- 2067 Mangsir · 2 marks
Thermosetting polymer; uses of epoxy resin
Short answer
A thermosetting polymer forms a permanent 3‑D cross‑linked network on curing, cannot be remoulded. Epoxy resins serve as strong adhesives (Araldite), protective coatings, electrical potting, glass‑epoxy laminates for PCBs, and matrices for fibre‑reinforced composites.
What is a thermosetting polymer? Write down the uses of epoxy resin.
A thermosetting polymer is a polymer that is cross-linked into a rigid 3-D network when heated or cured. It sets permanently, cannot be softened or remoulded on reheating, and is insoluble. Examples: Bakelite, epoxy resin, melamine–formaldehyde.
Uses of epoxy resin
- Strong adhesives (Araldite) for metal, glass and ceramics.
- Surface coatings, paints and protective linings for tanks and pipes.
- Electrical insulation and potting of electronic components; glass-epoxy laminates for printed circuit boards.
- Matrix of fibre-reinforced composites (aircraft, boats, sports goods).
- Flooring, castings, moulds and tools.
✓ Answer checked by Claude Opus 5.5 (high effort)
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