A kind of silicone wax emulsion and preparation method thereof

A silicone wax and emulsion technology, which is applied in pharmaceutical formulations, cosmetic preparations, cosmetic preparations, etc., can solve the problems of the gap between the research and application level of silicone wax, backward production technology, and backward process conditions, and achieve high moisturizing effect. The effect of skin affinity, stable product status and good stability

Active Publication Date: 2020-10-02
GUANGZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production technology of organic silicon in my country is relatively backward, and the problems of high cost and low output have been difficult to overcome
However, due to the relatively late start of my country's chemical companies, there is still a significant gap between the research and application level of silicone wax and foreign countries. For example, the production scale of domestic silicone wax products is small, the yield is low, and the process conditions are relatively backward.

Method used

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  • A kind of silicone wax emulsion and preparation method thereof
  • A kind of silicone wax emulsion and preparation method thereof
  • A kind of silicone wax emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Mix D4H and hydrogen-terminated silicone oil (molecular weight: 2000, purchased from Tianjin Zhiyuan Chemical Reagent Co., Ltd.) at a molar ratio of 5:1, react at 85°C for 5h under the action of catalyst sulfonated cationic resin, and distill under reduced pressure at 135°C , and filtered to obtain a hydrogen-terminated silicone oil containing active hydrogen in the side chain.

Embodiment 2

[0063] The hydrogen-terminated silicone oil containing active hydrogen in the side chain prepared in Example 1 was mixed with 1-octadecene at a molar ratio of 1:3, under the action of catalyst chloroplatinic acid, hydrosilylation reaction, and then vacuum distillation, Obtained octadecyl silicone wax.

[0064] When the hydrosilylation reaction time is 5h, the concentration of the catalyst chloroplatinic acid in the reaction system is 13mg / kg, and the vacuum distillation temperature is 150°C, the relationship between the hydrosilylation reaction temperature and the conversion rate is as follows figure 1 As shown in a, from figure 1 a It can be seen that the reaction conversion reaches the highest at 110 °C.

[0065] When the hydrosilylation reaction temperature is 130°C, the concentration of the catalyst chloroplatinic acid in the reaction system is 13 mg / kg, and the vacuum distillation temperature is 150°C, the relationship between the hydrosilylation reaction time and the co...

Embodiment 3

[0069] The hydrogen-terminated silicone oil containing active hydrogen in the side chain prepared in Example 1 is mixed with 1-octadecene according to a molar ratio of 1:3, and the catalyst chloroplatinic acid (the concentration of chloroplatinic acid in the reaction system is 12mg / kg ) under the action of hydrosilylation reaction at 110°C for 9h, and then vacuum distillation at 140°C to obtain octadecyl silicone wax.

[0070] figure 2 Infrared spectra of hydrogen-terminated silicone oil and octadecyl silicone wax containing active hydrogen in the side chain. Depend on figure 2 It can be seen that the hydrogen-terminated silicone oil containing active hydrogen in the side chain is at 2178 and 889cm -1 There are two strong absorption peaks at , which are the stretching vibration peak and deformation vibration peak of the silicon-hydrogen bond. After the reaction, the disappearance of these two absorption peaks in the octadecyl silicone wax indicates that the silicon-hydroge...

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Abstract

The invention belongs to the field of organic chemical synthesis, and specifically relates to a silicone wax emulsion and a preparation method thereof. The silicone wax emulsion includes octadecyl silicone wax, and the octadecyl silicone wax is prepared by the following method: First, mix D4H and hydrogen-terminated silicone oil, react under the action of catalyst sulfonated cationic resin, distill under reduced pressure, and filter to obtain hydrogen-terminated silicone oil with active hydrogen in the side chain, and then mix the hydrogen-terminated silicone oil with active hydrogen in the side chain with 1 ‑Octadecene is mixed, under the action of catalyst chloroplatinic acid, hydrosilylation reaction at 90-130 ° C for 6-10 hours, after the reaction is completed, vacuum distillation is obtained to obtain octadecyl silicone wax. The present invention also provides an organosilicon wax emulsion containing octadecyl organosilicon wax, and the emulsion has excellent properties such as suitable viscosity, strong moisturizing power, and strong stability.

Description

technical field [0001] The invention belongs to the field of organic chemical synthesis, and in particular relates to an organic silicon wax emulsion and a preparation method thereof. Background technique [0002] Silicon (Si) is one of the basic elements on the earth and widely exists in nature in the form of compounds. Among them, silicone is mainly used in sealing, surface activity, waterproof, anti-foaming, moisture-proof, inert filling and so on. After years of research and development, the number and varieties of silicones have been increasing, and the application fields have been continuously expanded, forming an important product system in the field of new chemical materials. The excellent performance of many varieties cannot be replaced by other chemicals. [0003] The improvement of people's living standards and the advancement of science and technology have increased the demand for organic silicon materials, and the production and sales of organic silicon at home...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/38C08G77/12C08G77/08C08G77/06C08J3/03C08L83/04A61K8/06A61K8/891A61Q19/00
CPCA61K8/06A61K8/891A61Q19/00C08G77/06C08G77/08C08G77/12C08G77/38C08J3/03C08J2383/04
Inventor 郑成宋旻子陌梅萧毛桃嫣林璟
Owner GUANGZHOU UNIVERSITY
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