Effect of bovine bone collagen and nano-TiO 2 on the properties of hydroxypropyl methylcellulose films

Hydroxypropyl methylcellulose (HPMC) film containing bovine bone collagen (BC) and nano-TiO were developed via casting method. The films were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), and their mechanical properties, barrier properties, thermal stability and surface color were investigated. The results showed that polymer matrices of HPMC and BC had good compatibility. The nano-TiO could be well embedded and dispersed in the matrix of HPMC/BC films, resulting in homogeneous, continuous and compact structure of the composite films. The addition of BC and nano-TiO significantly (p