6533b839fe1ef96bd12a59ab

RESEARCH PRODUCT

Calorimetric investigation of the vulcanization of factice

G. SandstedeErich Robens

subject

FacticeMaterials scienceVulcanizationchemistry.chemical_elementCalorimetryElastomerIsothermal processlaw.inventionCalorimeterVegetable oilchemistryAluminiumlawComposite material

description

Sulphur factice is produced from a mixture of a vegetable oil and sulphur at temperatures between 130 and 160‡C. The slow exothermal vulcanization results in rubber-like elastomers. We have developed an isothermal calorimeter for measurements both in the liquid and the solid state and simulated the production process at the laboratory scale. The compensating calorimeter consists of a hot plate equipped with thin aluminium rods descending into a Dewar vessel. Besides optimization of the temperature control, remarkable savings of time were achieved by previous elaidinization of the oil using hydrosulphide.

https://doi.org/10.1007/bf01912204