Construction of layer-by-layer assembled chitosan/titanate nanotubes based nanocoating on cotton fabrics: flame retardant performance and combustion behavior
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- 作者：Haifeng Pan ; Wei Wang ; Ying Pan ; Wenru Zeng ; Jing Zhan ; Lei Song ; Yuan Hu…
- 关键词：Titanate nanotubes ; Flame retardancy ; Protective effect ; Network structure
- 刊名：Cellulose
- 出版年：2015
- 出版时间：February 2015
- 年：2015
- 卷：22
- 期：1
- 页码：911-923
- 全文大小：12,323 KB
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Wei Wang (1)
Ying Pan (1)
Wenru Zeng (1)
Jing Zhan (1)
Lei Song (1)
Yuan Hu (1) (2)
Kim Meow Liew (2) (3)
1. State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, Anhui, People’s Republic of China
2. Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute of University of Science and Technology of China, 166 Ren’ai Road, Suzhou, 215123, Jiangsu, People’s Republic of China
3. Department of Building and Construction, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Bioorganic Chemistry
Physical Chemistry
Organic Chemistry
Polymer Sciences - 出版者：Springer Netherlands
- ISSN：1572-882X
文摘
A flame retardant nanocoating made from chitosan and titanate nanotubes was deposited on the surface of cotton fabric by the layer by layer assembly to improve its flame retardancy. Firstly, the hydrothermal method was used to prepare titanate nanotubes. Then, coated cotton fabrics were prepared by alternately submersing cotton fabrics into chitosan solution and titanate nanotube suspension. The structure of nanocoating on cotton fabric surface was tailored by altering number of bilayers and the concentration of titanate nanotube suspension. X-ray photoelectron spectroscopy confirmed that titanate nanotube filled nanocoating was successfully deposited on the surface of cotton fabric. Furthermore, the titanate nanotubes assembled a randomly oriented and entangled network structure, as can be observed by scanning electron microscopy. The thermogravimetric analysis result indicated that the thermal and thermal-oxidation stability of all coated cotton fabrics were both improved in the high temperature range from 330 to 700?°C. The microscale combustion calorimeter result showed that all coated cotton fabrics have the reduction in peak heat release rate and total heat release compared with that of pristine cotton fabric. Moreover, the reduction was dependent on the concentration of titanate nanotube suspension and number of bilayers. The improved flame retardancy can be ascribed to the protective effect of the titanate nanotube network structure formed, which acts as a physical barrier to retard the heat, oxygen and mass transfers between the flame and underlying material.