微纳层叠复合材料力学性能的增强机理  

Strengthening mechanism of the mechanical properties of micro/nano-laminated composites

作　　者：黎帮高 陈商涛[1] 石行波[1] 曹文斌[2] 鲁启鹏 杜斌[1] LI Bang-gao;CHEN Shang-tao;SHI Xing-bo;CAO Wen-bin;LU Qi-peng;DU Bin(PetroChina Petrochemical Research Institute,Beijing 102206,China;School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院,北京102206 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《工程科学学报》2023年第3期380-388,共9页Chinese Journal of Engineering

基　　金：中央高校基本科研业务费资助项目(06500113,FRF-IDRY-20-008)。

摘　　要：微纳层叠技术是层层组装(LbL)技术中的一种,能够将两种或多种不同的聚合物组合生成具有交替层状结构的复合材料.与浸涂、旋涂和喷涂等传统组装方法相比,该技术是一种不含溶剂的熔体连续加工技术,具有经济环保的优点.本文简要总结了微纳层叠技术的研究现状,概述了微纳层叠技术的原理与工艺,重点介绍了多层交替复合材料力学性能的增强机理,包括层界面相互作用、层界面诱导结晶、调控聚合物相形态、调控无机粒子的分散取向和原位成纤,并对该技术的未来研究方向进行展望.Offering the advantages of easy preparation and low cost,polymer systems account for many of the high-performance materials used in industry.With the widespread application of polymer materials,higher requirements for the properties of polymer products have been proposed.Recently,polymer-based functional composites have been a worldwide research focus,and the structure of the composites directly affects their properties.The special multilayer structure of shells and trees often brings excellent performance or special functions.Discussing the strength and toughness mechanism of natural materials helps guide new functional composite preparation.In recent decades,a novel micro/nano-lamination technology has attracted the interest of academia and industry.Micro/nano-lamination technology is a layer-by-layer assembly(LbL)technology,which can combine two or more types of polymers into tens of thousands of layers alternately arranged,and each microlayer thickness can reach nanometer level to form composite materials with an alternating layered structure.Compared with solution LbL assembly methods,such as dip coating,spin coating,and spray coating,it is a continuous melt processing technique that involves no solvent,which has the advantages of flexibility,versatility,economy,and eco-friendliness.Compared with the composites prepared by blending melt extrusion or with fewer layers,the shape memory properties,electrical properties,barrier properties,and mechanical properties of composites prepared by micro/nano-lamination technology are considerably improved.As an application of biomimetic materials in the polymer research field,multilayer alternating composites prepared using micro/nano-lamination have a special multilayer structure,rich layer interface,and micro/nano-scale layer confined space.The multilayer composites prepared by micro/nano-lamination have an important positive synergistic effect on mechanical properties,and the unique multilayer structure can adjust stress distribution,stress transfer,and microcrack pr

关 键 词：微纳层叠技术 复合材料 力学性能 多层交替结构 增强机理 

分 类 号：TB33[一般工业技术—材料科学与工程]