|
performance |
Numerical value |
|
Polyol Type |
Cashew Nut Shell Oil Diol |
|
Viscosity, (cps) @ 25 °C |
1800-3500 |
|
Hydroxyl value (mg KOH/g) |
90-125 |
|
Moisture, % |
≤0.1 |
|
Color (Ghanaian Law) |
≤14 |
|
Calculated biological content |
69 |
|
Gel time with polymerized MDI (min) |
4hr |
|
Recommended Applications |
prepolymer |
Product Positioning:
①Best compatibility
②Hydrolytic stability
③Low moisture sensitivity
④Good compatibility with PolyBD: good moisture resistance and mechanical properties
⑤FX-9203LP can be used for prepolymer synthesis
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-9203/FX-9203LP |
|
PPG 1000 |
100% Compatible |
|
PPG 2000 |
100% Compatible |
|
Poly BD |
100% Compatible |
|
EVA |
100% compatible, cloudy |
|
Tackifier (Wingtack 10) |
100% Compatible |
|
Tackifier (Indopol H300) |
incompatible |
Reactivity:
|
FX-9203LP |
|
|
Isocyanate |
Gel time @ 25 °C |
|
PMDI |
4hr |
Guidelines for making stable prepolymers from glycols:
|
prepolymer synthesis |
FX-9203LP |
|
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-9203LP |
>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-9203/FX-9203LP |
21056 |
5.1/6.5 |
82.8/96 |
32.6 |
82 |
Mechanical properties and stability:
|
Glycol (7% NCO prepolymer) |
Hardness (Shore A) |
Tensile strength (MPa) |
Elongation(%) |
|
FX-9203LP |
82 |
6.5 |
96 |