Media type: E-Article Title: The mechanical/thermal properties of microcellular injection‐molded poly‐lactic‐acid nanocomposites Contributor: Hwang, Shyh‐Shin; Hsu, Peming P.; Yeh, Jui‐Ming; Chang, Kung‐Chin; Lai, Ying‐Zhong Published: Wiley, 2009 Published in: Polymer Composites, 30 (2009) 11, Seite 1625-1630 Language: English DOI: 10.1002/pc.20736 ISSN: 0272-8397; 1548-0569 Origination: Footnote: Description: AbstractThis study investigated the influence of montmorillonite (MMT) content on the mechanical/thermal properties of microcellular injection‐molded polylactide (PLA)/clay nanocomposites. Carbon dioxide was the blowing agent. The PLA/MMT nanocomposites were prepared by twin screw extrusion. The results showed that as MMT content is increased, tensile strength, impact strength, and cell density decrease. This is caused by the speed degradation of PLA due to the addition of MMT. MMT decreases the crystallization temperature but increases the decomposition temperature of the nanocomposites. The XRD results showed that the layer spacing of the clay increases as MMT content increases. TEM pictures showed that the MMT is well dispersed within the PLA matrix. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers.