Nonisothermal and isothermal crystallization behavior of isotactic polypropylene/chemically reduced graphene nanocomposites

2016 ◽  
Vol 38 ◽  
pp. E342-E350 ◽  
Author(s):  
Dahang Tang ◽  
Songrong Li ◽  
Junlong Yang ◽  
Juqiao Su ◽  
Qi Yang ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
Graphene Nanocomposites ◽  
Reduced Graphene

Variation of non-isothermal crystallization behavior of isotactic polypropylene with varying β-nucleating agent content

2010 ◽  
Vol 59 (10) ◽  
pp. 1441-1450 ◽  
Author(s):  
Linli Xu ◽  
Xiuju Zhang ◽  
Kai Xu ◽  
Shaoquan Lin ◽  
Mingcai Chen
Keyword(s):  
Isotactic Polypropylene ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
Nucleating Agent

scholarly journals Study on non-isothermal crystallization behavior of isotactic polypropylene/bacterial cellulose composites

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42113-42122 ◽  
Author(s):  
Bo Wang ◽  
Hai-Rong Zhang ◽  
Chao Huang ◽  
Lian Xiong ◽  
Jun Luo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Bacterial Cellulose ◽  
Isotactic Polypropylene ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
High Crystallinity ◽  
Cellulose Composites

Bacterial cellulose (BC) has great potential to be used as a new filler in reinforced isotactic polypropylene (iPP) due to its characteristics of high crystallinity, biodegradability and efficient mechanical properties.

scholarly journals Non-Isothermal Crystallization Behavior and Thermal Properties of Polyethylene Tuned by Polypropylene and Reinforced with Reduced Graphene Oxide

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1428
Author(s):  
Antimo Graziano ◽  
Otavio Augusto Titton Dias ◽  
Christian Garcia ◽  
Shaffiq Jaffer ◽  
Jimi Tjong ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Graphene Oxide ◽  
Thermal Properties ◽  
Reduced Graphene Oxide ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
Research Work ◽  
Deformation Resistance ◽  
Reduced Graphene ◽  
Heat Deformation

This research work is the first to report thermal stability, heat deformation resistance, and crystallization behavior of a Polyethylene (PE)-based biphasic polyolefin system reinforced with Reduced Graphene Oxide (RGO), which was obtained through Graphene Oxide (GO) chemical reduction. Polypropylene (PP) represented the polymeric dispersed phase. A strategic PE/PP/RGO manufacturing procedure was employed to thermodynamically localize RGO at the PE/PP interface, as confirmed by Transmission Electron Microscopy (TEM), bringing a uniform micro phase dispersion into the macro phase. In addition, studies of PE non-isothermal crystallization kinetics indicated that the morphology tunable micro phase and the nanolayered RGO promoted a nucleation-controlled PE crystallization, which was supported by Polarized Light Optical Microscopy (PLOM). This, together with fine morphology, justified the remarkable enhancement registered for the ternary system’s thermal stability and heat deformation resistance. Different filler loads were employed, with weight fractions of 2% and 4%. It was observed that the former, being better exfoliated and more homogeneously distributed at the PE/PP interface than the latter, led to a more improved PE crystallization, alongside a greater ternary system’s thermal properties. Moreover, the thermal stability of PE/PP reinforced with 2% of RGO was even higher than that of virgin PP, while their heat deformation resistance values were found to be similar. Therefore, this unique outcome provides industries, such as the energy and automotive sectors, with the opportunity to substitute PP-rich products with those mostly comprised of a cheaper, more abundant, yet performant PE.

Isothermal Crystallization Behavior of Isotactic Polypropylene H/D Blends as Viewed from Time-Resolved FTIR and Synchrotron SAXS/WAXD Measurements

2009 ◽  
Vol 42 (12) ◽  
pp. 4191-4199 ◽  
Author(s):  
Kummetha Raghunatha Reddy ◽  
Kohji Tashiro ◽  
Takashi Sakurai ◽  
Noboru Yamaguchi ◽  
Sono Sasaki ◽  
...  
Keyword(s):  
Isotactic Polypropylene ◽  
Isothermal Crystallization ◽  
Crystallization Behavior ◽  
Time Resolved ◽  
Synchrotron Saxs
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