|
performance |
Numerical value |
|
Polyol Type |
Cashew Nut Shell Oil Diol |
|
Viscosity, (cps) @ 25 °C |
950-1850 |
|
Hydroxyl value (mg KOH/g) |
65-80 |
|
Moisture, % |
≤0.1 |
|
Color (Ghanaian Law) |
≤17 |
|
Calculated biological content |
87 |
|
Gel time with polymerized MDI (min) |
55 |
|
Recommended Applications |
prepolymer |
Product Positioning:
①Good compatibility
②Hydrolytic stability
③The best moisture sensitivity
④Low Tg (better performance at low 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-9201/FX-9201LP |
|
PPG 1000 |
100% Compatible |
|
PPG 2000 |
100% Compatible |
|
Poly BD |
<30% Compatible |
|
EVA |
100% compatible, cloudy |
|
Tackifier (Wingtack 10) |
<40% Compatible |
|
Tackifier (Indopol H300) |
incompatible |
Reactivity:
|
FX-9201LP |
|
|
Isocyanate |
Gel time @ 25 °C |
|
PMDI |
55min |
uidelines for making stable prepolymers from glycols:
|
prepolymer synthesis |
FX-9201LP |
|
Isocyanate Type |
Suitable for aliphatic isocyanates and MDI |
|
Parts of isocyanate |
Suitable for MDI >7% isocyanates, suitable for >3-4% aliphatic isocyanates |
|
Catalyst for Prepolymer Reaction |
More stable without catalyst addition, but can also be added in small amounts |
|
Remark |
Suitable for prepolymer synthesis if the above conditions are met and guidelines are followed |
Thermal stability: prepolymer:
|
Cashew Nut Shell Oil Diol: 3% NCO Prepolymer (Pure MDI) |
RT |
80 ºC |
120 ºC |
|
FX-9201LP |
>6 month |
X |
X |
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-9201/FX-9201LP |
19868 |
2.2/4.2 |
30.6/83 |
19.3 |
75.4 |
Mechanical properties and stability:
|
Glycol (7% NCO prepolymer) |
Hardness (Shore A) |
Tensile strength (MPa) |
Elongation(%) |
|
FX-9201LP |
75 |
4.2 |
83 |