High-strength biomass membrane material and preparation method thereof

The invention belongs to the technical field of packaging material preparation, and particularly relates to a high-strength biomass membrane material and a preparation method thereof. Specifically, casein is used as a substrate raw material of a membrane material, microcrystalline cellulose and tannin are adopted for crosslinking modification treatment of the casein, and a protein membrane with excellent mechanical strength and extension limit is obtained; and the prepared membrane material is degradable, good in comprehensive performance and wide in application range. 本发明属于包装材料制备技术领域，具体涉及一种高强度生物质膜材料及其制备方法；具体是以干酪素作为膜材料的基底原料，通过采用微晶纤维素和单宁对干酪素进行交联改性处理，得到一种具有优异力学强度和延伸极限的蛋白膜，制得的膜材料可降解，综合性能好，应用范围广泛。