Nanostructured Fly Ash as Reinforcement in a Plastomer-Based Composite: A New Strategy in Value Addition to Thermal Power Station Fly Ash

Class-F fly ash (FA) from a coal-fired thermal power station was subjected to high energy ball milling-induced mechanochemical activation aided by a surfactant. Subsequently, ethylene-octene copolymer/mechanochemically activated FA (EOC/MCA-FA) composites were prepared by solution casting. The surfa...

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Bibliographic Details
Published in:SILICON 2016-01, Vol.8 (1), p.159-173
Main Authors: Patil, Akshata G., Mahendran, Arunjunairaj, Anandhan, S.
Format: Article
Language:English
Subjects:
Ball milling
Chemistry
Chemistry and Materials Science
Coal-fired power plants
Composite materials
Contact angle
Copolymers
Crystallites
Environmental Chemistry
Ethylene
Fillers
Fly ash
Inorganic Chemistry
Lasers
Lattice strain
Materials Science
Mechanical properties
Octenes
Optical Devices
Optics
Original Paper
Photonics
Polymer Sciences
Polymers
Thermal power plants
Thermoelectricity
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Summary:Class-F fly ash (FA) from a coal-fired thermal power station was subjected to high energy ball milling-induced mechanochemical activation aided by a surfactant. Subsequently, ethylene-octene copolymer/mechanochemically activated FA (EOC/MCA-FA) composites were prepared by solution casting. The surface modification of FA was confirmed from contact angle measurements and FTIR spectroscopy, which accounts for a good interaction between MCA-FA and the polymer matrix. X-ray diffraction reveals that the crystallite size of quartz phase present in FA got reduced, while the relative lattice strain on it increased during milling. Morphological studies revealed that interfacial adhesion between the polymer and MCA-FA is good and this accounts for the improvement in mechanical properties of the composites even at the minimum filler loading. Flame retardance of the matrix polymer is improved by the addition of either fresh FA or MCA-FA. The results imply that FA is a valuable reinforcing filler for ethylene-octene copolymer and its mechanochemical activation is an effective strategy for its future use.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-014-9194-2