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Synthetic method of polyurethane modified organic silicone oil

A technology of polyurethane modification and silicone oil, which is applied in the direction of improved hand fibers, fiber types, textiles and papermaking, etc., which can solve the problems of easy silicon transfer, weak surface polarity, poor adhesion, etc., and achieve excellent soft hand feeling , improved adsorption performance, and excellent emulsion stability

Inactive Publication Date: 2020-11-03
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the weak surface polarity of silicone polymers, easy silicon transfer, poor adhesion, poor compatibility with other finishing agents, and difficulty in dispersing in water, it is necessary to modify them for use.

Method used

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  • Synthetic method of polyurethane modified organic silicone oil
  • Synthetic method of polyurethane modified organic silicone oil
  • Synthetic method of polyurethane modified organic silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1), the synthesis of epoxy polyether modified silicone oil intermediate: After soaking the four-necked flask in glacial acetic acid with a mass ratio of 10% (w / w), wash and dry, and 1mol molecular weight is 8000g / mol Terminal hydrogen-containing silicone oil (obtained from Lanxinghuo) and 2mol allyl glycidyl ether (AGE, obtained from Dasao, Japan) were dehydrated and added to the flask in turn, stirred evenly and heated to 70°C, and then added dropwise 16ml of 1% ( g / ml) isopropanol solution of chloroplatinic acid, keep stirring until the temperature rises to 85° C. and keep it warm for 3 hours. After the solution is transparent and no bubbles overflow, cool down and take out to obtain epoxy polyether modified silicone oil A.

[0036] (2) Synthesis of amino polyether modified silicone oil intermediate: add 1 mol epoxy polyether modified silicone oil A, 2 mol double-terminated amino polyether D230 (from Huntsman) to the flask, and heat to 85°C , heat preservation reacti...

Embodiment 2

[0041] (1), the synthesis of epoxy polyether modified silicone oil intermediate: After soaking the four-necked flask in 10% glacial acetic acid, wash and dry, and 1mol molecular weight is 8000g / mol terminal hydrogen-containing silicone oil (obtained from Blue Xinghuo) and 2mol pure PEO allyl epoxy polyether (Mn=500g / mol) (Yangzhou Chenhua New Material Co., Ltd.) were dehydrated and added to the flask successively, then added 30% toluene and stirred evenly and heated to 70 After ℃, add 16ml of 1% (g / ml) isopropanol solution of chloroplatinic acid dropwise, keep stirring until the temperature rises to 85℃ and keep it warm for 6 hours. After the solution is transparent and free of bubbles, cool down and take it out to obtain epoxy polyether Modified silicone oil A.

[0042] (2) Synthesis of amino polyether modified silicone oil intermediate: add 1 mol epoxy polyether modified silicone oil A, 2 mol double-terminated amino polyether D230 (from Huntsman) to the flask, and heat to 85...

Embodiment 3

[0047] (1) Synthesis of epoxy polyether modified silicone oil intermediate: After immersing the four-necked flask in 10% (g / g) glacial acetic acid, wash and dry, 1 mol molecular weight is 8000g / mol terminal hydrogen Silicone oil (obtained from Lanxinghuo) and 2mol allyl glycidyl ether (AGE, obtained from Dasao, Japan) were dehydrated and added to the flask in turn, stirred evenly and heated to 70°C, and then 16ml of 1% (g / ml ) isopropanol solution of chloroplatinic acid, keep stirring until the temperature rises to 85° C. and keep it warm for 3 hours. After the solution is transparent and no bubbles overflow, cool down and take out to obtain epoxy polyether modified silicone oil A.

[0048] (2), synthesis of amino polyether modified silicone oil intermediate: add 1mol epoxy polyether modified silicone oil A, 2mol double-ended amino polyether ED600 (obtained from Huntsman), 40% toluene, Heat to 85°C, keep the temperature for 8 hours, then cool down to room temperature and take ...

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Abstract

The invention relates to a synthesis method of polyurethane modified organic silicone oil, which comprises the following steps: carrying out a reaction on hydrogen-terminated silicone oil with allyl epoxy polyether under the action of a catalyst to obtain epoxy polyether modified silicone oil, adding amino-terminated polyether, and reacting to obtain amino polyether modified organic silicone oil,and then carrying out a reaction with an isocyanate group terminated isophorone diisocyanate polypropylene glycol polyurethane prepolymer to obtain the polyurethane modified organic silicone oil. Thepreparation method has the main beneficial effects that (1) the adsorption performance of the organic silicon oil is well improved by embedding the polyurethane chain segment, the polarity of the polymer is increased, the emulsifying performance of the modified organic silicon oil is greatly improved, and the emulsion stability is excellent; (2) the modified silicone oil obtained by the method hashigher polymerization degree, and the prepared finishing agent has softness, elasticity, excellent washability and hard water resistance; and (3) the raw materials are easy to obtain, the process issimple, and the product is stable.

Description

[0001] (1) Technical field [0002] The invention relates to a method for synthesizing polyurethane modified organic silicone oil. [0003] (2) Background technology [0004] In the finishing process of textile materials and leather materials, due to the roughness, hard feel and poor wearing comfort of the raw materials, it is necessary to handle them to improve the wearing comfort of the finished products. The initial feel agent It is mainly aliphatic (non-silicon), which is mainly cationic, as well as nonionic, anionic and anion and zwitterionic. Among them, the cationic softener has the best softness performance, and the product appearance is generally emulsion-like, thick paste-like, high-concentration softening oil and wax-like soft flakes and soft beads. Later, with the discovery and application of the excellent performance of functional silicone polymers , The proportion of modified silicone polymers in hand finishing agents is increasing year by year, and has become a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/61C08G18/48C08G18/10C08G77/46D06M15/568D06M101/32D06M101/06
CPCC08G18/10C08G18/4825C08G18/755C08G77/46D06M15/568D06M2101/06D06M2101/32D06M2200/50C08G18/61
Inventor 张诚尹志红吕晓静
Owner ZHEJIANG UNIV OF TECH
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