Epoxy-imide resins from N-(4-carboxyphenyl)trimellitimide: effect of imide and aromatic content on adhesive and thermal properties

Abraham, Ginu; Packirisamy, S.; Bhagawan, S. S.; Balasubramanian, G.; Ramaswamy, R.

doi:10.1007/s10853-006-0547-0

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…Fillers such as fibers (glass, carbon, and aramid) or particles such as ceramic powders usually have dimensions in the range of 1–10 or even more micrometers. They favorably harden the material and may also increase the strength under certain load conditions, but on the other hand yields unfavorable effects on important properties like the material's impact resistance . An innovative approach aiming to overcome this basic problem is related to the exploitation of nanotechnology and the employment of fillers in the nanometer scale.…”

Section: Introductionmentioning

confidence: 99%

“…The blending of epoxy with nanofillers enhances the fracture toughness. Thus epoxy nanocomposites show superior stiffness, specific strength, and low cure shrinkage . Nanocomposites embrace more than one solid phase, where at least one phase dimension is in the nanometer range, whether it is amorphous, semi‐crystalline or crystalline, should be in the range of 1–20 nm .…”

Section: Introductionmentioning

confidence: 99%

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Innovative materials of this era for toughening the epoxy matrix: A review

2018

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This review aims to bring to light the potential efficiency of various materials as toughening agents for epoxy thermosets. The area of epoxy toughening has fascinated material scientists since toughened epoxies are employed as the appropriate candidates in a wide arena of applications. Based on the structure–property relationships, the traditional chemistry approaches have been tried so far to toughen the epoxy matrix. With the advent of the era of nanotechnology, the field of epoxy toughening has also gained momentum through the utilization of various types of modified and unmodified nanofillers in the epoxy matrix. In fact many new materials have replaced the conventional agents in the field of epoxy toughening. We are giving a comprehensive review which hints the various mechanisms of toughening as well as the novel materials used in the present scenario as potential toughening agents in the epoxy matrix with special reference to rubber, block copolymers, and nanofillers. POLYM. COMPOS., 39:E1959–E1986, 2018. © 2018 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Innovative materials of this era for toughening the epoxy matrix: A review

2018

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“…Some of the papers in this field analyze the thermal behavior of polymers or polymer composites . From our best information, it follows that the number of works of this type referring to polymer composites is much lower …”

Section: Introductionmentioning

confidence: 99%

Thermal and electrical behavior of hybrid thermosets based on epoxy and maleimide resins cured with p‐aminobenzoic acid

Mustaţă¹,

Tudorachi²,

Asăndulesa³

et al. 2019

Int J of Chemical Kinetics

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Two thermoset systems based on maleimides and diglycidyl ether of bisphenol A (DGEBA) cured with p‐aminobenzoic acid were characterized in terms of thermal and electrical behavior. Thermal characterization has been undertaken by means of thermogravimetric analysis in nitrogen atmosphere up to 600°C using simultaneous thermogravimetric/Fourier transform infrared/mass spectrometry (TG/FT‐IR/MS) analysis. In the first stage of thermal degradation, the global kinetic parameters [activation energy (Ea) and preexponential factor (log A1 (s−1))] were calculated using the isoconversional method of Friedman. The energies variation as well as the shape of the differential thermal analysis curves suggests that the thermal decomposition process occurred in multiple stages. The evolved gases analysis was conducted by simultaneous TG/FT‐IR/MS coupled techniques. Dielectric relaxation spectroscopy characterization was also made.

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“…Similarly, imide‐diacids, new compounds having concurrently rigid imide structure and reactive carboxyl acid, had shown a promising application in improving PU's thermal stability15 and modifying epoxy resin to improve thermal properties, mechanical properties 16–24. However, some of the drawbacks to the employment of these high performance compounds, especially diimide‐diacids, were their high melting temperatures and lower solubility in common solvent, correspondingly, an elevated reaction temperature was always needed, such as in addition reaction between carboxylic of diimide‐diacids and epoxy groups of epoxy resins including DGEBA and EPN.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of poly(urethane‐imide) diacid/epoxy composites cured with an aziridine system

Liu

Zhang

Lin

et al. 2009

J of Applied Polymer Sci

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A poly(urethane-imide) diacid (PUI), a diimide-diacid with a soft structure unit, was directly synthesized from the reaction of trimellitic anhydride and isocyanate terminated polyurethane prepolymer. FT-IR and NMR were used to characterize its chemical structure. Then PUI was blended with two types of epoxy resins with different chemical structures, diglycidyl ether of bisphenol A (DGEBA) and novolac epoxy (EPN). After curing the blends with polyfunctional aziridine CX-100, novel polyurethane/epoxy composites were obtained as transparent yellowish films. Thermal, chemical, and morphological properties of the cured composites were investigated using thermal analysis, SEM, TEM, chemical resistance, respectively. All experimental data indicated that epoxy modified PUI composites possessed higher thermal stability than that unmodified PUI, and that modified PUI had much better chemical resistance.

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Epoxy-imide resins from N-(4-carboxyphenyl)trimellitimide: effect of imide and aromatic content on adhesive and thermal properties

Cited by 7 publications

References 14 publications

Innovative materials of this era for toughening the epoxy matrix: A review

Innovative materials of this era for toughening the epoxy matrix: A review

Thermal and electrical behavior of hybrid thermosets based on epoxy and maleimide resins cured with p‐aminobenzoic acid

Synthesis and properties of poly(urethane‐imide) diacid/epoxy composites cured with an aziridine system

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