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Method for preparing novel thermal insulation material

A thermal insulation material and a new type of technology are applied in the field of preparation of new thermal insulation materials, which can solve the problems of restricting the wide application of nanoporous thermal insulation materials, complicated preparation process and high cost, and achieve the effects of enhanced temperature adsorption effect, high performance and low cost.

Inactive Publication Date: 2018-08-14
合肥永泰新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although nanoporous thermal insulation materials have excellent thermal insulation performance, the preparation process is complicated, energy consumption is large, output is small, and cost is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A method for preparing a novel heat insulating material, comprising the following steps:

[0025] a. Mix the modified montmorillonite, inorganic fiber, silica and portland cement, introduce into the high mixer, stir and disperse for 40min at the speed of 800r / min, and obtain the base material;

[0026] b. Add nano-dispersion liquid to the base material, heat at 120°C and stir for 30 minutes, then add absolute ethanol, cool to 65°C, heat and stir for 10 minutes to obtain material 1;

[0027] c. Add silicon nitride powder, sodium dodecylbenzenesulfonate and activated carbon emulsion to material 1, stir at a speed of 300r / min for 20min, then add binder and opacifier, and stir to obtain a slurry;

[0028] d. Introduce the slurry into the mold, then place it in a vacuum drying oven, dry it at 80°C and a pressure of 3MPa for 2 hours, and then take it out for curing treatment to obtain the finished product.

[0029] The preparation method of the modified montmorillonite in st...

Embodiment 2

[0037] A method for preparing a novel heat insulating material, comprising the following steps:

[0038] a. Mix the modified montmorillonite, inorganic fiber, silica and portland cement, introduce into the high mixer, stir and disperse for 30min at the speed of 800r / min, and obtain the base material;

[0039] b. Add nano-dispersion liquid to the base material, heat at 90°C and stir for 30 minutes, then add absolute ethanol, cool down to 55°C, heat and stir for 10 minutes to obtain material 1;

[0040] c. Add silicon nitride powder, sodium dodecylbenzenesulfonate and activated carbon emulsion to material 1, stir at a speed of 200r / min for 20min, then add binder and opacifier, and stir to obtain a slurry;

[0041] d. Introduce the slurry into the mold, then place it in a vacuum drying oven, dry it at 70°C and a pressure of 3MPa for 2 hours, and then take it out for curing treatment to obtain the finished product.

[0042] The preparation method of the modified montmorillonite i...

Embodiment 3

[0050] A method for preparing a novel heat insulating material, comprising the following steps:

[0051] a. Mix the modified montmorillonite, inorganic fiber, silica and portland cement, introduce into the high mixer, and stir and disperse for 40min at the speed of 1000r / min to obtain the base material;

[0052] b. Add nano-dispersion liquid to the base material, heat at 120°C and stir for 45 minutes, then add absolute ethanol, cool down to 65°C, heat and stir for 15 minutes to obtain material 1;

[0053]c. Add silicon nitride powder, sodium dodecylbenzenesulfonate and activated carbon emulsion to material 1, stir for 30 minutes at a speed of 300r / min, then add binder and opacifier, and stir to obtain a slurry;

[0054] d. Introduce the slurry into the mold, then place it in a vacuum drying oven, dry it at 80°C and a pressure of 5MPa for 4 hours, and then take it out for curing treatment to obtain the finished product.

[0055] The preparation method of the modified montmoril...

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PUM

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Abstract

The invention provides a method for preparing a novel thermal insulation material. The method comprises the following steps: a, mixing and dispersing modified Monte clay, an inorganic fiber, silica and portland cement to obtain a base material; b, adding a nanometer dispersing liquid and anhydrous ethanol into the base material, heating and stirring to obtain a material 1; c, adding silicon nitride powder, sodium dodecylbenzene sulfonate and an activated carbon emulsion into the material 1 and stirring, adding a binder and a sunscreen, and stirring to obtain a slurry; d, introducing the slurryinto a mold, drying in a vacuum drying oven, and taking out for curing treatment. The thermal insulation material prepared by the invention has low thermal conductivity, the preparation method is simple and feasible, and the construction feasibility is high.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials, and in particular relates to a preparation method of a novel thermal insulation material. Background technique [0002] Thermal insulation material refers to the material that can block the transfer of heat flow, also known as thermal insulation material. Commonly used thermal insulation materials such as asbestos, glass wool, rock wool, aluminum silicate fiber, microporous calcium silicate, foam glass, expanded perlite and other materials have low thermal conductivity at room temperature, but with the increase of temperature , its thermal conductivity will also increase rapidly, especially in the high temperature region. They are used in building envelopes or thermal equipment, materials or material composites that resist heat flow transfer, including thermal insulation materials and cold insulation materials. On the one hand, thermal insulation materials meet the thermal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/06C04B14/02
CPCC04B28/04C04B14/022C04B14/062C04B2201/20C04B2201/32C04B2201/50C04B14/104C04B14/42C04B14/4631C04B14/4643C04B2103/408C04B2103/0068C04B24/02C04B14/328C04B24/20C04B20/0048C04B24/281C04B24/2641C04B24/2623C04B14/305C04B14/308C04B14/306C04B14/324
Inventor 伍志远
Owner 合肥永泰新型建材有限公司
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