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Mechanical properties of epoxy composites filled with silane-functionalized graphene oxide
In this work, the effects of as-produced GO and silane functionalized GO (silane-f-GO) loading and silane
functionalization on the mechanical properties of epoxy composites are investigated and compared. Such
silane functionalization containing epoxy ended-groups is found to effectively improve the compatibility
between the silane-f-GO and the epoxy matrix. Increased storage modulus,...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7777.html |
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Mechanical properties and fracture behaviors of epoxy composites with multi-scale rubber particles
In this work, we developed a strategy to balance the toughness and thermal resistance of epoxy composites by incorporating the multi-scale rubber particles. Two types of rubber i.e. the phase-separationformed submicron liquid rubber (LR) and preformed nano-scale powered rubber (PR) particles were chosen as tougheners. It was found that the combination of these multi-scale rubber particles not...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7115.html |
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The effect of graphene dispersion on the mechanical properties of graphene/epoxy composite
The effect of dispersion state of graphene on mechanical properties of graphene/epoxy composites was investigated. The graphene sheets were exfoliated from graphite oxide(GO) via thermal reduction (thermally reduced GO, RGO). Different dispersions of RGO sheets were prepared with and without ball mill mixing. It was found that the composites with highly dispersed RGO showed higher glass ...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7113.html |
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Fracture mechanisms of epoxy-based ternary composites filled with rigid-soft particles
Epoxy composites filled with different amounts of aggregate-free silica nanoparticles and phase-separated submicron rubber particles were fabricated to study the synergistic effect of multi-phase particles
on mechanical properties of the composites. Compared with binary composites with single-phase particles, the ternary composites with both rigid and soft particles offer a good balance in stiffne...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7103.html |
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A novel failure analysis of multi-walled carbon nanotubes in epoxy matrix
The failure analysis of reinforcing elements is of great significance to understand the structure-property relationship in polymer composites. Herein, we reported an improved methodology to ascertain and contrast the failure modes from one pair of homologous fracture surfaces of multi-walled carbon
nanotubes (MWCNTs)/epoxy samples at high-magnification using scanning electron microscopy....
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7101.html |
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Single carbon fiber fracture embedded in an epoxy matrix modified by nanoparticles
Fiber–matrix interface is a key which influences the mechanical performance of fiber reinforced polymer composites. Herein, silica nanoparticles were added to epoxy matrix to enhance the interfacial adhesion between fiber and matrix. Both a single fiber fragment test and a micro-Raman spectroscopy were utilized to evaluate the stress transfer efficiency of a single fiber based model com...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7100.html |
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Performance of epoxy filled with nano- and micro- sized magnesium hydroxide
Magnesium hydroxide (MDH) particles are often used as fillers to improve the flame retardancy of polymers. However, achieving the balance between the enhanced fire resistance and reduced mechanical properties, especially toughness, is still a challenge to the composite community. In this study, the effect of the particle size and silane surface modification of MDH particles on&...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7099.html |
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Fracture behaviours of in situ silica nanoparticle-filled epoxy at different temperatures
Fracture behaviours of nanosilica filled bisphenol-F epoxy resin were systematically investigated at ambient and higher temperatures (23 C and 80 C). Formed by a special sol–gel technique, the silica nanoparticles dispersed almost homogenously in the epoxy resin up to 15 vol.%. Stiffness, strength and toughness of epoxy are improved simultaneously. Moreover, enhancement o...
http://www.polymer.cnt//ss/tanglongcheng/publicationsshow_7097.html |
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194. Preparation and Characterization of Epoxy Nanocomposites Containing Surface-Modified Graphene Oxide.
A three-step grafting procedure has been used to graft the epoxy monomers (DER332) and the curing agents (diamino diphenyl methane (DDM), onto graphene oxide (GO) surface. The surface modification of GO has been performed by grafting of Jeffamine D-2000, followed with subsequent grafting of DER332 and DDM, respectively. Fourier transform spectroscopy and thermogravimetric analysis indicate success...
http://www.polymer.cnt//ss/liutianxi/publicationsshow_6871.html |
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The preparation and properties study of methoxy functionalized silicone modified epoxy resins
ABSTRACT: In this work, a series of siloxane epoxy resins (E3074) were synthesized through reaction of poly(methylphenylsiloxane) (DC-3074) with epoxy resin. The chemical structure of the resultant epoxy resin was determined by FTIR, GPC, and epoxy equivalent weight (EEW) tests. The mechanical measurements indicated that the tensile strength of E3074 was lower than that of neat epoxy&nbs...
http://www.polymer.cnt//ss/zouhuawei/publicationsshow_6472.html |
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