Polyester Prepolymer TDI based is formed by reacting polyester polyols with TDI, resulting in a polymeric material with isocyanate groups,has excellent abrasion resistance, good oil resistance, and nice mechanical property.
Application
Polyester Prepolymer TDI based is a prepolymer made from polyester polyol and toluene diisocyanate (TDI), widely used in various industrial applications due to its excellent mechanical properties, chemical resistance, and durability.
Polyester Prepolymer TDI based has some application
Polyester Prepolymer TDI based used in the production of high-performance polyurethane elastomers, which are found in applications like seals, gaskets, and rollers due to their flexibility and abrasion resistance.
Polyester Prepolymer TDI based are often used as components in high-strength adhesives for bonding a variety of substrates, especially in demanding environments.
Polyester Prepolymer TDI based serves as a base material for creating tough, protective polyurethane coatings, which are applied to metal, concrete, and wood to provide resistance to wear, chemicals, and environmental conditions.
Polyester Prepolymer TDI based is frequently used in the manufacturing of molded polyurethane parts, such as wheels, bushings, and industrial equipment components, that require excellent load-bearing capacity and impact resistance.
Polyester Prepolymer TDI based can also be used to create rigid or flexible polyurethane foams that provide insulation, cushioning, or structural support.
properties
|
NO. |
1 |
2 |
3 |
4 |
5 |
|
Type |
Polyester/TDI system |
||||
|
Model |
BQ8341 |
BQ8026 |
BQ8315 |
BQ8035 |
BQ8317 |
|
NCO content % |
2.1±0.2 |
2.6±0.2 |
3.0±0.2 |
3.5±0.2 |
5.0±0.2 |
|
State of matter at 20°C |
White Soild |
White Soild |
White Soild |
White Soild |
White Soild |
|
Hardener |
E300 |
E300 |
E300 |
E300 |
E300 |
|
100g prepolymer curing agent dosage (g) |
4.96 |
6.16 |
7.04 |
8.24 |
11.84 |
|
Prepolymer/curing agent mixing temperature (°C) |
85/120 |
85/120 |
85/120 |
80/120 |
80/120 |
|
Viscosity at 85°C (mpa·s) |
3000 |
2600 |
2000 |
1600 |
1100 |
|
Gel time (min) |
11-16 |
11-15 |
10-14 |
8-13 |
4-8 |
|
Post curing time (100℃/h) |
16 |
16 |
16 |
16 |
16 |
|
Hardness (Shore A) |
68±2 |
73±2 |
78±2 |
85±2 |
92±2 |
|
Tensile strength (mpa) |
42 |
43 |
45 |
46 |
47 |
|
100% modulus stress (mpa) |
2.5 |
3.5 |
3.7 |
4.1 |
8 |
|
300% modulus stress (mpa) |
4 |
5.5 |
7 |
8 |
16 |
|
Elongation at break (%) |
850 |
720 |
680 |
660 |
500 |
|
Right Angle Tear Strength (kN/m) |
50 |
58 |
72 |
80 |
105 |
|
Pants tear strength (kN/m) |
18 |
22 |
32 |
40 |
46 |
|
Rebound (%) |
43 |
40 |
38 |
35 |
32 |
|
Density at 25°C (g/cm3) |
1.2 |
1.23 |
1.25 |
1.25 |
1.25 |
|
DIN wear (mm3) |
50 |
48 |
45 |
43 |
45 |
Storage
Store in a dry and cool place
Fill it with nitrogen gas and then close it enough,if can't used out at one time
The original package has a shelf life of 6 months.
Packing: 20kg or 200kg drum
Delivery time:Usually 7-10 working days after receiving the deposit
Sample time:Usually 2-4days to ship out if have stock,otherwise need about 7-10days .
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