作　　者： ; ; ;

机构地区： 暨南大学珠海学院包装工程研究所

出　　处： 《高分子材料科学与工程》 2013年第1期158-161,共4页

摘　　要： 采用溶液共混法制备了一系列不同比例的羟丙基纤维素(HPC)/壳聚糖(CS)共混膜,研究了羟丙基纤维素含量对共混膜的力学性能、吸湿性能、透光性能等的影响。结果表明,HPC/CS共混膜的断裂伸长率随着HPC含量的增加而增加,而拉伸强度则先提高后下降,且在含量为40%时共混膜的拉伸强度达到最大;共混膜在可见光区300nm^800nm的最大透光率均大于70%;随着HPC含量的增加共混膜的吸水率大大降低。 A series of composite films with different proportion of hydroxypropyl cellulose （HPC） and chltosan were prepared by solution blending. The influences of the HPC content on the mechanical property, .moisture absorption property and photopermeability of the films were investigated. The results show that the elongation at break increases with the increase of HPC content in the films. The tensile strength increases first and decreases later, reaches the maximum while the mass fraction of HPC is 40 %. The light transmittance of all the films is more than 70 % at the visible region from 300 nm to 800 nm. The moisture absorption decreases dramatically with the increase of HPC content.

关 键 词： 壳聚糖 羟丙基纤维素 共混膜

领　　域： [一般工业技术]