Automotive hoses are important components used in automobiles to transport liquids (such as fuel, lubricating oil, coolant) or gases (such as refrigerant and air), connect various components, provide media transmission channels for various subsystems of automobiles, and ensure the normal operation of engine, air conditioning, steering and other systems. Many automotive hoses are processed from EPDM as the main raw material, and the rational use of EPDM recycled rubber can effectively reduce the cost of raw materials.
1. Performance characteristics of EPDM recycled rubber
EPDM recycled rubber is processed from EPDM head rubber, unvulcanized EPDM glue, waste EPDM rubber products such as sealing strips, etc., retaining the basic performance characteristics of EPDM rubber, high and low temperature resistance, ozone resistance, aging resistance excellent, and good compatibility with EPDM raw rubber, which can be used alone or in combination with EPDM to produce various types of automotive hoses, reducing production costs under the premise of ensuring the performance of finished products.
2. Which car hoses can use EPDM recycled glue
Radiator hoses used to transport high-temperature coolant in automobile cooling systems, air conditioning hoses for transporting refrigerant in air conditioning systems, brake hoses for hydraulic brake systems, and cooling water hoses for transporting coolant in automobile cooling systems E5LYY48 can all be added to a small amount of EPDM recycled adhesive. In the production of automotive hoses, it is recommended to choose EPDM recycled rubber with high ethylene propylene content, high fineness and no impurities to ensure that the hose can be used for a long time and liquids and gases are not easy to penetrate.
3. The automobile hose is mixed with EPDM recycled rubber vulcanization formula
(1) EPDM rubber/EPDM recycled rubber is used together to produce automobile radiator hoses
85 parts of EPDM rubber, 15 parts of EPDM recycled rubber, 5 parts of zinc oxide, 1 part of stearic acid, 105 parts of carbon black N550, 60 parts of paraffin oil, 2.5 parts of polyethylene glycol 400, 1 part of C5 petroleum resin, 1 part of anti-aging agent RD, 1 part of cross-linking adjuvant TAC, and 8 parts of cross-linking agent BIBP; Total 284.5 copies.
(2) EPDM rubber/EPDM recycled rubber is used to produce the outer layer of automobile air conditioning hose vulcanization formula
80 parts of EPDM rubber, 20 parts of EPDM recycled rubber, 5 parts of zinc oxide, 1 part of stearic acid, 145 parts of carbon black N550, 20 parts of aromatic oil, 50 parts of naphthenic oil, 1.3 parts of accelerator M, 1.9 parts of accelerator TMTM, 1.6 parts of accelerator TMTD, 1.2 parts of sulfur; A total of 327 copies.
When using EPDM recycled rubber to reduce the production cost of automotive hoses, it is necessary to choose the appropriate EPDM recycled rubber according to the use occasion and performance needs of the hose, reasonably determine the proportion of recycled glue, appropriately adjust the production formula and production process, and further optimize the performance of the finished product while reducing costs.
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