Light-curing adhesives, which harden when exposed to light, are generally based on what type of polymer system?
Correct answer: C. Acrylic-based
- A. Urethane-based
- B. Epoxy-based
- C. Acrylic-based
- D. Silicone-based
Explanation
Acrylic-based polymers are the correct choice for light-curing adhesives because they contain photoinitiators that react to specific wavelengths of light, causing rapid polymerization and hardening. This makes them suitable for applications requiring quick setting and strong bonds without the need for heat or chemical curing agents. Urethane-based adhesives, while strong and flexible, do not typically cure with light. Epoxy-based systems require chemical or thermal curing, and silicone-based adhesives generally cure with moisture or heat, not light.
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About Industrial Chemistry
Industrial chemistry applies chemical reactions and material properties to the manufacture of adhesives, dyes and polymers. Coverage includes addition and condensation polymerisation, thermoplastics and thermosetting polymers, the structural basis of colour in dyes, and how adhesive composition enables bonding between surfaces.
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