The tan peak temperaturesfortheTPSanditsnanocomposite
are givenin Table 3. ThepeakpositionfortheTPSoccurredat49 ◦C
and increasedto83 ◦C and81 ◦C forthenanocompositesbasedon
the CNFsandtheACNFs,respectively.Anincreaseinthetan ı value
with temperatureindicatesthatthenanocompositeswerebecom-
ing moreviscousafterraisingthetemperature(Liu, Zhong,Chang,
Li, &Wu,2010). Theresultsconfirmedanimprovementindynamic
mechanical propertiesoftheTPSreinforcementbyboththeACNFs
and theCNFs.Theincreaseinstoragemodulus,togetherwithaposi-
tive shiftinthetan peak fortheCNFs/TPSnanocompositecouldbe
due tothestrongchemicalinteractionbetweenthematrixandthe
reinforcements thatrestrictedthesegmentalmobilityofthepoly-
mer chainsinthevicinityofthenanoreinforcements(Bondeson,
Syre, &Niska,2007). However,itmaybenotedthattheACNFsdid
not improvethedynamicmechanicalpropertiesoftheneatTPSas
much astheCNFsones.Thissuggestedthattheinterfacewasnot
good enoughduetothesurfacemodificationanditisinagreement
with thetensiletestingresults
The tan peak temperaturesfortheTPSanditsnanocompositeare givenin Table 3. ThepeakpositionfortheTPSoccurredat49 ◦Cand increasedto83 ◦C and81 ◦C forthenanocompositesbasedonthe CNFsandtheACNFs,respectively.Anincreaseinthetan ı valuewith temperatureindicatesthatthenanocompositeswerebecom-ing moreviscousafterraisingthetemperature(Liu, Zhong,Chang,Li, &Wu,2010). Theresultsconfirmedanimprovementindynamicmechanical propertiesoftheTPSreinforcementbyboththeACNFsand theCNFs.Theincreaseinstoragemodulus,togetherwithaposi-tive shiftinthetan peak fortheCNFs/TPSnanocompositecouldbedue tothestrongchemicalinteractionbetweenthematrixandthereinforcements thatrestrictedthesegmentalmobilityofthepoly-mer chainsinthevicinityofthenanoreinforcements(Bondeson,Syre, &Niska,2007). However,itmaybenotedthattheACNFsdidnot improvethedynamicmechanicalpropertiesoftheneatTPSasmuch astheCNFsones.Thissuggestedthattheinterfacewasnotgood enoughduetothesurfacemodificationanditisinagreementwith thetensiletestingresults
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ตาล สูงสุด temperaturesforthetpsanditsnanocomposite
เป็น givenin โต๊ะ 3 thepeakpositionforthetpsoccurredat49 ◦ C
increasedto83 ◦ and81 ◦ C และ C forthenanocompositesbasedon
cnfsandtheacnfs respectively.anincreaseinthetan , ıค่า
-
ing กับ temperatureindicatesthatthenanocompositeswerebecom moreviscousafterraisingthetemperature ( Liu Zhong , ช้าง ,
Li & Wu , 2010 )theresultsconfirmedanimprovementindynamic
propertiesofthetpsreinforcementbyboththeacnfs และกล thecnfs . theincreaseinstoragemodulus togetherwithaposi , -
tive shiftinthetan สูงสุด forthecnfs / tpsnanocompositecouldbe
-
เนื่องจาก tothestrongchemicalinteractionbetweenthematrixandthe เสริม thatrestrictedthesegmentalmobilityofthepoly แมร์ chainsinthevicinityofthenanoreinforcements ( bondeson
เซียร์ , ,& niska , 2007 ) อย่างไรก็ตาม itmaybenotedthattheacnfsdid
ไม่ improvethedynamicmechanicalpropertiesoftheneattpsas มาก asthecnfsones . thissuggestedthattheinterfacewasnot
ดี enoughduetothesurfacemodificationanditisinagreement กับ thetensiletestingresults
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