Although it is generally produced with a mixture of 45 micron powder sulfur and 1% and/or 4% white oil, we can prepare mixtures according to the request (recipe) of our companies.
VULCANIZATION in rubber paste production;
It is a cross-linking process in which individual rubber (polymer) molecules are converted into a three-dimensional network of interconnected (polymer) chains through chemical cross-links (from sulfur).
The vulcanization process was discovered in 1839, and the people responsible for this discovery were Charles Goodyear in the US and Thomas Hancock in the UK. Both discovered the use of Sulfur and White Lead as a vulcanization system for Natural Rubber. This discovery was a major technological breakthrough for the advancement of the world economy.
The vulcanization of rubbers with sulfur alone is an extremely slow and inefficient process. The chemical reaction occurs between sulfur and Rubber Hydrocarbon mainly at C = C (double bond), and each crosslink requires 40 to 55 sulfur atoms (in the absence of accelerator). Process takes approximately 6 hours at 140°C For uneconomical completion by any manufacturing standard. The vulcanizates produced in this way are extremely prone to oxidative degradation and do not have sufficient mechanical properties for practice. rubber applications. These limitations were overcome with the invention of accelerators. became part of rubber compound formulations and also R&D subjects.(Adaptation)
Lubrication is of great importance in removing the volatility of micronized sulfur. By means of oily sulfur, ease of use is provided in both open and closed systems.
