XJY-707

Hydride terminated Polydimethylsiloxane

 

 

 

 

 

Other name

HPDMS

CAS Number

70900-21-9

Appearance

Colorless transparent liquid

Specification

Hydride Terminated Polydimethylsiloxane is soluble in various organic solvents such as aromatic hydrocarbons/petroleum hydrocarbons. It is insoluble in water and is a widely used silicone intermediate.

Hydride Terminated Polydimethylsiloxane (CAS: 70900-21-9) has been registered (Full substance) under REACH (EC) 1907/2006.

 

Brand Name

XJY-707-30

XJY-707-10

XJY-707-015

XJY-707-030

XJY-707-050

XJY-707-075

Appearance

Colorless clear liquid

Content of Hydrogen (%)

0.27-0.30%

0.09-0.11%

0.015-0.017%

0.030-0.034%

0.048-0.052%

0.073-0.078%

Viscosity (25℃mm2/s)

4-7

24-40

250-350

100-150

50-80

30-50

Volatile matter (105℃/3h)

10%

1.5%

10%

5%

≤3% or 1%

6%

Hydride Terminated Polydimethylsiloxane can be customized according to customers request.

 

 

Application

 

1. Hydride Terminated Polydimethylsiloxane is usually used as a silicone end-capping agent.

2. Due to Hydride Terminated Polydimethylsiloxane containing reactive Si-H groups in the molecular structure, it can be used in the synthesis of copolymer macromolecules by hydrosilylation. The synthesis of copolymer macromolecules can be made into a series of reactive silicone oil.

3. Hydride Terminated Polydimethylsiloxane is usually used to produce textile softener, block silicone oil, surface-active agents.

4. As a chain extender for adding liquid silicone rubber, adding a crosslinking agent for forming a hot vulcanized silicone rubber;

5. As a waterproofing agent and softener for natural and synthetic fabrics;

6. As the special silicone surfactant;

7. Hydride Terminated Polydimethylsiloxane can be used in the manufacture of a variety of end group reactive linear modified silicone oil.

8. As the key intermediates of block copolymerization reaction.

9. As a modification of the reaction, such as plastic resin.

 

Hydride Terminated Polydimethylsiloxane for silicone rubber

Hydride Terminated Polydimethylsiloxane also referred to as di-Me crosslinker, this silicone fluid is the key raw material ingredient to initiate the curing process of a two-component silicones elastomer/rubber formulation. These formulated specialty elastomers include silicone foam, liquid silicone rubber (LSR), heat-cured rubber (HCR), and room-temperature cure (RTV) silicone rubbers.

 

These silicone elastomers are then used in a diverse range of high tech specialty markets such as Healthcare, Automotive, Aerospace, Solar, Textiles. In the healthcare market, silicone elastomers are used as valves in medical devices and equipment and in long-term implant applications like pacemakers and heart valves. In the automotive market, the formulated silicone elastomers are used to dissipate heat in high-temperature environments such as in electric vehicles. In the energy market, the formulated silicones dissipate heat in energy storage units to support an uninterrupted power supply.

 

Due to the Si-H functionality, these products are able to react in a catalyzed hydrosilation reaction with compounds bearing carbon-carbon double bonds in 1-position, e. g. vinyl siloxanes, alpha-olefins, or other unsaturated compounds.

 

Common hydrosilation reaction catalysts are group VIII metal compounds, especially platinum compounds. In compounding addition curing silicone elastomers chain extenders reduce the crosslink density and thus the hardness of the resulting elastomer. The use of chain extenders allows compounding elastomers with relatively low shore hardness using low viscosity and easy to process vinyl silicone polymers in the formulation.

 

Packaging

 

XJY-707 Hydride Terminated Polydimethylsiloxane packaging provides 190kg in 210L drums IBC drum.

We control the molecular weight of this product so that it can be sold and transported as a common chemical, not a hazardous chemical.

 

Storage


Stored in the original unopened containers. Keep away from light, rain, and ventilation below 30℃ in a dry and cool place.

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