28. Nonisothermal Melt Crystallization and Subsequent Melting Behavior of Biodegradable Poly(hydroxybutyrate)/Multiwalled Carbon Nanotubes Nanocomposites. Xu C, Qiu Z.* J Polym Sci Polym Phys 2009; 47: 2238–2246.
主要译著者：Xu C, Qiu Z.*
出版机构：J Polym Sci Polym Phys 2009; 47: 2238–2246.
In this work, nonisothermal melt crystallization and subsequent melting behavior of poly(hydroxybutyrate) (PHB) and its nanocomposites at different multiwalled carbon nanotubes (MWCNTs) loadings were investigated. Increasing the MWCNTs loadings has enhanced the nonisothermal melt crystallization of PHB significantly
in the nanocomposites when compared with that of the neat PHB; furthermore,
increasing the cooling rates shift the crystallization exotherms to low temperature
range for both neat PHB and its nanocomposites. Double melting behavior is
found for both neat PHB and its nanocomposites crystallized nonisothermally from
the melt, which is explained by the melting, recrystallization, and remelting model.
Effects of the MWCNTs loadings, cooling rates, and heating rates on the subsequent melting behavior of PHB were studied in detail. It is found that increasing the MWCNTs loadings, decreasing the cooling rates, and increasing the heating rates would restrict the occurrence of the recrystallization of PHB in the nanocomposites. VVC 2009 Wiley Periodicals, Inc.