Industrial rubber sheets are generally processed with natural rubber as the main raw material, but natural rubber is not only expensive but also has a particularly high price fluctuation. Therefore, more and more industrial rubber sheet manufacturers are focusing on recycled rubber resources. The processing of waste rubber products into rubber powder and reclaimed rubber is the main way of processing waste rubber, and then the rubber powder and reclaimed rubber are recycled into the production of rubber products, and industrial rubber sheets are no exception.
The prices of reclaimed rubber and reclaimed rubber powder are very low, but the usage and dosage in industrial rubber sheets vary widely. So which material should rubber sheet manufacturers choose? Which reclaimed rubber or reclaimed rubber powder is more suitable for the production of industrial rubber sheets?
1. Reference formula of industrial rubber sheet mixed with reclaimed rubber powder
40 parts of natural rubber, 60 parts of oil-extended styrene-butadiene rubber, 120 parts of reclaimed rubber powder, 4 parts of zinc oxide, 2.2 parts of stearic acid, 1 part of antioxidant A, 1 part of antioxidant D, 2 parts of paraffin, carbon black N330 30 parts, 110 parts of heavy calcium, 7 parts of motor oil, 7 parts of pine tar, 0.8 parts of accelerator DM, 1.25 parts of accelerator M, 0.15 parts of accelerator TMTD, 2.6 parts of sulfur; total: 389 parts.
2. Reference formula of industrial rubber sheet mixed with recycled rubber
40 parts of natural rubber, 60 parts of cis-butadiene rubber, 180 parts of recycled rubber, 5 parts of zinc oxide, 2.7 parts of stearic acid, 1.5 parts of antioxidant A, 3 parts of paraffin wax, 45 parts of carbon black N330, 90 parts of heavy calcium, 30 parts of motor oil parts, 1.8 parts of accelerator CZ, 4 parts of sulfur; total: 463 parts.
3. The difference among reclaimed rubber powder and reclaimed rubber
Reclaimed rubber powder is a powdery substance formed by mechanically pulverizing vulcanized rubber. It is an elastic powder material with the basic characteristics of powder materials. Recycled rubber is waste rubber that undergoes physical and chemical processes such as pulverization, heating, and mechanical treatment to transform it from an elastic state into a plastic and viscous rubber that can be re-vulcanized. Rubber powder and reclaimed rubber 2ELYY39 are very different in physical form, production process and application field. Relatively speaking, the production process of reclaimed rubber powder is simpler and environmentally friendly, and the blending effect of reclaimed rubber and rubber is better.
In order to reduce the production cost of industrial rubber sheets, both reclaimed rubber powder and reclaimed rubber can achieve this purpose. In order to further improve the mixing effect of reclaimed rubber powder in the rubber compound, it is recommended to use 60-80 mesh rubber powder products in industrial rubber sheets, and activated rubber powder can be used if necessary. When using reclaimed rubber to reduce the production cost of industrial rubber sheets, tire tread reclaimed rubber or rubber shoe reclaimed rubber is often used. In actual production, industrial rubber sheets can also use reclaimed rubber powder and reclaimed rubber together to reduce the cost of raw materials on the premise of ensuring the quality of rubber sheets.
4. Recycled rubber powder/recycled rubber combined to produce industrial rubber sheet formula
40 parts of natural rubber, 60 parts of oil-extended styrene-butadiene rubber, 60 parts of reclaimed rubber, 60 parts of reclaimed rubber powder, 4 parts of zinc oxide, 1.8 parts of stearic acid, 1 part of antioxidant A, 1 part of antioxidant D, 2 parts of paraffin , 30 parts of carbon black N330, 110 parts of heavy calcium, 7 parts of engine oil, 7 parts of pine tar, 0.8 parts of accelerator DM, 1.25 parts of accelerator M, 0.15 parts of accelerator TMTD, 2.5 parts of sulfur; total: 388.5 parts.
When using reclaimed rubber powder or reclaimed rubber to reduce the production cost of industrial rubber sheets, the manufacturer must select suitable reclaimed rubber powder or reclaimed rubber products according to the technical indicators of the rubber sheet, reasonably control the amount of recycled waste rubber resources, and appropriately adjust the formula of rubber products , to prepare cost-effective industrial rubber sheets with better comprehensive performance and lower cost, which can effectively improve the economic benefits of manufacturers.
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