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(diǎn)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(shí)，機(jī)械性能略優(yōu)于FEP，且可在高達(dá)500F下的溫度下使用，它的耐化學(xué)品性與PTEF相當(dāng)。PFA的產(chǎn)品形式有用于模塑和擠塑的粒狀產(chǎn)品，用于旋轉(zhuǎn)模塑和涂料的粉狀產(chǎn)品；其半成品有膜、板、棒和管材。美國市場經(jīng)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(xué)穩(wěn)定性、機(jī)械性、絕緣性、自潤滑性、耐折性、耐開裂性優(yōu)異。公司開發(fā)有注塑、擠出，模壓料。2. 適用范圍:目前國內(nèi)主要用于防腐防酸堿注塑件、高溫電線電纜、防酸堿內(nèi)襯件，吹塑制品等。技術(shù)參數(shù)：比重（g/CM3）2.12-2.17
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| 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 |
性物性說明
| 產(chǎn)品說明 | |
| For inventory control purposes product name may be followed by an X. Products labeled PFA 440HPA and PFA 440HP are equivalent and all information in this document is applicable to both. Typical Application Applications for DuPont™ 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 DuPont™ Teflon ® PFA 440HPA 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 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. Teflon ® PFA 440HPA meets the requirements of ASTM D3307, Type I | |
| 總體 | |
| 材料狀態(tài) | 已商用：當(dāng)前有效 |
| 資料 1 | Technical Datasheet （English） |
| UL 黃卡 2 | E54681-244682 |
| 搜索 UL 黃卡 | DuPont FluoropolymersTeflon® PFA |
| 供貨地區(qū) | 北美洲南美洲歐洲亞太地區(qū) |
| 性能特點(diǎn) | High Purity低摩擦系數(shù)良好的電氣性能良好的熔體強(qiáng)度流動(dòng)性高耐化學(xué)性良好耐氣候影響性能良好耐熱性，中等熱穩(wěn)定性，良好韌性良好食品接觸的合規(guī)性吸潮性差煙釋放，低 |
| 用途 | 液體處理 |
| 機(jī)構(gòu)評級 | EU 10/2011FDA 21 CFR 177.1550 |
| 形式 | 顆粒料 |
| 加工方法 | 擠出樹脂傳遞成型壓縮模塑注射成型 |
| 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） | 16 | 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(jì)硬度 （邵氏 D） | 55 | ASTM D2240, ISO 868 |
| 機(jī)械性能 | 額定值 | 單位制 | 測試方法 |
| 抗張強(qiáng)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(qiáng)度 | |||
| 0.00984 in 3 | 2000 | V/mil | ASTM D149 |
| 0.00984 in | 2000 | V/mil | IEC 60243-1 |
| 介電常數(shù) （1 MHz） | 2.03 | ASTM D150, IEC 60250 | |
| 耗散因數(shù) （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 4 | V-0 | UL 94 | |
| 極限氧指數(shù) | > 95 | % | ASTM D2863, ISO 4589-2 |
| 補(bǔ)充信息 | 額定值 | 單位制 | 測試方法 |
| Critical Shear Rate （702°F） | 56.0 | sec^-1 | |
| MIT Folding Endurance 5 （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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