Silicone Fluid

Silicone fluids have unique properties because they are not products of petroleum or organic chemistry. They were the first, and are still the only, major class of polymers that are products of inorganic chemistry.

Zhongtian Silicone Fluid Product Series

Among the whole products series, the silicone fluid product series launched by Zhongtian as the silicone products manufacturer is also worth a look. As liquid silicone rubber manufacturers, we offer high-quality polydimethylsiloxane and the best silicone oil that can be directly used in the damp proof, insulation, damping, shock absorption, defoaming, lubrication, polishing, etc.

Silicone Fluid Properties

Generally speaking, silicone fluid is colorless (or light yellow), tasteless, non-toxic, non-volatile liquid. Silicone fluid has the following special properties:

· high and low-temperature resistance

· electrical insulation

· weather resistance

· physiological inertia and small surface tension

· no corrosion to metal

· good insulation

Due to these properties, silicone fluid enjoys excellent effect in many aspects. Among all kinds of silicone oil, methyl silicone oil is the most widely used and the most important one

Liquid silicone oilApplication

The application of silicone fluid is now extending to the following fields r industries:

· Nano components: microflow channel, micromixer, micro pump, microvalve, etc.

· Body filling: breast filling

· Aerospace: protective coating of surfaces

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Description of Silicone Fluid

Silicone fluid usually refers to a linear polysiloxane product that remains liquid at room temperature. It is generally divided into two categories: methyl silicone fluid and modified silicone fluid. The most commonly used silicone fluid - methyl silicone fluid, also known as ordinary silicone fluid, whose organic groups are all methyl, methyl silicone fluid has good chemical stability, insulation, and good hydrophobic properties. It is made by hydrolysis of dimethyl dichlorosilane with water to make the initial condensation ring body, the ring body by cracking, distillation to make a low ring body, and then the ring body, capping agent, catalyst put together to adjust the polymerization can get a variety of different polymerization degree of the mixture, by reducing the distillation to remove the low boiling material can be made of silicone fluid.

Advantages and Disadvantages of Silicone Fluid

Advantages

(1) The viscosity and temperature performance is the best among liquid lubricants, and the viscosity changes little in wide temperature range. Its freezing point is generally less than -50℃, some are as high as -70℃, and its oil appearance and viscosity do not change when stored for a long time at low temperature, it is a base oil that can take into account high temperature, low temperature and wide temperature range.

(2) Excellent thermal oxidation stability, such as thermal decomposition temperature >300℃, small evaporation loss (150℃, 30 days, evaporation loss is only 2%), oxidation test (200℃, 72h), small changes in viscosity and acid value.

(3) excellent electrical insulation, volume resistance, etc. does not change in the range of room temperature ~ 130 ℃ (but the oil can not contain water).

(4) It is a non-toxic and low foaming, strong anti-foaming oil, can be used as antifoaming agent, etc.

(5) Excellent shear stability, has the function of absorbing vibration and preventing vibration transmission, and can be used as vibration damping fluid.

Disadvantages

(1) The lubricity of silicone oil is not good, especially for the poor lubrication of the steel friction side.

(2) The coefficient of thermal expansion of silicone oil is large (may produce overpressure problem).

(3) Large gas solubility (difficult to design gas sealing device).

(4) A certain degree of hygroscopicity (after the water content is higher than 100×10-6, the electrical performance drops sharply).

(5) Small surface tension (easy to leak from the machine).

Packaging and Storage of Hydrogen Silicone Oil

Hydrogen silicone oil should avoid contact with alkaline substances, acid-proof, moisture-proof, stored in a cool and dry place, the storage period of more than one year. Over the period it can be retested if it is standard qualified, hydrogen silicone oil can still be used. Hydrogen silicone oil is the non-dangerous product.

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