期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 55, 期 23, 页码 6671-6676出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.6b01003
关键词
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资金
- Ministry of Science and Technology of China [2012CB933802]
- National Natural Science. Foundation of China [51573061, 51303059]
Polydimethylsiloxane (PDMS)-based coatings are environment friendly systems for marine fouling release. However, they usually exhibit low adhesion to substrate and poor mechanical properties, which limits their applications. We have developed polyurea (PUa) with PDMS as soft segments and 1,6-hexanediamine as hard segments via-a polycondensation reaction. Such polyurea (PDMS-PUa-x) is hydrophobic with water contact angle above 90 degrees and has low surface energy (25-29 mJ.m(-2)). In particular, its adhesion to the substrate (>1.0 MPa) and modulus (>80.0 MPa) are significantly improved in Comparison with those of PDMS coatings. Laboratory bioassay and marine field tests demonstrate that PDMS-PUa-x has good fouling release performance.
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