Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1580921 | Materials Science and Engineering: A | 2009 | 7 Pages |
Abstract
Mesoporous MCM-41, whose pore channels were filled with cationic surfactant n-hexadecyltrimethylammonium bromide (CTAB) and poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (EO-PO-EO) sequence centered on a (hydrophobic) poly(propylene glycol) nucleus terminated by two primary hydroxyl groups (Pluronic F127, molecular weight = 11,500) template mixture inside the pore channels and on the outer surface of the particle, was used directly as new fillers for polypropylene, together with organic-montmorillonite (O-MMT). The effects of different structured nano-materials, MCM-41(with template)/OMMT, nano-SiO2/OMMT on the crystallization, morphology and mechanical properties of polypropylene composites were investigated. The results of PLM proved the co-incorporation of MCM-41(with template)/OMMT decreased the spherulites sizes of polypropylene and acted as efficient nucleating agents for PP crystallization. SEM revealed that the enhancement of the interface was obtained by adding MCM-41(with template)/OMMT. The results of mechanical tests showed that at same nano-material loading, the co-incorporation of O-MMT and MCM-41(with template) gave rise to much better toughness effects than co-incorporating of nano-SiO2/OMMT due to different interfacial structure between the fillers and the matrix.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Na Wang, Qinghong Fang, Yawei Shao, Jing Zhang,