| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1383792 | Carbohydrate Polymers | 2015 | 8 Pages |
•Collagen/HPMC blend film was prepared and characterized.•The thermal and mechanical properties of the blend film were superior.•The blend film exhibited a more homogeneous and compact structure.•Polyethylene glycol improved the extensibility and smoothness of the blend film.•Relationship among compatibility, interaction and properties of film was discussed.
This study aimed to prepare and characterize the collagen/HPMC blend film (1/1). Thermogravimetric analysis and differential scanning calorimetry were used to investigate the thermal properties of the film. Both thermal decomposition temperature and denaturation temperature of the blend film were higher than those of the collagen film due to the intermolecular hydrogen bonding interaction between collagen and HPMC, which was demonstrated by Fourier transform infrared spectroscopy. Additionally, the morphologies, mechanical properties and hydrophilicity of films were examined. The blend film exhibited a more homogeneous and compact structure compared with that of the collagen film, as observed from scanning electron microscopy and atomic force microscopy. The tensile strength, ultimate elongation and hydrophilicity of the blend film were superior to those of the pure collagen film. Furthermore, the introduction of polyethylene glycol 1500 had almost no influence on the thermal properties of the blend film but obviously improved its stretch-ability and smoothness.
