Description
Polyether prepolymer polyether TDI system
Key features
General purpose products.
High mechanical strength
Good abrasion resistance, good hydrolysis resistance
Easy to operate, low price.
Typical properties
|
Polyether TDI System
|
PET- 510
|
PET- 511
|
PET- 512
|
PET- 513
|
PET- 514
|
PET- 515
|
|
Prepolymer
|
Appearance
(25℃)
|
viscous liquid
|
viscous liquid
|
viscous liquid
|
viscous liquid
|
viscous liquid
|
viscous liquid
|
|
NCO
Content(%)
|
2.8~3.0
|
3.6~4.0
|
4.2~4.5
|
4.8~5.5
|
5.5~6.0
|
6.0~6.8
|
|
Using Mixture Ratio(PHR)
|
8.0~8.5
|
10.0~11.5
|
12.0~13.0
|
13.5~15.8
|
15.5~16.0
|
16.0~18.8
|
|
Life in the Reaction Kettle(75-78℃/min)
|
8~10
|
5~7
|
5~7
|
3~5
|
3~5
|
3~5
|
|
Physical
properties of finished products
|
Hardness
(Shore A)
|
60±5
|
75±2
|
80±2
|
85±2
|
90±2
|
95±2
|
|
Tensile
Strength (MPa)
|
20.7
|
22.5
|
22.8
|
26.1
|
32.6
|
35.6
|
|
Tearing
Strength (kN/m)
|
22.6
|
27.2
|
27.5
|
33.4
|
38.2
|
38.2
|
|
Elongation at Break(%)
|
401
|
377
|
358
|
350
|
320
|
313
|
|
Akron Abrasion(cm3/1.61km)
|
0.05
|
0.05
|
0.05
|
0.05
|
0.03
|
0.03
|
Application
-Mainly used in the production of ordinary polyurethane elastomer products, such as a variety of industrial components, roller, rubber roller, rubber, oil seal, cushioning materials, plates, etc..
Usage method
Suitable for manual and high temperature casting machine operation, chain extender is MOCA.
Attention
The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used
After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.
The storage period of unopened prepolymer is three months.
If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
