醋酸丙酸纤维素的加工工艺研究  

Study on technology for CAP processing

作　　者：金立维[1,2] 段丽艳[1,2] 陈日清[1,2] 王春鹏[1,2] 储富祥[1,2] 

机构地区：[1]中国林业科学研究院林产化学工业研究所 [2]国家林业局林产化学工程重点开放性实验室,江苏南京210042

出　　处：《现代化工》2009年第S2期238-241,243,共5页Modern Chemical Industry

基　　金：国家高技术研究发展计划("863")项目(2007AA100704);国家"948"创新项目(2006-4-C03);中央级公益性科研院所基本科研业务费专项资金项目(CAFYBB2007019;CAFINT2007C004)

摘　　要：对醋酸丙酸纤维素在双螺杆挤出时加工工艺条件如挤出电流等对粒子的耐水性能和熔融指数的影响进行了研究。结果表明,在螺杆转速500 r/min,螺杆加工五区温度为140、170、170、170、160℃,增塑剂质量分数为20%时挤出粒子性能最佳。对醋酸丙酸纤维素与聚己内酯的共混挤出进行了研究,聚己内酯能较好地改善粒子韧性,在同向双螺杆挤出的含20%柠檬酸三乙酯的醋酸丙酸纤维素粒子和含20%柠檬酸三乙酯的醋酸丙酸纤维素-聚己内酯共混粒子都可以利用通用的吹膜机制备薄膜。The influences of the extruder operating conditions such as current,water absorption and melt flow speed are discussed,during the twin-screw extruder of cellulose acetate propionate(CAP).The compatible conditions are as follows:screw rotating speed is 500 r/min,screw temperature is 140,170,170,170,160℃,CAP-based biodegradable film is prepared by extrusion and blowing method from blends of CAP and PCL,plasticized with TEC.PCL can improve effectively the tenacity of particles,the co-mixing particles made by cellulose acetate propionate containing 20 wt% of TEC,and the particles of double screws extruder and PCL containing 20 wt% of TEC in same directional twin-screw extruder,may be produced to films by conventional blowing machine.

关 键 词：醋酸丙酸纤维素 挤出电流 柠檬酸三乙酯 聚己内酯 

分 类 号：TQ352.1[化学工程]