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Résistance chimique du FEP

Bien que le FEP est similaire au PTFE, il existe un certain nombre de différences importantes. Le FEP a un coefficient de friction légèrement plus élevé, une température de service plus basse et il est plus transparent que le PTFE. La résistance à la perméabilité des gaz et de vapeur est meilleure et le FEP possède également des valeurs exceptionnelles de transmission en UV.

Remarque: la résistance chimique de chaque polymère est largement déterminée par la structure chimique du matériau et à la résistance du maillon le plus faible dans cette structure.

Légendes des abréviations

R - Resistant/Resistant
LR - Limited Resistance/Résistance limitée
NR - Not Recommended/Pas recommandé
ND - No Data/Pas de données disponible

Les propriétés du matériau peuvent varier en fonction de la méthode de traitement, le type de composé, les dimensions extrudées et d'autres variables. L’utilisateur est responsable de vérifier si les matériaux utilisés conviennent pour l'application spécifique.

Chemical Resistance
  20°C/68°F 60°C/140°F 100°C/212°F
Acetaldehyde R R R
Acetic acid (10%) R R R
Acetic acid (glac./anh.) R R R
Acetic anhydride R R R
Aceto-acetic ester R R R
Acetone R R R
Other ketones R R R
Acetonitrile R R R
Acetylene R R R
Acetyl salicylic acid R R R
Acid fumes R R R
Alcohols R R R
Aliphatic esters R R R
Alkyl chlorides ND ND ND
Alum R R R
Aluminium chloride R R R
Aluminium sulphate R R R
Ammonia, anhydrous R R R
Ammonia, aqueous R R R
Ammonium chloride R R R
Amyl acetate R R R
Aniline R R R
Antimony trichloride ND ND ND
Aqua regia R R R
Aromatic solvents R R R
Ascorbic acid R R R
Beer R R R
Benzaldehyde R R R
Benzene R R R
Benzoic acid R R R
Benzoyl peroxide R R R
Boric acid R R R
Brines, saturated R R R
Bromide (K) solution R R R
Bromine R R R
Bromine liquid, tech. R R R
Bromine water, saturated aqueous R R R
Butyl acetate R R R
Calcium chloride R R R
Carbon disulphide R R R
Carbonic acid R R R
Carbon tetrachloride R R R
Caustic soda & potash R R R
Cellulose paint R R R
Chlorates of Na, K, Ba R R R
Chlorine, dry R R R
Chlorine, wet R R R
Chlorides of Na, K, Ba R R R
Chloroacetic acid R R R
Chlorobenzene R R R
Chloroform R R R
Chlorosulphonic acid R R R
Chromic acid (80%) R R R
Citric acid R R R
Copper salts (most) R R R
Cresylic acids (50%) R R R
Cyclohexane R R R
Detergents, synthetic R R R
Emulsifiers, concentrated R R R
Ether R R R
Fatty acids (>C6) R R R
Ferric chloride R R R
Ferrous sulphate R R R
Fluorinated refrigerants R R R
Fluorine, dry R R NR
Fluorine, wet ND ND ND
Fluorosilic acid ND ND ND
Formaldehyde (40%) R R R
Formic acid R R R
Fruit juices R R R
Gelatine R R R
Glycerine R R R
Glycols R R R
Glycol, ethylene R R R
Glycolic acid R R R
Hexamethylene diamine R R R
Hexamine R R R
Hydrazine R R R
Hydrobromic acid (50%) R R R
Hydrochloric acid (10%) R R R
Hydrochloric acid (conc.) R R R
Hydrocyanic acid R R R
Hydrofluoric acid (40%) R R R
Hydrofluoric acid (75%) R R R
Hydrogen peroxide (30%) R R R
Hydrogen peroxide (30 - 90%) R R R
Hydrogen sulphide R R R
Hypochlorites R R R
Hypochlorites (Na 12-14%) R R R
Iso-butyl-acetate R R R
Lactic acid (90%) R R R
Lead acetate R R R
Lead perchlorate ND ND ND
Lime (CaO) R R R
Maleic acid R R R
Manganate, potassium (K) R R R
Meat juices R R R
Mercuric chloride R R R
Mercury R R R
Methanol R R R
Methylene chloride R R R
Milk products R R R
Moist air R R R
Molasses R R R
Monoethanolamine R R NR
Naptha R R R
Napthalene R R R
Nickel salts R R R
Nitrates of Na, K and NH3 R R R
Nitric acid (<25%) R R R
Nitric acid (50%) R R R
Nitric acid (90%) R R R
Nitric acid (fuming) R R R
Nitrite (Na) R R R
Nitrobenzene R R R
Oils, diesel R R R
Oils, essential R R R
Oils, lubricating + aromatic additives R R R
Oils, mineral R R R
Oils, vegetable and animal R R R
Oxalic acid R R R
Ozone R R R
Paraffin wax R R R
Perchloric acid R R R
Petroleum spirits R R ND
Phenol R R R
Phosphoric acid (20%) R R R
Phosphoric acid (50%) R R R
Phosphoric acid (95%) R R R
Phosphorous chlorides R R R
Phosphorous pentoxide ND ND ND
Phthalic acid R R R
Picric acid R R R
Pyridine R R R
Salicyl aldehyde R R R
Sea water R R R
Silicic acid R R R
Silicone fluids R R R
Silver nitrate R R R
Sodium carbonate R R R
Sodium peroxide R R R
Sodium silicate R R R
Sodium sulphide R R R
Stannic chloride R R R
Starch R R R
Sugar, syrups & jams R R R
Sulphamic acid ND ND ND
Sulphates (Na, K, Mg, Ca) R R R
Sulphites R R R
Sulphonic acids R R R
Sulphur R R R
Sulphur dioxide, dry R R R
Sulphur dioxide, wet R R R
Sulphur dioxide (96%) R R R
Sulphur trioxide R R R
Sulphuric acid (<50%) R R R
Sulphuric acid (70%) R R R
Sulphuric acid (95%) R R R
Sulphuric acid, fuming R R R
Sulphur chlorides R R R
Tallow R R R
Tannic acid (10%) R R R
Tartaric acid R R R
Trichlorethylene R R R
Urea (30%) R R R
Vinegar R R R
Water, distilled. R R R
Water, soft R R R
Water, hard R R R
Wetting agents (<5%) R R R
Yeast R R R
Zinc chloride R R R

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