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为了模拟纺织品中衣物纤维的吸湿性能,搭建了能操控并观测微小体积(微升)液滴的实验平台。本实验平台将自行编写可执行程序上传到Arduino开发板中控制步进电动机的脉冲信号,使用步进电动机和数码显微镜来达到微观尺度的高精度间距控制和观察。通过控制纤维的间距来观察液滴的形貌变化,发现液滴形貌变化与纤维半径、液滴体积有关。当纤维半径是0.25mm时,小体积液滴(约小于1.2μL)随着间距的增加或者减少形貌具有可逆性,但是(相对的)大体积的液滴(约大于1.2μL)随着纤维间距的变化出现了滞后性。本文的研究对于纤维纺织品的制造和小规模液体的操纵或运输有参考作用。
Abstract：In order to simulate the moisture absorption performance of clothing fiber in textiles,an experimental platform that can manipulate and observe mesoscopic liquid was designed.This experimental platform can compile an executable program and upload it to Arduino development board to control the pulse signal of stepper motor,and then make the stepper motor and digital microscope to achieve micro-scale high-precision spacing control and observation.The change of droplet morphology was observed by controlling the fiber spacing.It was found that the change of droplet morphology was related to the fiber radius and droplet volume.When the fiber radius was 0.25 mm,the morphology of small droplets(less than 1.2μL)was reversible with the increase or decrease of the spacing.However,the morphology of the large droplets(large than 1.2μL)showed the hysteretic behavior with the change of fiber spacing.The research in this paper provides a reference for the manufacture of fiber textiles and the manipulation or transportation of small-scale liquids.
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基本信息:
中图分类号:TS103.63
引用信息:
[1]阳志,秦建林,萧华鹏,等.基于Arduino的显微观测平台的设计[J].物理与工程,2021,31(04):109-113.
基金信息:
国家自然科学基金地区基金（11665007）; 广西自然科学基金（2018GXNSFAA138190）; 广西高校青年教师基础能力提升计划项目（2018KY0085）; 广西重点研发计划（桂科AB19050003）
2020-06-03
2020
2020-11-03
2021-04-23
2021
1
2021-07-09
2021-07-09
2021-07-09