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Preparation method for environment-friendly building material

A kind of building material and environmental protection technology, which is applied in the field of preparation of environmental protection building materials, can solve the problems of poor thermal insulation performance, etc., and achieve the effects of good sound insulation effect, increased strength and good strength

Inactive Publication Date: 2018-06-29
HEFEI YAKELI NEW BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wall insulation materials are mainly polystyrene and polyurethane foam materials. The thermal conductivity of this material reaches 0.04w / m·k, and the thermal insulation performance is poor, especially in terms of fire resistance. Polystyrene It is a material that is flammable and emits a large amount of toxic gas after burning. In recent years, it has caused many vicious fires. Therefore, this material is hardly used in building energy conservation and heat preservation in developed countries such as Europe and the United States.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of an environmentally friendly building material, comprising the following preparation steps:

[0025] a. Mix modified bentonite, phase-change aggregate, cryolite powder, organic fiber and expanded vitrified microbeads into a grinder, and ball mill for 3 hours to obtain powder;

[0026] b. Add the powder into the modified acrylic emulsion, stir at 70°C for 20 minutes, then raise the temperature to 80°C and stir for 15 minutes. During the stirring process, add the polyurethane composite emulsion dropwise until the stirring is completed to obtain a mixed solution;

[0027] c. Add compound additives dropwise to the mixed liquid while stirring, until the compound additives are added, then add anionic surfactant, compound sulfate and retarder, heat at 60°C and stir for 1 hour to obtain a mixture;

[0028] d. Put the mixture into the mold, carry out dehydration and pressure molding at 100°C, and after cooling to normal temperature, the finished product ca...

Embodiment 2

[0037] A preparation method of an environmentally friendly building material, comprising the following preparation steps:

[0038] a. Mix modified bentonite, phase change aggregate, cryolite powder, organic fiber and expanded vitrified microbeads into a grinder, and ball mill for 2 hours to obtain powder;

[0039] b. Add the powder into the modified acrylic emulsion, stir at 60°C for 10 minutes, then raise the temperature to 80°C and stir for 15 minutes. During the stirring process, add the polyurethane composite emulsion dropwise until the stirring is completed to obtain a mixed solution;

[0040] c. Add compound additives dropwise to the mixed liquid while stirring, until the compound additives are added, then add anionic surfactant, compound sulfate and retarder, heat at 60°C and stir for 1 hour to obtain a mixture;

[0041] d. Put the mixture into the mold, carry out dehydration and pressure molding at 90°C, and after cooling to normal temperature, the finished product can...

Embodiment 3

[0050] A preparation method of an environmentally friendly building material, comprising the following preparation steps:

[0051] a. Mix modified bentonite, phase-change aggregate, cryolite powder, organic fiber and expanded vitrified microbeads into a grinder, and ball mill for 3 hours to obtain powder;

[0052] b. Add the powder into the modified acrylic emulsion, stir at 70°C for 20 minutes, then raise the temperature to 80°C and stir for 20 minutes. During the stirring process, add the polyurethane composite emulsion dropwise until the stirring is completed to obtain a mixed solution;

[0053] c. Add compound additives dropwise to the mixed liquid while stirring, until the compound additives are added, then add anionic surfactant, compound sulfate and retarder, heat at 80°C and stir for 2 hours to obtain a mixture;

[0054] d. Put the mixture into the mold, carry out dehydration and pressure molding at 100°C, and after cooling to normal temperature, the finished product c...

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PUM

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Abstract

The invention provides a preparation method for an environment-friendly building material. The preparation method comprises the following steps: a, mixing and ball-milling modified bentonite, phase-change aggregates, cryolite powder, organic fibers and expanded glass beads to obtain powder; b, adding the powder into modified acrylic acid emulsion to stir, performing heating reaction, and adding polyurethane composite emulsion to obtain a mixed solution; c, dropwise adding composite auxiliaries, an anionic surfactant, composite sulfate and a retarder into the mixed solution, and heating and stirring to obtain a mixture; and d, leading the mixture into a mould, dehydrating, pressurizing, forming and cooling to normal temperature. The prepared building material is flame-resistance and heat-insulated, is good in strength and is high in cost performance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a preparation method of an environment-friendly building material. Background technique [0002] Green and environmentally friendly building materials, also known as ecological building materials and technical building materials, refer to healthy, environmentally friendly, and safe building materials. They are also called "healthy building materials" or "environmentally friendly building materials" in the world. It is an evaluation of the quality of "health, environmental protection and safety" of building materials. First of all, it has the properties of degaussing, noise reduction, dimming, temperature adjustment, heat insulation, fire prevention, and antistatic, and it is a special new functional building material that regulates human body functions. Green building materials refer to building materials that are non-toxic, non-polluting, non-radioactive,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/16
CPCC04B26/16C04B2111/28C04B2111/52C04B2201/20C04B2201/32C04B2201/50C04B14/104C04B14/36C04B14/24C04B16/02C04B14/024C04B24/04C04B24/2641C04B24/38C04B22/06C04B22/062C04B22/124C04B22/142C04B22/149C04B22/08C04B22/16C04B24/06C04B24/18
Inventor 王磊
Owner HEFEI YAKELI NEW BUILDING MATERIAL CO LTD
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