PFA含氟聚合物管
Perfluoroalkoxy (PFA) is a fully fluorinated translucent polymer. It has the lowest friction coefficient of all polymers, which makes the material highly resistant to wear and reduces potential replacement costs. PFA tubing is nearly inert to all chemicals and solvents, and it does not interact with the vast majority of chemicals, including bases, acids, or solvents. PFA is also temperature resistant, making it ideal for use in high-temperature environments where FEP tubing can not be utilized. PFA tubing has great thermal stability from -60°C to 260°C without degrading. PFA also has extremely low dielectric constant and dielectric dissipation.
特点和优点
- Excellent chemical resistance
- Wide range of operating temperature
- Non-stick properties
- Excellent insulation material
- Long product life
- Good resistance to alkalis, acids and chemicals
- Long continuous lengths of tubing available
- Custom sized available
应用
- High-purity, corrosive chemical handling
- PFA tubing is designed to use with PFA tube fittings or other types of connection ends such as metal flanges.
- Excellent performance with low surface tension chemistry
- Semiconductor applications including photolithography, CMP, bulk chemical delivery, and wet etch and clean processes
FEP含氟聚合物管
Flourinated Ethylene Propylene (FEP) has excellent electrical properties like PTFE because FEP consists of only fluorine and carbon atoms. The chemical resistance capability and mechanical characteristics are the same as PFA, however the heat resistance is lower than PFA.
特点和优点
- Low gas permeability
- Low coefficient of friction
- Good Corrosion Resistance
- Good dielectric strength
- Good Chemical resistant
- Good transmission of ultraviolet rays
应用
- 航空航天与运输技术
- 电子，零件和绝缘子
- 化学和制药制造
- 食品加工
- 环境科学
- 空气采样
- 流体输送装置
- 水处理系统
规范
PFA物理性质
| Item | Test Method | Unit | Standard Value |
| Density | ASTM D-3307 | -- | 2.12~2.17 |
| Melting Point (DSC) | ASTM D-3307 | °C | 295~305 |
| Tensile Strength | ASTM D-3307 | Mpa (kgf/cm2) | min 30 |
| Elongation | % | min 300 | |
| MFR Value | g/10min | 1.5~2.5 |
PFA应用尺寸图
| Size | O.D. | I.D. | Wall TK. | Tolerance | ||
| O.D. | Wall TK. | |||||
| mm Size | 3 | 3 | 2 | 0.5 | ±0.1 | ±0.05 |
| 4 | 4 | 3 | 0.5 | ±0.1 | ±0.05 | |
| 6 | 6 | 4 | 1 | ±0.1 | ±0.06 | |
| 8 | 8 | 6 | 1 | ±0.12 | ±0.06 | |
| 10 | 10 | 8 | 1 | ±0.12 | ±0.06 | |
| 12 | 12 | 10 | 1 | ±0.12 | ±0.06 | |
| 19 | 19 | 15.8 | 1.6 | ±0.12 | ±0.10 | |
| 25 | 25 | 22 | 1.5 | ±0.2 | ±0.10 | |
| Inch Size | 1/8" | 3.18 | 2.18 | 0.5 | ±0.10 | ±0.05 |
| 1/4" | 6.35 | 3.95 | 1.2 | ±0.10 | ±0.10 | |
| 3/8" | 9.53 | 6.35 | 1.6 | ±0.12 | ±0.10 | |
| 1/2" | 12.7 | 9.53 | 1.6 | ±0.12 | ±0.10 | |
| 3/4" | 19.05 | 15.8 | 1.6 | ±0.12 | ±0.10 | |
| 1" | 25.4 | 22.2 | 1.6 | ±0.2 | ±0.10 | |
| 1 1/4" | 31.8 | 28 | 1.9 | ±0.25 | ±0.15 | |
| 1 1/2" | 38.1 | 33.7 | 2.2 | ±0.25 | ±0.15 | |
*Length, tolerance the length of tube is shown as meter(s), tol is 0~≠2%. Customize size order is accepted. Surface roughness is as per SEMI F52-1101, μm<=0.25, μin<=10. Metal Dissolving volume is as per SEMI f57-0301.
FEP应用尺寸图
| 尺寸 | OD (mm) | ID (mm) |
| 1/4" | 6.35 | 4.35 |
| 1/4" | 6 | 4 |
| 3/8" | 9.53 | 7.53 |
| 1/2" | 12.7 | 9.52 |
*Customized size is available at request.