Preparation and Characterization of a Latent Reactive Organo-phosphor us-nitrogen Flame Retardant and its Applications in Polylactic acid Syst ems

Preparation and Characterization of a Latent Reactive Organo-phosphor us-nitrogen Flame Retardant and its Applications in Polylactic acid Syst ems | 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 Preparation and Characterization of a Latent Reactive Organo-phosphor us-nitrogen Flame Retardant and its Applications in Polylactic acid Syst ems 越峰 罗, 桦浩 温, 卓玉 陈, 正福 廖 This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3856244/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract In this study, an organophosphorus-nitrogen compound with latent reactive flame retardant properties(LROPN) were prepared by a facile method using 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO), 4,4 ′-diphenylmethane diisocyanate(MDI) and ethanol as raw materials. The structure of the resulted compound were characterized by infrared spectroscopy (FTIR) and nuclear magnetic resonance ( 1 H-NMR). The performances of LROPN used for Polylactic acid (PLA) were investigatd by the technologies of vertical combustion (UL-94) and limiting oxygen index (LOI) test. The results showed that adding LROPN into PLA matrix could significantly improve the flame retardancy of PLA. The LROPN addition of 8(wt)% could reach UL-94 V0 level, and the LOI increased from 19.5% to more than 26%. The TG-FTIR spetra of LROPN indicated that LROPN can deblock at around temperature of 180 o C, which indicating LROPN have latent reactivity. The TG-DTA data showed that the maximum weight lost peak LROPN/PLA systems occured at temperature around 363 o C, and the amount of the residue carbon reached 3.93% when the content of LROPN was 8(wt)%. The scanning electron microscopy(SEM) morphologies showed that the addition of LROPN helped to reduce the melt driping of LROPN/PLA systems. The mechanism of flame retardant was investiated based on the TG-FTIR spetra of LROPN, the TG-DTA data of LROPN/PLA systems, and SEM morphologies of residue carbon. The flame retardancy mechanism of LROPN included the combination of free radical suppression and inert gas in the gas phase, and the barrier effect of coke residue in the condensed phase. polylactic acid(PLA) latent reactive organophosphorus-nitrogen conpound(LROPN) preparation characterization flame retardant properties Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-3856244","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":267110680,"identity":"c8d259f1-2f9b-4b63-9560-1a06b0837755","order_by":0,"name":"越峰 罗","email":"","orcid":"","institution":"Guangdong University of Technolgy","correspondingAuthor":false,"prefix":"","firstName":"越峰","middleName":"","lastName":"罗","suffix":""},{"id":267110681,"identity":"df5d3c3e-6082-4b34-9ea7-6545335f7641","order_by":1,"name":"桦浩 温","email":"","orcid":"","institution":"Guangdong University of Technolgy","correspondingAuthor":false,"prefix":"","firstName":"桦浩","middleName":"","lastName":"温","suffix":""},{"id":267110682,"identity":"8a4576ba-ff50-4c9e-af43-8f09d7f69f73","order_by":2,"name":"卓玉 陈","email":"","orcid":"","institution":"Guangdong University of Technolgy","correspondingAuthor":false,"prefix":"","firstName":"卓玉","middleName":"","lastName":"陈","suffix":""},{"id":267110683,"identity":"c9df2376-b8f2-4952-b15d-31fb4e448d51","order_by":3,"name":"正福 廖","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA3klEQVRIiWNgGAWjYBACPmYgwdgAJJgPMD5IqLAhrIUNroUtgdngwZk0IrQwILSwST5sO0SEFnbmhw9/7rDJk3fjMatIYDvAwN/enUDAYWzGBpJn0ooNj/GY3UjgucMgcebsBkJ+MZMwbDucuHF+D1CLxDMGA4lcQlrYv0kktv1P3NjGY1aQYHCYGC08ZhIH2w4kzmfjMWNISCBOS7FhY1ty4gY2tmKJhANpPAT9ws9/fOPDn212ifPbmDd+/PnPRo6/vRe/FjgwOACheYhTDgLyDcSrHQWjYBSMghEGAJhFRO1qUw8jAAAAAElFTkSuQmCC","orcid":"","institution":"Guangdong University of Technolgy","correspondingAuthor":true,"prefix":"","firstName":"正福","middleName":"","lastName":"廖","suffix":""}],"badges":[],"createdAt":"2024-01-12 08:29:11","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-3856244/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-3856244/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":49914784,"identity":"dc6c2430-5629-4754-9256-e5d2df6b87bd","added_by":"auto","created_at":"2024-01-20 15:07:34","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":959802,"visible":true,"origin":"","legend":"","description":"","filename":"PreparationandCharacterizationofaLatentReactiveeng.0.pdf","url":"https://assets-eu.researchsquare.com/files/rs-3856244/v1_covered_bd02518d-eccb-412a-8843-b6c71b4ff617.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Preparation and Characterization of a Latent Reactive Organo-phosphor us-nitrogen Flame Retardant and its Applications in Polylactic acid Syst ems","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"polylactic acid(PLA), latent reactive organophosphorus-nitrogen conpound(LROPN), preparation, characterization, flame retardant properties","lastPublishedDoi":"10.21203/rs.3.rs-3856244/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3856244/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this study, an organophosphorus-nitrogen compound with latent reactive flame retardant properties(LROPN) were prepared by a facile method using 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO), 4,4 ′-diphenylmethane diisocyanate(MDI) and ethanol as raw materials. The structure of the resulted compound were characterized by infrared spectroscopy (FTIR) and nuclear magnetic resonance (\u003csup\u003e1\u003c/sup\u003eH-NMR). The performances of LROPN used for Polylactic acid (PLA) were investigatd by the technologies of vertical combustion (UL-94) and limiting oxygen index (LOI) test. The results showed that adding LROPN into PLA matrix could significantly improve the flame retardancy of PLA. The LROPN addition of 8(wt)% could reach UL-94 V0 level, and the LOI increased from 19.5% to more than 26%. The TG-FTIR spetra of LROPN indicated that LROPN can deblock at around temperature of 180\u003csup\u003eo\u003c/sup\u003eC, which indicating LROPN have latent reactivity. The TG-DTA data showed that the maximum weight lost peak LROPN/PLA systems occured at temperature around 363 \u003csup\u003eo\u003c/sup\u003eC, and the amount of the residue carbon reached 3.93% when the content of LROPN was 8(wt)%. The scanning electron microscopy(SEM) morphologies showed that the addition of LROPN helped to reduce the melt driping of LROPN/PLA systems. The mechanism of flame retardant was investiated based on the TG-FTIR spetra of LROPN, the TG-DTA data of LROPN/PLA systems, and SEM morphologies of residue carbon. The flame retardancy mechanism of LROPN included the combination of free radical suppression and inert gas in the gas phase, and the barrier effect of coke residue in the condensed phase.\u003c/p\u003e","manuscriptTitle":"Preparation and Characterization of a Latent Reactive Organo-phosphor us-nitrogen Flame Retardant and its Applications in Polylactic acid Syst ems","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-01-16 18:58:38","doi":"10.21203/rs.3.rs-3856244/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"dcbf370e-c702-4eb2-ba28-d11f6bd9ef5d","owner":[],"postedDate":"January 16th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-01-20T14:59:23+00:00","versionOfRecord":[],"versionCreatedAt":"2024-01-16 18:58:38","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-3856244","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3856244","identity":"rs-3856244","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}