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Novel functional group-containing fluorine-modified silicone oils and preparation method thereof

A functional group and fluorine modification technology, applied in the field of silicone polymer materials, can solve the problems of limited application range expansion, methyl hydrogen-containing silicone oil resistance to fuel oil, poor resistance to chemical media, etc., to achieve unique surface activity and chemical stability , good comprehensive effect and simple process route

Active Publication Date: 2014-10-08
JUHUA GROUP TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of product quality requirements in my country's production technology and practical applications, methyl hydrogen silicone oil has poor resistance to fuel oil and chemical media, which limits the further expansion of its application range.

Method used

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  • Novel functional group-containing fluorine-modified silicone oils and preparation method thereof
  • Novel functional group-containing fluorine-modified silicone oils and preparation method thereof
  • Novel functional group-containing fluorine-modified silicone oils and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 73.8g perfluorobutylethylene and 20ppm platinum catalyst into a four-necked flask equipped with a stirrer, reflux condenser, constant pressure dropping funnel and thermometer, and add 60g of hydrogen-containing silicone oil dropwise under nitrogen protection. Keep the temperature at 90°C for constant temperature reaction for 2 hours, then add 17.4g of allyl alcohol dropwise, after the dropwise addition, perform constant temperature reaction for 2 hours, and finally remove the remaining perfluorobutylethylene and allyl alcohol by distillation under reduced pressure to obtain 114.2 fluorine modified silicone oil containing hydroxyl g.

Embodiment 2

[0022] Add 69.2g perfluorohexylethylene and 20ppm platinum catalyst into a four-necked flask equipped with a stirrer, reflux condenser, constant pressure dropping funnel and thermometer, add 40g of hydrogen-containing silicone oil dropwise under nitrogen protection, and keep The temperature was 100°C for constant temperature reaction for 2 hours, and then 11.6 g of allyl alcohol was added dropwise. After the dropwise addition, it was reacted for 2 hours at constant temperature. Finally, the remaining perfluorohexylethylene and allyl alcohol were removed by vacuum distillation to obtain 92.3 g of hydroxyl-containing fluorine-modified silicone oil.

Embodiment 3

[0024] Add 89.2g of perfluorooctylethylene and 20ppm platinum catalyst in a four-necked flask equipped with a stirrer, reflux condenser, constant pressure dropping funnel and thermometer, and add 40g of hydrogen-containing silicone oil dropwise under nitrogen protection. Keep the temperature at 110°C for a constant temperature reaction for 2 hours, then add 28.4 g of glycidyl methacrylate dropwise, and react for 2 hours at a constant temperature after the dropwise addition, and finally remove the remaining perfluorooctylethylene and glycidyl methacrylate by distillation under reduced pressure to obtain 109.8g of ester group epoxy group fluorine modified silicone oil.

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Abstract

The invention discloses novel functional group-containing fluorine-modified silicone oils and a preparation method thereof, and belongs to the technical field of organosilicon high molecular material. Perfluorobutyl ethylene, perfluorohexyl ethylene, perfluorooctyl ethylene and perfluoroalkyl ethylenes as initial fluorine-containing materials are subjected to a hydrosilylation reaction with a methyl hydrogen-containing silicone oil under the action of a platinum catalyst, and fluorine-containing hydrogen-containing alkyl silicone oils are comprehensively prepared. The obtained fluorine-containing hydrogen-containing alkyl silicone oils further are subjected to a hydrosilylation reaction with allyl alcohol, hydroxyethyl acrylate and other functional group-containing monomers, and the fluorine-containing silicone oils with functional groups are prepared and have good mold release persistence, heat resistance and stability when used as mold release agents. According to principles, a series of fluorine-containing silicone oils with the functional groups can be synthesized by different fluorine-containing olefins; and the preparation process is simple and has wide application fields.

Description

technical field [0001] The invention relates to a functional group-containing fluorine-modified silicone oil prepared from perfluoroolefins and functional group-containing olefins as raw materials, and belongs to the technical field of organosilicon polymer materials. Background technique [0002] Methyl hydrogen-containing silicone oil is one of the most important products in the silicone oil series. Because the siloxane main chain contains active hydrogen groups in the silicone oil series, it has high activity and can react with many active groups. The field is very broad. Its notable feature is its good waterproof effect, and it can be cross-linked at low temperature to form a film, forming a waterproof layer on the surface of the material. However, with the continuous improvement of product quality requirements in my country's production technology and practical applications, methyl hydrogen silicone oil has poor resistance to fuel oil and chemical media, which limits t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/385
Inventor 刘国清李建
Owner JUHUA GROUP TECH CENT
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