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Novel porous composite silicate thermal insulation material and preparation method thereof

A technology of composite silicate and thermal insulation materials, applied in ceramic products, other household appliances, applications, etc., can solve the problems of easy-to-break fiber dust, small diameter of ceramic fibers, and failure to meet application requirements, etc., to achieve enhanced thermal radiation resistance Excellent performance, good thermal stability and convenient construction

Inactive Publication Date: 2020-10-23
山东民烨耐火纤维有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional ceramic fibers have fatal flaws in the process of manufacturing or being used as raw materials for other thermal insulation materials: the diameter of ceramic fibers is small, most of them are less than 6 μm, their performance is brittle, and they are easy to break to generate fiber dust, which is very easy to Affects health if inhaled
Existing composite silicate insulation materials can not meet the application requirements in many fields, and it is urgent to develop a new composite silicate insulation material

Method used

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  • Novel porous composite silicate thermal insulation material and preparation method thereof
  • Novel porous composite silicate thermal insulation material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First, add 0.2 parts of polyacrylamide to 3.8 parts of water to prepare a 5% polyacrylamide solution, add 5 parts of soluble fiber to disperse evenly, and then mix 30 parts of vitrified microbeads, 8 parts of silica sol, and 2 parts of butene Diisooctyl sulfonate, 10 parts of sepiolite wool, 2 parts of calcium sulfate whiskers, 1.8 parts of nano-silicon dioxide, 2 parts of anti-heat radiation nano-ceramic powder and 36.2 parts of water are added to the above solution and mixed and stirred evenly to prepare A new type of porous composite silicate insulation material.

[0029] Among them, the density of soluble fiber is 50kg / m 3 , the average fiber diameter is 1-5μm, the fiber length is 10-150mm; the density of vitrified microbeads is 80kg / m 3 , the particle size is 18-50 mesh; the specification of sepiolite wool is 200 mesh.

Embodiment 2

[0031] First, 0.5 parts of polyacrylamide and 0.5 parts of polyvinyl alcohol were added to 9 parts of water to prepare a 10% mixed solution, and 12 parts of soluble fiber were added to disperse evenly, and then 20 parts of vitrified microbeads, 7 parts of silica sol, and 8 parts of Water glass, 3 parts of dioctyl maleate sulfonate, 2 parts of dioctyl sulfosuccinate sodium salt, 7 parts of sepiolite wool, 1.5 parts of calcium sulfate whiskers, 2.5 parts of nano-silica 1 part of anti-heat radiation nano-ceramic powder and 26 parts of water are added into the soluble fiber solution, mixed and stirred uniformly to prepare a new type of porous composite silicate thermal insulation material.

[0032] Among them, the density of soluble fiber is 70kg / m 3 , the average fiber diameter is 1-5μm, the fiber length is 10-150mm; the density of vitrified microbeads is 70kg / m 3 , the particle size is 30-50 mesh; the specification of sepiolite wool is 200 mesh.

Embodiment 3

[0034] First, add 0.5 parts of polyvinyl alcohol to 24.5 parts of water to prepare a 2% mixed solution, add 10 parts of soluble fiber to disperse evenly. Then 5 parts of vitrified microbeads, 5 parts of silica sol, 3 parts of diisooctyl maleate sulfonate, 12 parts of sepiolite wool, 1 part of calcium sulfate whiskers, 0.5 parts of nano silicon dioxide, 3 parts of anti-heat radiation nano-ceramic powder and 35.5 parts of water were added to the soluble fiber solution, mixed and stirred uniformly to prepare a new porous composite silicate thermal insulation material.

[0035] Among them, the density of soluble fiber is 100kg / m 3, the average fiber diameter is 1-5μm, the fiber length is 10-150mm; the density of vitrified microbeads is 80kg / m 3 , the particle size is 18-30 mesh; the specification of sepiolite wool is 100 mesh.

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Abstract

The invention discloses a novel porous composite silicate thermal insulation material and a preparation method thereof, and belongs to the technical field of inorganic thermal insulation materials. The material disclosed by the invention is prepared by compounding main materials including soluble fibers and vitrified microbeads with a dispersing agent, an adhesive, a penetrating agent, sepiolite fabric, calcium sulfate whiskers, silicon dioxide and an anti-thermal radiation material. The soluble fibers are used to replace the traditional ceramic fibers, and the soluble fibers have sufficient solubility in the human body fluid, such that the residence time in the human body is shortened, and the damage of the traditional ceramic fibers to the human body is reduced to the minimum. Asbestos is not contained, so that the environment is not polluted. The thermal insulation material prepared by the invention is suitable for thermal equipment of departments such as electric power, petroleum,chemical industry, light industry and national defense industry, transportation, metallurgy and the like, cold (heat) preservation engineering of the inner wall of a chimney and a kiln shell, heat preservation and insulation of pipelines and the like, and has the advantages of environmental friendliness, no toxicity, low heat conductivity coefficient, high temperature resistance, good thermal stability, good mechanical property, convenience in construction and the like.

Description

technical field [0001] The invention belongs to the field of composite silicate thermal insulation materials, and in particular relates to a novel porous composite silicate thermal insulation material and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, various buildings have made great achievements, but they have also produced huge energy consumption. In energy consumption, the largest proportion is heat loss. In order to solve this problem, thermal insulation materials have been developed rapidly, and are in increasing demand in industries such as electric power, petroleum, chemical industry, light industry and national defense industry, transportation, and metallurgy. Thermal insulation materials are generally divided into organic thermal insulation materials and inorganic thermal insulation materials. Although organic thermal insulation materials such as polyurethane and polystyrene have low thermal conductiv...

Claims

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Application Information

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IPC IPC(8): C04B38/00C04B28/26C04B111/28C04B111/40
CPCC04B28/26C04B2111/28C04B2111/40C04B2201/20C04B2201/32C04B14/24C04B14/06C04B14/40C04B14/383C04B24/16C04B18/023C04B2103/408C04B14/4618C04B14/4625C04B38/0067
Inventor 李森蔡铭放刘勇王进
Owner 山东民烨耐火纤维有限公司
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