Описание материалов:
Bayflex 956 is a fully compounded polyether-based polyurethane system consisting of two liquid components which can be water-blown. Component A is a modified diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. The Bayflex 956 system is used in the manufacture of microcellular polyurethane shoe soles. Soles prepared from these components combine light weight, comfort, and durability. Processibility and dynamic flexural properties are excellent over a wide range of densities. The combination of excellent physical properties and ease of processing has made the Bayflex 956 system a prime soling material for fashion and casual shoes. As with any product, use of the Bayflex 956 system in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.
| Главная Информация | |
|---|
| Характеристики | - Обрабатываемость, хорошая
- Хорошая гибкость
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| Используется | |
| Физический | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Удельный вес | 0.481 - 0.545 | g/cm³ | Internal method |
| Твердость | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Твердость дюрометра (Shore A) | 51 - 58 | | ASTM D2240 |
| Механические | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Устойчивость к истиранию (1000 Cycles, 1000 g, H-18 Wheel) | 30.0 - 70.0 | mg | ASTM D3489 |
| Ross Flex 1 | | | ASTM D1052 |
| -29°C, 6.35 mm | > 5.0E+4 | Cycles | ASTM D1052 |
| -18°C, 6.35 mm | > 1.0E+5 | Cycles | ASTM D1052 |
| Эластомеры | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Прочность на растяжение (Break) | 3.45 - 4.14 | MPa | ASTM D412 |
| Удлинение при растяжении (Break) | 350 - 450 | % | ASTM D412 |
| Tear Strength | | | |
| -- 2 | 3.33 - 4.38 | kN/m | Internal method |
| -- 3 | 15.8 - 19.3 | kN/m | ASTM D624 |
| Термокомплект | Номинальное значение | | |
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| Компоненты термокомплекта 4 | | | |
| Component a | Mixing ratio by weight: 78 | | |
| Component B | Mixing ratio by weight: 100 | | |
| Дополнительная информация |
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| Part A
Type: Isocyanate
Specific Gravity @ 25°C: 1.20
Viscosity @25°C: 1100 mPa*s
Flash Point PMCC: 207°C
NCO: 18.7 - 19.1 wt%
Part B
Type: Polyol
Specific Gravity @ 25°C: 1.06
Viscosity @25°C: 1000 to 1500 mPa*s
Flash Point PMCC: 126°C
Water: 0.38 to 0.44 wt%
Hydroxyl Number: 170 to 180 mg KOH/g
Material Temperature: 28 to 32°CMold Temperature: 43 to 51°CDemold Time: 3.5 minLinear Shrinkage @.5 g/cm³: <1.0%Hand Mix Reactivity @ 28°C
Cream Time: 9 to 13 sec
Tack Free: 10 to 25 sec
Pull Time: 25 to 35 sec
Free-Rise Density: 15 to 18 lb/ft³ |
| Примечание |
|---|
| 1 . | 0% Cut Growth |
| 2 . | Split |
| 3 . | C mould |
| 4 . | 98 Index |
