茂名高岭土的改性分析

《茂名高岭土的改性分析》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、AbtractAbstractKaolmlswldelyusedmmduStnalproductlonasanon—metallicmatenal．IthasiIT]【portamrealisticmeaningstogoontheresearchof埘【odificationonkaolin，whichcani叫)roVeits印plicationperformance，makethebestofitandimprovetheenViroment．Maomingkaolinishi曲一qualitykaolin，it11asalreadybeen

2、印pliedinindustryextensiVely．SomysubjectofresearchisgoingontheresearchofmodificattiononMaomingka01in．ChemicalcoInposition，surfacecharacteriStics，physicalandchemicalproperties，crystalstructureandcr)rStallinityandphasechangecharacteristicsofkaoliIlofMaominghaVebeenanalyseoftheele

3、mentbyXRD，theIRDTA—TG，SEM，TEM．TheresuhindicatesthatSuzlloukaolinwithhi曲crystallinity，crystalstructurea11ddeVelopmentsamplewastubular，sheetmixedmo印hology，uneVensize．Pure，llighwhiteness，excellentsur白cepropeniesandphysicalandchemicalproperties，suitableforsurfacemodification．Maomi

4、Ilgkaolincalcinationexperimentsatdi岱：renttemperatures，difreremcalcinationtemperatureonthepH，suspendeddegreeaswellasthespecificsurf．acearea，thekineticsandthermodynamicsoftheroleofthecalCinationprocessarestudied．X-raynuoreScencespectroscopy，theIR，DTA-TGSEMtestana虮icaltoolsareuse

5、d．TheresearchandtestmgresuhsshowthatthechangesinthecryStalstructure，changesinthechemicalactiVityofcalcinedkaolin，thethermodymmiccharacteristicsandcalcinedkaolinphysicalandchemicalpropeniesofkaolinS04．2decomposition，calcinedS03contentillthekaolinreduce．Calcinationtemperatureof5

6、00℃beforekaolincryStalstructurealmoStremainedunchanged，thecalcinationtemperaturereaches550℃，ka01incrystalstmcturewasmoreseriousdamage．kaolincharacteriSticdi衢actionpeaksalmostemirelydisappeared，andthekaolinstmcturewaScompletelydestroyedin650。C．Calcinationtemperaturebetween750℃a

7、nd950℃，kaolinintotheamorphousmetal(aolin．Fromlowtohightenlperaturesinteringprocess，kaolincrystalphasechange，f’ollowedbykaolin，metakaolinandka01in-containingspinel．Thestudyfoundthatcalcinedin550。C，kaolinde-hydroxylation，de-hydroxylationofkaolinactivityeasiera11dorgaIlicsilanere

8、action，superiorphysicalandchemicalpropertiesofcalcinedkaolini