Study of the possibility of forming a hydrophobic and anti-foil coating on the substrate of optical glass based on organosilicon compounds
209 viewsDOI:
https://doi.org/10.54939/1859-1043.j.mst.78.2022.101-107Keywords:
Polymethylhydrosiloxane; Tetraethoxysilane; Optical glass; Hydrophobic coating.Abstract
Protective films for optical glasses based on silicon-based compounds were synthesized by the sol-gel method from polymethylhydrosiloxane (PMHS) and tetraethoxysilane (TEOS) on an alkaline catalyst. The hydrophobic and anti-mould properties of the films were evaluated by measuring the wetting angle of droplets and mold culture. The influence of the film on the characteristics of the glass was evaluated by determining the optical transmission using spectroscopy and determining the morphology of the glass surface after coating by AFM. The results obtained show that the coating film practically does not change the optical transmittance of the optical glass. Water resistance and mold resistance increased significantly at a contact angle of more than 116.23°, and mycelium grew only after 39 days of cultivation under favorable conditions.
References
[1]. Bùi Xuân Đông, Hà Huy Kế, “Nấm mốc và các phương pháp phòng chống”, Nhà xuất bản khoa học và kỹ thuật, 1999
[2]. R. Drewello & R. Weissmann, “Microbially influenced corrosion of glass”. Applied Microbiology and Biotechnology volume 47, pages 337–346 (1997).
[3]. V M Thành, L D Anh, N M Tiến, Đ V Long, Đ T Anh, T Khương, P T Anh, T Đ Định, T T T Cúc, “Xác định nguyên nhân gây mờ kính quang học và thành phần của vật liệu chống mờ kính ngắm quang học trong môi trường biển đảo”, Tạp chí Nghiên cứu KH&CN Quân sự, số 27 (2013).
[4]. Bekir Sami. Yilbas, Haider Ali, Mazen M. Khaled, Nasser Al-Aqeeli, Numan Abu-Dheir, Kripa K. Varanasi, “Influence of dust and mud on the optical, chemical, and mechanical properties of a PV protective glass”. Scientific reports, 5:15833, DOI: 10.1038/srep15833 (2015).
[5]. B Bhushan, Y C Jung and K Koch, “Self-cleaning efficiency of artificial superhydrophobic surfaces”, Lang- muir, 25(5) 3240-3248 (2009).
[6]. X Zhang, F Shi, J Niu, Y G Jiang and Z Q Wang, “Superhydrophobic Surfaces: From Structural Control to Functional Application”, Journal of Materials Chemistry, 18(6) 621-633 (2008).
[7]. A Levkin, F Svec and J J M Frechet, “Porous polymer coatings: a versatile approach to superhydrophobic surfaces”, Advanced Functional Materials, 19(12) 1993-1998 (2009).
[8]. Shing-Dar Wang, Shih-Shiang Luo, “Fabrication of transparent superhydrophobic silica-based film on a glass substrate”, Applied Surface Science, 258, 5443-5450 (2012).
[9]. Qi Wang, Xia Hao, Yongmei Wu, Chunrong Xiong, Hong Jiang, “Fluoroalkylsilane grafted porour glass surface for superhydrophobicity and high visible transmittance”. Materials letters 257, 126734, (2019).
[10]. Itoh, Susumu, Shimura, Shoichi, Hatakeyama, Hideyuki, Ukuda, “Hideo - Anti-fogging coating and optical part using the same”, United States Patent 6287683, (2001).
[11]. Huynh H. Nguyen, Shanhong Wan, Kiet A. Tieu, Hongtao Zhu, Sang T. Pham. “Rendering hydrophilic glass-ceramic enamel surfaces hydrophobic by acid etching and surface silanization for heat transfer applications”, Surface & Coatings Technology, 379, 82-96 (2019).
[12]. John A Glass Jr, Edward A, Wovchko, John T Yates, “Reaction of atomic hydrogen with hydrogenated porous silicon-detection of precursor to silane formation”, Surface science, 348(3) 325-334 (1996).
