1999 Fiscal Year Final Research Report Summary
Study on Morphology and Mechanical Properties of Multiphase Polymers
| Project/Area Number |
10450044
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
KISHIMOTO Kikuo Tokyo Institute of Technology, Professor, 工学部, 教授 (30111652)
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| Co-Investigator(Kenkyū-buntansha) |
MOTOMI Mituso Meiji University, Lecture, 工学部, 専任講師 (70218288)
OMIYA Masaki Tokyo Institute of Technology, Research Associate, 工学部, 助手 (30302938)
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| Project Period (FY) |
1998 – 1999
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| Keywords | Polymer Alloy / ABS Resin / PC / ABS Resin / Morphology / Fracture Toughness / Toughening |
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| Research Abstract |
To investigate the effect of morphology of multiphase polymer on the mechanical properties, Experiments are carried on Polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS) and PC/ABS blends. The yield stress, Possions ratio and tensile strength follow the law of mixture. On the other hand, the maximum value of fracture resistance is obatained for PC/ABS of weight ratios 80/20. For this PC/ABS, ABS particels are distributed in PC matrix. It was also shown that the fracture strain and the fracture plastic strain energy density decrease for PC and PC/ABS blends, but increases for ABS, with the increase of stress triaxiality. It can be concluded that tensile stress triaxiality makes PC brittle, but results in the toughening of ABS and PC/ABS blends, which is significantly different from the conventional metallic materials. It is also shown that rubber content has important effect on the deformation, fracture and toughening of PC/ABS blends.
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