Study on properties of fish scale biomimetic fluororubber prepared by template method

In order to understand the influence of FKM surface morphology on wetting performance and tribological properties under high temperature conditions. According to the phenomenon of reducing resistance in the water of natural fish scales, we prepared the FKM with a convex structure using a 2800 mesh screen (which is called 2800FKM), by hot pressing and template replication, based on the fish-scales bionic structure. At 25 °C and 150 °C, the contact angle and rolling angle of the 2800FKM surface were measured, and then we evaluate the bounce behavior and self-cleaning performance of the 2800FKM surface. Finally, under the condition of dry friction and grease lubrication friction, the wear mechanism of 2800FKM was studied by SEM. The results show that compared with FKM, 2800FKM has excellent wetting performance (Contact angle = 143.51°) and heat retention rate (98.89%), and self-cleaning. Compared with FKM, 2800FKM has better anti-wear and antifriction performance under dry friction conditions, and no noticeable wear marks are found under grease lubrication conditions. The main factor of 2800FKM's excellent wetting performance and anti-wear and antifriction function is the fish scale bionic structure. The preparation of 2800FKM provides a new idea for exploring wear-resistant materials with bionic fish scale structure.