EFFECTS OF NANO-SIZED BORON NITRIDE ON THERMAL DECOMPOSITION BEHAVIOUR OF EPOXY-BASED INTUMESCENT COATING
Structural steel is integral part of construction industry. In the case of fire, it loses its load bearing capabilities at 500°C and collapse within 45 min. Intumescent fire retardant (IFR) coating is one of the easiest ways of fire protection system. In present research work, IFR coating formula...
محفوظ في:
| المؤلف الرئيسي: | |
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| التنسيق: | أطروحة |
| اللغة: | English |
| منشور في: |
2016
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://utpedia.utp.edu.my/21878/1/2016-MECHANICAL-EFFECTS%20OF%20NANO-SIZED%20BORON%20NITRIDE%20ON%20THERMAL%20DECOMPOSITION%20BEHAVIOUR%20OF%20EPOXY-BASED%20INTUMESCENT%20COATING-EZA%20SYAHERA%20BINTI%20ZULKURNAIN.pdf http://utpedia.utp.edu.my/21878/ |
| الوسوم: |
إضافة وسم
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| الملخص: | Structural steel is integral part of construction industry. In the case of fire, it loses
its load bearing capabilities at 500°C and collapse within 45 min. Intumescent fire
retardant (IFR) coating is one of the easiest ways of fire protection system. In present
research work, IFR coating formulations were developed using ammonium
polyphosphate (APP), expandable graphite (EG), melamine (MEL), boric acid (BA)
and Bisphenol A with polyamide amine H-2310 as curing agent. Nano-sized boron
nitride (BN) and nano-sized alumina (AI2O3) were added as inorganic fillers. The
coated steel substrates were subjected to furnace fire test at 500°C for 2h and fire
protection test for lh. The coatings were characterized by thermogravimetric analysis
(TGA) while the char from fire test were characterized by field emission scanning
electron microscopy (FESEM), X-ray diffraction (XRD) and Fourier transform
infrared spectroscopy (FTIR). The steel substrates were then characterized by optical
microscope and Rockwell hardness test. |
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