The Influence of Fiber Length and Concentration on the Thermal Properties of Basalt Fiber Reinforced Intumescent Coating
Muhammad Yasir1, Faiz Ahmad2, Puteri Sri Melor3, Sami Ullah4, Muhammad Ali5
1Muhammad Yasir, Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia.
2Faiz Ahmad, Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia.
3Puteri Sri Melor, Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia.
4Sami Ullah, Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia. Department of Mechanical Engineering, University of Gujrat, Pakistan.
5Muhammad Ali, Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak, Malaysia.
Manuscript received on 07 May 2019 | Revised Manuscript received on 19 May 2019 | Manuscript Published on 23 May 2019 | PP: 898-901 | Volume-7 Issue-6S5 April 2019 | Retrieval Number: F11540476S519/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The effect of different length and concentration of basalt fibers have been studied in this research which effects the thermal properties of intumescent coating. The investigated intumescent coating formulations, containing ammonium polyphosphate (APP), melamine (MEL), boric acid (BA), expandable graphite (EG), epoxy resin (NPEL-128) and polyamide amine hardener (H-2310) were reinforced with 0-1 wt.% of basalt fibers of each 6 mm and 12 mm. The effects of the basalt fiber’s length on the char expansion and thermal stability of the intumescent coating, as well as on the char morphology and composition were studied. The char expansion was analyzed using a Carbolite furnace. Field emission scanning electron microscopy (FESEM) and Thermal stability test were carried out using thermogravimetric analysis (TGA). Furthermore, the morphological study confirmed that long fibers (12 mm) of basalt fibers form a network which protects the underlying steel substrate at elevated temperature in the event of fire. Elemental analysis showed that ICF-B1-12 has enhanced carbon content of 63.1% in the residual char. Thermogravimetric analysis results showed that BF reinforced formulations; ICF-B1-12 has 34% of residual weight at 800oC which is more thermally stable among all formulations.
Keywords: Intumescent coating, Basalt Fibers, Thermal Stability Test, Char Expansion, Char thickness.
Scope of the Article: Thermal Engineering