双螺杆挤出机在高比例溶剂POE脱挥及挤压造粒中的应用  

Application of twin-screw extruder for high-proportion solvent POE devolatilization and granulation

作　　者：徐斌 陈志强 陈燕飞 马宁 XU Bin;CHEN Zhiqiang;CHEN Yanfei;MA Ning(USEON Technology Limited,Nanjing 211103,China)

机构地区：[1]江苏越升科技股份有限公司,南京211103

出　　处：《中国塑料》2022年第11期108-111,共4页China Plastics

摘　　要：对双螺杆挤出机在聚烯烃弹性体(POE)制备过程中高比例溶剂脱挥及挤压造粒应用进行了介绍,并经过试验平台验证,探索出“可控分布脱挥技术”,通过脱挥过程中各个区段不同的工艺要求,设置不同的工艺温度和螺杆的组合排列,同时通过合理控制各个区段不同的真空要求;最终利用双螺杆挤出机将POE流体中的高比例溶剂(质量分数为75%的溶剂)脱挥至50~200 ppm;同时,阐述了在脱挥过程中的技术关键点,这对大型双螺杆脱挥机组的设计起到了良好的技术支撑作用。This paper introduced the application of twin-screw extruder for the high-proportion solvent polyolefin elastomer(POE)devolatilization and granulation. Using an experiment plate,the“controlled stepwise devolatilization process”was investigated through setting a suitable temperature and configuration of twin screw under the different process requirement of different section and controlling different vacuum of every devolatilization section. A high proportion of solvent(75 wt%)in the POE fluid was devolatilized up to 50~200 ppm through the twin-screw extruder. Meanwhile,a key technical point in devolatilization process was described,which provided a design support in the mega-extrusion and devolatilization unit.

关 键 词：聚烯烃弹性体 脱挥 挤压造粒 双螺杆挤出机 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]