Preparation of anti-adhesion surfaces on aluminium substrates of rubber plastic moulds using a coupling method of liquid plasma and electrochemical machining

Abstract

Hard anti-adhesion surfaces, with low roughness and wear resistance, on aluminium substrates of rubber plastic moulds were fabricated via a new coupling method of liquid plasma and electrochemical machining. With the aid of liquid plasma thermal polishing and electrochemical anodic dissolution, micro/nano-scale binary structures were prepared as the base of the anti-adhesion surfaces. The anti-adhesion behaviours of the resulting aluminium surfaces were analysed by a surface roughness measuring instrument, a scanning electron microscope (SEM), a Fourier-transform infrared spectrophotometer (FTIR), an X-ray diffractometer (XRD), an optical contact angle meter, a digital Vickers micro-hardness (Hv) tester, and electronic universal testing. The results show that, after the liquid plasma and electrochemical machining, micro/nano-scale binary structures composed of micro-scale pits and nano-scale elongated boss structures were present on the sample surfaces. As a result, the anti-adhesion surfaces fabricated by the above coupling method have good anti-adhesion properties, better wear resistance and lower roughness.

Fabrication of anti-adhesion surfaces on aluminium substrates of rubber plastic moulds using electrolysis plasma treatment

“…Moreover, previous studies often only focus on the adhesion behaviour of mould surfaces, without regard for wear resistance, corrosion resistance and other properties. [15][16][17][18][19][20] In this paper, an anti-adhesion surface with a water contact angle of 167…”

Preface: Micro-Nano Technology

“…4 On the fabrication side, polyimide sacrificial layers with inclined sidewalls based on reactive ion etching, 5 silicon nanotip arrays with high aspect ratio based on cesium chloride self-assembly and dry etching, 6 anti-adhesion surfaces on aluminium substrates of rubber plastic moulds using a coupling method of liquid plasma 7 and electrochemical machining and super-hydrophobic surfaces on aluminum alloy substrates by RFsputtered polytetrafluoroethylene coatings are presented. 8 Laser-heating wire bonding on MEMS packaging, 9 Spray-coating process in preparing PTFE-PPS composite super-hydrophobic coating 10 and pulse electrodeposition of Fe-Ni alloy are researched; 11 Besides, synthesis of silver particles on copper substrates using ethanol-based solution for surface-enhanced Raman spectroscopy is introduced.…”