Plasma TECHNOLOGIES CAN BE USED in many ways
Atmospheric pressure plasma treatment facilitates surface preparation operations prior to bonding, painting, varnishing or cleaning steps – a boost that rapidly spread in all industrial sectors.
Here below are some examples.
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AcXys Technologies has the expertise and experience to offer solutions that will smoothly integrate your production lines and meet your specific requirements.
Main applications for atmospheric pressure plasma treatment
Plasma treatment will not only remove organic residues on the material surface, but also bring new chemical functions that will drastically increase surface wettability for glues, inks, paints and varnishes.
The treatment is also a smart way to reduce the use of chemical compounds – more than often sources of environmental pollution (COVs).
The materials suitable for an efficient plasma treatment are incredibly various: metals, glass, papier, cardboard, polymers (Polypropylene, polycarbonate, polyethylene, PVC…), composite materials…
Surface cleaning and decontamination
A treatment with atmospheric plasma is an efficient and effective way to finish clean materials’ surface as it removes thin layers of organic or oil-based molecules.
For example, water-soluble oil residues found on aluminium surfaces can be removed within seconds thanks to plasma cleaning. Treated parts are almost immediately available for the next steps.
Copper oxide reduction
Plasma activation prior to bonding
This surface treatment will change the nature of the interface failure : from adhesive, the sealing becomes cohesive hence reaching high breaking strengths.
Left: easy adhesive failure
Right: cohesive failure
Plasma activation prior to injection molding
In order to reach its full potential and technical objectives, operating injection molding on a material requires a flawless adhesion of the upper layer onto the under layer.
Because a treatment with atmospheric pressure plasma brings flexibility and an extraordinary ability to be applied on various shapes and materials – this simple solution is highly compatible with running production lines and overmolding procedures.
ULD plasma activation on aluminium prior to an overmolding procedure
Plasma activation prior to marking and decorating steps
Microscope view of a drop on paper before and after plasma treatment
Plasma treatment prior to painting or varnishing operations
Variation of the contact angle of a drop on polyethylene before and after treatment
Thin layers deposit
Injecting a carefully picked precursor into plasma will lead to the influx of a homogeneous thin layer that will deposit onto the treated surfaces.
When carried out in an atmospheric pressure environment, the CVD (chemical vapor deposition) will be generated at low, or room temperature – on any material.
Atmospheric plasma process enables material deposits on plastic, composite, metal or glass surfaces.
Applications for this process are vast – and sometimes remain unexplored. Deposited layers onto materials open new areas for enhanced functionalities.
Silicium deposits (SiOx) is now a well-known and attractive process to consider for the following applications:
- Apply an amines-based primer layer (NH2)
- Add optical features
- Add anticorrosive layer on metallic surfaces