Cellulose-silicon oxide composite superhydrophobic material and preparation method thereof

US11466406B2 · kind B2 · utility

Assignee

• Guangxi University · CN

Inventors

• Chongxing Huang · Nanjing, CN
• Yuan Zhao · Mesa, US
• Hui Zhao · Emeryville, US
• Lijie Huang · Nanning, CN
• Yangfan Xu · Beijing, CN
• Qingshan Duan · Nanning, CN
• Cuicui Li · Qingdao, CN
• Hongxia Su · Nanning, CN
• Jian WANG · Changsha, CN
• Linyun Zhang · Nanning, CN

Key dates

• Filing date: Dec 9, 2020
• Grant date: Oct 11, 2022
• Expiry date: Dec 9, 2040

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21H25/04
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A cellulose-silicon oxide composite superhydrophobic material and a preparation method thereof are disclosed. In the method, cellulose substrates with different surface topographies are pretreated by a low-temperature plasma, and then a first silicon oxide layer is deposited on the cellulose substrate by a low-temperature plasma-enhanced chemical vapor deposition method, then modified by a low-temperature plasma, and finally a second silicon oxide layer is deposited thereon, thereby preparing a micro-nano structured superhydrophobic surface on the cellulose substrate, to obtain a cellulose-silicon oxide composite superhydrophobic material, which is an environmentally friendly bio-based hydrophobic material.