Optical-Grade PMMA
Optical-grade PMMA is a high-end category in the PMMA product family, produced using high-purity MMA monomer and continuous bulk polymerization process, with strict control of impurities, yellowing index, and birefringence. It features ultra-high light transmittance (≥93%), low haze (≤0.5%), and excellent refractive index uniformity (Δn<0.0002). It is the core material for high-precision optical components such as LCD/LED light guide plates, optical fibers, and optical lenses, with high technical barriers and exceptional added value.
Technical Parameters
Parameter | Unit | TypicalValue | TestStandard |
Density | g/cm³ | 1.18~1.19 | ISO 1183 |
Light Transmittance | % | ≥93 | ASTM D1003 |
Haze | % | ≤0.5 | ASTM D1003 |
Refractive Index | — | 1.490~1.492 | ASTM D542 |
Yellowness Index (YI) | — | <1.5 | ASTM E313 |
Birefringence | nm | <10 | ISO 14737 |
Water Absorption（24h） | % | 0.3~0.4 | ISO 62 |
Tensile Strength | MPa | 70~80 | ISO 527 |
HDT (1.8MPa) | ℃ | 95~105 | ISO 75 |
Metal Ion Impurities | ppm | <5 | ICP-MS |
MFR (230℃/3.8kg) | g/10min | 1.5~15 | ISO 1133 |
Performance Characteristics:
- Light transmittance ≥93%, haze ≤0.5%, optical performance close to optical glass
- Yellowness Index (YI) <1.5, excellent long-term thermo-oxidative aging resistance
- Birefringence <10 nm, suitable for precision optical components
- Metal ion impurity content <5 ppm, meeting optoelectronic packaging requirements
- Stable rheological properties, suitable for microstructural molding (LGP dot injection)
Application:
- LCD/LED display light guide plates (TV, monitor, laptop)
- Plastic optical fiber (POF) core material
- Optical lenses, Fresnel lenses, magnifiers
- LED lamp covers, automotive ambient light light guides
- High-end cosmetic bottles (high clarity, high surface quality)
keywords: Optical-Grade PMMA
classification: Product
Optical-grade PMMA is a high-end category in the PMMA product family, produced using high-purity MMA monomer and continuous bulk polymerization process, with strict control of impurities, yellowing index, and birefringence. It features ultra-high light transmittance (≥93%), low haze (≤0.5%), and excellent refractive index uniformity (Δn<0.0002). It is the core material for high-precision optical components such as LCD/LED light guide plates, optical fibers, and optical lenses, with high technical barriers and exceptional added value.
Technical Parameters
Parameter | Unit | TypicalValue | TestStandard |
Density | g/cm³ | 1.18~1.19 | ISO 1183 |
Light Transmittance | % | ≥93 | ASTM D1003 |
Haze | % | ≤0.5 | ASTM D1003 |
Refractive Index | — | 1.490~1.492 | ASTM D542 |
Yellowness Index (YI) | — | <1.5 | ASTM E313 |
Birefringence | nm | <10 | ISO 14737 |
Water Absorption（24h） | % | 0.3~0.4 | ISO 62 |
Tensile Strength | MPa | 70~80 | ISO 527 |
HDT (1.8MPa) | ℃ | 95~105 | ISO 75 |
Metal Ion Impurities | ppm | <5 | ICP-MS |
MFR (230℃/3.8kg) | g/10min | 1.5~15 | ISO 1133 |
Performance Characteristics:
- Light transmittance ≥93%, haze ≤0.5%, optical performance close to optical glass
- Yellowness Index (YI) <1.5, excellent long-term thermo-oxidative aging resistance
- Birefringence <10 nm, suitable for precision optical components
- Metal ion impurity content <5 ppm, meeting optoelectronic packaging requirements
- Stable rheological properties, suitable for microstructural molding (LGP dot injection)
Application:
- LCD/LED display light guide plates (TV, monitor, laptop)
- Plastic optical fiber (POF) core material
- Optical lenses, Fresnel lenses, magnifiers
- LED lamp covers, automotive ambient light light guides
- High-end cosmetic bottles (high clarity, high surface quality)
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