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Foam inhibitor and preparation method thereof

A foam suppression, emulsion type defoamer technology, applied in the direction of foam dispersion/prevention, etc., can solve the problems of large amount of addition, low polyether siloxane defoaming efficiency, increased production cost, etc., and achieves strong foam control ability, The effect of improving compatibility and good compatibility

Active Publication Date: 2013-09-04
JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through the introduction of hydrophilic chain segments, polyether siloxane has high compatibility with the foaming system, but the defoaming efficiency of polyether siloxane is low, and the addition amount is large, which increases the production cost

Method used

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  • Foam inhibitor and preparation method thereof
  • Foam inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Add 500g to the container, the viscosity is 1500mPa·s, and the structural formula is Me 3 SiO( Me HSiO) 40 ( Me 2 SiO) 290 Si Me 3 Of hydrogen-containing polyorganosiloxane, 120g α-hexadecene, 100g CH 2 =CHCH 2 O(EO) 50 (PO) 50 H and a chloroplatinic acid isopropanol solution with a platinum content of 7ppm, react at 150℃ for 2h; then add 20g silicone resin (M:Q = 0.75:1) and 25g with a specific surface area of ​​200m 2 / g of hydrophobic precipitated silica, the temperature is lowered to 100°C and kept for 2h to obtain foam inhibitor S1 with a viscosity of 100000mPa·s.

Embodiment 2

[0055] Add 500g to the container, the viscosity is 300mPa·s, and the structural formula is Me 3 SiO( Me HSiO) 60 ( Me 2 SiO) 120 Si Me 3 Of hydrogen-containing polyorganosiloxane, 391g α-dodecene, 70gCH 2 =CHCH 2 O(EO) 20 (PO) 40 CH 3 React with isopropanol solution of chloroplatinic acid with a platinum content of 3ppm, react at 110℃ for 1.5h; then add 23g silicone resin (M:Q = 0.68:1) and 30g with a specific surface area of ​​80m 2 / g of hydrophobic precipitated silica, the temperature is lowered to 80°C and kept for 3 hours to obtain foam inhibitor S2 with a viscosity of 40,000 mPa·s.

Embodiment 3

[0057] Add 500g to the container, the viscosity is 200mPa·s, and the structural formula is H Me 2 SiO( Me HSiO) 20 ( Me 2 SiO) 150 Si Me 2 H-containing hydrogen-containing polyorganosiloxane, 150g α-decene, 90g CH 2 =CHCH 2 O(EO) 40 (PO) 10 H and a chloroplatinic acid isopropanol solution with a platinum content of 11ppm, react at 120°C for 2h; then add 30g silicone resin (M:Q = 0.8:1) and 20g with a specific surface area of ​​130m 2 / g of hydrophobic fumed silica, the temperature is lowered to 80° C. and kept for 3 hours to obtain foam inhibitor S3 with a viscosity of 60,000 mPa·s.

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Abstract

The present invention relates to a foam inhibitor and a preparation method thereof. The preparation method comprises that hydrogen-containing polyorganosiloxane, an unsaturated polyether and alpha-olefin are subjected to a polymerization reaction under an acid catalyst effect through active groups such as -H and CH2=CH- to obtain alkyl-unsaturated polyether co-modified polyorganosiloxane, and then hydrophobic particles and an organosilicon resin are added to carry out a mixing treatment to obtain the foam inhibitor, wherein the foam inhibitor is used for preparing an emulsion type antifoaming agent, and a foam elimination and inhibition effect in a liquid detergent is significant while clarity of the liquid detergent is not affected.

Description

[0001] technical field [0002] The present invention relates to a suds suppressor that can be used as a foam control ingredient in different types of detergent products without affecting the clarity of the detergent. Therefore, the present invention belongs to the technical field of fine chemical preparations. Background technique [0003] Proper suds during washing can suspend dirt and prevent it from re-depositing on the surface of washed items. With the continuous improvement of mechanization and intelligence in the cleaning field, the use of ordinary detergents will produce a large amount of foam during the cleaning process. Too much foam will cause unnecessary troubles for consumers to wash clothes. For example, foam overflowing in the washing machine will not only cause Environmental pollution, and increase the operation of foam cleaning, and waste water and time when rinsing. Too much foam will also affect the free movement of the fabric in the washing machine, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/04
Inventor 李亚孟飞吴飞曹添黄伟
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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