Описание материалов:
Bayflex XGT 2 is an elastomeric polyurethane system used in the reaction injection molding (RIM) process. The system is supplied as two liquid components: Component A is a modified diphenylmethane diisocyanate (MDI), and Component B is a polyether polyol system. The extended gel time of Bayflex XGT 2 gives equipment designers the flexibility to create large, complex parts that can be molded on existing injection machinery.
The resin's soft feel and the ability to tailor part density through the addition of barium sulfate make this product ideal for applications that require some level of sound absorption, such as floor coverings in heavy trucks or equipment. In addition, the material is soft enough to be used for producing seals, gaskets and wire harness type applications. As with any product, use of the Bayflex XGT 2 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
| Главная Информация | |
|---|
| Характеристики | - Снижение уровня шума
- Мягкий
|
| Используется | - Шайба
- Уплотнение
- Применение в автомобильной области
|
| Формы | |
| Метод обработки | - Литье под давлением реакции (обод)
|
| Физический | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Удельный вес | 1.03 | g/cm³ | ASTM D1622, ASTM D1505 |
| Твердость | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Твердость дюрометра | | | ASTM D2240 |
| Shaw A, 1 sec | 69 | | ASTM D2240 |
| Shaw A, 5 seconds | 69 | | ASTM D2240 |
| Эластомеры | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Прочность на растяжение | | | ASTM D412 |
| Transverse flow
: Yield 1 | 4.39 | MPa | ASTM D412 |
| Flow
: Yield 2 | 4.39 | MPa | ASTM D412 |
| Удлинение при растяжении 3 | | | ASTM D412 |
| Transverse flow
: Fracture | 170 | % | ASTM D412 |
| Flow
: Fracture | 170 | % | ASTM D412 |
| Tear Strength 4 | | | ASTM D624 |
| Transverse flow | 14.1 | kN/m | ASTM D624 |
| Flow | 14.5 | kN/m | ASTM D624 |
| Термокомплект | Номинальное значение | | |
|---|
| Компоненты термокомплекта | | | |
| Component a | Mixing ratio by weight: 38 | | |
| Component B | Mixing ratio by weight: 100 | | |
| Дополнительная информация |
|---|
| Part A
Type: Isocyanate
Specific Gravity @ 25°C: 1.21
Viscosity @25°C: 700 mPa-s
Flash Point PMCC: 213 °C
NCO: 22.6 to 23.1 wt%
Part B
Type: Polyol
Specific Gravity @ 25°C: 1.05
Viscosity @25°C: 1200 mPa-s
Flash Point PMCC: 114 °C
Water: 0.09 wt% max
Molding Parameters
Isocyanate Temperature: 38 to 43°C
Slurry Temperature: 38 to 43°C
Slurry or Polyol Nucleation: 5 to 10%
Maximum Shot Time: 9 sec
Typical Cure Time, 0.125 in: 3 min
Polyol Mixhead Pressure: 1900 to 2100 psi
Isocyanate Mixhead Pressure: 1900 to 2100 psi |
| Инъекция | Номинальное значение | Единица измерения | |
|---|
| Температура формы | 60.0 - 71.1 | °C | |
| Примечание |
|---|
| 1 . | 510 mm/min |
| 2 . | C mold, 510mm/min |
| 3 . | 510 mm/min |
| 4 . | C mould |
