钠基蒙脱土(N a-M on t)预先负载小分子单体丙烯酰胺和引发剂过氧化二异丙苯,发现经处理的蒙脱土(AM-M on t)层间距增大。将负载有丙烯酰胺和过氧化二异丙苯的蒙脱土与PE/PVC在双辊上混合,通过双辊的剪切作用进行插层复合。用FT-IR、XR...钠基蒙脱土(N a-M on t)预先负载小分子单体丙烯酰胺和引发剂过氧化二异丙苯,发现经处理的蒙脱土(AM-M on t)层间距增大。将负载有丙烯酰胺和过氧化二异丙苯的蒙脱土与PE/PVC在双辊上混合,通过双辊的剪切作用进行插层复合。用FT-IR、XRD等测试方法对复合材料进行表征,表明蒙脱土/PE/PVC三元纳米复合材料是插层型纳米复合材料。展开更多
Poly（lactic acid）/montmorillonite nanocomposites were prepared by the melt inter calation method. Their structures and thermal properties were investigated by WA XD, DSC and TGA techniques. The WAXD results show tha...Poly（lactic acid）/montmorillonite nanocomposites were prepared by the melt inter calation method. Their structures and thermal properties were investigated by WA XD, DSC and TGA techniques. The WAXD results show that the interlayer spacin g of montmorillonite in the nanocomposites was increased after melt intercalat ion, indicating that the molecular chains of poly（lactic acid） had been interc alated into the montmo-rillonite layers. The thermal stability of poly（lact ic acid） was obviously improved after intercalation with montmorillonite. Compar ed with that of pure poly（lactic acid）, the thermal decomposition temperatures o f the nanocomposites were increased by about 22.5 ℃ in air and 14 ℃ in N2 , respectively.展开更多
文摘钠基蒙脱土(N a-M on t)预先负载小分子单体丙烯酰胺和引发剂过氧化二异丙苯,发现经处理的蒙脱土(AM-M on t)层间距增大。将负载有丙烯酰胺和过氧化二异丙苯的蒙脱土与PE/PVC在双辊上混合,通过双辊的剪切作用进行插层复合。用FT-IR、XRD等测试方法对复合材料进行表征,表明蒙脱土/PE/PVC三元纳米复合材料是插层型纳米复合材料。
文摘Poly（lactic acid）/montmorillonite nanocomposites were prepared by the melt inter calation method. Their structures and thermal properties were investigated by WA XD, DSC and TGA techniques. The WAXD results show that the interlayer spacin g of montmorillonite in the nanocomposites was increased after melt intercalat ion, indicating that the molecular chains of poly（lactic acid） had been interc alated into the montmo-rillonite layers. The thermal stability of poly（lact ic acid） was obviously improved after intercalation with montmorillonite. Compar ed with that of pure poly（lactic acid）, the thermal decomposition temperatures o f the nanocomposites were increased by about 22.5 ℃ in air and 14 ℃ in N2 , respectively.
