Preparation method for phenyl hydrogen-containing silicone oil

A technology of phenyl hydrogen-containing silicone oil and phenyl alkoxysilane, applied in chemical instruments and methods, petroleum industry, pharmaceutical formulations, etc. Problems such as poor repeatability, to achieve the effect of easy control, simple operation and mild conditions
CN102408565AActive Publication Date: 2012-04-11NICHE TECH KAISER SHANTOU
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NICHE TECH KAISER SHANTOU
Publication Date
2012-04-11

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Abstract

The invention discloses a preparation method for phenyl hydrogen-containing silicone oil, which comprises the steps as follows: firstly, phenyl alkoxyl silane and cyclosiloxane are used as basic reaction monomers; moreover, organic solvent, water and blocking agent are added to implement hydrolysis condensation reaction under the effect of acidic catalyst; secondarily, after the hydrolysis condensation reaction is completed, the reaction liquid obtained is washed to neutral and then low-boiling substances in the reaction liquid are removed, thus obtaining the phenyl hydrogen-containing silicone oil. The preparation method for phenyl hydrogen-containing silicone oil has the advantages of easily obtained material, simple operation, easy control, no pollution, gentle condition and convenientindustrialization. The number-average molar mass of the phenyl hydrogen-containing silicone oil prepared is between 0.5*103 and 5.0*103, the refractive index is adjustable between 1.41 and 1.60 and the hydrogen content is adjustable between 0.2 and 1.2wt percent. The phenyl hydrogen-containing silicone oil has excellent performances of high refractive index, high light transmittance, radiation resistance, high and low temperature resistance, weather resistance, etc. The phenyl hydrogen-containing silicone oil is suitable to be used as cosmetic additives, lubricant additives, cross-linking agent of electronic pouring sealant and cross-linking agent used for seal rings.
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Description

technical field

[0001] The invention relates to a method for preparing hydrogen-containing silicone oil, in particular to a method for preparing phenyl hydrogen-containing silicone oil. Background technique

[0002] Phenyl silicone oil is one of the main varieties of silicone oil. It has excellent electrical insulation properties, excellent anti-ozone, corona resistance, hydrophobic and moisture-proof properties, and good chemical stability. Due to the introduction of phenyl groups into the molecular chain of phenyl silicone oil, it has better high temperature resistance, radiation resistance, lubricity and compatibility. In addition, phenyl silicone oil shows certain absorption to ultraviolet light, and the working temperature is -50℃~250℃. Therefore, phenyl silicone oil is widely used in daily chemical products, electronics, machinery and other fields.

[0003] Among phenyl silicone oils, phenyl hydrogen-containing silicone oil is a linear polysiloxane in which some meth...

Claims

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