University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Analysis of atomic oxygen and ultraviolet exposure effects on cycloaliphatic epoxy resins reinforced with octa-functional POSS

Suliga, Agnieszka, Jakubczyk, Ewa, Hamerton, I and Viquerat, Andrew (2017) Analysis of atomic oxygen and ultraviolet exposure effects on cycloaliphatic epoxy resins reinforced with octa-functional POSS Acta Astronautica, 142. pp. 103-111.

[img] Text
AA_2017_745_Preprint.pdf - Accepted version Manuscript
Restricted to Repository staff only until 14 October 2018.

Download (2MB)

Abstract

In this study, novel nanocomposites were created by incorporation of Silsesquioxane containing eight glycidylether groups (octa-POSS) into a cycloaliphatic epoxy cured by an anhydride. The developed resin system, with different nanoparticle concentrations, was used on the outer layers of an ultra-thin CFRP structure in order to provide better environmental resistance to the environment of low Earth orbit (LEO) which was tested in a ground-simulation facility. The developed resins were subjected to space-like degrading factors and their response to corrosion, radiation and elevated temperatures was monitored by mass loss, together with measuring changes in surface chemistry (ATR-FTIR), functionality development (contact angle measurement and XPS), roughness (scanning laser microscopy) and morphology (SEM). The influence of increasing octa-POSS content on thermo-mechanical properties was measured with DMTA and the strength and modulus of elasticity were determined by flexural test. The addition of octa-POSS in any loading improves the environmental resistance, however, the most significant retention of mass and mechanical and surface properties after space-like exposure was observed in the 20 wt% octa-POSS reinforced cycloaliphatic epoxy. The results presented here may contribute to the development of novel class of nanocomposites which can offer an extended service life in LEO.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
NameEmailORCID
Suliga, Agnieszkaa.suliga@surrey.ac.ukUNSPECIFIED
Jakubczyk, Ewae.jakubczyk@surrey.ac.ukUNSPECIFIED
Hamerton, IUNSPECIFIEDUNSPECIFIED
Viquerat, Andrewa.viquerat@surrey.ac.ukUNSPECIFIED
Date : 25 October 2017
Funders : Engineering and Physical Sciences Research Council (EPSRC)
Identification Number : 10.1016/j.actaastro.2017.10.018
Grant Title : Industrial CASE EP/L505675/1
Copyright Disclaimer : © 2017 IAA. Published by Elsevier Ltd. All rights reserved.
Uncontrolled Keywords : Atomic oxygen; Cycloaliphatic epoxy resin; POSS; Space materials; UV radiation
Depositing User : Jane Hindle
Date Deposited : 17 Oct 2017 15:18
Last Modified : 13 Nov 2017 14:43
URI: http://epubs.surrey.ac.uk/id/eprint/842560

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800