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Effect of epoxy resin on the thermal behaviors and viscoelastic properties of poly(phenylene sulfide)
In this work, thermal behaviors and viscoelasticity of the PPS/epoxy resin mixtures prepared by melt mixing were studied, and the rheology was used as a tool to further explore the relation between chain structures and properties of the mixtures. The results show that the epoxy resin can promotes degradation and branching of the PPS during melt mixing due to its poor thermal stability. The formati...
http://www.polymer.cnt//ss/zhangming/publicationsshow_10600.html |
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28. Plant Oil-Derived Epoxy Polymers toward Sustainable Biobased Thermosets
Epoxy polymers (EPs) derived from soybean oil with varied chemical structures were synthesized. These polymers were then cured with anhydrides to yield soybean oil derived epoxy thermosets. The curing kinetic, thermal and mechanical properties were well characterized. Due to the high epoxide functionality per epoxy polymer chain, these thermosets exhibited tensile strength over an order of ...
http://www.polymer.cnt//ss/wangzhongkai/publicationsshow_10151.html |
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Toughening of Epoxy Resin System Using a Novel Dendritic Polysiloxane
Dendritic polymers have attracted increasing attention in the field of epoxy resin toughening. This paper is the first report of the use of a novel dendritic polysiloxane (DPSO) bearing high epoxide groups to modify the diglycidyl ether of bisphenol-A (DGEBA). The thermal properties, toughness and morphology of the cured epoxy resins were examined by DSC, TGA, impact testing and SEM. The chemica...
http://www.polymer.cnt//ss/masongqi/publicationsshow_9716.html |
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Studies on the Thermal Properties of Epoxy Resins Modified with Two Kinds of Silanes
Dimethyldiethoxysilane (DMDES) and diphenyldimethoxysilane (DPDMS)-containing epoxy resins were synthesized by dehydration polycondensation. The chemical structures were determined by FT-IR, 1H NMR, and 13C NMR. The cured samples, with 4, 4''''-diaminodiphenylmethane (DDM) as curing agent, were investigated by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), thermograv...
http://www.polymer.cnt//ss/masongqi/publicationsshow_9715.html |
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Mechanical and thermal properties and morphology of epoxy resins modified by a silicon compound
A silicon compound (GAPSO) was synthesized to modify the diglycidyl ether of bisphenol-A (DGEBA). The chemical structure of GAPSO was confirmed using FT-IR, 29Si NMR and GPC. The mechanical and thermal properties and morphologies of the cured epoxy resins were investigated by impact testing, tensile testing, differential scanning calorimetry and environmental scanning electron microscopy. The impa...
http://www.polymer.cnt//ss/masongqi/publicationsshow_9711.html |
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Synergistic flame retardancy effect of graphene nanosheets and traditional retardants on epoxy resin
Novel non-toxic halogen-free flame retardants are replacing traditional flame retardants in polymer and polymer matrix composite structures. In this study, graphene nanosheet (GNS) is investigatedin combination with traditional layered double hydroxide (LDH), layered rare-earth hydroxide (LRH), and phosphorus-based flame retardant (DOPO) to enhance the flame retardancy of epoxy resin. A synergisti...
http://www.polymer.cnt//ss/zpfang/publicationsshow_9691.html |
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(JMCC) Transparent anhydride-cured epoxy nanocomposites reinforced with polyaniline stabilized nanosilica
Transparent anhydride–bisphenol-A epoxy systems filled with pristine nanosilica were prepared and compared with the counterparts with the nanosilica coated with surface initiated polymerization (SIP) prepared phosphoric acid (H3PO4) doped polyaniline (PANI). The rheological investigation on the bisphenol-A epoxy nanosuspensions demonstrated that the surface coating increased...
http://www.polymer.cnt//ss/guhongbo/publicationsshow_9658.html |
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Polypyrrole Doped Epoxy Resin Nanocomposites with Enhanced Mechanical Properties and Reduced Flammability
For the liquid epoxy nanosuspensions with both fibril and spherical polypyrrole (PPy) nanostructures, a stronger PPy nanofibers/epoxy interaction and more temperature stable behavior with a lower flow activation energy of nanosuspensions with nanofibers (54.34 kJ mol?1) than that with nanospheres (71.15 kJ mol?1) were revealed by rheological studies. As well as the common enh...
http://www.polymer.cnt//ss/guhongbo/publicationsshow_9649.html |
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Reinforced magnetic epoxy nanocomposites with conductive polypyrrole nanocoating on nanomagnetite as a coupling agent
The new function of polypyrrole (PPy) to serve as a coupling agent has been demonstrated in preparing conductive epoxy resin nanocomposites with PPy coating on magnetite (f-Fe3O4) nanoparticles. The effects of magnetic nanofiller loading level on the rheological behavior, thermal stability, dynamic mechanical properties, mechanical properties, electrical conductivity, dielec...
http://www.polymer.cnt//ss/guhongbo/publicationsshow_9643.html |
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Study on Properties of Multi-walled Carbon Nanotubes/Epoxy Composites
Multi - walled carbon nanotubes (MWNTs) / epoxy compositeswere p repared by the combination of the physical and chemical methods. The relation between tensile strength and tensile modulus ofMWNTs/ epoxy composite and the addition amount ofMWNTswas investigated bymechanical tensile test. The tensile cross - section of the MWNTs/ epoxy composite was analyzed by SEM. T...
http://www.polymer.cnt//ss/guhongbo/publicationsshow_9596.html |
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