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Crude organosilicone oil, silicon-containing stiffening agent and preparation methods for crude organosilicone oil and silicon-containing stiffening agent

An organosilicon and stiffening agent technology, applied in the direction of improved hand-feeling fibers, textiles and papermaking, fiber processing, etc., can solve the problems of no slippery feeling, no washability, no thick feeling, etc., and achieve a thick feel and excellent washability. Effect

Inactive Publication Date: 2019-04-12
GUANGDONG CHUANHUA FULIAN FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after the fabric is treated with traditional stiffeners, although the scratchiness is significantly improved, the handle tends to become rough, no slippery, no thick feeling, and it is not washable

Method used

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  • Crude organosilicone oil, silicon-containing stiffening agent and preparation methods for crude organosilicone oil and silicon-containing stiffening agent
  • Crude organosilicone oil, silicon-containing stiffening agent and preparation methods for crude organosilicone oil and silicon-containing stiffening agent
  • Crude organosilicone oil, silicon-containing stiffening agent and preparation methods for crude organosilicone oil and silicon-containing stiffening agent

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preparation example Construction

[0027] A preparation method of the organosilicon crude oil, first react linear silane and silane coupling agent at 100-115°C for 1-3h, add a basic catalyst, turn on the vacuum, raise the temperature to 130-140°C, and continue vacuuming After reacting for 10-20 hours, a silicone crude oil with a viscosity greater than 1 million mPa.s at 100°C is obtained, which is translucent solid at room temperature.

[0028] As an improvement, the linear silane used is Dow Corning's linear body PMX 0156 or Wacker's linear body WS62M.

[0029] As an improvement, the amount of the silane coupling agent is 0.05-0.15% by weight of the linear silane.

[0030] As an improvement, the amount of the basic catalyst is 0.05-0.5% of the linear silane weight;

[0031] The basic catalyst is any one or a mixture of potassium hydroxide, sodium hydroxide and lithium hydroxide.

[0032] A silicon-containing stiffener, comprising the following raw materials in parts by weight: 10-30 parts of organic silicon ...

Embodiment 1

[0039] A preparation method of silicon-containing stiffening agent, comprising the following steps:

[0040] 1) In a 1L four-necked flask equipped with a thermometer, a condenser and an electric stirrer, add 500g of linear body PMX0156 and 0.4g of 3-(2-aminoethyl)-aminopropylmethyldimethoxysilane at 110 React at ℃ for 2 hours, then add 1.0g of potassium hydroxide solution with a concentration of 50%, turn on the vacuum and raise the temperature, react at 135℃ for 12h, measure the viscosity, and the online viscometer between 100-120℃ shows more than 1 million mPa.s, Viscosity is qualified (translucent solid when cooled to normal temperature), add 15g propylene glycol butyl ether into the flask, continue to stir for 1h, and obtain intermediate crude oil Ⅰ;

[0041] 2) Add 100g of polyvinyl acetate (PVAC), 150g of ethyl acetate, and 250g of intermediate crude oil I into a 2L beaker equipped with a condensation system, a disperser, and a homogenizer, start the disperser, and stir ...

Embodiment 2

[0043] A preparation method of silicon-containing stiffening agent, comprising the following steps:

[0044] 1) In a 1L four-neck flask equipped with a thermometer, a condenser and an electric stirrer, add 500g of linear WS62M and 0.3g of y-glycidyl ether propylmethyldimethoxysilane, and react at 110°C for 1h. Then add 1.0g of lithium hydroxide, turn on the vacuum and heat up, react at 140°C for 16h, measure the viscosity, the online viscometer between 100°C and 120°C shows more than 1 million mPa.s, the viscosity is qualified (it is translucent solid when cooled to normal temperature), Add 10 g of diethylene glycol butyl ether into the flask, and continue stirring for 1 h to obtain intermediate crude oil II;

[0045]2) Add 80g of polyvinyl acetate (PVAc), 100g of ethyl acetate, and 300g of intermediate crude oil II into a 2L beaker equipped with a condensation system, a disperser, and a homogenizer, start the disperser, and stir at 1500 rpm 0.5h, then add 22g of C13 isomeric...

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Abstract

The invention discloses a silicon-containing stiffening agent, belonging to the field of textile auxiliary agents. The silicon-containing stiffening agent comprises the following raw materials by weight: 10 to 30 parts of crude intermediate oil, 5 to 10 parts of polyvinyl acetate, 10 to 20 parts of ethyl acetate, 4 to 10 parts of an emulsifier and 30 to 70 parts of deionized water. The preparationmethod for the silicon-containing stiffening agent comprises the following steps: uniformly mixing crude organosilicone oil, the polyvinyl acetate and the ethyl acetate, then adding the emulsifier, carrying out dispersing and emulsifying with a high-speed dispersing machine and a homogenizing machine for 1 to 2 h, and adding water for a plurality of times in batches until a phase of an obtained product is converted into an emulsion-like phase. The silicon-containing stiffening agent provided by the invention has excellent chemical stability against acid, alkali, salt and the like, can endow the hand feelings of stiffness, flatness, smoothness, thickness and solidness to fabrics, and has excellent washing resistance; and the textile treated by using the silicon-containing stiffening agentcan still maintain the hand-feeling styles of stiffness, flatness, smoothness and drape pendency after being washed with water for 5 times or more.

Description

technical field [0001] The invention relates to an organosilicon crude oil, a silicon-containing stiffening agent and a preparation method thereof, belonging to the field of textile auxiliaries. Background technique [0002] At present, in the field of textile finishing, stiffening can endow the fabric with a special stiff skinny and draped appearance, and is an important fabric finishing method. The classification of existing stiffeners includes: polyvinyl alcohol, polyvinyl acetate, polyacrylic resin, urea-formaldehyde resin, melamine resin, etc. Among them, urea-formaldehyde resin and melamine resin will slowly release free formaldehyde, which will cause invisible damage to human health, and their use is becoming more and more restricted. Therefore, formaldehyde-free and environmentally friendly fabric stiffeners are more popular in the market. Polyvinyl alcohol, polyvinyl acetate, and polyacrylic resin stiffeners all meet environmental protection requirements, and have ...

Claims

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Application Information

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IPC IPC(8): C08G77/26C08G77/18C08G77/08C08G77/06D06M15/643D06M15/65D06M15/333D06M13/224
CPCC08G77/06C08G77/08C08G77/18C08G77/26D06M13/224D06M15/333D06M15/6436D06M15/65D06M2200/50
Inventor 袁金亮杨中新王胜鹏
Owner GUANGDONG CHUANHUA FULIAN FINE CHEM CO LTD
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