Modified double-layer filter element as well as preparation method and application thereof

• Main Authors: LIU HONGXING, GUO YAOSHEN, BI CHUNYING, XU XIAOYI, CHEN CHENG
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2024
• Subjects: CHEMISTRY; METALLURGY; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a modified double-layer filter element as well as a preparation method and application thereof. The preparation method comprises the following steps: modifying a filter element base material to obtain a modified double-layer filter element; the filter element base material comprises an outer layer and an inner layer; the material of the outer layer comprises a polyester material; the modification comprises the following steps: codepositing a filter element base material and a polyphenol monomer to obtain a modified filter element I; carrying out chemical reaction on the modified filter element I and amine substances to obtain a modified filter element II; performing chemical coordination on the modified filter element II and an inorganic bacteriostatic agent to obtain a modified filter element III; the inorganic bacteriostatic agent comprises an inorganic bacteriostatic agent containing metal ions; and reacting the modified filter element III with an organic bacteriostatic agent to obt