PMID- 16573030 OWN - NLM STAT- MEDLINE DCOM- 20060712 LR - 20190715 IS - 1533-4880 (Print) IS - 1533-4880 (Linking) VI - 6 IP - 2 DP - 2006 Feb TI - Polyethylene organo-clay nanocomposites: the role of the interface chemistry on the extent of clay intercalation/exfoliation. PG - 337-44 AB - High density polyethylene (HDPE)/clay nanocomposites have been prepared using three different functionalized polyethylene compatibilizers: an ethylene/vinyl acetate copolymer, a polyethylene grafted with maleic anhydride functions and a (styrene-b-ethylene/butylene-b-styrene) block copolymer. The nanocomposites were prepared via two different routes: (1) the dispersion in HDPE of a masterbatch prepared from the compatibilizer and the clay or (2) the direct melt blending of the three components. For each compatibilizer, essentially intercalated nanocomposites were formed as determined by X-ray diffraction and transmission electron microscopy. With the ethylene/vinyl acetate copolymer, a significant delamination of the intercalated clay in thin stacks was observed. This dispersion of thin intercalated stacks within the polymer matrix allowed increasing significantly the stiffness and the flame resistance of the nanocomposite. A positive effect of shear rate and blending time has also been put into evidence, especially for the process based on the masterbatch preparation, improving both the formation of thin stacks of intercalated clay and the mechanical properties and the flame resistance of the formed nanocomposites. FAU - Mainil, Michael AU - Mainil M AD - Laboratory of Polymeric and Composite Materials, University of Mons-Hainaut, Place du Parc 20, 7000 Mons, Belgium. FAU - Alexandre, Michael AU - Alexandre M FAU - Monteverde, Fabien AU - Monteverde F FAU - Dubois, Philippe AU - Dubois P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Nanosci Nanotechnol JT - Journal of nanoscience and nanotechnology JID - 101088195 RN - 0 (Aluminum Silicates) RN - 9002-88-4 (Polyethylene) RN - T1FAD4SS2M (Clay) SB - IM MH - Aluminum Silicates/*chemistry MH - Clay MH - Materials Testing MH - Microscopy, Electron, Transmission MH - *Nanotechnology MH - Polyethylene/*chemistry MH - X-Ray Diffraction EDAT- 2006/04/01 09:00 MHDA- 2006/07/13 09:00 CRDT- 2006/04/01 09:00 PHST- 2006/04/01 09:00 [pubmed] PHST- 2006/07/13 09:00 [medline] PHST- 2006/04/01 09:00 [entrez] AID - 10.1166/jnn.2006.908 [doi] PST - ppublish SO - J Nanosci Nanotechnol. 2006 Feb;6(2):337-44. doi: 10.1166/jnn.2006.908.