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Studies on curing kinetics of a novel combined liquid crystalline epoxy containing tetramethylbiphenyl and aromatic ester-type mesogenic group with diaminodiphenylsulfone
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http://www.polymer.cnt//ss/caizhiqi/publicationsshow_5456.html |
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Effect of functionalization of multi-walled carbon nanotube on the curing behavior and mechanical property of multi-walled carbon nanotube/epoxy composites
In this work, multi-walled carbon nanotubes (MWCNTs) were functionalized to fabricate MWCNT/epoxy composites by incorporating MWCNTs into an epoxy. Cure behavior of composites was investigated by differential scanning calorimetry. Thermo-mechanical behavior of the composite was then evaluated by dynamic mechanical analysis. Tensile strength, elastic modulus and maximum elongation were obtained b...
http://www.polymer.cnt//ss/genghongzhang/publicationsshow_4515.html |
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Effects of Rare Earth Metal Triflates on Cationic Curing of Epoxy Resin/Polyamide Systems
In this article, a new class of cationic initiators, lanthanide triflates, has been studied in the cationic curing of epoxy resin, diglycidyl ether biphenyl A (DGEBA), and polyamide (PA) mixtures. The reaction mechanism of the cationic curing of DGEBA/PA mixtures has been studied. The kinetics of this process has been evaluated by the Differential Scanning Calorimetry (DSC). The effect of the time...
http://www.polymer.cnt//ss/caizhiqi/publicationsshow_4162.html |
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Polymerization-induced phase separation in polyethersulfone modified epoxy resin systems: effect of curing reaction mechanism.
Polyethersulfone (PES)-modified epoxy systems with stepwise reaction were studied throughout the entire curing process by using optical microscopes, time-resolved light scattering (TRLS), and a rheolometry instrument compared with that of chainwise polymerization. The results suggested that the phase separation process is mainly controlled by the diffusion of epoxy oligomers for stepwise mechanism...
http://www.polymer.cnt//ss/yuyingfeng/publicationsshow_1818.html |
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Rheological study on structural transition in polyethersulfone-modified bismaleimide resin during isothermal curing
The structural transition in the polyethersulfone (PES)-modified bismaleimide resin, 4,4'-bismaleimidodiphenylmethane (BDM), during isothermal curing was studied by using rheological technique, different scanning calorimetry (DSC), and time resolved light scattering (TRLS). Comparing with the cure of neat bismaleimide, two separate tan 8 crossover points were observed because of the phase separati...
http://www.polymer.cnt//ss/yuyingfeng/publicationsshow_1808.html |
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Studies on the phase separation of poly(ether imide) modified tetrafunctional epoxy resin - The effect of curing agent ratio.
The effect of the amount of curing agent on phenyl-terminated polyetherimide modified TGDDM systems has been studied by using DSC, time resolution light scattering (TRLS) and SEM, Increase of the amount of curing agent will enhance the rates of curing reaction and phase separation, thus change apparently the phase structure of TGDDM/P-PEI (20 phr) blends and the shearing strength. An autocatalytic...
http://www.polymer.cnt//ss/yuyingfeng/publicationsshow_1787.html |
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Studies on the phase separation of polyetherimide modified tetrafunctional epoxy resin. III. Morphology development of the blend during curing.
Using scanning electron microscope (SEM), differential scanning calorimetry (DSC) and time-resolved light scattering (TRLS) methods, the morphology development of novel polyetherimide modified tetreglycidyl-4,4'-diaminodiphenylmethane (TGDDM) epoxy resin was investigated. The phase separation took place early in the blend and morphology was fixed in the first 10 minutes of curing. Then, the diffus...
http://www.polymer.cnt//ss/yuyingfeng/publicationsshow_1785.html |
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Studies on the phase separation of polyetherimide-modified epoxy resin, 3 - Part 1 - Morphology development of the blend during curing.
Scanning electron microscopy (SEM) was used to trace the development of the morphology of polyetherimide-modified epoxy resins. On the basis of SERI results and the change of the glass transition temperature of the blends during curing, different phase formation processes were found and discussed. Regarding the low molecular weight polyetherimide modified system, the phase separation follows a spi...
http://www.polymer.cnt//ss/yuyingfeng/publicationsshow_1784.html |
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Polymer/ZnO hybrid materials for near-UV sensors with wavelength selective response
Ultraviolet (UV) sensors with high spectrum selectivity are usually necessary in various areas. Though, kinds of spectrum selective sensors based on inorganic materials including GaN, ZnO were reported, the processing of those inorganic&nbs...
http://www.polymer.cn/research/dis_info16610 |
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UV study on reaction of conjugated double bonds in tung oil based polyurethanes
Polyurethane (PU) is one of the most widely investigated types of copolymers composed of alternating soft and hard segments. Plant oil based PU is a new research direction especially in recent years. Tung oil (TO) is the...
http://www.polymer.cn/research/dis_info16516 |
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