title: Preparation and characterization of collagen/hydroxypropyl methylcellulose (HPMC) blend film.
abstract: 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.
authors.affiliation: The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, PR China.
authors.forename: Cuicui
authors.initials: C
authors.lastname: Ding
authors.affiliation: College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.affiliation: The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, PR China; National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, PR China. Electronic address: liguoyings@163.com.
authors.forename: Guoying
authors.initials: G
authors.lastname: Li
mesh_terms: D000818:Animals; D002417:Cattle; D003094:Collagen / Q000138:chemical synthesis* / Q000737:chemistry; D055119:Elastic Modulus; D065347:Hypromellose Derivatives / Q000138:chemical synthesis* / Q000737:chemistry; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013818:Thermogravimetry; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; D065347:Hypromellose Derivatives; D003094:Collagen
keywords: Blend film; Characterization; Collagen; Hydroxypropyl methylcellulose (HPMC); Polyethylene glycol