Preparation of elastomeric nanocomposites using nanocellulose and recycled alum sludge for flexible dielectric materials

被引:2
|
作者
Sun, Dongyang [1 ]
Saw, Bernard L. H. [2 ]
Onyianta, Amaka J. J. [3 ]
Wang, Bowen [4 ]
Wilson, Callum [1 ]
O'Rourke, Dominic [1 ]
See, Chan H. H. [1 ]
Popescu, Carmen-Mihaela [5 ]
Dorris, Mark [1 ]
Shyha, Islam [1 ]
Lu, Zhilun [1 ]
机构
[1] Edinburgh Napier Univ, Sch Engn & Built Environm, Edinburgh, Scotland
[2] Univ Tunku Abdul Rahman Kajang, Lee Kong Chian Fac Engn & Sci, Kajang, Malaysia
[3] Univ Bristol, Bristol Composites Inst, Sch Civil Aerosp & Mech Engn, Bristol BS8 1TR, England
[4] Queen Mary Univ London, Sch Engn & Mat Sci, London, England
[5] Romanian Acad, Petru Poni Inst Macromol Chem, Iasi, Romania
关键词
Nanocellulose; biodegradable; sustainable; alum sludge; nanocomposite; flexible; dielectric; WATER HYACINTH; CELLULOSE;
D O I
10.1142/S2010135X22420085
中图分类号
O59 [应用物理学];
学科分类号
摘要
Flexible dielectric materials with environmental-friendly, low-cost and high-energy density characteristics are in increasing demand as the world steps into the new Industrial 4.0 era. In this work, an elastomeric nanocomposite was developed by incorporating two components: cellulose nanofibrils (CNFs) and recycled alum sludge, as the reinforcement phase and to improve the dielectric properties, in a bio-elastomer matrix. CNF and alum sludge were produced by processing waste materials that would otherwise be disposed to landfills. A biodegradable elastomer polydimethylsiloxane was used as the matrix and the nanocomposites were processed by casting the materials in Petri dishes. Nanocellulose extraction and heat treatment of alum sludge were conducted and characterized using various techniques including scanning electron microscopy (SEM), thermogravimetric analysis/derivative thermogravimetric (TGA/DTG) and X-ray diffraction (XRD) analysis. When preparing the nanocomposite samples, various amount of alum sludge was added to examine their impact on the mechanical, thermal and electrical properties. Results have shown that it could be a sustainable practice of reusing such wastes in preparing flexible, lightweight and miniature dielectric materials that can be used for energy storage applications.
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页数:9
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