Chemical Name: Cellulose Triacetate
CAS No.: 9012-09-3
Molecular Formula: C40H54O27
Molecular Weight: 966.8
Cellulose Triacetate (CTA), identified by CAS 9012-09-3, is an advanced cellulose ester widely recognized for its exceptional thermal stability, optical clarity, and chemical resistance. With a degree of substitution (DS) ≥ 2.9, this high-performance polymer outperforms standard cellulose acetate variants in demanding industrial applications.
Parameter | Cellulose Triacetate | Cellulose Acetate | Cellulose Acetate Propionate |
---|---|---|---|
CAS Number | 9012-09-3 | 9004-35-7 | 9004-39-1 |
Acetyl Content | 43.5-44.5% | 38-40% | 34-38% |
Melting Point | 290-310°C | 230-260°C | 190-230°C |
Hydrolysis Resistance | Excellent | Moderate | Good |
CTA's low birefringence and UV stability make it ideal for:
Key applications in textile engineering:
Client: EuroLens Technologies GmbH
Challenge: Required materials with <0.5% haze for AR eyewear production
Solution: Implemented CTA-based substrates with 0.3% haze index
Outcome: 22% increase in product longevity
Client: MediSafe Packaging Co., UK
Challenge: Needed hydrolysis-resistant blister packaging
Solution: CTA-PVdC composite films with 18-month stability
Outcome: Reduced product returns by 37%
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