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  聚四氟乙烯板(也叫四氟板,鐵氟龍板,特氟龍板)分模壓和車削兩種。其制品用途廣，具有極為優(yōu)越的綜合性能：耐高低溫（-192℃-260℃)、耐腐蝕（強(qiáng)酸、強(qiáng)堿、王水等）、耐氣候、高絕緣、高潤滑、不粘附、無毒害等優(yōu)良特性。聚四氟乙烯（英文縮寫為Teflon或[PTFE,F4]）,被美譽(yù)為/俗稱“塑料王”，中文商品名“鐵氟龍”、“特氟隆”（teflon)、“特氟龍”、“特富隆”、“泰氟龍”等。

它是由四氟乙烯經(jīng)聚合而成的高分子化合物，其結(jié)構(gòu)簡式為 -[-CF2-CF2-]n- ，具有優(yōu)良的化學(xué)穩(wěn)定性、耐腐蝕性(聚四氟乙烯簡稱PTFE或F4，是當(dāng)今世界最耐腐蝕的材料之一，“塑料王”是聚四氟乙烯的俗稱，它是一種耐腐蝕性最好的塑料。它不受已知的酸、堿、鹽、氧化劑的腐蝕，就是王水也對它無可奈何，因此得名塑料王，除熔融金屬鈉和液氟外，能耐其它一切化學(xué)藥品，廣泛應(yīng)用于各種需要抗酸堿和有機(jī)溶劑的、密封性、高潤滑不粘性、電絕緣性和良好的抗老化耐力、耐溫優(yōu)異（能在250℃至-180℃的溫度下長期工作）。氟乙

溫度 -20～250℃（-4～482°F），允許驟冷驟熱，或冷熱交替操作。

壓力 -0.1～6.4Mpa（全負(fù)壓至64kgf/cm2）（Full vacuum to 64kgf/cm2）

它的產(chǎn)生解決了我國化工、石油、制藥等領(lǐng)域的許多問題。聚四氟乙烯密封件、墊圈、墊片 聚四氟乙烯密封件、密封墊圈是選用懸浮聚合聚四氟乙烯樹脂模塑加工制成。聚四氟乙烯與其他塑料相比具有耐化學(xué)腐蝕的特點，它已被廣泛地應(yīng)用作為密封材料和填充材料。

其在500攝氏度左右的完全熱分解產(chǎn)物有四氟乙烯、六氟丙烯和八氟環(huán)丁烷，這些產(chǎn)物在高溫時會分解出高腐蝕性的含氟氣體。

用途

各類聚四氟乙烯制品已在化工、機(jī)械、電子、電器、軍工、航天、環(huán)保和橋梁等國民經(jīng)濟(jì)領(lǐng)域中起到了舉足輕重的作用。

四氟乙烯板適用于-180℃~ 250℃溫度下，主要用作電器絕緣材料及接觸腐蝕介質(zhì)的襯里、支承滑塊、道軌密封件及潤滑材料，富柜家具把它用于輕工業(yè)中，廣泛應(yīng)用于化工、醫(yī)藥、染料業(yè)容器、貯槽、反應(yīng)塔釜、大型管道的防腐襯里材料；航空、軍事等重工業(yè)領(lǐng)域；機(jī)械、建筑、交通橋梁滑塊、導(dǎo)軌；印染、輕工、紡織業(yè)的防粘材料等．ta:image/svg+xml;charset=utf-8,%3Csvg class='icon' viewBox='0 0 1024 1024' xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cdefs%3E%3Cstyle%3E@font-face{font-family:feedback-iconfont;src:url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.eot?%23iefix) format(%26apos;embedded-opentype%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.woff2) format(%26apos;woff2%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.woff) format(%26apos;woff%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.ttf) format(%26apos;truetype%26apos;),url(//at.alicdn.com/t/font_1031158_1uhr8ri0pk5.svg%23iconfont) format(%26apos;svg%26apos;)}%3C/style%3E%3C/defs%3E%3Cpath d='M862.057 708.024H774.74a22.958 22.958 0 0 0-22.565 23.35V910.72a23.743 23.743 0 0 0 6.671 16.483 21.78 21.78 0 0 0 15.894 6.671h87.318a21.584 21.584 0 0 0 15.698-6.671 23.743 23.743 0 0 0 6.672-16.483V731.57a24.724 24.724 0 0 0-6.476-16.678 22.565 22.565 0 0 0-15.894-6.868z' fill='%23ddd'/%3E%3Cpath d='M861.861 517.886h-699.92a22.958 22.958 0 0 0-22.76 23.547v89.476a22.958 22.958 0 0 0 22.76 22.958h268.43a14.913 14.913 0 0 1 14.717 14.913v242.136a22.958 22.958 0 0 0 6.672 16.287 22.173 22.173 0 0 0 15.894 6.671h88.3a22.173 22.173 0 0 0 15.893-6.671 22.958 22.958 0 0 0 6.671-16.287V668.387a15.698 15.698 0 0 1 4.317-10.792 14.717 14.717 0 0 1 10.4-4.317h268.626a22.958 22.958 0 0 0 22.958-23.154v-88.691a22.958 22.958 0 0 0-22.958-23.547z' fill='%23ddd'/%3E%3Cpath d='M261.033 708.024h-87.318a22.958 22.958 0 0 0-22.565 23.35V910.72a23.743 23.743 0 0 0 6.671 16.483 21.78 21.78 0 0 0 15.894 6.671h87.318a22.37 22.37 0 0 0 15.894-6.671 24.724 24.724 0 0 0 6.476-16.68V731.375a22.958 22.958 0 0 0-22.37-23.35zm213.292-427.761h87.122q22.566 0 22.566 22.565v145.007q0 22.566-22.566 22.566h-87.122q-22.565 0-22.565-22.566V302.828q0-22.565 22.565-22.565zM161.746 90.125H861.86q22.566 0 22.566 22.565v85.553q0 22.565-22.566 22.565H161.746q-22.566 0-22.566-22.565V112.69q0-22.565 22.566-22.565zm612.993 190.138h87.122q22.566 0 22.566 22.565v145.007q0 22.566-22.566 22.566H774.74q-22.565 0-22.565-22.566V302.828q0-22.565 22.565-22.565zm-601.024 0h87.122q22.566 0 22.566 22.565v145.007q0 22.566-22.566 22.566h-87.122q-22.565 0-22.565-22.566V302.828q0-22.565 22.565-22.565z' fill='%23ddd'/%3E%3C/svg%3E"); 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