Kyung Hee University · Materials Science
Jong-Whan Rhim 교수의 연구실은 천연 생분해성 고분자 기반의 친환경 포장재 개발을 핵심으로 하며, 특히 콜로이드 및 나노소재 기반의 나노복합재를 활용해 기계적 강도와 수분·가스 차단성능을 향상시키는 데 주력하고 있습니다. 다양한 천연 고분자(예: 콜라겐, 대두단백질, 셀룰로오스 등)와 나노입자(예: 마그네사이트, 은 나노입자, 지질 등)를 조합하여 기능성 포장 필름을 설계하고 있으며, 실용성과 환경친화성을 동시에 확보하는 데 목표를 두고 있습니다. 특히 생분해성 필름의 기계적 성능을 높이고자 다층 구조나 나노복합화 기술을 응용한 혁신적인 포장 솔루션 개발이 중심 연구 주제입니다.
Figures are computed from collected data and may differ slightly.
Four different types of chitosan-based nanocomposite films were prepared using a solvent-casting method by incorporation with four types of nanoparticles, that is, an unmodified montmorillonite (Na-MMT), an organically modified montmorillonite (Cloisite 30B), a Nano-silver, and a Ag-zeolite (Ag-Ion). X-ray diffraction patterns of the nanocomposite films indicated that a certain degree of intercalation was formed in the nanocomposite films, with the highest intercalation in the Na-MMT-incorporate
Concerns on environmental waste problems caused by non-biodegradable petrochemical-based plastic packaging materials as well as the consumer's demand for high quality food products has caused an increasing interest in developing biodegradable packaging materials using annually renewable natural biopolymers such as polysaccharides and proteins. Inherent shortcomings of natural polymer-based packaging materials such as low mechanical properties and low water resistance can be recovered by applying
Multilayer film composed of a soy protein isolate (SPI) inner layer and poly(lactide) (PLA) outer layers were prepared by a simple solvent casting method in order to exploit the advantageous properties of both film materials. Tensile strength and elongation at break of the multilayer film were 17.0 ± 0.3 MPa and 176.9 ± 27.9%, respectively. Especially the tensile strength of the multilayer film increased more than 5-fold compared with that of the SPI film. The mechanical properties of the multil
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