Preparation method of bilateral polyether modified amino silicon oil

A modification technology of amino silicone oil and polyether, which is applied in the chemical industry, can solve the problems of anti-yellowing, hydrophilic emulsion stability and poor adsorption, and achieve high controllability and hydrophilicity of ammonia value and hydrophilicity. Good water resistance and high stability

Inactive Publication Date: 2018-12-21
SHANGHAI INSTITUTE OF TECHNOLOGY
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above technical problems in the prior art, the invention provides a method for preparing a double-sided polyether-modified amino silicone oil, the preparation method of this double-sided polyether-modified amino silicone oil should solve the existing Technical problems of anti-yellowing property, hydrophilicity, emulsion stability and poor adsorption

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  • Preparation method of bilateral polyether modified amino silicon oil
  • Preparation method of bilateral polyether modified amino silicon oil

Examples

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Effect test

Embodiment 1

[0029] a. Preparation of amino hydrogen silicone oil

[0030] Mix 20 parts of KH602 and 18 parts of water in a closed four-necked flask and stir at a constant speed for hydrolysis, the hydrolysis temperature is 10°C, and the hydrolysis time is 2 hours; then maintain at -0.09MPa for 1 hour to remove low-molecular compounds; the viscosity obtained after standing still is 300mPa·s (25°C) KH602 hydrolyzate mainly composed of silicon glycol.

[0031] 71.9 parts of octamethylcyclotetrasiloxane (D 4 ) mixed with 20 parts of high hydrogen-containing silicone oil with a hydrogen content of 1.48%, and dehydrated at 65°C and -0.1MPa for 1h; KH602 hydrolyzate mixed, under high-purity nitrogen atmosphere, add 2 parts of sulfuric acid solution with a concentration of 98% by mass, add 2 parts of end-capping agent hexamethyldisiloxane (MM) after the viscosity of the system increases, and keep at 65°C React for 4 hours; cool down to below 50°C, add 4 parts of sodium bicarbonate powder to neu...

Embodiment 2

[0038] a. Preparation of amino hydrogen silicone oil

[0039] Mix 20 parts of KH602 and 18 parts of water in a closed four-necked flask and stir at a constant speed for hydrolysis, the hydrolysis temperature is 10°C, and the hydrolysis time is 2 hours; then maintain at -0.09MPa for 1 hour to remove low-molecular compounds; the viscosity obtained after standing still is 300mPa·s (25°C) KH602 hydrolyzate mainly composed of silicon glycol.

[0040] 87 parts of octamethylcyclotetrasiloxane (D 4 ) mixed with 9 parts of high hydrogen-containing silicone oil with a hydrogen content of 1.48%, and dehydrated at 65°C and -0.1MPa for 1h; KH602 hydrolyzate mixed, under high-purity nitrogen atmosphere, adding 2 parts of concentrated sulfuric acid with a mass percentage concentration of 98%, adding 2 parts of end-capping agent hexamethyldisiloxane (MM) after the system viscosity increased, keeping 65 ℃ for 4 hours; cool down to below 50℃, add 4 parts of sodium bicarbonate powder to neutra...

Embodiment 3

[0045] a. Preparation of amino hydrogen silicone oil

[0046] Mix 20 parts of KH602 and 18 parts of water in a closed four-necked flask and stir at a constant speed for hydrolysis, the hydrolysis temperature is 10°C, and the hydrolysis time is 2 hours; then maintain at -0.09MPa for 1 hour to remove low-molecular compounds; the viscosity obtained after standing still is 300mPa·s (25°C) KH602 hydrolyzate mainly composed of silicon glycol.

[0047] 78 parts of octamethylcyclotetrasiloxane (D 4 ) mixed with 15 parts of high hydrogen-containing silicone oil with a hydrogen content of 1.48%, and dehydrated at 65°C and -0.1MPa for 1 hour; KH602 hydrolyzate mixed, under high-purity nitrogen atmosphere, adding 2 parts of concentrated sulfuric acid with a mass percentage concentration of 98%, adding 2 parts of end-capping agent hexamethyldisiloxane (MM) after the system viscosity increased, keeping 65 ℃ for 4 hours; cool down to below 50℃, add 4 parts of sodium bicarbonate powder to n...

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Abstract

The invention provides a preparation method of bilateral polyether modified amino silicon oil. Octamethylcyclotetrasiloxane, methyl hydrogen silicone fluid, an amino silane coupling agent hydrolysateand hexamethyldisiloxane are adopted for synthesizing lateral-chain amino silicon oil with a main chain containing an Si-H bond, allyl polyether modification is conducted, and in the prepared polyether modified amino silicon oil, amino and polyether chain segments are evenly distributed on lateral chains separately, so that the structure defect problem that amino and polyether chain segments in existing amino and polyether blend modified silicon oil are not on lateral chains at the same time is solved. As the amino and the polyether chain segments in the prepared polyether modified amino silicon oil are distributed on the lateral chains separately, compared with the existing amino and polyether blend modified silicon oil, the polyether modified amino silicon oil has the advantages that thehydrophilic group extroversion is improved, hydrophilic group distribution is evener, the hydrophilicity is better, the adjustability of an amino value and the hydrophilicity is higher, prepared emulsion has higher stability, and the adsorbability onto a textile is better, so that a textile treatment effect is improved.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a textile processing aid, in particular to a preparation method of double-sided polyether-modified amino silicone oil. Background technique [0002] Amino silicone oil is a softening and finishing agent used in a large amount in the field of textile auxiliaries. In the process of application, there are disadvantages such as easy yellowing of amino silicone oil, reduction of hydrophilicity and uneven distribution of amino groups. Polyether amino co-modified silicone oil can overcome yellowing to a certain extent, improve the hydrophilicity of amino silicone oil, and make the fabric treatment effect better; the amino group and polyether group in the existing polyether amino co-modified silicone oil structure The distribution is generally in the form of side chain / block-block type, block-side chain type, end group-block type, block-block / end group, and polyether group on the amino seg...

Claims

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Application Information

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IPC IPC(8): C08G77/46
CPCC08G77/46
Inventor 吴蓁李德全何辛高晟弢姜琴王一鸣张英强
Owner SHANGHAI INSTITUTE OF TECHNOLOGY
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