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Thermal Dilatation Measurement of Elastomeric Plastic Sheets
Mahel, Jindřich ; Kučera, Jaroslav (referee) ; Petrůj, Jaroslav (advisor)
The aim of the thesis was to design and build an apparatus for measuring linear thermal expansion of plastic waterproofing sheets. In the theoretical part of the thesis the methods used for measuring linear thermal expansion of solids were compared and the principle of thermoelectric cooling was described . For the measuring the Abbe comparator has been chosen , which has been equipped with a tempered chamber with a cascade of thermoelectric Peltier elements for cooling and heating of specimen. The experimental part of the thesis deals with the construction of the device and the actual measuring in the specified temperature range.
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Tack of textile coated with rubber blend
Mahel, Jindřich ; Petrůj, Jaroslav (referee) ; Kučera, František (advisor)
The theoretical part of the diploma thesis describes basic composition of the rubber stock and the methods used for its processing. It summarizes current knowledge about building tack. The experimental part of the thesis deals with the methods of accelerated aging proposal, which have been used for testing UV radiation, ozone, temperature and humidity effect on tack. After bringing two samples together by defined pressure, the tack was determined by T-peel test. Surfaces of the samples were characterized by scanning electron microscopy and infrared spectroscopy. The aditivation of the rubber stock was done in order to compare the effects of tackifiers on accelerated aging.
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Tack of textile coated with rubber blend
Mahel, Jindřich ; Petrůj, Jaroslav (referee) ; Kučera, František (advisor)
The theoretical part of the diploma thesis describes basic composition of the rubber stock and the methods used for its processing. It summarizes current knowledge about building tack. The experimental part of the thesis deals with the methods of accelerated aging proposal, which have been used for testing UV radiation, ozone, temperature and humidity effect on tack. After bringing two samples together by defined pressure, the tack was determined by T-peel test. Surfaces of the samples were characterized by scanning electron microscopy and infrared spectroscopy. The aditivation of the rubber stock was done in order to compare the effects of tackifiers on accelerated aging.
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Thermal Dilatation Measurement of Elastomeric Plastic Sheets
Mahel, Jindřich ; Kučera, Jaroslav (referee) ; Petrůj, Jaroslav (advisor)
The aim of the thesis was to design and build an apparatus for measuring linear thermal expansion of plastic waterproofing sheets. In the theoretical part of the thesis the methods used for measuring linear thermal expansion of solids were compared and the principle of thermoelectric cooling was described . For the measuring the Abbe comparator has been chosen , which has been equipped with a tempered chamber with a cascade of thermoelectric Peltier elements for cooling and heating of specimen. The experimental part of the thesis deals with the construction of the device and the actual measuring in the specified temperature range.
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