Molecular origins of toughening mechanism in uniaxially stretched nylon 6 films with clay nanoparticles

Autor:	Mukerrem Cakmak, Zeynep Ergungor, Baris Yalcin, Yuma Konishi, Celal Batur
Rok vydání:	2008
Předmět:	chemistry.chemical_classification Materials science Polymers and Plastics Organic Chemistry Polymer Strain hardening exponent Casting chemistry.chemical_compound Nylon 6 chemistry Materials Chemistry Texture (crystalline) Deformation (engineering) Composite material Glass transition Necking
Zdroj:	Polymer. 49:1635-1650
ISSN:	0032-3861
Popis:	Introduction of nanoplatelets into the nylon matrix preorients the polymer chains in the film plane during melt casting leading to uniplanar (001) texture in nylon 6 crystalline as well as clay phase. This behavior enhances the uniformity of films during cold deformation well above the glass transition temperature by suppressing the localized necking behavior. The clay platelets reduce the polymer interchain hydrogen bonding and entanglements leading to decrease of long range “connectivity”. As a result, a delay in strain hardening during deformation occurs allowing much larger deformations to be attained without fracture. This in turn leads to increase in toughness.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ad99ae7e941ab47458ca16b683a3b3e https://doi.org/10.1016/j.polymer.2008.01.046 Zobrazit plný text záznamu Full Text from ScienceDirect