Page 57 - 精细化工2019年第10期

第 36 卷第 10 期 精 细 化 工 Vol.36, No.10
2019 年 10 月 FINE CHEMICALS Oct. 2019

功能材料
定向防粘附润滑涂层制备及其性能

乔燕芳 1,2 ，王利强 1,2*

（1. 江南大学 机械工程学院，江苏 无锡 214122；2. 江苏省食品先进制造装备技术重点实验室，江苏 无
锡 214122）

摘要：通过仿生猪笼草的润滑表面和稻叶表面的导向结构，制备了一种工艺简单、双疏、定向防粘附的润滑涂
层。利用砂纸以相同方向在 PP 表面打磨得到导向性微结构。对此结构进行紫外/臭氧处理、化学沉积
1H,1H,2H,2H-全氟辛基三氯硅烷、灌注全氟聚醚制备了润滑表面。分别用 SEM、粗糙度测量仪和接触角测量仪，
对涂层进行了表征和分析。结果表明，在 PP 表面定向打磨得到的“沟槽”微结构为存储润滑液提供了条件。当
PP 表面粗糙度 R a ≈1.891 μm 时水接触角为 135，氟硅烷沉积后水接触角为 141。浸渍润滑液后得到的 PP 润滑
涂层对水和十二烷接触角分别为 105、59，定向水和十二烷的倾斜角分别为 2、4；在蜂蜜和沐浴露中浸泡
0.5 h 后润滑涂层表面粘附量比未处理表面分别降低了 89.4%、70%。
关键词：疏水；疏油；粗糙度；定向防粘附；润滑涂层；功能材料
中图分类号：TQ630.7 文献标识码：A 文章编号：1003-5214 (2019) 10-2023-06

Preparation and Properties of Oriented Anti-adhesion Lubricating Coating

1,2
QIAO Yan-fang , WANG Li-qiang 1,2*
（1. School of Mechanical Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China; 2. Jiangsu Province Key
Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi 214122, Jiangsu,
China）

Abstract: A lubricating coating with simple process, stable chemical properties and oriented anti-adhesion
was prepared by simulating the lubricated surface of pitcher plant and the guiding structure of the surface of
rice leaf. The oriented rough microstructure was obtained by grinding the polypropylene (PP) with
sandpaper in the same direction. After the microstructure was treated by ultraviolet/ozone, 1H, 1H, 2H,
2H-perfluorooctyl trichlorosilicon was chemically deposited on it, and then perfluoropolyether was poured
into the surface microstructure to obtain the lubricating surface. SEM, roughness tester and contact angle
tester were used to analyze the coating surface. The results showed that the surface grooves obtained by
directional polishing provided conditions for storing lubricants. When the roughness (R a) of PP surface was
about 1.891 μm, the water contact angle on the PP surface was 135, and that on the fluorosilane deposited
PP surface was 141. The PP lubricating coating obtained after impregnating the lubricating liquid had the
contact angle of 105 and 59 for water and dodecane, respectively. The tilted angles of the oriented water
and dodecane are 2 and 4, respectively. After soaking in honey and shower gel for 0.5 h, the
corresponding adhesion amount of the lubricated PP coating reduced by 89.4% and 70%, respectively,
compared with the untreated surface.
Key words: hydrophobicity; oleophobicity; roughness; oriented anti-adhesion; lubricating coating;
functional materials

塑料因其成本低、性能稳定而广泛用于日化、 食品等产品的包装 [1-2] 。含有表面活性剂的日化产品

收稿日期：2019-03-11; 定用日期：2019-04-04; DOI: 10.13550/j.jxhg.20190183
基金项目：中央高校基本科研业务费专项资金（JUSRP21115）；江苏省食品先进制造装备技术重点实验室自主研究课题资助项目
（FMZ201902）
作者简介：乔燕芳（1996—），女，硕士生，E-mail：996742958@qq.com。联系人：王利强（1977—），男，教授，E-mail：wlqcom@163.com。