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[Adv. Mater. Interfaces] Highly Efficient Actuator of Graphene/Polydopamine Uniform Composite Thin Film Driven by Moisture Gradients
Bilayer materials with different swelling behavior are usually used as actuator, yet still suffer from limitations such as poor
interlayer adhesion during frequent bending, and the complex multistep fabrication process. Here, we present a new
strategy that a structure of reduced graphene oxide/polydopamine (RGO-PDA) uniform
composite thin film can serve as highly efficient actuator driven by moist...
http://www.polymer.cnt//ss/chentaogroup/publicationsshow_9068.html |
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From soft to strong elastomers: the role of additional crosslinkings in copolymer-grafted multiwalled carbon nanotube composite thermoplastic elastomers
Fabricating elastomeric materials is one of the most important branches in current nanotechnology and composite science. The macroscopic properties of the elastomers can be modified by adding fillers through changing the types and degrees of crosslinkings. In this study, copolymer-grafted multiwalled carbon nanotube composite thermoplastic elastomers (CTPEs) have been designed, in...
http://www.polymer.cnt//ss/wangzhongkai/publicationsshow_9062.html |
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Combination of Magnetic and Enhanced Mechanical Properties for Copolymer-Grafted Magnetite Composite Thermoplastic Elastomers
Composite thermoplastic elastomers (CTPEs) of magnetic copolymer-grafted nanoparticles (magnetite, Fe3O4) were synthesized and characterized to generate magnetic CTPEs, which combined the magnetic property of Fe3O4 nanoparticles and the thermoplastic elasticity of the grafted amorphous polymer matrix. Fe3O4 nanoparticles served as stiff, multiple physical cross-linking points...
http://www.polymer.cnt//ss/wangzhongkai/publicationsshow_9056.html |
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Enhanced in vitro mineralization and in vivo osteogenesis of composite scaffolds through controlled surface grafting of L-lactic acid oligomer on nano-hydroxyapatite.
Abstract
Nanocomposite of hydroxyapatite (HA) surface grafted with L-lactic acid oligomer (LAc oligomer) (op-HA) showed improved interface compatibility, mechanical property, and biocompatibility in our previous study. In this paper, composite scaffolds of op-HA with controlled grafting different amounts of LAc oligomer (1.1, 5.2, and 9.1 wt %) were fabricated and implan...
http://www.polymer.cnt//ss/pbzhang/publicationsshow_8924.html |
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Effects of layer stacking sequence on temperature response of multi-layer composite materials under dynamic conditions
Individual slabs of different types are used to form composites with either 2- or 3-layer of various stacking sequences so as to examine whether stacking order has any influence on the thermal response of the composite samples under dynamic conditions. The excess temperature profile θ(x, t) of a laminated composite slab is first derived by Green’s function (GF) method so that the adiabatic surfa...
http://www.polymer.cnt//ss/qulijun/publicationsshow_8895.html |
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Robust ultraviolet shielding and enhanced mechanical properties of graphene oxide/sodium alginate composite films
To enhance the mechanical performance and ultraviolet shielding property, graphene oxide was incorporated as the functional nanofiller into a sodium alginate matrix to form a composite film via a solvent-casting method. The as-obtained films were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and thermal gravimetric; their mechanical and ...
http://www.polymer.cnt//ss/qulijun/publicationsshow_8894.html |
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【Compos Sci Technol】Preparation, morphology, and mechanical properties of carbon nanotube anchored polymer nanofiber composite
Carbon nanotubes (CNTs) were anchored onto electrospun nanofibers under the assistance of ultrasonication. During ultrasonication, CNTs in the dispersion medium were driven to hit the nanofibers intensively and could be uniformly embedded onto nanofiber surface. The interaction between CNTs and dispersion medium played a vital role in determining CNT decoration. Good dispersion of CNTs in the disp...
http://www.polymer.cnt//ss/shihengchong/publicationsshow_8885.html |
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A comparative study on the in vivo degradation of poly(L-lactide) based composite implants for bone fracture fixation.
Abstract Composite of nano-hydroxyapatite (n-HAP) surface grafted with poly(L-lactide) (PLLA) (g-HAP) showed improved interface compatibility and mechanical property for bone fracture fixation. In this paper, in vivo degradation of n-HAP/PLLA and g-HAP/PLLA composite implants was investigated. The mechanical properties, molecular weight, thermal properties as well as crystallin...
http://www.polymer.cnt//ss/pbzhang/publicationsshow_8863.html |
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Assembly of an unbalanced charged polyampholyte onto Nafion to produce high-performance composite membranes
A novel SPES-NH2–GA-Nafions composite membrane with higher proton conductivity and lower methanol permeability was fabricated by covalent crosslinking layer-by-layer self-assembly of an unbalanced charged polyampholyte (SPES-NH2) and glutaraldehyde (GA) with controllable free sulfonic acid content.
http://www.polymer.cnt//ss/lishenghai/publicationsshow_8620.html |
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Polylactide Composite Foams Containing Carbon Nanotubes and Carbon Black: Synergistic Effect of Filler on Electrical Conductivity
Carbon, 2015, 95C, 380-387
ABSTRACT:
Two kinds of
carbonaceous particles, carbon black (CB) and carbon nanotubes (CNTs) were used
as the filler to prepare biodegradable polylactide (PLA) composites for the
study of synergistic effect of fillers on the electrical conductivity. The
results reveal that the CB particles and CNTs are loosely entangled with each
other in PLA matrix, inste...
http://www.polymer.cnt//ss/wudefeng/publicationsshow_8487.html |
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