Cross-linked (Vulcanized) rubber
■Cross-linked (Vulcanized) rubber
It is started to use vulcanized rubber after Goodyear found that natural rubber could be cured by sulfur in 1839.Rubber compounding technology made substantial progress in the 1900s because Oenslager found vulcanization accelerator and carbon reinforcement effect.
After people made all kinds of efforts, more recently, the rubber formulation which blends silica (white carbon) attracts attention as a material of fuel-efficient tires.
DJK is entrusted with prototyping compounding rubber and vulcanized rubber and evaluating their physical properties in general rubber formulations. We can evaluate the rubber compounding ingredients such as feedstocks and additive agents.
| Items | Contents |
|---|---|
| Evaluation of rubber compounding agents | ‣We evaluate the performance of a variety of rubber compounding agents under consideration. ‣we explore the possibilities of rubber compounding agents on the feedstocks under consideration such as strengthening agents, inorganic fillers, crosslinking additives, softeners and stabilization agents. |
| Production of cross-linked rubber | ‣we prepare compounding rubber, and make cross-linked rubber sheets and test specimen. |
| Physical properties of cross-linked rubber | ‣mechanical characteristics … durometer hardness, tensile characteristics, compression set ‣thermal characteristics … uncured compounded rubber viscosity (Mooney viscosity), curing characteristics (culastometer) ‣dynamic viscoelasticity ‣durability |
| Consideration of rubber compounding | ‣we consider formulation of rubber and elastomer meeting purposes and requirements. |