期刊
CARBOHYDRATE POLYMERS
卷 81, 期 2, 页码 491-496出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2010.03.008
关键词
UV protection; Cationized cotton; Layer-by-layer; Electrostatic self-assembly; Fluorescent brightening agent
资金
- China State Scholarship Fund
- Qinglan Project
- TECS Department of the College of Textiles, NCSU, USA
A new approach for UV protection of cotton fabrics based on electrostatic self-assembly (ESA) technique was studied in this paper. Three fluorescent brightening agents (FBAs) and poly(diallyldimethylammonium chloride) (PDDA) were stepwisely fabricated on cationized cotton fabrics through direct layer-by-layer (LbL) deposition technique. Dyeing of the assembled cotton fabrics with anionic dyes shows regular and identifiable odd-even changes in color depth (K/S value), indicating the variation of surface polarities of the cotton substrates due to the alternate deposition of FBA and PDDA on them. The stepwise increases in UPF of treated cotton fabrics further revealed the growth of these LbL deposition multilayers. The assembled cotton fabrics could obtain excellent UV protection ratings of UPF > 40 after several bilayers of FBA/PDDA were fabricated, depending on the type of FBAs. Excellent durability to washing of the (FBA/PDDA) multilayers was obtained, which indicates good adhesion between the multilayer coatings and the cotton surfaces. (C) 2010 Elsevier Ltd. All rights reserved.
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