Preparation method of aluminum phosphate super-hydrophilic film

A kind of aluminum phosphate, super-hydrophilic technology, applied in the direction of energy wastewater treatment, coating, etc., can solve the problems that have not been reported in the research, and achieve the effect of good durability and good transmittance

Active Publication Date: 2021-04-02
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, from the perspective of durability and dependence on light, the construction of inorganic non-photocatalytic hydrophilic membranes has very important application value, but so far no research in this area has been reported.

Method used

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  • Preparation method of aluminum phosphate super-hydrophilic film
  • Preparation method of aluminum phosphate super-hydrophilic film
  • Preparation method of aluminum phosphate super-hydrophilic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The invention provides a kind of preparation method of aluminum phosphate superhydrophilic film, comprises the following steps:

[0030] S1. Configure aluminum phosphate sol, weigh 0.2205g of aluminum lactate and dissolve it in 30ml of water, add 1ml of 0.075mol / L phosphoric acid, 1.57g of citric acid, and 0.465g of polyethylene glycol to obtain aluminum phosphate sol;

[0031] S2, aging the aluminum phosphate sol for 24 hours at room temperature;

[0032] S3, using the aged aluminum phosphate sol to plate an aluminum phosphate precursor film on the surface of the glass substrate;

[0033] S4. Preheating the aluminum phosphate precursor film, the preheating temperature is 100°C, and the preheating time is 30min;

[0034] S5, heat treatment the preheated aluminum phosphate precursor film at a heating temperature of 500° C. for 30 minutes, and naturally cool to room temperature to obtain an aluminum phosphate superhydrophilic film.

[0035] The obtained aluminum phospha...

Embodiment 2

[0037] The invention provides a kind of preparation method of aluminum phosphate superhydrophilic film, comprises the following steps:

[0038] S1. Configure aluminum phosphate sol, weigh 1.532g of aluminum isopropoxide and dissolve it in 30ml of water, add 1ml of 0.075mol / L phosphoric acid, 1.57g of citric acid, and 4.65g of polyethylene glycol to obtain aluminum phosphate sol;

[0039] S2. Aging the aluminum phosphate sol for 6 hours at room temperature;

[0040] S3, using the aged aluminum phosphate sol to plate an aluminum phosphate precursor film on the surface of the glass substrate;

[0041] S4. Perform preheating treatment on the aluminum phosphate precursor film, the preheating temperature is 100°C, and the preheating time is 1h;

[0042] S5. Heat the preheated aluminum phosphate precursor film at a heating temperature of 500° C. for 1 hour, and naturally cool to room temperature to obtain an aluminum phosphate superhydrophilic film.

[0043] The obtained aluminum p...

Embodiment 3

[0045] The invention provides a kind of preparation method of aluminum phosphate superhydrophilic film, comprises the following steps:

[0046] S1. Configure aluminum phosphate sol, weigh 0.0441g of aluminum lactate and dissolve it in 30ml of water, add 0.2ml of 0.075mol / L phosphoric acid, 1.57g of citric acid, and 0.465g of polyethylene glycol to obtain aluminum phosphate sol;

[0047] S2. Aging the aluminum phosphate sol for 0.5h at room temperature;

[0048] S3, drying the aged aluminum phosphate sol to obtain aluminum phosphate gel;

[0049] S4. Preheating the aluminum phosphate gel, the preheating temperature is 90°C, and the preheating time is 5h;

[0050] S5. Heat the preheated aluminum phosphate precursor film at a heating temperature of 500° C. for 1 hour, and naturally cool to room temperature to obtain an aluminum phosphate superhydrophilic film.

[0051] The obtained aluminum phosphate superhydrophilic film was tested for hydrophilicity, and the contact angle was...

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PUM

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Abstract

The invention discloses a preparation method of an aluminum phosphate super-hydrophilic film, which comprises the following steps: S1, preparing aluminum phosphate sol of which the concentration of Alis 0.005-0.5 mol / L; S2, aging the aluminum phosphate sol; S3, plating an aluminum phosphate precursor film on the surface of the substrate by using the aged aluminum phosphate sol; S4, preheating thealuminum phosphate precursor film, wherein the preheating temperature ranges from 90 DEG C to 150 DEG C, and the preheating time ranges from 0.5 h to 5 h; and S5, heating the preheated aluminum phosphate precursor film, wherein the heating temperature ranges from 200 DEG C to 1000 DEG C, the heating time ranges from 0.5 h to 5 h, and obtaining an aluminum phosphate super-hydrophilic film. The inorganic hydrophilic transparent film prepared by the method has good durability and super hydrophilicity, and has good transmittance to visible light.

Description

technical field [0001] The invention relates to the technical field of functional thin films, in particular to a method for preparing an aluminum phosphate superhydrophilic thin film. Background technique [0002] Hydrophilic films have been widely researched and applied in recent years because of their excellent properties such as pollution resistance and anti-fog. At present, the preparation of hydrophilic thin films is mainly divided into two directions, polymer materials with hydrophilic groups and inorganic photocatalytic materials. However, polymer materials have poor durability in harsh outdoor environments. Photocatalytic materials need to be excited to generate oxygen vacancies under certain ultraviolet or visible light. OH produces hydrophilic properties, which are typically TiO 2 Hydrophilic membrane. However, the hydrophilicity of the photocatalytic material becomes weaker when the light is weak or even without light. Therefore, in terms of durability and dep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/25
CPCC03C17/25C03C2218/32Y02W10/37
Inventor 王金磊甘治平鲍田
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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