Photo-degradable formaldehyde membrane based on modified titanium dioxide

A technology of photodegradation and formaldehyde, applied in the direction of film/sheet adhesive, adhesive type, polyurea/polyurethane adhesive, etc., can solve the problems of cumbersome process and low cost, and achieve simple process, Improve product life and save cost

Inactive Publication Date: 2017-07-14
JIANGYIN TONGLI OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the catalytic degradation performance of the prepared membrane needs to be further improved
In addition, this method requires the preparation of photocatalysts or the purchase of photocatalysts, which has the problem of cumbersome process or low cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Preparation of modified titanium dioxide photocatalytic degradation of formaldehyde film

[0038] Prepare the modified titanium dioxide photocatalytic degradation formaldehyde film according to the following method:

[0039] (1) Configure a certain concentration of installation glue;

[0040] (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;

[0041] (3) Preparation of modified TiO 2 Hardening liquid coating, specifically:

[0042]Under nitrogen protection, react fullerene C60, p-carboxybenzaldehyde and sarcosine in toluene at 100-115°C for 8-10 hours, wash the obtained solid with water, and dry to obtain carboxy-functionalized fullerene derivatives;

[0043] Addition of 0.8 parts of nano-TiO to carboxyl-functionalized fullerene derivatives 2 (P25-TiO 2 ), solvent ethyl acetate 15 parts and ultrasonically disperse for 0.8h; then add 10 parts of acrylic resin and ultrasonicall...

Embodiment 2

[0046] Example 2: Preparation of modified titanium dioxide photocatalytic degradation of formaldehyde film

[0047] Compared with Example 1, carboxyl functionalized fullerene derivatives, nano-TiO 2 The mass ratio is 1:50, and other steps or parameters are consistent with embodiment 1.

Embodiment 3

[0048] Example 3: Preparation of modified titanium dioxide photocatalytic degradation of formaldehyde film

[0049] Compared with Example 1, carboxyl functionalized fullerene derivatives, nano-TiO 2 The mass ratio is 1:100, and other steps or parameters are consistent with embodiment 1.

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PUM

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Abstract

The invention discloses a photo-degradable formaldehyde membrane based on modified titanium dioxide, belonging to the technical field of membranes. According to the photo-degradable formaldehyde membrane, when a hardening liquid coating layer is configured, modified titanium dioxide is prepared and is well dispersed into hard coating layers of products of automobile membranes, building membranes and household membranes, so that the process is simplified, the cost is saved, and furthermore, the obtained photo-degradable formaldehyde membrane is capable of degrading formaldehyde without influencing the original properties of the automobile membranes, the building membranes and the household membranes.

Description

technical field [0001] The invention relates to a photodegradable formaldehyde film based on modified titanium dioxide, 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 technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C08J7/04C09J7/02C09J133/04C09J175/04C09J183/04
CPCC08J2333/00C08J2423/06C08J2423/12C08J2427/06C08J2467/02C08J2469/00C08J2475/04C08K3/04C08K3/22C08K9/04C09D133/00C09J133/04C09J175/04C09J183/04C09J2423/046C09J2423/106C09J2427/006C09J2433/00C09J2433/003C09J2467/006C09J2469/006C09J2475/00C09J2475/006C09J2483/00C09D7/61C09J7/22C09J7/241C09J7/245C09J7/25C09J7/255C08J7/0427
Inventor 周永南刘波
Owner JIANGYIN TONGLI OPTOELECTRONICS TECH
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