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OKP Osaka Gas Chemicals OKP V1 Optical Plastic, 1.637 Refractive Index – 25 kg bag
OKPV1-25KG
Osaka Gas Chemicals OKP V1 Optical Plastic, 25 Kg container
Osaka Gas Chemicals OKP Optical Plastics are high-purity, optically clear thermoplastics specifically designed for injection molding of high-performance optical components, such as phone and camera lenses and display backlights. OKP materials offer a high refractive index and light transmittance comparable to optical-grade polycarbonate. They also provide high heat resistance to withstand lead-free soldering processes and demonstrate excellent optical and thermal stability.
Properties and Melt Flow Rate:
Properties and Melt Flow Rate:
- Refractive Index: 1.637
- Abbe Number: 22.8
- Visible Light Transmittance (%-T at 1mm): 90
- Birefringence (OGC Method, nm ×10⁻⁴): 34
- Melt Flow Rate (MFR, 230°C/2.16kg): 2
- Glass Transition Temperature (Tg): 149°C (300.2°F)
- Heat Deflection Temperature (HDT, 1.80 MPa): 139°C (with annealing)
- Water Absorption (24 hours): 0.11%
- Tensile Strength: 65 MPa
- Coefficient of Thermal Expansion (CTE): 6.1 × 10⁻⁵/°C
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