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 250-30 Phenyl Methyl Silicone Fluid

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1. Synonyms:

  • Diphenyl Methyl Terminated Polydimethylsilicone

  • Dimethylpolysiloxane

  • Methyl Phenyl Silicone Fluid

  • Methyl Phenyl Silicone Oil

2. Structure:

Structure

3. Properties & Applications:

The thermal silicone fluids are described in chemical notation as aromatic siloxane because of the presence of phenyl group. High phenyl content fluids are utilized as heat-exchange fluids, dielectric coolant, impregnants for sintered metal bearing, and base oils for high temperature fluids. Low phenyl content fluids are utilized at over temperature than high phenylsilicones and find extended temperature service applications as lubricating oils for critical devices such as timers and system involving rubber,  plastic and aluminum mating surface.

Low viscosity, low freezing point, good heat resistivity, high flash point, low expansion coefficient, excellent electrical insulation property. Used as insulation impregnating agent for large scale power condenser and separation and anti-adherent for blood bag and transfusion bag, basic oil for surgical medicines, cosmetics and oil additives for skin-care, chilblain preventive agents

4. Specifications:

Appearance Colorless or light-yellow transparent liquid
Viscosity(25oC) 25~40 mm2/s
Refractive Index (25oC) 1.470~1.485
Flash point Min. 240oC
Specific gravity (25oC) 0.965~0.975 g/ml
Freezing point Max. -50oC
loss tangent(25C, 50Hz) Max. 0.001
break-down voltage
(KV/2.5mm,75C,50Hz)
30

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