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Amorphous fluoropolymer
Widely used in
Optics and Display: Anti-reflective and Protective Coatings
Fiber-optic communication: High-performance fiber coating
Gas separation: gas separation membrane
Microfluidic technology: digital microfluidic devices
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Product Description
Amorphous Fluoropolymers AF series (CAS 37626-13-4)
Alias: Poly[4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole-co-tetrafluoroethylene], Poly(PDD-co-TFE)
It is a type of polymer material with excellent optical performance and chemical stability. Through molecular end design and polymerization technology innovation, this series of products has achieved a completely amorphous (non-crystalline) structure, featuring high transparency, low refractive index, and excellent weather resistance;
AF series fluoropolymers not only address the haze and defect issues encountered in the processing of traditional fluorine-containing materials, but also meet stringent environmental requirements by eliminating the use of harmful surfactants such as PFOA, PFOS, and GenX. Additionally, customized adjustments can be made in terms of functional group customization, molecular weight and dispersibility, solution and melt viscosity, and solubility to cater to different user scenarios.
Technical Parameters
| Item | LANSYN-1600 | AGC CYTOP® | LANSYN-2400 | Chemours Teflon™ AF 2400 |
| Polymer composition | PBVE | PBVE | PDD-PBVE | PDD-TFE |
| Functional group | -CF3, -COOH | -CF3, -COOH, -CONH ~ Si(OR)3 | -COOH | Not specified |
| Density | 2.03 g/cm3 @ 25°C | 2.03 g/cm3 @ 25°C | 1.78 g/cm3 @ 25°C | 1.78 g/cm3 @ 25°C |
| Glass transition temperature Tg | 108°C | 108°C | 250°C | 240°C |
| Initial temperature of thermal decomposition | >400°C | >400°C | >400°C | >400°C |
| Refractive index | 1.34 (589 nm, 20°C) | 1.34 (589 nm, 20°C) | 1.29 (589 nm, 20°C) | 1.29 (589 nm, 20°C) |
| Transmittance | >95% (visible light, 200 μm thin film) | >95% (visible light, 200 μm thin film) | - | - |
| Light absorption/internal transmittance | <0.1% (>99.9%) @ 280-1,000 nm; 5 mm | <0.1% (>99.9%) @ 250-1,700 nm; 5 mm | - | - |
| Water contact angle | 113° @ 23°C | 112° | 113° @ 20°C | 113° @ 20°C |
| Solvent | PFC, HFE, HFC | PFC, HFE, HFC | PFC, HFE, HFC | PFC |
| Solvent boiling point | 100-180°C | 180°C(PFC); 100°C(HFE, HFC) | 100-180°C | 165°C (PFC) |
| Solution concentration | 9 ± 0.5% | 9 ± 0.5% | 3% | 1% |
| Filter | 0.2-5.0 μm | 0.2-5.0 μm | 5.0 μm | Not specified |
| Oxygen Permeability | - | - | 1600 barrier @ 25°C | 900 barrier @ 25°C |