The demands for 3D printed materials are high and vary from application to application. For many, properties such as stability, hardness, chemical resistance and flexibility are what play a major role. For others, it is important that the printable resins used are highly reactive but will not shrink during curing. Customers are also looking for low vapor pressure and eco-friendly GHS labeling.
Evonik offer a range of specialty methacrylates that meet these requirements and can specifically target the properties of printing resins and printed materials.
Methacrylate monomers are used to produce printable resins, which then in turn are used in both established printing processes (e.g. Stereolithography (STL/SLA), Digital Light Processing (DLP), Mask Stereolithography (MSLA)/Liquid Crystal Display-Stereolithography (LCD-SLA)) and novel 3D printing techniques.
Benefits of Specialty Methacrylates in 3D Printing Resins
- Monofunctional methacrylate monomers such as VISIOMER® Terra IBOMA and VISIOMER® THFMA are well-suited to use as reactive diluent. They are ideal for dissolving oligomers and other formulation components, and for adjusting the viscosity of printing resins.
- Various di- or trifunctional methacrylate monomers varying in their chain length and hydrophilic/hydrophobic nature can be used as crosslinkers: VISIOMER® EGDMA is particularly suitable for increasing the mechanical strength of printed materials. VISIOMER® HEMATMDI is characterized by very low shrinkage. VISIOMER® 1,6-HDDMA is used when printed materials are meant to retain a certain level of flexibility. Additionally, VISIOMER® TMPTMA is a tri-functional crosslinker used where high crosslinking density isneeded.
- Tunable resin properties by functional comonomers
- Crosslinkers for improved mechanical and chemical resistance