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Inorganic composite insulation board and preparation method thereof

An inorganic composite, thermal insulation board technology, applied in the field of new building thermal insulation materials, can solve the problems of insufficient thermal insulation performance, high water absorption, easy to hollow out, etc., and achieve excellent non-combustibility, thermal insulation performance, and low temperature shrinkage. , the effect of good hydrophobicity

Inactive Publication Date: 2015-02-18
安徽百穗供应链有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the existing inorganic thermal insulation materials, fiber thermal insulation materials such as foam glass, aluminum foam, ceramic foam, rock wool and mineral wool can meet the requirements of fire prevention performance, but considering the factors such as price, construction operability, environmental protection and energy saving, they cannot become thermal insulation materials. Mainstream products in the material market
Among them, the foamed cement insulation board has the advantages of low thermal conductivity, good heat preservation effect, non-combustible, waterproof, etc. Its disadvantages are: easy hollowing, low strength, and high water absorption rate. Although it has been developed rapidly in recent years, it is used outside buildings The long-term durability of insulation has not been verified
[0004] Most of the currently applied patents for composite insulation boards are composites of expanded perlite and inorganic materials such as cement, rock wool, fly ash, floating beads, vermiculite, calcium silicate, and silica sand. Insulation boards with excellent flame retardant performance are obtained, but the thermal insulation performance is slightly insufficient
Another type is the organic-inorganic composite of expanded perlite and polystyrene particles, but polystyrene particles are easy to burn and produce toxic substances, so it affects the flame retardancy of the insulation board

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Get 45 parts of expanded perlite and 10 parts of phenolic foam particles, put into a mixer and mix and stir for half an hour, under the situation of continuous stirring, add 35 parts of inorganic binder, 3 parts of organic reinforcing agent, 2 parts of inorganic binder to the above mixture successively Water repellent, 2 parts of inorganic reinforcing fibers, 1 part of flame retardant, 1 part of hardener, mixed and stirred for 50 minutes to obtain a mixture, poured the mixture into a fixed mold, and pressed the obtained plate under the pressure of a hydraulic press of 30-60Mpa. The board is dried in a constant temperature oven with a temperature of 150 ° C for 1.5 hours, and then packaged and put into storage after cooling.

[0043] The speed of the mixer is 80 rpm, the bulk density of the expanded perlite is 50-90kg / m3, the particle size is 1-5mm, the bulk density of the phenolic foam particles is 18-20kg / m3, the particle size is 0.5-5mm, the inorganic binder It is wat...

Embodiment 2

[0045] Get 40 parts of expanded perlite and 15 parts of phenolic foam particles, put into a mixer and mix and stir for half an hour, under the situation of continuous stirring, add 32 parts of inorganic binders, 6 parts of organic reinforcing agents, 2 parts of inorganic binders to the above mixture successively Water repellent, 2 parts of inorganic reinforcing fibers, 1 part of flame retardant, and 2 parts of hardening agent, mixed and stirred for 45 minutes to obtain a mixture, poured the mixture into a fixed mold, and pressurized the obtained plate under the pressure of a hydraulic press of 30-60Mpa. The board is dried in a constant temperature oven with a temperature of 140 ° C for 1.5 hours, and then packaged and stored in storage after cooling.

[0046] The speed of the mixer is 80 rpm, the bulk density of the expanded perlite is 50-90kg / m3, the particle size is 1-5mm, the bulk density of the phenolic foam particles is 18-20kg / m3, the particle size is 0.5-5mm, the inorgan...

Embodiment 3

[0048] Get 48 parts of expanded perlite and 5 parts of phenolic foam particles, put into a mixer and mix and stir for half an hour, under the situation of continuous stirring, add 36 parts of inorganic binder, 2 parts of organic reinforcing agent, 3 parts of inorganic binder to the above mixture successively Water repellent, 3 parts of inorganic reinforcing fibers, 2 parts of flame retardant, 1 part of hardener, mixed and stirred for 40 minutes to obtain a mixture, poured the mixture into a fixed mold, and pressed the obtained plate under the pressure of a hydraulic press of 30-60Mpa. The board is dried in a constant temperature oven with a temperature of 130 ° C for 1.5 hours, and then packaged and put into storage after cooling.

[0049] The speed of the mixer is 80 rpm, the bulk density of the expanded perlite is 50-90kg / m3, the particle size is 1-5mm, the bulk density of the phenolic foam particles is 18-20kg / m3, the particle size is 0.5-5mm, the inorganic binder It is wat...

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Abstract

The invention provides an inorganic composite insulation board and a preparation method thereof, belonging to the technical field of novel building insulation materials. The inorganic composite insulation board is characterized by comprising the following components by weight parts: 40-48 parts of expanded perlite, 5-15 parts of phenolic foam particles, 32-36 parts of an inorganic binder, 2-6 parts of an organic reinforcing agent, 2-3 parts of a waterproof agent, 2-3 parts of inorganic enhance fibers, 1-2 parts of a hardening agent, and 1-2 parts of a fire retardant. The above raw materials are fully stirred, compressed, molded, and dried under a constant temperature to prepare the inorganic composite insulation board, and the board has advantages of good thermal insulation performance, light weight, small thermal conductivity coefficient, good stability, high intensity, convenient construction, etc., and can be widely applied in roofs and walls of various industrial and civil buildings, waterproofing and insulation of cold storages, barns and basements, as well as various cold insulation engineering.

Description

technical field [0001] The invention belongs to the technical field of novel building thermal insulation materials, and particularly relates to an inorganic composite thermal insulation board and a preparation method thereof. Background technique [0002] With the advent of low-carbon economy, my country's requirements for building energy conservation are getting higher and higher. At present, there are dozens of various building insulation materials, which can be described as a hundred flowers blooming. Organic thermal insulation boards, mainly polystyrene board (EPS), extruded plastic board (XPS) and polyurethane (PU), account for more than 90% of the entire thermal insulation material market. Although the thermal insulation performance of organic thermal insulation board is outstanding, its flame retardant and fire resistance performance is slightly inferior. In recent years, fires caused by organic thermal insulation boards in Shanghai, Beijing, Shenyang and other plac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/26C04B16/08
Inventor 钟永能
Owner 安徽百穗供应链有限公司