ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Nanocomposites of PA6 / organoclay at different concentration were prepared via meltintercalation method using a corotating twin screw extruder. The composites were prepared withBrazilian clay that was treated with different modifiers based on quaternary ammonium salts toobtain three types of organoclays. After extrusion the mixtures were injection molded intospecimens that were tested to obtain the properties of tensile strength, notched izod impact and heatdeflection temperature. The structure and morphology of the nanocomposites were characterized byx-rays diffraction (XRD) and transmission electron microscopy (TEM). The results showed that themodifier “dodigen” which promoted the intermediate expansion of the bentonite clay within thethree salts used for the modification of the clay affects more significantly the mechanical properties,HDT and morphology of the polyamide 6 due to the higher level of exfoliation observed in thesesystems compared to the others modifiers. The improvement of the properties was correlated to thelevel of exfoliation/intercalation obtained which depends on the process technique used, surfacetreatment of the Brazilian clays with organic salts and interaction between polymer and clay
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.570.18.pdf
