Journal of Applied Polymer Science · 2011 · 64 citations · 17 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistryNanomaterialsPolymer MaterialsCarbon NanomaterialsCarbon NanotubesComposite MaterialsFiber-reinforced CompositesNanotubesSurface Functionalization Of NanomaterialsCarbon Nanotube CompositesCarbon Nanotube FunctionalizationCarbon Nanotube Reinforced CompositesFiber Surface ModificationFibersMulti-walled Carbon NanotubesPolymer Surface ModificationTensile Strength
Abstract A novel and efficient method was developed for surface‐modification of Kevlar fibers by multi‐wall carbon nanotubes (MWCNTs). Kevlar fibers were immersed in a solution mixed with Hexamethylene diisocyanate, 1,4‐diazabi‐cyclo [2,2,2] octane (DABCO), and toluene to introduce pendant amine groups before the COCl‐functionalized carbon nanotubes were chemically grafted onto the surface of modified fibers under ultrasonic condition. The characterization of resulting fiber involved in SEM, infrared spectroscopy, and tensile measurement. Results indicated over 20% of the fiber surface were coated by MWCNTs even after washing, which indicated a good adhesion. Furthermore, the mean value of tensile strength of Kevlar fiber was improved by 12% compared with original one. And the interlaminar shear strength (ILSS) of the fiber‐reinforced bismaleimides composite was increased by 30%. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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