1. Anti-scorch agent

Also known as vulcanization retarder, or scorch inhibitor and retarder, it is a substance that prevents early vulcanization of rubber compounds during processing. English name: anti-scorching agent; vulcanization retarder.

2. The purpose of using anti-scorch agent

In the rubber industry, with the development of production and the improvement of the performance of rubber products, the problem of increasing heat generation of rubber during processing has appeared one after another. Therefore, how to ensure the safety during processing has become an important issue. The main method used now is to add a small amount of anti-scorch agent during the process to improve the safety of the processing process and increase the storage life of the rubber compound or glue. Scorch agents can often easily meet the requirements for the scorch properties of rubber compounds. During storage and processing, the rubber compound will undergo early vulcanization (crosslinking) and lose its fluidity and ability to reprocess due to the action of heat, which is the phenomenon of scorch. Scorching of rubber compounds is one of the common problems in rubber processing. In the modern high-temperature, fast and efficient processing technology and the use of compounding agents that are easy to cause scorching (such as reinforcing resins, meta-formaldehyde system binders) , fine particle carbon black, etc.), the scorch problem is more likely to occur. Scorch can be solved by adjusting the vulcanization system, but be careful to cause changes in the properties of the rubber compound; the storage or processing conditions of the rubber compound can be improved by cooling, but complex equipment is required, and it is simple and easy to use an anti-scorch agent to prevent scorch method. Therefore, scorch retarder has become an important operational aid for rubber processing safety.

3. Environmentally friendly anti-scorch agent E

It is a good environment-friendly anti-scorch agent for natural rubber and synthetic rubber. Applicable to EPDM, NBR and HNBR, prolong the scorch time without affecting the vulcanization speed. It is suitable for thiuram vulcanization system and can be used as a second accelerator to reduce vulcanization time and improve production efficiency. No pollution, no discoloration can be used for light-colored products. At the same time, the vulcanization crosslinking density of EPDM and NBR compounds is increased, the tensile stress is increased, and the compression deformation is reduced. No harmful substances are produced during the vulcanization process. For automobile sealing strip, dosage: 0.5-1.5 servings.