Polyether polyurethane prepolymer is widely used in the production of polyurethane elastomers, coatings, adhesives, and foam systems. It is valued for its outstanding flexibility, excellent hydrolysis resistance, and strong chemical resistance, making it a reliable choice for demanding industrial and commercial applications.
Advantage of Polyether polyurethane prepolymer
Excellent flexibility and elasticity
High chemical resistance
Superior hydrolysis resistance
Outstanding durability and wear resistance
Reliable performance at low temperatures
Customizable hardness and density
UV and oxidation resistance
Suitable for a wide range of industrial applications
Product description of Polyether polyurethane prepolymer
Polyether-based polyurethane prepolymer is a TDI-terminated, castable system formulated for high-performance elastomer applications. It features excellent processability and is commonly used to produce PU plates, PU bars, sealing rings, PU rollers, and various other molded components.
Applicataion OF Polyether/tDI polyurethane prepolymer
Elastomers & Gaskets
Spray Foam Insulation
Coatings & Adhesives
Automotive Components
Footwear & Sports Equipment
Industrial Wheels & Casters
Foam for Furniture
Protective Films & Packaging
Storage of TDI Polyether polyurethane prepolymer
Store in a cool and dry place and use up as soon as possible after opening;
If it cannot be used up at one time, it shall be sealed with nitrogen;
The second opening needs to be used for defoaming, and the original storage period is six months.
specification of our Polyether based polyurethane prepolymer
|
Model |
BQ8300 |
BQ8301 |
BQ8302 |
BQ8303 |
BQ8304 |
BQ8305 |
BQ8306 |
|
NCO/% |
4.0±0.2 |
4.5±0.2 |
5.5±0.2 |
6.0±0.2 |
8.0±0.2 |
8.5±0.2 |
3.0±0.1 |
|
State at 20 ºC |
Colorless Transparent Liquid |
||||||
|
MOCA 100g Prepolymer /g |
11.5 |
13 |
16 |
17.5 |
23 |
24 |
8.6 |
|
Viscosity (85ºC)/mPa·s |
340 |
300 |
250 |
250 |
450 |
400 |
200 |
|
Mixing temperature /ºC(Prepolymer/MOCA) |
80/120 |
80/120 |
80/120 |
80/120 |
75/110 |
75/110 |
85/120 |
|
Gel time /min |
10 |
9.5 |
9 |
6 |
2 |
2 |
9 |
|
Post vulcanization time (100ºC) /h |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
|
Hardness(Shore A) |
78±2 |
82±2 |
88±1 |
92±1 |
- |
- |
70±2 |
|
Hardness(Shore D) |
- |
- |
- |
70±1 |
78±1 |
- |
|
|
100% Modulus/MPa |
4.6 |
5 |
5.5 |
6.2 |
23.2 |
32.5 |
2.1 |
|
300% Modulus /MPa |
8.2 |
9.2 |
13 |
20.8 |
- |
- |
3 |
|
Tensile strength /MPa |
27 |
28 |
32 |
35 |
39 |
42 |
7 |
|
Elongation / % |
550 |
480 |
400 |
350 |
230 |
180 |
600 |
|
Tear strength /(KN/m) |
46 |
55 |
76 |
78 |
123 |
145 |
34 |
|
Rebound / % |
28 |
24 |
24 |
33 |
40 |
51 |
50 |
|
Density (24ºC)/(g/ cm3) |
1.11 |
1.12 |
1.14 |
1.14 |
1.18 |
1.18 |
1.08 |
|
Din wear /mm³ |
148 |
112 |
109 |
141 |
131 |
89 |
163 |
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