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NIR Induced Photopolymerization: Alternative to Conventional Radiation Curing Technology

Inventing a new light source for overcoming the disadvantages of conventional radiation curing technology is essential. Upconversion particles capable of emitting photon span from ultraviolet to NIR region of electromagnetic spectrum under excitation of NIR laser, could play the role of a light source within the formulation.  The curing process was performed under various NIR laser intensities.Increasing the photo-initiator and upconversion particles concentration resulted in higher double bond conversion. Increasing the laser intensity, by enhancing the upconversion emissions leads to better monomer to polymer conversion. The new source passed the inducing of dual curing process.

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Volume 104, March 2017, Pages 97–103

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