Scientists develop nontoxic light-activated compounds for safer 3D printing
Researchers at Nanyang Technological University in Singapore have created a new class of nontoxic photoinitiators that improve the safety and sustainability of 3D printing processes.
New compounds replace toxic industry standards
Scientists from Nanyang Technological University developed aryl diazirine photoinitiators to address toxicity issues in current materials. The existing industry-standard compounds like TPO and BAPO have been identified as reproductive toxins. These new substances solidify liquid resins into hard plastics without harming human cells.
Improved performance with water-based resins
The study published in NPG Asia Materials shows the new compounds offer reduced material shrinkage. They also demonstrate compatibility with water-based sustainable resins which are harder to process currently. This advancement allows for faster and more precise polymerization reactions using light.
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