Description
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Material Identity & Core Properties
Chemical Composition
- TR90 is a transparent polyamide 12 (PA12) resin
Optical Performance
- Light transmittance >92%, exceeding polycarbonate (PC) and approaching PMMA clarity
- Maintains transparency under UV exposure and chemical contact56.
Physical Traits
- Ultra-low density (1.14–1.15 g/cm³), floats in saline solution
- Minimal moisture absorption (~0.25%), ensuring dimensional stability.
Functional Advantages
- "Memory" elasticity: Recovers shape after deformation (flexural modulus 620 kg/cm²)
- Resists fuels, alcohols, weak acids, and stress cracking
- Self-extinguishing
Critical Applications
|
Industry |
Use Cases |
|
Eyewear |
Lightweight frames (60% lighter than acetate; reduces ear/nose pressure) |
|
Medical |
Transparent tubing, biocompatible device housings |
|
Consumer Goods |
Sports equipment, luxury packaging, electronic displays. |
|
Industrial |
Flow meters, protective covers for corrosive environments . |
Processing Requirements
- Drying: Mandatory pre-drying to ≤0.08% moisture (80°C for 4–8 hrs) to prevent bubbles/silver streaks10.
- Temperature Control:
- Processing range: 220–260°C10.
- Avoid exceeding 330°C to prevent yellowing10.
- Recyclability: Regrind usage ≤25% recommended to maintain optical properties10.
Commercial & Compliance Notes
- Exclusive Producer: Swiss EMS (Grilamid® TR90 series)16.
- Certifications: Food-contact compliance (EU standards), biocompatibility for medical use28.
- Market Position: High-cost material due to stringent production requirements212.
- Distinctive Edge: TR90 uniquely merges optical clarity with PA12's chemical resistance and elasticity, enabling designs impossible with PC/PMMA57.
Package
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