DESCRIPTION
Non-toxic, tasteless liquid, More activity than 203 because it have lively Si-H in the middle radical of Molecular structure , even it is very important reactivity intermediate , also the water repellency，moisture-proof are as same as 202,203.
STRUCTURAL FORMULA
CH3 CH3 CH3
H—Si—O—Si—O——Si—H
CH3 CH3 CH3
Technical indicators
|
viscosity（25℃，mpa.s） |
Mol. wt |
H% |
density |
Refractive index |
|
2-3 |
500-600 |
0.5 |
0.90 |
1.395 |
|
100 |
6000 |
0.04 |
0.97 |
1.403 |
|
500 |
17200 |
0.01 |
0.97 |
1.403 |
|
1000 |
28000 |
0.007 |
0.97 |
1.403 |
|
10000 |
62700 |
0.003 |
0.97 |
1.403 |
Volatile contents ≤10%
purpose
1. hydrosilylation of basic raw materials it was used all kinds of end-reactive linear modified silicone.
2. it’s the key intermediate of the block copolymerization .
3. can be used as plus liquid silicone rubber’s chain extender, plus hot forming curing agent ‘s crosslinker, improve product’s elongation at break, increase in toughness, reduced the hardness.
4. the beginning of raw material of the organic polymer modified materials, commonly used in resin’s modified reaction.
5. moisture-proof
Packaging, storage and precautions
Packed with 200KG and 50KG polyethylene plastic drum,
Stored in a dry place. avoid touch with acid and alkali. store more than one year. According to the standard review if extended. if pass can still be used. this product is a non-dangerous goods.
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