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Baytec MS-052 is a modified diphenylmethane diisocyanate (MDI)-terminated polyester prepolymer used in the manufacture of high-property solid cast polyurethane elastomers. When extended with 1,4-butanediol, this material complies with FDA regulation 21 CFR 177.2600 (Rubber Articles Intended for Repeated Use) and may be used for wet and dry repeated-use food-contact applications. When extended with HQEE, it complies with 21 CFR 177.1680 (Polyurethane Resins) and may be used for repeated-use food contact only with dry foods having no free surface fats or oils. As with any product, use of Baytec MS-052 prepolymer in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
| Главная Информация | |
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| Рейтинг агентства | - Управление по санитарному надзору за качеством пищевых продуктов и медикаментов 21 CFR 177,2600
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| Формы | |
| Твердость | Номинальное значение | | Метод испытания |
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| Твердость дюрометра (Shore A) | 80 | | ASTM D2240 |
| Механические | Номинальное значение | Единица измерения | Метод испытания |
|---|
| Устойчивость к истиранию (1000 Cycles, 1000 g, H-18 Wheel) | 16.0 | mg | ASTM D4066 |
| Отклонение сжатия | | | ASTM D575 |
| 10% | 1.46 | MPa | ASTM D575 |
| 15% | 2.28 | MPa | ASTM D575 |
| 2% | 0.0552 | MPa | ASTM D575 |
| 20% | 3.07 | MPa | ASTM D575 |
| 25% | 3.93 | MPa | ASTM D575 |
| 5% | 0.600 | MPa | ASTM D575 |
| 50% | 11.9 | MPa | ASTM D575 |
| Эластомеры | Номинальное значение | Единица измерения | Метод испытания |
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| Tensile Stress | | | ASTM D412 |
| 100% strain | 4.69 | MPa | ASTM D412 |
| 200% strain | 6.76 | MPa | ASTM D412 |
| 300% strain | 10.2 | MPa | ASTM D412 |
| Прочность на растяжение (Break) | 37.0 | MPa | ASTM D412 |
| Удлинение при растяжении (Break) | 530 | % | ASTM D412 |
| Tear Strength | | | |
| -- 1 | 91.1 | kN/m | ASTM D624 |
| Cracking | 26 | kN/m | ASTM D1938 |
| Комплект сжатия (70°C, 22 hr) | 24 | % | ASTM D395 |
| Сопротивляемость Bayshore | 52 | % | ASTM D2632 |
| Дополнительная информация |
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| Appearance: Straw yellow liquidNCO: 5.10 to 5.50 wt%Flash Point, PMCC: >93°CSpecific Gravity at 80°C: 1.12Specific Gravity at 100°C: 1.11Viscosity at 80°C: 3270 mPa-sViscosity at 100°C: 1660 mPa-sNCO/OH Ratio: 1.05Stoichiometry: 95% TheoryPrepolymer Temperature: 80 to 90°CExtender Temperature: 50 to 70°CMold Temperature: 90 to 100°CPot Life: 5 to 9 minDemold: 30 to 40 min |
