AI Article Synopsis
- PDMS (silicone elastomers) are popular for medical devices because they are thermally stable but traditional manufacturing has issues like high costs and complex production.
- To improve this, researchers created a new type of PDMS (PDMSUMA) designed for 3D printing, focusing on how the blend of PEGDMA and HEMA affects its properties.
- The study showed that adding PEGDMA not only makes the resin easier to print but also enhances its thermal and mechanical properties, paving the way for customizable shape memory materials.
Article Abstract
Polydimethylsiloxane (PDMS) or silicone elastomers have garnered considerable attention in the field of medical device applications due to their superior thermal stability. However, conventional manufacturing techniques for silicone elastomers suffer from drawbacks such as cost, lengthy production time, and inherent difficulties in fabricating complex structures. To address these limitations, photosensitive polydimethylsiloxane urethane methacrylate (PDMSUMA) oligomers were synthesized, and their curing behaviors were specifically investigated for vat photopolymerization 3D printing applications. The study focused on exploring the impact of weight ratios between poly(ethylene glycol) dimethacrylate (PEGDMA) and 2-hydroxyethyl methacrylate (HEMA) in the PDMSUMA resin formulation. The addition of PEGDMA as a reactive diluent was found to enhance the printability of the PDMSUMA resin and decrease its viscosity. Thermal, mechanical, and shape memory properties of the 3D-printed specimens were examined. Our findings demonstrate the potential of PDMSUMA resins for developing customizable shape memory materials with tailored properties.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10795029 | PMC |
| http://dx.doi.org/10.1021/acsomega.3c08102 | DOI Listing |
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