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Method for preparing silicon oil

A technology of silicone oil and silane coupling agent, which is applied in textiles, papermaking, fiber treatment, etc., can solve the problems of poor hand feeling of fibers, and achieve the effect of increasing softness, excellent smoothness and rebound

Inactive Publication Date: 2013-01-30
FUYANG HESHI CHEM FIBER AUX CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defect in the prior art that the fiber treated with silicone oil feels bad, the invention provides a method for preparing silicone oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] First, in parts by weight, add 400 parts of octamethylcyclotetrasiloxane (D4) to the reactor, then add water as a solvent, wherein the weight of water is 250 parts, and then add 4.8 parts of fatty alcohol polyoxygen Vinyl ether, add 5.5 parts of emulsifier and 5.5 parts of dispersant at the same time, add 7 parts of amino silicone oil in the reaction kettle for stirring, and heat up to 45 ° C, add 8 parts of water after 2.5 hours of reaction, and then Potassium hydroxide is added as a catalyst, wherein the weight of potassium hydroxide is 2 parts, the reactants in the reactor are stirred and reacted, and heated to 70°C for 3 hours, then 10 parts of silane distillate are added dropwise to the reactor. Coupler N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane, and N-(β-aminoethyl)-γ-aminopropylmethyldimethoxysilane in 10 After dropping within minutes, heat up to 80°C and react for 11 hours, then cool down to 40°C, add 1.5 parts of glacial acetic acid and stir for 2 hour...

Embodiment 2

[0019] First, in parts by weight, add 600 parts of octamethylcyclotetrasiloxane (D4) to the reactor, then add water as a solvent, wherein the weight of water is 450 parts, and then add 6.8 parts of fatty alcohol polyoxygen Vinyl ether, add 7.5 parts of emulsifier and 7.5 parts of dispersant at the same time, add 9 parts of amino silicone oil in the reaction kettle for stirring, and heat up to 65 ° C, add 10 parts of water after 0.5 hours of reaction, and then Potassium hydroxide is added as a catalyst, wherein the weight of potassium hydroxide is 4 parts, the reactants in the reactor are stirred and reacted, and heated to 90°C for 1 hour, and then 30 parts of silane distillate are added dropwise to the reactor. Co-agent N-cyclohexyl-y-aminopropylmethyldimethoxysilane, and N-cyclohexyl-y-aminopropylmethyldimethoxysilane drops in 15 minutes, then heat up to 100 ℃ and reacted for 9 hours, lower the temperature to 60 ℃, add 3.5 parts of glacial acetic acid and stir for 4 hours, ad...

Embodiment 3

[0021] First, in parts by weight, add 500 parts of octamethylcyclotetrasiloxane (D4) to the reactor, then add water as a solvent, wherein the weight of water is 350 parts, and then add 5.8 parts of fatty alcohol polyoxygen Vinyl ether, add 6.5 parts of emulsifier and 6.5 parts of dispersant at the same time, add another part of amino silicone oil to stir in the reaction kettle, and heat up to 58 ° C, add 8.5 parts of water after 1.5 hours of reaction, and then add Potassium hydroxide is used as a catalyst, wherein the weight of potassium hydroxide is 2.8 parts. The reactants in the reactor are stirred and reacted, and heated to 78 ° C for 2 hours, and 20 parts of silane coupling are added dropwise to the reactor. Agent γ-diethylenetriaminopropylmethyldimethoxysilane, and γ-diethylenetriaminopropylmethyldimethoxysilane drops within 20 minutes, then heat up to 92°C and react for 10 hours Afterwards, cool down to 50°C, add 2.55 parts of glacial acetic acid and stir for 3 hours, a...

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PUM

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Abstract

The invention provides a method for preparing silicon oil. The method comprises the following steps of: adding 400 to 600 weight parts of octamethylcyclotetrasiloxane and 250 to 450 weight parts of water into a reaction kettle to carry out hydrolysis; adding 4.8 to 6.8 weight parts of fatty alcohol-polyoxyethylene ether, 5.5 to 7.5 weight parts of emulsifying agent, 5.5 to 7.5 weight parts of dispersant and 7 to 9 weight parts of amino silicon oil into the reaction kettle, stirring, heating to the temperature of between 45 and 60 DEG C, and keeping the temperature for 0.5 to 2.5 hours; adding 8 to 10 weight parts of water and 2 to 4 weight parts of potassium hydroxide into the reactants, stirring, heating to the temperature of between 70 and 90 DEG C, and keeping the temperature for 1 to 3 hours; dripping 10 to 30 weight parts of coupling agent into the reactants, heating to the temperature of between 80 and 100 DEG C, keeping the temperature for 9 to 11 hours, and cooling to the temperature of between 40 and 60 DEG C; and adding 1.5 to 3.5 weight parts of glacial acetic acid into the reactants, stirring for 2 to 4 hours, regulating the pH to be 7-9, and discharging at the temperature of between 30 and 50 DEG C. By adopting the method, the performance of the silicon oil can be improved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a preparation method of silicone oil. Background technique [0002] Ordinary amino silicone oils, such as amino silicone oils synthesized from α-aminoethyl-β-aminopropylmethyldimethoxysilane, are widely used as fabric finishing agents due to their excellent softness. Due to the cross-linking of the amino group, the finishing effect of amino silicone oil is good, but its obvious disadvantage is the lack of hydrophilicity. After finishing natural fiber fabrics, although the softness is significantly improved, the hydrophilicity is almost completely lost. The natural and comfortable style of the fabric. [0003] In view of this, how to design a kind of silicone oil so that the fiber treated by it has excellent comprehensive properties such as smoothness and rebound is a problem that people in the industry need to solve urgently. Contents of the invention [0004] Aimin...

Claims

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Application Information

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IPC IPC(8): C08G77/44C08G77/26D06M15/643
Inventor 何健洪
Owner FUYANG HESHI CHEM FIBER AUX CO LTD
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