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Improved sewage treatment PVDF thin film

An improved technology for sewage treatment, applied in osmosis/dialysis water/sewage treatment, membrane technology, semi-permeable membrane separation, etc., can solve the problems of ineffective anti-pollution performance and insufficient hydrophilic effect of sewage treatment , to achieve the effects of saving materials, enhancing pollution resistance, and increasing penetration

Inactive Publication Date: 2015-07-08
CHANGZHOU HUITIAN NEW MATERIALS
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002] The existing sewage treatment thin hydrophilic effect is not strong enough, resulting in the anti-pollution effect of the membrane is not obvious

Method used

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  • Improved sewage treatment PVDF thin film
  • Improved sewage treatment PVDF thin film

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Embodiment Construction

[0010] Such as figure 1 , figure 2 It is a structural schematic diagram of the present invention, an improved PVDF film for sewage treatment, including five layers, from top to bottom respectively upper PVDF film layer 1, Al 2 o 3 Nanoparticle layer 2, intermediate layer 3, TiO 2 The nano particle layer 4 and the lower PVDF film layer 5, the middle layer 3 is a honeycomb structure 6.

[0011] al 2 o 3 and TiO 2 The surface of the two kinds of nanoparticles is rich in hydroxyl groups and has a certain degree of hydrophilicity. When solidified, some holes will be formed at the interface. The existence of these holes also increases the connectivity between the membrane pores, so it can improve the permeability of the membrane. Hydrophilic. The honeycomb paper structure can not only save materials, but also play a role in heat insulation. Make the film last longer.

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Abstract

The invention relates to the technical field of thin films and in particular relates to an improved sewage treatment PVDF thin film. The improved sewage treatment PVDF thin film comprises five layers, namely an upper PVDF thin film layer, an Al2O3 nanoparticle layer, a middle layer, a TiO2 nanoparticle layer and a lower PVDF thin film layer from top to bottom; the middle layer is of a cellular structure. The surfaces of the Al2O3 and TiO2 nanoparticle layers of the thin film contain rich hydroxyls, so that the connectivity of film pores can be enhanced for hydrophilic curing to a certain extent; as a result, the pollution resistance of the film can be enhanced; due to the adopted cellular paper structure, the material can be saved and the thermal insulating effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of membranes, in particular to an improved sewage treatment PVDF membrane. Background technique [0002] The existing sewage treatment thin hydrophilic effect is not strong enough, resulting in the anti-pollution effect of the membrane is not obvious. Contents of the invention [0003] In order to overcome the existing existing deficiencies, the invention provides an improved sewage treatment PVDF membrane. [0004] The technical solution adopted by the present invention to solve the technical problems is: an improved PVDF film for sewage treatment, including five layers, from top to bottom are the upper PVDF film layer, Al 2 o 3 Nanoparticle layer, intermediate layer, TiO 2 The nano particle layer and the lower PVDF film layer, the middle layer has a honeycomb structure. [0005] The beneficial effect of the present invention is that the Al of the film 2 o 3 and TiO 2 The surface of the nanoparticl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/34B01D69/02C02F1/44
Inventor 石娜朱圣才
Owner CHANGZHOU HUITIAN NEW MATERIALS
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