Toughness and Thermal Properties of a Dimer Acid Modified Tetrafunctional Epoxy Resin

Ming Ming Yu; Bin Feng; Min Yang; Li Qi Liu; Hong Li; Mu Su Ren; Jin Liang Sun; Jia Bao Zhang

doi:10.4028/www.scientific.net/AMM.764-765.107

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 764-765Toughness and Thermal Properties of a Dimer Acid...

Toughness and Thermal Properties of a Dimer Acid Modified Tetrafunctional Epoxy Resin

Abstract:

In order to improve the toughness of the cured aromatic tetrafunctional epoxy resins in the premise of influencing the thermal properties as little as possible, the aromatic tetrafunctional epoxy named N,N,N’,N’-tetraglycidyl-4,4’-diaminodiphenyl ether (TGDDE) was modified by a dimer carboxylic acid (DFA), and then the epoxies were cured with methyl nadic anhydride (MNA). In the present work, the toughness was characterized with the impact resistance tested by pendulum impact testing. Besides, the thermal properties of the cured epoxy resin were investigated with the thermo-gravimetric analysis (TGA) and dynamic mechanical analysis (DMA). The impact testing results indicated that the toughness of the cured resins could be improved after the modification and increased with the increasing content of DFA. The thermal analysis showed that the thermal properties of the cured resins were not influenced obviously since the thermal stabilities of the products could be improved and the glass transition temperature of them were not influenced obviously when the tetrafunctional epoxy modified with appropriate content of DFA.

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Periodical:

Applied Mechanics and Materials (Volumes 764-765)

Pages:

107-110

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.764-765.107

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Online since:

May 2015

Authors:

Ming Ming Yu, Bin Feng, Min Yang, Li Qi Liu*, Hong Li, Mu Su Ren, Jin Liang Sun, Jia Bao Zhang

Keywords:

Tetrafunctional Epoxy Resin, Thermal Properties, Toughness

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* - Corresponding Author

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