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Efficient long-lasting formaldehyde removal diatom ooze and preparation method thereof

A formaldehyde diatom mud, durable technology, applied in the field of building decoration materials, can solve problems such as difficulty in meeting urgent needs, weak ability to decompose harmful substances, achieve uniform, efficient and thorough decomposition, good uniform coating, increase contact area and contact effect of time

Inactive Publication Date: 2019-12-20
SHENZHEN CITY THROUGH SCI & TECH OF NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In traditional technology, most diatom mud wall materials use nano-titanium dioxide as a photocatalyst to catalyze and decompose harmful substances adsorbed under light conditions. Most of these diatom mud wall materials can only achieve adsorption of harmful substances. The ability to decompose harmful substances is weak, and air purification needs to be performed under sufficient light, which is difficult to meet people's urgent needs for efficient and long-lasting adsorption and decomposition of formaldehyde and other harmful substances

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: A kind of preparation method of efficient and durable formaldehyde-removing diatom ooze, is characterized in that, comprises the following steps:

[0029] S01, prepare the potassium permanganate solution that mass fraction is 1%, add acid to adjust and make the pH value of potassium permanganate solution be 2, then the particle size is 625 order diatomite is added to high manganese by the ratio of solid content 40wt% Potassium acid potassium solution, stirring evenly to obtain diatomite slurry;

[0030] S02, adding manganese acetate in diatomite slurry in proportion, the mol ratio of manganese acetate and potassium permanganate is 1.5:1;

[0031] S03, after adding manganese acetate, heat and ultrasonically stir for 5 hours, remove water and dry to obtain manganese-based modified diatomite containing 10% manganese oxide;

[0032] S04, by weight percentage, 40 parts of manganese-based modified diatomite, 25 parts of calcium oxide with a particle size of 125...

Embodiment 2

[0033] Embodiment 2: A kind of preparation method of efficient and durable formaldehyde-removing diatom mud, is characterized in that, comprises the following steps:

[0034] S01, prepare the potassium permanganate solution that mass fraction is 2%, add acid to adjust and make the pH value of potassium permanganate solution be 1.5, then the particle size is 2000 order diatomite is added to permanganese by the ratio of solid content 30wt% Potassium acid potassium solution, stirring evenly to obtain diatomite slurry;

[0035] S02, adding manganese sulfate in diatomite slurry in proportion, the mol ratio of manganese acetate and potassium permanganate is 1.3:1;

[0036] S03, after adding manganese sulfate, heat and ultrasonically stir for 8 hours, dewater and dry to obtain manganese-based modified diatomite containing 15% manganese oxide;

[0037] S04, 35 parts by weight of manganese-based modified diatomite, 35 parts of calcium silicate with a particle size of 625 mesh, 20 part...

Embodiment 3

[0038] Embodiment 3: A kind of preparation method of efficient and durable formaldehyde-removing diatom ooze, is characterized in that, comprises the following steps:

[0039] S01, prepare the potassium permanganate solution that mass fraction is 0.5%, add acid to adjust and make the pH value of potassium permanganate solution be 2.5, then be that 800 order diatomites are added to high manganese by the ratio of solid content 25wt% with particle size Potassium acid potassium solution, stirring evenly to obtain diatomite slurry;

[0040] S02, adding manganese chloride in diatomite slurry in proportion, the mol ratio of manganese acetate and potassium permanganate is 1.6:1;

[0041] S03, after adding manganese chloride, heat and ultrasonically stir for 3 hours, remove water and dry to obtain manganese-based modified diatomite containing 8% manganese oxide;

[0042] S04, by weight percentage, 50 parts of manganese-based modified diatomite, 20 parts of ash calcium with a particle ...

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Abstract

The invention discloses efficient long-lasting formaldehyde removal diatom ooze and a preparation method thereof. The diatom ooze disclosed by the invention has the advantages of being high in security, excellent in formaldehyde removal effect, small in environment condition dependency and stable and lasting in formaldehyde removal performance. The preparation method of the efficient long-lastingformaldehyde removal diatom ooze, which is disclosed by the invention, comprises steps that kieselguhr modification is firstly performed, manganese oxide is uniformly supported by the surface of the kieselguhr in situ, and then rich efficient lasting formaldehyde removal reaction sites are provided for the diatom ooze; and secondly, a calcium material, a mineral fiber, a thickening agent and the like are added to further improve the strength, viscosity and protection performance of the diatom ooze. The preparation method is simple and environment-friendly and applicable to large-scale use andindustrial production.

Description

technical field [0001] The invention relates to the field of building decoration materials, in particular to a high-efficiency and long-lasting formaldehyde-removing diatom mud and a preparation method thereof. Background technique [0002] With the development of society and the improvement of economic level, people pay more attention to their own health, and put forward higher requirements for building decoration materials. At present, in building decoration, formaldehyde is one of the main chronic diseases that plague people's health, seriously endangering the health of newly renovated families, especially children, pregnant women and the elderly. [0003] Diatom mud is a new type of wall material with diatomite as the main raw material. It is a water-soluble powdery decorative coating. Algae earth has physical properties such as fineness, looseness, light weight, porosity, water absorption and strong permeability. It can not only effectively absorb free formaldehyde, be...

Claims

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Application Information

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IPC IPC(8): C04B26/02
CPCC04B26/02C04B2111/00017C04B2111/00482C04B14/08C04B14/30C04B22/064C04B14/4656C04B24/383C04B14/043C04B14/465C04B24/2623C04B14/46
Inventor 魏春光王静霞谷星星梁燕洪碧玙
Owner SHENZHEN CITY THROUGH SCI & TECH OF NEW ENERGY CO LTD
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