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- W1520532836 abstract "The functionalization of polypropylene grafted with glycidyl methacrylate (GMA) through reactive extrusion is reported. The influences of the concentration of GMA and initiator dicumyl peroxide (DCP), reaction temperature and residence time of materials in the extruder on the grafting degree (G(subscript d)), grafting efficiency (G(subscript e)) and melt flow rate (MFR) were investigated. The results showed that the G(subscript d) of PP-g-GMA was in direct proportion to the loading level of GMA. And there was a very limited effect of the concentration of the initiator on the grafting degree. The proper processing temperature window of the reative extrusion was 195~230℃. When the residence time of materials in the extruder was over one minute the grafting degree kept constant. The MFR of PP-g-GMA was proportional to the concentration of initiator and inversely proportional to the loading level of monomer. There were very limited effects of both the residence time and extruding temperature on the MFR of PP-g-GMA and no obvious influence of the concentration of monomer and initiator, extruding temperature and residence time of material in the extruder on the grafting efficiency of PP-g-GMA." @default.
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- W1520532836 date "2001-06-10" @default.
- W1520532836 modified "2023-09-24" @default.
- W1520532836 title "反应挤出条件对PP-g-GMA接枝率、接枝效率和熔体流动速率的影响" @default.
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