Cray Valley has introduced silane-terminated diene resin technology that enables electric tire tread compounders to improve the traction/rolling resistance performance balance. Placing the silane group at the terminal position is a unique design feature that offers benefits over other technologies. In addition, the diene resins utilized in this study—poly(butadiene) and poly(farnesene)—can be sustainably sourced.
Technical Notebook: EV tread development – Reducing the Payne Effect with sustainably sourced silane-terminated resins
We explore the impact of incorporating silane-terminated resins specifically on the filler-filler network, or Payne Effect, as a function of silica filler loading. A relatively new analytical method to quantify the level filler-filler interactions and the kinetics of filler network formation is applied to measure the extent of filler-filler networking through “strain jump” experiments. Using the strain jump and traditional dynamic shear measurement techniques, Payne Effect reductions up to 50 percent can be achieved.
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