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Eggshells: A novel bio-filler for intumescent flame-retardant coatings

The aim of this study was to develop intumescent flame-retardant coatings that incorporate chicken eggshell (CES) waste as a novel eco-friendly bio-filler. Three flame-retardant additives, namely, ammonium polyphosphate phase II, pentaerythritol and melamine were mixed with flame-retardant fillers a...

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Main Authors: Yew, M.C., Sulong, N.H.R., Yew, M.K., Amalina, M.A., Johan, M.R.
Format: Article
Language:English
Published: 2015
Subjects:
T Technology (General)
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.um.edu.my/13959/1/Eggshells_A_novel_bio-filler_for_intumescent_flame-retardant.pdf
http://eprints.um.edu.my/13959/
http://www.sciencedirect.com/science/article/pii/S0300944015000120
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spelling my.um.eprints.139592015-09-17T03:22:43Z http://eprints.um.edu.my/13959/ Eggshells: A novel bio-filler for intumescent flame-retardant coatings Yew, M.C. Sulong, N.H.R. Yew, M.K. Amalina, M.A. Johan, M.R. T Technology (General) TA Engineering (General). Civil engineering (General) The aim of this study was to develop intumescent flame-retardant coatings that incorporate chicken eggshell (CES) waste as a novel eco-friendly bio-filler. Three flame-retardant additives, namely, ammonium polyphosphate phase II, pentaerythritol and melamine were mixed with flame-retardant fillers and acrylic binder to synthesize the intumescent coatings. The fire performance of the coatings was evaluated in accordance with 'BS 476: Part 6-Fire Propagation' and 'BS 476: Part 7-Surface Spread of Flame' test standards. It was found that 4 out of 5 of the coated specimens (B, C, D and E) neither showed surface spread of flame nor any afterglow combustion upon fire exposure. The addition of 5.0 wt and 2.5 wt eggshell bio-filler into formulations B and E, respectively, improved fire protection due to char formation, with better morphology, height and structure of the protecting shield. The filler compositions of samples D (3.4 wt TiO2/3.3 wt Al(OH)3/3.3 wt Mg(OH)(2)) and E (2.5 wt TiO2/2.5 wt Al(OH)(3)/2.5 wt Mg(OH)(2)/2.5 wt CES) applied at a thickness of 1.5 +/- 0.2 mm achieved the lowest fire propagation index with a value of 4.5 and 5.0, respectively (BS 476 Part 6, Class 0 materials) which indicates excellent fire-stopping properties. The results showed that the coatings were effective in fire protection, with good qualities of water resistance, thermal stability, and adhesion strength. Significantly, coating E (with CES) has proved to be efficient in the protection of plywood against fire. (C) 2015 Elsevier B.V. All rights reserved. 2015-04 Article PeerReviewed application/pdf en http://eprints.um.edu.my/13959/1/Eggshells_A_novel_bio-filler_for_intumescent_flame-retardant.pdf Yew, M.C. and Sulong, N.H.R. and Yew, M.K. and Amalina, M.A. and Johan, M.R. (2015) Eggshells: A novel bio-filler for intumescent flame-retardant coatings. Progress in Organic Coatings, 81. pp. 116-124. ISSN 0300-9440 http://www.sciencedirect.com/science/article/pii/S0300944015000120 DOI 10.1016/j.porgcoat.2015.01.003
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
Yew, M.C.
Sulong, N.H.R.
Yew, M.K.
Amalina, M.A.
Johan, M.R.
Eggshells: A novel bio-filler for intumescent flame-retardant coatings
description The aim of this study was to develop intumescent flame-retardant coatings that incorporate chicken eggshell (CES) waste as a novel eco-friendly bio-filler. Three flame-retardant additives, namely, ammonium polyphosphate phase II, pentaerythritol and melamine were mixed with flame-retardant fillers and acrylic binder to synthesize the intumescent coatings. The fire performance of the coatings was evaluated in accordance with 'BS 476: Part 6-Fire Propagation' and 'BS 476: Part 7-Surface Spread of Flame' test standards. It was found that 4 out of 5 of the coated specimens (B, C, D and E) neither showed surface spread of flame nor any afterglow combustion upon fire exposure. The addition of 5.0 wt and 2.5 wt eggshell bio-filler into formulations B and E, respectively, improved fire protection due to char formation, with better morphology, height and structure of the protecting shield. The filler compositions of samples D (3.4 wt TiO2/3.3 wt Al(OH)3/3.3 wt Mg(OH)(2)) and E (2.5 wt TiO2/2.5 wt Al(OH)(3)/2.5 wt Mg(OH)(2)/2.5 wt CES) applied at a thickness of 1.5 +/- 0.2 mm achieved the lowest fire propagation index with a value of 4.5 and 5.0, respectively (BS 476 Part 6, Class 0 materials) which indicates excellent fire-stopping properties. The results showed that the coatings were effective in fire protection, with good qualities of water resistance, thermal stability, and adhesion strength. Significantly, coating E (with CES) has proved to be efficient in the protection of plywood against fire. (C) 2015 Elsevier B.V. All rights reserved.
format Article
author Yew, M.C.
Sulong, N.H.R.
Yew, M.K.
Amalina, M.A.
Johan, M.R.
author_facet Yew, M.C.
Sulong, N.H.R.
Yew, M.K.
Amalina, M.A.
Johan, M.R.
author_sort Yew, M.C.
title Eggshells: A novel bio-filler for intumescent flame-retardant coatings
title_short Eggshells: A novel bio-filler for intumescent flame-retardant coatings
title_full Eggshells: A novel bio-filler for intumescent flame-retardant coatings
title_fullStr Eggshells: A novel bio-filler for intumescent flame-retardant coatings
title_full_unstemmed Eggshells: A novel bio-filler for intumescent flame-retardant coatings
title_sort eggshells: a novel bio-filler for intumescent flame-retardant coatings
publishDate 2015
url http://eprints.um.edu.my/13959/1/Eggshells_A_novel_bio-filler_for_intumescent_flame-retardant.pdf
http://eprints.um.edu.my/13959/
http://www.sciencedirect.com/science/article/pii/S0300944015000120
_version_ 1643689695500042240
score 13.211869

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