Does vulcanizing agent increase the hardness of rubber?

Increase the crosslinking density of the rubber, which is conducive to improve the hardness of the rubber. For sulfur yellow vulcanization system, increase the amount of accelerator, especially TMTD accelerator, is conducive to improving the hardness. Increasing the amount of vulcanization can also increase the hardness of the rubber. The increase of vulcanization dosage can also increase the crosslinking density, enhance the hardness of the rubber, such as sulfur yellow dosage of 30 ~ 50 mass parts can be prepared hard Rubber, but the amount of sulfur yellow and the amount of accelerator are increased, easy to produce frost phenomenon, the amount needs to be balanced. In addition, for the sulfur yellow vulcanization system, high hardness rubber can be prepared when the amount of sulfur yellow and accelerator are increased. In addition, for the sulfur vulcanization system, high hardness rubber due to high filler, mixing and vulcanization process to increase the heat, easy to cause scorching phenomenon, so for insurance purposes, with the anti-scorching agent is also very beneficial, such as CTP. For example, CTP, etc.

For peroxide vulcanization system, increase the amount of peroxide can improve the hardness, but should not be too high, you can choose a variety of peroxide vulcanizing agent and use, in addition to the addition of In addition, the addition of crosslinking agent can significantly enhance the crosslinking density of the rubber, such as DCP vulcanizing agent, you can add TAIC, PDM (HVA-2), TAC, PL-400 (TMPTMA), of course, you can also choose to use sulphur yellow as a crosslinking agent.