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Methyl Phenyl Silicone Fluid-final

Methyl Phenyl Silicone Fluid-final

Methyl Phenyl Silicone Fluid Introduction: Methyl phenyl silicone fluid is a colorless or yellowish transparent oil.It has good radiation resistance and high oxidation stability, heat resistance, combustibility, UV resistance and chemical resistance. It can be prepared from eight methyl ring...

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Methyl Phenyl Silicone Fluid


Methyl phenyl silicone fluid is a colorless or yellowish transparent oil.It has good radiation resistance and high oxidation stability, heat resistance, combustibility, UV resistance and chemical resistance. It can be prepared from eight methyl ring four siloxane, two methyl four phenyl two siloxane, and methyl phenyl two ethoxy silane hydrolysate in the presence of catalyst. Methyl phenyl silicone fluid is used as lubricating oil, heat exchange liquid, insulating oil, gas liquid chromatography carrier and so on. It also used for insulation, lubrication, damping, shock proof, dust proof and high temperature heat carrier. It is the ideal liquid damping dielectric liquid of the electronic instrument.

Structural formula:


Physicochemical property:

Appearance: Colorless or light yellow transparent liquid, without mechanical impurities

Refractive index: 1.470~1.485

Kinematic viscosity: (CS): 25~2000

Flash point(℃): ≥250

dielectric loss angular tangent value:(25℃, 50HZ): ≤1×10-3

dielectric constant: (25℃, 50HZ): 2.6~3.0

breakdown strength:(KV/2.5mm, 25℃, 50HZ): >45


Methyl phenyl silicone oil has higher viscosity temperature coefficient, lower freezing point and flash point than that of two methyl silicone oil with same viscosity, and the compression resistance changes faster under pressure. The low temperature resistance of low phenyl silicone oil is significant, and it is also fluidity at - 70. With the increase of the mole fraction of phenyl, the resistance of silicone oil to high temperature, radiation resistance, lubricity and solubility in organic solvents increased, but the low temperature resistance decreased. When the phenyl silicone oil with high mole fraction is heated above 250 C, it will increase oxidation and viscosity. Especially for 50% silicone oil with phenyl mol fraction, stabilizer can be used for hundreds of hours at 300~350 C.


1、Methyl phenyl silicone oil is used in the application of methyl silicone oil, which can give play to its low temperature, high temperature resistance, lubricity and phase solubility. Low phenyl silicone oil is especially suitable for the requirements of highly cold occasions; phenyl phenyl silicone oil and high thermal stability, and good radiation resistance, can be used as heat treatment bath, metal products, heating oil, gas chromatography carrier, electronics, electrical equipment and level of lubricating oil, adding carbon black, lithium grease soap or made of molybdenum disulfide can be used for lubrication of high temperature fan bearings, ball bearings, automotive engines, such as textile dryer;

2、Methyl phenyl silicone oil is also widely used in hydraulic, instrument, electrical insulation and so on. Phenyl vinyl silicone oil and phenyl hydrogen containing silicone oil can be used in the preparation of high temperature resistant and irradiated silicone rubber. Hydroxyl terminated phenyl silicone oil as a fabric finishing agent can significantly improve the smoothness and compliance of the fabric, and give the fabric a good hydrophobic and oil repellency. Using the good phase solubility of phenyl silicone as the internal additive of plastic, it can improve its processing performance.

3、Methyl phenyl silicone oil is better than methyl silicone oil in the solubility of cosmetics. It is stable for heat and ultraviolet, and has unique luster. It is often used as an additive for skin care products, hair conditioner and other personal care products. Silicone oil containing methylphenyl siloxane chain can prepare colorless and transparent products with high phenyl content and moderate viscosity. It can be used as LED packaging material because of its high transmittance, high refractive index, good thermal stability and radiation resistance.


Suitable for the use as insulation impregnation oil for large scale power capacitor

Used as parting agent and anti-sticking additives for plasma bags and infusion bags

Used as base oil for surgical treatment

Used as additives for cosmetics ,skin-care and frostbite prevention agent,etc.


Methyl phenyl silicone oil should be stored in clean, sealed plastic drums. It should be stored in a ventilated and cool place.

Methyl phenyl silicone oil should be stored in a place with the temperature of 0-40°C, freezing should be avoided.

IT should be stored avoid from acid, alkali chemical materials and other impurities.

Shelf life: 3 years


Phenyl Methyl Silicone Oil  is available in 25kg plastic drums or 200kg Iron drums.

Traffic limitation:

Transport as non-dangerous goods.

Security information:

The containers for methyl phenyl silicone oil can be cleaned with solvent gasoline, xylene, toluene, ethyl acetate, etc.

If it is found that the methyl phenyl silicone oil is cloudy and has no mechanical impurity, it may have been contaminated by other oil products. It is necessary to consider the possible problems of pollution when using it.

If the methyl phenyl silicone oil is mixed mechanical impurities into the naked eye, can be filtered out of the impurities. It can be filtered by ordinary qualitative filter paper. It should be clear and transparent.

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