The role of particle surface functionality and microstructure development in isothermal and non-isothermal crystallization behavior of polyamide 6/cellulose nanocrystals nanocomposites

AbstractStudy of the crystallization kinetics is particularly necessary for the analysis and design of processing operations, especially the non-isothermal crystallization behavior, which is due to the fact that most practical processing techniques are carried out under non-isothermal conditions. The non-isothermal crystallization behaviors of polyamide 6 (PA6) and PA6/high-density polyethylene/maleic anhydride/2,5-dimethyl-2,5-di(tert-butylperoxy)hexane (PA6/HDPE/MAH/L-101) composites were investigated by differential scanning calorimetry (DSC). The crystallization kinetics under non-isothermal condition was analyzed by the Jeziorny and Mo equations, and the activation energy was determined by the Kissinger and Takhor methods. The crystal structure and morphology were analyzed by wide-angle X-ray diffraction (WXRD) and polarized optical microscopy (POM). The results indicate that PA6/HDPE/MAH/L-101 has higher crystallization temperature and crystallization rate, which is explained as due to its heterogeneous nuclei.

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Miscibility and isothermal crystallization behavior of polyamide 6/poly(vinyl alcohol) blend

Journal of Polymer Science Part B Polymer Physics ◽

10.1002/polb.21470 ◽

2008 ◽

Vol 46 (13) ◽

pp. 1360-1368 ◽

Cited By ~ 18

Author(s):

Li Cui ◽

Jen-Taut Yeh ◽

Ke Wang ◽

Qiang Fu

Keyword(s):

Isothermal Crystallization ◽

Vinyl Alcohol ◽

Crystallization Behavior ◽

Polyamide 6 ◽

Poly Vinyl Alcohol

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Investigations of the Non-Isothermal Crystallization Behavior of Polyamide 6/Polyethylene-Octene/Organomontmorillonite Nanocomposites

Polymer-Plastics Technology and Engineering ◽

10.1080/03602559.2012.663046 ◽

2012 ◽

Vol 51 (8) ◽

pp. 780-785 ◽

Cited By ~ 8

Author(s):

Yanfei Zhang ◽

Lixia Hao ◽

Guosheng Hu

Keyword(s):

Isothermal Crystallization ◽

Crystallization Behavior ◽

Polyamide 6

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Crystallization behavior of functional polypropylene grafted graphene oxide nanocomposite

RSC Advances ◽

10.1039/c5ra08507a ◽

2015 ◽

Vol 5 (80) ◽

pp. 65058-65067 ◽

Cited By ~ 4

Author(s):

Cai-Liang Zhang ◽

Tao-Tao Wang ◽

Xue-Ping Gu ◽

Lian-Fang Feng

Keyword(s):

Graphene Oxide ◽

Isothermal Crystallization ◽

Crystallization Behavior ◽

Crystallization Process ◽

Crystallization Behaviors

With an aim to understand a role of grafted graphene oxide (GO) in crystallization process of polymer, isothermal and non-isothermal crystallization behaviors of a functional polypropylene grafted GO nanocomposite were investigated systematically.

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Non-isothermal crystallization behavior of PLA/LLDPE/nanoclay hybrid: Synergistic role of LLDPE and clay

Thermochimica Acta ◽

10.1016/j.tca.2013.04.016 ◽

2013 ◽

Vol 565 ◽

pp. 102-113 ◽

Cited By ~ 37

Author(s):

Ladan As’habi ◽

Seyed Hassan Jafari ◽

Hossein Ali Khonakdar ◽

Liane Häussler ◽

Udo Wagenknecht ◽

...

Keyword(s):

Isothermal Crystallization ◽

Crystallization Behavior

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Significantly Enhanced Crystallization of Poly(ethylene succinate-co-1,2-propylene succinate) by Cellulose Nanocrystals as an Efficient Nucleating Agent

Polymers ◽

10.3390/polym14020224 ◽

2022 ◽

Vol 14 (2) ◽

pp. 224

Author(s):

Siyu Pan ◽

Zhiguo Jiang ◽

Zhaobin Qiu

Keyword(s):

Crystal Structure ◽

Cellulose Nanocrystals ◽

Crystallization Behavior ◽

Crystallization Process ◽

Crystallization Rate ◽

Nucleating Agent ◽

Melt Crystallization ◽

Crystalline Morphology ◽

Poly Ethylene

Poly(ethylene succinate-co-1,2-propylene succinate) (PEPS) is a novel aliphatic biodegradable polyester with good mechanical properties. Due to the presence of methyl as a side group, the crystallization rate of PEPS is remarkably slower than that of the poly(ethylene succinate) homopolymer. To promote the potential application of PEPS, the effect of cellulose nanocrystals (CNC) on the crystallization behavior, crystalline morphology, and crystal structure of PEPS was investigated in this research with the aim of increasing the crystallization rate. CNC enhanced both the melt crystallization behavior of PEPS during the cooling process and the overall crystallization rate during the isothermal crystallization process. The crystallization rate of PEPS became faster with an increase in CNC content. The crystalline morphology study directly confirmed the heterogeneous nucleating agent role of CNC. The crystal structure of PEPS remained unchanged in the composites. On the basis of the interfacial energy, the nucleation mechanism of PEPS in the composites was further discussed by taking into consideration the induction of CNC.

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