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Enzymatic waterborne polyurethane towards a robust and environmentally friendly antibiofouling coating
Liu, Kai1,2; Su, Zhiguo1; Miao, Shida1; Ma, Guanghui1; Zhang, Songping1
2016
发表期刊RSC ADVANCES
ISSN2046-2069
卷号6期号:38页码:31698-31704
摘要A novel anti-biofouling coating was designed and prepared by directly mixing antifouling enzymes (lipase or protease) with a castor oil-based waterborne polyurethane (WPU) dispersion. Covalent incorporation of the enzymes into the WPU coating was realized via the reaction of the excessive NCO groups in WPU and the NH2 groups in the enzyme molecules as investigated using enzyme leaking and IR analysis. The incorporation of the enzymes had a plasticization effect on the WPU coating, e.g. the tensile strength decreased and elongation at break increased after addition of lipase to the WPU coating. SEM images and contact angles (CAs) analysis showed that the enzymes were evenly distributed in the coating surface. The enzymatic WPU coatings displayed robust catalytic capabilities, e.g. 70% initial activity after ten continuous usages, ca. 50% initial activity after storage at room temperature for 90 days and ca. 20% initial activity after incubating at 60 degrees C for 90 days were obtained for the WPU coating containing lipase. Additionally, the enzymatic WPU coating afforded a self-cleaning ability against lipid and protein stains. This robust and environmentally friendly enzymatic WPU coating may provide a new strategy for resisting biomolecular contaminations.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c6ra04583a
收录类别SCI
语种英语
关键词[WOS]SURFACES ; POLYMER ; FILMS ; COMPOSITES ; SUPEROLEOPHOBICITY ; NANOPARTICLES ; PATTERNS ; OIL
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Natural Science Foundation of China(21376249 ; 973 Program(2013CB733604) ; National Major Scientific Equipment Development Project(2013YQ14040508) ; 21336010 ; 20976180)
WOS记录号WOS:000373685500014
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20992
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Liu, Kai,Su, Zhiguo,Miao, Shida,et al. Enzymatic waterborne polyurethane towards a robust and environmentally friendly antibiofouling coating[J]. RSC ADVANCES,2016,6(38):31698-31704.
APA Liu, Kai,Su, Zhiguo,Miao, Shida,Ma, Guanghui,&Zhang, Songping.(2016).Enzymatic waterborne polyurethane towards a robust and environmentally friendly antibiofouling coating.RSC ADVANCES,6(38),31698-31704.
MLA Liu, Kai,et al."Enzymatic waterborne polyurethane towards a robust and environmentally friendly antibiofouling coating".RSC ADVANCES 6.38(2016):31698-31704.
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