A kind of organosilicon surfactant and its preparation method and application

A surfactant and organosilicon technology, applied in silicon organic compounds, chemical instruments and methods, transportation and packaging, etc., to achieve excellent emulsifying ability, excellent emulsifying ability, and good emulsifying effect

Active Publication Date: 2015-10-28
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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  • A kind of organosilicon surfactant and its preparation method and application
  • A kind of organosilicon surfactant and its preparation method and application
  • A kind of organosilicon surfactant and its preparation method and application

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 was raised to 80°C, 0.03g of catalyst was added, and the reaction was continued to 120°C to 130°C until the system became transparent, and a light yellow transparent silicone surfactant was 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 is raised to 90°C, 0.03g of catalyst is added, and the reaction is continued to 130°C to 140°C until the system becomes transparent, and a light yellow transparent silicone surfactant is obtained.

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PUM

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Abstract

Disclosed are a silicone surfactant, and a preparation method and the use thereof. The silicone surfactant has a structure as shown in formula (I), wherein c is not 0; a, b, c are all integers and 10< a + b + c < 200; m = 0-40; n = 0-30; x = 3-30; x,m,and n are all integers, and m and n are not both 0; R is a C6 - 20 linear or branched long-chain alkyl, or an alkyl phenyl; and R' is H, CH3, C2H5, C3H7, or C4H9. The silicone surfactant has a novel structure, and an excellent emulsifying ability. The silicone surfactant has a good emulsifying ability for polydimethyl siloxanes and a variety of modified polydimethyl siloxanes in a very wide viscosity range. A good emulsifying effect can be achieved using the surfactant alone without formulating with other emulsifiers, and the emulsifying process thereof is simple and convenient to use without needing any homogenizer or any other special emulsifying process, in order to obtain a stable O / W type silicone oil emulsion.

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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Patent Type & Authority Patents(China)
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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