A PREPARTION METHOD FOR A CERAMIC FILTER HAVING CONTINUAL ANTIBIOTIC PROPERTY

PURPOSE: A preparation method of porous ceramic filter, especially, being applied to a water purifier, having filtering and antibacterial effects at a time is provided which simplifies structure of water purifier and improves antibacterial durability by dispersing Ag into ceramic raw materials. CONS...

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Bibliographic Details
Main Authors OH, JAE CHUN, CHO, YEONG SANG
Format Patent
LanguageEnglish
Korean
Published 17.08.2001
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PURPOSE: A preparation method of porous ceramic filter, especially, being applied to a water purifier, having filtering and antibacterial effects at a time is provided which simplifies structure of water purifier and improves antibacterial durability by dispersing Ag into ceramic raw materials. CONSTITUTION: The method comprises the steps of: (i) mixing 70-99.9wt.% of ceramic materials composed of one or more of clay, kaolin, feldspar and pottery stone with 0.1-30wt.% of silver salt such as silver acetate, silver carbonate and silver oxalate; (ii) mixing 30-95wt.% of the ceramic materials of step (i) with 5-70wt.% of powdered flammable materials such as carbon compound(graphite, carbon black), hydrocarbon compound(melamine, sugar) and mixture thereof; (iii) forming, drying and sintering at 500-1200deg.C for more than 1hrs. Also, the following Ag-coating step can be added: soaking the ceramic filter silver into salt solution containing 1-20wt.% of Ag+ ions; drying and sintering it at 500-1200deg.C for more than 30min. 세라믹 원료에 은을 분산시키는 것으로 이루어진, 항균 지속성을 갖는 다공성 세라믹 여과막의 제조방법을 제공한다.
Bibliography:Application Number: KR20000004627