多级双向拉伸挤出系统在聚合物加工中的应用进展  

Recent Progress of Multi-Stage Biaxial Stretch Extrusion System in the Polymer Processing

作　　者：李春海[1] 吴宏[1] 李姜[1] 沈佳斌[1] 熊英[1] 陈蓉[1] 张先龙[1] 郑宇[1] 张捷[1] 刘桂廷[1] 郭少云[1] Chunhai Li;Hong Wu;Jiang Li;Jiabin Shen;Ying Xiong;Rong ChenXianlong Zhang;Yu Zheng;Jie Zhang;Guiting Liu;Shaoyun Guo(State Key Laboratory of Polymer Materials Engineering,Polymer Research Institute of Sichuan University,Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065,China)

机构地区：[1]高分子材料工程国家重点实验室,四川大学高分子研究所四川省橡塑材料复合成型技术工程实验室,四川成都610065

出　　处：《高分子材料科学与工程》2021年第1期349-358,374,共11页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51420105004,51227802,51673136,51421061)。

摘　　要：以自主研发的分割-双向拉伸-叠加单元(LME)为核心,借助数学中的积分思想,通过串联一系列的LME,累积单个LME中双向拉伸/剪切力场作用效果,发明一套新型多级双向拉伸挤出系统(MBSE)。分析讨论MBSE构造及原理,介绍MBSE拉伸/剪切复合力场的实现及分布,从纯聚合物、聚合物/聚合物共混材料,聚合物/无机纳米粒子复合材料等物料体系着重讨论了MBSE的特点与优势。研究结果表明,相对于传统的基于单一剪切力场的挤出成型方法,MBSE中的双向拉伸/剪切复合力场,在调控分散相形态、调控聚合物晶体结构、促进纳米填分散及调控纳米填料粒子网络等方面具有突出的优势,在高分子及其复合材料的加工成型中具有广阔的应用前景。Based on the dividing-biaxial stretch-combining element(LME),using the idea of integration in mathematics,i.e,integrating the effects of the biaxial elongation/shearing force field in a single LME by connecting several LME in series,an advanced multi-stage biaxial stretch extrusion system(MBSE)was invented.This review analyzed and discussed the principle of MBSE,introduced the realization and distribution of the biaxial elongation/shearing force field in MBSE,stated the characteristics and advantages of the MBSE in the polymer processing from neat polymer,polymer/polymer blendings,polymer/inorganic nanofiller composites,etc.The results show that,compared with the single shear force field in traditional extrusion,the biaxial elongation/shearing force field here exhibits outstanding advantages in controlling the morphology of the dispersed phase,regulating the crystalline structure,promoting the dispersion of nanofillers in the polymeric matrix and tailoring the network of nano-fillers.Therefore,MBSE has broad application prospects in polymer processing.

关 键 词：拉伸力场 剪切力场 加工成型 原位成纤 取向 分散 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]