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농학석사학위논문 폴리페닐렌설파이드복합재료의기계적및열적 특성에영향을미치는유리섬유 환원된 그래핀옥사이드복합보강재에관한연구 The combined effect of glass fiber/reduced graphene oxide reinforcement on the mechanical and thermal properties of polyphenylene sulfide composites. 년 월 서울대학교대학원바이오시스템 소재학부바이오소재공학전공변주희
폴리페닐렌설파이드복합재료의기계적및열적 특성에영향을미치는유리섬유 환원된 그래핀옥사이드복합보강재에관한연구 The combined effect of glass fiber/reduced graphene oxide reinforcement on the mechanical and thermal properties of polyphenylene sulfide composites. 지도교수박종신 이논문을농학석사학위논문으로제출함 년 월 서울대학교대학원바이오시스템 소재학부바이오소재공학전공변주희변주희의석사학위논문을인준함 년 월
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Abstract The combined effect of glass fiber/reduced graphene oxide reinforcement on the mechanical and thermal properties of polyphenylene sulfide composites. Juhee Byeon Department of Biosystems & Biomaterials Science and Engineering The Graduate School Seoul National University These days, a research that is related to automobile and advanced electronic materials has been concentrated on weight reduction of materials. In particular, a competition in the development of lightweight materials is intensifying due to various issues such as responding to environmental regulations and electric cars. In addition, various materials such as light metal materials are being replaced by carbon-based materials and high-performance plastic materials. In this study, Polyphenylene Sulfide/ Silane treated glass fiber/ Reduced graphene oxide composites were prepared by melt-compounding method (Twin screw extreuder) in order to determine the possibility of using silane treated glass fiber and reduced graphene oxide reinforcements in the polymer
-based composite. The effects of reduced graphene oxide, glass fiber reinforcement content on the thermal conductivity and mechanical properties of the PPS/SGF/RGO composites were investigated. Also, glass fiber and reduced graphene oxide were silane treated using APTES silane coupling agents. The structural changes of the reduced graphene oxide are observed by Raman spectroscopy and FT-IR. The qualitative and quantitative analysis of functional groups on the glass fiber and reduced graphene oxide were confirmed by XPS. And then, Thermal stabilities and Thermal conductivities were analyzed by Thermogravimetric analysis and C-Therm TCi. Mechanical properties were examined by Universal Testing Machine(UTM). Surface properties were investigated by Scanning electron microscopy(sem). The result showed that the addition of reduced graphene oxide filler to the polyphenylene sulfide matrix led to a large increase in thermal conductivity of the PPS/SGF/RGO composites and the optimum ratio of reduced graphene oxide was found to be 3% as far as the thermal properties is concerned. Moreover, the addition of the glass fiber to the Polyphenylene sulfide matrix led to a increase in mechanical properties. These results indicated that the thermal properties as well as the mechanical properties of PPS-based composites were enhanced by adding Silane treated glass fiber and reduced graphene oxide in the composite materials Keywords : Poly(phenylene sulfide), Reduced graphene oxide, Glass fiber, Silane treated glass fiber, Polymer matrix composites, Thermal properties, Mechanical properties. Student Number : 2016-21474