The expansion of 3D printing into rapid manufacturing applications and strong market demand for next-generation oligomers, has been coupled with an increased demand for materials with a wide variety of physical properties. Rigid materials, with high tensile strength and low elongation, are readily available, but offerings of tough, flexible materials with high elongation are more limited.
As more and more manufacturers look to replace traditional mass manufacturing processes with 3D printing, they are striving to create new, higher quality printing materials that overcome problems with deformation, have superior surface quality, and provide better mechanical properties.
From a commercial perspective, 3D printing is very appealing, especially in applications where only relatively small number of parts are required. Additionally, strong market demand for next-generation oligomers for formulating inks and resins used in SLA, DLP, and 3D inkjet printers has been coupled with an increased need for materials with a wide variety of physical properties. However, there are several challenges preventing the realization of this potential; speed of manufacturing and meeting material performance properties being the most important.
Widely used as the backbone of UV-curable 3D-printing formulations for SLA, DLP, and 3D inkjet printers, oligomers are combined with monomers, additives, and UV-reactive photoinitiators to produce UV-curable 3D-printing inks and resins. The formulation of these products requires a focus on bulk properties of the cured material such as tensile strength and elongation. Rigid printing materials are readily available, but offerings of tough, flexible products with high elongation and good impact resistance and rebound capability are more limited. A selection of Bomar® oligomers from Dymax Oligomers & Coatings were designed with these 3D printing needs in mind, including toughness, low shrinkage, thermal stability, and low color.
This selection consists of next-generation oligomers with varying Tgs that allow for flexibility in mechanical properties. Formulators looking to eliminate object deformation can select an oligomer with a high Tg and low linear shrinkage. The oligomers also cover a large range of viscosities, so formulators can achieve the flow characteristics they desire. In addition to the mechanical properties these products provide, they also are non-yellowing for higher clarity and offer color stability for better looking objects. Formulations that utilize Bomar oligomers also gain high impact resistance, making them more durable against dropping and every day wear. Additionally, oligomers for thin film applications like coatings or inks may not necessarily have the same balance of properties that Bomar oligomers can provide.
Features & Benefits of Bomar® Oligomers
- Excellent mechanical properties for products that can be used in applications beyond prototyping
- Superior surface quality and deformation resistance for better aesthetics
- High impact resistance for more durable products
- Variety of viscosities for desired flow characteristics
Light-Curing Equipment for 3D Printing Post Cure and Rework
After a 3D model is built, it may be necessary to supply additional curing energy to the part to ensure that optimized material properties are achieved. Dymax offers UV light-curing flood lamp systems for post-curing and spot lamp systems for rework and repair of 3D-printed models.
If you want to learn more about next-generation 3D printing oligomers, download our white paper “New Developments in Acrylate Oligomers for 3D Printing.”
You May Also Like
Generative Design, Digital Twin, WAAM 3D Printing Used to Optimize Industrial Robot Arm
3D printing specialist MX3D has been working on a metal AM technology to create large items, such as bicycles and bridges, using robots. Now, the Dutch startup has partnered up...
Siemens and CEAD Develop Hybrid 3D Printing Robotic Arm
3D printing with continuous reinforcement fibers, like carbon fiber, is just now starting to come into its own, with numerous startups developing their own unique approaches to the concept. Their...
3D Print the New Youbionic Human Arm at Home or Through a Service
Youbionic, founded in 2015, has recently released its new Human Arm. The wildly creative Italian tech startup is on a mission to accentuate already sophisticated technology around the world, while...
Developing 3D Printed Soft Actuators for Robotic Arms
As 3D printing and electronics continue to advance—along with robotics—soft actuators are becoming a great subject of study, as thesis student Hong Fai Lau outlines in the recently published ‘3D-Printed...
View our broad assortment of in house and third party products.