等規(guī)聚丙烯-順丁橡膠共混物的結(jié)構(gòu)及其性能研究.pdf

1、天津大學(xué)博士學(xué)位論文等規(guī)聚丙烯順丁橡膠共混物的結(jié)構(gòu)及其性能研究姓名：孫輝申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：材料學(xué)指導(dǎo)教師：楊賢金盛京20061201AbstraCtIsotacticp01)，propyl吼e／poly(cisbutadi鈕e)nlbber(iPP／PcBR)b1％dsw池v撕ousblendmtioswerepr印撇dbymeltmix噸lmderdi彘rentmi)【啦conditio璐111einnuenceofPcBRc伽

2、tentandVariollsmi)【ingconditio璐wereinvestigatedindetails0nstrIIctllre姐dproperties0fmP／PcBRblendsMiscibil毋ofiPP／PcBRblends、)Ir繃stIJdiedbydyIlamicmechanical觚alysis(DMA)Theresultshowed也atiPP趾dPcBRwerepanlymiscible，whichwasa

3、lsoVaHdatedbycalculationofmeequilibriummeltingtemperan鵬ofiPPandiPP／PcBRblendsThepartmiscibilit)rcouldnotimpr0Vebymeansof也einCreaseinm汶崦缸e，m恢ingtel：Ilper繃衛(wèi)eormixingrotationspeedPh嬲emo印holog)，ofiPP／PcBRb1％dsw硒observedbysca

4、n玎血gelectronmicroscope(SEM)Thedispersedphasew嬲dis訂ibutediIltlleconti婦【uo璐phaLseinthesh印eofirregul盯paniclesCocontinuollsphases仇lctureappearedasPcBRhVing40—50vol％contentwasaddedSEMimagesofiPP／PcBRblendsweredealtwi也byollrso

5、Randsomes仃uctllreparameterswereobtailledAs也econtentofthediSpersedphaseincreased，meaVerages娩eofthedisperSedphaSeincreasedandthedi嘶butionofmisphaSebec鋤ebroadDu】婦gt11efirSt23Ininofmixing，廿ledispersedphasebrokeupiIlt0smaller

6、panicles觚d“alIIlostdi血’tchangewimt11eincreaseof廿lerestmi)【ingtimeThe婦proVementofptlase鼬nlcturewasn’tproponionalt0也eincre嬲ingofmi)【ingtemperamre0rro乜tionspeedDi任erentstructurepar鋤eterswe豫gailledf的mVvi111agesofsmallangleli

7、ghtscattering(SALS)髓dsmall鋤91elightbacksca仕e血g(BSALS)，aIldthes鋤1econclusionsweregottenbytlleanalysisofchangeintheseparametersC巧stallinemo印hologyands饑lcltlleof伊P／PcBRblendsw雒i】westigatedbypolarized叩ticalIIlicroscopy(POM)，

8、small觚glelightscatte抽g(SALS)，wideangleX。瑚lydi脅ction(WQ(D)鋤dsmall舳gleXr：aysca仳e咖g(SALS)，respecavelyAnincreaseofPcBRcontemledt0lesspe—’ectionofsphemlites，vaguerbo啪d撕esbe吶eenSphemlites趾dsmallerspheml沁sizeThepresenceofPcBRal