodium hydroxide solution, and 5 g of hexamethyldisiloxane were reacted at 95° C. for 3 hours under a vacuum of 100 mbar, and neutralized with acetic acid to obtain amino silicone oil.

[0045] (2) Preparation of modified amino silicone oil: add 695 grams of amino silicone oil and 23 grams of dimethylaminoethyl methacrylate into 210 grams of isopropanol solution and mix evenly, react at 30°C for 10 hours, Amino silicone oil modified with dimethylaminoethyl methacrylate was obtained.

[0046] (3) Quaternization reaction: Mix 928 grams of isopropanol solution of the modified amino silicone oil with 16 grams of methyl chloroacetate, and react at 80° C. for 8 hours to obtain a quaternized amino silicone oil.

[0047] (4) Inverse emulsification: Add 17.5 grams of acid to 94...

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Abstract

The invention discloses a preparation method of a quaternary ammonium type hydrophilic amino-modified silicone oil emulsion. The preparation method includes the following preparation steps that firstly, amino-modified silicone oil is prepared from alpha,omega-hydroxy polydimethyl siloxane (linear organosilicon), an amino coupling agent, a sealing agent and a basic catalyst, then the amino-modified silicone oil and dimethylaminoethyl methacrylate react, acrylate-modified amino-modified silicone oil is obtained, and finally quaternization is carried out through methyl chloroacetate. The quaternary ammonium type hydrophilic amino-modified silicone oil emulsion is simple in preparation process, has self-emulsifying performance, and is used for after-finishing of fabrics, and the fabrics are made to have excellent soft and slip hand feeling, and are low in yellowing, small in color alteration and good in hydrophilicity.

Description

technical field [0001] The invention relates to a quaternary ammonium type hydrophilic amino silicone oil emulsion and a preparation method thereof. Background technique [0002] Silicone softener has good softness and smoothness, and is widely used in finishing of various textiles. Polysiloxane (referred to as polyether silicone) with polyoxyethylene, polyoxypropylene or polyoxyethylene polyoxypropylene ether groups attached to the end of the molecule or in the main chain block (referred to as polyether silicone), used for fabric finishing, can provide The fabric has good softness, ideal hygroscopicity, antistatic property and easy decontamination performance, so it will have a good application prospect in the natural simulation finishing of chemical fiber fabrics and blended fabrics. [0003] Polyether modified silicone softener uses allyl-terminated polyether and hydrogen-containing silicone oil as raw materials, and grafts or blocks polyether chains to silicone polymer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/385C08G77/388C08J3/03C08L83/08D06M15/643
CPCC08G77/385C08G77/388C08J3/03C08J2383/08C08L83/08C08L2201/54D06M15/6436D06M2200/50
Inventor 龚涛林芳银亮肖成贵徐小刚谢树明张建军
Owner WACKER DYMATIC SILICONES SHUNDE CO LTD FOSHAN
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