Nonisothermal melt crystallization and subsequent melting behavior of biodegradable poly(hydroxybutyrate)/multiwalled carbon nanotubes nanocomposites
Nonisothermal melt crystallization and subsequent melting behavior of biodegradable poly(hydroxybutyrate)/multiwalled carbon nanotubes nanocomposites
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可生物降解聚羟基丁酸酯/多壁碳纳米管纳米复合材料的非等温熔融结晶及后续熔融行为
DOI：
10.1002/polb.21821
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发表时间：
2009-11
期刊：
影响因子：
--
通讯作者：
Qiu Z
中科院分区：
文献类型：
--
作者：
Xu C;Qiu Z
在这项工作中，研究了聚羟基丁酸酯（PHB）及其纳米复合材料在不同多壁碳纳米管（MWCNT）负载量下的非等温熔融结晶和随后的熔融行为。与纯 PHB 相比，增加 MWCNT 负载量显着增强了纳米复合材料中 PHB 的非等温熔融结晶；此外，对于纯 PHB 及其纳米复合材料来说，增加冷却速率会将结晶放热转移到低温范围。纯 PHB 及其从熔体非等温结晶的纳米复合材料均发现双熔融行为，这可以通过熔融、重结晶和重熔模型来解释。详细研究了 MWCNT 负载量、冷却速率和加热速率对 PHB 随后熔化行为的影响。研究发现，增加MWCNTs负载量、降低冷却速率和增加加热速率会限制纳米复合材料中PHB再结晶的发生。 © 2009 Wiley periodicals, Inc. J Polym Sci B 部分：Polym Phys 47: 2238–2246, 2009
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. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 2238–2246, 2009
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DOI：
10.1007/bf01987421
发表时间：
1997-07
期刊：
Journal of thermal analysis
影响因子：
--
作者：
Bernhard Wunderlich;I. Okazaki
通讯作者：
Bernhard Wunderlich;I. Okazaki
影响因子：
3
作者：
M. Sánchez-García;E. Giménez;J. Lagarón
通讯作者：
M. Sánchez-García;E. Giménez;J. Lagarón
DOI：
10.1007/bf01979445
发表时间：
1996-10
期刊：
Journal of thermal analysis
影响因子：
--
作者：
B. Wunderlich;A. Boller;I. Okazaki;Stefan Kreitmeier
通讯作者：
B. Wunderlich;A. Boller;I. Okazaki;Stefan Kreitmeier
DOI：
10.1002/(sici)1099-0488(19990301)37:5
发表时间：
1999-03
期刊：
Journal of Polymer Science Part B
影响因子：
--
作者：
E. Togawa;T. Kondo
通讯作者：
E. Togawa;T. Kondo
影响因子：
4.6
作者：
Zhaobin Qiu;T. Ikehara;T. Nishi
通讯作者：
Zhaobin Qiu;T. Ikehara;T. Nishi