Abstract
AbstractTo chemically bond polymer and organoclay, low molecular weight trimethoxysilyl‐modified polybutadiene (Silane) was used in this study. When Silane was added, ethylene‐vinyl acetate copolymer (EVA)/ethylene‐1‐butene copolymer (EtBC)/methyl tallow bis‐2‐hydroxyethyl quaternary ammonium‐modified montmorillonite (OH‐MMT)/Silane foams with and without maleic anhydride grafted EtBC (EtBC‐g‐MAH) display lower compression set than EVA/EtBC foams. According to the compression set result, OH‐MMT is more effective in improvement of compression set than dimethyl dihydrogenated tallow quaternary ammonium‐modified montmorillonite (DM‐MMT) because in addition of OH groups in the organoclay surface, the OH groups of the alkylammonium ion existed in interlayer of OH‐MMT may react with silanol group of Silane. The possible chemical reactions between Silanol groups of Silane and the hydroxyl groups of OH‐MMT and DM‐MMT were proved by ATR‐FTIR experiments. POLYM. ENG. SCI., 2008. © 2008 Society of Plastics Engineers.
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