2009 Fiscal Year Final Research Report
High Performance Bioresorbable Plastics Composite with Controlling of Higher Order Structures
| Project/Area Number |
20760074
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
KOBAYASHI Satoshi Tokyo Metropolitan University, 理工学研究科・機械工学コース, 准教授 (80326016)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 材料設計 / プロセス / 物性 / 評価 |
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| Research Abstract |
In order to improve the mechanical properties of injection molded PLA, it was used the compressive molding at high pressure and comparatively at low temperature, called "forging process". Forged PLA has higher strength and higher elastic modulus than those of injection molded PLA. We made PLA screws with forging process or machining process. Mechanical properties of PLA screws were estimated by pull-out, shear in the diameter direction and twist tests. Screws forged at 70℃ has best pull-out and shear strength in the diameter direction. There are no differences in shear strength calculated from torque test.
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