학술논문
DCOIT@HACC-SA微胶囊的制备及应用研究 / Preparation and application of DCOIT@H ACC-SA microcapsules
Document Type
Academic Journal
Author
Source
精细与专用化学品 / Fine and Specialty Chemicals. 32(2):39-44
Subject
Language
Chinese
ISSN
1008-1100
Abstract
采用复合凝聚法,以季铵盐壳聚糖(HACC)、海藻酸钠(SA)为壳材,4,5-二氯-2-正辛基-4-异噻唑啉-3-酮(DCOIT)为芯材,合成了具有复合壳层结构的DCOIT@HACC-SA微胶囊.随后将微胶囊引入环氧改性有机硅基体(ES)中制备了功能型涂层材料(ESHS),赋予其优异的抗藻性能.结果表明:制得的DCOIT@HACC-SA微胶囊大小均一、不粘连,控释性能良好,在甲醇中浸泡12d之后释放率达到75.4％;藻液中浸泡36h,ESHS涂层上附着的小球藻个数仅为2733cells/mm2,覆盖面积仅为5.87％.ESHS功能型涂层材料有望在海洋防污等领域获得应用.
Microcapsules(DCOIT@H ACC-SA Microcapsules)with composite shell structure were successfully synthesized by complex coacervation method,using hydroxypropyltrimethyl ammonium chloride chitosan(HACC)and sodium alginate(SA)as shell materials and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one(DCOIT)as core materials.Then,the microcapsules were introduced into the epoxy-silicone based coatings to prepare functional coating materials(ESHS),which were endowed with excellent algae resistance.The results showed that the obtained DCOIT@H ACC-SA microcapsules were uniform in size without adhesion,and the controlled release performance was good.The release rate reached 75.4％after soaking in methanol for 12 days.The number of attached chlorella on the ESHS coating was only 2733 cells/mm2 and the coverage area was only 5.87％after soaking in the algae solution for 36 h,ESHS functional coating materials are expected to be widely used in marine anti-fouling and other fields.
Microcapsules(DCOIT@H ACC-SA Microcapsules)with composite shell structure were successfully synthesized by complex coacervation method,using hydroxypropyltrimethyl ammonium chloride chitosan(HACC)and sodium alginate(SA)as shell materials and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one(DCOIT)as core materials.Then,the microcapsules were introduced into the epoxy-silicone based coatings to prepare functional coating materials(ESHS),which were endowed with excellent algae resistance.The results showed that the obtained DCOIT@H ACC-SA microcapsules were uniform in size without adhesion,and the controlled release performance was good.The release rate reached 75.4％after soaking in methanol for 12 days.The number of attached chlorella on the ESHS coating was only 2733 cells/mm2 and the coverage area was only 5.87％after soaking in the algae solution for 36 h,ESHS functional coating materials are expected to be widely used in marine anti-fouling and other fields.