CAS 63148-60-7Silicone rubber,methyl RTV 107
CAS:63148-60-7 NAME:Silicone rubber,methyl RTV 107 PURITY:Customization APPEARANCE:Colorless liquid SPECIFICATION:custom viscosity
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Industrial Chemicals
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Product introduction
| CAS | 63148-60-7 |
| NAME | Silicone rubber,methyl RTV 107 |
| OTHER NAME | Hydroxy-terminated polydimethylsiloxane, HTPMS |
| APPEARANCE | Colorless liquid |
| SPECIFICATION | Different viscosity |
| PACKING | 200KG/ barrel |
| STORAGE | Store in a cool and dry place under sealed condition |
Description:
Hydroxy-terminated polydimethylsiloxane, HTPMS is a polymer that has the properties of polydimethylsiloxane (PDMS) and hydroxyl functional groups. HTPMS is commonly used in the manufacture of silicone rubber, coatings, adhesives and other materials because it has good adhesion, temperature resistance and chemical resistance.
Curing mechanism of hydroxy-terminated polydimethylsiloxane:
Curing refers to the process of transforming hydroxy-terminated polydimethicone from a liquid to a solid. The curing mechanism involves four kinds of chemical reactions: hydroxy-silicon reaction, condensation reaction between hydroxyl and hydroxyl, hydrolysis reaction of silico-oxygen bond and water removal reaction.
The hydroxy-silicyl reaction refers to the reaction of the hydroxyl group with the silicone group in polydimethicone to form a silicon-oxygen-carbon bond.
The condensation reaction between the hydroxyl group and the hydroxyl group is to break the oxygen atom between the hydroxyl group and the silica ring, and form a new hydroxy-silicon bond.
The hydrolytic reaction of the silico-oxygen bond refers to the reaction of the silico-oxygen bond with water to form hydroxyl and silanol.
The extraction reaction of water refers to the condensation reaction in which a water molecule needs to be separated to allow the reaction to proceed.
2. Use
It has a wide range of applications in the industrial field, including but not limited to the following aspects
2.1 Lubricants
They can effectively reduce the coefficient of friction, improve lubrication performance, and extend the service life of mechanical equipment. In industrial production, it is often added to lubricating oil to lubricate the operation of various mechanical equipment.
2.2 Sealant
Hydroxy-terminated dimethyl groups (siloxanes and polysiloxanes) are also widely used as components of sealants. With high viscosity and high temperature resistance, it can effectively fill and seal various gaps and holes, improving the performance and reliability of sealing materials.
2.3 Surfactants
In some cleaners and care products, they play an important role in reducing the surface tension of the liquid, improving the surface wettability, and increasing the cleaning effect.
Key words:
CAS 63148-60-7 Silicone rubber,methyl RTV 107
HTPMS
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