혼합물 실험계획과 다수 반응변수 최적화를 통한 속경화 초저온접착제 개발 사례
A Case Study of Developing Rapid-Hardening Ultra-Low Temperature Adhesives by Mixture Design and Multiple Response Optimization
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초록
Purpose: In this paper we present a case study of developing fast curing adhesives for insulation material of LNG carriers using an extreme vertices design with four mixture components. Three material properties are considered – shear strength, viscosity, and tensile strength. In the optimization experiment, we used hardness instead of tensile strength due to shortage of specimens. Methods: We employ four-factor extreme vertices design with 19 runs and desirability function approach for simultaneously optimizing three responses. After selecting optimal condition of the mixture components, we do confirmation experiments to verify the reproducibility of the optimal condition under manufacturing circumstance. Results: Simultaneous optimal condition for the three responses, that is, shear strength, viscosity, and harness is obtained. At the optimal condition, confirmation experiments are executed in manufacturing circumstance. The variation for the shear strength is not satisfactory, which is due to the variation of the humidity. Conclusion: At the optimal condition three material properties are satisfactory. To reduce the variability for the shear strength, robust design is needed.
Abstract
Purpose: In this paper we present a case study of developing fast curing adhesives for insulation material of LNG carriers using an extreme vertices design with four mixture components. Three material properties are considered – shear strength, viscosity, and tensile strength. In the optimization experiment, we used hardness instead of tensile strength due to shortage of specimens. Methods: We employ four-factor extreme vertices design with 19 runs and desirability function approach for simultaneously optimizing three responses. After selecting optimal condition of the mixture components, we do confirmation experiments to verify the reproducibility of the optimal condition under manufacturing circumstance. Results: Simultaneous optimal condition for the three responses, that is, shear strength, viscosity, and harness is obtained. At the optimal condition, confirmation experiments are executed in manufacturing circumstance. The variation for the shear strength is not satisfactory, which is due to the variation of the humidity. Conclusion: At the optimal condition three material properties are satisfactory. To reduce the variability for the shear strength, robust design is needed.
참고문헌 (5)
- Cornell, J. A., "Experiments with Mixtures: Designs, Models, and the Analysis of Mixture Data, 3rd edi" (2002), Wiley
- Derringer, G., "Simultaneous Optimization of Several Response Variables", Journal of Quality Technology, 12, pp.214~219 (1980)
- Myers, R. H., "Response Surface Methodology: Process and Product Optimization Using Designed Experiments, 3rd Edi" (2009), Wiley
- Snee, R. D., "Extreme Vertices Designs for Linear Mixture Models", Technometrics, 16(3), pp.399~408 (1974)
- A Long-Term Outlook of LNG Ship Demand, "Yang, J. S.", The Export-Import Bank of Korea, ~, pp.Industrial Risk Report 2012-S-05 (2012)