Polymerization of chemical-cured acrylic resins is set into action when the tertiary amine in the liquid activates the _____ in the powder to produce free radicals.

Question

Quizplus · Accepted Answer

Polymerization of chemical-cured acrylic resins is set into action when the tertiary amine in the liquid activates the benzoyl peroxide in the powder to produce free radicals.The hydroquinone initially inhibits the reaction from progressing by destroying the free radicals.This inhibition increases the working time so that materials can be manipulated for a reasonable amount of time,usually while the material progresses from the stringy stage to the dough stage.As the hydroquinone is depleted,the reaction proceeds more rapidly and goes from the dough stage to the rubber stage.

Polymerization of Chemical-Cured Acrylic Resins Is Set into Action When