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题名:
Preparation of Dynamic Superhydrophobic Cotton Fabric via Radiation-induced Graft Polymerization
作者: Li, JY; Wang, ZQ; Yu, M
刊名: ACTA POLYMERICA SINICA
出版日期: 2017
期号: 2, 页码:315-320
关键词: Dynamic superhydrophobic ; Radiation-induced graft polymerization ; Cotton fabrics ; Sliding angle
DOI: 10.11777/j.issn1000-3304.2017.16273
文章类型: 期刊论文
英文摘要: With cotton fabrics as substrates, gamma-ray irradiation was used to initiate the graft polymerization of lauryl methacrylate (LMA), to attach polystyrene (PS) nanospheres to the cotton fabrics in by covalent bonding via the grafted chains, form a nano-scale coarse structure with low surface energy on the surface of cotton fabrics, and obtain dynamic superhydrophobic cotton fabrics with a low water droplet sliding angle. The grafting kinetics was studied and the degree of grafting (DG) increased regularly with the increasing of the concentration of the monomer. Therefore the DG could be controlled by changing the conditions of the graft polymerization. Fourier transform infrared spectroscopy (FTIR) analyses were carried out on the cotton fabrics after the graft and the results confirmed the presence of PS nanospheres and grafted PLMA chains on the modified cotton fabrics. Scanning electron microscopy (SEM) analysis showed that the attachment of the PS nanospheres onto the cotton fabrics led to the formation of a nanoscale coarse structure on the surface of the cotton fibers. The contact angle of water droplet on the modified cotton fabric was higher than 150 degrees, which demonstrated that the modified cotton fabrics were superhydrophobic. Relative to the cotton fabrics solely grafted with LMA, the PS nanospheres-decorated cotton fabrics had a significantly reduced water droplet sliding angle, and possessed dynamic superhydrophobicity. This should be attributed to the "lotus effect" of the surface of the modified cotton fabrics containing low surface energy and regular nano-scale roughness structure formed by the attachment of PS nanospheres. The softness of the cotton fabrics was characterized through the measurements of their flexural rigidity before and after their modification. The results showed that radiation-induced graft polymerization of LMA and the immobilization of PS nanospheres did not influence the wearability of the cotton fabrics, as it did not have a significant effect on their softness.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000397858300014
ISSN号: 1000-3304
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27416
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Li, JY,Wang, ZQ,Yu, M. Preparation of Dynamic Superhydrophobic Cotton Fabric via Radiation-induced Graft Polymerization[J]. ACTA POLYMERICA SINICA,2017-01-01(2):315-320.
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文件名: Preparation of Dynamic Superhydrophobic Cotton Fabric via Radiation-induced Graft Polymerization.pdf
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