研究目的
Investigating the use of a nanosecond green laser to modify the wettability properties of acrylonitrile-butadiene-styrene copolymer (ABS) surfaces to achieve both superhydrophobic and superhydrophilic behaviors.
研究成果
The use of a green laser in the range of nanosecond pulses provided an effective method to control the final wettability of ABS, with both superhydrophilic and superhydrophobic behaviors being observed. These wetting properties were reliant on the surface topography created, and this was directly related to the laser parameters such as the fluence. All of the structures were stable over time.
研究不足
The study was limited to a specific type of polymer (ABS) and a specific laser (nanosecond green laser). The scalability of the method for industrial applications was not extensively explored.
1：Experimental Design and Method Selection:
A nanosecond green laser was used to modify the surface of ABS. The laser parameters such as overlap between pulses, DPI, and laser fluence were controlled to achieve different surface topographies.
2：Sample Selection and Data Sources:
White commercial ABS samples were cleaned with isopropanol prior to irradiation.
3：List of Experimental Equipment and Materials:
Nd:YVO4 nanosecond laser (Trumark 6230 from Trumpf), confocal microscope (Sensofar Plu 2300), environmental scanning electron microscope (ESEM, QUANTA FEG 250), X-ray photoelectron spectroscopy (XPS, Kratos AXIS Ultra DLD), contact angle goniometer (Theta Lite Optical Tensiometer).
4：Experimental Procedures and Operational Workflow:
The ABS samples were irradiated at different positions along the focal axis to vary the laser fluence. The surface topography and wetting properties were then analyzed.
5：Data Analysis Methods:
The topography was analyzed using confocal microscopy and ESEM. The chemical modifications were studied using XPS. The wettability was measured using a contact angle goniometer.
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