Atomic oxygen degradation mechanisms of epoxy composites for space applications

Yanjun He; Agnieszka Suliga; Alex Brinkmeyer; Mark Schenk; Ian Hamerton

doi:10.1016/j.polymdegradstab.2019.05.026

Atomic oxygen degradation mechanisms of epoxy composites for space applications

Yanjun He, Agnieszka Suliga, Alex Brinkmeyer, Mark Schenk, Ian Hamerton^*

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

9 Citations (Scopus)

213 Downloads (Pure)

Abstract

The effects of atomic oxygen on three commercial composite materials, based on two space-qualified epoxy resins (tetraglycidyl-4,4′-diaminodiphenylmethane (TGDDM) cured with a blend of 4,4′-methylenebis(2,6-diethylaniline) and 4,4′-methylenebis(2-isopropyl-6-methylaniline); and a blend of TGDDM, bisphenol A diglycidyl ether (DGEBA), and epoxidised novolak resin initiated by N’-(3,4-dichlorophenyl)-N,N-dimethylurea) are studied. Samples were exposed to a total fluence of (3.82 × 1020atom/cm2), equating to a period of 43 days in low Earth orbit. The flexural rigidity and modulus of all laminates displayed a reduction of 5–10% after the first exposure (equivalent to 20 days in orbit). Fourier transform infrared (FTIR) spectra, obtained during prolonged exposure to atomic oxygen, were interpreted using multivariate analysis to explore the degradation mechanisms.

Original language	English
Pages (from-to)	108-120
Number of pages	13
Journal	Polymer Degradation and Stability
Volume	166
Early online date	23 May 2019
DOIs	https://doi.org/10.1016/j.polymdegradstab.2019.05.026
Publication status	Published - 1 Aug 2019

Structured keywords

Bristol Composites Institute ACCIS

Keywords

Atomic oxygen
Epoxy resins
Principal components analysis
Thermoset polymers
Ultra-thin space composites

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10.1016/j.polymdegradstab.2019.05.026

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Improving Atomic Oxygen Resistance of Composite Materials for Flexible Deployable Structures in Space Applications
Author: He, Y., 29 Sep 2020
Supervisor: Hamerton, I. (Supervisor) & Schenk, M. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)

Professor Ian Hamerton
- ian.hamerton@bristol.ac.uk
- Department of Aerospace Engineering - Professor of Polymers and Composites
- Bristol Composites Institute (ACCIS)
Person: Academic

Cite this

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title = "Atomic oxygen degradation mechanisms of epoxy composites for space applications",

abstract = "The effects of atomic oxygen on three commercial composite materials, based on two space-qualified epoxy resins (tetraglycidyl-4,4′-diaminodiphenylmethane (TGDDM) cured with a blend of 4,4′-methylenebis(2,6-diethylaniline) and 4,4′-methylenebis(2-isopropyl-6-methylaniline); and a blend of TGDDM, bisphenol A diglycidyl ether (DGEBA), and epoxidised novolak resin initiated by N{\textquoteright}-(3,4-dichlorophenyl)-N,N-dimethylurea) are studied. Samples were exposed to a total fluence of (3.82 × 1020atom/cm2), equating to a period of 43 days in low Earth orbit. The flexural rigidity and modulus of all laminates displayed a reduction of 5–10% after the first exposure (equivalent to 20 days in orbit). Fourier transform infrared (FTIR) spectra, obtained during prolonged exposure to atomic oxygen, were interpreted using multivariate analysis to explore the degradation mechanisms.",

keywords = "Atomic oxygen, Epoxy resins, Principal components analysis, Thermoset polymers, Ultra-thin space composites",

author = "Yanjun He and Agnieszka Suliga and Alex Brinkmeyer and Mark Schenk and Ian Hamerton",

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doi = "10.1016/j.polymdegradstab.2019.05.026",

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AU - He, Yanjun

AU - Suliga, Agnieszka

AU - Brinkmeyer, Alex

AU - Schenk, Mark

AU - Hamerton, Ian

PY - 2019/8/1

Y1 - 2019/8/1

N2 - The effects of atomic oxygen on three commercial composite materials, based on two space-qualified epoxy resins (tetraglycidyl-4,4′-diaminodiphenylmethane (TGDDM) cured with a blend of 4,4′-methylenebis(2,6-diethylaniline) and 4,4′-methylenebis(2-isopropyl-6-methylaniline); and a blend of TGDDM, bisphenol A diglycidyl ether (DGEBA), and epoxidised novolak resin initiated by N’-(3,4-dichlorophenyl)-N,N-dimethylurea) are studied. Samples were exposed to a total fluence of (3.82 × 1020atom/cm2), equating to a period of 43 days in low Earth orbit. The flexural rigidity and modulus of all laminates displayed a reduction of 5–10% after the first exposure (equivalent to 20 days in orbit). Fourier transform infrared (FTIR) spectra, obtained during prolonged exposure to atomic oxygen, were interpreted using multivariate analysis to explore the degradation mechanisms.

AB - The effects of atomic oxygen on three commercial composite materials, based on two space-qualified epoxy resins (tetraglycidyl-4,4′-diaminodiphenylmethane (TGDDM) cured with a blend of 4,4′-methylenebis(2,6-diethylaniline) and 4,4′-methylenebis(2-isopropyl-6-methylaniline); and a blend of TGDDM, bisphenol A diglycidyl ether (DGEBA), and epoxidised novolak resin initiated by N’-(3,4-dichlorophenyl)-N,N-dimethylurea) are studied. Samples were exposed to a total fluence of (3.82 × 1020atom/cm2), equating to a period of 43 days in low Earth orbit. The flexural rigidity and modulus of all laminates displayed a reduction of 5–10% after the first exposure (equivalent to 20 days in orbit). Fourier transform infrared (FTIR) spectra, obtained during prolonged exposure to atomic oxygen, were interpreted using multivariate analysis to explore the degradation mechanisms.

KW - Atomic oxygen

KW - Epoxy resins

KW - Principal components analysis

KW - Thermoset polymers

KW - Ultra-thin space composites

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VL - 166

SP - 108

EP - 120

JO - Polymer Degradation and Stability

JF - Polymer Degradation and Stability

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ER -

Atomic oxygen degradation mechanisms of epoxy composites for space applications

Abstract

Structured keywords

Keywords

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Improving Atomic Oxygen Resistance of Composite Materials for Flexible Deployable Structures in Space Applications

Professor Ian Hamerton

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