ArticleNanomaterials (Basel, Switzerland)2022
Influence of POSS Type on the Space Environment Durability of Epoxy-POSS Nanocomposites.
Article in Nanomaterials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 13 citations in OpenAlex.
- Thermo-Oxidative Decomposition and Ageing of Polymer/POSS Hybrids and Nanocomposites-Failure Predictions and Lifetime Design for Circular End-of-Life Planning.Materials (Basel, Switzerland) · 2025Review
- Nanomaterials for Potential Uses in Extraterrestrial Environments.Nanomaterials (Basel, Switzerland) · 2024Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
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Abstract
In order to use polymers at low Earth orbit (LEO) environment, they must be protected against atomic oxygen (AO) erosion. A promising protection strategy is to incorporate polyhedral oligomeric silsesquioxane (POSS) molecules into the polymer backbone. In this study, the space durability of epoxy-POSS (EPOSS) nanocomposites was investigated. Two types of POSS molecules were incorporated separately-amine-based and epoxy-based. The outgassing properties of the EPOSS, in terms of total mass loss, collected volatile condensable material, and water vapor regain were measured as a function of POSS type and content. The AO durability was studied using a ground-based AO simulation system. Surface compositions of EPOSS were studied using high-resolution scanning electron microscopy and X-ray photoelectron spectroscopy. It was found that with respect to the outgassing properties, only some of the EPOSS compositions were suitable for the ultrahigh vacuum space environment, and that the POSS type and content had a strong effect on their outgassing properties. Regardless of the POSS type being used, the AO durability improved significantly. This improvement is attributed to the formation of a self-passivated AO durable SiO
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