CAJ | 학술논문

采用一种简单的方法制备出了硅橡胶超疏水性表面;将模具内表面做成一定的粗糙度;按照常规成型工艺,将液体硅橡胶浇注在模具内使其固化,待固化完毕后脱去模具,得到不同粗糙度的表面.经过接触角测量仪测定和扫描电子显微镜分析,结果表明:当硅橡胶表面粗糙度Ra=6.63 μm时,在其表面形成了类似于荷叶的乳突结构;在乳突表面还有亚微米级的小颗粒存在,形成了微米亚微米两级的粗糙结构,材料表面与水的静态接触角为153.5°,滚动角为8°,材料具有超疏水性;当硅橡胶表面粗糙度 Ra<6.63 μm时,材料表面的静态接触角随着表面粗糙度的增加而增加,当Ra=6.63 μm,静态接触角出现最大值153.5°.当表面粗糙度Ra>6.63 μm,材料表面的静态接触角随着表面粗糙度的增加而减小.
채용일충간단적방법제비출료규상효초소수성표면;장모구내표면주성일정적조조도;안조상규성형공예,장액체규상효요주재모구내사기고화,대고화완필후탈거모구,득도불동조조도적표면.경과접촉각측량의측정화소묘전자현미경분석,결과표명:당규상효표면조조도Ra=6.63 μm시,재기표면형성료유사우하협적유돌결구;재유돌표면환유아미미급적소과립존재,형성료미미아미미량급적조조결구,재료표면여수적정태접촉각위153.5°,곤동각위8°,재료구유초소수성;당규상효표면조조도 Ra<6.63 μm시,재료표면적정태접촉각수착표면조조도적증가이증가,당Ra=6.63 μm,정태접촉각출현최대치153.5°.당표면조조도Ra>6.63 μm,재료표면적정태접촉각수착표면조조도적증가이감소.
In this paper, we report on a simple method to prepare superhydrophobic surface on silicone rubber. Different surface roughness was formed along the mold inner surfaces. Then the liquid silicone rubber was molded in the mold with the standard molding processing. After consolidation was accomplished completely and the mold was released, surface with different roughness was obtained. By exterminating contact angles and scanning electron microscopy observation, we found when the roughness of the surface Ra was 6.33 μm, a similar mastoid microstructure with lotus leaves was formed on the silicone rubber surface. There were some sub-micron particles on the mastoid. Micron and sub-micron rough structures were formed. The static contact angle obtained was 153.5° and the rolling angle was 8°. When the surface roughness Ra was less than 6.63 μm, the static surface contact angle increases with the surface roughness increasing, when the surface roughness Ra was 6.63 μm, the static contact angle was largest. The maximum value was 153.5°. When the surface roughness Ra was more than 6.63 μm, surface static contact angle decreases with the surface roughness increasing.