http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
TiO2 필러를 포함하는 PEO/PMMA 고분자 복합체 전해질의 이온전도도 및 결정화도
이륜규 ( Lyung Yu Lee ),박수진 ( Soo Jin Park ),김석 ( Seok Kim ) 한국화학공학회 2011 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.49 No.6
In this work, polymer composite electrolytes were prepared by a blend of pol (methyl methacrylate)(PMMA) and poly(ethylene oxide) (PEO) as a polymer matrix, propylene carbonate as a plasticizer, LiClO4 as a salt, and by containing a different content of TiO2, by using the solution casting method. The crystallinity and ionic conductivity of the polymer electrolytes was evaluated using X-ray diffraction(XRD) and AC impedance method, respectively. The morphology of composite electrolyte film was analyzed by SEM method. From the experimental results, by increasing the TiO2 content, crystallinity of PEO was reduced, and ionic conductivity was increased. In particular, the ionic conductivity was dependent on the content of TiO2 and showed the highest value 15 wt%. However, when TiO2 content exceeds 15 wt%, the ionic conductivity was decreased. According to the surface morphology, the ionic conductivity was decreased because the polymer composite electrolytes showed a heterogenous morphology of fillers due to immiscibility or aggregation of the filler within the polymer matrix.