^(60)Co-γ射线改性淀粉制备可降解材料及热压工艺的研究  

Study on Hot-pressing Technology of ^(60)Co-γ Ray Modified Starch Biodegradable Material

作　　者：何乐[1] 陈复生[1] 姚永志[1] 刘伯业[1] 王洪杰[1] 

机构地区：[1]河南工业大学粮油食品学院,河南郑州450052

出　　处：《塑料工业》2012年第1期35-39,共5页China Plastics Industry

基　　金：国家自然基金项目(20976037);国家教育部科学技术重点资助项目(205094);河南省杰出人才创新基金项目(05210005000);河南工业大学2010年研究生科技创新基金项目(10YJS004)

摘　　要：研究了60Co-γ射线对玉米淀粉进行的辐射改性处理。研究了辐照剂量、热压温度、热压时间、热压压力对所得材料的力学性能、透光率、吸水率的影响规律,制备出较好的可生物降解材料。结果表明:选用辐照剂量30kGy、热压温度125℃、热压时间12 min、热压压力12 MPa,制备材料的断裂伸长率153.9%,拉伸强度4.28 MPa,透光率48.6%,吸水率61.26%。Abstract： Starch materials were treated by 60C0-γ radiation and modification. The effect of irradiation dose, hot-pressing temperature, hot-pressing time and hot-pressing pressure on the mechanical property, water absorbing capacity and visible light transmission were studied and a good biodegradable material was prepared. The results showed that the optimal processing condition for the preparation material was irradiation dose 30 KGy, hot-pressing temperature 125℃, hot-pressing time 12 min, hot-pressing pressure 12 MPa. The elongation at break, tensile strength, visible light transmission and water absorbing capacity were 153.9%, 4. 28 MPa, 48.6% and 61.26% respectively.

关 键 词：淀粉 辐射 改性 可降解材料 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]