- 2073 Bhadra · 2.5 marks
Types and uses of silicones
Short answer
Types: silicone oils/fluids (lubricants, hydraulic fluids), greases (high-temp lubrication), rubbers (gaskets, medical implants), resins (heat-resistant paints, electrical insulation). General uses: wide-temperature-range lubricants, water-repellent coatings, electrical insulation, sealants, and medical devices.
Write the types of silicones and their uses.
| Type | Structure | Uses |
|---|---|---|
| Silicone oils/fluids | Short linear chains | Lubricants, hydraulic fluids, polishes, anti-foaming agents, cosmetics |
| Silicone greases | Oil + filler (silica) | High and low temperature lubricant, vacuum grease |
| Silicone rubbers | Long chains lightly cross-linked | Gaskets, seals, tubing, medical implants, cable insulation |
| Silicone resins | Highly cross-linked network | Heat-resistant paints, varnishes, electrical insulation, water repellents |
General uses:
- Lubricants and oils stable over a wide temperature range.
- Water-repellent coating for cloth, glass and building surfaces.
- Electrical insulation (high-temperature) and sealants for electronic devices.
- Rubber for gaskets, tubes, medical implants, keypads and bakeware.
- Cosmetics, polishes, anti-foam and mould-release agents.
✓ Answer checked by Claude Opus 5.5 (high effort)
Related questions
- Silicones and their uses · Engineering Chemistry, chapter 4
- Inorganic polymer; network polymer of sulphur; silicones · Engineering Chemistry, chapter 4