Fizika Tverdogo Tela, 2024 Volume 66, Issue 12,Pages 2159–2162(Mi ftt10525)
International Conference Physics.SPb/2024 Surface physics, thin films
Statistical aspects of the strength evolution at interfaces of compatible dissimilar amorphous polymers with radically different glass transition temperatures
Abstract:
Using the Weibull’s and the normal probability methods and a series of tests for normality, a statistical analysis of the distributions of adhesive strength $(T_g)$ developing at the contact zone of the samples of polystyrene (PS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) has been performed. The contact has been carried out in the region of the glass transition temperature $(T_g)$ of PS corresponding to the region $T_g$ – 100$^\circ$C for PPO. The most correct type of the $\sigma$ distribution has been determined. The compliance with the hypothesis of the normal probability for the arrays of the $\sigma$ distributions has been analyzed. A new approach has been proposed that allows for a correct comparison of the $\sigma$ dispersion within the framework of various statistical methods of analysis.
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