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J. Ocean Eng. Technol. 2006;20(2):52-58.    

Durability Test on E-Glass Fiber Reinforced Composites of Strand Type in Specific Environment
Lee Seong-Ryul;Kim By-An;Moon Chang-Kwon;
Division of Materials Science and Engineering, Pukyong National University;Division of Materials Science and Engineering, Pukyong National University;Division of Materials Science and Engineering, Pukyong National University;
스트란드형 유리섬유 강화 복합재료의 특수환경에 대한 내구성 시험
이승렬;김부안;문창권;
부경대학교 신소재공학부;부경대학교 신소재공학부;부경대학교 신소재공학부;
© 2006 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Specific Environmental Condition, Durability, E-glass fiber/vinylester resin composites E-glass/vinylester resin, Interface, Strand type, Weight gain, Tensile strength
핵심용어: 특수환경조건, 내구성, 복합재료, 계면, 스트판드형, 무게변화튤, 인장망도
Abstract
The effect of various environmental conditions on the durability of E-glass fiber/vinylester resin composites have been investigated using the tensile test specimen of strand type. It was found that the durability test method performed by the stand type specimen was more convenient and reliable than other conventional test method. The weight gains increased with the immersion time in both water and alkaline solution, and the Weight gains at $50^{circ}C$. were much bigger than those at $20^{circ}C$ in both conditions. The tensile strength decreased with the pass of immersion time in all aqueous solution, and the tensile strength at $80^{circ}C$ in alkaline solution decreased very steeply at beginning of immersion time. The decrement of tensile strength according to the immersion time in various environmental conditions was mainly caused by the degradation of interface and the damage of glass fiber surface.


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