Effect of roughness on adhesion of polymeric coatings used for microgrippers

✍ Scribed by N. Balabanava; R. Wierzbicki; M. Zielecka; Z. Rymuza

• Publisher: Elsevier Science
• Year: 2007
• Tongue: English
• Weight: 573 KB
• Volume: 84
• Category: Article
• ISSN: 0167-9317
• DOI: 10.1016/j.mee.2007.01.183

✦ Synopsis

The purpose of the work was to examine the influence of topography and materials parameters on the value of pull-off force (adhesion) with future application of obtained results to solve the adhesion problem in microhandling. The research consists of two parts: theoretical and experimental. In theoretical research the model of contact, which takes into account the roughness of the contacted bodies is presented. In experimental part polymeric films with low surface energy were investigated as a solution to decrease adhesion at the gripping surface of the micromanipulator. To introduce surface roughness into the solution of polymers the nanoball structures (nanoparticles) were mixed. In result of these modifications three polymer samples were made: with density of nanoballs in the volume 2%, 5% and 10%. In result of these studies the dependences concerning the influence of the roughness on the adhesion were obtained.