Synthesis and characterization of caprolactone based polyurethane with degradable and antifouling performance
Synthesis and characterization of caprolactone based polyurethane with degradable and antifouling performance作者机构:College of Chemical and Biological EngineeringZhejiang Provincial Key Laboratory of Advanced Chemical EngineeringManufacture TechnologyZhejiang UniversityHangzhou 310027China Ningbo Research InstituteZhejiang UniversityNingbo 315100China
出 版 物:《Chinese Journal of Chemical Engineering》 (中国化学工程学报(英文版))
年 卷 期:2021年第34卷第6期
页 面:299-306页
核心收录:
学科分类:0710[理学-生物学] 0830[工学-环境科学与工程(可授工学、理学、农学学位)] 081702[工学-化学工艺] 0817[工学-化学工程与技术] 08[工学] 0703[理学-化学]
基 金:supported by the National Natural Science Foundation of China(21776249 21878267 21576236)
主 题:Antifoulant 4 5-dicholoro-2-octyl-isothiazolone Degradable polyurethane L-Lactide Caprolactone
摘 要:In this work,a degradable polyurethane composed of caprolactone(CL)and L-Lactide(LLA)as soft segments,and 4,40-methylenebis(cyclohexyl isocyanate)(H12 MDI)and polytetramethylene ether glycol(PTMEG)as hard segments,was *** degradation experiment revealed that the degradable polyurethane(PU)could be degraded in artificial *** also showed that caprolactone-copolyurethane(CL-PU)copolymer with higher crystallinity degraded much slower in artificial ***,the introduction of LLA resulted in an increase in the hydrophilicity and reduction in the crystallinity of degradable PU,as demonstrated by the contact angle *** result of the scanning electron microscope showed that the surface of degradable PU renewed under static ***,degradable PU was able to be used as a carrier,and it controlled the release rate of 4,5-dichloro-2-octyl-isothiazolone(DCOIT).The anti-diatom(Navicula incerta)test demonstrated that the(caprolactone-co-L-lactide)-co-polyurethane 4(CL/LAx-PU4)with DCOIT contents prevented the adhesion of diatom Navicula incerta(88.37%reduction)due to their self-polishing and the release of ***,the degradable PU consisted of CL,LLA,and DCOIT could be a durable resin with good antifouling activity for the application in the marine anti-biofouling field.