CYTOP™ Technical Information
CYTOP™ is innovative in its field, showcasing the same excellent chemical, thermal, electrical, and surface properties as conventional fluoropolymers. In addition, its noticeable characteristics include high optical transparency and good solubility in specific fluorinated solvent, due to amorphous morphology.
CYTOP™ is the registered trademark of Japan.
| Characteristics | |
| High Transmittance DUV 200nm – NIR 2.0 micron meter > 95% |
Low Refractive Index Minimal Colour Observation nD:1.34, Abbe’s #: 90 |
| Electrical Properties Dielectric Constant:2.1, Volume Resistivity>1017 ohm meter |
Thin Film Coating Soluble in perfluoro solvent: Film Thickness beyond 0.1micron meter |
| Fluoropolymer Category | |||
| Fluoropolymer | Perfluoropolymer | ||
| Crystalline | ETFE PVDF PVF ECTFE |
PTFE PFA FEP |
|
| Amorphous | Resins | Lumiflon (1) | Cytop (1) |
| Rubber | Aflas (1) Vitom (2) Fluorel (3) |
Kalrez (2) | |
Registered Trademarks: (1) Asahi Glass, (2) DuPont, (3) 3M
Applications
- Electronics Sector (inter-level dielectric layer for semiconductors)
- Pellicle (Photo mask Cover)
- Optical Sector (optical film, anti-reflection coating)
- Graded-Index Optical fibre (Lucina™ for gigabit communications)
- Other water & oil repellent/transparent anti-corrosion applications
(1) Optical Properties
| CYTOP | PTFE | PFA | PMMA | Remarks | |
|---|---|---|---|---|---|
| Refractive Index | 1.34 | 1.35 | 1.35 | 1.49 | Abbe’s Refractometer |
| Transmittance (%) | 9.5 | Opaque | Opaque | 93 | Visible Region,200 micron meter |
| Abbe’s Number | 90 | – | – | 55 | Abbe’s Refractometor |
UV-Vis. Transmittance
(2) Physical Properties
| CYTOP | PTFE | PFA | PMMA | Remarks | |
|---|---|---|---|---|---|
| Glass Transition Temperature (°C) |
108 | (130) | (75) | 105-120 | DSC |
| Melting Point (°C) | not observed | 327 | 310 | iso 160 syn 200 |
DSC |
| Density (g/cm3) | 2.03 | 2.14-2.20 | 2.12-2.17 | 1.19-1.20 | 25°C |
| Contact Angle of Water (degree) |
110 | 114 | 115 | 80 | 25°C |
| Critical Surface Tension (dyn/cm) |
19 | 18 | 18 | 39 | 25°C |
| Water Absorptivity (%) | <0.01 | <0.01 | <0.01 | 0.3 | 60°C In water |
| Durometer Hardness | HDD78 | HDD55 | HDD58-60 | HDD92 | ASTM D2240 |
| Linear Expansion Coefficient (cm/cm/°C) |
7.4*10-5 | 1.0*10-4 | 1.3*10-4 | 8.0*10-5 | TMA (40-100°C) |
Contents
| Gas Permeation | Comparison of Oxygen | |||
|---|---|---|---|---|
| Gas | Permeability (cm3cm/cm2s Pa) | Product | Oxygen Permeation (cm3 cm/cm2s Pa) | |
| He | 8.9*10-12 | CYTOP | 4.2*10-13 | |
| O2 | 4.2*10-13 | PTFE | 3.2*10-13 | |
| N2 | 1.0*10-13 | PE | 2.2*10-13 | |
| Saran | 4.0*10-16 | |||
| Moisture Permeation | |
|---|---|
| Product | Permeability (cm3 cm/cm2s Pa) |
| CYTOP | 1.1*10-12 |
| PI | 4.3*10-11 |
| Silicon Rubber | 3.2*10-9 |
| HDPE | 9.0*10-13 |
| Saran | 7.0*10-13 |
(3) Chemical Resistance
| Chemicals | Weight Change(%) | Appearance | Remarks |
|---|---|---|---|
| Acids 12N HCl 99% H2SO4 50% HF |
– 0.0 0.0 0.0 |
– No change No change No change |
– 60°C *1 week 60°C *1 week R.T.*1 week |
| Alkalis 10% NaOH 44% NaOH |
– 0.0 0.0 |
– No change No change |
– 60°C *1 week 60°C *1 week |
| Organic Solvents Hexane Benzene Acetone Methylethylketone Trichloro Ethylene Carbon Tetrachloride |
– 0.0 0.0 0.0 0.0 0.0 0.0 |
– No Change No Change No Change No Change No Change No Change |
– R.T.*1 week R.T.*1 week R.T.*1 week R.T.*1 week R.T.*1 week R.T.*1 week |
Before using CYTOP™, AGC Chemicals Europe urges the careful reading of the appropriate Material Safety Data Sheet (MSDS). Technical information brochures are available for selected products. Please note that the brochure and MSDS are based on the latest information and data available—additional corrections may be made from time to time without notice when new data becomes available and/or regulations are changed. Please contact AGC Chemicals Europe or the selling agency directly for any questions.
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