Nitrile rubber has excellent oil resistance. Butyl rubber is a highly airtight rubber and is widely used in the rubber product industry. Nitrile rubber and butyl rubber products are blended with a certain proportion of EPDM compound, which can further improve the overall performance of rubber products. In actual production, polyethylene, oil-extended ethylene propylene rubber and other high molecular polymers mixed with a certain proportion of EPDM rubber can significantly improve the physical properties of the product.
4. EPDM compound improves the ozone resistance of nitrile rubber
Oil resistance is a sign of nitrile rubber. The rubber has good wear resistance, air tightness, and water resistance, but its ozone resistance is very poor. Mixing 20%-30% EPDM compound in nitrile rubber products can obviously improve the ozone resistance and weather resistance of nitrile rubber products. It should be noted that the addition of EPDM will reduce the oil resistance and tensile properties of nitrile rubber products. Therefore, the amount must be strictly controlled. When the rubber is vulcanized, the nitrile rubber is mainly used for matching and processing.
5. EPDM compound improves the aging resistance of butyl rubber
Appropriate use of EPDM compound in butyl innertubes can alleviate the problem of aging, degradation and stickiness of butyl innertubes, and then extend the service life of butyl innertubes. In actual production, EPDM rubber can be blended with butyl rubber 2LLYY83 in any proportion. The aging resistance, tear resistance and anti-vulcanization resistance of rubber products with butyl rubber as the main raw material will vary. The addition of EPDM compound is significantly improved.
6. EPDM compound improves the crack resistance of polyethylene
Polyethylene materials have excellent low temperature resistance, good chemical stability, but are very sensitive to environmental stress (chemical and mechanical effects), and have poor heat aging resistance; using a proper amount of EPDM compound in the polyethylene material can significantly improve the polyethylene material The heat resistance and crack resistance. Under normal circumstances, the blending ratio of EPDM in polyethylene materials can be increased to 40%, and the original physical and mechanical properties of the products remain unchanged.
7. EPDM compound improves the mechanical strength and processing performance of oil-extended ethylene propylene rubber
In actual production, EPDM rubber can also be mixed with oil-extended ethylene propylene rubber in any ratio. After adding EPDM, the tensile strength and elongation at break of oil-extended ethylene propylene rubber are significantly improved. The material is pressed out faster and the expansion and contraction is smaller.
The role of EPDM in other types of rubber is different, and the rubber product manufacturer can determine the amount of EPDM added according to actual needs. With the continuous progress of the production technology of EPDM reclaimed rubber, the index of reclaimed rubber is getting closer and closer to the original EPDM rubber. Therefore, rubber product manufacturers can also use EPDM reclaimed rubber for other rubber modifications to further optimize the overall performance of the product while reducing the cost of raw materials for rubber products.
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