When using EPDM rubber or EPDM reclaimed rubber to produce rubber products, the vulcanized rubber powder obtained by pulverizing waste rubber products can be used as a non-reinforcing filler and filled in the EPDM rubber to reduce the cost of raw materials. So what are the advantages of using vulcanized rubber powder as a filler in EPDM compounds? What kinds of vulcanized rubber powder can be filled in EPDM rubber products? What problems should be paid attention to when filling rubber powder?
1. The advantages of EPDM rubber filled with vulcanized rubber powder
Filling the EPDM rubber with vulcanized rubber powder can increase the product volume; compared with other non-reinforcing rubber fillers, the hardness and resilience of the EPDM rubber filled with a large amount of vulcanized rubber powder have little change. The development of the application range of vulcanized rubber powder in EPDM rubber can solve some of the environmental pollution problems of waste rubber.
2. It can be used as vulcanized rubber powder for EPDM rubber filler
Tire rubber powder, EPDM rubber powder and rubber powder processed from unsaturated diene rubber can all be used in the production of EPDM rubber products. Among them, the price of tire rubber powder is low, and the EPDM rubber powder is resistant to Good aging performance 2LLYY1030 and other characteristics. In actual production, EPDM rubber compound filled with tire rubber powder can improve the rubber process performance and reduce the cost of raw materials, especially in low-grade waterproof materials and sealing products. EPDM rubber powder is mostly used in the production of EPDM sealing strips and hoses.
3. Tips for filling EPDM rubber with vulcanized rubber powder
When filling vulcanized rubber powder in EPDM compound, 60-80 mesh products are often used, and different types of vulcanized rubber powder have different application skills.
In actual production, tire rubber powder is used as a filler in EPDM rubber products, and the amount of rubber powder is usually controlled at about 30 parts; proper use of rubber powder modifiers such as thermosetting phenolic resin to further improve the co-vulcanization of EPDM rubber and tire rubber powder Sex. The higher the amount of EPDM rubber powder in EPDM products, the higher the fineness of the rubber powder, the better the blending effect. When using diene rubber powder, it is especially necessary to pay attention to the migration of vulcanizing agent in the rubber powder.
EPDM rubber is a non-self-reinforcing rubber. Filled with vulcanized rubber powder can increase the volume, reduce the cost, and improve the process performance, but the reinforcing effect is small, so it is necessary to appropriately increase the reinforcing agent such as carbon black The dosage. In actual production, EPDM rubber and EPDM reclaimed rubber have strong filling capacity. When producing EPDM rubber products with low rubber content, the amount of vulcanized rubber powder can be increased according to actual needs, reducing more raw material costs, and the later period is small. Edit continue to discuss with you.
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