During the second heating process of the samples in DSC test, tendencies appear an obvious difference. It can be
clearly observed the double peaks in Fig.2. The peak shape of the sample with same filler is very similar, while it is
very different when the filler is different. Moreover, melting point of all the samples obtained in the second heating
is around 224oC, hence it seems that the content of nano-fillers has no influence on the melting point. The authorsbelieve that the appearance of the two peaks in the second heating is the result of the agglomeration of nano-fillers
occurred in the first heating process. As the viscosity of the resin is small in high temperature, the fillers in the resin
are adsorptive each other during the first heating. As a result, the polymer chain near the nano-cluster in the sample
is first melt and followed by the melting process of the chains far from the fillers. As a result, the curves turn out to
be double peaks in the second heating as shown in Fig.2.
0 50 100 150 200 250
0.5%nano-graphite
1%nano-graphite
Temperature/oC
During the second heating process of the samples in DSC test, tendencies appear an obvious difference. It can beclearly observed the double peaks in Fig.2. The peak shape of the sample with same filler is very similar, while it isvery different when the filler is different. Moreover, melting point of all the samples obtained in the second heatingis around 224oC, hence it seems that the content of nano-fillers has no influence on the melting point. The authorsbelieve that the appearance of the two peaks in the second heating is the result of the agglomeration of nano-fillersoccurred in the first heating process. As the viscosity of the resin is small in high temperature, the fillers in the resinare adsorptive each other during the first heating. As a result, the polymer chain near the nano-cluster in the sampleis first melt and followed by the melting process of the chains far from the fillers. As a result, the curves turn out tobe double peaks in the second heating as shown in Fig.2.0 50 100 150 200 2500.5%nano-graphite1%nano-graphiteTemperature/oC
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