Hexamethyldisiloxane coating by plasma to create a superhydrophobic surface for fabric masks

Journal of Materials Research and Technology

Silvia Renata De Souza Marski¹  Fernanda Davi Marques²  Marina Carvalho Prado²  Camila Ferreira Gerardo²  Braulio S. Archanjo³  Carlos Alberto Achete³  Renata Antoun Simão⁴  Viviane de Oliveira Freitas Lione⁴  Gabriela Cristina de Carvalho Silva⁴  Juliana do Nascimento Lunz⁴  Maíra Prado⁵  Audrey Wallace da Costa Barros⁵  Leonardo Pereira Pacheco⁵ 

[1] Corresponding author.;Department of Materials Science and Engineering, Federal University of Rio de Janeiro, P.O. Box 68505, 21945-970, Rio de Janeiro, RJ, Brazil;LaBioFar, Faculty of Pharmacy, Federal University of Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária da Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ, 21941-170, Brazil;National Institute of Metrology Quality and Technology (Inmetro), Materials Metrology Division (DIMAT), Av. Nossa Sra. Das Graças, 50 - Xerém, 25250-020, Duque de Caxias, RJ, Brazil;Postgraduate Program in Dentistry, Veiga de Almeida University, Praça da Bandeira, 149 - Tijuca, 20270-150, Rio de Janeiro, RJ, Brazil;

关键词: Hexamethyldisiloxane;    Plasma;    Fabric mask;    Hydrophobicity;   

DOI  :  

来源: DOAJ

【 摘 要 】

This study evaluated the effect of hexamethyldisiloxane (HMDSO) plasma on the fabrics surface to produce masks. Samples of 400-thread count cotton fabric were used. The fabrics was covered with a layer of HMDSO employing plasma enhanced chemical vapor deposition. Optical Microscopy, helium ion beam microscopy (HIM) and atomic force microscopy (AFM) were used for topographic analysis. Fourier transformed infrared spectroscopy technique was used to analyze the chemical modifications on surface. The level of hydrophobicity was evaluated using contact angle measurements. To evaluate the effect of washing cycle on the plasma coating, a protocol proposed by the World Health Organization was used. All experiments were performed in triplicate. For the statistical analysis, the Mann–Whitney, Kruskal–Wallis and Dunn tests were used. AFM showed that, after HMDSO plasma coating, a layer of small granules agglomerated on the original surface of the fabric was visualized. The fabric, which initially had a 0° contact angle value, presented angles of 120° after the plasma coating. It was concluded that the use of cotton fabric coated with HMDSO plasma proved to be adequate for the manufacture of protective masks, since the coating made the surface hydrophobic and this property is maintained even after washing cycles.

【 授权许可】

Unknown