|
performance |
Numerical value |
|
Polyol Type |
Cashew Nut Shell Oil Diol |
|
Viscosity, (cps) @ 25 °C |
waxy solid |
|
Hydroxyl value (mg KOH/g) |
70-85 |
|
Moisture, % |
<0.05 |
|
Color (Ghanaian Law) |
light brown solid |
|
Calculated biological content |
36 |
|
Gel time with polymerized MDI (min) |
- |
|
Recommended Applications |
prepolymer |
Product Positioning:
①Compared with FX-9201LP and FX-9203LP, the mechanical properties are better
②Best hydrolytic stability
③ Can come into contact with food
④Good compatibility: mix with FX-9203LP and FX-9201LP to balance performance
⑤Better 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-9208 |
|
PPG 1000 |
100% Compatible |
|
PPG 2000 |
100% Compatible |
|
Poly BD |
incompatible |
|
EVA |
<50% Compatible |
|
Tackifier (Wingtack 10) |
>50% Compatible |
|
Tackifier (Indopol H300) |
50% Compatible |
Reactivity:
|
FX-9208 |
|
|
Isocyanate |
Gel time @ 25 °C |
|
PMDI |
solid |
Guidelines for making stable prepolymers from glycols:
|
prepolymer synthesis |
FX-9208 |
|
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-9208 |
>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-9208 |
57700 |
11 |
197 |
24.5 |
87 |
Viscosity:
|
Diols |
Viscosity (cps, @ 25 °C) |
Viscosity (cps, @ 40 °C) |
|
FX-9208 |
solid |
527 |
Mechanical properties and stability：
|
Glycol (7% NCO prepolymer) |
Hardness (Shore A) |
Tensile strength (MPa) |
Elongation(%) |
|
FX-9208 |
87 |
11.0 |
197 |
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-9208 |
0.79 |
0.23 |
76 |
-45 |