Texin® 250
TPU(热塑性聚氨酯)
科思创 (原拜耳)(Covestro)
产品描述
Texin 250 resin is an aromatic polyester-based thermoplastic polyurethane with a Shore hardness of approximately 50D. It is processed primarily by extrusion and blow molding but can also be used for injection molding.
Texin 250 resin is characterized by a low gel content, good clarity, good abrasion resistance, and very good chemical resistance to oils, solvents, and other nonaqueous solutions. Texin 250 natural color resin complies with FDA food-contact regulations 21 CFR 177.1680 (Polyurethane Resins) and 177.2600 (Rubber Articles Intended for Repeated Use), subject to the limitations of these and any other applicable regulations. A major feature of Texin 250 resin is its wide processing window, which allows for ease of film and sheet production. Typical applications include belting, hose, cable jackets, hose jackets, athletic soles, film, tubing, and extruded profiles. As with any product, use of Texin 250 resin in a given application must be tested (including field testing, etc.) 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 | 耐磨食品接触级耐化学性耐油耐溶剂 | |||
法规认证 | FDA(食品药品监督管理局) | |||
成型方式 | 注塑挤出吹塑 |
技术参数
物理性能 | 值/单位 | 测试标准 | 测试条件 |
---|---|---|---|
比重 | 1.22 - | ASTM D792 | |
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 | 70 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 | 11.7 Mpa | ASTM D 412 | |
300%延伸率时 | 31.7 Mpa | ASTM D 412 | |
- | 46.2 Mpa | ASTM D 412 | |
拉伸延伸率 | |||
断裂(brk) | 400 % | ASTM D 412 | |
弯曲模量 | 36 Mpa | ASTM D790 | 158°F (70°C) |
弯曲模量 | 83 Mpa | ASTM D790 | 73°F (23°C) |
撕裂强度 | 136 kN/m | ASTM D 624 | Die C |
压缩永久形变 | 35 % | ASTM D 395 | 22 Hours at 158°F (70°C) |
压缩永久形变 | 15 % | ASTM D 395 | 22 Hours at 73°F (23°C) |
回弹性 | 25 % | ASTM D 2632 | Bayshore Resilience |
硬度性能 | 值/单位 | 测试标准 | 测试条件 |
邵氏硬度 A | 95 A | ASTM D 2240 | |
邵氏硬度 D | 50 D | 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) | 115 °C | ASTM D1525 | Rate A (50°C/h), Loading 1 (10 N) |
玻璃化温度(Tg) | -20 °C | Internal |