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Organosilicon surfactant and preparation method and application thereof

A surfactant and organosilicon technology, applied in the directions of silicon-organic compounds, chemical instruments and methods, transportation and packaging, etc., to achieve good emulsifying effect, convenient use and simple emulsifying process.

Active Publication Date: 2013-07-03
广州标美药用辅料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silicone oils with different viscosities have different requirements on the HLB value of the emulsifier, and the HLB values ​​of different modified silicone oils generally have certain differences.

Method used

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  • Organosilicon surfactant and preparation method and application thereof
  • Organosilicon surfactant and preparation method and application thereof
  • Organosilicon surfactant and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] With stirring device, drum N 2 In the three-necked flask with device and thermometer, add 0.3mol allyl polyether formula (II) (m=10, n=6, R' is C 3 h 7 ), 0.3mol allyl polyether formula (III) (x=9, R is C 12 h 25 ), 0.5 mol of hydrogen-containing silicone oil with a hydrogen content of about 0.3% (mass percentage) (a+b+c≈80, it can be seen that b+c≈18, a:b:c≈62:9:9), Under the protection of nitrogen atmosphere, when the temperature is raised to 80°C, 0.03g of catalyst is added, and the reaction is continued at 120°C to 130°C until the system becomes transparent, and a light yellow transparent silicone surfactant is obtained.

Embodiment 2

[0032] With stirring device, drum N 2 In the three-necked flask with device and thermometer, add 0.2mol allyl polyether (II) (m=38, n=0, R′ is H), 0.3mol allyl polyether (III) (x=3, R is C 16 h 33 ), 0.4mol of hydrogen-containing silicone oil with a hydrogen content of about 0.2% (mass percentage) (a+b+c≈130, it can be seen that b+c≈20, a:b:c≈110:8:12), Under the protection of nitrogen atmosphere, when the temperature is raised to 100°C, 0.03g of catalyst is added, and the reaction is continued to 150°C to 160°C until the system becomes transparent, and a light yellow transparent silicone surfactant is obtained.

Embodiment 3

[0034] With stirring device, drum N 2 In the three-necked flask of device and thermometer, add 0.18mol allyl polyether (II) (m=2, n=30, R' is H), 0.2mol allyl polyether (III) (x=28, R is C 18 h 37 ), 0.32mol of hydrogen-containing silicone oil with a hydrogen content of about 0.35% (mass percentage) (a+b+c≈30, it can be seen that b+c≈20, a:b:c≈22:5:3), Under the protection of nitrogen atmosphere, when the temperature was raised to 90°C, 0.03g of catalyst was added, and the reaction was continued to 130°C-140°C until the system became transparent, and a light yellow transparent silicone surfactant was obtained.

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Abstract

The present invention discloses an organosilicon surfactant and a preparation method and application thereof. The organosilicon surfactant has a structure shown as a formula (I), wherein c is not 0; a, b and c are all integers and 10<a+b+c<200; m=0-40; n=0-30; x=3-30; x, m and n are integers, and m and n are not 0 simultaneously; R is a C6-C20 straight-chain alkyl or a isomer long-chain alkyl, or alkylphenyl group; and R' is H, CH3, C2H5, C3H7 or C4H9. The organosilicon surfactant has a novel structure, and excellent emulsifying ability. The organosilicon surfactant has excellent emulsifying ability for polydimethylsiloxane in a large viscosity range and various modified polydimethylsiloxane, can achieve good emulsion effects by single-use, and does not need to be compounded with other emulsifiers. The emulsification process is simple, a homogenizer or other special emulsification processes can be canceled, a stable O / W type silicone oil emulsion is prepared and the use is easy.

Description

technical field [0001] The invention relates to the field of organosilicon surfactant chemistry, in particular to an organosilicon surfactant and its preparation method and application. Background technique [0002] Silicone surfactant is a new type of surfactant developed along with new silicone materials. It has won a broad space for survival and development with its unique properties, and has become an increasingly important surfactant. [0003] Silicone surfactant mainly refers to a type of surfactant composed of polydimethylsiloxane as the hydrophobic main chain and introducing one or more organic polar groups into it. In addition to the common properties of ordinary surfactants, it also has better surface activity than ordinary surfactants. Static, defoaming, foam stabilizing, foaming and other properties. These properties are due to the low surface tension and weak intermolecular forces of polydimethylsiloxane. [0004] Emulsifier is an important part of emulsion, ...

Claims

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Application Information

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IPC IPC(8): B01F17/54B01F17/42B01F17/52C07F7/08C08G81/00C08J3/03C08L83/04C09K23/54C09K23/42C09K23/52
CPCC08G77/46
Inventor 黄振宏谢秀鸿
Owner 广州标美药用辅料有限公司
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