CHLOROPRENE RUBBER is
This product is a general purpose chloroprene rubber of low crystallization rate made by polymerizing the emulsion with sulphur and mokifier D(biisopropyl Xanthogenate) as mixed modifier and petroleum sodium sulfonate as disperser, and with pollutant and non-pollutant antiageing agents used separately.
CR322 CHLOROPRENE RUBBER
Type
CR2442 CR2443
Appearance: Creamy flaky or lumpy matter generally, free from mechanical impurities (except talc powder) and scorched particles.
Chemical Properties
This product is characterized by good physico-mechanical performances, sunlight resistance, weather resistance, ozoneageing resistance, chemical regent resistance, oil resistance, combustion retardancy, air impermeability, flexibility resistance, electric insulation, and more excellent tearing strength than CR121.It has good process performance, and is easy to plasticate, mix-melt and extrude to form.It also has smooth surface, good appearnce and satisfactory processing safety.
Specifications
|
Item |
Index |
||||
|
High Grade |
Grade A |
Qualified Grade |
|||
|
Mooney Viscosity |
|
CR3211, CR3221 |
25-40 |
25-40 |
25-40 |
|
ML |
100℃ |
CR3212, CR3222 |
|||
|
1+4 |
CR3213, CR3223 |
||||
|
Tensile Strength MPa Min |
26 |
22 |
20 |
||
|
500% Strenching Stress, MPa |
1-5 |
1-5 |
1-5 |
||
|
Tear Extensibility, % Min |
800 |
780 |
750 |
||
|
Scorching Time, MSts, min Min |
25 |
20 |
15 |
||
|
Volatiles Content, % Max |
1.5 |
1.5 |
1.5 |
||
|
Ash Content% Max |
1.3 |
1.3 |
1.5 |
||
Application
Due to its excellent comprehensive performances, this product is widely applied to making of various cables, chloroprene cloth wires, plain and oil resisting hoses, rubber boards, air ducts, conveyer belts, driving belts, tent cloth, waterproof cloth, oil resisting rubber boots, sealing parts, agricultural encapsutated air cushions, lifeboats, lifeboats, etc. CR322 is more suitable for various bright color or lightcolor.
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