Описание материалов:
Baytec 352 is a two-component, one-shot system that yields a solid polyurethane elastomer with good mechanical properties in the hardness range of Shore 75A to 90A. As with any product, use of Baytec 352 in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
| Твердость | Номинальное значение | | Метод испытания |
|---|
| Твердость дюрометра (Shore A) | 76 | | ASTM D2240 |
| Механические | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Устойчивость к истиранию (1000 Cycles) | 37.0 | mg | ASTM D3489 |
| Эластомеры | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Прочность на растяжение (Break) | 16.6 | MPa | ASTM D412 |
| Удлинение при растяжении (Break) | 410 | % | ASTM D412 |
| Tear Strength | | | |
| -- 1 | 47.8 | kN/m | ASTM D624 |
| Cracking | 13 | kN/m | ASTM D1938 |
| Комплект сжатия (70°C, 22 hr) | 84 | % | ASTM D395B |
| Сопротивляемость Bayshore | 33 | % | ASTM D2632 |
| Термокомплект | Номинальное значение | | |
|---|
| Компоненты термокомплекта | | | |
| Part C 2 | Mixing ratio by weight: 5.0 | | |
| Component a 3 | Mixing ratio by weight: 33 | | |
| Component B 4 | Mixing ratio by weight: 100 | | |
| Дополнительная информация |
|---|
| Values at an Index of 1.05Part A
Type: Isocyanate
Appearance: Pale yellow liquid
Specific Gravity @ 25°C: 1.22
Viscosity @25°C: 105 to 175 mPa
Flash Point, PMCC: 213°C
NCO: 25.5 to 26.5 wt%
Bulk Density at 25°C: 10.17 lb/gal
Part B
Type: Polyol
Appearance: White solid
Specific Gravity @ 25°C: 1.11
Viscosity @73°C: 1620 mPa-s
Flash Point, PMCC: 110°C
Bulk Density at 25°C: 9.179 lb/gal
Water: <0.05 wt% max
Hydroxyl Number: 45 to 53 mg KOH/g
Acid Number: 0.5 mg KOH/g max
Baytec 352 Isocyanate Temperature: 25°CBaytec 352 Polyol/Extender Blend Temperature: 80°CMold Temperature: 110°CDemold Time: 1 to 4 hrPost Cure: 16 hr at 110°C |
| Примечание |
|---|
| 1 . | C mould |
| 2 . | 1,4 Butone Diol |
| 3 . | Isocyanate |
| 4 . | Polyol |
