PREPARATION AND PROPERTIES OF KH550-AL2O3/PI–EP NANOCOMPOSITE MATERIAL

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CHEN YUFEI; YUE WEI; BIAN ZONGZHEN; FAN YONG; LEI QINGQUAN

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Journal: Iranian Polymer Journal Year:2013 | Volume:22 | Issue:5 Page(s): 377-383

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Title

PREPARATION AND PROPERTIES OF KH550-AL2O3/PI–EP NANOCOMPOSITE MATERIAL

Author(s)

CHEN YUFEI | YUE WEI | BIAN ZONGZHEN | FAN YONG | LEI QINGQUAN

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Abstract

First, polyimide (PI)-epoxy resin (EP) polymer matrix was prepared from 3, 3′-diethyl-4, 4′-diamino diphenyl methane (DEDADPM), benzophenone tetracarboxylic acid dianhydride (BTDA) and epoxy resin (E-51), through thermal imide process. Then, the nanometer alumina (Al2O3) modified by the coupling agent, (3-aminopropyl)triethoxysilane (KH550), was doped into the PI-EP polymer matrix, using an in situ sol-gel method to prepare a series of KH550-Al2O3/PI-EP nanocomposite materials based on different KH550-Al2O3 contents. Fourier transform infrared spectroscopy (FTIR) indicated that in the presence of chemical reaction between poly (amic acid) and epoxy resin, an imide ring was formed, the thermal imidization reaction of the materials was completed and the KH550-Al2O3 had doped into the PI–EP polymer matrix. The heat-resistance, dielectric specification and mechanical properties of KH550-Al2O3/PI-EP nanocomposite materials were evaluated. The results showed that the decomposition temperatures were ranged between 438 and 450oC, dielectric constant and dielectric loss were in the range of 3.32-3.71 and 1.5 × 10-3-2.5 × 10-2, respectively, and they all increased with the increase of KH550-Al2O3 content (0-10 wt%), but the shear strength first increased and then decreased, attained its maximum value of 10.64 MPa at 8 wt%, which was about 119 % higher than that of undoped material. The adhesive forces of nanocomposite materials were all at higher level (one or two levels). Thus, the overall performance of KH550-Al2O3/PI-EP nanocomposites was the best when the doping amount of KH550-Al2O3 was 8 wt%. The properties such as high heat-resistance, dielectric properties and ready attachment of impregnating varnish to steel plate with very high strength fully met the necessary requirement.

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APA: Copy

CHEN, YUFEI, YUE, WEI, BIAN, ZONGZHEN, FAN, YONG, & LEI, QINGQUAN. (2013). PREPARATION AND PROPERTIES OF KH550-AL₂O₃/PI–EP NANOCOMPOSITE MATERIAL. IRANIAN POLYMER JOURNAL (ENGLISH), 22(5), 377-383. SID. https://sid.ir/paper/637057/en

Vancouver: Copy

CHEN YUFEI, YUE WEI, BIAN ZONGZHEN, FAN YONG, LEI QINGQUAN. PREPARATION AND PROPERTIES OF KH550-AL₂O₃/PI–EP NANOCOMPOSITE MATERIAL. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2013;22(5):377-383. Available from: https://sid.ir/paper/637057/en

IEEE: Copy

YUFEI CHEN, WEI YUE, ZONGZHEN BIAN, YONG FAN, and QINGQUAN LEI, “PREPARATION AND PROPERTIES OF KH550-AL₂O₃/PI–EP NANOCOMPOSITE MATERIAL,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 22, no. 5, pp. 377–383, 2013, [Online]. Available: https://sid.ir/paper/637057/en

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