納米金屬氧化物的制備及其在軟pvc阻燃中的應(yīng)用

1、合肥工業(yè)大學(xué)碩士學(xué)位論文納米金屬氧化物的制備及其在軟PVC阻燃中的應(yīng)用姓名：李輝申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：化學(xué)工藝指導(dǎo)教師：楊?？?0100401SynthesisofNanosizedMetalOxidesandApplicationinFlexiblePVCFlameRetardantABSTRACTNanosizedzincferrite，zincaluminate，magnesiumaluminateandmagnesiumalu

2、minate／zincaluminatecompositemetaloxidespowderwerepreparedbyacoprecipitationroute，andthestructureofthepreparedsampleswascharacterizedthroughXraydiffractometer、SEMTheflameretardantoftheflexiblePVCtreatedwithcompositemetal

3、oxideswasstudiedbyoxygenindex(OI)anddifferentialthermalanalysis；ThemechanicalpropertiesofflexiblePVCwasdeterminedthroughtensilestrengthExperimentresultsshowthat：1)Theparticlesizeofthepreparedzincferriteisabout5nm～10nmThe

4、OIoftheflexiblePVCaddedwith25％masszincferriteincreasedfrom254％to297％whichtothedemandofnormalflameretardantforflexiblePVC；ThethermaldegradationperformanceoftheaboveflexiblePVCsampleisimprovedobviouslyThefinalamountofresid

5、ualcarbonincreasedfrom1122％to2069％；TheappropriateaddedamountofzincferritecanimprovethetensilestrengthandtoughnessofflexiblePVC2)Theparticlesizeofthepreparedzincaluminateisabout10nm。20nmTheOIoftheFlexiblePVCaddedwith30％ma

6、sszincaluminateincresasedfrom254％to298％；ThethermaldegradationperformanceoftheaboveflexiblePVCsampleiSimprovedobviouslyThefinalamountofresidualcarbonincreasedfrom1122％to1955％：TheflexiblePVCaddedwith30％masszincaluminateimp

7、rovedthetensilestrengthandtoughnessobviously3)Theparticlesizeofthepreparedmagnesiumaluminateisabout10nm620amFlexiblePVCadded30％massmagnesiumaluminateshowsthattheOIadvancedfrom254％to296％whichindicatestheflameretardantconf

8、ormtothedemandofflameretardantforflexiblePVC：ThethermaldegradationperformanceofflexiblePVCadded30％massmagnesiumaluminateisimprovedobviously，Thefinalamountofresidualcarbonincreasedfrom1122％to1733％；TheflexiblePVCaddedwith3

9、O％massmagnesiumaluminateimprovedthetensilestrengthandtoughnessobviously4)magnesiumaluminate／zincaluminatepreparedbythemethodofCOprecipitation，crystallitediameterabout10nm20nmFlexiblePVCadded30％masszincmagnesiumaluminates