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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
2015
|
| Subjects: | |
| Online Access: | http://eprints.um.edu.my/13959/1/Eggshells_A_novel_bio-filler_for_intumescent_flame-retardant.pdf |
| _version_ | 1796946666498031616 |
|---|---|
| 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. |
| collection | UM |
| 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. |
| first_indexed | 2024-03-06T05:35:15Z |
| format | Article |
| id | um.eprints-13959 |
| institution | Universiti Malaya |
| language | English |
| last_indexed | 2024-03-06T05:35:15Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | 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, DOI https://doi.org/10.1016/j.porgcoat.2015.01.003 <https://doi.org/10.1016/j.porgcoat.2015.01.003>. http://www.sciencedirect.com/science/article/pii/S0300944015000120 DOI 10.1016/j.porgcoat.2015.01.003 |
| 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 |
| title | 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_short | Eggshells: A novel bio-filler for intumescent flame-retardant coatings |
| title_sort | eggshells a novel bio filler for intumescent flame retardant coatings |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) |
| url | http://eprints.um.edu.my/13959/1/Eggshells_A_novel_bio-filler_for_intumescent_flame-retardant.pdf |
| work_keys_str_mv | AT yewmc eggshellsanovelbiofillerforintumescentflameretardantcoatings AT sulongnhr eggshellsanovelbiofillerforintumescentflameretardantcoatings AT yewmk eggshellsanovelbiofillerforintumescentflameretardantcoatings AT amalinama eggshellsanovelbiofillerforintumescentflameretardantcoatings AT johanmr eggshellsanovelbiofillerforintumescentflameretardantcoatings |