Spanish raw material manufacturer recreation has launched its newest thermoplastic filament – PP3D (polypropylene). Notoriously difficult to print on, the material contains a primer that must be applied to the build bed before each print. Recreus claims that the primer enables easy printing on the polypropylene filament, thus allowing “maximum adhesion of the material to the bed”.
Chemical resistant and durable
Because of its chemical resistance and longevity, polypropylene is suitable for a range of household and industrial applications. We often see the material used for food and beverage containers, chemical packaging (like bleach bottles), medical syringe components, and even for the dashboards of cars. For engineering companies that want to 3D print the material, PP3D is suitable for functional prototypes that require electrical insulation, heat resistance, acid resistance, salt resistance, and oil resistance. According to Recreus, PP3D complies with European guidelines for materials that come into contact with food, although 3D printing of food containers is generally not recommended, regardless of the material.
The filament was developed with the help of a polyolefin specialist Repsoland is currently offered in black and white. The recommended printing temperature is 235 ° C with a print speed of 40 mm / s.For a full list of recommended parameters, see Here.
Parts 3D printed with PP3D. Photo via Recreus.
Recreus PP3D primer
Apparently the Recreus polypropylene filament differs from the others by the inclusion of the special primer in the box. The primer ensures adhesion and prevents warping and deformation during the printing process. It is worth noting that the primer reaches maximum adhesion at only 40 ° C and peel off at 80 ° C, allowing users to work with extremely low bed temperatures. This reduces energy consumption and extends the life of the heated components in the printer.
In order for the primer to be successful, it is recommended that the user wait five minutes after application to allow the primer to dry on the bed. During the printing process, the bed should be set to 40 ° C. When the part is finished and rotated to 85 ° C, the printed part is completely released with minimal force.
Recreus PP3D primer. Photo via Recreus.
As 3D printing systems advance, so do the filaments we use with them. Published earlier this year a study by Researchers from the Beijing University of Chemical Technology details the development of a Polycaprolactone (PCL) -based composite filament infused with starch for use with low temperature FDM machines. The researchers then functionalized the filament by adding bioactive ingredients and giving it antibacterial properties. Elsewhere, in a US Army materials laboratory, a new one high strength multipolymer filament It is designed for use with inexpensive 3D printers.
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The image shown shows parts 3D printed with PP3D. Image via Recreus.