FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2356642998> ?p ?o ?g. }

• W2356642998 abstract "Carbon nanotubes (CNTs) have outstanding characteristics including high mechanical properties,namely tensile strength and elastic modulus,and still remarkable flexibility,excellent thermal and electric conductivities,low percolation thresholds (loading weight at which a sharp drop in resistivity occurs) and high aspect ratios (length to diameter ratio,L/D),while the latter provides the nanotubes with additional advantage over spherical fillers to obtain high property composites.Therefore,CNTs have the potential to act as a reinforcing filler of polymer matrices.The tetraglycidyl-4,4′-diaminodiphenylmethane (TGDDM) cured with 4,4′-diaminodiphenylsulphone (DDS) and filled with graphite or carbon fibers are commonly used as a polymeric matrix in high performance composites employed in the aircraft and spacecraft industries.In present paper,multi-walled carbon nanotubes (MWNTs) as a nano-filler were incorporated in the TGDDM/DDS epoxy.The thermal properties of the composites were studied by differential scanning calorimetry (DSC),dynamic thermal analysis (DMTA) and thermalgravitimetric analysis (TGA).In addition,the dispersion of MWNTs in the epoxy was also investigated by scanning electron microscopy (SEM).In DSC studies,Kissinger and Flynn-Wall-Ozawa (FWO) methods were used to study the nonisothermal cure kinetics of the MWNTs filled TGDDM/DDS composites at different heating rates.The activation energy (E_a) of cure reactions of the MWNTs filled epoxy composites was obtained by Kissinger and FWO methods.For all composites,the E_a obtained by Kissinger method was slightly less than that of FWO method.With the addition of MWNTs,the E_a of the epoxy composites decreased first and then increased with the increase of the MWNTs contents.These results showed that the incorporation of carbon nanotubes accelerated the cure reaction of the TGDDM/DDS epoxy at lower MWNTs content due to the interaction between the hydroxyl groups on the surface of nanotubes and the epoxy.However,due to the high surface energy of carbon nanotubes,the viscosity of MWNTs/epoxy composites increased at higher MWNTs content.Hence,the mobility of hydroxyl groups was hindered,and the reaction energy of composites increased with increasing MWNTs contents.The influence of carbon nanotubes on the thermal stability of the epoxy was studied by TGA.It is shown that MWNTs had little influence on the thermal stability of the cured epoxy.The storage modulus and glass transition temperature of MWNTs filled TGDDM/DDS were investigated by DMTA.It is seen that the storage modulus of TGDDM/DDS system was enhanced with the increasing of MWNTs content,that is,the modulus increased 6.3% and 7.8% at 1 wt% and 5% MWNTs content,respectively.The glass transition temperature of the epoxy slightly decreased.Furthermore,the DMTA results of MWNTs/TGDDM/DDS composites were compared with that of carbon nanofibers (CNFs)/TGDDM/DDS composites.It was shown that the interactions between CNFs and epoxy were better those between that MWNTs and epoxy.The dispersion of carbon nanotubes in the epoxy was studied by SEM.The SEM results suggest that of MWNTs had poor dispersion in the cured epoxy.However,the radii of carbon nanotubes in the epoxy were greater than those of pure nanotubes.These results show the existence of interaction between carbon nanotubes and epoxy." @default.
• W2356642998 created "2016-06-24" @default.
• W2356642998 creator A5047848717 @default.
• W2356642998 date "2008-01-01" @default.
• W2356642998 modified "2023-09-23" @default.
• W2356642998 title "THERMOANALYTICAL STUDIES OF HIGH PERFORMANCE EPOXY/CARBON NANOTUBE COMPOSITES" @default.
• W2356642998 hasPublicationYear "2008" @default.
• W2356642998 type Work @default.
• W2356642998 sameAs 2356642998 @default.
• W2356642998 citedByCount "2" @default.
• W2356642998 countsByYear W23566429982012 @default.
• W2356642998 crossrefType "journal-article" @default.
• W2356642998 hasAuthorship W2356642998A5047848717 @default.
• W2356642998 hasConcept C112950240 @default.
• W2356642998 hasConcept C121332964 @default.
• W2356642998 hasConcept C159985019 @default.
• W2356642998 hasConcept C166595027 @default.
• W2356642998 hasConcept C192562407 @default.
• W2356642998 hasConcept C26771246 @default.
• W2356642998 hasConcept C2779698641 @default.
• W2356642998 hasConcept C39519442 @default.
• W2356642998 hasConcept C513720949 @default.
• W2356642998 hasConcept C521977710 @default.
• W2356642998 hasConcept C7055690 @default.
• W2356642998 hasConcept C97355855 @default.
• W2356642998 hasConceptScore W2356642998C112950240 @default.
• W2356642998 hasConceptScore W2356642998C121332964 @default.
• W2356642998 hasConceptScore W2356642998C159985019 @default.
• W2356642998 hasConceptScore W2356642998C166595027 @default.
• W2356642998 hasConceptScore W2356642998C192562407 @default.
• W2356642998 hasConceptScore W2356642998C26771246 @default.
• W2356642998 hasConceptScore W2356642998C2779698641 @default.
• W2356642998 hasConceptScore W2356642998C39519442 @default.
• W2356642998 hasConceptScore W2356642998C513720949 @default.
• W2356642998 hasConceptScore W2356642998C521977710 @default.
• W2356642998 hasConceptScore W2356642998C7055690 @default.
• W2356642998 hasConceptScore W2356642998C97355855 @default.
• W2356642998 hasLocation W23566429981 @default.
• W2356642998 hasOpenAccess W2356642998 @default.
• W2356642998 hasPrimaryLocation W23566429981 @default.
• W2356642998 hasRelatedWork W1977168016 @default.
• W2356642998 hasRelatedWork W1983449663 @default.
• W2356642998 hasRelatedWork W1990374019 @default.
• W2356642998 hasRelatedWork W2020632840 @default.
• W2356642998 hasRelatedWork W2049790611 @default.
• W2356642998 hasRelatedWork W2058733516 @default.
• W2356642998 hasRelatedWork W2082274161 @default.
• W2356642998 hasRelatedWork W2138810765 @default.
• W2356642998 hasRelatedWork W2282921708 @default.
• W2356642998 hasRelatedWork W2352851333 @default.
• W2356642998 hasRelatedWork W2359848062 @default.
• W2356642998 hasRelatedWork W2366675580 @default.
• W2356642998 hasRelatedWork W2369589702 @default.
• W2356642998 hasRelatedWork W2372370298 @default.
• W2356642998 hasRelatedWork W2376078102 @default.
• W2356642998 hasRelatedWork W2383806318 @default.
• W2356642998 hasRelatedWork W2384719300 @default.
• W2356642998 hasRelatedWork W2392266617 @default.
• W2356642998 hasRelatedWork W2744931731 @default.
• W2356642998 hasRelatedWork W94683307 @default.
• W2356642998 isParatext "false" @default.
• W2356642998 isRetracted "false" @default.
• W2356642998 magId "2356642998" @default.
• W2356642998 workType "article" @default.