摘要
以DMBA为亲水剂,并引入纳米SiO_(2)提升乳液涂膜综合性能,制备WCCDA/SiO_(2)纳米复合乳液,并分析研究了纳米SiO_(2)的作用机理。结果表明:WCCDA/SiO_(2)纳米复合乳液的最佳合成工艺为纳米SiO_(2)粒径8 nm、纳米SiO_(2)质量分数1.00%、CDA质量分数27.0%。WCCDA/SiO_(2)纳米复合乳液涂膜表面致密光滑,柔韧性、附着力、耐水性、耐黄变性、机械性能和热稳定性良好。WCCDA/SiO_(2)纳米复合乳液成膜时,在涂膜表面形成许多细小的“凸起”,产生荷叶效应,提高涂膜耐水、耐介质及耐黄变等性能。
WCCDA/SiO_(2)nano-composite emulsion was prepared by using DMBA as a hydrophilic agent,Nano-SiO_(2)was introduced into the system to improve the comprehensive performance of emulsion coating,and the interaction mechanism of nano-SiO_(2)was studied.The results showed that the optimal process of WCCDA/SiO_(2)nano-composite emulsion was as follows:mass fraction 1.00%of nano-SiO_(2)(8 nm),mass fraction 27.0%of CDA.The coating surface was compact and smooth,and the flexibility,adhesion,water resistance,yellowing degeneration resistance,mechanical properties and thermal stability were excellent.When WSCDA/SiO_(2)nano-composite emulsion film was formed,many small'mastoids'were formed on the surface of the coating film,resulting in lotus leaf effect,improving the water resistance,medium resistance and yellowing resistance of the coating film.
作者
张婧
王莹
鲍艳
ZHANG Jing;WANG Ying;BAO Yan(Xianyang Vocational and Technical College,Xianyang Shaanxi 712000,China;College of Bioresources and Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi’an Shaanxi 710021,China)
出处
《当代化工》
CAS
2024年第6期1291-1299,共9页
Contemporary Chemical Industry
基金
陕西省教育厅一般项目(项目编号:23JK0720)。
