静电纺丝作为一种简单而有效的方法,广泛应用于纳米纤维的制备.本文以静电纺丝过程中带电溶液为对象,将带电溶液模拟成多个离散化的带电粒子,对带电粒子进行受力分析,建立带电粒子的分子动力学模型.基于Runge-Kutta算法,对带电粒珠的运动轨迹进行了数值计算,并利用MATLAB软件进行了仿真.改变静电纺丝工艺参数,得到了带电粒珠的不同运动轨迹的仿真图像.在相同的工艺条件下进行了纺丝实验,实验所制备的纳米纤维轨迹与仿真图像相一致.分析结果表明,静电纺丝过程中,改变工艺参数可以实现纳米纤维的运动轨迹的可控.
This article took the charged solution with electrical as the study object,the charged solution was simulated as multiple charged particles and which were discretized.Force analysis was applied to single charged particle,molecular dynamics model was built.The movement locus of charged particle was calculated based on runge-kutta method,and simulated using matlab by changing technological parameters of electrospinning,different simulation images have been obtained.The nanofibers were prepared by electrospinning experiment in the same technological parameters,the SEM images of nanofibers were in consisted with simulation images.the results demonstrate that the movement locus of nanofibers is controllable by changing technological parameters during electrospinning.
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