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Preparation method and application of thermal-insulation building material

A technology for building materials and heat preservation, applied in the field of preparation of heat preservation building materials, can solve the problems of easy cracks, low tensile strength, poor heat preservation performance in engineering, and achieve good application prospects, improved use performance, and good heat preservation effects.

Inactive Publication Date: 2018-05-11
付主枝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are the following main disadvantages at the same time: poor thermal insulation performance, large footprint; poor impact resistance and compressive strength; high hygroscopicity, poor environmental performance, and harmful to human body during construction and application
Polystyrene foam insulation material is a kind of thermoplastic material, which has better performance than inorganic insulation materials, but some of its shortcomings are gradually exposed in the process of use: polystyrene insulation material has a cavity structure, and the outside air can easily pass through the gaps in the air. The cavity flow affects the thermal insulation effect; the wind resistance is poor: the tensile strength of EPS is only 0.1Mpa in dry conditions, and the tensile strength after soaking in water is lower, so EPS is generally not used in high-rise buildings; polystyrene insulation materials require storage It can be used for construction after 40 days, which is difficult to achieve in practice, so the project using EPS insulation is prone to cracks, wall moisture permeability and water return
However, composite materials are still in the research and development stage, and there is no marketization
In addition, new thermal insulation materials are being developed such as thermal insulation coatings, radiation protection coatings, etc. These materials have a certain thermal insulation effect, and some progress has been made in application, but there are limitations in their performance and application: first, the cost Second, the coating ages quickly and has a limited service life

Method used

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  • Preparation method and application of thermal-insulation building material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) 50 parts of bentonite, 25 parts of calcium sulfate, and 10 parts of blast furnace slag are added into a grinder for grinding, the speed of the grinder is controlled at 1800r / min, and the grinding time is 60min. After grinding, pass through a 100-mesh sieve to obtain a ground mixed powder;

[0021] (2) Add 12 parts of phenolic resin, 6 parts of dispersible latex powder, and 5 parts of triethylene glycol monomethyl ether into the ground mixed powder described in step (1) and heat and stir at a reaction temperature of 105° C. and a stirring speed of 150 r / h min, to obtain the preliminary thermal reaction mixture;

[0022] (3) Add the preliminary thermal reaction mixture in the step (2) to the vacuum reaction kettle, heat the reaction kettle, and control the temperature at 120° C., then add 4 parts of epoxy resin glue and 3 parts of bisphenol A to the reaction kettle, fully After mixing evenly, insulate and react for 20 minutes under a vacuum condition of -0.098MPa to o...

Embodiment 2

[0026] (1) 55 parts of bentonite, 30 parts of calcium sulfate, and 15 parts of blast furnace slag are added into a grinder for grinding, the speed of the grinder is controlled at 1900r / min, and the grinding time is 70min. After grinding, pass through a 100-mesh sieve to obtain a ground mixed powder;

[0027] (2) Add 14 parts of phenolic resin, 8 parts of dispersible latex powder, and 6 parts of triethylene glycol monomethyl ether to the ground mixed powder described in step (1) and heat and stir at a reaction temperature of 110°C and a stirring speed of 150 r / min, to get the preliminary thermal reaction mixture;

[0028] (3) Add the preliminary thermal reaction mixture in the step (2) to the vacuum reactor, heat the reactor, and control the temperature at 120° C., then add 5 parts of epoxy resin glue and 4 parts of bisphenol A to the reactor, fully After mixing evenly, insulate and react for 20 minutes under a vacuum condition of -0.099MPa to obtain a mixed slurry;

[0029] ...

Embodiment 3

[0032] (1) 60 parts of bentonite, 35 parts of calcium sulfate, and 20 parts of blast furnace slag are added into a grinder for grinding, the speed of the grinder is controlled at 2000r / min, and the grinding time is 80min. After grinding, pass through a 100-mesh sieve to obtain a ground mixed powder;

[0033](2) Add 16 parts of phenolic resin, 10 parts of dispersible latex powder, and 8 parts of triethylene glycol monomethyl ether to the ground mixed powder described in step (1) and heat and stir at a reaction temperature of 115° C. and a stirring speed of 150 r / min, to obtain the preliminary thermal reaction mixture;

[0034] (3) Add the preliminary thermal reaction mixture in the step (2) to the vacuum reactor, heat the reactor, and control the temperature at 120° C., then add 6 parts of epoxy resin glue and 5 parts of bisphenol A to the reactor, fully After mixing evenly, insulate and react for 20 minutes under vacuum condition of -0.1MPa to obtain a mixed slurry;

[0035]...

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PUM

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Abstract

The invention discloses a preparation method and application of a thermal-insulation building material. The method comprises the following steps: adding bentonite, calcium sulfate and blast furnace slag to a grinder for grinding, and sieving a ground material to obtain ground mixed powder; then, adding phenolic resin, dispersible latex powder and triethylene glycol monomethyl ether to the powder for heating and stirring; adding the obtained preliminary thermal reaction mixture to a vacuum reaction kettle, heating the reaction kettle, then adding epoxy resin glue and a stabilizer to the reaction kettle, and mixing the mixture sufficiently and uniformly for thermal reaction under a vacuum condition to obtain mixed slurry; finally, performing hot pressing and cooling on the mixed slurry in amold, and leaving the cooled mixed slurry overnight to obtain a finished product material. The prepared building material has good thermal insulation effect and high strength, and has good applicationprospect in building engineering.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a preparation method and application of a thermal insulation building material. Background technique [0002] The building energy-saving and thermal insulation materials used in my country at the present stage mainly include the following categories: (1) Inorganic thermal insulation materials, mainly rock wool, glass wool and expanded perlite, are the first developed thermal insulation materials. to a positive effect. Inorganic thermal insulation materials are resistant to acid and alkali, corrosion, no cracking, no falling off, high stability, no aging problem, and the same lifespan as the building wall. The construction is simple and the application range is wide. It is suitable for the insulation of various wall base materials and walls with complex shapes. And fully enclosed, no seams, no cavity, no cold and heat bridges. Not only can it be used for external ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14
CPCC04B26/14C04B2201/32C04B2201/50C04B14/104C04B14/365C04B18/141C04B24/302C04B24/023C04B24/02C04B2103/0057
Inventor 付主枝
Owner 付主枝