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THE EFFECTS OF DIFFERENT METHODS OF ADDING NANO-SiO2 ON MECHANICAL PROPERTIES OF UP/NANO-SiO2 IN-SITU HYBRID COMPOSITES  
THE EFFECTS OF DIFFERENT METHODS OF ADDING NANO-SiO2 ON MECHANICAL PROPERTIES OF UP/NANO-SiO2 IN-SITU HYBRID COMPOSITES
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所属学科: 分子表征
来源: 2008纳米填充阻燃聚合物及复合材料国际学术研讨会(10.16-10.17,北京)
简介:
Onthepremiseofthetetraethylorthosilicate,hydrolyticsiliconsolandthenano-SiO2powderrespectively,aseriesofunsaturatedresinscontainingnano-SiO2groupsweresynthesizedbyin-situpolymerization.TheUP/nano-SiO2hybridcompositeswerepreparedbymoldingtechnology.TheeffectsofdifferentkindsofUP/nano-SiO2hybridcompositesonmechanicalpropertieswerestudiedbystaticmechanicalmethods.Microstructureofthecompositeswasalsoinvestigatedbymeansofscanningelectronmicroscopy(SEM).Theresultsshowedthattheimpactstrengthandtheflexuralstrengthofthecompositeswiththenano-SiO2powder(3wt%)couldreachto5.6300KJ/m2and95.248MParespectively,whichwere46.7%and14%higherthanthepureUPcompositesrespectively;thewearvolumewas0.0228cm3andwas42.5%lowerthanthepureUPcomposites,andthemicro-hardnessofthecompositestreatedat140oCfor2hwas50.59HV.SEMmicrographsofwornsurfacesrevealedthattheSiO2particleswerewelldispersedandtheinterfacialadhesionbetweenfiberandresinwasobviouslyincreasedduetotheintroductionofthenano-SiO2.
作者: Min Wang, Chun Wei, Jian Lv, Fengchao Jia, Dongjie Qin, Jingming Lin
上传时间: 2009-02-17 13:53:13
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gl-xu    2009-03-03 20:17:55
都搞烂了好不好
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