Technical Information:
Cytop™ is an innovation in the field of fluoropolymers. It has the same excellent chemical, thermal, electrical and surface properties as conventional fluoropolymers. In addition, its noticeable characteristics are high optical transparency and good solubility in specific fluorinated solvent due to amorphous morphology.
Cytop™ is the trademark registered in 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) |
CYTOP applications:
- Electronics Sector: Inter-level Dielectric Layer for Semiconductors,
Pellicle (Photo mask Cover) - Optical Sector: Optical Film, Anti-Reflection Coating
- Graded-Index Optical fiber: LucinaTM for Gigabit Communications
- Others: Water & Oil Repellent, Transparent Anti-corrosion
(1) Optical Properties
CYTOP | PTFE | PFA | PMMA | Remarks | |
Refractive Index | 1.34 | 1.35 | 1.35 | 1.49 | Abbe’s Refractometer |
Transmittance (%) | 95 | 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
” ” ” “ |
60°C *1 week 60°C *1 week R.T.*1 week |
Alkalis 10% NaOH 44% NaOH |
0.0
0.0 |
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
” ” ” ” ” ” ” ” ” “ |
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 use of this product, we urge the careful reading of the appropriate Material Safety Data Sheet (MSDS). Technical information brochures are available for some products. For the safe use of the product, one must abide by the use method and the purposes described in the relevant brochure and MSDS. Please note that the brochure and MSDS are based on the latest information and data available, but additional and/or corrections may be made, from time to time, without notice when new data becomes available and/or regulations are changed. Feel free to contact us directly and or the selling agency if you have any questions.