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گواهی نمایه سازی مقاله Nanocomposite Aerogel based on Silica Inorganic Polymer: Preparation and Properties

عنوان مقاله: Nanocomposite Aerogel based on Silica Inorganic Polymer: Preparation and Properties
شناسه (COI) مقاله: ISPST10_767
منتشر شده در دهمین سمینار بین المللی علوم و تکنولوژی پلیمر در سال ۱۳۹۱
مشخصات نویسندگان مقاله:

F Pashaei Soorbaghi - Polymer Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14115-114, Tehran, Islamic Republic of Iran.
H Gilani - Nanomaterial Group, Material Engineering Department, Faculty of Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, Islamic Republic of Iran.
M Kokabi - Polymer Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14115-114, Tehran, Islamic Republic of Iran.
Ahmad Reza Bahramian - Polymer Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14115-114, Tehran, Islamic Republic of Iran.

خلاصه مقاله:
Aerogels are advanced materials consist of more than 96% air. The remained four percent is could be matrix of organic, inorganic or organic-inorganic materials[1]. Aerogels areprepared using sol-gel polymerization followed by a proper drying method such as supercritical drying [2]. Silica aerogelsare materials with unusual properties such as high specific surface area (500–1200m2/g), high porosity (80–99.8%), low density (0.003 g/cm3), high thermal insulation value (0.005W/mK), ultra low dielectric constant (k = 1.0–2.0) and low index of refraction (1.05) [3]. In this work silica aerogelprepared via polymerization of tetraethoxy silane(TEOS) in presence of basic catalyst, followed by supercritical drying.Kaolinite nanofiller was added in polymerization step. The actual nanofiller content was 5wt% with respect to silica content. X-ray diffraction (XRD) was used to characterize themorphology of produced nanocomposite. The Scanning electron microscopy (SEM) was used to analyze the morphology of neat and nanocomposite aerogels. The mechanical properties aerogels such as Young’s modulus and compressive strength were evaluated using compression testing method

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