聚合物间歇微发泡泡孔形态演化过程的数值分析  

Numerical Analysis of Cell Morphology Evolution Process of Polymer Batch Micro Foaming

作　　者：王潇宇 王利霞 杨学成[1] 周诣平 李倩 Wang Xiaoyu;Wang Lixia;Yang Xuecheng;Zhou Yiping;Li Qian(School of Mechanics and Engineering Sciences,Zhengzhou University,Zhengzhou 450001,China;National Center for International Joint Research of Micro-Nano Molding Technology,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学力学与工程科学学院,郑州450001 [2]郑州大学微纳成型技术国家级国际联合研究中心,郑州450001

出　　处：《工程塑料应用》2019年第9期68-71,76,共5页Engineering Plastics Application

基　　金：国家自然科学基金项目(11372287);河南省科技攻关项目(国际科技合作)(172102410061)

摘　　要：基于气泡成核和生长控制方程,采用龙格–库塔法耦合求解泡孔成核和泡孔生长过程,实现了微发泡过程的数值计算,并采用MATLAB开发了间歇微发泡过程模拟程序.数值算例模拟不同保压压力下的微发泡过程,将泡孔密度和平均泡孔半径数值模拟结果与实验结果对比,验证了数值算法和模拟程序的可靠性;数值算例分析保压压力对微发泡过程中泡孔形态演化和泡孔半径分布的影响,获得发泡工艺对泡孔演化和泡孔尺寸分布的影响规律.Runge-Kutta method was used to solve the process of cell nucleation and growth based on the equations of bubble nucleation and growth,the numerical calculation process of cell nucleation and growth was realized,and the simulation program of batch micro-foaming process was developed in MATLAB. The cell density and cell average radius obtained from simulation results of micro-foaming process under different saturation pressure by numerical examples were compared with that obtained from experiment, which verified the reliability of numerical algorithm and simulation program. The effect of the saturation pressure on cell morphology evolution and cell radius distribution in micro-foaming process were analyzed by numerical examples and relevant influence was obtained.

关 键 词：聚合物 间歇微发泡 数值模拟 泡孔成核 泡孔生长 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]