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1、---------------------------------------------------------------范文最新推薦------------------------------------------------------CNTs/TPU復(fù)合材料的制備與性能研究摘要:本論文將等離子體誘導(dǎo)接枝和含氟高聚物修飾技術(shù)相結(jié)合,利用等離子體引發(fā)含氟單體在碳納米管(CNTs)表面的接枝聚合,得到含氟聚合物膜包覆改性的功能化碳納米管(f-CNTs),并對熱塑性聚氨酯彈性體(TPU)進(jìn)行改性。結(jié)果表明,含氟聚氨酯綜合了聚氨酯和含氟聚合物的優(yōu)
2、點(diǎn),可顯著提高TPU彈性體性能。與純TPU彈性體相比,f-CNTs改性TPU彈性體的拉伸強(qiáng)度、斷裂伸長率、沖擊彈性、對水的接觸角和對甘油的接觸角和玻璃化轉(zhuǎn)變溫度分別提高了36%、7%、35%、56%、39%、42%;f-CNTs改性TPU彈性體使得其表面能降低了6029/30---------------------------------------------------------------范文最新推薦------------------------------------------------------%??梢姳疚陌l(fā)展的CNTs氟功能
3、化方法,有助于其在聚合物基體中的良好分散,所得f-CNTs有望成為高性能TPU彈性體的理想改性劑。5550關(guān)鍵詞:碳納米管;等離子體;氟化;改性劑;低表面能PreparationandpropertiesofCNTs/TPUcompositematerialsAbstract:Thearticleresearchedhowtocombinetheplasma-inducedgraft-modifiedandfluorine-containingpolymertechnology,theuseoffluorine-containingmonomers
4、initiatedbyplasmacarbonnanotubes(CNTs)surfacegraftpolymerization,toobtainafluorine-containingpolymerfilmcoatedwithamodifiedfunctioncarbonnanotubes(f-CNTs),andthermoplasticpolyurethaneelastomer(TPU)wasmodified.Theresultsshowthatthefluorine-containingpolyurethanecombinestheadvan
5、tagesofpolyurethaneandfluorine-containingpolymer,cansignificantlyimprovetheperformanceofTPUelastomers.PureTPUelastomers,f-CNTsmodifieldelastomerTPUtensilestrength,elongationatbreak,impactelasticity,thewatercontact29/30-----------------------------------------------------------
6、----范文最新推薦------------------------------------------------------tangleandthecontactangleofglycerolandtheglasstransitiontemperaturewasincreasedby36%,7%,35%,56%,39%,42%;f-CNTsTPUelastomermodifiedsothatitssurfacecanbereducedby60%.ThisvisibledevelopmentfluorinefunctionalizedCNTsme
7、thodhelpsinthepolymermatrixofthegooddispersionoftheresultingf-CNTsisexpectedtobeidealforhighperformanceTPUelastomermodifier.3.1.1顏色變化193.1.2紅外光譜193.2含氟等離子體誘導(dǎo)接枝聚合功能化CNTs研究203.2.129/30---------------------------------------------------------------范文最新推薦--------------------------
8、----------------------------目視法203.2.2紅外光譜213.3CNTs的氟功能化效果評價2