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High-strength light slurry and preparation method thereof

A slurry and lightweight technology, which is applied in the field of high-strength lightweight slurry and its preparation, can solve the problems of heat insulation function decline, existing structure, cracking, etc., and achieve the effects of stable texture, reduced dust pollution, and high strength

Active Publication Date: 2019-12-27
河北深科建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in terms of building energy-saving external wall insulation projects, board products such as EPS and XPS are mostly used in the cold northern regions of my country, and polymer mortar insulation products such as rubber powder polystyrene particles, expanded perlite and vitrified beads are mostly used in other places. However, in the implementation projects using the above-mentioned board and pulp products, various degrees of cracking, hollowing, deformation, etc. were found within 1 to 5 years, not only the heat insulation function declined, but also there were structural hidden dangers

Method used

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  • High-strength light slurry and preparation method thereof
  • High-strength light slurry and preparation method thereof
  • High-strength light slurry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] The present embodiment provides a kind of high-strength lightweight slurry, which comprises:

[0097] dispersion medium;

[0098] A hydraulic component, based on the dry weight of the hydraulic component, which includes 90 wt% of powder containing silica components, 5.0 wt% of fine aggregate, 3.5 wt% of reinforcing fibers and 1.5 wt% of vulcanized Copper-doped lanthanum hexaboride powder; and

[0099] The first dispersant of the first amount is 1-heptanol and 1-octanol mixed alcohol with a mass ratio of 1:1;

[0100] A second amount of a second dispersant, which is a linear polycarboxylate anionic dispersant, comprising a first repeating unit A, such as formula (a5) and a second repeating unit B, such as formula (b5);

[0101] Wherein the first repeating unit A and the second repeating unit B present a first molar ratio of 1:2;

[0102] Wherein the first amount and the second amount present a first weight ratio of 1:5;

[0103] Wherein the weight average molecular w...

Embodiment 2

[0122] This example provides the preparation method of the high-strength lightweight slurry described in Example 1, including mixing the dispersion medium, the hydraulic component, the first amount of the first dispersant and the second amount of the second dispersant to prepare a high-strength lightweight slurry slurry.

experiment example 1

[0154] Immerse the glass slide in the slurry composition described in Example 1 for 15 minutes each time, pull the slide 5 times at intervals of 6 hours, let it dry naturally, then place it in a vacuum drying oven, and dry it at 50° C. for 12 hours. The thickness of the film was measured to be 0.25mm with a three-ring / QFC-25mm screw micrometer (accuracy 0.001mm) from Wuxi Kaibaoding Tools Co., Ltd. The optical properties of the films were analyzed with a UV-3600 UV-visible-near-infrared spectrophotometer (UV-vis-NIR) from Japan Shimadzu Company. Figure 4 shown. Depend on Figure 4 It can be seen that the high-strength lightweight slurry composition in the preferred embodiment 1 of the present invention has a good blocking effect on near-infrared light with a wavelength between 650 and 1400 nm, which helps to improve its thermal insulation effect .

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Abstract

The invention relates to the technical field of high-strength light slurry, in particular to high-strength light slurry and a preparation method thereof. The high-strength light slurry includes a dispersion medium; a hydraulicity component including, based on the dry weight, a powder containing a silica component, a fine aggregate, a reinforcing fiber, and lanthanum hexaboride powder doped with copper chloride; and a first amount of a first dispersant that is a C4 to C20 fatty alcohol; a second amount of a second dispersant that is a linear polycarboxylate anionic dispersant; wherein the firstamount and the second amount have a first weight ratio of 1:1-100. The composite dispersing agent is used for fully dispersing the slurry, so that the air carrying capacity is low, the dispersing effect and the uniformity degree are excellent; according to the invention, the slurry is good in suspension property, high in fluidity, free of layering, water seepage and segregation, stable in pressure during pouring or smearing, high in strength after forming, capable of achieving the equivalent near-infrared light blocking and shielding effect with only a small amount of the composite dispersingagent, and good in heat insulation and heat preservation.

Description

technical field [0001] The invention relates to the technical field of high-strength lightweight pulp, in particular to a high-strength lightweight pulp and a preparation method thereof. Background technique [0002] Building thermal insulation is an important aspect of saving energy and improving the living and use functions of buildings. Building energy consumption generally accounts for 30-40% of the total energy consumption of human beings, and most of them are heating and air-conditioning energy consumption, so building energy conservation is of great significance. In recent years, with the development of the economy, my country has gradually increased its emphasis on the field of building energy conservation. In order to achieve building energy saving and consumption reduction, the strategy currently adopted in my country is mainly to treat the building maintenance structure to reduce the heat transfer coefficient of the wall and roof. The specific way is to increase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B111/40
CPCC04B28/02C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B14/06C04B14/185C04B22/002C04B14/44C04B22/0013C04B24/026C04B24/24
Inventor 张英魁赵会朝赵佳杰王磊
Owner 河北深科建筑材料有限公司