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Method for preparing hydroxyl-terminated phenyl amino polyether modified silicone oil

A technology for modification of phenylamino-terminated polyether and polyether, which is applied in textiles, papermaking, fiber treatment, etc., to achieve good smooth hand feeling and good stability

Active Publication Date: 2013-10-02
黄山市强力化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no silicone polymer that provides heat resistance while maintaining softness and anti-yellowing

Method used

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  • Method for preparing hydroxyl-terminated phenyl amino polyether modified silicone oil
  • Method for preparing hydroxyl-terminated phenyl amino polyether modified silicone oil
  • Method for preparing hydroxyl-terminated phenyl amino polyether modified silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Preparation of a hydroxyl-terminated phenylamino polyether modified silicone oil

[0025] Step 1) Preparation of polyether-modified aminosilane: Add 150g of 3-piperazinylpropylmethyldimethoxysilane and 175g of alkyl epoxy polyether into a fully dried reaction kettle, seal it and raise the temperature After reaching 60°C, stirring and reacting for 60 minutes; adding catalyst tetramethylammonium hydroxide accounting for 1% of the total weight of the reactants, and continuing to keep warm for 5 hours to obtain the product; the structural formula of the alkyl epoxy polyether is as follows:

[0026]

[0027] In the formula: a and b are both positive integers, and: a=2~8, b=2~15, 0≤n≤4 (integer).

[0028] Step 2) Preparation of hydroxy-terminated phenylamino polyether-modified silicone oil: Take 100g of polyether-modified aminosilane, 200g of dimethoxydiphenylsilane, and 20g of octamethylcyclotetrasiloxane prepared above to react In the kettle, the temperature ...

Embodiment 2

[0031] Example 2: Preparation of a hydroxyl-terminated phenylamino polyether modified silicone oil

[0032] Step 1) Preparation of polyether-modified aminosilane: Add 250g of 3-cyclohexyl-aminopropylmethyldimethoxysilane and 85g of alkyl epoxy polyether into a fully dried reaction kettle, seal it and raise the temperature to 95°C, stirred and reacted for 30 minutes; added a catalyst tetrabutylphosphine hydroxide accounting for 5% of the total weight of the reactants, and continued the heat preservation reaction for 1 hour to obtain final product; the structural formula of the alkyl epoxy polyether is as follows:

[0033]

[0034] In the formula: a and b are both positive integers, and: a=2~8, b=2~15, 0≤n≤4 (integer).

[0035] Step 2) Preparation of hydroxyl-terminated phenylamino polyether-modified silicone oil: add 100 g of polyether-modified aminosilane, 50 g of diphenyldimethoxysilane, and 200 g of octamethylcyclotetrasiloxane prepared above to the reaction In the kettl...

Embodiment 3

[0039] Example 3: Preparation of a hydroxyl-terminated phenylamino polyether modified silicone oil

[0040] Step 1) Preparation of polyether-modified aminosilane: Add 20g of 3-(N,N-dimethylaminopropyl)-aminopropylmethyldimethoxysilane and 120g of alkyl epoxy polyether to In a well-dried reaction kettle, heat up to 85°C in airtight conditions, and stir for 45 minutes to react; add catalyst tetramethylammonium hydroxide accounting for 3% of the total weight of the reactants, and continue to keep warm for 3 hours to obtain; the alkyl ring The structural formula of oxypolyether is as follows:

[0041]

[0042] In the formula: a and b are both positive integers, and: a=2~8, b=2~15, 0≤n≤4 (integer).

[0043]Step 2) Preparation of hydroxyl-terminated phenylamino polyether-modified silicone oil: add 200 g of polyether-modified aminosilane, 150 g of diphenyldimethoxysilane, and 100 g of octamethylcyclotetrasiloxane prepared above to the reaction In the still, heat up to 100°C; add...

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Abstract

The invention discloses a method for preparing hydroxyl-terminated phenyl amino polyether modified silicone oil. The method comprises the following steps: preparing polyether modified amino silane by using amino silane and alkyl epoxy polyether; and preparing the silicon oil by the polyether modified amino silane, phenylsilane and octamethylcyclotetrasiloxane in the presence of a catalyst. Compared with the prior art, phenyl silane, polyether modified amino silane and octamethylcyclotetrasiloxane are synthesized into a brand-new hydroxyl-terminated phenyl polyether modified silicone oil through a polymerization balanced reaction. The microemulsion type softener emulsified by the silicone oil is soft and smooth in hand feel and excellent in yellowing resistance and temperature resistance when used for finishing textiles; the product is good in stability of shear force, centrifugal force, electrolyte, hard water and the like, and is particularly suitable for surface treatment of polyester fibers.

Description

technical field [0001] The invention relates to a silicone polymer, in particular to a preparation method of hydroxyl-terminated phenylamino polyether modified silicone oil. Background technique [0002] Amino-modified silicone oil is widely used in textile printing and dyeing, leather, papermaking, and daily necessities care due to its excellent and outstanding soft and smooth feel. However, because the contained amino groups, especially the primary amino groups, are easily oxidized, the white and light-colored fabrics after finishing are yellowed, and the temperature resistance of the amino groups is poor, which affects the finishing effect of the fabric and the aesthetics of clothing. There are many ways to modify amino groups to inhibit or reduce yellowing. Such as modification with epoxy group, epoxy group and acrylate co-modification; modification with polyether isocyanate and epoxy; modification with polyether carboxylic acid containing amide group; modification with...

Claims

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Application Information

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IPC IPC(8): C08G77/46D06M15/647
Inventor 邱万军叶光华
Owner 黄山市强力化工有限公司
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