| Vulcanizing Agent PDM |
| Chemical
Name: N,N'-m-phenyl dimaleimide |
| Structural
Formula: |
 |
| Property:
|
| yellow
or brown powder, specific gravity: 1.44, soluble in
tetrahydrofuran and heat propanone, insoluble in petroleum
ether, chloroform, benzene and water, melting point:
higher than 195°C. |
| Quality
Index: |
|
Appearance |
yellow
or brown powder |
|
Dry
Loss, %≤ |
0.5(70°C
2h) |
|
Ash,
%≤ |
0.5 |
|
Melting
Point, ≥ |
195°C |
|
| Uses: |
| Being
a kind of multifunctional rubber vulcanizing agent,
PDM is used as vulcanizing agent and cocuring agent
for peroxide system in rubber process. It is also
used as antiscorching agent and anchoring agent. It
is not only applicable to all-purpose rubber, but
also combination system of specialty rubber and rubber
plastic
In natural rubber, when used together with sulfur,
it can prevent sulfuration from reversing, perfecting
heat and oxidantion resistance, reducing pyrogenesis,
improving the adhesion between rubber and tire cord
and the modulus of vulcanized rubber. When used in
shoulder rubber and cushion breaker for lorry tire,
it solve the difficult question of shoulder hollow
for oblique lorry tire. It is also used in thick products
of natural rubber and other rubber sundry goods.
When used as cocuring agent in neoprene rubber, chlorosulfonated
polyethylene rubber, styrene-butadiene rubber, acrylonitrile-butadiene
rubber, isoprene rubber, butyl rubber, bromobutyl
rubber, acrylic rubber, silicon rubber and other rubbers,
PDM can effectively improve correlation performance
and heat resistance. It is applicable to high-temperature
vulcanization system showing effective effect on reducing
permanent compression deformation and the use amount
of peroxide, preventing gross rubber from scorching
during process, improving the adhesion strength between
gross rubber and tire cord or metal.
PDM is a kind of sulfurless vulcanizing agent. When
used in cable rubber, it can substitute for sulfurized
vulcanizing agent such as thiazole type, thiuram and
other, which solve the blackening of copper wire and
copper electronic appliance because they contact with
sulfurized vulcanizing agent to produce copper sulfide. |
| Usage: |
| 0.5-1.0
portion when used as antiscorching agent, 2-3 portion
when used as vulcanizing agent, 1.5 portion when used
as compression deformation improving agent, 0.5-5.0
portion when used as adhesion strength improving agent. |
| Package:
composite bag, net weight: 25kg. |
|
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Huaqi Rubber and Plastic Co.,Ltd. All Rights Reserved.
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