Polyester resin, polyurethane resin is:
Correct answer: B. Multipart adhesive
- A. Hot adhesive
- B. Multipart adhesive
- C. One-part adhesive
- D. Contact adhesive
Explanation
The correct answer is Option B: Multipart adhesive. Polyester and polyurethane resins often consist of two or more components that must be mixed together to initiate a chemical reaction that causes them to harden and adhere. This characteristic categorizes them as multipart adhesives. In contrast, hot adhesives are thermoplastic materials applied in a molten state, one-part adhesives do not require mixing, and contact adhesives bond upon contact without curing, making these options incorrect for describing polyester and polyurethane resins.
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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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292 free Industrial Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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