39 research outputs found
A new crystallization process in polyproplylene highly filled with calcium carbonate
Get PDFThe influence of high amounts of calcium carbonate filler on the crystallization behavior of PP is investigated by DSC and fast scanning DSC measurements. The non-isothermal crystallization process at industrially relevant cooling rates of about 100 K/s is significantly influenced by the calcium carbonate filler. Isothermal crystallization measurements indicate a new crystallization process in the temperature range between 45 °C and 80 °C caused by the filler content. To find an explanation for the origin of this process we have analyzed the interaction between polymer and filler, the crystalline structure and the crystallization kinetics. From the experimental results we conclude that the newly observed crystallization process is governed by an additional nucleation process for the growth of a-phase crystals
Evaluation of heat capacity measurements by temperature-modulated differential scanning calorimetry
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Comparing crystallization kinetics among two G-resin samples and iPP via Flash DSC measurement
No full textGeometric analysis of the calorimetric glass transition and fragility using constant cooling rate cycles
No full textIn situ temperature-modulated microscopy observation of two-phase co-existing states of coumarin and coumarin derivative in melting
No full textNon-debye nature in thermal relaxation and thermal properties of lithium borate glasses studied by modulated DSC
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