인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
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.
초록·키워드
Abstract Halloysite nanotubes (HNT), as naturally occurring anisotropic nanofillers, were incorporated into a commercial two-component (2C) polyurethane (PU) system to develop multifunctional nanocomposites for electroinsulating applications. The nanocomposites were prepared via the method of direct dispersion. Dielectric, thermal, and mechanical properties were systematically analyzed at weight concentrations of 2 wt%, 5 wt%, and 10 wt% of HNT in the PU matrix. At 5 wt% HNT, an optimal balance was observed: volume resistivity increased nearly 17-fold, dielectric permittivity was enhanced through Maxwell–Wagner–Sillars interfacial polarization, and thermal conductivity rose modestly while maintaining high mechanical integrity. Broadband dielectric spectroscopy, modeled using the Havriliak–Negami function, showed broadened relaxation dynamics associated with filler–matrix interfaces. Incorporation of 10 wt% HNT caused agglomeration, reducing property uniformity. The results demonstrate that controlled integration of HNT into cold-curing 2C PU systems yields cost-effective, sustainable, and high-performance nanodielectrics, advancing their potential use in high-voltage insulation, aerospace encapsulation, and battery module safety.
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.