In the recently published ‘ Recent Advances on Visible Light Metal-Based Photocatalysts for Polymerization under Low Light Intensity ,’ French researcher Frédéric Dumur investigates 3D printing processes activated by light, reviewing a variety of photocatalytic systems developed for polymerizations carried out under a low light intensity and visible light.
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Photochemical reactions happen when materials that are light-sensitive are ‘excited’ by light, causing either the cleavage of a chemical bond or the production of radicals. As users continue to be concerned about toxicity and the environment, however, there has been an enormous push to reduce the use of dangerous substances—reaching toward photochemistry.
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Dumur points out that many photochemical reactions can be achieved without toxins. Advantages of photopolymerization. (A) Fast monomer conversion vs. time. (B) Spatial control of the polymerization by use of a mask. Reprinted with permission of Poelma et al. [20]. Copyright © 2013 John Wiley & Sons, Inc. […]
Case Study: How PepsiCo achieved 96% cost savings on tooling with 3D Printing Technology
Above: PepsiCo food, snack, and beverage product line-up/Source: PepsiCo PepsiCo turned to tooling with 3D printing...
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