

Among the polymers obtained from the polymerization of aldehydes, POM is the only one that could reach commercial significance. As formaldehyde was initially the raw material used in the manufacturing of commercial POM it is also referred to as polyformal or polyacetal.

Hence, such polymers are used to serve as an alternative to metals. Polyoxymethylene (POM) is a semicrystalline polymeric material belonging to engineering thermoplastics because of its low friction and wear characteristics and its excellent balance of mechanical properties and chemical resistance to most solvents, chemicals and fuels at room temperature. The best of the plasma treatments that have been used has improved the adhesion of the POM samples of the present work by more than 30%. The present communication describes the work related to the improvement of the adhesion of the first layer of a POM part on a polycarbonate support bed using cold atmospheric plasma. This difficulty is known and profusely described in numerous publications in the field of 3D printing. The main drawback of POM is that it has self-lubricating capabilities that complicate the adhesion of the first layer that is printed on the support bed. When trying to improve the mechanical capabilities of printed parts, materials like polyoxymethylene (POM) or acetal are used.

The most commonly used materials are polyactic acid (PLA), of vegetable origin, and acrylonitrile butadiene styrene (ABS), derived from petroleum. It started in the 80s with commercial machines of high cost, but in the last decade it has had a very dynamic evolution thanks to the proliferation of domestic 3D printers. 3D printing is a relatively recent technique for part manufacturing. 3D printing consists in the manufacture of three-dimensional objects from a digital model.
