Shape memory effect and mechanical properties of carbon nanotube/shape memory polymer nanocomposites

Ni, Qing‐Qing; Zhang, Chunsheng; Fu, Yaqin; Dai, Guangze; Kimura, Teruo

doi:10.1016/j.compstruct.2006.08.017

Cited by 227 publications

(112 citation statements)

References 36 publications

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“…Gall et al [22] prepared and characterized SiC/epoxy composite and found that the recoverability of the composite was perfect for SiC weight fractions below 40%. Ni et al [23] prepared CNT/ polyesterpolyol SMP nanocomposite. They found that the recovery stress of CNT/polyesterpolyol with 3.3% weight fraction of CNTs will reach almost twice of that in bulk SMP.…”

Section: Introductionmentioning

confidence: 99%

Enhanced shape memory effect of poly(L-lactide-co-ε-caprolactone) biodegradable copolymer reinforced with functionalized MWCNTs

et al. 2012

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Data from comprehensive thermomechanical tests of poly(L-lactide-co-ε-caprolactone) biodegradable shape memory polymer (SMP) reinforced with pristine and functionalized multiwalled carbon nanotubes (MWCNTs) are reported. The SMP specimens tested up to 500% strain and between 25°C and 70°C temperatures. The incorporation of functionalized MWCNTs leads to the best overall reinforcing effect in tensile modulus, yield stress, tensile strength and elongation at failure. Thermo mechanical experiments resulted that the functionalized MWCNTs increased the glass transition range of composites and changed the melting point of composites slightly. The crystallinity of composites was increased with increment of MWCNTs in composites. The shape fixity and shape recovery of composites increased slightly, while the recovery stress increased 46%. It is found that the functionalized MWCNTs prepare an effective physical cross linking and switching segments in polymer composites.

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Section: Introductionmentioning

confidence: 99%

Enhanced shape memory effect of poly(L-lactide-co-ε-caprolactone) biodegradable copolymer reinforced with functionalized MWCNTs

et al. 2012

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“…This finding may be attributed to the addition of emulsifiers acting as a plasticizer in the preparation of the water-borne epoxy resin. However, the yield strength of the pristine epoxy resin is twice as higher as that of SM polyurethanes at 25 1C [11,12].…”

Section: Resultsmentioning

confidence: 95%

Novel vapor-grown carbon nanofiber/epoxy shape memory nanocomposites prepared via latex technology

Dong

Li³

et al. 2014

Materials Letters

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“…Ni 18 gives the relationships between composite Young's modulus of CNT/SMP and CNTs weight fracton of the vapor growth carbon fibers (VGCFs). With the increasing of VGCFs the Young's modulus increased rapidly in temperature 25°.…”

Section: Buckling Of Cnt/smp Composite Shellmentioning

confidence: 99%

Investigation of buckling behavior of carbon nanotube/shape memory polymer composite shell

2012

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Shape memory polymer(SMP) is a class of smart materials used in intelligent biomedical devices and industrial application as sensors or actuators for their ability to change shape under a predetermined stimulus. Carbon nanotube (CNT)/shape memory polymer (SMP) composites demonstrate good mechanical properties and shape memory effect. In this work, a model of CNT/SMP composite shell with a vaulted cross-section was established. This composite shell structure could further elevate the recovery stress of CNT/SMP composites. The folding properties of CNT/SMP composite shell structure were analyzed by finite element method., Furthermore, the energy conservation principle were used to study the influence of structural parameters on the buckling behavior of the shell. The results indicate that vaulted cross-section shell had unique mechanical properties. The structural parameters, such as the vaulted radius and the total length have a great impact on buckling moment of the shell. This shell structure is expected to achieve effective control of buckling and deploying process, relying on the special shape memory property of SMP and high elastic modulus CNTs. Moreover, it could also largely avoid the vibration problem during the deploying process.

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Shape memory effect and mechanical properties of carbon nanotube/shape memory polymer nanocomposites

Cited by 227 publications

References 36 publications

Enhanced shape memory effect of poly(L-lactide-co-ε-caprolactone) biodegradable copolymer reinforced with functionalized MWCNTs

Enhanced shape memory effect of poly(L-lactide-co-ε-caprolactone) biodegradable copolymer reinforced with functionalized MWCNTs

Novel vapor-grown carbon nanofiber/epoxy shape memory nanocomposites prepared via latex technology

Investigation of buckling behavior of carbon nanotube/shape memory polymer composite shell

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