POLYMERS

Rubber Compound for Tires — Decomposition

Besides the plasticizer portion (ca. 7%), the first elastomer components during the Decomposition reactionA decomposition reaction is a thermally induced reaction of a chemical compound forming solid and/or gaseous products. decomposition of a rubber compound are derived at 383°C (38%) and the second at 448°C (31%).

The Carbon BlackTemperature and atmosphere (purge gas) affect the mass change results. By changing the atmosphere from, e.g., nitrogen to air during the TGA measurement, separation and quantification of additives, e.g., carbon black, and the bulk polymer can become possible.carbon black portion is calculated at 20% and the Ash ContentThe ash is a measure of the mineral oxide content on a weight basis. Thermogravimetric analysis (TGA) in an oxidative atmosphere is a well-proven method to determine the inorganic residue, commonly referred to ash, in organic materials such as polymers, rubbers, etc. Therefore, the TGA measurement will identify if a material is filled and calculates the total filler content.ash content at 4%. The position of the peak temperatures of the derived TGA curves (DTG) show that the compound is a Carbon BlackTemperature and atmosphere (purge gas) affect the mass change results. By changing the atmosphere from, e.g., nitrogen to air during the TGA measurement, separation and quantification of additives, e.g., carbon black, and the bulk polymer can become possible.carbon black-filled NR/SBR rubber blend. (measurement with TG 209 F1 Libra®®)