Fabrication of water-repellent polyester textile via dip-coating of in-situ surface-modified superhydrophobic calcium carbonate from dolomite

被引：18
作者：
Abeywardena, M. R. [1 ,2 ]
Yashomala, M. A. D. H. [3 ]
Elkaduwe, R. K. W. H. M. K. [1 ,2 ]
Karunaratne, D. G. G. P. [2 ]
Pitawala, H. M. T. G. A. [4 ]
Rajapakse, R. M. G. [5 ]
Manipura, A. [2 ]
Mantilaka, M. M. M. G. P. G. [1 ]
机构：
[1] Univ Peradeniya, Postgrad Inst Sci, Peradeniya 20400, Sri Lanka
[2] Univ Peradeniya, Dept Chem & Proc Engn, Peradeniya 20400, Sri Lanka
[3] Univ Sri Jayewardenepura, Dept Phys, Nugegoda, Sri Lanka
[4] Univ Peradeniya, Fac Sci, Dept Geol, Peradeniya 20400, Sri Lanka
[5] Univ Peradeniya, Fac Sci, Dept Chem, Peradeniya 20400, Sri Lanka
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2021年 / 629卷
基金：
美国国家科学基金会;
关键词：
Polyester fabric; Superhydrophobic calcium carbonate; Stearic acid; Self-cleaning surface; Hydrophobic and superhydrophobic polyester; fabrics; HYDROPHOBIC CACO3; STEARIC-ACID; WETTABILITY; PARTICLES; STABILITY; FILMS;
D O I：
10.1016/j.colsurfa.2021.127397
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Incorporating hydrophobic and superhydrophobic properties in textile surfaces has gained significant scientific and industrial attention due to its potential applications in outdoor wear and protective textiles. In this study, we have developed a novel, cost-effective and facile process to transform water-absorbing polyester fabric into a water-resistant textile which exhibits hydrophobicity by applying an ultra-thin layer of surface-modified superhydrophobic precipitated calcium carbonate (SHPCC) by dip-coating method. Dolomite was used as the calcium precursor for synthesizing SHPCC while stearic acid (SA) was used as the surface modifier for calcium carbonate and surface binder of synthesized SHPCC to the textile. The wetting property and surface morphology of the treated fabrics were characterized using contact angle/sliding angle measurements, FE-SEM, FTIR and TG analysis. Results show that the wettability of the fabric has been diminished to different hydrophobic and superhydrophobic levels under varying experimental conditions such as ageing time, SA and SHPCC particle concentration. The hydrophobic layer exhibits self-cleaning behavior and it retains with reasonable durability under tested conditions of mechanical abrasion and washings.
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页数：12
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