RESINA FOTO-POLIMERIZZABILE DERIVATA DA OLI NATURALI

A photo-polymerizable resin with low environmental impact is proposed, suitable for use in 3D printing with stereolithographic technique, obtained from environmentally friendly natural products, easily available and inexpensive, easily disposed of in the environment and biodegradable, such as vegetable oils, also exhausted.

The industrial resins currently on the market for stereolithographic 3D printers (which use light to print) are composed of very toxic and polluting substances, as they contain acrylate and / or methacrylate monomers. Such compounds are already known to be dangerous to human health, for example acrylate monomers can be acutely toxic if they are inhaled, ingested or come into contact with the skin. Several researches have found that 3D printed parts can be toxic, cause allergic or inflammatory reactions and infections in users. Furthermore, depending on the type of printer and the material used, potentially dangerous particles are released into the air during operation and, sometimes, also volatile compounds (VOC-Volatile Organic Compounds). Furthermore, with the increasing diffusion of 3D printers, both at professional and amateur level, the quantity of 3D printed components, and therefore of waste derived from this technology, will increase exponentially with a consequent accumulation in the environment, since users of these printers may not have the necessary training to use them safely and dispose of their waste responsibly, and municipal waste disposal agencies may not have the resources to collect and treat 3D printer waste.

The main applications of this technology are:

• 3D printing with eco-compatible materials, reusing and enhancing materials normally considered waste;
• Eco-friendly paints, coatings and adhesives to replace even very toxic and allergenic components such as acrylates.

• This invention provides the use of raw materials from renewable sources;
• The raw materials used are easy to find thanks to the variety of sources including those of recovery and reuse materials;
• Furthermore, the invention presented is eco-compatible both for the recovery of waste raw materials and for the reduced production of waste deriving from the transformation process;
• The advantage of this invention is also the low costs application.