超疏水HDPE/EPDM TPV表面的结构与性能  

Microstructure and Properties of Superhydrophobic Surfaces of HDPE/EPDM Thermoplastic Vulcanizate

作　　者：单秀 王君豪 张凯 王稳启 王兆波[1] SHAN Xiu;WANG Jun-hao;ZHANG Kai;WANG Wen-qi;WANG Zhao-bo(Qingdao University of Science Technology,Qingdao 266042,China;Shandong University,Weihai 264209,China;Zhuzhou Times New Material Technology Co.,Ltd.,Hunan 412007,China)

机构地区：[1]青岛科技大学材料科学与工程学院,山东青岛266042 [2]山东大学(威海)机电与信息工程学院,山东威海264209 [3]株洲时代新材料科技股份有限公司,湖南株洲412007

出　　处：《特种橡胶制品》2021年第4期1-5,18,共6页Special Purpose Rubber Products

基　　金：国家级大学生创新创业训练计划项目(S202010426040);山东省自然科学基金(ZR2017MEM021)。

摘　　要：采用金相砂纸打磨及盐酸(HCl)溶液刻蚀的铝箔为模板,以高密度聚乙烯(HDPE)/三元乙丙橡胶(EPDM)热塑性硫化胶(TPV)为原材料,通过模板法在TPV表面构建出超疏水表面,并对其表面结构与超疏水行为进行了研究。FE-SEM表明,经模压和模板剥离后的TPV表面产生了大量塑性形变,获得复杂的粗糙结构;润湿性测试显示,该TPV粗糙表面与水的接触角大于150°,且滚动角小于5°,根据Cassie模型计算出超疏水表面与水的接触界面中气-液界面的面积分数超过85%,表现出良好的超疏水性能。Superhydrophobic surfaces were constructed by molding method using the aluminum foil template which was sanded by metallographic sandpaper and etched by hydrochloric acid(HCl)solution,and high-density polyethylene(HDPE)/ethylene propylene diene monomer(EPDM)rubber thermoplastic vulcanizate(TPV)as raw material,and the surface structure and superhydrophobic behavior were studied.FE-SEM observation showed that the TPV surface had a large number of plastic deformation after molding and stripping,achieving high structure roughness surface.Wettability test showed that the contact angles were about 150°while the rolling angles were less than 5°between the TPV surface and water.According to the Cassie model,the percent of the gas-liquid interface was more than 85%in the contact interface between TPV surface and water drop,leading to excellent superhydrophobic properties of the molded TPV.

关 键 词：热塑性硫化胶 超疏水表面 铝箔 模板法 

分 类 号：TQ333.4[化学工程—橡胶工业] TQ334