Automobile chassis rubber pads are generally made of natural rubber or styrene butadiene rubber as raw materials. With the continuous improvement of the quality of reclaimed rubber, many manufacturers now use reclaimed rubber in the chassis chassis pads, and even completely replace the original rubber with tire reclaimed rubber, significantly reducing the cost of raw materials. So in actual production, when using tire recycled rubber to reduce the production cost of chassis pads, how should rubber product manufacturers choose tire recycled rubber? And how to design the formula of automobile chassis rubber pad? What other issues need to be noted during processing?
1. How to choose tire recycled rubber for automobile chassis rubber pad
Tire reclaimed rubber is a reclaimed rubber processed from waste tires as the main raw material. It can be used with natural rubber, styrene-butadiene rubber, butadiene rubber and other general-purpose rubbers to replace part of the original rubber to reduce the cost of raw materials. According to the raw material parts, tire reclaimed rubber can be divided into tread reclaimed rubber, sidewall reclaimed rubber, whole tire reclaimed rubber, bead reclaimed rubber, etc., of which the reclaimed rubber has the highest effective hydrocarbon content and relatively high price. Adhesive is more cost-effective.
When tire reclaimed rubber is used alone or in combination with natural rubber and styrene butadiene rubber to produce car chassis pads, rubber product manufacturers can use cost-effective tire reclaimed rubber with good performance and lower price, which is more advantageous in terms of cost; cost allows Use environmentally friendly whole tire reclaimed rubber and odorless whole tire reclaimed rubber to avoid the release of irritating odors and harmful gases during the production and use of automobile chassis rubber pads to ensure human health and atmospheric environment.
2. Formula for production of automobile chassis rubber pads from pure tire recycled rubber
100 parts of tire reclaimed rubber, 1.8 parts of zinc oxide, 1 part of stearic acid, 50 parts of clay, 25 parts of light calcium, 18 parts of softener, 1 part of accelerator, 2 parts of sulfur, total: 198.8 parts. In the above formulation, the vulcanization system can use accelerator M and accelerator D together, with accelerator M as the main accelerator. The softening system can use petroleum asphalt or asphalt oil, which can significantly increase the plasticity of the rubber and reduce the cost of raw materials. If there is a certain demand for environmental protection or tastelessness, coal tar and asphalt should be avoided.
3. Skills of processing rubber pads for automobile chassis
In actual production, rubber product manufacturers can use tire reclaimed rubber in combination with natural rubber, styrene-butadiene rubber and other general-purpose rubbers to further improve the physical comprehensive performance of automobile chassis rubber pads, and can also completely use tire reclaimed rubber 2LLYY78 to significantly reduce costs. In actual production, if the tire reclaimed rubber is used together with the original rubber, it should be mixed with the reclaimed rubber after the original rubber is fully smelted; if the tire reclaimed rubber is used alone, the rubber refining time should be appropriately shortened to avoid overrefining the tire reclaimed rubber.
When setting the production process parameters of pure tire recycled rubber for the production of automobile chassis pads, rubber product manufacturers also need to comprehensively consider the processing temperature of raw materials, such as the softening point of petroleum asphalt at 150 ℃, reasonable adjustment of rubber mixing process parameters and vulcanization process parameters to improve the car The yield of chassis rubber pads can reduce the cost of raw materials while avoiding unnecessary losses.