{"title":"Dynamic mechanical and viscoelastic properties of glass fiber reinforced photopolymer composite fabricated using vat-photopolymerization additive technique: Influence of filler volume fraction","authors":"","doi":"10.1016/j.jmapro.2024.08.067","DOIUrl":null,"url":null,"abstract":"<div><p>The Vat-Photopolymerization (VPP) additive manufacturing process excels in producing intricate components via layering. This study employs an inter-stage stirring method during layering to create composite parts, especially in bottom-up VPP setups with high filler density. Samples with 2–8 % short glass fiber volume fractions in a photopolymer matrix are manufactured using Digital Light Processing-based VPP. Dynamic Mechanical Analysis is utilized to examine the viscoelastic properties and heat deflection temperature (HDT) of these photopolymer composites (PPC) under static and oscillatory conditions, generating a time-temperature-superposition (TTS) master curve for storage modulus (<em>E'</em>). Results show the highest glass transition temperature (<em>T</em><sub><em>g</em></sub> ∼ 60 °C), HDT ∼ 85 °C, and <em>E'</em> ∼ 4500 MPa in the 4 % PPC under preloaded static stress. Analysis reveals efficient force transfer in glassy and rubbery zones, indicating improved moduli with 4 % PPC. A Prony series material model accurately replicates the TTS-derived master curve, suggesting enhanced short- and long-term mechanical properties.</p></div>","PeriodicalId":16148,"journal":{"name":"Journal of Manufacturing Processes","volume":null,"pages":null},"PeriodicalIF":6.1000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Manufacturing Processes","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1526612524008983","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0
Abstract
The Vat-Photopolymerization (VPP) additive manufacturing process excels in producing intricate components via layering. This study employs an inter-stage stirring method during layering to create composite parts, especially in bottom-up VPP setups with high filler density. Samples with 2–8 % short glass fiber volume fractions in a photopolymer matrix are manufactured using Digital Light Processing-based VPP. Dynamic Mechanical Analysis is utilized to examine the viscoelastic properties and heat deflection temperature (HDT) of these photopolymer composites (PPC) under static and oscillatory conditions, generating a time-temperature-superposition (TTS) master curve for storage modulus (E'). Results show the highest glass transition temperature (Tg ∼ 60 °C), HDT ∼ 85 °C, and E' ∼ 4500 MPa in the 4 % PPC under preloaded static stress. Analysis reveals efficient force transfer in glassy and rubbery zones, indicating improved moduli with 4 % PPC. A Prony series material model accurately replicates the TTS-derived master curve, suggesting enhanced short- and long-term mechanical properties.
期刊介绍:
The aim of the Journal of Manufacturing Processes (JMP) is to exchange current and future directions of manufacturing processes research, development and implementation, and to publish archival scholarly literature with a view to advancing state-of-the-art manufacturing processes and encouraging innovation for developing new and efficient processes. The journal will also publish from other research communities for rapid communication of innovative new concepts. Special-topic issues on emerging technologies and invited papers will also be published.