Irzmańska Emilia, Korzeniewska Ewa, Pawlak Ryszard, Tomczyk Mariusz, Smejda-Krzewicka Aleksandra, Adamus-Włodarczyk Agnieszka
Central Institute for Labour Protection, Department of Personal Protective Equipment, National Research Institute (CIOP-PIB), Wierzbowa 48 Str., 90-133 Lodz, Poland.
Institute of Electrical Engineering Systems, Lodz University of Technology, Stefanowskiego 18 Str., 90-537 Lodz, Poland.
Materials (Basel). 2021 Dec 24;15(1):106. doi: 10.3390/ma15010106.
The article presents significant results in research on creating superhydrophobic properties of materials which can be used as an interesting material for use in self-cleaning polymer protective gloves and similar applications where the superhydrophobicity plays a significant role. In this work the influence of laser surface modification of MVQ silicone rubber was investigated. The research was conducted using a nanosecond-pulsed laser at 1060 nm wavelength. After a process of laser ablation, the surface condition was examined using a SEM microscope and infrared spectroscopy. During the tests, the contact angle was checked both before and after the laser modification of samples pre-geometrised in the process of their production. The test results presented in the paper indicate that the chemical and physical modifications contribute to the change in the MVQ silicone rubber contact angle. A significant increase (by more than 30°) in the contact angle to 138° was observed. It was confirmed that surface geometrisation is not the only factor contributing to an increase in the contact angle of the analyzed material; other factors include a change in laser texturing parameters, such as mean beam power, pulse duration, scanning speed and pulse repetition frequency.
本文介绍了在材料超疏水性能研究方面取得的重要成果，这些材料可作为一种有趣的材料，用于自清洁聚合物防护手套以及超疏水性起重要作用的类似应用中。在这项工作中，研究了激光表面改性对MVQ硅橡胶的影响。研究使用了波长为1060 nm的纳秒脉冲激光。经过激光烧蚀过程后，使用扫描电子显微镜（SEM）和红外光谱对表面状况进行了检查。在测试过程中，对在生产过程中预先进行几何加工的样品进行激光改性前后，都检查了接触角。本文给出的测试结果表明，化学和物理改性有助于改变MVQ硅橡胶的接触角。观察到接触角显著增加（超过30°），达到138°。证实了表面几何化不是导致所分析材料接触角增加的唯一因素；其他因素包括激光纹理化参数的变化，如平均光束功率、脉冲持续时间、扫描速度和脉冲重复频率。
