热塑性复合材料
RMJM-我们都不是神的孩子
2023年3月20日发(作者：廖鸿韬)Aqueousreducedgraphene/thermoplasticpolyurethane
nanocomposites
Ken-HsuanLiaoa,1,YongTaeParka,AhmedAbdalab,2,ChristopherMacoskoa,*
aDepartmentofChemicalEngineeringandMaterialScience,UniversityofMinnesota,,Minneapolis,MN55455,USA
bDepartmentofChemicalEngineering,ThePetroleumInstitute,AbuDhabi,UnitedArabEmirates
articleinfo
Articlehistory:
Received19February2013
Receivedinrevisedform
13June2013
Accepted13June2013
Availableonline20June2013
Keywords:
Graphenenanocomposites
Aggregation
Conductivity
abstract
Aqueousreductionofgrapheneoxideisalowenergyandhazardous-chemicalfreemethodtoproduce
article,wereportthefirstpolymernanocompositeswithaqueousreducedgraphene
(ARG).DispersionofARGinpolymercanbechallengingbecauseoftheaggregationandstackingofsingle
co-solventprocesstoblendARGintothermoplasticpoly-
urethane(TPU)avoidsdryingARGbyaddinganorganicsolventbeforewateriscompletelyremovedfrom
persionofARGinTPUwassignificantlyimprovedusingtheco-
solventprocesscomparedtoconventionalsolventblendingasdemonstratedbythemechanicaland
electricalpropertiesofARG/er,propertiesoftheco-solventblendedARG
compositearesimilartothoseofthecompositesofthermallyreducedgraphene(TRG),whicharethe
evethatusingsolventexchangetoavoidaggregationduringdryingisa
generalstrategyapplicabletoothernanocompositepreparations.
Óhtsreserved.
uction
Thereisastronginterestingraphene/polymernanocomposites
duetotheirenhancedmechanical,electricalandbarrierproperties
atverylowgrapheneloadings[1].Nearlyallgraphene/polymer
nanocompositesarebasedongraphenepreparedbyexfoliationand
reductionofgraphiteoxide[2,3].Reductionofgraphiteoxideis
carriedouteitherchemicallyusing,forexample,hydrazine[4]or
sodiumborohydride[5],orthermallybyrapidheatingto1000