Bismaleimide/rice husk silica reinforced composites Synthesis and thermal degradation studies

Dharmaraj Rajamani; Rajendran Surender; Arunjunairaj MahendranShanmugam MuthusubramanianChinnaswamy Thangavel Vijayakumar

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Bismaleimide/rice husk silica reinforced composites Synthesis and thermal degradation studies

机译：Bismaleimide/rice husk silica reinforced composites Synthesis and thermal degradation studies

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Silica derived from the renewable resource rice husk is modified using stearic acid and N-4-(chlorocarbonyl) phenylmaleimide. These materials are used as fillers in the bismaleimide, 4,4'-bismaleimidodiphenylmethane (BMIM), and thermally cured. The thermogravimetric (TG) curves for polyBMIM/silica composites showed no pronounced changes compared to the TG curve for the pure polyBMIM. Kissinger–Akahira–Sunose, Flynn–Wall–Ozawa, and Friedman methods are used to compute the activation energy (E_a) for degradation. Silica and surfacemodified silica using stearic acid dispersed by ultrasonication increase the activation energy for degradation and show considerable influence on the thermal stability of cured BMIM. The long alkyl chain present in the stearic acid modified silica and the bulky spacer present in the chemically modified silica definitely alter the degradation process of cured BMIM. The SEM studies indicated uniform dispersion of the silica particles in the polyBMIM.

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来源
《Journal of thermal analysis and calorimetry》 |2013年第2期|883-893|共11页
作者
Dharmaraj Rajamani; Rajendran Surender; Arunjunairaj MahendranShanmugam MuthusubramanianChinnaswamy Thangavel Vijayakumar;
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作者单位

Department of Chemistry, The Standard Fireworks Rajaratnam College for Women, Sivakasi 626123, India;

Department of Polymer Technology, Kamaraj College of Engineering and Technology, S.P.G.C. Nagar, K. Vellakulam Post, Virudhunagar 625701, India;

Wood Carinthaian Competence Centre, Kompetenzzentrum Holz GmbH, Klagenfurter strasse 87-89, 9300 st. Veit an der Glan, AustriaDepartment of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, India;

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原文格式 PDF
正文语种英语
中图分类物理化学（理论化学）、化学物理学;
关键词
Bismaleimide; Rice husk; Silica; Thermogravimetry; Kinetics; SEM;

Bismaleimide/rice husk silica reinforced composites Synthesis and thermal degradation studies

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