Molded rubber products made from EPDM three have excellent resistance to high and low temperature and aging resistance. They are widely used in various fields. In the actual production, the price of EPDM is high, so the product manufacturers need to take some measures to reduce the cost of raw materials and consume the cost pressure brought by the high price of EPDM. So which direction should we start from and how to reduce the cost of raw materials on the premise of ensuring the quality of EPDM molded products?
1 filled with rubber filler
When the mechanical properties of EPDM fillers were lower than those of EPDM fillers, the mechanical properties of EPDM fillers decreased little. Therefore, many manufacturers of molded EPDM rubber products usually choose to increase the amount of rubber filler 2lly1228 to offset the high price of ethylene propylene rubber. In the actual production, the low price fillers commonly used by EPDM products manufacturers are light calcium, talc powder and clay. When a large number of powder fillers are used, the fillers must be fully and evenly dispersed in EPDM compound.
2. Use oil filled ethylene propylene
When EPDM was mixed with low molecular oil, the gloss of the compound was good, the viscosity increased, the Mooney viscosity decreased and the processability was better. In the actual production, the average molecular weight of EPDM oil extended rubber is reduced, and the oil content of 30-50 phr oil extended rubber is easier to roll when mixing. When EPDM is used to produce some molded rubber products, especially EPDM products with high adhesion performance requirements, the use of oil extended EPDM can not only reduce the cost of raw materials, but also improve the viscosity and processability of the compound.
When EPDM is used for oil filling, wet oil filling or dry oil filling can be selected, and the oil filling range of the two methods is different.
3. Mix with renewable resources
EPDM moulded products are made of EPDM unvulcanized rubber or waste EPDM rubber products. When EPDM reclaimed rubber and EPDM powder are mixed in a certain proportion, the amount of raw rubber can be reduced, the rubber processing technology can be improved, the raw material cost can be reduced and the power consumption can be saved. In actual production, EPDM reclaimed rubber can directly replace EPDM in whole or in part as main material; EPDM powder can be used as filler in EPDM model products.
The use of renewable resources can effectively reduce the raw material cost and production energy consumption of EPDM model products.
When reducing the production cost of EPDM model products, rubber manufacturers can consider from two aspects: raw material cost and production energy consumption. When using low-cost raw materials to reduce the cost of EPDM molded products, it must be carried out on the premise of meeting the requirements of various indicators of the products, and reasonably control the amount of rubber filler, reclaimed rubber or reclaimed rubber powder. Xiaobian will continue to discuss relevant issues with you later.
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