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1、3812011Mv(1S)JournalofBeijingUniversity ofChem icalTechnology (NaturalScience)Vo.l 38, No. 12011,59:,R=,I./,5,!?Z J., 2007,35( 8): 1- 6.LiuM X, GuoB C, JiaD M. Progress in preparation andstudy of property of epoxy resin/carbon nano-meter tubenano-meter composite J. China Plastics Industry,2007, 35(
2、8): 1- 6. ( in Chinese) 11 Tsang S C, Chen Y K, Harris P J F, et a.l A simplechem icalmethod of opening and filling carbon nanotubes J. Nature, 1994, 372(6502): 159- 162. 12 LagoR M, Tsang S C, Lu K L, et a.l Filling carbonnanotubes with small palladium metal crystallites: Theeffect of surface acid
3、groups J. Chem ical Communica-#66#v(1S) 2011Mtions, 1995, 13: 1355- 1356. 13 Zhao B, HuH, N iyogiS, et a.l Chromatographicpurif-ication and properties of soluble single-walled carbonnanotubes J. Journal of Americal Chem ical Society,2001, 123( 47): 11673- 11677. 14 V iswanathanH, ChakrapaniN, Yang H
4、, et a.l Single-step in situ synthesis of polymer-grafted single-wall nano-tube composites J. JournalofAmericalChem icalSocie-ty, 2003, 125( 31): 9258- 9259. 15 Liu Y, Yao Z, Adronov A. Functionalization of single-walled carbon nanotubes with wel-ldefined polymers byradical coupling J. M acromolecul
5、es, 2005, 38( 4):1172- 1179.Fabrication andmechanical properties of carbon nanotubesreinforced epoxy resinmatrix compositesZHANG Hao CA IPeiZhi ZHAO DongLin SHENG ZengM in( StateKey Laboratory ofChemicalResource Engineering, BeijingUniversity ofChem icalTechnology, Beijing 100029, China)Abstract: Mu
6、ltiwalled carbon nanotubes (MWNTs) /epoxy nanocompositeswere fabricated by using ultrasonicationand the castmolding method. MWNTsweremodified by nitric acid and well dispersed in an epoxymatrix. Theeffects ofMWNTs addition and surfacemodification on themechanicalproperties and fracturemorphologies o
7、f com-positeswere investigated. The reinforcementmechanisms of theMWNT /epoxy composites are discussed accordingto the fracturemorphologies of composites. The results indicated that the tensile and flexuralstrength andmodulusof theMWNT/epoxy composites increased firstly and then decreased with the i
8、ncreasing ofMWNTs addition, andwhen the contentofMWCNTs loading reached 015w %t , the tensile strength, flexuralstrength andmodulus reachedthe highestvalueof6918MPa, 13619MPa and 3172GPa, respectively, which were increased by 3319%, 2913%and 418%, respectively. When the content ofMWCNTs loading reached 115%, the tensile modulus of theMWNT /epoxy composites reached the highestvalue of 205015MPa, which was increased by713%.Key words: carbon nanotube; epoxy resin; composites; mechanicalproperties#67#1 f :,59!#?
