基于数字图像处理的静电纺丝参数及收集方法对聚乳酸/聚丁二酸丁二醇酯复合纤维尺寸分布和取向的研究

Study of Electrospinning Parameters and Collection Methods on Size Distribution and Orientation of PLA/PBS Hybrid Fiber Using Digital Image Processing.

作者信息

Abudula Tuerdimaimaiti, Saeed Usman, Salah Numan, Memic Adnan, Al-Turaif Hamad

机构信息

Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdul Aziz University, Jeddah 21589, Saudi Arabia.

Center of Nanotechnology, King Abdul Aziz University, Jeddah 21589, Saudi Arabia.

出版信息

J Nanosci Nanotechnol. 2018 Dec 1;18(12):8240-8251. doi: 10.1166/jnn.2018.15885.

DOI:10.1166/jnn.2018.15885

PMID:30189943

Abstract

The Canny Edge-Based Distance Transform and Hough Transform algorithms were successfully implemented to analyze the size distribution and the orientation of the electrospun PLA/PBS hybrid fiber. The effect of polymer concentration, voltage, feed rate and needle-collector distance were studied. It was found that feed rate of 0.5 ml/h and needle-collector distance of 12 cm is required to generate smooth and uniform hybrid fibers in the smallest size electrospinning with 6 wt.% polymer at voltage of 20 kV. The stationary flat collector with a swaying needle and fast rotating drum disc with a stationary needle were used for the fiber alignment. In order to improve the size distribution and the orientation of the hybrid fibers it is proposed that the fibers should be collected on the rotary drum disc at 700 rpm or higher speed.

摘要

基于Canny边缘的距离变换和霍夫变换算法被成功实现，用于分析电纺聚乳酸/聚丁二酸丁二醇酯（PLA/PBS）混合纤维的尺寸分布和取向。研究了聚合物浓度、电压、进料速度和针头与收集器距离的影响。结果发现，在20 kV电压下，采用6 wt.%的聚合物进行最小尺寸的静电纺丝时，需要0.5 ml/h的进料速度和12 cm的针头与收集器距离，才能生成光滑均匀的混合纤维。使用带有摆动针头的固定平面收集器和带有固定针头的快速旋转鼓盘来使纤维排列。为了改善混合纤维的尺寸分布和取向，建议将纤维收集在转速为700 rpm或更高的旋转鼓盘上。