|
| ::: What we offer >> Polycarbonate-diol
(PCDL) |
| |
Polycarbonate-diol (PCDL)
About PCDL
Polycarbonatediol（PCDL）is one of polyols used in the new generation
synthesized polycarbonate-based polyurethane. Polyurethane produced
from PCDL is superior to the ones from polyether-diols or polyester-diol
in mechanical performance, heat resistance, oil resistance,
hydrolytic resistance, oxidizing resistance, abrasion resistance,
chemical resistance and weather resistance. PCDL performs pretty
excellent with respect to hydrolytic resistance and aging resistance,
its outstanding synthetic properties enables it to be used extensively
in each area of polyurethane.
Options
|
Model
|
Molecular weight
|
Hydroxyl Value
|
Acid Value
|
Appearance
|
|
JSB 10
|
1000
|
100-120 K0H mg/g
|
≤ 0.1 K0H mg/g
|
White waxy solid
|
|
JSB 20
|
2000
|
51-61 K0H mg/g
|
≤ 0.1 K0H mg/g
|
White waxy solid
|
|
JSH 10
|
1000
|
100-120 K0H mg/g
|
≤ 0.1 K0H mg/g
|
White waxy solid
|
|
JSH 20
|
2000
|
51-61 K0H mg/g
|
≤ 0.1 K0H mg/g
|
White waxy solid
|
Properties(compared
with other polyols)
Fundamental properties
|
Items
|
PCDL
|
PTMG
|
PMA
|
PCL
|
|
Heat stability
|
Excellent
|
Poor
|
Good
|
Good
|
|
Weather stability
|
Excellent
|
Poor
|
Good
|
Good
|
|
Softness
|
Good
|
Excellent
|
Good
|
Good
|
|
Hydrolysis resistance
|
Excellent
|
Good
|
Poor
|
Fair
|
|
Fungi resistance
|
Excellent
|
Excellent
|
Poor
|
Poor
|
|
Oleic acid resistance
|
Good
|
Poor
|
Fair
|
Fair~Poor
|
|
Ethanol resistance
|
Good
|
Poor
|
Fair
|
Poor
|
PCDL: Polycarbonatediol
PTMG: Polytetoramethylene glycol (polyether polyol)
PMA: Poly1, 6-hexamethylene adipate (polyester polyol)
PCL: Polycaprolactone polyol (polyester polyol)
Comparison in thermoplastic urethanes
formulation
(Test standard: molecular weight:1000; Thickness:2mm)
|
Polyol Types
|
RAVECARB 102
|
PCL
|
PTMEG
|
| Mechanical properties |
|
100% modulus (N/MM2)
|
8
|
5
|
4
|
|
Tensile strength(N/MM2)
|
57
|
57
|
|
|
Elongation (%)
|
400
|
500
|
640
|
| Tensile Strength Retention,
heated at 120 ℃ for: |
|
early days
|
100
|
100
|
100
|
|
15 days
|
99
|
95
|
5
|
|
30 days
|
96
|
89
|
-
|
|
60 days
|
87
|
79
|
-
|
|
90 days
|
78
|
59
|
-
|
| Tensile Strength Retention,
immerged in 85℃ water for : |
|
early days
|
100
|
100
|
100
|
|
20 days
|
98
|
60
|
98
|
|
40 days
|
92
|
20
|
95
|
|
60 days
|
92
|
0
|
75
|
|
80 days
|
92
|
-
|
50
|
|
100 days
|
92
|
-
|
3
|
|
| |
|
|
