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Block type amino polyether modified silicone oil and preparation method thereof

An amino polyether modified and block-type technology, which is applied in textiles, papermaking, fiber treatment, etc., can solve the problems of softness, hygroscopicity and yellowing inhibition of textile fabrics that cannot be in a good state at the same time, and achieve good softness Effect

Active Publication Date: 2011-11-23
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] The purpose of the present invention is to provide a block-type amino polyether modified silicone oil and its preparation method, to solve the problem of the softness, hygroscopicity and yellowing inhibition of the treated textile fabric after the existing modified silicone oil is used as a softener to treat textile fabrics. The problem of not being able to achieve a good state at the same time

Method used

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  • Block type amino polyether modified silicone oil and preparation method thereof
  • Block type amino polyether modified silicone oil and preparation method thereof
  • Block type amino polyether modified silicone oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Preparation of block-type aminoalkoxy modified silicone oil

[0021] Put 298.0g of hydroxyl-terminated organosilicon polysiloxane and 150.0g of isopropanol into a fully dried 1000mL three-port reactor, stir and raise the temperature to 65°C, add 1.5g of dibutyltin dilaurate and 5.25g of diethanolamine, stirred and reacted for 30 minutes, then heated up to 105°C and condensed for 6 hours under reflux conditions, and finally heated up to 145°C, decompressed to remove solvent and low-molecular substances, and obtained colorless, transparent, viscosity (25°C) after cooling ) is 500mPa·S, and the non-volatile matter content is 98.7% (105°C / 3h) block-type aminoalkoxy modified silicone oil.

Embodiment 2

[0022] Example 2: Preparation of block-type aminoalkoxy modified silicone oil

[0023] Put 298.0g of hydroxyl-terminated organosilicon polysiloxane and 120.0g of acetone into a fully dried 1000mL three-port reaction kettle, stir and raise the temperature to 85°C, add 2.0g of dibutyltin dilaurate and 15.75g Diethanolamine, stirred and reacted for 30 minutes, then heated up to 105°C and condensed for 8 hours under reflux conditions, and finally heated up to 145°C, decompressed to remove solvent and low-molecular substances, and obtained a colorless and transparent product with a viscosity (25°C) of 200mPa·S, non-volatile matter content 96.7% (105℃ / 3h) block type aminoalkoxy modified silicone oil.

Embodiment 3

[0024] Example 3: Preparation of block-type amino polyether modified silicone oil

[0025] Take 100g of the silicone oil A prepared in Example 1 above, dissolve it in a 1000mL three-necked flask with 100g of toluene, stir evenly, then add 7.5g of polyoxyethylene butyl glycidyl ether, heat up to 105°C, and stir for 12 hours. Then the solvent was removed under reduced pressure at 105°C to obtain the block-type aminopolyether-modified silicone oil. The structural formula is as follows:

[0026]

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Abstract

The invention discloses block type amino polyether modified silicone oil and a preparation method thereof. The method comprises the steps of: based on the activity of hydroxy in organosilicon polysiloxane and diethanol amine, subjecting the organosilicon polysiloxane end capped by hydroxy and diethanol amine to a dehydration condensation reaction catalyzed by organotin for preparing block type ammonia alkoxy modified silicone oil, then by utilizing the reaction activity of amido hydrogen in the block type ammonia alkoxy modified silicone oil, as well as the reactivity of vinyl or epoxy group containing reaction type polyether with amido hydrogen, in a solvent and under a heating condition, reacting amido hydrogen in the block type ammonia alkoxy modified silicone oil with active groups in polyether molecule, thus obtaining the block type amino polyether modified silicone oil after synthesis. The oil of the invention can be used as a softener to treat textile fabrics. And textile fabrics treated by the oil can have the characteristics of flexibility, hygroscopicity, resistance to yellowing, antistatic property and the like.

Description

technical field [0001] The invention relates to a block type organosilicon copolymer, in particular to a synthesis method of block type polyether amino-modified organosilicon polysiloxane. Background technique [0002] At present, various modified silicone oils have a wide range of applications in fabric softness and simulated finishing, shampoo and daily chemistry due to their good hydrophilicity, strong hygroscopicity, softness, antistatic, wetting and other functions. application. Modified silicone oil is used in fabric softening and simulated finishing, polyether modified silicone and amino modified silicone are the two most common. Its polyether-modified silicone is non-reactive, has good water solubility, and does not need to be emulsified when used. The finished fabric is soft and comfortable, and has certain water absorption, antistatic and antifouling properties, but its durability is poor. Amino-modified silicone is a reactive type, which has excellent softness, ...

Claims

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Application Information

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IPC IPC(8): C08G81/00C08G77/388D06M15/647
Inventor 叶光华邱万军
Owner 黄山市强力化工有限公司