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Myungho Lee,You Lim Kim,Mun Sun Maeng,Youn Suk Lee 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10
The remaining residue in the package after consuming the food products has recently been a major issue in the food industry due to the food waste or loss, and the recycling difficulty of packaging materials. Most liquid foods can easily adhere to the inner surface of the container and remain it leading to food-wasting. Superhydrophobic (SHPC) surface of the package may reduce the remaining portion of the residual liquid food. Surface coating on the package with waxes as the food safety compounds is an eco-friendly treatment of low surface energy hydrocarbons for providing SHPC properties. However, use of only waxes for the surface coating is limited due to the low adhesive forces and thermally unstable for hot food application. This study focuses on the development of liquid food sticky resistance polymeric film with SHPC properties. The coating package structure is fabricated with waxes and silica aerogel via spraying method on LLDPE film. SHPC property of the fabricated film is evaluated using static contact angle and durability test. The results show that the aerogel/wax coated films represent good SHPC properties which have up to 150o contact angle compared to the control.