Teflon knowledge
特氟龍知識
特氟龍高性能特種涂料是以聚四氟乙稀為基體樹脂的氟涂料，英文名稱為Teflon，因為發(fā)音的緣故，通常又被稱之為鐵氟龍、鐵富龍、特富龍、特氟隆等等（皆為Teflon的譯音）。特氟龍（鐵氟龍）涂料是一種獨一無二的高性能涂料，結(jié)合了耐熱性、化學惰性和優(yōu)異的絕緣穩(wěn)定性及低摩擦性，具有其他涂料無法抗衡的綜合優(yōu)勢，它應用的靈活性使得它能用于幾乎所有形狀和大小的產(chǎn)品上。
特氟龍分為PTFE、FEP、PFA、ETFE幾種基本類型:
特氟龍PTFE：PTFE（聚四氟乙烯）不粘涂料可以在260℃連續(xù)使用，具有最高使用溫度290-300℃，極低的摩擦系數(shù)、良好的耐磨性以及極好的化學穩(wěn)定性。
特氟龍FEP：FEP（氟化乙烯丙稀共聚物）不粘涂料在烘烤時熔融流動形成無孔薄膜，具有卓越的化學穩(wěn)定性、極好的不粘特性，最高使用溫度為200℃。
特氟龍PFA：PFA（過氟烷基化物）不粘涂料與FEP一樣在烘烤時熔融流動形成無孔薄膜。PFA的優(yōu)點是具有更高的連續(xù)使用溫度260℃，更強的剛韌度，特別適合使用在高溫條件下防粘和耐化學性使用領域。
特氟龍ETFE：ETFE是一種乙烯和四氟乙烯的共聚物，該樹脂是最堅韌的氟聚合物，可以形成一層高度耐用的涂層，具有卓越的耐化學性，并可在150℃下連續(xù)工作。
經(jīng)過特氟龍涂裝后，具有以下特性：
1、不粘性：幾乎所有物質(zhì)都不與特氟龍涂膜粘合。很薄的膜也顯示出很好的不粘附性能。
2、耐熱性：特氟龍涂膜具有優(yōu)良的耐熱和耐低溫特性。短時間可耐高溫到300℃，一般在240℃~260℃之間可連續(xù)使用，具有顯著的熱穩(wěn)定性，它可以在冷凍溫度下工作而不脆化，在高溫下不融化。
3、滑動性：特氟龍涂膜有較低的摩擦系數(shù)。負載滑動時摩擦系數(shù)產(chǎn)生變化，但數(shù)值僅在0.05-0.15之間。
4、抗?jié)裥裕禾胤埻磕け砻娌徽此陀唾|(zhì)，生產(chǎn)操作時也不易沾溶液，如粘有少量污垢，簡單擦拭即可清除。停機時間短，節(jié)省工時并能提高工作效率。
5、耐磨損性：在高負載下，具有優(yōu)良的耐磨性能。在一定的負載下，具備耐磨損和不粘附的雙重優(yōu)點。
6、耐腐蝕性：特氟龍幾乎不受藥品侵蝕，可以保護零件免于遭受任何種類的化學腐蝕。
產(chǎn)品包裝規(guī)格： 20KG。
涂料外觀：透明亮光。
涂膜硬度：高于4H，看基材的選擇，最高9H。（普通特氟龍涂層只高于2H）
涂膜光澤度：40度-80度（噴涂操作占很大影響，太厚表面會變粗糙）
典型使用或基材、注意：（鋁、不銹鋼、陶瓷、冷板鐵皮、鑄鐵、模具金屬等）
物理常數(shù)：
涂料效果：高光。
顏色：透明 銀色 灰色 黑色等。
涂料比重：1.2
涂料固體份：40 士 1%
涂料粘度（1）：100-350CPS
涂料覆蓋率：10左右（平方米/每公斤）
操作使用方法
基材涂裝前準備：除油，噴砂（可使用金剛砂60到80目）（沒有噴砂器材可直接粗化處理后噴涂）。
涂料過濾：100目以上過濾。
涂料干燥燒結(jié)溫度：預熱基材50-60度后噴涂（也可以不預熱），烘烤恒溫280度約15分鐘。需慢慢升至280度，否則可能導致涂層起皮
涂膜厚度：20-25微米
注意事項：
a.使用壓縮空氣噴涂，噴涂前必須除水
b.請把底部沉淀物搖均勻在使用
c.噴涂生產(chǎn)時，做好防護措施，以避免吸入在噴涂加工時產(chǎn)生的霧氣
d.噴涂后須清洗噴槍，（酒精）
常溫固化注意事項：
1.本產(chǎn)品為單組份，在常溫中可自動固化，表面干燥是是30-60分鐘，完全固化時間是24-36小
時，溫度對固化時間有顯著影響，溫度高則固化快。
2.本品完全固化后，方可投入使用。
3.使用時應即時將蓋子蓋好，避免產(chǎn)品與空氣接觸時間過長而發(fā)生固化。
4.操作和使用工具.設備應清潔無塵。
5.操作現(xiàn)場要注意通風.注意防火。
Teflon high-performance special coating is a fluorine coating based on Teflon resin, the English name is Teflon, because of the pronunciation, it is usually called Teflon, Teflon, Teflon, Teflon and so on (all for the translation of Teflon).Teflon (teflon) coating is a unique high-performance coating that combines heat resistance, chemical inertness, excellent insulation stability and low friction. It has comprehensive advantages that no other coating can compete with. The flexibility of its application enables it to be used in almost all shapes and sizes of products.
Teflon can be divided into PTFE, FEP, PFA and ETFE.
Teflon PTFE, PTFE (polytetrafluoroethylene) non-stick coating can be used in 260 ℃, the highest temperature 290-300 ℃, low friction coefficient, good wear resistance and excellent chemical stability.
Teflon FEP: FEP (fluorinated ethylene propylene copolymer) non-stick coating melt flow during baking non-porous membrane formation, has excellent chemical stability, excellent non-stick characteristics, the highest temperature is 200 ℃.
Teflon PFA: like FEP, PFA (perfluoroalkyl compound) nonstick coating melts and flows during baking to form non-porous film.PFA has the advantage of continuous temperature 260 ℃, has higher stronger GangRen degrees, especially suitable for use under the condition of high temperature resistant glue and chemical resistance to use areas.
Teflon ETFE: ETFE is a and tetrafluoroethylene ethylene copolymer, the resin is the most tough fluorine polymer, can form a layer of highly durable coating has excellent chemical resistance, and can work continuously under 150 ℃.
After teflon coating, it has the following characteristics:
1, non-viscous: almost all substances are not with teflon coating adhesion.Very thin film also shows very good nonadhesion performance.
2, heat resistance: teflon coating has excellent heat and low temperature resistance.Resistant to high temperature to 300 ℃, short time average between 240 ℃ ~ 260 ℃ can be continuous use, has significant thermal stability, it can work under freezing temperature and not brittle, not melt at high temperature.
3, sliding: teflon coating has a low coefficient of friction.The friction coefficient changes during load sliding, but the value is only between 0.05 and 0.15.
4, moisture resistance: teflon coating surface is not stained with water and oil, production operation is not easy to touch the solution, if there is a small amount of dirt, simple wipe can be removed.Short down time, saving time and improving work efficiency.
5, wear resistance: under high load, with excellent wear resistance.Under certain load, it has the double advantages of wear resistance and non-adhesion.
6, corrosion resistance: teflon is almost free from drug corrosion, can protect parts from any kind of chemical corrosion.
Product packaging specification: 20KG.
Coating appearance: transparent light.
Film hardness: higher than 4H, depending on the choice of substrate, the highest 9H.(ordinary teflon coating is only higher than 2H)
Coating glossiness: 40 -80 (spraying operation is very important, too thick surface will become rough)
Typical use or base material, note :(aluminum, stainless steel, ceramics, cold plate iron, cast iron, mold metal, etc.)
Physical constants:
Paint effect: highlights.
Color: transparent, silver, grey, black, etc.
Proportion of coating: 1.2
Coating solids: 40%1%
Coating viscosity (1) : 100-350CPS
Coating coverage: about 10 m2 / kg
Operation method
Preparation before substrate coating: in addition to oil, sandblasting (can use emery 60 to 80 mesh) (no sandblasting equipment can be directly roughened after spraying).
Coating filtration: over 100 mesh filtration.
Paint drying and sintering temperature: preheat the substrate 50-60 degrees before spraying (can also not preheat), baking constant temperature of 280 degrees about 15 minutes.Rise slowly to 280 degrees, or it may cause peeling of the coating
Film thickness: 20-25 microns
Notes:
A. Spray with compressed air. Water must be removed before spraying
B. Shake the bottom sediment evenly before use
C. During spraying production, protective measures should be taken to avoid inhaling fog generated during spraying process
D. Spray gun must be cleaned after spraying (alcohol)
Notes for curing at room temperature:
1. This product is a single component, which can be automatically cured at room temperature. The surface drying time is 30-60 minutes, and the complete curing time is 24-36 minutes
, the temperature has a significant impact on the curing time, the temperature is high curing fast.
2. This product can only be put into use after fully curing.
3. The cover should be closed immediately when using to avoid curing of the product due to prolonged contact with air.
4. Operate and use tools. Equipment should be clean and dust-free.
5. Pay attention to ventilation and fire prevention at the operation site.
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專業(yè)研發(fā)、生產(chǎn)銷售不粘涂料耐高溫及特種工業(yè)涂料的高科技精細化工企業(yè)，產(chǎn)品包括:有機硅涂料, PES耐高溫涂料，PTFE涂料(聚四氟乙烯)，氟納米涂料，陶瓷涂料等
