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The Effects of Fiberglass on the Thermal Insulation Properties of Intumescent Coatings

Omar, Nor Sharifah (2011) The Effects of Fiberglass on the Thermal Insulation Properties of Intumescent Coatings. Universiti Teknologi Petronas. (Unpublished)

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Abstract

The aim of this study is to investigate the influence of fiberglass addition into a basic intumescent coating formulation towards the enhancement of its thermal insulation properties. Intumescent coating has been an effective way to provide fire protection to the structural steel in the construction industry in the case of fire. The intumescent coating were formulated from expandable graphite (EG), ammonium polyphosphate (APP), melamine, boric acid, bisphenol A epoxy resin (BPA), triethylenetetramine (TETA) and fiberglass 3.00 mm. Eight different formulations were developed to study the effects of fiberglass addition on the thermal insulation performance of the coatings. The new developed intumescent coatings were tested for their fire performance by burning them at 450 •c, 650 •c and 850 •c in the furnace for 2 hours. The effects of each fire test at different temperatures; low and high temperature were evaluated. Scanning Electron Microscope (SEM), X-Ray Diffraction technique (XRD) and Thermogravimetric Analysis (TGA) were conducted to study the char morphology, the crystalline material structure and chemical components and the thermal analysis of the coatings. The FG07 and FG08 formulations with 6.0 grams and 7.0 grams fiberglass provide better results in terms of the enhanced thermal insulation properties of the coatings. The FG07 and FG08 coating recorded the best expansion during fire test at 450 •c and 650 •c, the highest back steel temperature during thermal insulation test and illustrate good coating characteristics after analysis using SEM. These coatings also recorded the presence of graphite, boron oxide and boron phosphate after XRD testing and with some residue left after degradation analysis using SEM. It can be concluded that the addition of fiberglass into the basic intumescent formulations has enhanced the thermal characteristic of the coating and helps to maintain the structure of buildings in longer time.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Materials - Engineering materials - Polymers - Biodegradability
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 09 Oct 2013 11:07
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/8737

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