PTMG Prepolymer For Wheels
The PTMG Prepolymer For Wheels is a high performance material widely used in the production of various polyurethane elastomer products, including high elasticity rubber wheels, screen plates, rubber rollers and sealing rings.
This polyether based prepolymer its robust properties make it ideal for demanding environments where long-term durability and high performance are essential.
Specification of the PTMEG TDI Polyurethane Prepolymer For Wheels
| Application: Prepolymer properties | Standard test | Unit | Value |
| NCO content | Q/0300BQ002-2022 | % | 6.4±0.2 |
| Viscosity | Q/0300BQ002-2022 | mPa.s | 300 |
| Processing conditions | Standard test | Unit | Value |
| NCO content | Q/0300BQ002-2022 | % | 6.4 |
| Prepolymer using | Q/0300BQ002-2022 | g | 100 |
| Amount of MOCA | Q/0300BQ002-2022 | g | 19.3 |
| Prepolymer/MOCA temperature | Q/0300BQ002-2022 | °C | 75/115 |
| Gel time | Q/0300BQ002-2022 | min | 4-7 |
| Mold/post-cure temperature | Q/0300BQ002-2022 | °C | 100-105/100 |
| Post-cure time | Q/0300BQ002-2022 | h | 18 |
| Sample properties | Standard test | Unit | Value |
| Hardness | ASTM D2240 | Shore A | 96 |
| Density | ASTM D792 | g/cm³ | 1.15 |
| 100/300% modulus | ASTM D412 | Mpa | 10/28 |
| Tensile strength | ASTM D412 | Mpa | 45 |
| Elongation at break | ASTM D412 | % | 360 |
| Tear strength | ASTM D624 | N/mm | 125 |
| Resilience | IS0 4662 | % | 43 |
| Abrasion | ISO 4649 | mm³ | 49 |
Storage to the PTMG Prepolymer For Wheels
To the PTMG TDI Polyurethane Prepolymer For Wheels,effect of prepolymer heating The isocyanate (NCO) content of prepolymer will decrease over time, especially under heating conditions.
The following table outlines the minor variations in NCO content over time at specific temperatures, with all changes kept within 2%, indicating relatively stable performance under controlled heating conditions.
|
Temperture/℃ |
60 |
70 |
80 |
100 |
|
Time/H |
144 |
72 |
36 |
8 |
Storage:
The PTMEG cast Polyurethane contains NCO components and needs to be kept away from moisture.
It needs to be filled with ammonia and sealed in time after use, and stored in a cool, ventilated and dry environment;
Packaging is 20KG/barrel and 200KG/barrel.
Advantages of PTMG Prepolymer For Wheels
Key Benefits of PTMG Prepolymer For Wheels:
1.Outstanding Abrasion Resistance. Delivers extended service life in high-friction, high-wear environments.
2.Superior Hydrolysis Resistance. PTMG based polyurethanes excel in humid and wet conditions, significantly outperforming polyester-based alternatives.
3.High Mechanical Strength.Exceptional tensile strength, tear resistance, and impact durability make it ideal for demanding, heavy duty applications.
4.Low Rolling Resistance. Minimizes energy loss during motion, enhancing efficiency in material handling and transport systems.
5.Excellent Elasticity & Rebound. Provides enhanced shock absorption and flexibility, ensuring smooth and stable wheel performance.
6.Chemical & Oil Resistance. Resists degradation from oils, greases, and common industrial chemicals, ensuring long-term reliability in harsh working conditions.
7.Stable Performance Across Temperature Extremes. Maintains mechanical integrity across a broad temperature range, suitable for both indoor and outdoor use.
8.Customizable Hardness. Available in various Shore A and Shore D hardness levels, allowing for tailored performance to meet specific application requirements.
Except above PTMEG TDI Polyurethane Prepolymer For Wheels,our Beiqiao can supply the
TDI Poly Ether 2 component
MDI Poly Ether 2 component
TDI Poly Ester 2 component
MDI Poly Ester 2 component
MDI Poly Ester Quasi 3 component system
PTMEG both Poly Ether and Poly Ester
Customerized items also can be accepted,kindly contact us for details.
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