Which chemicals can be used as rubber anti-scorching agents?

Three types of chemicals can be used as rubber anti-scorching agents: organic acids, nitroso compounds, and sulfenamides. (1) Organic acids include salicylic acid, benzoic acid, o-acetic acid, benzoic acid, and phthalic anhydride.

What causes Scorch in rubber processing & anti-scorching agent?

Rubber undergoes early vulcanization (crosslinking) and loses fluidity and reprocessing ability during storage and processing due to heat, resulting in the scorch phenomenon. Scorch of rubber is one of the common problems in rubber processing. An anti-scorching agent is used to prevent this issue.

What is the best anti-scorching agent for rubber?

NURCHEM ASE is an excellent anti-scorching agent for natural rubber and synthetic rubber, especially for EPDM,NBR and HNBR. (%) max. (%) max. (%) max.

What are rubber chemicals?

We Offer Rubber Chemicals. Rubber Chemicals are synthetic, organic chemicals used by the rubber industry to make a wide range of rubber parts for use in many different applications. They fall into two main categories: Anti-degradants – essential for ensuring long life for rubber parts by protecting them against oxidation and light.

How to prevent Scorch in rubber compound?

Precautions for preventing scorch will be introduced. For each batch of rubber compound, based on the original data,set the range of scorch time, and continuously adjust and solve within this range. For example, set to Mooney scorch time, 125 ℃ Mixed rubber can be cooled to room temperature by water cooling, air cooling, or both.