Preparation and application of biodegradable and superhydrophobic polylactic acid/carnauba wax coating

被引：24
|
作者：
Wang, Xiaotong [1 ]
Chen, Kexuan [1 ]
Liu, Yuan [1 ]
He, Ren [2 ]
Wang, Qi [1 ]
机构：
[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Polymer Res Inst, Chengdu 610065, Peoples R China
[2] China Acad Engn Phys, Mianyang 621900, Peoples R China
来源：
PROGRESS IN ORGANIC COATINGS | 2023年 / 177卷
基金：
中国国家自然科学基金;
关键词：
Superhydrophobic; Biodegradable; Polylactic acid; Carnauba wax; Coating; Application; CARNAUBA WAX; FLUORINE-FREE; WATER; SURFACE; FABRICATION; ROBUST; WETTABILITY; SEPARATION; PAPER; FUNCTIONALIZATION;
D O I：
10.1016/j.porgcoat.2023.107434
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A biodegradable superhydrophobic polylactic acid-carnauba wax (PLA/CW) coating was fabricated via a simple spray-coating method. The PLA/CW coating displayed excellent superhydrophobicity, low contact angle hys-teresis (waster contact angle at 160.4 degrees and water sliding angle at only 6 degrees) and superior heat resistance, due to the low surface energy of CW and high melting point of PLA. The obtained coating also showed capability in application of self-cleaning, aqueous-liquid-residues reduction and oil-water separation. Compared with the conventional superhydrophobic materials involving complicated methods and hardly-degradable materials, PLA/CW coating is fully biodegradable with simple and low-cost fabrication method. We believe that such a PLA/CW coating opens up opportunities for efficient fabrication of biodegradable superhydrophobic coating and exhibits promising potential in commercial use.
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页数：11
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