(PE/POE)-g-MAH增韧尼龙6的研究

马来酸酐接枝PE／POE(POE为乙烯—辛烯共聚物)对尼龙6(PA6)有显著的增韧效果。对马来酸酐接枝PE／POE的产物进行了红外光谱表征，证实了马来酸酐在PE／POE主链上的接枝。同时研究了(PE／POE)—g—MAH增韧PA6的形态、机械性能及简要的增韧机理。结果表明，PA6与(PE／POE)—g—MAH有很好的相容性，共混体系的缺口冲击强度比纯尼龙6有明显提高，当(PE／POE)—g—MAH用量达到30％时，可获得超韧尼龙。但同时，随着(PE／POE)—g—MAH用量的增加。共混体系的拉伸和扭曲强度有一定程度的下降，其中扭曲强度下降较为明显。

TOUGHENING OF NYLON6 WITH PE/POE BLEND GRAFTED MALEIC ANHYDRIED

Super-tough nylon6 was prepared by using PE/POE blend grafted maleic anhydride as an impact modifier.The Infrared Spectrum of (PE/POE)-g-MAH was investigated,and the FTIR results verified the fact that maleic anhydride monomer was indeed grafted onto the PE/POE blend.The morphology,mechanical properties,and brief toughening mechanism of the blend system were also studied.Results indicated that PA6 showed pretty good compatibility with (PE/POE)-g-MAH,and the notched impact strength of the blend system increased drastically compared with the pure nylon6 as the content of (PE/POE)-g-MAH increased. When the content of (PE/POE)-g-MAH reached 30%,super-tough nilon6 was obtained.Meanwhile,the tensile and flexural strength decreased to some extent while the content of (PE/POE)-g-MAH increased.