摘要
以绿色、可生物降解的海藻酸钠(Sodium alginate,SA)、羧甲基纤维素(Carboxymethylcellulose,CMC)及无氟聚二甲基硅氧烷(Polydimethylsiloxane,PDMS)作为防油防水功能成分,通过3种成分的复合制备了一种防油防水的纸基材料。研究了SA/CMC/PDMS双层涂层对纸张热稳定性、力学性能、防油防水性能和水蒸气透过性的影响。研究结果表明:涂布纸表现出优异的拉伸强度((55.1±2.0) MPa)、高疏水性(水接触角为116°,0 s)、防油性(85°,0 s;耐油脂评级为12/12)和优秀的防水性能(409 g/(m^(2)·d))。将烤鸡腿、炸薯条和可乐放在涂布纸上,研究SA/CMC/PDMS双层涂布纸的防油防水性能,结果表明涂层可以阻隔食物中的油和水对纸张的浸透。该研究成果可为开发食品包装中防油防水的无氟材料提供一定的理论支撑和实践参考。
In this study,green and biodegradable materials(sodium alginate(SA),carboxymethylcellulose(CMC),and non-fluorinated polydimethylsiloxane(PDMS))were used as functional ingredients to impart oil and water repellency.An oil-and water-repellent paper-based packaging material was prepared through the combined application of these three components as a double-layer coating.The effects of the SA/CMC/PDMS double-layer coating on the thermal stability,mechanical properties,hydrophobicity,oil resistance,and water vapor permeability of the paper were systematically investigated.The results showed that the coated paper exhibited excellent tensile strength((55.1±2.0)MPa),high hydrophobicity(116°,0 s for water contact angle(WCA)),strong oil resistance(85°,0 s,with an oil and grease resistance rating of 12/12),and water repellent properties(409 g/(m 2·d)).To evaluate practical application,grilled chicken thighs,French fries,and cola were placed on the coated paper.The coatings effectively prevented the penetration of oil and water from the food into the paper.This study provides valuable insights into the development of fluorine-free materials with water-and oil-barrier properties for use in food packaging.
作者
林杨
吴海超
季剑锋
邵平
LIN Yang;WU Haichao;JI Jianfeng;SHAO Ping(College of Food Science and Technology,Zhejiang University of Technology,Hangzhou 310014,China;Zhejiang Hengda New Material Co.,Ltd.,Quzhou 324401,China;Eco-Industrial Innovation Institute ZJUT,Quzhou 324400,China)
出处
《浙江工业大学学报》
北大核心
2026年第2期135-144,共10页
Journal of Zhejiang University of Technology
基金
国家自然科学基金资助项目(31571833
32072149)。
关键词
防油防水
涂布纸
无氟
海藻酸钠/羧甲基纤维素
聚二甲基硅氧烷
oil/water barrier
coated paper
fluorine-free
sodium alginate/carboxymethyl cellulose
polydimethylsiloxane
