Formaldehyde film degraded by photocatalytic mechanism

A technology of photocatalysis and photocatalytic materials, which is applied in the field of photocatalytic degradation of formaldehyde film, can solve the problems of short service life and low product efficiency, and achieve the effects of short service life, increased product life and improved catalytic degradation effect

Active Publication Date: 2017-02-15
JIANGYIN TONGLI OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently on the market only TiO 2 Spray, the product efficiency is not high and the service life is very short. After drying, it will be damaged by wind, natural force, human contact, scratches, etc., and disappear from the original load

Method used

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  • Formaldehyde film degraded by photocatalytic mechanism
  • Formaldehyde film degraded by photocatalytic mechanism
  • Formaldehyde film degraded by photocatalytic mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: The structure of photocatalytic degradation formaldehyde film

[0032] The product structure of the present invention is as figure 1 shown.

[0033] The photocatalytic degradation formaldehyde film of the present invention mainly comprises nanometer TiO 2 Hard coating layer, substrate layer, installation adhesive layer, release film layer. The dispersed nano-TiO 2 The hard coating layer is located on the outermost layer of the photocatalytic degradation formaldehyde film, with a thickness of 1-5 μm; the thickness of the installation adhesive layer is 5-15 μm. The installation adhesive layer is mainly used for laminating installation, and the release film is mainly used to protect the installation adhesive.

Embodiment 2

[0034] Embodiment 2: the preparation of photocatalytic degradation formaldehyde film

[0035] Prepare the photocatalytic degradation formaldehyde film according to the following method:

[0036] (1) Configure a certain concentration of installation glue;

[0037] (2) Evenly coat the mounting glue on the surface of one side of the substrate; the thickness of the mounting glue is about 10 μm;

[0038] (3) A certain amount of photocatalytic material TiO 2 Add to base hard coat components, specifically:

[0039] In parts by weight, first add 15 parts of solvent ethyl acetate in the glue barrel; then add 0.8 parts of photocatalytic material nano-TiO 2 Add it into a bucket filled with solvent and stir for 1.5h; then add 10 parts of acrylic resin, and ultrasonically disperse for 0.5h; then add 0.1 part of adhesion promoter, 0.1 part of light stabilizer, 0.1 part of photoinitiator, etc. and fully stir for 1.5h , to obtain a uniformly dispersed hardening solution coating. Nano-TiO...

Embodiment 3

[0052] Embodiment 3: the preparation of photocatalytic degradation formaldehyde film

[0053] Prepare the photocatalytic degradation formaldehyde film according to the following method:

[0054] (1) Configure a certain concentration of installation glue;

[0055] (2) Evenly coat the mounting glue on the surface of one side of the substrate; the thickness of the mounting glue is about 5 μm;

[0056] (3) A certain amount of photocatalytic material TiO 2 The dispersion is added to the base hardcoat composition, specifically:

[0057] In parts by weight, first add 13 parts of solvent ethyl acetate in the glue barrel; then add 0.7 parts of photocatalytic material nano-TiO 2 Add it into a bucket filled with solvent and stir for 1.5h; then add 8 parts of acrylic resin, and ultrasonically disperse for 0.5h; then add 0.08 parts of adhesion promoter, 0.08 parts of light stabilizer, 0.08 parts of photoinitiator, etc. and fully stir for 1.5 hours , to obtain a uniformly dispersed hard...

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Abstract

The invention discloses a formaldehyde film degraded by photocatalytic mechanism. The film belongs to the field of film technology. The film combines the photocatalysis technology with the automobile film, construction film and decoration film; by integrating the nanometer photocatalytic material TiO2 into the automobile film, construction film and decoration film coating layer to ensure the preservation of the original properties of the products, namely the in-alteration of the hardness, anti-scraping performance and light permeability of the original film, and at the same time enhances the function of formaldehyde degradation. Compared with the short lived photocatalyst spraying agent the film enjoys a service life as long as over 2 years, thereby prolonging the use period of the product.

Description

technical field [0001] The invention relates to a photocatalytic degradation formaldehyde film, which belongs to the field of film technology. Background technique [0002] Indoor formaldehyde pollution poses a great threat to human life, including in the living space of buildings and in confined spaces such as cars. Indoor formaldehyde mainly comes from interior decorations and some leather products, as well as various illegal materials that do not meet the national production standards. my country stipulates that indoor formaldehyde content should not exceed 0.08mg / m 3 High concentrations of formaldehyde can cause eye and throat discomfort, chest tightness, asthma, dermatitis, etc., and there is a terrible risk of cancer. [0003] At present, there are many ways to control formaldehyde pollution on the market, such as microbial degradation, plant purification, chemical reaction methods, physical adsorption technology, nano-photocatalysis technology, etc. However, the mi...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/88B01D53/72B01J21/06
CPCB01D53/228B01D53/8668B01D53/88B01J21/063B01D2255/20707B01D2255/802B01J35/59B01J35/39
Inventor 周永南刘波
Owner JIANGYIN TONGLI OPTOELECTRONICS TECH
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