全氟烷氧基樹(shù)脂 PFA樹(shù)脂相對(duì)來(lái)說(shuō)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(guó)市場(chǎng)經(jīng)銷的PFA樹(shù)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(rùn)滑性、耐折性、耐開(kāi)裂性優(yōu)異。公司開(kāi)發(fā)有注塑、擠出,模壓料。2. 適用范圍:目前國(guó)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 |
物性說(shuō)明
產(chǎn)品說(shuō)明 | ||||
For inventory control purposes product name may be followed by an X. Products labeled PFA 345 and PFA 345 X are equivalent and all information in this document is applicable to both. Typical Application Applications for DuPont™ Teflon ® PFA 345 include extruded tubing, wire and cable insulation, injection molded parts, and chemically resistant linings for bellows, valves, fittings, pipes, pumps, and other fluid-handling components. Description DuPont™ Teflon ® PFA 345 is a medium melt flow rate fluoroplastic resin available in pellet form. Compared with Teflon ® PFA 340, it offers increased flex life and greater resistance to environmental stress-cracking (Teflon ® PFA 345 offers a typical MIT folding endurance of 50,000* compared to 15,000 in Teflon ® PFA 340). Table 1 shows the typical property data for Teflon ® PFA 345. Teflon ® PFA 345 is used when traditional extrusion and molding processes are required for producing products with the superior properties of a fluoroplastic resin. Compared to other thermoplastics, the high melt strength and thermal stability of Teflon ® PFA 345 can be used to improve processing rates. Compared with other fluoroplastics, creep resistance at high service temperatures provides a superior balance and level of end-use properties. Teflon ® PFA 345 combines the processing ease of conventional thermoplastics with many properties similar to those of polytetrafluoroethylene. Properly processed products made from neat Teflon® PFA 345 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 345 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 345 meets the requirements of ASTM D3307, Type III | ||||
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材料狀態(tài) |
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資料 1 |
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性能特點(diǎn) |
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用途 |
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加工方法 |
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物理性能 | 額定值 | 單位制 | 測(cè)試方法 |
比重 | 2.15 | ASTM D792 | |
熔流率 (372°C/5.0 kg) | 5.0 | 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(cè)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(cè)試方法 |
抗張強(qiáng)度 (73°F) | 4210 | psi | ASTM D3307, ISO 12086 |
伸長(zhǎng)率 (斷裂, 73°F) | 300 | % | ASTM D3307, ISO 12086 |
彎曲模量 (73°F) | 79900 | psi | ASTM D790, ISO 178 |
熱性能 | 額定值 | 單位制 | 測(cè)試方法 |
熔融溫度 | 581 | °F | ASTM D4591 |
電氣性能 | 額定值 | 單位制 | 測(cè)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 2 | 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(cè)試方法 |
UL 阻燃等級(jí) 3 | 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(cè)試方法 |
Critical Shear Rate (702°F) | 21.0 | sec^-1 | |
MIT Folding Endurance 4 (7.9 mil) | 5.0E+4 | Cycles | ASTM D2176 |
Weather and Chemical Resistance: Outstanding |
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:86-
傳真號(hào)碼:86-
地址:廣東 東莞市
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