【作者】 贺正龙； 李其峰； 王军威； 赵雨花； 亢茂青； 殷宁；

【Author】 HE Zhenglong;LI Qifeng;WANG Junwei;ZHAO Yuhua;YIN Ning;KANG Maoqing;Institute of Coal Chemistry,Chinese Academy of Sciences;University of Chinese Academy of Sciences;

【机构】 中国科学院山西煤炭化学研究所应用催化与绿色化工实验室； 中国科学院大学化学与化学工程学院；

【摘要】 在水包油的乳液体系中通过多苯基多亚甲基多异氰酸酯(PAPI)与二乙烯三胺(De TA)进行界面反应制备包覆有异佛尔酮二异氰酸酯(IPDI)的聚脲微胶囊。考察了不同浓度的表面活性剂十二烷基苯磺酸钠(SDBS)和稳定剂聚吡咯烷酮(PVP)对微胶囊颗粒尺寸的影响。通过光学显微镜对微胶囊合成过程进行了观察。采用红外对微胶囊各组分进行了表征,确定了包覆IPDI的聚脲微胶囊的合成。微胶囊的形貌通过扫描电镜进行了表征。抗腐蚀试验有效评估了微胶囊使涂层具有良好的自修复效果。更多还原

【Abstract】 Polyurea microcapusles containing isophorone diisocyanate(IPDI) as core materials were manufactured via interfacial polymerization reaction of polymeric MDI(PAPI) and triethylenediamine(DETA) in an oil-in-water emulsion.The effect of sodium dodecyl benzene sulfonate(SDBS) and polyvinyl pyrrolidone(PVP) on the particle size of the resulting microcapsuels was studied by optical microscope(OM).The synthesis process of polyurea microcapsuels was observed by OM.Fourier transform infrared spectroscopy results indicated that the polyurea microcapusles filled with IPDI was successfully synthesized.The morphology of the microcapsuels was observed by scanning electron microscope(SEM).Anticorrosion coxatings were used to evaluate self-healing protection coating system,which showed that these materials had excellent ability to recover from damage on the matrix.更多还原