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1、摘要本文主要研究了PP/POE/CaCO3“核壳”结构的复合材料制备及增韧机理分析。运用均匀设计与DPS分析方法进行分析，以乙烯■辛烯共聚物(POE)为增韧剂，以CaCO3为增强剂，将传统弹性体增韧方法与无机刚性粒子增韧增强手段相结合困用双螺杆挤出机,通过熔融共混工艺制备出了聚丙烯(PP)/POE/CaCO3三元复合材料，研究了POE与CaCCh用量对复合材料的力学性能的影响。结果表明：PP/POE/Nano-CaCO3“核壳”结构的复合材料缺口冲击强度随着POE用量的增加先减小后增大，随Nano-CaCO3用量的增加先增加后减小，其拉伸强
2、度随POE用量的增加而逐渐减少，随Nano-CaCO3用量的增加先略微增大后减少；PP/POE/pi-CaCO3/Nano-CaCO3的缺口冲击强度随片CaCCh的增加先增大后减少，拉伸强度随g-CaCO3的增加先增大后减少，而Nano-CaCO3对体系的强度影响不明显。对PP/P0E/Nano-CaC03复合体系综合分析的最优配方为100/15/11,此配方可以使缺口冲击强度达到16.02KJ/m2,无缺口冲击强度达到72.24KJ/m2,拉伸强度达到27.19MPao关键词：聚丙烯(PP);乙烯■辛烯共聚物(POE)；CaCO3；核壳结
3、构；增韧增强AbstractThestructureofPP/POE/CaCC)3ncore-shellnwasstudied,andthecompoundmaterialwasprepared,andtheplasticizingmechanismwasanalyzed・UnifbimdesignandDPSwereusedtoanalyze.,thentaketheethylene・octenecopolymer(POE)astheplasticizer,takeCaCC^astheintensifier,unifiesthetradi
4、tionalplasticizingmethodoftheelastomerandtheinorganicrigidgranuleplasticizingenhancementmethod,usesthedoublescrewrodextnidingmachine,throughfusedaltogethermixesthecrafttopreparethepolypropylene(PP)the/POE/CaCC)3threeYuancompoundmaterials,hasstudiedPOEandtheCaCC)3amountused
5、tothecompoundmaterialmechanicsperformanceinfluence,finallyindicated:PP/POE/Nano・CaCC)3ucore-shellnthestructurecompoundmaterialgapimpactintensityfirstreducesafterthePOEamountusedincreaseincreases,firstincreasesaftertheNano-CaCO3amountusedincreasereduces,itslongitudinalstren
6、gthgraduallydecreasesalongwiththePOEamountusedincrease,firstslightlyincreasesaftertheNano・CaCC)3amountusedincreasereduces;ThePP/POE/u-CaCOj/Nano-・CaCC)3gapimpactintensityfirstincreasesaftertheu-CaCO3increasereduces,thelongitudinalstrengthfirstincreasesaftertheu-CaCO3increa
7、sereduces,butNano・CaCC)3isnotobvioustothesystemintensityinfluence.AccordtoanalyzesyntheticalstrengthofPP/POE/Nano一-CaCOjcompoundsystem,wefindthebestfillprescriptionis100/15/11whichmakesgapimpactintensityachieve16.02KJ/m；andmakesnogapimpactintensityachieve72.24KJ/mandmakes
8、Iongitudinalstrengthachieve27.19MPa.Keywords:Polypropylene；ethylene-octenecopolymer；Calci
