Defoaming agent for liquid detergent

A technology for liquid detergents and defoaming agents, applied in detergent compounding agents, detergent compositions, liquid degassing and other directions, can solve problems such as poor compatibility and inability to achieve the effect of compounding multiple emulsifiers. , to achieve excellent clarity, excellent stability, good emulsification and dispersion effect

Active Publication Date: 2014-11-05
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

For silicone compositions with alkyl groups, common polyoxyalkylene siloxane-containing silicone polymers are compatible with the silicone composition due to the presence of the alkyl group Sex is not strong
At the same time, a single emulsifier cannot achieve the effect of compounding multiple emulsifiers

Method used

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  • Defoaming agent for liquid detergent
  • Defoaming agent for liquid detergent
  • Defoaming agent for liquid detergent

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0091] The preparation method of each modified polysiloxane is to first add the above-mentioned amount of A(I), A(II), A(III) and A(IV) into the reaction vessel, and add the catalyst A(V). React at 80-180°C for 0.5-3 hours to obtain modified polyorganosiloxane. Wherein the catalyst A (V) is an isopropanol solution of chloroplatinic acid with a platinum content of 5-15 ppm. In the preparation of the modified polysiloxane A1-1-4, the reaction temperature is 100-110° C., and the amount of the catalyst is 0.05-0.08% of the mass of the modified polysiloxane. In the preparation of A2-5-8, the reaction temperature is 110-130°C, and the amount of the catalyst is 0.04-0.06% of the mass of the modified polysiloxane. In the preparation of A-9-A-12, the reaction temperature is 100-110° C., and the amount of the catalyst is 0.05-0.08% of the mass of the modified polysiloxane.

[0092] Silicone composition B1 was prepared as follows:

[0093] Get 50g hydrogen-containing polyorganosiloxan...

Embodiment 1-10

[0106] The defoamer products of Examples 1-10 were prepared respectively according to the formula in Table 2.

[0107] Table 2

[0108]

[0109] The water in the above table is deionized water.

[0110]Preparation method of Example 1-3: mix component A and component B in Table 2, heat up to 55-60°C, stir evenly; keep the temperature constant, slowly add 40-50% of the components while stirring D and 90% of component C, adjust the pH to 6.5-7. Homogenize the above emulsion, and dilute with the remaining amount of component C and component D to obtain a defoamer product with corresponding solid content.

[0111] Preparation method of Example 4-7: mix component A and component B in Table 2, heat up to 60-70°C, stir evenly; keep the temperature constant, slowly add 30-35% of the components while stirring D and 85% of component C, adjust the pH to 6.5-7. Homogenize the above emulsion, and dilute with the remaining amount of component C and component D to obtain a defoamer pro...

Embodiment 10

[0113] The preparation method of Example 10: mix component A, component B and component E in Table 2, heat up to 50-80°C, and stir evenly; keep the temperature constant, and add 30-40% of component Divide D and 85% of component C, and adjust the pH to 6.5-7. Homogenize the above emulsion, dilute with the remaining amount of component C and component D, and add component F to obtain a defoamer product with corresponding solid content.

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Abstract

The invention discloses a defoaming agent for a liquid detergent. The defoaming agent comprises a component A1, a component A2, a component B, a component C and a component D, wherein the component A1 is modified organopolysiloxane obtained by reacting hydrogen-containing organopolysiloxane, unsaturated polyether and alpha-olefin; the component A2 is modified organopolysiloxane obtained by reacting hydrogen-containing organopolysiloxane, unsaturated polyether and bivinyl-terminated organopolysiloxane; the component B is an organic silicon composition composed of a polymer, silicon dioxide and organic silicon resin, wherein the polymer is composed of hydrogen-containing organopolysiloxane, acrylic ester and alpha-olefin; the component C is a thickening agent; and the component D is water. Due to the excellent compatibility between modified organopolysiloxane A1 and A2, the defoaming agent has excellent defoaming performance, stability and clarity in the liquid detergent.

Description

technical field [0001] The discovery provides a defoamer for liquid detergents, which has a strong foam control effect and can ensure the clarity of detergents, and belongs to the technical field of fine chemicals. Background technique [0002] Liquid detergents are people's daily necessities. They have the advantages of simple equipment and technology, convenient use, rapid dissolution, and milder to fabrics and skin. They have become the mainstream of washing products. Due to the high content of surfactants, there are many foams, and it is difficult to rinse clean, which not only wastes water resources, increases the cost of laundry, but also causes large-scale water pollution, which is not conducive to energy saving, emission reduction and environmental protection. [0003] Due to the low surface tension of the defoamer, it can quickly penetrate into the foam system and cause the foam to burst. Adding defoaming agents to liquid detergents can effectively solve the proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/37C11D3/60
CPCB01D19/04C11D3/0026C11D3/373C11D3/3738C11D3/3788C08L83/04C11D3/00C11D3/37B01D19/0409C08L83/08C08L2205/02C08L2205/025
Inventor 侯伟吴飞曹添黄伟杨有忠
Owner JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
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