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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
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume6Issue:38Pages:31698-31704
AbstractA 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c6ra04583a
Indexed BySCI
Language英语
WOS KeywordSURFACES ; POLYMER ; FILMS ; COMPOSITES ; SUPEROLEOPHOBICITY ; NANOPARTICLES ; PATTERNS ; OIL
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China(21376249 ; 973 Program(2013CB733604) ; National Major Scientific Equipment Development Project(2013YQ14040508) ; 21336010 ; 20976180)
WOS IDWOS:000373685500014
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20992
Collection生化工程国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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