A kind of activated carbon air filter element and preparation method thereof
An air filter element and activated carbon technology, which is applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve problems such as single function, and achieve the effects of high purification efficiency, small pressure loss and long service life.
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[0013] An activated carbon air filter element is made of the following raw materials in parts by weight (kg):
[0014] Activated carbon powder 14, microporous polyethylene powder 45, silver nitrate 1, sodium chloride 4, silane coupling agent KH550 3, zirconium fluoride 1, graphite 4, silicon carbide 2, attapulgite 4, urea 3, azodicarbonate Formamide 1, modified attapulgite 12, polyvinyl alcohol 4, appropriate amount of water;
[0015] Described modified attapulgite is made by following method:
[0016] Calcinate attapulgite at 450-500°C for 3-4 hours, take it out, cool it, soak it in 10-12% hydrochloric acid solution for 1-2 hours, take it out, wash it with pure water, dry it and grind it into powder; Add aluminum nitride equivalent to 40% of the weight of attapulgite, 23% of Gynostemma powder, 3% of aluminum hydroxide, 3% of zirconium fluoride, 3% of graphite, 4% of sodium bicarbonate, mix and stir for 30- After 40 minutes, spray silane coupling agent KH550 equi...
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