EPDM recycled adhesive is processed from EPDM head adhesive, unvulcanized EPDM glue or waste EPDM sealing strips as raw materials, and has excellent high and low temperature resistance, ozone resistance, weather resistance and other properties. There are many kinds of rubber parts in automobiles, and the rubber parts exposed to the outdoor environment (ultraviolet rays, high temperature, humidity, etc.) for a long time are mostly processed with EPDM as the main raw material.
1. The advantages of EPDM recycled rubber mixed with automotive rubber parts
Compared with EPDM rubber, EPDM recycled rubber has much lower price, good plasticity, uniform dispersion of compounds, low compounding power consumption, easier tablet pressing operation, more accurate shape and size of the finished product, less heat generation in processing, and less early vulcanization. The use of EPDM recycled rubber alone or in combination with the original rubber to produce auto parts can not only reduce the cost of raw materials, but also improve the performance of the rubber processing process and the use of finished products.
2. Which auto parts can use EPDM recycled rubber
In actual production, automotive parts such as automobile door and window seals, radiator hoses, and charging gun dust covers can use EPDM recycled glue, and it is necessary to select EPDM recycled glue with appropriate indicators according to the specific performance needs of the parts.
It is recommended to choose EPDM recycled adhesive with high fineness, no impurities and no migration for automobile door and window seals to ensure the smooth appearance of the sealing strip and no discoloration migration. The radiator hose is recommended to use EPDM recycled rubber with high ethylene propylene content, which has better high temperature resistance and coolant erosion resistance; Rubber parts such as dust cover for charging guns need to take into account dustproof, wear resistance and electrical insulation, and reasonably control the ratio of EPDM recycled rubber to original rubber; Priority is given to environmentally friendly EPDM recycled rubber for parts in the car.
3. Key points of EPDM recycled rubber production auto parts formula design
When using EPDM recycled rubber to produce auto parts, the commonly used vulcanization system is sulfur vulcanization system and peroxide vulcanization system, and it is necessary to choose the appropriate accelerator and vulcanization conditions according to the needs E5LYY729 of the components. Carbon black is the most commonly used reinforcing agent for auto parts; The commonly used softeners for EPDM recycled rubber are petroleum-based oils, including aromatic oils, naphthenic oils and paraffin oils, the most suitable is paraffin oil, and coumaron resins, pine tar, esters and low molecular weight polymers may also be used.
When designing the formula of auto parts containing EPDM recycled rubber, it is necessary to comprehensively consider the mechanical strength, weather resistance, ozone resistance, heat resistance and electrical insulation performance requirements of each rubber component, and reasonably determine the proportion of EPDM recycled adhesive, the variety and amount of compound.
When using EPDM recycled rubber as the main raw material to produce auto parts, it is also necessary to strictly control the mixing temperature and time to ensure that the compound is evenly dispersed and avoid scorching or uneven performance. Extruded compounds need to ensure extrusion speed and dimensional accuracy to improve processing performance by adjusting the paste and filler in the formulation. In the later stage, the editor will share with you the low-cost vulcanization formula of EPDM recycled rubber production of rubber seals, radiator hoses and other rubber products for the production of automotive rubber seals.
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