NPCC-501 NATURAL AND SYNTHETIC RUBBER

Descripción del producto

Nano calcium carbonate (Nano-precipitated calcium carbonate), as a function of nano-reinforced material, has been successfully applied in chloroprene rubber (CR), chlorinated polyethylene (CM), chloroprene compound (alloy rubber), ethylene propylene diene monomer (EPDM) , EVA rubber.

Chloroprene rubber due to its excellent flame resistance, oil resistance, high flexibility and softness, etc., are widely used in coal mine cables, shipboard cables outer sheath material, but its poor compatibility with the filler, product appearance rough, and friction Hot Big Easy early curing, such as adding NPCC *5phr, can significantly improve the appearance of smoothness, soft features, while scorch time may be extended more than *0%, anti-tear properties were also improved significantly (with *0phr silica can reach 9N / mm and above), especially for use in harsh environments of outer cable jacket material formulations.

EPDM rubber in the cable industry, mainly as a reinforcing material insulating material, with the cable life and heat resistance rating requirements increase, more widely used. EPDM rubber as poor self-adhesive, mixing and extrusion process is poor, while with low gel strength, feeding problems, low productivity, and lower strength vulcanized rubber, to bring product development and processing difficult. NPCC completely make up for EPDM rubber in the above deficiencies. Test shows that NPCC in highly filled EPDM rubber (Chemtura's **1T) up to **0phr fill more than a gel content of *5% or less, can still meet the performance requirements of cable insulation, while ensuring more good mixing and extrusion process performance, while securing the electrical performance requirements. If you used NPCC in Cable General EPDM grades (J***5, TER***4, R***5, EP*1) , we can fill with talc increases the proportion of 1:1 containing glue *8% more than its tensile strength in 8Mpa elongation in **0% more than two indicators can achieve more than twice that of ordinary reinforced materials.

Developed rapidly in recent years, chlorinated polyethylene rubber, the nano calcium carbonate (nano-precipitated calcium carbonate) also played a role in their functional materials. Silica as the major chlorinated polyethylene rubber reinforcement materials, adding reached *0phr in When the Mooney viscosity of above **0, although mechanical properties were greatly improved, but mixed difficulties extrusion extrusion current is too large, and easily advance sulfide.The silica and calcium carbonate all join *0phr, the mechanical properties changed little, while the Mooney viscosity decreased more than *5, while curing product appearance is fine, good elasticity.

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