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Method for manufacturing quaternary ammonium salt terminated hydrophilic block silicone oil

A technology of hydrophilic block and manufacturing method, applied in textiles, papermaking, fiber processing, etc., can solve the problems of pipeline corrosion, seriousness, complicated process, etc., and achieve the effects of low cost, smooth hand feeling, and simple process

Active Publication Date: 2018-09-14
SHEYANG TIANYUAN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process is relatively complicated, and 20% sulfuric acid solution is used, which causes serious corrosion to the pipeline

Method used

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  • Method for manufacturing quaternary ammonium salt terminated hydrophilic block silicone oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) In a 1000L reaction kettle equipped with a stirrer, a nitrogen gas feeding device, and a thermometer, add 500 kg of octamethylcyclotetrasiloxane (produced by Jiangxi Lanxinghuo Organic Silicon Co., Ltd.) and end epoxy silicone oil to extend the chain Agent (number average molecular weight is 1000, produced by Changzhou Guanghua Chemical New Material Co., Ltd.) 60 kilograms, catalyst tetramethylammonium hydroxide (produced by Yixing Kailida Chemical Co., Ltd.) 0.5 kilograms, at 100 ℃, react 4 Hours, the temperature was raised to 140° C. to remove the catalyst to obtain a linear silicone oil intermediate with epoxy groups at both ends. Cool down to 40°C, add 25 kg of polyethylene glycol diglycidyl ether (molecular weight 400), 15 kg of 3-dimethylamino-1-propylamine, and 50 kg of isopropanol while stirring, and heat up to 80°C to react 7 hour, lower the temperature to 40°C, add 20 kg of glacial acetic acid, stir for 20 minutes, cool down to room temperature and dischar...

Embodiment 2

[0025] (1) in the 1000L reactor that stirrer, nitrogen feed device, thermometer are housed, add 600 kilograms of octamethylcyclotetrasiloxane and 72 kilograms of terminal epoxy silicone oil chain extender (number average molecular weight is 1000), Catalyst 0.6 kg of tetramethylammonium hydroxide, react at 100°C for 4 hours, heat up to 140°C to remove the catalyst to obtain a linear silicone oil intermediate with epoxy groups at both ends. Cool down to 40°C, add 30 kg of polyethylene glycol diglycidyl ether (molecular weight 600), 18 kg of 3-dimethylamino-1-propylamine, and 60 kg of isopropanol while stirring, and heat up to 80°C to react 7 hour, lower the temperature to 40°C, add 24 kg of glacial acetic acid, stir for 20 minutes, lower to room temperature and discharge to obtain a quaternary ammonium salt-terminated hydrophilic block silicone oil.

[0026] The quality detection data of the hydrophilic block silicone oil terminated by the quaternary ammonium salt of the above-m...

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Abstract

The invention discloses a method for manufacturing quaternary ammonium salt terminated hydrophilic block silicone oil. According to the method, an organic silicon annulus and an epoxy-terminated silicone oil chain extender are adopted, linear silicone oil with epoxy groups at both ends is prepared through an equilibration reaction in an alkaline catalyst, the linear silicone oil is then subjectedto block copolymerization with polyethylene glycol diglycidyl ether and 3-dimethylamino-1-propylamine in an isopropanol solvent to obtain tertiary amine-terminated block silicone oil, and glacial acetic acid is finally added to react with the tertiary amine-terminated block silicone oil to prepare quaternary ammonium salt-terminated hydrophilic block silicone oil. The method provided by the invention is simple to operate, the raw materials are simple and easy to obtain, and a finished fabric not only has a smooth hand feeling, but also has a permanent hydrophilic effect, and has a broad marketprospect.

Description

technical field [0001] The invention belongs to the fields of chemical industry and macromolecular chemistry, and relates to the polymerization reaction of organosilicon, in particular to a method for manufacturing a hydrophilic block silicone oil capped with a quaternary ammonium salt as a textile auxiliary agent. Background technique [0002] In the textile printing and dyeing industry, silicone softeners can give fabrics a soft and smooth feel. With the improvement of living standards, especially high-grade clothing fabrics, not only require comfortable hand feeling, but also put forward higher requirements for air permeability and moisture absorption and perspiration performance. [0003] The main raw materials of hydrophilic textile softeners currently on the market are made after emulsification and compounding of softening olein and amino silicone oil. However, due to the presence of primary amino groups in the chemical structure of the amino silicone oil emulsion, it...

Claims

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Application Information

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IPC IPC(8): C08G77/46C08G81/00C08G77/14D06M15/647
CPCC08G77/14C08G77/46C08G81/00D06M15/647
Inventor 薛成强陈刚李维智
Owner SHEYANG TIANYUAN CHEM IND CO LTD
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