UV-Cured Biodegradable Methacrylated Starch-Based Coatings
Source abstract
Abstract
Promising UV-curable starch-based coatings were fabricated by utilizing methacrylated starch. The aqueous methacrylated starch solution was cast on a glass substrate, and UV-cured after drying. The efficiency of UV-curing process was monitored with gel percentage measurements. The thermal and mechanical properties of the fabricated UV-cured coatings were investigated through differential scanning calorimetry and tensile test and compared with the starch-based uncured casted coatings. A complete characterization of the surface properties was performed by means of pencil hardness, adhesion, solvent resistance, and surface tension measurements. The cross-linking by UV-curing significantly enhanced the mechanical and surface properties of the coating. The effect of UV-curing on the biodegradability of the coating was evaluated by following the enzymatic degradation by α-amylase by determining the amount of glucose and maltose released from the coatings. UV-cured methacrylated starch based coating with promising material and surface properties and retained biodegradation potential was demonstrated.
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Research context
OpenAlex topics: biodegradable polymer synthesis and properties · Nanocomposite Films for Food Packaging · Microplastics and Plastic Pollution
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Politecnico di Torino, Dipartimento di Scienza Applicata e Tecnologia, C.so Duca Degli Abruzzi 24, 10129 Torino, Italy
Politecnico di Torino, Dipartimento di Ingegneria Meccanica e Aerospaziale, C.so Duca Degli Abruzzi 24, 10129 Torino, Italy
Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 100 44 Stockholm, Sweden
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