 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 Color Observation
nD:1.34, Abbe's #: 90 |
Electrical
Properties
Dielectric Constant:2.1,
Volume
Resistively>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) |
(1)-(3) Registered Trademark:
(1)Asahi Glass ,(2)DuPont, (3)3M
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
(cm3cm/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
(cm3cm/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.
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