The Study On Laser-controlled Wetting Characteristics Of Glass Surface

Laser processing technology has developed rapidly in recent years due to its advantages such as high speed,safety,pollution-free,low cost,precision,etc.,and has been widely used in micro-nano manufacturing,aerospace,automobile manufacturing,electronics and other fields.Laser-induced deposition technology has become increasingly mature as a new laser processing technology in recent decades.This paper uses a fiber laser marking machine with a wavelength of 1060 nm,uses H62 brass as the deposition target,and uses laser-induced plasma deposition technology on silicate glass.A metal deposition layer having a micro-nano structure is prepared on the surface.The surface morphology and wetting characteristics of silicate glass are changed by controlling and changing the laser processing parameters.The influence of laser processing parameters such as different laser array scanning methods,different laser scanning intervals,and different laser scanning rates on the surface wetting characteristics of silicate glass was studied,and the characteristics of the surface wetting characteristics were analyzed.The results show that the laser-induced plasma deposition method has prepared metal deposition layers with micro-nano composite structures on the surface of silicate glass.When the cross-array laser scanning method is used,the laser pitch is 200?m,and the laser scanning rate is 50mm/s,the static water contact angle on the surface reaches a maximum of 156.1°.Adhesion tests show that the surface has high adhesion properties.The anisotropy test shows that the surface has anisotropy related to the structural direction.Surface micromorphology and chemical composition analysis show that a large number of dense "cauliflower-like" and fluffy micro-nano composite structures on the surface,and the adsorption of metal oxides and organics formed on the surface change the wetting characteristics of silicate glass.This research will bring some guidance to the preparation and application of superhydrophobic and highly adherent materials.