| Project/Area Number |
10650100
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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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 | Kanazawa Institute of Technology |
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Principal Investigator |
SHIMBO Minoru Professor, Faculty of Engineering, Kanazawa Institute of Technology, 工学部, 教授 (70142552)
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| Co-Investigator(Kenkyū-buntansha) |
YAMABE Masashi Professor, Faculty of Engineering, Kanazawa Institute of Technology, 工学部, 教授 (70288265)
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| Project Period (FY) |
1998 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1999: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1998: ¥2,400,000 (Direct Cost: ¥2,400,000)
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| Keywords | Foam plastics / Microcellular Plastics / Supper critical fluid gas / Processing Technology |
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| Research Abstract |
Processing technology was studied basically for sub-micron cellular plastics in this paper. The continuous processing system was constructed using extruder and was verified propriety of this system. In order to investigate cell morphology and cell structure, microcellular polystyrene samples were produced under various conditions by the above processing system. Concretely, foaming die, which can be varied pressure in die, was prepared. The effect of pressure drop in die on cell morphology of microcellular plastics was examined using this changeable die. In addition, the effect of blowing agent contents, temperature in die and besides additioner on that of microcellular plastics was also investigated.
Using this system, polystyrene resin were foamed and gotten samples having relative close and uniform cell structure. The cell sizes, cell density and foam magnification were affected strongly on COィイD22ィエD2 contents, pressure and temperature in die. There was no effect of lead stearate as an additioner on cell size but calcium carbonate affected considerably on cell size. Sub-micron cellular plastic processing by extruder can be foamed fine cell structure by controlling pressure in die and selecting additioner.
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