VESTAKEEP® DC4470 R
聚醚醚酮
Gingiva-colored polyether ether ketone for dental applications
VESTAKEEP® DC4470 R is a gingiva-colored polyether ether ketone (PEEK) grade that is especially designed for removable dentures to meet the aesthetic demands of the patient.
For VESTAKEEP® DC4470 R, biocompatibility has been tested according to ISO 10993-1 recommendations for permanent mucous membrane contact.
The compound composition is optimised for high biocompatibility and superior mechanical, thermal and chemical resistance.
特性 | - Good Heat Resistance、耐化学性、良好生物兼容性
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用途 | |
机构评级 | |
形式 | |
密度 (73°F) | 1.36 | g/cm³ | ISO 1183 |
吸水率 (饱和, 73°F) | 0.40 | % | ISO 62 |
拉伸模量 | 638000 | psi | ISO 527-2 |
拉伸应力 (屈服) | 16000 | psi | ISO 527-2 |
拉伸应变 |
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| ISO 527-2 |
屈服 | 4.5 | % |
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断裂 | > 10 | % |
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弯曲模量 | 638000 | psi | ISO 178 |
弯曲应力 | 25400 | psi | ISO 178 |
悬壁梁缺口冲击强度 (73°F) | 2.6 | ft·lb/in² | ISO 180 |
热变形温度 |
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66 psi, 未退火 | 410 | °F | ISO 75-2/B |
264 psi, 未退火 | 311 | °F | ISO 75-2/A |
维卡软化温度 |
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-- | 635 | °F | ISO 306/A |
-- | 581 | °F | ISO 306/B |
熔融温度 2 | 644 | °F | ISO 11357-3 |
线形热膨胀系数 - 流动 (73 到 131°F) | 2.5E-5 | in/in/°F | ISO 11359-2 |
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