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Fire Resistance Properties of Ceramic Wool Fiber Reinforced Intumescent Coatings

Amir, Norlaili and W. Othman, W. M. S. and Faiz , Ahmad (2015) Fire Resistance Properties of Ceramic Wool Fiber Reinforced Intumescent Coatings. [Citation Index Journal]

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Abstract

This research studied the effects of varied weight percentage and length of ceramic wool fiber (CWF) reinforcement to fire retardant performance of epoxy-based intumescent coating. Ten formulations were developed using ammonium polyphosphate (APP), expandable graphite (EG), melamine (MEL) and boric acid (BA). The mixing was conducted in two stages; powdered materials were grinded in Rocklabs mortar grinder and epoxy-mixed using Caframo mixer at low speed mixing. The samples were applied on mild steel substrate and exposed to 500°C heat inside Carbolite electric furnace. The char expansion and its physical properties were observed. Scanning electron microscopy (SEM) analyses were conducted to inspect the fiber dispersion, fiber condition and the cell structure of both coatings and chars produced. Thermogravimetric analyses (TGA) were conducted to study the thermal properties of the coating such as degradation temperature and residual weight. Fire retardant performance was determined by measuring backside temperature of substrate in 1-hour, 1000°C Bunsen burner test according to UL 1709 fire regime. The results showed that intumescent coating reinforced with CWF produced better fire resistance performance. When compared to unreinforced coating, formulation S6-15 significantly reduced steel temperature at approximately 34.7% to around 175°C. However, higher fiber weight percentage had slightly decreased fire retardant performance of the coating.

Item Type:Citation Index Journal
Impact Factor:SJR = 0.15
Uncontrolled Keywords:intumescent coating, ceramic fiber, fire resistance, fire retardant
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
T Technology > TJ Mechanical engineering and machinery
T Technology > TP Chemical technology
Academic Subject One:Academic Department - Mechanical Engineering - Materials - Engineering materials - Composites material - Polymer matrix composites
Academic Subject Two:Academic Department - Mechanical Engineering - Materials - Corrosion engineering - Degradation of materials due to temperature, stress and environment
Academic Subject Three:Academic Department - Mechanical Engineering - Materials - Engineering materials - Metals alloys - Morphology
Departments / MOR / COE:Mission Oriented Research > Energy
ID Code:11721
Deposited By: Dr Norlaili Amir
Deposited On:07 Oct 2016 01:42
Last Modified:07 Oct 2016 01:42

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