Hi,
I need to use Poly(ethylene glycol) diacrylate - PEGDA for 3D printing and it's required to have have high viscosity. Would you please suggest me the suitable MW of PEGDA and where to buy it for 3D printing?
Thank you.
Dear Tran,
Try to get it through www.ebay.com:
PETG/TPU/Holt PLA (Composite PLA) PLA/ABS 1.75mm /3mm…
US $13.79
Best regards
Milan
Hi Ngoc
I always buy it from Sigma Aldrich. They have a very vast offer of PEGS. Depending on what you are trying to achieve and other parameters, the Mw has to match the properties of your desired material. The more MW, the more viscous your polymer will be, but depending on the proportions, you may end up with something brittle and easy to break. This will be enhanced if you have functional groups like diacrylates or triacrylates. The more functionality, the more efficient they will be on the reaction.
It will very much depend on your experiment. Try to think in which properties you want to go for, and bear in mind the glass transition temperatures of your polymers (specially if you want to mix the PEG with something else).
Hope this helps
Noe
What kind of 3D-Printing do you have in mind?
Classic Fused Deposition Modeling where a filament is melted or kind of Bioprinting using a viscous solution or 2-component mixture?
Hello,
Thanks for your answers. Actually, I need to use a bio acrylate-based polymer ans use as a viscous solution for printing the 3D scaffold.
Hello everyone,
I also had similar doubts. I have started using PEGDA 250 mixed with nanoparticles for SLA printing to fabricate composite mechanical devices. This works, but I wanted to know if I use PEGDA 700, is it better for thermomechanical applications or I should stick with PEGDA 250?