인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
This paper presents a novel and versatile fabrication method for the preparation of poly(vinyl alcohol) (PVA) composites containing completely dispersed multi-walled carbon nanotubes (MWNTs). Prior to mixing with PVA, the MWNTs were debundled by mixing with sugar syrup. The predispersed MWNTs were washed with water and filtered to remove the sugar syrup. Subsequently, they were mixed with PVA in water, followed by a solution casting process. Microscopic images of the PVA composites revealed that the dispersion was significantly better than those prepared with crude nanotubes. The dynamic viscosity of the PVA solutions increased as the MWNT content increased. Specifically, an abrupt increase in the yield stress was observed in the Casson plot with MWNT content between 5 and 10 wt%. Up to 1 wt% MWNT loading, there was no noticeable effect in the thermal stability, while further addition lowered the degradation temperature. The stress-strain curves showed a more pronounced yield and post-yield drop with increasing MWNT content up to 1 wt% loading, whereas further addition of MWNTs weakened the yield behavior. At only 1 wt% loading, the yield strength corresponded to the breaking strength. The tensile strength and the modulus of the PVA composites increased up to 1 wt% nanotube loading and decreased at higher nanotube contents. In addition, the elongation at break of the PVA composites decreased at a nanotube loading of ${\geq}0.5wt%$.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
