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Amino-modified silicone oil containing long-chain alkyl and preparation method of amino-modified silicone oil

A technology of amino-modified silicone oil and long-chain alkyl group, which is applied in the directions of improved hand-feeling fibers, textiles and papermaking, fiber processing, etc., to achieve the effects of reducing surface tension, increasing waterproof performance, and simple preparation method

Inactive Publication Date: 2019-08-27
ZHEJIANG UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no report about the amino-modified silicone oil containing long-chain alkyl groups of the present invention and its preparation method

Method used

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  • Amino-modified silicone oil containing long-chain alkyl and preparation method of amino-modified silicone oil
  • Amino-modified silicone oil containing long-chain alkyl and preparation method of amino-modified silicone oil
  • Amino-modified silicone oil containing long-chain alkyl and preparation method of amino-modified silicone oil

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Embodiment 1

[0034] (1) Preparation of amino-terminated silicone intermediate: Add 0.01mol of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane to the reaction flask in sequence (molecular weight: 362.61), 0.015 mol of polyetheramine D220, and react at a temperature of 100° C. for 10 hours to obtain an amino-terminated organosilicon intermediate.

[0035] (2) Preparation of amino-modified silicone oil containing long-chain alkyl groups: sequentially add 2 g of the amino-terminated organosilicon intermediate obtained in step (1), 100 g of organosilicon monomer octamethylcyclotetrasiloxane, 2g of octaalkylmethyldimethoxysilane as a coupling agent, stir and heat up, add 0.05g of basic catalyst tetramethylammonium hydroxide at 60°C, continue to heat up to 100°C, react for 4 hours, then heat up to 145°C Carry out vacuum distillation to remove low boilers and catalysts to obtain amino-modified silicone oil containing long-chain alkyl groups.

Embodiment 2

[0037] (1) Preparation of amino-terminated silicone intermediate: Add 0.01mol of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane to the reaction flask in sequence (molecular weight: 362.61), 0.02 mol of polyetheramine D230, and react at a temperature of 110° C. for 8 hours to obtain an amino-terminated organosilicon intermediate.

[0038] (2) Preparation of amino-modified silicone oil containing long-chain alkyl groups: sequentially add 4 g of the amino-terminated organosilicon intermediate obtained in step (1), 100 g of organosilicon monomer octamethylcyclotetrasiloxane, Coupling agent dodecylmethyldimethoxysilane 3g, stir and heat up, add basic catalyst potassium hydroxide 0.07g at 70°C, continue to heat up to 110°C, react for 5 hours, then heat up to 150°C to reduce Low boilers and catalysts are removed by pressure distillation to obtain amino-modified silicone oil containing long-chain alkyl groups.

Embodiment 3

[0040] (1) Preparation of amino-terminated silicone intermediate: Add 0.01mol of 1,3-bis(3-glycidylpropyl)-1,1,3,3-tetramethyldisiloxane to the reaction flask in sequence (Molecular weight: 362.61), 0.03 mol of polyetheramine D230, and react at a temperature of 90° C. for 4 hours to obtain an amino-terminated organosilicon intermediate.

[0041] (2) Preparation of amino-modified silicone oil containing long-chain alkyl groups: sequentially add 5 g of amino-terminated organosilicon intermediate obtained in step (1), 100 g of organosilicon monomer dimethylcyclosiloxane mixture, Coupling agent hexadecylmethyldimethoxysilane 3.5g, stir and heat up, add 0.1g of alkaline catalyst sodium hydroxide at 50°C, continue to heat up to 105°C, react for 3 hours, then heat up to 140°C Low boilers and catalysts were removed by distillation under reduced pressure to obtain amino-modified silicone oil containing long-chain alkyl groups.

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Abstract

The invention discloses amino-modified silicone oil containing long-chain alkyl and a preparation method of the amino-modified silicone oil. The preparation method comprises the steps that 1,3-bis( 3-glycidoxypropyl)-1,1,3,3-tetramethyldisiloxane and polyether amine are added into a reaction bottle in sequence to react to obtain an amino-capped organosilicone intermediate; the amino-capped organosilicone intermediate prepared in the last step, an organosilicone monomer and a long-chain alkyl coupling agent are stirred and heated, a temperature-rise reaction continues by adding a basic catalyst, finally, reduced pressure distillation is conducted to remove low-boiling-point substances and the catalyst, and the amino-modified silicone oil containing the long-chain alkyl is obtained. Hydrophobic groups of the amino-modified silicone oil containing the long-chain alkyl can be attached to the surface of fibers, the surface tension of the fibers is reduced, and the water-proof performance isthus improved; the molecular structure of the silicone oil can freely rotate, and the coefficients of dynamic and static friction between the fibers can be reduced; after the amino-modified siliconeoil is used for treating a fabric, the fabric can be flat and smooth and has a good soft and resilient handfeeling; the preparation method is simple, and the reaction process is easy to control.

Description

technical field [0001] The invention relates to the technical field of textile chemical industry, in particular to an amino-modified silicone oil containing long-chain alkyl groups and a preparation method thereof. Background technique [0002] Under strong alkali or high temperature polar conditions, the silicon-oxygen bond on the main chain of silicone material will be polarized. During the fabric treatment, the polar groups can form hydrogen bonds or other chemical bonds with the inner groups of the fibers, which can be more firmly attached to the surface of the fabric. Other non-polar groups will be distributed on the outermost layer of the fiber, and some hydrophobic groups will be attached to the surface of the fiber to reduce the surface tension and increase the waterproof performance. Since the internal polar groups are firmly attached to the inside of the fiber, it can still maintain good hydrophobic performance after washing with water. At the same time, with Si-...

Claims

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Application Information

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IPC IPC(8): C08G77/26C08G77/46D06M15/643D06M15/647
CPCC08G77/26C08G77/46D06M15/6436D06M15/647D06M2200/50
Inventor 王建黎彭敏徐山山吴德举
Owner ZHEJIANG UNIV OF TECH
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