|
PERFORMANCE BENEFITS IMPARTED TO POLYURETHANES BY SOFT SEGMENT POLYOLS
Polycaprolactone polyols are speciality polyesters made using a polymerisation mechanism similar to polyether ring opening addition, which leads to performance advantages over other polyesters such as adipate polyols as well as polyethers.
|
PROPERTY
|
CAPA POLYOLS
|
POLYETHER PTMEG
|
POLYESTER BDO ADIPATE
|
|
Compression Set
Tensile Strength
Elongation
Hydrolysis Resistance
|
+
+
-
+
|
- -
-
+
++
|
-
+
+
-
|
|
Effective Temp. Range
High
Low
|
+
+
|
- -
++
|
+
-
|
|
Flex Fatigue
Cold Flex
Cut and Tear
UV Resistance
|
+
+
++
+
|
-
++
-
-
|
+
-
+
+
|
|
Oil Resistance
SG of PU
Viscosity
Polydispersity
|
+
+
+
++
|
-
++
+
-
|
+
-
-
-
|
KEY
|
++ Excellent
|
+ Good
|
- Average
|
-- Poor
|
|
|
|
|
|
