In this study, high heat sealing temperature of cast polypropylene films for packaging secondary battery cathode materials, contamination of cathode materials due to low molecular weight additives, and the adhesion of fine metal foreign matter adsorption due to static electricity generation were improved to 8.5 N/25mm in multi-layer co-extrusion technology and non-migration 3-layer polyethylene PE-based composite film. securing a core layer tensile strength of 22.8 MPa and a Vicat softening point of 132℃ securing 40.5 N/25mm based on metallocene PE of the Skin-2 layer, a surface resistance rate of 5.73×1012Ω/sq, and a friction coefficient of 0.88 and significantly reducing adsorption of magnetic foreign substances to less than 5.3 to prove high-temperature heat sealing and non-migration 3-layer polyethylene PE-based composite film that can confirm strength retention rate of 95% or more even after exposure to high temperature and high humidity environment.
목차
Abstract 1. 서론 2. 관련 연구 2.1 3-Layer 필름의 층별 기능성 설계 이론 2.2 첨가제 최소화 배합 기술 2.3 철 이물질 유입 저감 공정 기술 3. 결과 및 고찰 3.1 정전기 방지용 표면저항률 성능 개선 3.2 접착, 실링 강도와 마찰 특성의 최적화 3.3 3-Layer 필름의 시험평가 및 신뢰성 검증 3. 결론 References