Effect of amino silane coupling agent on crystallization behavior of polyamide 612/glass fiber composites

Effect of amino silane coupling agent on crystallization behavior of polyamide 612/glass fiber composites | 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 Effect of amino silane coupling agent on crystallization behavior of polyamide 612/glass fiber composites Yu-Hsiang Yeh, Hsu-I Mao, Chin-Wen Chen, Syang-Peng Rwei This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3866997/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 13 Apr, 2025 Read the published version in Polymer Bulletin → Version 1 posted 10 You are reading this latest preprint version Abstract Amino silane coupling agents (0, 0.5, 1.0, and 2.0wt %) were added to polyamide 612 (PA612)-based composites reinforced with short glass fibers (GFs) to investigate the effect of the additives on the crystallization kinetics, which were tested using injection molding. The isothermal crystallization activation energies and the kinetic parameters of the crystallization processes of the samples were determined using the Arrhenius, Avrami, and Lauritzen–Hoffman models. The kinetic calculations revealed that the addition of a silane coupling agent significantly benefitted the GFs in terms of slowing down the isothermal crystallization rate of PA612. Moreover, treating the surface of GF-reinforced PA612 composites with a silane coupling agent induced optimum performance of the injection-molded PA612 parts. This is because the GFs enhanced the mechanical properties while the coupling agent delayed crystallization and improved the GF-substrate adhesion. Moreover, compared with a coupling agent-free PA612/GF composite, the activation energy of crystallization was reduced by a factor of over 1.5 from Δ E a -92.84 to Δ E a -163.55 J/mole with the addition of a coupling agent. The experimental results demonstrated that the PA612/GF composite with 1.0wt % coupling agent displayed the highest absolute value of crystallization activation energy (|Δ E a |). Polyamide 612/GF composite material coupling agent crystallization rate crystallization activation energy Full Text Additional Declarations No competing interests reported. Supplementary Files SupportingInformationPolymBulletin.docx Cite Share Download PDF Status: Published Journal Publication published 13 Apr, 2025 Read the published version in Polymer Bulletin → Version 1 posted Editorial decision: Revision requested 08 Feb, 2025 Reviews received at journal 07 Feb, 2025 Reviewers agreed at journal 26 Jan, 2025 Reviewers agreed at journal 25 Jan, 2025 Reviewers agreed at journal 03 Dec, 2024 Reviewers agreed at journal 07 May, 2024 Reviewers invited by journal 02 May, 2024 Editor assigned by journal 17 Jan, 2024 Submission checks completed at journal 16 Jan, 2024 First submitted to journal 15 Jan, 2024 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. 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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-3866997","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":267354573,"identity":"27c134b8-3ef3-4bbb-8915-6b3753d2b6bd","order_by":0,"name":"Yu-Hsiang Yeh","email":"","orcid":"","institution":"National Taipei University of Technology","correspondingAuthor":false,"prefix":"","firstName":"Yu-Hsiang","middleName":"","lastName":"Yeh","suffix":""},{"id":267354574,"identity":"49f85464-c61f-4278-a225-e35e60603af4","order_by":1,"name":"Hsu-I Mao","email":"","orcid":"","institution":"National Taipei University of 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Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Polyamide 612/GF composite material, coupling agent, crystallization rate, crystallization activation energy","lastPublishedDoi":"10.21203/rs.3.rs-3866997/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-3866997/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eAmino silane coupling agents (0, 0.5, 1.0, and 2.0wt %) were added to polyamide 612 (PA612)-based composites reinforced with short glass fibers (GFs) to investigate the effect of the additives on the crystallization kinetics, which were tested using injection molding. The isothermal crystallization activation energies and the kinetic parameters of the crystallization processes of the samples were determined using the Arrhenius, Avrami, and Lauritzen\u0026ndash;Hoffman models. The kinetic calculations revealed that the addition of a silane coupling agent significantly benefitted the GFs in terms of slowing down the isothermal crystallization rate of PA612. Moreover, treating the surface of GF-reinforced PA612 composites with a silane coupling agent induced optimum performance of the injection-molded PA612 parts. This is because the GFs enhanced the mechanical properties while the coupling agent delayed crystallization and improved the GF-substrate adhesion. Moreover, compared with a coupling agent-free PA612/GF composite, the activation energy of crystallization was reduced by a factor of over 1.5 from Δ\u003cem\u003eE\u003c/em\u003e\u003csub\u003ea\u003c/sub\u003e -92.84 to Δ\u003cem\u003eE\u003c/em\u003e\u003csub\u003ea\u003c/sub\u003e -163.55 J/mole with the addition of a coupling agent. The experimental results demonstrated that the PA612/GF composite with 1.0wt % coupling agent displayed the highest absolute value of crystallization activation energy (|Δ\u003cem\u003eE\u003c/em\u003e\u003csub\u003ea\u003c/sub\u003e|).\u003c/p\u003e","manuscriptTitle":"Effect of amino silane coupling agent on crystallization behavior of polyamide 612/glass fiber composites","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-01-19 16:52:56","doi":"10.21203/rs.3.rs-3866997/v1","editorialEvents":[{"type":"communityComments","content":0},{"type":"decision","content":"Revision requested","date":"2025-02-08T06:51:48+00:00","index":"","fulltext":""},{"type":"editorInvitedReview","content":"","date":"2025-02-07T16:36:49+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"33351802407389074764564076729091461256","date":"2025-01-26T17:41:17+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"330439727737739754971589019802709059028","date":"2025-01-25T12:11:24+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"15942849421195019166265348963958737110","date":"2024-12-03T13:36:20+00:00","index":"hide","fulltext":""},{"type":"reviewerAgreed","content":"237279719487634082921767353010192297463","date":"2024-05-07T07:44:47+00:00","index":"hide","fulltext":""},{"type":"reviewersInvited","content":"","date":"2024-05-03T03:48:34+00:00","index":"","fulltext":""},{"type":"editorAssigned","content":"","date":"2024-01-17T11:29:44+00:00","index":"","fulltext":""},{"type":"checksComplete","content":"","date":"2024-01-16T08:54:04+00:00","index":"","fulltext":""},{"type":"submitted","content":"Polymer Bulletin","date":"2024-01-15T15:38:31+00:00","index":"","fulltext":""}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"polymer-bulletin","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"pobu","sideBox":"Learn more about [Polymer Bulletin](http://link.springer.com/journal/289)","snPcode":"289","submissionUrl":"https://submission.nature.com/new-submission/289/3","title":"Polymer Bulletin","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false}}],"origin":"","ownerIdentity":"5b691417-31b2-43d2-a450-fdfa91d080bf","owner":[],"postedDate":"January 19th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"published-in-journal","subjectAreas":[],"tags":[],"updatedAt":"2025-04-14T16:11:46+00:00","versionOfRecord":{"articleIdentity":"rs-3866997","link":"https://doi.org/10.1007/s00289-025-05767-7","journal":{"identity":"polymer-bulletin","isVorOnly":false,"title":"Polymer Bulletin"},"publishedOn":"2025-04-13 16:05:06","publishedOnDateReadable":"April 13th, 2025"},"versionCreatedAt":"2024-01-19 16:52:56","video":"","vorDoi":"10.1007/s00289-025-05767-7","vorDoiUrl":"https://doi.org/10.1007/s00289-025-05767-7","workflowStages":[]},"version":"v1","identity":"rs-3866997","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-3866997","identity":"rs-3866997","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}