In UV cured gel systems, what triggers polymerisation after the initiator is included?

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Study for the NVQ Level 3 Nail Services Exam 2. Prepare with flashcards and multiple choice questions, each question includes hints and explanations. Ace your exam!

Multiple Choice

In UV cured gel systems, what triggers polymerisation after the initiator is included?

Explanation:
UV light triggers the polymerisation. The gel contains a photoinitiator that, when exposed to UV photons, forms free radicals. These radicals start the chain reaction that links the monomers (typically acrylate or urethane acrylate components) into a crosslinked network, rapidly curing the gel. Oxygen can slow the surface cure (oxygen inhibition) but doesn’t initiate the reaction, and heat or mechanical agitation don’t start the polymerisation in these UV-cured systems.

UV light triggers the polymerisation. The gel contains a photoinitiator that, when exposed to UV photons, forms free radicals. These radicals start the chain reaction that links the monomers (typically acrylate or urethane acrylate components) into a crosslinked network, rapidly curing the gel. Oxygen can slow the surface cure (oxygen inhibition) but doesn’t initiate the reaction, and heat or mechanical agitation don’t start the polymerisation in these UV-cured systems.

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