A kind of preparation method of polyether modified silicone type defoamer

A technology of polyether modification and silicone, applied in the field of cleaning, can solve the problems of shortened cleaning agent life, reduced cleaning efficiency, and easy residue, etc., and achieve the effect of overcoming the induction period, increasing the reaction rate, and increasing the conversion rate

Active Publication Date: 2021-07-30
WUHAN SPACEFLIGHT SCI & TECH PETROCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, water-based metal cleaning agents are prone to foaming and residues. In severe cases, the foam overflows and takes away a large amount of surfactant, which shortens the life of the cleaning agent, and the foam will reduce the cleaning efficiency.

Method used

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  • A kind of preparation method of polyether modified silicone type defoamer
  • A kind of preparation method of polyether modified silicone type defoamer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The invention provides a preparation method of a novel high-efficiency cleaning agent, comprising the following steps:

[0029] The formula of cleaning agent is: alkyl glycoside 8-15%, fatty alcohol polyoxyethylene ether 2-8%, nonylphenol polyoxyethylene ether 10-15%, coconut oil fatty acid diethanolamide 10-15%, Foaming agent ED30602-5%, polyether modified silicone type defoamer 5%-8%, water balance;

[0030] Wherein the preparation method of polyether modified silicone type defoamer is:

[0031] S1: prepare hydrogen-containing silicone oil: with 0.15g solid superacid, catalyze 10kg of hexamethyldisiloxane, 6kg of octamethylcyclotetrasiloxane, 8kg of tetramethylcyclotetrasiloxane, heated in a water bath for 35 ℃, react for 6h, filter to obtain hydrogen-containing silicone oil;

[0032] S2: 10 μg platinum catalyst, 100 μg polyethylene glycol 400, 20g propyl acetate and 10g hydroquinone are dropped into the reactor containing the hydrogen-containing silicone oil of 1kg...

Embodiment 2

[0036] The invention provides a preparation method of a novel high-efficiency cleaning agent, comprising the following steps:

[0037] The formula of cleaning agent is: alkyl glycoside 8-15%, fatty alcohol polyoxyethylene ether 2-8%, nonylphenol polyoxyethylene ether 10-15%, coconut oil fatty acid diethanolamide 10-15%, Foaming agent ED30602-5%, polyether modified silicone type defoamer 5%-8%, water balance;

[0038] Wherein the preparation method of polyether modified silicone type defoamer is:

[0039] S1: prepare hydrogen-containing silicone oil: use 0.2g solid super acid to catalyze 10kg of hexamethyldisiloxane, 6kg of octamethylcyclotetrasiloxane, 8kg of tetramethylcyclotetrasiloxane, heat in a water bath for 35 ℃, react for 6h, filter to obtain hydrogen-containing silicone oil;

[0040] S2: 20 μg platinum catalyst, 150 μg polyethylene glycol 400, 35g propyl acetate and 20g hydroquinone are put into the reactor containing the hydrogen-containing silicone oil of 1kg, sti...

Embodiment 3

[0044] The invention provides a preparation method of a novel high-efficiency cleaning agent, comprising the following steps:

[0045] The formula of cleaning agent is: alkyl glycoside 8-15%, fatty alcohol polyoxyethylene ether 2-8%, nonylphenol polyoxyethylene ether 10-15%, coconut oil fatty acid diethanolamide 10-15%, Foaming agent ED30602-5%, polyether modified silicone type defoamer 5%-8%, water balance;

[0046] Wherein the preparation method of polyether modified silicone type defoamer is:

[0047] S1: prepare hydrogen-containing silicone oil: with 0.25g solid super acid, catalyze 10kg of hexamethyldisiloxane, 6kg of octamethylcyclotetrasiloxane, 8kg of tetramethylcyclotetrasiloxane, heated in a water bath for 35 ℃, react for 6h, filter to obtain hydrogen-containing silicone oil;

[0048] S2: 30 μg platinum catalyst, 200 μg polyethylene glycol 400, 50g propyl acetate and 30g hydroquinone are dropped into the reactor containing the hydrogen-containing silicone oil of 1k...

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PUM

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Abstract

The invention provides a preparation method of a novel high-efficiency cleaning agent, wherein the formula of the cleaning agent is: 8-15% of alkyl glycoside, 2-8% of fatty alcohol polyoxyethylene ether, 10-15% of nonylphenol polyoxyethylene ether %, coconut oil fatty acid diethanolamide 10‑15%, antifoam agent 2‑5%, polyether modified silicone type defoamer 5%‑8%, water balance; of which polyether modified silicone type defoamer The preparation method of the foaming agent is as follows: preparing hydrogen-containing silicone oil; preparing mixed solution A; synthetic reaction; obtaining viscous solid B which is the polyether modified silicone type defoamer. The object of the present invention is to provide a preparation method of a cleaning agent with low foam height and good cleaning effect.

Description

technical field [0001] The invention relates to the field of cleaning technology, in particular to a preparation method of a polyether-modified organosilicon type defoamer. Background technique [0002] After the metal workpiece is processed, the surface will carry dirt, such as various cutting fluids, guide oil, etc. If it is not cleaned, it will not only affect the smooth progress of the processing process, but also cause and accelerate the corrosion of the metal surface, affecting the processing quality and use of the product. life. In addition, the cleaning process is inseparable from electroplating, phosphating (silanization), glazing, painting and other finishing processes, as well as in the repair and maintenance of mechanical equipment. The selection of cleaning process and the quality of cleaning effect not only involve major issues such as safety, energy and environmental protection, but also directly affect the performance and quality of products. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/825C11D3/37C11D3/60C08G77/46
CPCC08G77/46C11D1/008C11D1/66C11D1/662C11D1/72C11D1/825C11D3/3707C11D3/373
Inventor 倪维力李松彭钰珩袁婷婷喻翔沈东晓
Owner WUHAN SPACEFLIGHT SCI & TECH PETROCHEM CO LTD
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