Side-Chain Amino Silicone Oil
CAS Number: 63148-62-9
Side-chain amino silicone oil carries aminopropyl or aminoethylaminopropyl groups distributed along the PDMS backbone. This architecture maximizes fiber contact density, delivering superior softness, smoothness, and elasticity to cotton, polyester, and blended fabrics at 0.5–3% on-weight-of-fabric (OWF). Amine value (0.05–1.5 mmol/g) governs softness intensity and yellowing tendency: high-amino grades (>0.5 mmol/g) provide heavy softness for towels and knitwear; low-amino hydrophilic grades (0.05–0.2 mmol/g) suit white and light-colored fabrics where yellowing is unacceptable.
Technical Specifications
| appearance | Colorless to slightly yellow transparent liquid |
| viscosity (cSt, 25°C) | 300–3000 |
| amine value (mmol/g) | 0.05–1.5 (multiple grades) |
| amino content (wt%) | 0.1–2.0 |
| pH (1% emulsion) | 8.0–9.0 |
Applications
- Textile softener/finishing agent for cotton, polyester, nylon (0.5–3% OWF)
- Hair conditioner and leave-in treatment in personal care formulations
- Leather softening and surface feel enhancement
- Fiber lubricant in yarn spinning and weaving
- Hydrophilic fabric finishing (low-amino grades, 0.05–0.2 mmol/g)
Key Features
- Side-chain architecture delivers higher fiber coverage than terminal-amino grades
- Amine value range (0.05–1.5 mmol/g) covers hydrophilic finishing to heavy softening
- Low-yellowing grades available for white and light-colored textiles
- Compatible with non-ionic and anionic textile auxiliaries in padding bath
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CAS Number
63148-62-9
Category
textile silicone auxiliariesAvailability
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