论文部分内容阅读
高温预处理、粉碎的鸡毛粉末经4种不同增塑剂增塑后,采用模压法制备柔韧的生物塑料。采用扫描电子显微镜、X-射线衍射仪表征了生物塑料的表面形态与结晶结构,研究了其干态、湿态的拉伸力学性能与耐水稳定性。结果表明:在乙二醇、丙二醇、丙三醇和三乙醇胺4种增塑剂中,乙二醇增塑后制得的角蛋白生物塑料具有最佳的柔韧性和透明度;最佳模压条件为热压温度164℃,热压压力74MPa,热压时间8min;采用最佳模压条件制得的生物塑料断裂强度可达到7.58MPa,断裂伸长率可达到42.37%。
High temperature pretreatment, pulverized chicken feather powder plasticized by 4 different plasticizers, the use of molding method to prepare a flexible bioplastic. The surface morphology and crystal structure of bioplastic were characterized by scanning electron microscopy and X-ray diffractometer. The tensile mechanical properties and water stability of bioplastic were studied. The results showed that keratin bioplastics prepared by plasticizing ethylene glycol had the best flexibility and transparency among the four plasticizers of ethylene glycol, propylene glycol, glycerol and triethanolamine. The best molding conditions were hot The pressing temperature of 164 ℃, hot pressing pressure of 74MPa, hot pressing time of 8min; using the best molding conditions obtained bioplastics breaking strength up to 7.58MPa, breaking elongation up to 42.37%.