Measurement of Nonlinear Mechanical Properties of Surfactant-Added Poly(dimethylsiloxane)
スポンサーリンク
概要
- 論文の詳細を見る
This paper presents a measurement of the nonlinear mechanical property of the surfactant-added poly(dimethylsiloxane) (PDMS) elastomer. The tension test samples with the different concentrations of the surfactant were prepared using a simple mixing, coating, curing, and cutting process. A 10 times cyclic tension test with a fixed magnitude of applied strain and a single-pull-to-failure tension test were sequentially performed with a micro-tensile tester at room temperature. Compared with the pure PDMS, the surfactant-added PDMS was more flexible and its yield strain also greatly increased. From the measured stress--strain relationship, the stress softening and the residual strain was observed in the first cyclic tension tests. Such a hysteresis was highly related with the concentration of the surfactant in preparing PDMS film. As the concentration of the surfactant increased, the hysteresis increased remarkably. From second cyclic tension test, a hysteresis dramatically reduced and the strain--stress curves were almost converged in 10 times cyclic test. Three nonlinear mechanical models like a Neo--Hookean, Mooney--Rivlin, and Ogden were computed from the experimentally measured stress--strain data. The Ogden model for the surfactant-added PDMS showed a good agreement with the experimental data. In the case of the Neo--Hookean and Mooney--Rivlin models, they could be preferable for the structural analysis of the micro device with the surfactant-added PDMS in the small strain region. This could provide the useful and reasonable nonlinear mechanical models of the surfactant-added PDMS for rapid computational prototyping from the hydrophilic PDMS.
- 2012-06-25
著者
-
Jeong Ok
Department of Biomedical Engineering, Inje University, Gimhae, Gyungnam 621-749, Korea
-
Jeong Ok
Department of Biomedical Engineering, Inje University, Gimhae, Gyungnam 621-749, Republic of Korea
-
Kim Hea
Department of Biomedical Engineering, Inje University, Gimhae, Gyungnam 621-749, Republic of Korea
関連論文
- Measurement of Nonlinear Mechanical Properties of Surfactant-Added Poly(dimethylsiloxane)
- Fabrication of Microfluidic Platform with Optimized Fluidic Network toward On-Chip Parallel Systematic Evolution of Ligands by Exponential Enrichment Process
- Fabrication of Peristaltic Micropump Driven by a Single-Phase Pneumatic Force
- Fabrication of a Wrinkled Surface on Poly(dimethylsiloxane) Using a Thermal Curing Process
- Fabrication of a Wrinkled Surface on Poly(dimethylsiloxane) Using a Thermal Curing Process