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Foam inhibitor and preparation method thereof

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

Active Publication Date: 2015-03-18
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

[0052] 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 Hydrogen-containing polyorganosiloxane, 120g α-hexadecene, 100g CH 2 =CHCH 2 O(EO) 50 (PO) 50 H and isopropanol solution of chloroplatinic acid with a platinum content of 7ppm were reacted at 150°C for 2h; then 20g of silicone resin (M:Q = 0.75:1) and 25g of a specific surface area of ​​200m 2 / g of hydrophobic precipitated silica, the temperature was lowered to 100°C and kept for 2 hours to obtain foam inhibitor S1 with a viscosity of 100,000mPa·s.

Embodiment 2

[0054] 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 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 at 110°C for 1.5h; then add 23g of silicone resin (M:Q = 0.68:1) and 30g of silicone resin with a specific surface area of ​​80m 2 / g of hydrophobic precipitated silica, lower the temperature to 80°C and keep it warm for 3 hours to obtain foam inhibitor S2 with a viscosity of 40,000mPa·s.

Embodiment 3

[0056] Add 500g to the container, the viscosity is 200mPa·s, the structural formula is H Me 2 SiO( Me HSiO) 20 ( Me 2 SiO) 150 Si Me 2Hydrogen polyorganosiloxane of H, 150g α-decene, 90g CH 2 =CHCH 2 O(EO) 40 (PO) 10 H and isopropanol solution of chloroplatinic acid with a platinum content of 11ppm were reacted at 120°C for 2h; then 30g of silicone resin (M:Q = 0.8:1) and 20g of a specific surface area of ​​130m were added 2 / g of hydrophobic fumed silica, lower the temperature to 80°C and keep it warm for 3 hours to obtain foam inhibitor S3 with a viscosity of 60,000mPa·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

technical field [0001] 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 [0002] 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, affecting ...

Claims

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Application Information

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Patent Type & Authority Patents(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