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This document specifies two dynamic test methods for evaluating nonlinear viscoelastic behavior, filler network integrity, and rubber–filler interactions of vulcanized rubbers and thermoplastics.
Method A: Determination of nonlinear viscoelastic response using Fourier-transform rheology (FTR) under large-amplitude oscillatory shear.
Method B: Determination of filler–filler and rubber-filler interactions using dynamic mechanical analysis (DMA) through strain-sweep testing (Payne effect).
NOTE: Rubber that vulcanizates with more than 80 IRHD hardness will show slippage behaviour at very high strain analysis.
To develop a guideline for determination of Payne Effect of Rubber compounds with different types of filler loading with varied grades and amount. Payne effect is one of the important aspects for rubber industry to analyse the interaction between Polymer-Filler and help to understand the filler network, also. The techniques presented in this draft are most widely used to understand the Payne Effect.
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