EPDM reclaimed rubber and nitrile reclaimed rubber are both special reclaimed rubbers widely used in rubber products. EPDM reclaimed rubber is mainly processed from EPDM die head rubber, unvulcanized EPDM rubber, or EPDM sealing strips, while nitrile reclaimed rubber is made from nitrile die head rubber, sub-brand nitrile rubber, or used nitrile rubber products. The fundamental difference among the two lies in polarity, with very different application ranges.
1. What are the performance differences among EPDM reclaimed rubber and nitrile reclaimed rubber?
(1) Performance characteristics of EPDM reclaimed rubber
EPDM reclaimed rubber is a non-polar rubber that retains the basic properties of EPDM base rubber, offering excellent resistance to high and low temperatures, ozone, aging, and chemical corrosion; High-quality EPDM reclaimed rubber also features high fineness, no impurities, is environmentally friendly and odorless, and does not migrate. It can fully or partially replace EPDM rubber or be used together with butyl rubber. The process is simple, the product surface is smooth and bright, and it saves both labor and electricity.
(2) Performance characteristics of nitrile reclaimed rubber
Nitrile reclaimed rubber is a typical polar rubber with excellent oil resistance, good wear resistance, and heat resistance; Nitrile reclaimed rubber with high rubber content also features good tactility and elasticity, high plasticity, and no impurities. Fully or partially replacing nitrile base rubber to produce oil-resistant rubber products, wear-resistant parts, and other nitrile rubber products can significantly reduce raw material costs. The acrylonitrile content of nitrile reclaimed rubber determines its oil resistance rating, with acrylonitrile content among 36%-42% offering the best cost performance.
2. Which is better, EPDM reclaimed rubber or nitrile reclaimed rubber?
EPDM reclaimed rubber and nitrile reclaimed rubber themselves are not inherently superior or inferior; they are highly complementary rather than mutually replaceable. In terms of oil resistance, nitrile reclaimed rubber holds an absolute advantage, while EPDM reclaimed rubber E5LYY1213 completely lacks oil resistance; In terms of weather resistance and ozone resistance, EPDM reclaimed rubber has an overwhelming advantage, while nitrile reclaimed rubber is a clear performance weakness; In terms of temperature resistance, EPDM reclaimed rubber has a higher upper temperature limit and better low-temperature elasticity, while nitrile reclaimed rubber has a relatively narrow temperature resistance range. The real factor determining whether EPDM reclaimed rubber or nitrile reclaimed rubber is better is the actual working conditions of the rubber products.
3. What are the differences in use among ethylene propylene diene reclaimed rubber and nitrile reclaimed rubber?
(1) Main uses of EPDM reclaimed rubber
The application of EPDM reclaimed rubber is mainly concentrated in outdoor fields, high-temperature environments, or areas requiring insulation, such as waterproof membranes for buildings, automotive door and window seals, radiator tubing and coolant pipes, air conditioning tubes, wire and cable casings, etc. It is especially suitable for rubber products exposed to sunlight, wind, and rain for long periods without oil resistance requirements. It can be used alone or combined with EPDM rubber and butyl rubber, effectively reducing raw material costs while ensuring the performance of rubber products.
(2) Main uses of nitrile reclaimed rubber
The application of nitrile reclaimed rubber mainly focuses on rubber products and wear-resistant parts that require contact with oils, such as nitrile O-rings, oil seals, leather bowls, diaphragms, oil-resistant rubber gaskets, corrugated pipes, seals, oil-resistant pipes, oil-resistant rubber sheets, oil-resistant rubber boots, rubber tapes, rubber diaphragms, and other oil-resistant rubber products, as well as wear-resistant components like rubber shock absorbers and friction blocks. They are indispensable in the production of oil-resistant components in petroleum, chemical, and automotive industries. Nitrile reclaimed rubber can generally replace nitrile base rubber in whole or in part, reducing production costs.
When selecting reclaimed rubber, rubber product manufacturers must select appropriate reclaimed rubber based on the specific performance requirements of the product: rubber products need long-term outdoor use and must withstand high and low temperatures or provide insulation, so prioritize ethylene propylene diem reclaimed rubber; Rubber products used in oil-related contact scenarios focus on oil resistance and wear resistance, with nitrile reclaimed rubber being the preferred choice. Choosing the right reclaimed rubber can effectively replace part of the raw rubber and reduce the cost of rubber products.
Exclusive original article [commercial authorization] reprint, excerpt and excerpt in any form are prohibited without written authorization. Focus on Hongyun rubber: learn the process formula and raw material technology of producing rubber products from recycled rubber to help you reduce costs and increase profits