A kind of high adsorption, high bonding strength roasted diatom mud and its preparation method

A high-adsorption, high-adhesion technology, applied in coatings and other directions, can solve the problems of limited lifting effect and complex methods, and achieve the effect of less useless impurities, simple preparation process and high adsorption.

Active Publication Date: 2019-11-26
吉林远通矿业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, some research results related to diatom ooze have been disclosed, such as "a kind of multi-functional and environment-friendly diatom ooze wall material" (CN102276197A), "a method for increasing the specific surface area of ​​diatomite" (CN101549279A), "a An environmentally friendly diatom mud wall material powder" (CN101700965A), "a modified diatom mud interior decoration material and its production process" (CN103130446A), etc. The focus of these achievements is how to use the advantages of diatomite to develop The new formula of environmentally friendly building decoration materials generally has the problem of complicated methods or limited improvement effects, and has not solved the problem of how to take into account the adsorption and bonding strength of diatom mud at the same time

Method used

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  • A kind of high adsorption, high bonding strength roasted diatom mud and its preparation method
  • A kind of high adsorption, high bonding strength roasted diatom mud and its preparation method

Examples

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Effect test

Embodiment 1

[0023] Such as figure 1 Shown, the preparation method of high adsorption, high strength roasted diatom mud is as follows:

[0024] (1) Take 18g of roasted diatomite and 2g of CaO respectively, stir with a vortex mixer for 30min, and mix evenly to obtain a semi-finished product of diatom mud powder;

[0025] (2) Take 5g Na 2 SO 4 , 2g MgCl 2 and 3g glycerol to make a solution, mix it with the semi-finished diatom mud powder above, and then add it into a 150mL ceramic crucible according to the solid-liquid mass ratio of 1:5, and place it in a high-pressure reactor after fully stirring React at 160°C for 12 hours; no oxygen is emitted during the heating process, ensuring that the reaction process is in an aerobic environment;

[0026] (3) After the reaction is completed, the diatom mud is taken out and cooled to room temperature, and fully dried at 100°C after filtering;

[0027] (4) Mix the dried diatom ooze with 0.4 g of hydroxypropyl methylcellulose evenly, use a powder m...

Embodiment 2

[0029] This example is basically the same as Example 1, except that the amount of calcined diatomaceous earth is 17 g, and the amount of CaO is 3 g.

Embodiment 3

[0031] This example is basically the same as Example 1, except that the amount of calcined diatomaceous earth is 15 g, the amount of CaO is 5 g, the autoclaved reaction temperature is 180° C., and the reaction time remains unchanged.

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Abstract

The invention relates to high-adsorbability and high-bonding-strength roasted diatom mud and a preparation method thereof. The preparation method comprises the steps: with roasted diatom mud and substances capable of supplying an alkali source and a calcium source as the raw materials, uniformly mixing the raw materials with sodium sulfate, magnesium chloride and glycerol, carrying out high-temperature steam pressurization in an aerobic environment, mixing the mixture with hydroxypropyl methyl cellulose, and crushing the mixture into powder. By adding the substances capable of supplying the alkali source and the calcium source, sodium sulfate, magnesium chloride and glycerol into the roasted diatom mud and carrying out aerobic steam pressurization, a zeolite phase can be generated on the surface of a diatomite shell, so that the adsorbability of the roasted diatom mud is improved; and meanwhile, the strength and hydraulicity of a formed material can be enhanced by virtue of a generatedcalcium silicate phase as well as calcium oxide, calcium hydroxide, calcium sulfate and the like which are not completely reacted, so that the defects that the roasted diatom mud is poor in adsorption capacity and low in structural strength after being formed are remedied.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to roasted diatom mud with high adsorption and high bonding strength and a preparation method thereof. Background technique [0002] The main component of diatomaceous earth is silicon dioxide (SiO 2 ), which has the characteristics of looseness, light weight, and porosity, and is a natural nanoporous amorphous silicon material. Due to its developed fine pores, high specific surface area and good chemical stability, diatomite is widely used in filter aids, adsorbents, catalyst supports, functional fillers and other fields. Among them, the production of diatom mud filler is one of the important application methods of diatomite. The material is green and environmentally friendly, can absorb / release moisture with changes in seasons and ambient air humidity, can absorb high frequencies and attenuate low frequencies, is not easy to generate static electricity, and is fire-res...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/65
CPCC09D1/00C09D7/65
Inventor 任子杰张安岭高惠民李志辉卞政
Owner 吉林远通矿业有限公司
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