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11372 Following the Corrosion of E-Glass COmposite Using Sem/Edx

Picture for 11372 Following the Corrosion of E-Glass COmposite Using Sem/Edx
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Product Number: 51300-11372-SG
ISBN: 2011 11372 CP
Author: Kevin Spoo, Marie Kalinowski and Terry Gano
Publication Date: 2011
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The corrosion of E-glass by multiple corrosive media and most significantly by strong acids has been documented via multiple testing protocols. Bare glass weight loss in a corrosive media is often cited to gauge the performance of various glass fiber compositions. ASTM C581 testing is used to test composite flexural strength/modulus performance over time in a corrosive media under no stress. Stress-corrosion testing by Greenwood plots the deterioration of composite rods over time when exposed to both a corrosive media and multiple stress states. This paper follows the corrosion of Eglass & Advantex® (1) E-CR glass pultruded rods visually using SEM (Scanning Electron Microscopy). It examines the corrosion via EDX (Energy Dispersive X-ray) and shows the mechanism by which 10% sulfuric acid destroys the composite rod. The most interesting observation is that the bond strength between resin and reinforcement is lost well before a significant percentage of glass has corroded.

Key Words: corrosion, composite, glass fiber, glass fibre, E-glass, E-CR glass, boron-free, SEM, EDX.
The corrosion of E-glass by multiple corrosive media and most significantly by strong acids has been documented via multiple testing protocols. Bare glass weight loss in a corrosive media is often cited to gauge the performance of various glass fiber compositions. ASTM C581 testing is used to test composite flexural strength/modulus performance over time in a corrosive media under no stress. Stress-corrosion testing by Greenwood plots the deterioration of composite rods over time when exposed to both a corrosive media and multiple stress states. This paper follows the corrosion of Eglass & Advantex® (1) E-CR glass pultruded rods visually using SEM (Scanning Electron Microscopy). It examines the corrosion via EDX (Energy Dispersive X-ray) and shows the mechanism by which 10% sulfuric acid destroys the composite rod. The most interesting observation is that the bond strength between resin and reinforcement is lost well before a significant percentage of glass has corroded.

Key Words: corrosion, composite, glass fiber, glass fibre, E-glass, E-CR glass, boron-free, SEM, EDX.
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