Texin® RxT70A
TPU(热塑性聚氨酯)
科思创 (原拜耳)(Covestro)
产品描述
Texin RxT70A resin is an aromatic polyether-based thermoplastic polyurethane. It can be processed by injection molding or extrusion.
Texin RxT70A is characterized by very good hydrolysis, good low temperature flexibility, resiliency and impact strength, high moisture vapor transmission rates and is plasticizer free. Typical medical applications include catheters and catheter balloons, specialty tubing and profiles, connectors, and soft overmolding applications. As with any product, the use of Texin RxT70A resin in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.
基本信息
| 原厂资料 | 物性表(英文) | |||
| 产品特性 | 高冲击耐低温冲击无塑化剂(PAEs)医疗级生物相容电子束灭菌耐伽马射线环氧乙烷灭菌(EtO)耐水解 | |||
| 法规认证 | FDA(食品药品监督管理局)ISO10993(生物相容性) | |||
| 成型方式 | 注塑挤出 | |||
技术参数
| 物理性能 | 值/单位 | 测试标准 | 测试条件 |
|---|---|---|---|
比重 | 1.07 - | ASTM D792 | |
熔体质量流动速率(MFR) | |||
200℃/10 kg | 32 g/10 min | ASTM D 1238 | |
收缩率 | |||
纵向(Flow) | 0.8 % | ASTM D 955 | 2.54 mm |
横向(Across Flow) | 0.8 % | ASTM D 955 | 2.54 mm |
磨耗 | 7 mg/1000cy | ASTM D 3489 | H-18, 1,000-g Load |
| 机械性能 | 值/单位 | 测试标准 | 测试条件 |
拉伸强度 | |||
100%延伸率时 | 3.4 Mpa | ASTM D 412 | |
300%延伸率时 | 5.2 Mpa | ASTM D 412 | |
- | 25.5 Mpa | ASTM D 412 | |
拉伸延伸率 | |||
断裂(brk) | 770 % | ASTM D 412 | |
弯曲模量 | 14.5 Mpa | ASTM D790 | 73°F (23°C) |
撕裂强度 | 60.5 kN/m | ASTM D 624 | Die C |
压缩永久形变 | 30 % | ASTM D 395 | Postcured, 22 Hours at 158°F (70°C) |
压缩永久形变 | 11 % | ASTM D 395 | Postcured, 22 Hours at 73°F (23°C) |
| 硬度性能 | 值/单位 | 测试标准 | 测试条件 |
邵氏硬度 A | 70 A | ASTM D 2240 | |
| 热学性能 | 值/单位 | 测试标准 | 测试条件 |
维卡软化温度(Vicat) | 75 °C | ASTM D1525 | Rate A |
| 其他性能 | 值/单位 | 测试标准 | 测试条件 |
黄色指数(YI) | 15 - | ASTM E 313 |