溶剂挥发法制备聚砜包覆桐油自修复微胶囊

发布时间：2018-02-28 10:09

  本文关键词： 聚砜 自修复微胶囊 桐油 溶剂挥发法　出处：《中国塑料》2016年05期 　论文类型：期刊论文

【摘要】：以聚砜为壁材,桐油为芯材,采用溶剂挥发法制备了聚砜(PSF)包覆桐油自修复微胶囊。考查了不同种类的分散剂、搅拌速度、芯壁比(芯材与壁材的质量比)等工艺参数对微胶囊性能的影响,通过扫描电子显微镜、光学显微镜和热重分析仪等对微胶囊的表观形貌、粒径、壁厚、包覆率和热稳定性能等进行表征。采用所合成的微胶囊制备了环氧树脂基防腐蚀涂层,并对其防腐蚀性能进行了评价。结果表明,30℃时,以明胶/聚乙烯醇复配体系作为分散剂,芯材与壁材质量比为1.3:1,搅拌速度为700 r/min时制备出的微胶囊表面光滑致密,粒径在130μm左右,热稳定温度为350℃;盐雾实验结果表明,所制备的微胶囊自修复涂层具有良好的防腐蚀性能。
[Abstract]:Using polysulfone as wall material and tung oil as core material, polysulfone (PSF) coated tung oil self-repairing microcapsules were prepared by solvent volatilization method. The effect of core / wall ratio (mass ratio of core material to wall material) on the performance of microcapsules was studied by scanning electron microscope (SEM), optical microscope and thermogravimetric analyzer (TGA). The coating rate and thermal stability were characterized. The epoxy resin based corrosion resistant coating was prepared by using the synthesized microcapsules, and its corrosion resistance was evaluated. The results showed that the coating was prepared at 30 鈩，

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