Medical PET heat shrink tubing is an essential component in the design and manufacturing of medical devices. Its unique properties, including high shrink ratios, thin walls, and excellent electrical insulation, make it a reliable choice for ensuring the safety and functionality of medical products. As technology advances, the demand for such innovative materials continues to grow, further enhancing the capabilities of medical devices.
Key Features
Catheters: Used to provide insulation and protection for catheter components.
Wire Harnesses: Protects and organizes wires in medical devices.
Sealing: Provides a secure seal for various medical components, preventing contamination.
| PET Shrink Tube Technical Parameters |
| 项目(Item) | 单位（unit） | 测试方法(Test Methods)/ 测量工具(Test Tool) | 结果（Result） |
| 规格尺寸（specification and dimension） | 内径（inner diameter） | mm | 塞规(Plug Gauge) | 3 - 25 |
| 壁厚（Wall Thickness） | mm | 数显千分尺(Digimatic Micrometer) | 0.045 - 0.125 |
| 长度（Length ） | mm | 卡尺(caliper)/钢尺(steel rule) | 可定制切割(Customizable cutting) |
| 颜色（Colors） | / | 目视(visual) | 可定制颜色(Customizable colors) |
| 形状（shape） | / | 目视(visual) | 压扁后撑圆(Flatten and round) |
| 热特性（Thermal properties） | 收缩率（Shrinkage/Sizing） | % | 水浴锅(laboratory water bath) | 横向(lateral)：48±4
纵向(longitudinal)：8±3%（常规usual） |
| 熔点（Melting point） | ℃ | DSC | Tm≥220 |
| 长期使用温度（Long-term use Temperature Range） | ℃ | 烘箱(Oven) | -25—120 |
| 短期使用温度（Short-term use Temperature） | ℃ | 烘箱(Oven) | ＜200 |
| 收缩温度（Shrinking temperature） | ℃ | 热缩炉(Shrink furnace) | 70–190 |
| 机械特性（Mechanical properties） | 拉伸强度（Tensile strength） | MPa | ASTM D638 | ≥30 |
| 断裂伸长率（Elongation at break） | % | ASTM D638 | ≥200 |
| 电气特性（Electrical properties） | 表面电阻率（Surface resistivity） | Ω.cm | GB/T 1410 | ≥1×109 |
| 体积电阻率（Volume resistivity） | Ω.cm | GB/T 1410 | ≥1×1014 |
| 生物相容性（Biocompatibility) | / | ISO 10993 | 通过ISO 10993细胞毒性测试皮肤致敏测试皮内刺激测试急毒性和急热源性检测(Passed the ISO 10993 cytotoxicity test, skin sensitization test, intradermal irritation test, acute toxicity and acute heat source test) |
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