2013 Fiscal Year Final Research Report
Creep Behavior of Polymer Thin Films Studied by Buldge Test
| Project/Area Number |
24655104
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Polymer chemistry
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| Research Institution | Kyushu University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | バルジ試験 / 高分子薄膜 / 破裂強度 |
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| Research Abstract |
The bulge testing technique can determine the mechanical properties of polymer thin films by measuring the deformation that forms in response to the application of a controlled pressure to a thin film circular window. The bulge testing for polymer thin film was designed and was applied to various polymer thin films. By comparing the pressure-displacement relation with a simple mechanical model, the elastic modulus and rupture stress in the thin film can be measured. Large deformation at rupture was clearly observed by buldge test. Though the bulge testing technique is quite effective, this technique is not routinely used because of difficulty including specimen mounting and precise bulge height measurement.
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