全氟烷氧基樹脂 PFA樹脂相對來說是比較新的可熔融加工的氟塑料。 PFA的熔點大約為580F，密度為2.13— 2.16g/cc（克/立方厘米）。PFA與 PTFE和FEP相似，但在302T以上時，機械性能略優于FEP，且可在高達500F下的溫度下使用，它的耐化學品性與PTEF相當。PFA的產品形式有用于模塑和擠塑的粒狀產品，用于旋轉模塑和涂料的粉狀產品；其半成品有膜、板、棒和管材。美國市場經銷的PFA樹脂有DUPOut公司的Teflon牌、Daikin公司的Neoflon牌、Ansimont公司的Hthen牌、HOechst Celanese公司的 Hostafl牌。PFA的用途與FEP類似。PFA（可溶性聚四氟乙烯〕耐熱、耐寒、化學穩定性、機械性、絕緣性、自潤滑性、耐折性、耐開裂性優異。公司開發有注塑、擠出，模壓料。2. 適用范圍:目前國內主要用于防腐防酸堿注塑件、高溫電線電纜、防酸堿內襯件，吹塑制品等。技術參數：比重（g/CM3）2.12-2.17
本公司 可以免費提供各種材料物性及各種材質認證 如：SGS UL MSDS ROHS MDS 等證明 ： 通過這些鏈接您能夠訪問供應商資料。我們盡量保證 準確數據資料； UL 黃卡含有 UL 驗證的易燃性和電氣特性物性說明
| Teflon® PFA 340 | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 345 | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 350 | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 416HP | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 440HPA | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 440HPB | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 445HP | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 450HP | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 451HP | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 940HP Plus | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 945HP Plus | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 950HP Plus | DuPont Fluoropolymers | PFA | |
| Teflon® PFA 951HP Plus | DuPont Fluoropolymers | PFA | |
| Teflon® PFA D 335D | DuPont Fluoropolymers | PFA | |
| Teflon® PFA TE9724 | DuPont Fluoropolymers | PFA | |
| Teflon® PFA TE9725 | DuPont Fluoropolymers | PFA |
物性說明
| 產品說明 | ||||
| For inventory control purposes product name may be followed by an X. Products labeled PFA 440HPB and PFA 440HPB X are equivalent and all information in this document is applicable to both. Typical Application Applications for DuPont™ Teflon ® PFA 440HPB 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 440HPB offers a slightly lower melt flow rate than Teflon ® PFA 440HPA, ultimay providing a higher degree of stress-crack resistance. Description DuPont™ Teflon ® PFA 440HPB is a special purpose fluoroplastic 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 14） 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 440HPB. Teflon ® PFA 440HPB is a premium resin with the lowest level of extractables designed to meet ultra-high purity requirements. Teflon ® PFA 440HPB has a relatively high melt flow rate 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 440HPB 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 440HPB 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 440HPB 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 440HPB 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. Teflon ® PFA 440HPB meets the requirements of ASTM D3307, Type I | ||||
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| 物理性能 | 額定值 | 單位制 | 測試方法 |
| 比重 | 2.16 | ASTM D792 | |
| 熔流率 （372°C/5.0 kg） | 14 | g/10 min | ASTM D3307, ISO 12086 |
| 吸水率 （24 hr） | < 0.030 | % | ASTM D570 |
| 硬度 | 額定值 | 單位制 | 測試方法 |
| 硬度計硬度 （邵氏 D） | 55 | ASTM D2240, ISO 868 |
| 機械性能 | 額定值 | 單位制 | 測試方法 |
| 抗張強度 | ASTM D3307, ISO 12086 | ||
| 73°F | 3630 | psi | |
| 482°F | 2030 | psi | |
| 伸長率 | ASTM D3307, ISO 12086 | ||
| 斷裂, 73°F | 300 | % | |
| 斷裂, 482°F | 480 | % | |
| 彎曲模量 | ASTM D790, ISO 178 | ||
| 73°F | 85600 | psi | |
| 482°F | 7980 | psi |
| 熱性能 | 額定值 | 單位制 | 測試方法 |
| 熔融溫度 | 581 | °F | ASTM D4591 |
| 電氣性能 | 額定值 | 單位制 | 測試方法 |
| 體積電阻率 | 1.0E+18 | ohm·cm | ASTM D257, ISO 1325 |
| 介電強度 | |||
| 0.00984 in 2 | 2000 | V/mil | ASTM D149 |
| 0.00984 in | 2000 | V/mil | IEC 60243-1 |
| 介電常數 （1 MHz） | 2.03 | ASTM D150, IEC 60250 | |
| 耗散因數 （1 MHz） | < 0.00020 | ASTM D150, IEC 60250 | |
| 可燃性 | 額定值 | 單位制 | 測試方法 |
| UL 阻燃等級 3 | V-0 | UL 94 | |
| 極限氧指數 | > 95 | % | ASTM D2863, ISO 4589-2 |
| 補充信息 | 額定值 | 單位制 | 測試方法 |
| Critical Shear Rate （702°F） | 50.0 | sec^-1 | |
| MIT Folding Endurance 4 （7.9 mil） | 1.5E+4 | Cycles | ASTM D2176 |
| Weather and Chemical Resistance: Outstanding | |||
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傳真號碼:86-
地址:廣東 東莞市
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