Product Introduction
PCDL is a polycarbonate diol ring-opened with polyol, which is professionally used in high-grade polyurethane industry.
Compared with general polyester and polyether diols, PCDL exhibits excellent mechanical properties, hydrolysis resistance, weather resistance and solvent resistance. Widely used in synthetic leather, thermoplastic polyurethane elastomer (TPU), elastic fibers, adhesives, coatings, etc. If it is particularly necessary to improve durability, PCDL will be the best choice.
Polyurethane products made of PCDL have higher breaking strength than those made of polytetrahydrofuran ether, hexanediol adipate and polycaprolactone polyols. The solvent performance is better than other polyols, but the elongation at break is lower.
UH series
|
Product grade |
Molecular Weight |
OH |
acid value |
melting point °C |
Normal temperature state |
|
UH-50 |
500 |
224±20 |
<0.1 |
33±5 |
Solid |
|
UH-100 |
1000 |
110±10 |
<0.1 |
45±5 |
Solid |
|
UH-200 |
2000 |
56±5 |
<0.1 |
50±3 |
Solid |
|
UH-300 |
3000 |
37±3 |
<0.1 |
52±3 |
Solid |
PH series
|
Product grade |
<0.1 |
— |
Highly viscous liquid |
||
|
UM-90(1/3) |
900 |
125±10 |
<0.1 |
— |
Highly viscous liquid |
UP series
|
Product grade |
Molecular Weight |
OH |
acid value |
melting point °C |
Normal temperature state |
|
UP-50 |
500 |
224±20 |
<0.1 |
— |
Highly viscous liquid |
|
UP-100 |
1000 |
110±10 |
<0.1 |
— |
Highly viscous liquid |
|
UP-200 |
2000 |
56±5 |
<0.1 |
— |
Highly viscous liquid |
Comparison of basic properties of polyurethanes made with various polyols :
|
Item |
PTMG |
PHA |
PCL |
PCDL |
|
heat resistance |
Poor |
OK |
OK |
Excellent |
|
Water resistance |
OK |
Poor |
Normal |
Excellent |
|
Oleic acid resistance |
Poor |
Normal |
Bad ~ Fair |
OK |
|
Weather resistance |
Poor |
OK |
OK |
Excellent |
“width:96.6000pt”>
OK
OK
Excellent
Water resistance
OK
Poor
Normal
Excellent
Oleic acid resistance
Poor
Normal
Bad ~ Fair
OK
Weather resistance
Poor
OK
OK
Excellent
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