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
This study investigates the enhancement of poly(vinyl chloride) (PVC) properties through the incorporation of zinc oxide (ZnO) nanoparticles and chitosan to improve its resistance to UV-induced photodegradation. The nanocomposites were synthesized by blending ZnO and chitosan with PVC, followed by comprehensive characterization using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), atomic force microscopy (AFM), and Fourier transform infrared (FTIR). XRD confirmed the crystalline structure of ZnO-chitosan nanoparticles with a crystal size of 25.38 nm, while FE-SEM analysis revealed an average grain size of 76.68 nm, indicating the successful formation of nanoscale materials. AFM demonstrated a significant reduction in surface roughness and photodegradation in the nanocomposite films compared to pure PVC. FTIR analysis revealed lower photodegradation indices (IPO, ICO, IOH) in the nanocomposites across UV irradiation durations of 0, 50, 100, 150, 200, 250, and 300 h, indicating a delayed formation of carbonyl and hydroxyl groups. Weight loss and viscosity measurements further confirmed enhanced UV stability, attributed to the synergistic effect of ZnO's UV-shielding properties and chitosan's radical-scavenging capabilities. These results highlight the potential of ZnO-chitosan nanocomposites to significantly extend the service life of PVC in harsh environments.
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.
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UCI(KEPA) : I410-151-25-02-092506387