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Mechanical properties and water absorption behaviour of PLA and PLA/wood composites prepared by 3D printing and injection moulding.

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Title: Mechanical properties and water absorption behaviour of PLA and PLA/wood composites prepared by 3D printing and injection moulding.
Authors: Ecker, Josef Valentin1 (AUTHOR) Sirjiv@gmail.com, Haider, Andreas1 (AUTHOR) a.haider@wood-kplus.at, Burzic, Ivana1 (AUTHOR) i.burzic@kplus-wood.at, Huber, Axel1 (AUTHOR) axel-huber@gmx.at, Eder, Gerhard2 (AUTHOR) gerhard.eder@jku.at, Hild, Sabine2 (AUTHOR) sabine.hild@jku.at
Source: Rapid Prototyping Journal. 2019, Vol. 25 Issue 4, p672-678. 7p.
Subjects: Engineered wood, Three-dimensional printing, Injection molding, Water storage, Differential scanning calorimetry, Wood preservatives
Abstract: Purpose: This papers aims to study the influence of water absorption on the mechanical properties of poly lactic acid (PLA) and PLA/Wood composites. Virgin PLA and PLA/Wood double-bone-shaped specimens were prepared by two methods: injection moulding and 3D printing. The results were compared to each other and showed the influence of the production method on the properties of the produced parts. Design/methodology/approach: Morphology studies were done by scanning electron microscopy (SEM) from fracture surfaces of tensile and notched impact specimens of all samples. Tensile properties were analysed by the production and testing of dog-bone-shaped samples. Heat deflection temperature (HDT) was tested, as also was the crystallinity of the tested samples by differential scanning calorimetry. Findings: The values for notched impact strength were higher upon water uptake in the case of injection-moulded specimens, which was not the case with 3D-printed specimens. Tensile properties of the specimens produced by both methods were reduced after water absorption tests. Values of the HDT were also lower after water absorption tests studied for both processing methods. Originality/value: Morphology studies were done by SEM from fracture surfaces of tensile as well as notched impact specimens of injection-moulded and 3D-printed samples. The effect of water storage on various samples was tested. The two different production technologies were compared to each other owing to their influence of water storage. This study also dealt with NFC compounds and produced NFC composites and the influence of water storage on these samples. [ABSTRACT FROM AUTHOR]
Copyright of Rapid Prototyping Journal is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 137433852
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PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Mechanical properties and water absorption behaviour of PLA and PLA/wood composites prepared by 3D printing and injection moulding.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Ecker%2C+Josef+Valentin%22">Ecker, Josef Valentin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Sirjiv@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Haider%2C+Andreas%22">Haider, Andreas</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.haider@wood-kplus.at</i><br /><searchLink fieldCode="AR" term="%22Burzic%2C+Ivana%22">Burzic, Ivana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> i.burzic@kplus-wood.at</i><br /><searchLink fieldCode="AR" term="%22Huber%2C+Axel%22">Huber, Axel</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> axel-huber@gmx.at</i><br /><searchLink fieldCode="AR" term="%22Eder%2C+Gerhard%22">Eder, Gerhard</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> gerhard.eder@jku.at</i><br /><searchLink fieldCode="AR" term="%22Hild%2C+Sabine%22">Hild, Sabine</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> sabine.hild@jku.at</i>
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  Data: <searchLink fieldCode="JN" term="%22Rapid+Prototyping+Journal%22">Rapid Prototyping Journal</searchLink>. 2019, Vol. 25 Issue 4, p672-678. 7p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Engineered+wood%22">Engineered wood</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+printing%22">Three-dimensional printing</searchLink><br /><searchLink fieldCode="DE" term="%22Injection+molding%22">Injection molding</searchLink><br /><searchLink fieldCode="DE" term="%22Water+storage%22">Water storage</searchLink><br /><searchLink fieldCode="DE" term="%22Differential+scanning+calorimetry%22">Differential scanning calorimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Wood+preservatives%22">Wood preservatives</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: This papers aims to study the influence of water absorption on the mechanical properties of poly lactic acid (PLA) and PLA/Wood composites. Virgin PLA and PLA/Wood double-bone-shaped specimens were prepared by two methods: injection moulding and 3D printing. The results were compared to each other and showed the influence of the production method on the properties of the produced parts. Design/methodology/approach: Morphology studies were done by scanning electron microscopy (SEM) from fracture surfaces of tensile and notched impact specimens of all samples. Tensile properties were analysed by the production and testing of dog-bone-shaped samples. Heat deflection temperature (HDT) was tested, as also was the crystallinity of the tested samples by differential scanning calorimetry. Findings: The values for notched impact strength were higher upon water uptake in the case of injection-moulded specimens, which was not the case with 3D-printed specimens. Tensile properties of the specimens produced by both methods were reduced after water absorption tests. Values of the HDT were also lower after water absorption tests studied for both processing methods. Originality/value: Morphology studies were done by SEM from fracture surfaces of tensile as well as notched impact specimens of injection-moulded and 3D-printed samples. The effect of water storage on various samples was tested. The two different production technologies were compared to each other owing to their influence of water storage. This study also dealt with NFC compounds and produced NFC composites and the influence of water storage on these samples. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Rapid Prototyping Journal is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1108/RPJ-06-2018-0149
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      – Code: eng
        Text: English
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        PageCount: 7
        StartPage: 672
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      – SubjectFull: Engineered wood
        Type: general
      – SubjectFull: Three-dimensional printing
        Type: general
      – SubjectFull: Injection molding
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      – SubjectFull: Water storage
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      – SubjectFull: Differential scanning calorimetry
        Type: general
      – SubjectFull: Wood preservatives
        Type: general
    Titles:
      – TitleFull: Mechanical properties and water absorption behaviour of PLA and PLA/wood composites prepared by 3D printing and injection moulding.
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            NameFull: Ecker, Josef Valentin
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            NameFull: Haider, Andreas
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              M: 05
              Text: 2019
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              Y: 2019
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              Value: 25
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