Method for improving ramie hydrophobicity through CF4 (carbon tetrafluoride) low-temperature plasma treatment

• Main Authors: XU ZHIWEI, YUE MENGYAO, YANG CAIYUN, GUO QIWEI, QIAN XIAOMING, WANG ZHEN, SHAN MINGJING, SHI CHENGBO
• Format: Patent
• Language: Chinese; English
• Published: 08.05.2013
• Subjects: FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS

The invention relates to a method for improving ramie hydrophobicity through CF4 (carbon tetrafluoride) low-temperature plasma treatment. The method comprises the following steps of pretreating the ramie with alkaline solution so as to remove pectin and impurities on the surface of the ramie, and then introducing CF4 into a plasma generator so as to treat the ramie, wherein in the process, reactions such as etching, crosslinking, graft polymerization and the like can be carried out on the high-energy active particles generated in the CF4 low-temperature plasma and the surface of ramie, and besides the etching action, the exciting gas CF4 also has very strong fluorination property and can introduce functional groups on the surface of the ramie, so that the surface energy of the ramie can be lowered, and the surface hydrophobicity of the ramie is greatly improved. In addition, the method has a simple operation process and is easy to realize.