IN-SITU POLYMERIZABLE THERMOPLASTIC EPOXY RESIN AND THE PROPERTIES OF ITS COMPOSITES

Abstract

Abstract: In this paper, a novel thermoplastic epoxy composite was prepared by impregnating a reinforcing material with a mixture of epoxy resin, bismaleimide resin and monoamine. By immersing the cured resin in an organic solvent, it was found that the resin was dissolved in the solvent, indicating that the resin matrix was not crosslinked. The curing system of the resin system was studied by differential scanning calorimetry (DSC) and infrared spectroscopy (FTIR). The heat resistance of the system was studied by DSC and synchronous thermal analyzer. The mechanical properties of the composites were studied by using an electronic universal material testing machine. The results showed that the best curing system was 70 ℃/1 h+120 ℃/2 h+150 ℃/5 h+170 ℃/2 h. The addition of bismaleimide resin could effectively improve the glass transition temperature of the system. When the content reached 10%, the T_g could reach 90 ℃ and the glass transition temperature was increased by 36% compared to the system in which no bismaleimide resin was added.

Key words: in-situ polymerizable, thermoplastic epoxy resin, bismaleimide resin, monoamine

CLC Number:

TB332

ZOU Jun-jie, WANG Jun, CHEN Xi. IN-SITU POLYMERIZABLE THERMOPLASTIC EPOXY RESIN AND THE PROPERTIES OF ITS COMPOSITES[J]. Fiber Reinforced Plastics/Composites, 2019, 0(4): 25-30.

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