access icon free Hot embossing of anodic aluminium oxide on high-density polyethylene: a deeper understanding based on hard surface coating

A thick anodic aluminium oxide (AAO) was used as a laminated hard coating film on high-density polyethylene (HDPE) without a binder. This thick alumina surface has a large number of polymeric nanofibers rooting inside which makes it a composite between polymer fibre and alumina. The AAO-coated film was crystalline gamma-Al2O3 and its Vickers hardness was higher than super alloy and martensitic stainless steel which has a durable and wear resistance surface despite the substrate is still a lightweight polymer. The film surface was firmly adhered to the polymer substrate. Therefore, it can be applied in many applications which require an extreme hard coating such as a transparent hard film or a special made polymer knife in which the sharpness is hardly worn out.

Inspec keywords: polymer films; nanofibres; embossing; Vickers hardness; wear resistance; laminates; alumina; wear resistant coatings; polymer fibres

Other keywords: high-density polyethylene; Vickers hardness; anodic aluminium oxide; sharpness; polymeric nanofibers; Al2O3; laminated hard coating film; hot embossing; polymer knife; wear resistance; hard surface coating

Subjects: Fatigue, brittleness, fracture, and cracks; Fatigue, embrittlement, and fracture; Tribology; Surface treatment and degradation of polymers and plastics; Friction, lubrication, and wear

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http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2017.0543
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