Teflon® PFA 440HPA
全氟烷氧基
The Chemours Company
产品说明:
For inventory control purposes product name may be followed by an X.
Products labeled PFA 440HPA and PFA 440HPA X are equivalent and all information in this document is applicable to both.
Typical Application
Applications for Teflon ™ PFA 440HPA include fluid handling components for critical, high-purity processes, like semiconductor, pharmaceutical, and biotechnology, as well as applications where purity in the parts-per-billion range is needed. Teflon ™ PFA 440HPA offers a slightly higher melt flow rate than Teflon ™ PFA 440HPB, providing greater processing ease.
Description
Teflon ™ PFA 440HPA is a special purpose fluoropolymer resin available in pellet form. This resin is a chemically modified form of Teflon ™ PFA 340 that combines many of the benefits of the parent resin (a relatively high typical melt flow rate of 16) with several additional benefits including enhanced purity, improved thermal stability while processing, and chemical inertness, for example, to ozonated fluids. Table 1 shows the typical property data for Teflon ™ PFA 440HPA.
Teflon ® PFA 440HPA is a premium resin with the lowest level of extractables designed to meet ultra-high purity requirements. Teflon ® PFA 440HPA has a relatively high melt flow rate (typical MFR of 16) for injection molding and extrusion processes, and the highest level of inertness due to stable end group polymer structure. The enhanced purity of Teflon ® PFA 440HPA makes it suitable for applications that require improved color, lower extractable fluorides, and freedom from other foreign materials. This product contains no additives and is designed for hostile chemical environments where purity in the parts-per-billion range is needed. Examples are in semiconductor manufacture, fluid handling systems for industry or life sciences, and instrumentation for precise measurements of fluid systems. Compared to other thermoplastics, the high melt strength and thermal stability of Teflon ® PFA 440HPA can be used to improve processing rates, combining the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene.
Properly processed products made from neat Teflon ® PFA 440HPA resin provide the superior properties characteristic of fluoroplastic resins: chemical inertness, exceptional dielectric properties, heat resistance, toughness and flexibility, low coefficient of friction, non-stick characteristics, negligible moisture absorption, low flammability, performance at temperature extremes, and excellent weather resistance.
In a flame situation, products of Teflon ® PFA 440HPA resist ignition and do not promote flame spread. When ignited by flame from other sources, their contribution of heat is very small and added at a slow rate with very little smoke.
供货地区：北美洲、拉丁美洲、欧洲、亚太地区
黄卡号码：E54681-244682
材料特性：纯度高、低摩擦系数、低吸湿性、低烟度、良好的电气性能、良好的熔体强度、流动性高、耐候良好、耐化学品良好、耐热中等、热稳定良好、韧性良好、食品接触的合规性
材料用途：液体处理
外观形式：粒子
加工方法：挤出、树脂传递成型、压缩模塑、注射成型
物料性能：
| 物理性能 | 额定值 | 单位制 | 测试方法 |
| 密度/比重 | 2.14 | g/cm³ | ASTM D792 |
| 熔流率（熔体流动速率）(372℃/5.0 kg) | 16 | g/10 min | ASTM D3307,ISO 12086 |
| 吸水率(24 hr) | < 0.030 | % | ASTM D570 |
| 硬度 | 额定值 | 单位制 | 测试方法 |
| 肖氏硬度(邵氏 D) | 55 | ASTM D2240,ISO 868 | |
| 机械性能 | 额定值 | 单位制 | 测试方法 |
| 抗张强度 | ASTM D3307,ISO 12086 | ||
| 23℃ | 24.8 | MPa | |
| 250℃ | 12.4 | MPa | |
| 伸长率 | ASTM D3307,ISO 12086 | ||
| 断裂,23℃ | 300 | % | |
| 断裂,250℃ | 480 | % | |
| 弯曲模量 | ASTM D790,ISO 178 | ||
| 23℃ | 586 | MPa | |
| 250℃ | 55.2 | MPa | |
| 热性能 | 额定值 | 单位制 | 测试方法 |
| 连续使用温度 | 260 | ℃ | |
| 熔融温度 | 305 | ℃ | ASTM D4591 |
| 电气性能 | 额定值 | 单位制 | 测试方法 |
| 体积电阻率 | 1.0E+18 | ohms·cm | ASTM D257,ISO 1325 |
| 介电强度 | |||
| 0.250 mm,方法A（短时间） | 80 | kV/mm | ASTM D149 |
| 0.250 mm | 80 | kV/mm | IEC 60243-1 |
| 介电常数(1 MHz) | 2.03 | ASTM D150,IEC 60250 | |
| 耗散因数(1 MHz) | < 2.0E-4 | ASTM D150,IEC 60250 | |
| 可燃性 | 额定值 | 单位制 | 测试方法 |
| UL 阻燃等级1 | V-0 | UL 94 | |
| 极限氧指数 | > 95 | % | ASTM D2863,ISO 4589-2 |
| 补充信息 | 额定值 | 单位制 | 测试方法 |
| Critical Shear Rate(372℃) | 56.0 | sec^-1 | |
| MIT Folding Endurance2(200.0 µm) | 2.0E+4 | Cycles | ASTM D2176 |
| 备注 1These results are based on laboratory tests under controlled conditions and do not reflect performance under actual fire conditions,current rating is a typical theoretical value. 2Depending on fabrication conditions |
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扎根于过去。放眼于未来。
Teflon™ PFA 是一种四氟乙烯-全氟烷氧基醚共聚物树脂，可以提供颗粒状和粉末状两种产品形态。这种氟聚合物树脂可以改进很多行业（包括化学加工、电子、半导体、制药和生物技术领域）生产的产品。
Teflon™ PFA 树脂的特性和优势
Teflon™ PFA 树脂可以用传统的热熔挤出工艺或注塑、压塑、滚塑成型、传递成型和吹塑工艺进行加工。Teflon™ PFA 树脂的熔体强度和热稳定性很高，有利于采用较大的模具孔和高温涂布工艺，从而提高加工速度。
这种树脂结合了传统热塑性树脂的易加工优势和 Teflon™ PTFE（聚四氟乙烯）的出色性能，包括：
⠐ 出色的耐化学腐蚀性
⠐ 卓越的电气性能
⠐ 高达 260℃ (500°F) 的连续工作温度
⠐ 强大的耐高温蠕变性能
⠐ 出色的低温韧性
⠐ 出色的阻燃性
Teflon™ PFA 产品系列
Teflon™ PFA 产品系列包括各种熔体流动速率 (MFR) 的树脂等级产品，这些产品适用于各种热塑成型工艺，包括管和薄膜挤出成型、注塑、传递成型、压塑成型和吹塑成型工艺。还可以提供用作涂层、薄膜或弥散材料的 PFA 产品。
Teflon™ PFA 300 系列
⠐ Teflon™ PFA 300 系列树脂是通用型 PFA 树脂，适用于模压或挤塑等热塑性成型工艺
Teflon™ PFA 400HP 系列
⠐ 完全氟化的 Teflon™ PFA 400HP 系列树脂专为满足化学流体处理行业对高纯度和最小萃取量的要求而设计。
⠐ Teflon™ PFA HP 氟聚合物树脂制成的组件具有出色的耐化学腐蚀性和耐环境应力开裂性。这种树脂几乎不受任何化学品和溶剂的影响。
Teflon™ PFA 900HP Plus 系列
⠐ Teflon™ PFA 900HP Plus 氟聚合物树脂具有与 Teflon™ PFA HP 等级产品一样出色的耐化学腐蚀性、高纯度和防离子污染性能，并且具有更长的抗挠曲寿命和更好的耐化学应力开裂性能。此外，这种树脂还赋予产品更高透明度和更好的表面光洁度，便于观察在水处理系统中的杂质并防止微生物在表面积聚。
⠐ 这种树脂能够提供更稳定可靠，无杂质污染以及耐含氟表面活性剂等特性，满足于半导体制造加工过程中日益严苛的要求。
