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Bisphenol-A epoxy resin reinforced and toughened by hyperbranched epoxy resin 被引量:3

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摘要 The study on toughening and reinforcing of bisphenol-A epoxy resin is one of important developmental direction in the field.This paper reports a one-pot synthesis of aromatic polyester hyperbranched epoxy resin HTDE-2,an effect of HTDE-2 content on the mechanical and thermal performance of the bisphenol-A(E51)/HTDE-2 hybrid resin in detail.Fourier transform infrared(FT-IR)spectrometer,scanning electronic microscopy(SEM),differential scanning calo ri metry(DSC),thermogravimetric analysis(TGA),dynamic mechanical thermal analysis(DMA)and molecular simula tion technology are used to study the structure of HTDE-2,performance and toughening and reinforcing mech-anism of the HTDE-2/E51 hybrid resin.It has been shown that the content of HTDE-2 has an important effect on the performance of the hybrid resin,and the performance of the HTDE-2/E51 blends has maximum with the increase in HTDE-2 content.The impact strength and fracture toughness of the hybrid resin with 9 wt-%HTDE-2 are almost 3.088 and 1.749 times of E51 performance respectively,furthermore,the tensile and flexural strength can also be enhanced about 20.7% and 14.2%,respectively.The glass transition tem-perature and thermal degradation temperature,however,are found to decrease to some extent.
出处 《Frontiers of Chemical Science and Engineering》 SCIE EI CSCD 2007年第4期349-354,共6页 化学科学与工程前沿(英文版)
基金 The authors gratefully acknowledge the finacial support of the National Natural Science Foundation of China(Grant No.50573021) the Natural Science Foundation of South-Central University for Nationalities,China(No.YZZ06012).
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