Enhancement of microwave absorption properties of epoxy by sol–gel-synthesised ZnO nanoparticles
(2015) In Indian Chemical Engineer 58 (2016)(4). p.310-324- Abstract
The microwave absorption property of epoxy resins is generally poor, which can be improved by introducing fillers such as carbon nanotubes and metal oxide nanoparticles (NPs) having good microwave absorption characteristics. In this paper, the microwave absorption properties of epoxy-ZnO nanocomposites have been studied. The ZnO NPs were synthesised using the sol–gel technique and characterised for size, shape and composition. It was observed that the NPs had a polycrystalline structure and an average particle size of 27.5 nm. The synthesised NPs were incorporated into the epoxy resin at 1% and 2% loading using a closed mould technique. The flexural strength of the composites was examined using Universal Testing Machine and the glass... (More)
The microwave absorption property of epoxy resins is generally poor, which can be improved by introducing fillers such as carbon nanotubes and metal oxide nanoparticles (NPs) having good microwave absorption characteristics. In this paper, the microwave absorption properties of epoxy-ZnO nanocomposites have been studied. The ZnO NPs were synthesised using the sol–gel technique and characterised for size, shape and composition. It was observed that the NPs had a polycrystalline structure and an average particle size of 27.5 nm. The synthesised NPs were incorporated into the epoxy resin at 1% and 2% loading using a closed mould technique. The flexural strength of the composites was examined using Universal Testing Machine and the glass transition temperature was measured using differential scanning calorimetry. It was seen that the flexural modulus increased by around 6% and 11% for 1% and 2% ZnO loading. The microwave absorbance of pure and ZnO-filled epoxy was tested using a Network Analyzer and it was found that the microwave absorbance is dependent on the frequency and nanoparticle loading and it increased with the increase in ZnO loading.
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- author
- Thakur, Shaila ; Bhattacharya, Rahul LU ; Neogi, Swati and Neogi, Sudarsan
- publishing date
- 2015-09-29
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Composite, Epoxy, Microwave, Sol–gel, Zinc oxide
- in
- Indian Chemical Engineer
- volume
- 58 (2016)
- issue
- 4
- pages
- 15 pages
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:84945205417
- ISSN
- 0019-4506
- DOI
- 10.1080/00194506.2015.1090888
- language
- English
- LU publication?
- no
- additional info
- Publisher Copyright: © 2015 Indian Institute of Chemical Engineers.
- id
- a539a6f6-6e28-4358-a5a9-236af683df7b
- date added to LUP
- 2025-08-28 21:09:16
- date last changed
- 2025-09-17 15:32:19
@article{a539a6f6-6e28-4358-a5a9-236af683df7b,
abstract = {{<p>The microwave absorption property of epoxy resins is generally poor, which can be improved by introducing fillers such as carbon nanotubes and metal oxide nanoparticles (NPs) having good microwave absorption characteristics. In this paper, the microwave absorption properties of epoxy-ZnO nanocomposites have been studied. The ZnO NPs were synthesised using the sol–gel technique and characterised for size, shape and composition. It was observed that the NPs had a polycrystalline structure and an average particle size of 27.5 nm. The synthesised NPs were incorporated into the epoxy resin at 1% and 2% loading using a closed mould technique. The flexural strength of the composites was examined using Universal Testing Machine and the glass transition temperature was measured using differential scanning calorimetry. It was seen that the flexural modulus increased by around 6% and 11% for 1% and 2% ZnO loading. The microwave absorbance of pure and ZnO-filled epoxy was tested using a Network Analyzer and it was found that the microwave absorbance is dependent on the frequency and nanoparticle loading and it increased with the increase in ZnO loading.</p>}},
author = {{Thakur, Shaila and Bhattacharya, Rahul and Neogi, Swati and Neogi, Sudarsan}},
issn = {{0019-4506}},
keywords = {{Composite; Epoxy; Microwave; Sol–gel; Zinc oxide}},
language = {{eng}},
month = {{09}},
number = {{4}},
pages = {{310--324}},
publisher = {{Taylor & Francis}},
series = {{Indian Chemical Engineer}},
title = {{Enhancement of microwave absorption properties of epoxy by sol–gel-synthesised ZnO nanoparticles}},
url = {{http://dx.doi.org/10.1080/00194506.2015.1090888}},
doi = {{10.1080/00194506.2015.1090888}},
volume = {{58 (2016)}},
year = {{2015}},
}