POLYPROPYLENE/Sn-Pb ALLOY NANOCOMPOSITES

１ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｒｅｓｅａｒｃｈｏｆｎａｎｏｍｅｔｅｒｍｅｔａｌ，ｃｅｒａｍｉｃｓａｎｄｐｏｌｙｍｅｒｈａｓｂｅｉｎｇｆｌｏｕｒｉｓｈｅｄｉｎｗｏｒｌｄｓｉｎｃｅＧｌｅｉｔｅｒＨ［１］，ｐｒｅｐａｒｅｄｔｈｅｎａｎｏｍｅｔｅｒｐａｒｔ...

The polypropylene/SnPb (PP/SnPb) nanocomposites were prepared by melt blending PP and SnPb. The factors influencing the morphology of PP/SnPb nanocomposites were studied by SEM. The structure of PP crystalline in PP/SnPb composites was measured by wide angle Xray diffraction(WAXD). The processibility, volume resistivity, viscoelasticity and toughness of PP/SnPb nanocomposites were discussed. The results show that SnPb can improve notably the processibility of PP. It is found that there exist crystal of PP in PP/SnPb composite. The amount of the crystal is related to the volume fraction and particle demension d of SnPb. It is also found that the electrically critical volume fraction c of SnPb decreases notably with the decrease of d. The complex tensile moduli of PP/SnPb composites increase with the increase of and the decrease of d. The tensile toughness of PP/SnPb nanocomposites is ten times as high as PP and the izod impact toughness is 2.8 *6]times as high as PP.