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Method for preparing durable hydrophilic polyether modified amino polysiloxane soft agent

A technology of aminopolysiloxane and aminosilane coupling agent, which is applied in the field of preparation of durable hydrophilic polyether modified aminopolysiloxane softener, can solve the problem of limited improvement of silicone oil softness, easy gelation, Affect the hand feeling and other problems, to achieve the effect of increasing the wearing performance, improving softness and smooth hand feeling

Inactive Publication Date: 2009-04-29
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ordinary bisaminopolysiloxane softener (referring to the amino silicone oil synthesized by N-βaminoethyl-γ-iminopropylmethyldimethoxysilane coupling agent 602), silicone oil The improvement of softness is also limited. The reason is that once the amount of coupling agent and the viscosity of silicone oil increase, gels will easily appear during the modification process. In order to avoid the appearance of gels, the amount of coupling agent should not be too large, and the viscosity of amino silicone oil will also increase Can not be too high, thus affecting the improvement of the feel
[0009] And whether it is the hydrophilic silicone oil produced by the first or the second synthesis method, there is a problem that the hydrophilicity cannot last, which has brought great troubles to printing and dyeing enterprises and auxiliary manufacturers.

Method used

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  • Method for preparing durable hydrophilic polyether modified amino polysiloxane soft agent
  • Method for preparing durable hydrophilic polyether modified amino polysiloxane soft agent
  • Method for preparing durable hydrophilic polyether modified amino polysiloxane soft agent

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Embodiment 1

[0044] A preparation method of a durable hydrophilic polyether-modified aminopolysiloxane softener, comprising the following steps: (1) firstly prepare an aminosilane coupling agent hydrolyzate, put in the aminosilane coupling agent, and slowly Add excess deionized water dropwise, after dropping, stir at a constant temperature of 70°C for 3 hours, then add toluene, azeotropically dehydrate, and steam the toluene to obtain high-viscosity aminosilane coupling agent hydrolyzate; Cyclotetrasiloxane and aminosilane coupling agent hydrolyzate are used as raw materials, and the bulk polymerization method is adopted, and the temperature is raised to 100°C under the condition of basic catalyst and magnetic stirring, and the reaction is carried out for 20 hours, and the ring-opening polymerization produces amino polyorganosilicon with high ammonia value Oxane softener, the catalyst adopts (CH 3 ) 4 NOH, the amount used is to add 10mg (CH 3 ) 4 NOH. After reaching equilibrium, use a ...

Embodiment 2

[0046] A preparation method of a durable hydrophilic polyether-modified aminopolysiloxane softener, comprising the following steps: (1) firstly prepare an aminosilane coupling agent hydrolyzate, put in the aminosilane coupling agent, and slowly Drop in excess deionized water, after the drop, stir at a constant temperature of 90°C for 3 hours, then add toluene, azeotropically dehydrate, and steam the toluene to obtain a high-viscosity aminosilane coupling agent hydrolyzate; Cyclotetrasiloxane and aminosilane coupling agent hydrolyzate are used as raw materials, using bulk polymerization method, heating up to 160°C under alkaline catalyst and magnetic stirring, reacting for 2 hours, and ring-opening polymerization to form amino polyorganosilicon with high ammonia value Oxane softening agent, the catalyst uses NaOH, and the amount used is to add 100 mg of catalyst NaOH to 1 g of octamethylcyclotetrasiloxane. After reaching equilibrium, use a vacuum pump to pump out the unreacted ...

Embodiment 3

[0048] A preparation method of a durable hydrophilic polyether-modified aminopolysiloxane softener, comprising the following steps: (1) firstly prepare an aminosilane coupling agent hydrolyzate, put in the aminosilane coupling agent, and slowly Drop in excess deionized water, after the drop, stir at a constant temperature of 85°C for 3 hours, then add toluene, azeotropically dehydrate, and steam the toluene to obtain a high-viscosity aminosilane coupling agent hydrolyzate; Cyclotetrasiloxane and aminosilane coupling agent hydrolyzate are used as raw materials, and the bulk polymerization method is adopted, and the temperature is raised to 120°C under basic catalyst and magnetic stirring, and the reaction is carried out for 10 hours. The catalyst adopts (CH 3 ) 4 NOH, the amount used is to add 45mg (CH 3 ) 4 NOH, ring-opening polymerization to generate amino polyorganosiloxane softener with high ammonia value. After reaching equilibrium, use a vacuum pump to pump out the unr...

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Abstract

The invention discloses a method for preparing a perdurable hydrophilic polyether modified amino-polysiloxane softener. The method is characterized by comprising the following steps: octamethylcy-clotetrasiloxane and amino silane coupling agents with different structures are used as raw materials; with a bulk polymerization method, under the analysis of an alkali catalyst, firstly, an amino organic polysiloxane softener with high ammonia value is generated through ring-opening polymerization; and secondly, on the basis of the amino organic polysiloxane softener, amidogen is subjected to etherifying modification, thereby synthesizing the hydrophilic polyether modified amino-polysiloxane softener with good hand feeling and hydrophilic property. The prepared softener keeps the hydrophilic property and simultaneously improves the softness of hydrophilic silicon oil so that the hand feeling of textile can reach the hand feeling of the prior linearity amino silicon oil after the textile is treated by the softener and the treated textile can keep the hydrophilic property permanently.

Description

technical field [0001] The invention relates to a preparation method of durable hydrophilic polyether modified aminopolysiloxane softener. Background technique [0002] The fabric softener made of silicone is a kind of softener with wide application, good performance and outstanding effect in textile. Among them, amino-functional polyorganosiloxane is one of the fastest-growing products in silicone softeners. Because it leads to the "inner softness" of the fiber, it is often called "advanced softening agent" and "king of softeners". It can be widely used in the soft finishing of various textiles. It can endow fabrics with unique properties such as smoothness, softness, fullness, crispness, and drape. And the finished fabric also has good washability, and is very popular and loved by people. However, the aminopolysiloxane softener widely used in the industry can endow the fabric with super softness, elasticity and washability, but its strong hydrophobicity seriously affect...

Claims

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Application Information

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IPC IPC(8): D06M15/647C08G77/46C08J3/03C08L83/12
Inventor 胡玲玲
Owner SHAOXING UNIVERSITY
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