Crystallization behavior and morphology of polylactide and PLA/clay nanocomposites in the presence of chain extenders

2012 ◽  
Vol 53 (5) ◽  
pp. 1053-1064 ◽  
Author(s):  
N. Najafi ◽  
M.C. Heuzey ◽  
P.J. Carreau
Keyword(s):  
Crystallization Behavior ◽  
Clay Nanocomposites ◽  
Chain Extenders

Investigating the Effect of Nanoclay Loadings and Re-Processing on the Melting and Crystallization Behavior of PP/Clay Nanocomposites

2019 ◽  
Vol 951 ◽  
pp. 21-25
Author(s):  
Achmad Chafidz ◽  
Sholeh Ma'mun ◽  
Haryanto ◽  
Wara Dyah Pita Rengga ◽  
Prima A. Handayani ◽  
...  
Keyword(s):  
Crystallization Behavior ◽  
Crystallization Process ◽  
The Other ◽  
Degree Of Crystallinity ◽  
Clay Nanocomposites ◽  
Scanning Calorimetry ◽  
Onset Crystallization Temperature ◽  
Significant Difference ◽  
The Degree Of Crystallinity ◽  
Melting And Crystallization

In this study, PP/clay nanocomposites have been fabricated at different nanoclay loadings, i.e. 0, 5, 10, and 5 wt% for the 1stcycle and 2ndcycle (re-processing). The prepared nanocomposites were then characterized by a Differential Scanning Calorimetry (DSC) to investigate the effects of nanoclay loadings and re-processing on the melting and crystallization of the nanocomposites. The DSC results showed that the melting temperature,Tmwas not significantly affected by the nanoclay loadings and re-processing. In the other hand, the degree of crystallinity,Xcof the nanocomposites was higher than that of neat PP, but only reached a maximum at nanoclay loading of 5 wt% (i.e. 51.2% for NC-5-I and 48.3% for NC-5-II). Thereafter, theXcdecreased at higher nanoclay loadings. There was no significant difference inXcbetween 1stcycle and 2ndcycle. Additionally, in all nanocomposites samples for both cycles, there were two crystallization temperatures, i.e.Tc1andTc2. In the overall crystallization process, theTcof nanocomposites increased by 11-12°C compared to that of neat PP. Whereas, the onset crystallization temperature,Tocalso increased by approx. 13°C. Apparently, there was no significant effect of nanoclay loadings and re-processing on theTcndTocof the nanocomposites.

Strain-induced crystallization behavior of phenolic resin crosslinked natural rubber/clay nanocomposites

2015 ◽  
Vol 132 (39) ◽  
pp. n/a-n/a ◽  
Author(s):  
Abdulhakim Masa ◽  
Sougo Iimori ◽  
Ryota Saito ◽  
Hiromu Saito ◽  
Tadamoto Sakai ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Crystallization Behavior ◽  
Phenolic Resin ◽  
Clay Nanocomposites ◽  
Strain Induced Crystallization ◽  
Induced Crystallization

New insight into the crystallization behavior of poly(ethylene terephthalate)/clay nanocomposites

2008 ◽  
Vol 46 (21) ◽  
pp. 2380-2394 ◽  
Author(s):  
Guohu Guan ◽  
Chuncheng Li ◽  
Xuepei Yuan ◽  
Yaonan Xiao ◽  
Xiaoqing Liu ◽  
...  
Keyword(s):  
Crystallization Behavior ◽  
Ethylene Terephthalate ◽  
Clay Nanocomposites ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Insight Into

Control of thermal degradation of polylactide (PLA)-clay nanocomposites using chain extenders

2012 ◽  
Vol 97 (4) ◽  
pp. 554-565 ◽  
Author(s):  
N. Najafi ◽  
M.C. Heuzey ◽  
P.J. Carreau ◽  
Paula M. Wood-Adams
Keyword(s):  
Thermal Degradation ◽  
Clay Nanocomposites ◽  
Chain Extenders

Cell Structure Evolution and the Crystallization Behavior of Polypropylene/Clay Nanocomposites Foams Blown in Continuous Extrusion

2010 ◽  
Vol 49 (20) ◽  
pp. 9834-9845 ◽  
Author(s):  
Wentao Zhai ◽  
Takashi Kuboki ◽  
Lilac Wang ◽  
Chul B. Park ◽  
Eung K. Lee ◽  
...  
Keyword(s):  
Crystallization Behavior ◽  
Cell Structure ◽  
Structure Evolution ◽  
Clay Nanocomposites ◽  
Continuous Extrusion
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