Cure behaviors and thermal stabilities of tetrafunctional epoxy resin toughened by polyamideimide

Park, Soo‐Jin; Heo, Gun‐Young; Jin, Fan‐Long

doi:10.1007/s13233-015-3051-z

Cited by 22 publications

(10 citation statements)

References 28 publications

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“…It assumes that the maximum reaction rate occurs at the peak temperature and determines the activation energy simply without beforehand precise knowledge of the reaction mechanism. 34 The Kissinger equation is expressed as eqn (6). According to this method, E a is obtained from the maximum reaction rate and calculated from the slope of the straight line which acquired by plotting of ln(b/T p 2 ) against 1/T p .…”

Section: Kinetics Theorymentioning

confidence: 99%

“…Currently, a number of nonlinear multifunctional epoxy resins play important roles in advanced epoxy resins and attract considerable interest among academia. [6][7][8] The multifunctional glycidyl amide type epoxy resin N,N,N 0 ,N 0 -tetraglycidyl-4,4 0 -diaminodiphenylmethane (TGDDM) is a successful example. Thanks to four nonlinear functional groups and high crosslink density of its cured products, TGDDM owns lower viscosity, better owability and processability, outstanding thermomechanical performance when compares with the conventional linear bisphenol-A type epoxy resins, and has been extensively used in application areas ranging from aircra and aerospace industries to electronic/electrical and other related high-tech elds.…”

Section: Introductionmentioning

confidence: 99%

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Reaction mechanism, cure behavior and properties of a multifunctional epoxy resin, TGDDM, with latent curing agent dicyandiamide

Feng

Zhou

2018

RSC Adv.

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Section: Kinetics Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reaction mechanism, cure behavior and properties of a multifunctional epoxy resin, TGDDM, with latent curing agent dicyandiamide

Feng

Zhou

2018

RSC Adv.

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“…Among various metal anti-corrosion methods, organic coating is one of the most economical, effective, and common methods [3]. Epoxy resin (EP) is widely used in organic anti-corrosive coatings due to its good corrosion resistance, strong adhesion to metal substrate, and low cost [4,5]. However, epoxy resin has a high brittle character, which usually results in cracks on the coating surface [6,7].…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide Decorated with Titanium Nanoparticles to Reinforce the Anti-Corrosion Performance of Epoxy Coating

Yuan

Nie

et al. 2020

Coatings

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Graphene oxide–titanium (GO-Ti) composite materials were fabricated using GO as a precursor and then anchoring nano titanium (Nano-Ti) particles on GO sheets with the help of a silane coupling agent. Then, the coating samples were prepared by dispersing GO, Nano-Ti particles, and GO-Ti in an epoxy resin at a low weight fraction of 1 wt %. The GO-Ti composites were investigated by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The dispersibility and anti-corrosion mechanism of the coatings were studied by sedimentation experiments, electrochemical impedance spectroscopy (EIS), SEM, and salt spray tests. The mechanical properties of the coatings were analyzed by friction and wear tests. The results showed that the Nano-Ti particles were successfully loaded on the GO surface by chemical bonds, which made GO-Ti composites exhibit better dispersibility in the epoxy than GO. Compared with Nano-Ti particles and GO, the GO-Ti composite exhibited significant advantages in improving the corrosion resistance of epoxy coatings at the same contents, which was attributed to the excellent dispersibility, inherent corrosion resistance, and sheet structure. Among the different proportions of composite materials, the GO-Ti (2:1) material exhibited the best dispersibility and corrosion resistance. In addition, the composite material also greatly improved the wear resistance of the coating.

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“…However, the addition of a thermoplastic resin typically increases the viscosity significantly during the resin mixing process, so that the molecular weight of the thermoplastic resin used has to be low . Furthermore, the amount of the added thermoplastic resin should be significant enough to obtain the desired toughness, which results in the problem of increasing viscosity and rising costs …”

Section: Introductionmentioning

confidence: 99%

Epoxy resins toughened with in situ azide–alkyne polymerized polysulfones

Ying

Yang

Moon

et al. 2017

J of Applied Polymer Sci

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To simultaneously improve the fracture toughness and heat resistance of a cured toughened epoxy resin along with a reduction in its viscosity during the mixing process, two novel polysulfone‐type polymers are synthesized via azide–alkyne polymerization for use as toughening agents. The epoxy resin toughened with these polymers by in situ azide–alkyne polymerization during the cure process, which shows excellent processibility and based on the significantly lower viscosity (61 and 62 cP) during epoxy mixing process than that of commonly commercial polyethersulfone (PES, 127,612 cP). The novel polysulfone‐type polymer toughened epoxy resin showed the advantage in excellent fracture toughness than the PES toughened epoxy. In addition, the glass transition temperature of the novel polysulfone‐type polymer toughened epoxy resin is similar to that of the neat one (∼230 °C) and does not decrease, which implies excellent heat resistance of the toughened epoxy. These phenomena can be attributed to the formation of semi‐interpenetrating polymer networks comprising the epoxy network and the linear polysulfone‐type polymers. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45790.

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Cure behaviors and thermal stabilities of tetrafunctional epoxy resin toughened by polyamideimide

Cited by 22 publications

References 28 publications

Reaction mechanism, cure behavior and properties of a multifunctional epoxy resin, TGDDM, with latent curing agent dicyandiamide

Reaction mechanism, cure behavior and properties of a multifunctional epoxy resin, TGDDM, with latent curing agent dicyandiamide

Graphene Oxide Decorated with Titanium Nanoparticles to Reinforce the Anti-Corrosion Performance of Epoxy Coating

Epoxy resins toughened with in situ azide–alkyne polymerized polysulfones

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