EPDM reclaimed rubber has excellent high and low temperature resistance, aging resistance, and electrical insulation properties. It can be used to produce various high-insulation rubber products and reduce raw material costs. When using EPDM reclaimed rubber to produce electrical insulation rubber products, rubber product manufacturers need to select the appropriate EPDM reclaimed rubber according to actual needs, reasonably determine the amount of reclaimed rubber, appropriately adjust the rubber product formula, and further optimize while reducing the cost of EPDM insulation products. Finished product quality.
1. Selection skills of reclaimed rubber in electrical insulation products
When using EPDM reclaimed rubber to produce electrical insulating rubber products, the electrical insulation properties of different indicators of reclaimed rubber have little difference. Rubber products manufacturers can start with the processing performance and physical performance indicators of reclaimed rubber 2LLYY910. When EPDM reclaimed rubber is used to produce extruded electrical insulation products such as cable sheaths and insulating strips, it is necessary to choose high-fineness EPDM reclaimed rubber to ensure smooth extrusion; to produce high-strength electrical insulation products, select ethylene-propylene content High reclaimed rubber, or used together with EPDM with high ethylene content.
2. Formula design of EPDM reclaimed rubber insulation products
Reasonable design of the matching system of EPDM reclaimed rubber insulation products can further improve the insulation of electrical insulation products. In actual production, the rubber compound after peroxide vulcanization has better electrical insulation performance. The use of white carbon black, talc powder, calcium carbonate, calcined clay, aluminum hydroxide and other inorganic fillers in the reinforcing filling system can improve the electrical insulation properties of rubber products, especially talc and calcined clay. The softening system uses saturated hydrocarbon softeners such as paraffin oil, which is more beneficial to the insulation performance of EPDM reclaimed rubber. It can be used in conjunction with polyethylene wax, petrolatum, petroleum resin, liquid ethylene propylene rubber, etc.
3. Production method of EPDM reclaimed rubber insulation products
When using EPDM reclaimed rubber to produce electrical insulating rubber products, rubber product manufacturers can choose to use EPDM reclaimed rubber alone or together with EPDM virgin rubber according to the specific needs of insulating products; add appropriate amount to EPDM reclaimed rubber The EPDM raw rubber can produce electrical insulation products with higher physical and mechanical strength. It should be noted that the processing performance of EPDM reclaimed rubber is different from that of virgin rubber. Manufacturers of electrical insulation products need to fully masticate the EPDM virgin rubber before mixing with the reclaimed rubber.
In actual production, the vulcanization system, reinforcing filling system and softening system of EPDM reclaimed rubber insulation products will affect the electrical insulation and physical mechanical strength of reclaimed rubber products. Rubber products manufacturers must choose carefully, and the editor will continue Share with you.
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