Tensile Deformation Behaviours of Nylon 6 Based Nanocomposites

Abstract

Tensile tests were conducted on nylon 6/clay nanocomposites, with and without POE-g- MA rubber particles, over a range of temperatures below the glass transition and strain rates 10-4 to 10-1 s-1. It was shown that the yield strength varied with temperature and strain rate as the Eyring equation thus providing results on activation energy and activation volume for the physical mechanisms involved in these processes. Additionally, the tensile dilatometric responses indicated that the presence of POE-g-MA rubber particles did not alter the shear deformation mode of neat nylon 6. In contrast, the presence of clay layers changed the tensile yield deformation of nylon 6 from the more deviatoric plasticity to the more dilatational plasticity. In nylon 6/clay/POE-g-MA ternary nanocomposite, the volume strain response showed that POE-g-MA rubber particles promoted shear deformation and clay layers delamination was suppressed at yield.

Single Kaolinite Nanometer Layers Prepared by an In Situ Polymerization–Exfoliation Process in the Presence of Ionic Liquids

“…The incorporation of a silica and titanium oxide network prepared by sol–gel transition from the hydrolysis of alkoxysilanes has also been reported. , A variety of layered inorganic materials have been used, such as phosphates and phosphonates, layered metal oxides, layered double hydroxides, layered polysilicates, and clay minerals . Among clay minerals, the smectite family has been widely studied, ,− but the number of reports of a chemical exfoliation of kaolinite is scarce. , The exfoliation of kaolinite to form nanotubes or nanoscrolls was also recently reported . The rarity of kaolinite exfoliation is due to the remarkable structure of this mineral.…”