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Kompozity PMMA s anorganickým plnivem: interpretace vlivu struktury matrice za přítomnosti plniva
Dušková, Miroslava ; Dušek, Karel ; Zelenka, J.
The study showed that the properties of a glassy composite with crosslinked matrix adhering to the rigid filler particles are sensitive to the polymer network structure of the matrix . It was proved by morphological, swelling and mechanical studies that the adhesion between the crosslinked poly(methyl methacrylate) matrix and the ATH filler is maintained in the swollen state and during small-strain. In the swollen state or at temperatures about 60 °C above Tg, the mechanical relaxations are relatively fast and equilibrium can be reached within approximately one hour. A model of equilibrium swelling constrained by surfaces of various geometries has been developed based on statistical thermodynamics of (Gaussian) networks.
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