scholarly journals Graphene morphology effect on the gas barrier, mechanical and thermal properties of thermoplastic polyurethane

2020 ◽  
Vol 200 ◽  
pp. 108461 ◽  
Author(s):  
Muhammad Zahid ◽  
Antonio Esaú Del Río Castillo ◽  
Sanjay Balkrishna Thorat ◽  
Jaya Kumar Panda ◽  
Francesco Bonaccorso ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Thermoplastic Polyurethane ◽  
Mechanical And Thermal Properties ◽  
Gas Barrier ◽  
Morphology Effect

scholarly journals Synthesis and Characterization of Polyurethane-Nanoclay Composites

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Manasa Nayani ◽  
Subhashini Gunashekar ◽  
Nidal Abu-Zahra
Keyword(s):  
Thermal Properties ◽  
Cell Structure ◽  
Thermoplastic Polyurethane ◽  
Mechanical And Thermal Properties ◽  
Composite Foam ◽  
Weight Percentage ◽  
Nanocomposite Foams ◽  
Methylene Diphenyl Diisocyanate ◽  
Closed Mold

In this study polyurethane (PUR)-nanoclay composites were synthesized using methylene diphenyl diisocyanate, polyol, and hectorite clay. The weight percentage of hectorite clay was varied at three different levels to study its effect on the properties of the thermoplastic polyurethane nanocomposite. The nanocomposite polyurethane foam was synthesized in a 2-step reaction process. The first step involved the addition and dispersion of nanoclay into the isocyanate. The mixture was then mixed with the polyol, and the foam was cast in a preheated closed mold. The PUR-nanocomposite foams were analyzed for cell structure, physical, mechanical, and thermal properties. The composite foam showed significant increase in tensile and flexural strengths, abrasion resistance, and thermal properties.

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