Journal ArticleDOI
Viscoelastic and thermal properties of polysulfide modified epoxy resin: The effect of modifier molecular weight
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TLDR
In this paper, the effect of modifier molecular weight on impact resistance, thermal expansion coefficient, storage and loss modulus, decomposition temperature and adhesion properties of toughened epoxy was investigated.Abstract:
In this research two grades of polysulfide resin with low and high molecular weight (respectively G4 and G112) as reactive modifier was used to toughen epoxy resin. The effect of modifier molecular weight on impact resistance, thermal expansion coefficient, storage and loss modulus, decomposition temperature and adhesion properties of toughened epoxy was investigated. The impact strength and the thermal expansion coefficient (CTE) of epoxy resin was increased with increasing polysulfide but the G112 modified epoxy samples showed higher CTE values and impact resistance than those of modified with G4. Comparing of the same weight percent inclusion of G4 and G112 effect on decomposition temperature show that G4 modified epoxy resin has lower decomposition temperature than the G112 modified epoxy resin. Also addition of G112 up to 10 weight percent leads to higher bond strength with aluminum sheets. According to the DMTA graphs, glass transition temperature (Tg) of the modified epoxy was decreased with increasing polysulfide weight percent in composition. At the same time G4 modified epoxies have lower Tg and storage modulus than that of modified with G112.read more
Citations
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Journal ArticleDOI
Polysulfide Polymers: Synthesis, Blending, Nanocomposites, and Applications
TL;DR: In this paper, the authors review methods of synthesis, properties, and applications of polysulfide polymers, and also briefly discuss poly sulfide-based nanocomposites and blends.
Journal ArticleDOI
Epoxy/graphene oxide/liquid polysulfide ternary nano-composites: rheological, thermal and mechanical, characterization
TL;DR: In this article, the effect of the weight fraction of liquid polysulfide (PSf) and graphene oxide (GO) on the glass transition temperature (Tg), thermal stability, rheological, and mechanical properties of epoxy/GO/PSf ternary nano-composites was investigated.
Journal ArticleDOI
Improved mechanical properties of ATBN-toughened epoxy networks by controlling the phase separation scale
TL;DR: Amine-terminated butadiene acrylonitrile (ATBN) rubber-toughened epoxy networks with different phase separation scale were formulated by adjusting acrylinitrile content in ATBN, and the effect of phase separation on stress-strain behavior, impact strength, dynamic mechanical thermal properties and thermo-gravimetric performance of the toughened networks were studied in detail as discussed by the authors.
Journal ArticleDOI
Effect of molecular weight of liquid polysulfide on water and organic solvent resistances of waterborne polyurethane/polysulfide copolymer
TL;DR: In this paper, polyester waterborne polysulfide-based polyurethane (WSPU) films were successfully synthesized from liquid poly sulfide(PSF), poly(butylene adipate) (PBA) and isophorone diisocyanate (IPDI) using Fourier transform infrared (FTIR) spectroscopy, tensile test and Thermogravimetric analyzer (TGA).
Journal ArticleDOI
Corrosion behavior of epoxy/polysulfide coatings incorporated with nano-CeO2 particles on low carbon steel substrate
TL;DR: In this paper , the corrosion resistance properties of epoxy coatings applied to St37 carbon steel were modified with polysulfide and nano cerium oxide, which led to a notable increase in toughness and corrosion resistance.
References
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Journal ArticleDOI
Thermal and mechanical properties of tetrafunctional epoxy resin toughened with epoxidized soybean oil
TL;DR: In this paper, a potential epoxy resin, i.e., epoxidized soybean oil (ESO), was synthesized to toughen the tetrafunctional epoxy resins.
Journal ArticleDOI
Thermal and mechanical properties of epoxy acrylate/methacrylates uv cured coatings
TL;DR: In this article, epoxy acrylates/methacryls were prepared by reacting epoxy novolac or bisphenol-A epoxy resin with acrylic acid or methacrylic acid.
Journal ArticleDOI
Rubber Toughened Epoxy
Debdatta Ratna,Ajit K. Banthia +1 more
TL;DR: In this paper, the development of various functionalized liquid rubber-based toughening agents and core-shell particles are discussed critically in a review of recent advances in the development.
Journal ArticleDOI
Thermal decomposition kinetics of an epoxy resin with rubber-modified curing agent
Jingu Lee,M. J. Shim,S. W. Kim +2 more
TL;DR: In this article, the thermal decomposition kinetics of diglycidyl ether of bisphenol A (DGEBA)/4,4′-methylene dianiline (MDA) system with rubber-modified MDA was studied by the methods of Ozawa, Kissinger, and Friedman, and the kinetic parameters were compared.
Journal ArticleDOI
Study of epoxy toughened by in situ formed rubber nanoparticles
TL;DR: The effect of rubber nanoparticles on mechanical properties and fracture toughness was investigated in this article, where they were in situ synthesized in epoxy taking advantage of the reaction of an oligomer diamine with epoxy.
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