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Methyl-Vinyl Silicone Rubber (VMQ)
Character:
Methyl-Vinyl Silicone Rubber(VMQ) a is colorless, odorless, nontoxic and non-mechanical impurities jelly-like.
It can be processed as many articles by general methods adding some reinforcing agent, structural controlling agent and curing agent and these articles has some excellent properties such as electric insulating, resistance to arc, corona, electric spark, impact and shock, waterproof, humidity proof, inert and air permeability.
Specification:
|
Common Silicone Rubber for Molding |
Common Silicone Rubber for Extrusion |
M30 |
M40 |
M50 |
M60 |
M70 |
M80 |
E50 |
E60 |
E70 |
E80 |
Appearance |
Milky-white, slightly yellow, no obvious extraneous matter |
Hardness Shore A Points |
30¡À3 |
40¡À3 |
50¡À3 |
60¡À3 |
70¡À3 |
80¡À3 |
50¡À3 |
60¡À3 |
70¡À3 |
80¡À3 |
Tensile Strength (MPa, Min) |
5.0 |
6.5 |
7.5 |
7.5 |
7.0
|
7.0 |
7.5 |
7.5 |
7.0 |
6.5 |
Elongation at Breakage (%, Min) |
450 |
400 |
320 |
280 |
200 |
150 |
450 |
360 |
250 |
150 |
Tension Set (%, Max) |
7 |
7 |
8 |
8 |
7 |
6 |
14 |
14 |
14 |
10 |
Tear Strength (kN/m, Min) |
15 |
16 |
18 |
18 |
17 |
16 |
18 |
20 |
20 |
18 |
Volume Resistivity (¦¸.cm) |
|
1.0¡Á1014 |
Dielectric Strength (kv/mm) |
|
18 |
|
|
|
|
|
|
|
|
|
|
|
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Physical and Mechanical Properties are based on first vulcanization data, Electrical Properties are drawn from second vulcanization data.
First vulcanization Condition for test piece: 175¡Á5min, Second vulcanization condition for test piece: 200¡Á2h.
Vulcanizator: 80% DMDBH,quantity added 0.65%
Application:
VMQ can be widely used in space, instrument, electric, metallurgy, mechanic, automobile, medicine industry,
VMQ can be processed as many formed gasket, tube, cable.
VMQ can be used as release agent of organ, blood, transparent film, rubber mold and finishing process.