Guo, Yifei. Inkjet printing based method for manufacturing and dimensional control of liquid bridges for air purifier. Retrieved from https://doi.org/doi:10.7282/t3-gxpd-d319
DescriptionAirborne particles can be harmful to the human body if inhaled. The idea of a new type of filter that could use liquid to filter particles from the air was proposed. In order to test this idea, the filter consisting of multiple liquid bridges needs to be manufactured, and the size of the liquid bridges and the spacing between the bridges need to be accurately controlled to study the filtration efficiency of the filter. An inkjet printer was used to produce liquid drops to form such liquid bridges. The liquid used to form liquid bridges is PEG 600. To increase the contact angle between PEG 600 and the glass slides, silane surface modification was used to perform the surface treatment to the glass slides, making the contact angle between PEG 600 and the glass slides to around 70°. A model was prepared to calculate the diameter of the liquid. By using this model, a set of liquid drops were printed to test the printing performance. After testing, the model predicted the size of the liquid bridge well, and good performance of the printer allowed the printed liquid bridge to be used in the study of the purification efficiency of the purifier.