Effect of molding parameters on the properties of PP/PP sandwich injection moldings
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| Title: | Effect of molding parameters on the properties of PP/PP sandwich injection moldings |
|---|---|
| Authors: | Nagaoka, T.1, Ishiaku, U.S.1 umaru@kit.ac.jp, Tomari, T.2, Hamada, H.1, Takashima, S.1 |
| Source: | Polymer Testing. Dec2005, Vol. 24 Issue 8, p1062-1070. 9p. |
| Subjects: | Injection molding of metals, Gums & resins, Temperature measurements, Mechanical properties of metals, Volumetric analysis, Molding (Founding) |
| Abstract: | Abstract: The basic characteristics of a sandwich injection molded product depend on the properties of the respective resins that comprise the skin and core layers, and the skin/core resin volume ratio. The characteristics of the core layer resin and the skin/core ratio in particular may vary depending on the injection molding conditions. This report considers the influences that the molding conditions such as injection speed, cylinder temperature, and mold temperature confer on the mechanical properties of the sandwich moldings. The study employed, skin/core resin combinations involving similar and dissimilar materials i.e. homopolymer PP/homopolymer PP and homopolymer PP/copolymer PP, respectively. It was demonstrated that core cylinder temperature and mold temperature could be used to adjust the mechanical properties of sandwich injection moldings. In the case of single material sandwich moldings, injection speed seemed to play no significant role, even though it was clearly demonstrated that core volume increases with injection speed. However, core injection speed plays a significant role in the dual material system by lowering or increasing the mechanical strength of moldings as the case may be. Thus, the dormant or active role of injection speed depending on the material system has been highlighted. [Copyright &y& Elsevier] |
| Copyright of Polymer Testing is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 19184783 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Effect of molding parameters on the properties of PP/PP sandwich injection moldings – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Nagaoka%2C+T%2E%22">Nagaoka, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ishiaku%2C+U%2ES%2E%22">Ishiaku, U.S.</searchLink><relatesTo>1</relatesTo><i> umaru@kit.ac.jp</i><br /><searchLink fieldCode="AR" term="%22Tomari%2C+T%2E%22">Tomari, T.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hamada%2C+H%2E%22">Hamada, H.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Takashima%2C+S%2E%22">Takashima, S.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Polymer+Testing%22">Polymer Testing</searchLink>. Dec2005, Vol. 24 Issue 8, p1062-1070. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Injection+molding+of+metals%22">Injection molding of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Gums+%26+resins%22">Gums & resins</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+measurements%22">Temperature measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+properties+of+metals%22">Mechanical properties of metals</searchLink><br /><searchLink fieldCode="DE" term="%22Volumetric+analysis%22">Volumetric analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Molding+%28Founding%29%22">Molding (Founding)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: The basic characteristics of a sandwich injection molded product depend on the properties of the respective resins that comprise the skin and core layers, and the skin/core resin volume ratio. The characteristics of the core layer resin and the skin/core ratio in particular may vary depending on the injection molding conditions. This report considers the influences that the molding conditions such as injection speed, cylinder temperature, and mold temperature confer on the mechanical properties of the sandwich moldings. The study employed, skin/core resin combinations involving similar and dissimilar materials i.e. homopolymer PP/homopolymer PP and homopolymer PP/copolymer PP, respectively. It was demonstrated that core cylinder temperature and mold temperature could be used to adjust the mechanical properties of sandwich injection moldings. In the case of single material sandwich moldings, injection speed seemed to play no significant role, even though it was clearly demonstrated that core volume increases with injection speed. However, core injection speed plays a significant role in the dual material system by lowering or increasing the mechanical strength of moldings as the case may be. Thus, the dormant or active role of injection speed depending on the material system has been highlighted. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Polymer Testing is the property of Elsevier B.V. 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: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.polymertesting.2005.04.003 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 1062 Subjects: – SubjectFull: Injection molding of metals Type: general – SubjectFull: Gums & resins Type: general – SubjectFull: Temperature measurements Type: general – SubjectFull: Mechanical properties of metals Type: general – SubjectFull: Volumetric analysis Type: general – SubjectFull: Molding (Founding) Type: general Titles: – TitleFull: Effect of molding parameters on the properties of PP/PP sandwich injection moldings Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Nagaoka, T. – PersonEntity: Name: NameFull: Ishiaku, U.S. – PersonEntity: Name: NameFull: Tomari, T. – PersonEntity: Name: NameFull: Hamada, H. – PersonEntity: Name: NameFull: Takashima, S. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2005 Type: published Y: 2005 Identifiers: – Type: issn-print Value: 01429418 Numbering: – Type: volume Value: 24 – Type: issue Value: 8 Titles: – TitleFull: Polymer Testing Type: main |
| ResultId | 1 |
