|
performance |
Numerical value |
|
Polyol Type |
Polyester glycol (without cashew nut shell oil) |
|
Viscosity, (cps) @ 25 °C |
waxy solid |
|
Hydroxyl value (mg KOH/g) |
120-145 |
|
Moisture, % |
<0.05 |
|
Color (Ghanaian Law) |
light yellow solid |
|
Calculated biological content |
- |
|
Gel time with polymerized MDI (min) |
- |
|
Recommended Applications |
prepolymer |
Product Positioning:
①Light color
②Small smell
③ Can come into contact with food
④Best mechanical properties
⑤Good hydrolytic stability
⑥ Better prepolymer stability at room temperature and high temperature
Applications:
①1K and 2K polyurethane adhesives and sealants
②Thermoplastic polyurethane (TPU)
③Polyurethane dispersion (PUD)
④Polyurethane reactive hot melt adhesive
⑤Polyurethane prepolymer, adhesive, co-reactant
⑥ foam, soft foam
compatibility:
|
performance |
FX-9207 |
|
PPG 1000 |
100% Compatible |
|
PPG 2000 |
100% Compatible |
|
Poly BD |
incompatible |
|
EVA |
incompatible |
|
Tackifier (Wingtack 10) |
incompatible |
|
Tackifier (Indopol H300) |
incompatible |
Reactivity:
|
FX-9207 |
|
|
Isocyanate |
Gel time @ 25 °C |
|
PMDI |
solid |
Guidelines for making stable prepolymers from glycols:
|
prepolymer synthesis |
FX-9207 |
|
Isocyanate Type |
Suitable for any isocyanate |
|
Parts of isocyanate |
unlimited |
|
Catalyst for Prepolymer Reaction |
unlimited |
|
Remark |
Recommended prepolymer synthesis |
Thermal stability: prepolymer
|
Cashew Nut Shell Oil Diol: 3% NCO Prepolymer (Pure MDI) |
RT |
80 ºC |
120 ºC |
|
FX-9207 |
>6 month |
ok for 48hr |
Peeling after 24 hours |
Recommendations to improve thermal stability:
①No catalyst
② Benzoyl chloride as stabilizer
③Nitrogen protection
Prepolymer (NCO7%):
|
7% NCO prepolymer |
Prepolymer Viscosity (cps at 25°C) |
Tensile strength (MPa) |
Elongation(%) |
Modulus (MPa) |
Shore A hardness |
|
FX-9207 |
97400 |
26.8 |
302 |
43.5 |
91 |
Viscosity:
|
Diols |
Viscosity (cps, @ 25 °C) |
Viscosity (cps, @ 40 °C) |
|
FX-9207 |
solid |
261 |
Mechanical properties and stability:
|
Glycol (7% NCO prepolymer) |
Hardness (Shore A) |
Tensile strength (MPa) |
Elongation(%) |
|
FX-9207 |
91 |
26.8 |
302 |
2K Polyurethane Properties:
|
Diols |
Sandblasted steel lap shear strength, MPa |
Tensile Strength (40°C/114hr cure), MPa |
Elongation at break (40°C/ 114hr cure), % |
Tg (40°C/4hr+80°C/ 2hr+120°C/4hr), °C |
|
FX-9207 |
1.31 |
- |
- |
-31 |