Outgassing properties of bamboo-derived cellulose nanofiber sheets containing hemicellulose and lignin evaluated by ASTM E1559 for space applications

Outgassing properties of bamboo-derived cellulose nanofiber sheets containing hemicellulose and lignin evaluated by ASTM E1559 for space applications | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Outgassing properties of bamboo-derived cellulose nanofiber sheets containing hemicellulose and lignin evaluated by ASTM E1559 for space applications Naoki Shimosako, Eiji Miyazaki, Yukino Masuda, Keisuke Tojo, Miki Matsuoka, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7788201/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 05 Jan, 2026 Read the published version in CEAS Space Journal → Version 1 posted 9 You are reading this latest preprint version Abstract Mitigation of outgassing from organic polymeric components is crucial for safeguarding high-sensitivity spacecraft optics. In this study, the outgassing characteristics of three bamboo-derived cellulose nanofiber (CNF) films with different residual hemicellulose and lignin concentrations, namely, CNF, CNF-containing hemicellulose (HCNF), and lignin-and hemicellulose-containing CNF (LHCNF), which are natural polymeric materials, were investigated. The outgassing rates, which were determined in accordance with ASTM E1559, were analyzed using a one-dimensional two-component diffusion model. CNF and HCNF released only water, whereas LHCNF emitted trace quantities of lignin-derived volatiles 1 in addition to water. Nevertheless, the total contaminant contents of CNF and LHCNF were an order of magnitude below the 0.1% threshold specified in ASTM E595, indicating their suitability for most space applications. For missions demanding the lowest absolute contamination levels, further lignin removal can reduce volatile condensable materials by an additional order of magnitude. The bamboo-to-LHCNF production pathway offers a scalable method for purifying plant-based materials for spacecraft integration. Contamination Cellulose Nanofiber Bamboo Outgassing Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 05 Jan, 2026 Read the published version in CEAS Space Journal → Version 1 posted Editorial decision: Revision requested 06 Nov, 2025 Reviews received at journal 06 Nov, 2025 Reviews received at journal 06 Nov, 2025 Reviewers agreed at journal 13 Oct, 2025 Reviewers agreed at journal 13 Oct, 2025 Reviewers invited by journal 10 Oct, 2025 Editor assigned by journal 09 Oct, 2025 Submission checks completed at journal 06 Oct, 2025 First submitted to journal 06 Oct, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7788201","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":528652084,"identity":"e4bdff29-4910-4de2-913f-a984762426d5","order_by":0,"name":"Naoki Shimosako","email":"","orcid":"","institution":"Shizuoka University","correspondingAuthor":false,"prefix":"","firstName":"Naoki","middleName":"","lastName":"Shimosako","suffix":""},{"id":528652085,"identity":"93dd5e5b-4ac0-4bed-86ed-00eae94529a7","order_by":1,"name":"Eiji Miyazaki","email":"","orcid":"","institution":"Japan Aerospace Exploration 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