日本一区福利在线,国产精品一区二区精品视频观看 ,91成人超碰

Rubber/Graphene Oxide Composites :Interfacial Interaction and Performances

資料類型：

PDF文件

關鍵詞：

Rubber Graphene oxide Interfacial adhesion Dielectric relaxation
spectra

資料大小：

100K

所屬學科：

分子表征

來源：

第六屆亞歐研討會上處理和性能增強聚合物會議文集（2013.6.2-6 武漢）

簡介：

Inpolymercomposites,theinterfacialinteractionbetweenpolymermatrixandfillersisakeyfactorthatgovernsthepropertiesofthefinalcomposites.Inpresentwork,theelastomericcompositesconsistingofgrapheneoxide(GO)sheetsandbutadiene-styrene-vinylpyridinerubber(VPR)werepreparedbyco-coagulationprocesswithdifferentflocculants,hydrogenchlorideandcalciumchloride,inordertoformtwokindsofbondinginterfaces,namelyionicbonding(HVPR)andhydrogenbondinginterfaces(CaVPR).Theinterfacialinteractions(hydrogenbondingandionicinterfacialbonding)werecharacterizedbyXPSandUVspectra.Comparisonoftheeffectsoftheinterfacialinteractiononthepropertiesofthecompositeswasconducted.ItshowedthatthemechanicalpropertiesandgaspermeabilityofHVPR/GOcompositeswereobviouslysuperiortothoseofthecompositeswithhydrogenbondinginterface.Withionicinterfacialbonding,inclusionof3.6vol%ofGOinVPRgenerated21-foldincreaseinglassymodulus,7.5-foldincreaseinrubberymodulus,and3.5-foldincreaseintensilestrength.TheveryfinedispersionofGOandthestrongionicinterfaceinthehybridswereresponsibleforsuchunprecedentedreinforcingefficiencyofGOtowardsVPR.Torevealtheeffectsofinterfacialinteractiononthemoleculardynamics,thedielectricrelaxationspectraofthecompositeshavebeeninvestigated.Resultsshowedthatboththecompositesexhibitedtwodistinctrelaxationprocesses,segmentalrelaxationandinterfacialrelaxation.ConcentrationofGOhadnoimpactonthesegmentaldynamicsofCaVPR,whereas,thesegmentaldynamicsofHVPRsloweddownwhenGOcontentwasabovel.5vol%.Meanwhile,thesegmentalrelaxationofHVPRwasalwaysalittlefasterthanitsCaVPRcounterpart.Inthetemperaturerangeof5一350C,anewrelaxationmode,whichwasslowerthanthesegmentalrelaxationandattributedtotheinterphasewithrestrictedchaindynamics,wasobservedforallthecompositeswithGOloadinglowerthan2.5vol%.TheinterfacialrelaxationtimeofHVPRcontinuouslydecreasedwiththeGOconcentration.However,itdecreasedfirstthenincreasedforCaVPR.Mostinteresting,theinterfacialrelaxationofHVPRwasslowerthanthatforCaVPR.Thee9andthecalculatedfragilityparameterandeffectiveactivationenthalpyoftheinterfacialchainsinHVPRwerealwayshigherthanthoseinCaVPRwiththesameGOconcentration.A11theevidencesindicatedstrongerinterfacialinteractioninHVPRthaninCaVPR.

作者：

Z. H. Tang, S. W. Wu, B. C. Guo , L. Q. Zhang

上傳時間：

2013-07-01 16:05:21

下載次數：

消耗積分：

立即下載：

好

1人

中

1人

差

1人

友情提示：下載后對該資源進行評論，即可獎勵2分。

報告錯誤：

1.下載無效　 2. 資料明顯無價值　 3. 資料重復存在

相關評論 共有0人發表評論

更多評論

你還沒有登錄，無法發表評論，請首先

免責聲明：本站部分資源由網友推薦，來自互聯網，版權屬于原版權人，如果不慎侵犯到您的權利，敬請告知，我們會在第一時間撤除。本站中各網友的評論只代表其個人觀點，不代表本站同意其觀點。

最新上傳資料
·	電紡納米纖維增強聚合物復合材料...
·	超高相對分子質量聚乙烯的研究進...
·	吸油樹脂的研究進展
·	雙酚A二縮水甘油醚的合成
·	間戊二烯-苯乙烯共聚物的合成
·	用負載型鈦系催化劑制備的乙丙共...
·	Simulation of Fiber Orientati...
·	Advances in Ordered Polymer-b...
·	Construction of Dual Stimuli...
·	Small Amount of Functionalize...
·	Multi-scale Linear Low-nsity ...
·	Magnetic iron oxide (Fe3O4) ...
·	Surfactant Free C02-in-Water ...
更多>>

熱點資料
·	Electroactive Responsive Shap...
·	Novel Method for Silver Nanow...
·	Construction of Dual Stimuli...
·	Simulation of Fiber Orientati...
·	吸油樹脂的研究進展
·	超高相對分子質量聚乙烯的研究進...
·	Electrospun Nanocomposite fro...
·	Structural Aspects of Polymer...
·	Unidirectional Natural Fibre ...
·	Study on Structure and Proper...
·	Multiaxial Fatigue Behaviour ...
·	Actuation and Shape SMP/CNTs...
·	Advances in Polymer Nanocompo...
更多>>

相關資料
·	乳液復合技術: 一種節能、高效、...
·	A Polyaniline/Mn02/Graphite f...
·	Liquid crystalline Graphene O...
·	Gaining Insights into Functio...
·	Counterion Dynamics and Confo...
·	Thermodynamic Properties of L...
·	Reduced Graphene Oxide with S...
更多>>

国产精品igao视频网网址不卡日韩,亚洲综合在线电影,亚洲婷婷丁香,黄色在线网站噜噜噜