Teflon® PFA 440HPB
全氟烷氧基
The Chemours Company
產(chǎn)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 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, ultimately providing a higher degree of stress-crack resistance.
Description
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
供貨地區(qū)：北美洲、拉丁美洲、歐洲、亞太地區(qū)
材料特性：Excellent Weather Resistance、純度高、低摩擦系數(shù)、低吸濕性、低煙度、良好的電氣性能、良好的熔體強(qiáng)度、良好的柔韌性、流動性高、耐化學(xué)品良好、耐熱中等、熱穩(wěn)定良好、韌性良好、食品接觸的合規(guī)性
材料用途：液體處理
外觀形式：粒子
加工方法：擠出、樹脂傳遞成型、壓縮模塑、注射成型
物料性能：
| 物理性能 | 額定值 | 單位制 | 測試方法 |
| 密度/比重 | 2.14 | g/cm³ | ASTM D792 |
| 熔流率（熔體流動速率）(372℃/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 |
| 肖氏硬度(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 | ||
| 23℃ | 24.8 | MPa | |
| 250℃ | 12.4 | MPa | |
| 伸長率 | ASTM D3307,ISO 12086 | ||
| 斷裂,23℃ | 300 | % | |
| 斷裂,250℃ | 480 | % | |
| 彎曲模量 | ASTM D790,ISO 178 | ||
| 23℃ | 586 | MPa | |
| 250℃ | 55.2 | MPa | |
| 熱性能 | 額定值 | 單位制 | 測試方法 |
| 熔融溫度 | 305 | ℃ | ASTM D4591 |
| 電氣性能 | 額定值 | 單位制 | 測試方法 |
| 體積電阻率 | 1.0E+18 | ohms·cm | ASTM D257,ISO 1325 |
| 介電強(qiáng)度 | |||
| 0.250 mm,方法A（短時間） | 80 | kV/mm | ASTM D149 |
| 0.250 mm | 80 | kV/mm | IEC 60243-1 |
| 介電常數(shù)(1 MHz) | 2.03 | ASTM D150,IEC 60250 | |
| 耗散因數(shù)(1 MHz) | < 2.0E-4 | ASTM D150,IEC 60250 | |
| 可燃性 | 額定值 | 單位制 | 測試方法 |
| UL 阻燃等級1 | V-0 | UL 94 | |
| 極限氧指數(shù) | > 95 | % | ASTM D2863,ISO 4589-2 |
| 補充信息 | 額定值 | 單位制 | 測試方法 |
| Critical Shear Rate(372℃) | 50.0 | sec^-1 | |
| MIT Folding Endurance2(200.0 µm) | 3.0E+4 | Cycles | ASTM D2176 |
| 備注 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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扎根于過去。放眼于未來。
Teflon™ PFA 是一種四氟乙烯-全氟烷氧基醚共聚物樹脂，可以提供顆粒狀和粉末狀兩種產(chǎn)品形態(tài)。這種氟聚合物樹脂可以改進(jìn)很多行業(yè)（包括化學(xué)加工、電子、半導(dǎo)體、制藥和生物技術(shù)領(lǐng)域）生產(chǎn)的產(chǎn)品。
Teflon™ PFA 樹脂的特性和優(yōu)勢
Teflon™ PFA 樹脂可以用傳統(tǒng)的熱熔擠出工藝或注塑、壓塑、滾塑成型、傳遞成型和吹塑工藝進(jìn)行加工。Teflon™ PFA 樹脂的熔體強(qiáng)度和熱穩(wěn)定性很高，有利于采用較大的模具孔和高溫涂布工藝，從而提高加工速度。
這種樹脂結(jié)合了傳統(tǒng)熱塑性樹脂的易加工優(yōu)勢和 Teflon™ PTFE（聚四氟乙烯）的出色性能，包括：
? 出色的耐化學(xué)腐蝕性
? 卓越的電氣性能
? 高達(dá) 260℃ (500°F) 的連續(xù)工作溫度
? 強(qiáng)大的耐高溫蠕變性能
? 出色的低溫韌性
? 出色的阻燃性
Teflon™ PFA 產(chǎn)品系列
Teflon™ PFA 產(chǎn)品系列包括各種熔體流動速率 (MFR) 的樹脂等級產(chǎn)品，這些產(chǎn)品適用于各種熱塑成型工藝，包括管和薄膜擠出成型、注塑、傳遞成型、壓塑成型和吹塑成型工藝。還可以提供用作涂層、薄膜或彌散材料的 PFA 產(chǎn)品。
Teflon™ PFA 300 系列
? Teflon™ PFA 300 系列樹脂是通用型 PFA 樹脂，適用于模壓或擠塑等熱塑性成型工藝
Teflon™ PFA 400HP 系列
? 完全氟化的 Teflon™ PFA 400HP 系列樹脂專為滿足化學(xué)流體處理行業(yè)對高純度和最小萃取量的要求而設(shè)計。
? Teflon™ PFA HP 氟聚合物樹脂制成的組件具有出色的耐化學(xué)腐蝕性和耐環(huán)境應(yīng)力開裂性。這種樹脂幾乎不受任何化學(xué)品和溶劑的影響。
Teflon™ PFA 900HP Plus 系列
? Teflon™ PFA 900HP Plus 氟聚合物樹脂具有與 Teflon™ PFA HP 等級產(chǎn)品一樣出色的耐化學(xué)腐蝕性、高純度和防離子污染性能，并且具有更長的抗撓曲壽命和更好的耐化學(xué)應(yīng)力開裂性能。此外，這種樹脂還賦予產(chǎn)品更高透明度和更好的表面光潔度，便于觀察在水處理系統(tǒng)中的雜質(zhì)并防止微生物在表面積聚。
? 這種樹脂能夠提供更穩(wěn)定可靠，無雜質(zhì)污染以及耐含氟表面活性劑等特性，滿足于半導(dǎo)體制造加工過程中日益嚴(yán)苛的要求。
