Correlations between dynamic fragility, activation energy and glass transition temperature in polymeric composite materials: An overview from literature
Journal Title: Materials Science: Advanced Composite Materials - Year 2018, Vol 2, Issue 1
Abstract
Here, it is compiled data from literature for glass transition temperature (Tg) and activation energy (Ea) for different types of polymeric composite materials. A correlation among both parameters and dynamic mechanical curves is analyzed in terms of reinforcement effect and its correlation with the glassy and elastomeric moduli, as well the wideness of the main transition region. Besides, all results are discussed in terms of dynamic fragility. The results indicate that the glass transition temperature has not a direct relation with reinforcement effect promoted both in the glassy and/or elastomeric moduli. Moreover, the dynamic fragility concept seems do not be applied in polymeric composite materials since in the glass transition region the format of the storage, loss and tan delta curves vary strongly, depending on the specific polymeric composite material family.
Authors and Affiliations
Heitor Luiz Ornaghi Junior, Matheus Poletto, Felipe Gustavo Ornaghi
Keywords
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