온도에 따른 고분자전해질막의 기계적 특성에 관한 연구

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 33; no. 5; pp. 566 - 573
• Main Authors: 어준우(JUNWOO EO), 김승환(SEUNGHWAN KIM), 서영진(YOUNGJIN SEO), 고형종(HYUNGJONG KO), 황철민(CHULMIN HWANG), 정영관(YOUNGGUAN JUNG)
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 2022
• Subjects: Polymer electrolyte membrane(고분자전해질막); Tensile(인장); Nafion(나피온); Crystalline(결정질); Glass transition temperature(유리전이온도); Heat treatment(열처리); Amorphous(비정질)
• ISSN: 1738-7264; 2288-7407
• DOI: 10.7316/KHNES.2022.33.5.566

In this study, the mechanical properties of the polymer electrolyte membrane according to the temperature were studied. The test specimens of polymer electrolyte membrane were heat treated at 40℃, 60℃, 80℃, 100℃, and 120℃, and then the tensile tests were performed. As results of this study, the residual stress of the polymer electrolyte membrane was removes by the heat treatment and the elastic modulus decreased due to the decrease in internal energy. In addition, in the plastic region, the mechanical properties and crystallization rate of the polymer electrolyte membrane increased in proportion according to increase of the heat treatment temperature.