| Attributes | Values |
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| rdf:type
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| Description
| - V této práci byl měřen vliv plniva na tepelné vlastnosti amorfního polymeru. Jako matrice byl použit ataktický polymetylmetakrylát, a-PMMA, a jako nanoplnivo acetylénové saze, CB. Objemová měření byla prováděna pomocí rtuťové dilatometrie a entalpická měření pomocí diferenciální snímací kalorimetrie. Jako první byla měřena tepelná kapacita a koeficient objemové teplotní roztažnosti, z nich byla poté vyhodnocena velikost imobilizované amorfní matrice. Rovněž bylo zjištěno snížení aktivační energie přechodu z taveniny do skla v přítomnosti plniva. Obecně je možno říct, že přídavek plniva změnil tepelné vlastnosti amorfního a-PMMA, které následně ovlivnily také relaxační chování polymeru pod teplotou skelného přechodu. (cs)
- In this work the effect of filler on thermal properties of amorphous matrix has been investigated. Atactic-poly(methyl methacrylate), a-PMMA, was used as polymer matrix and carbon black, CB, as nanofiller. Mercury-in-glass dilatometry and differential scanning calorimetry methods were used in experiment for comparison of thermal properties. The first measurements were performed to measure decrease in heat capacity and thermal expansion coefficient with amount of filler. From the difference between heat capacity in liquid and glassy state quantity of immobilized a-PMMA has been calculated. Also reduction of activation energy of transition from liquid to glassy state has been measured. In general, the addition of filler changes the thermal properties of amorphous a-PMMA. These properties consequently affect also behaviour of polymers in glassy region.
- In this work the effect of filler on thermal properties of amorphous matrix has been investigated. Atactic-poly(methyl methacrylate), a-PMMA, was used as polymer matrix and carbon black, CB, as nanofiller. Mercury-in-glass dilatometry and differential scanning calorimetry methods were used in experiment for comparison of thermal properties. The first measurements were performed to measure decrease in heat capacity and thermal expansion coefficient with amount of filler. From the difference between heat capacity in liquid and glassy state quantity of immobilized a-PMMA has been calculated. Also reduction of activation energy of transition from liquid to glassy state has been measured. In general, the addition of filler changes the thermal properties of amorphous a-PMMA. These properties consequently affect also behaviour of polymers in glassy region. (en)
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| Title
| - Comparison of thermal properties of neat a-PMMA and a-PMMA filled with CB
- Srovnaní termalních vlastnosti a-PMMA a a-PMMA plněného sazemi (cs)
- Comparison of thermal properties of neat a-PMMA and a-PMMA filled with CB (en)
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| skos:prefLabel
| - Comparison of thermal properties of neat a-PMMA and a-PMMA filled with CB
- Srovnaní termalních vlastnosti a-PMMA a a-PMMA plněného sazemi (cs)
- Comparison of thermal properties of neat a-PMMA and a-PMMA filled with CB (en)
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| skos:notation
| - RIV/70883521:28110/05:63503752!RIV06-MSM-28110___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/70883521:28110/05:63503752
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - Atactic polymethylmethacrylate; activation energy; carbon black; glass transition; immobilized layer (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - 21st ANNUAL MEETING OF THE POLYMER PROCESSING SOCIETY
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Sáha, Petr
- Slobodián, Petr
- Hadač, Jiří
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Polymer Processing Society
|
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
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