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Hybrid composite based on dental matrix
Almásyová, Zuzana ; Bystřický, Zdeněk (referee) ; Přikryl, Radek (advisor)
This bachelor´s thesis deals with the study of the effect of alumina fillers addition on mechanical properities of experimental composite based dimethacrylate matrix. Important properities and aspects of particle composite, composite mechanics and surface treatments methods were described in the theoretical section of this work. As a studied system was dimethacrylate matrix with micro-filler in form of barium glass and nano-filler in form of alumina. The filler was modified by two silanization methods. Surface treatment of the filler was studied by termogravimetry and infrared spectroscopy. Morphology of fracture areas was examined using scanning electron microscopy with the aim to characterize dispersion of particles in the matrix. Mechanical properties of prepared composite materials were established by the testing of the flexural properties. The best silanization method of particular filler was determined. The addition of alumina had a negative effect on the resulting mechanical properties of prepared composite.
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Hybrid composite based on dental matrix
Almásyová, Zuzana ; Bystřický, Zdeněk (referee) ; Přikryl, Radek (advisor)
This bachelor´s thesis deals with the study of the effect of alumina fillers addition on mechanical properities of experimental composite based dimethacrylate matrix. Important properities and aspects of particle composite, composite mechanics and surface treatments methods were described in the theoretical section of this work. As a studied system was dimethacrylate matrix with micro-filler in form of barium glass and nano-filler in form of alumina. The filler was modified by two silanization methods. Surface treatment of the filler was studied by termogravimetry and infrared spectroscopy. Morphology of fracture areas was examined using scanning electron microscopy with the aim to characterize dispersion of particles in the matrix. Mechanical properties of prepared composite materials were established by the testing of the flexural properties. The best silanization method of particular filler was determined. The addition of alumina had a negative effect on the resulting mechanical properties of prepared composite.
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