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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis, Characterization, and Properties of Low Viscosity Tetra-functional Epoxy Resin N,N,N',N'- tetraglycidyl-3,3'-diethyl-4,4'-diaminodiphenylmethane
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Synthesis, Characterization, and Properties of Low Viscosity Tetra-functional Epoxy Resin N,N,N',N'- tetraglycidyl-3,3'-diethyl-4,4'-diaminodiphenylmethane

机译：低粘度四官能环氧树脂N，N，N'，N'-四缩水甘油基-3,3'-二乙基-4,4'-二氨基二苯甲烷的合成，表征和性能

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摘要

Tetra-functional epoxy resin N,N,N',N'-tetraglycidyl-3,3'-diethyl-4,4'-diaminodiphenylmethane (TGDEDDM) was synthesized and characterized. The viscosity of TGDEDDM at 25℃ was 7.2 Pa?s, much lower than that of N,N,N',N'-tetraglycidyl-4,4'-diaminodiphenylmethane (TGDDM). DSC analysis revealed that the reactivity of TGDEDDM with curing agent 4,4'-diamino diphenylsulfone (DDS) was significantly lower than that of TGDDM. Owing to its lower viscosity and reactivity, TGDEDDM/DDS exhibited a much wider processing temperature window compared to TGDDM/DDS. Trifluoroborane ethylamine complex (BF_3-MEA) was used to promote the curing of TGDEDDM/DDS to achieve a full cure, and the thermal and mechanical properties of the cured TGDEDDM were investigated and compared with those of the cured TGDDM. It transpired that, due to the introduction of ethyl groups, the heat resistance and flexural strength were reduced, while the modulus was enhanced.
机译：合成并表征了四官能环氧树脂N，N，N'，N'-四缩水甘油基-3,3'-二乙基-4,4'-二氨基二苯甲烷（TGDEDDM）。 TGDEDDM在25℃时的粘度为7.2 Pa？s，远低于N，N，N'，N'-四缩水甘油基-4,4'-二氨基二苯甲烷（TGDDM）的粘度。 DSC分析显示，TGDEDDM与固化剂4,4'-二氨基二苯砜（DDS）的反应性显着低于TGDDM。由于其较低的粘度和反应性，TGDEDDM / DDS与TGDDM / DDS相比，具有更大的加工温度范围。使用三氟硼烷乙胺络合物（BF_3-MEA）促进TGDEDDM / DDS的固化以实现完全固化，并研究了固化的TGDEDDM的热和机械性能，并将其与固化的TGDDMDM进行了比较。结果表明，由于引入了乙基，降低了耐热性和抗弯强度，同时提高了模量。

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