聚合物基复合填充体系的耗散粒子动力学模拟  

Dissipative Particle Dynamics Simulation of Polymer Matrix Composite Filling System

作　　者：冯可 王煜 陈鹏[1] FENG Ke;WANG Yu;CHEN Peng(College of Chemistry and Chemical Engineering,Anhui University,Hefei,Anhui 230601,China)

机构地区：[1]安徽大学,化学化工学院,安徽合肥230601

出　　处：《塑料》2023年第1期170-174,共5页Plastics

基　　金：国家重点研发计划(2017YFB0406204);国家自然科学基金(51973002);安徽高校协同创新项目(GXXT-2019-030)。

摘　　要：为了设计并开发兼具较好的导热和力学性能的聚合物复合材料,利用耗散粒子动力学(DPD)模拟方法,研究了填充片状、棒状2种填料组合的聚合物复合材料体系。设计了一系列片状和片-棒结合的填料,研究了填料结构、片-棒结合方式对复合体系导热和力学的影响。研究发现,利用棒状填料固定2层片状填料,形成片-棒组合填料,能同时提高聚合物体系的力学及导热性能。模拟分析了片-棒组合填料的结构及尺寸因素对复合体系性能的影响,预测了制备高导热、高力学的聚合物复合材料的可行性。研究结果对实验研究制备高性能填充型聚合物复合材料具有重要的理论指导意义。Polymeric system based on flake and rod fillers were investigated by Dissipative Particle Dynamics(DPD)in order to study the effects of thermal conductivity and mechanical property on polymer composite.Influence of filler structure and sheet-rod combination on the heat conduction and mechanics was studied by designing a series of sheet-like and sheet-rod combination fillers.It was found that use of rod-shaped fillers fixing two sheet-shaped fillers could simultaneously improve the mechanical and thermal conductivity of the polymer system.Effect of the structure and size factors of the sheet-rod filler on the performance of the composite was also analyzed to access the feasibility of preparing polymer composite with high thermal conductivity and high mechanics.This work would bring about important theoretical guiding for the experimental study of the preparation of high-performance composites.

关 键 词：耗散粒子动力学 组合填料 聚合物基复合材料 导热 力学 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]