CN109796170A - A kind of phase transformation temp auto-controlled cement foaming insulation board and its production method - Google Patents
A kind of phase transformation temp auto-controlled cement foaming insulation board and its production method Download PDFInfo
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- CN109796170A CN109796170A CN201910039061.1A CN201910039061A CN109796170A CN 109796170 A CN109796170 A CN 109796170A CN 201910039061 A CN201910039061 A CN 201910039061A CN 109796170 A CN109796170 A CN 109796170A
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Abstract
The invention discloses a kind of phase transformation temp auto-controlled cement foaming insulation boards and preparation method thereof can keep own temperature to change in smaller range containing phase-change material when certain ambient temperature changes.A kind of phase transformation temp auto-controlled cement foaming insulation board of the present invention includes the component of following weight proportion: 50~80 parts of cement, 10~30 parts of flyash, 9~12 parts of phase-change material, 30~50 parts of water, 4~8 parts of hydrogen peroxide, 4~8 parts of alkaline waterproof foam stabilizer, 0.005~0.025 part of regulator, 0.2~0.5 part of toughened fiber.A kind of phase transformation temp auto-controlled cement foaming insulation board apparent density of the present invention is 201kg/m3, and compression strength reaches 0.7MPa, and thermal coefficient reaches A1 grades down to 0.049W/ (mK), flame resistant performance rate.
Description
Technical field
The invention belongs to novel wall material technical fields, and in particular to a kind of phase transformation temp auto-controlled cement foaming insulation board and
Its production method.
Background technique
Cement insulation board uses chemical blowing process, and hydrogen peroxide is added to by cement, mineral admixture, water, additional
In the slurry that agent, toughened fiber form, foaming in mold is poured into after stirring rapidly, maintenance forms intensity under field conditions (factors)
After be cut into porous light heat preservation plate material.
The gentle thermal coefficient of the density of porous, expanded material, heat storage capacity being positively correlated property.To have thermal insulation material
There is preferable heat storage capacity, the density of material can be made to increase, so as to cause the increase of thermal coefficient.Therefore, ultralight heat preservation
Material often has lower thermal coefficient, and energy storage capability is poor simultaneously.Conventional cement foaming insulation board density is very small, has
Lower thermal coefficient thus has preferable heat-proof quality, while heat storage capacity is insufficient.Therefore it is used in China's cold district
When have very good heat preservation and energy conservation effects.But in China's hot-summer and cold-winter area in use, itself lower accumulation of heat energy
Power makes it very good can not maintain the constant of room temperature under daily cycle warm-natured degree changing environment, causes it at this
Energy-saving effect is not significant when a little areas use.
Phase-change material (PCM), which refers to, to be varied with temperature and changes physical property and can provide the substance of latent heat, in the external world
During variation of ambient temperature Process of absorption or liberation of heat, itself phase state changes to maintain a certain range of temperature constant state.It is sent out in cement
Phase-change material is added in bubble insulation board, can use the accumulation of heat energy that latent heat when phase-change material phase transformation increases cement foaming insulation board
Power, so that there is temperature change retardance and temperature ability of regulation and control in ambient temperature cyclically-varying, as a whole,
So that the heat storage capacity of thermal insulation material increases so that cement foaming insulation board hot-summer and cold-winter area using when can also show it is excellent
Different heat preservation and energy conservation effects.
Summary of the invention
The object of the present invention is to provide have preferable heat storage capacity and meanwhile have a kind of phase transformation compared with low thermal conductivity from
Temperature control cement foaming insulation board, in order to realize the purpose, the invention adopts the following technical scheme:
A kind of phase transformation temp auto-controlled cement foaming insulation board of the present invention, it is characterized in that raw material include the group of following weight proportion
Point: it is 50~80 parts of cement, 10~30 parts of flyash, 9~12 parts of phase-change material, 30~50 parts of water, 4~8 parts of hydrogen peroxide, early strong
Agent, 4~8 parts of alkaline waterproof foam stabilizer, 0.005~0.025 part of regulator, 0.2~0.5 part of toughened fiber.Wherein cement is general
Logical 42.5 cement of silicate, toughened fiber is polypropylene fibre, cries the cellulose ether adjusted as 100,000 viscosity, alkaline waterproof foam stabilizing
Agent is the ammonium stearate emulsion containing mass fraction 5.25% ammonium stearate and 0.9% potassium hydroxide, and hydrogen peroxide is mass concentration
27.5% industrial hydrogen peroxide.
Include using phase-change material following weight proportion component: it is 3~4 parts of atoleine, 3~4 parts of solid paraffin, swollen
10 parts of swollen perlite.Preparation method are as follows: be added to weight proportion than atoleine, 3~4 parts of solid paraffins for 3~4 parts
In 12~14 parts 85 DEG C of hot water, appropriate emulsifier constant temperature stirring 20min is added, and keep the temperature 10min and obtain paraffin wax emulsions.By institute
The paraffin wax emulsions produced and 10 parts of expanded perlites are placed in infiltration absorption 20min in vacuum tank and had both obtained required phase-change material.Its
Used in expanded perlite be No. 70 expanded perlites.
A kind of production procedure of phase transformation temp auto-controlled cement foaming insulation board is as follows: water, alkaline waterproof foam stabilizer, toughening is fine
Dimension, regulator are first placed in stirring in mixing plant, and cement and flyash is then added and phase-change material stirs most homogeneous slurry
Then hydrogen peroxide of short duration stirring rapidly is added in material, slurry is poured into mold foaming immediately, and maintenance is extremely formed under natural conditions
Demoulding after some strength, cutting can be prepared by a kind of phase transformation temp auto-controlled cement foaming insulation board of the present invention.
The principle of the invention are as follows: what atoleine and solid paraffin were produced, which compound paraffin, has and be suitable for construction material temperature control
Transition temperature range.In 20~30 DEG C of range of temperature, there is biggish specific heat capacity and good heat storage capacity, add
There are obviously heat preservation and energy conservation effects in energy-saving building materials.When will compound preparation of the paraffin as phase-change material, have
It is directly incorporated into, container encapsulation, the modes such as porous material absorption, is seeped wherein directly mixing as method is easy to appear mutually to separate and occur to be precipitated
Leakage;Although container package method energy avoids leakage, but increase complicated construction technique degree and cost with higher.Make
Not only there are outstanding job stability and anti-exudation stability, Er Qie with porous material such as expanded perlite Adsorption Paraffin
Simple process is convenient when use.Studies have shown that taking lotion absorption method that paraffin is adsorbed in expanded perlite than using direct
Melting absorption method has higher adsorption capacity and lower leaching rate, and highest adsorption capacity is up to 200%, still, in order to
Guarantee that phase change paraffin is not precipitated in expanded perlite, it is zone of reasonableness that maximum adsorption rate, which is no more than 70%,.In this absorption
Under rate, it is about 200~250kg/ that phase change paraffin, which is adsorbed on phase-change material apparent density made in No. 70 expanded perlites,
m3, close with cement foaming insulation board, a kind of made phase transformation temp auto-controlled cement foaming insulation board material is uniform not stratified.
Compared with prior art, the beneficial effect comprise that be prepared for it is a kind of it is ultralight, thermal coefficient is low, intensity is done
Cement foaming insulation board, improve its heat storage capacity so that its in 20~30 DEG C of range of temperature have preferable temperature
Retardance and temp auto-controlled ability.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1:
A kind of phase transformation temp auto-controlled cement foaming insulation board, preparation the following steps are included:
Raw material: cement 50kg, flyash 30kg, phase-change material 10kg, polypropylene fibre 0.3kg, cellulose ether 15g, water
32kg, hydrogen peroxide 5.5kg, alkaline waterproof foam stabilizer 5kg
The preparation of material: water, alkaline waterproof foam stabilizer, polypropylene fibre, cellulose ether are first placed in mixing plant and are stirred
10s is mixed, ordinary portland cement, flyash, phase-change material is then added and stirs 3min, until being mixed as homogeneous slurry, so
After hydrogen peroxide is added, stir 10s rapidly, slurry poured into mold foaming immediately, maintenance 1d is to forming one under natural conditions
Determine demoulding after intensity, cutting can be prepared by a kind of phase transformation temp auto-controlled cement foaming insulation board of the present invention.
The performance indicator of material:
Embodiment 2:
Raw material: cement 60kg, flyash 20kg, phase-change material 10kg, polypropylene fibre 0.3kg, cellulose ether 15g, water
33kg, hydrogen peroxide 5.5kg, alkaline waterproof foam stabilizer 5kg
The preparation of material: water, alkaline waterproof foam stabilizer, polypropylene fibre, cellulose ether are first placed in mixing plant and are stirred
10s is mixed, ordinary portland cement, flyash, phase-change material is then added and stirs 3min, until being mixed as homogeneous slurry, so
After hydrogen peroxide is added, stir 10s rapidly, slurry poured into mold foaming immediately, maintenance 1d is to forming one under natural conditions
Determine demoulding after intensity, cutting can be prepared by a kind of phase transformation temp auto-controlled cement foaming insulation board of the present invention.
The performance indicator of material:
Embodiment 3:
A kind of phase transformation temp auto-controlled cement foaming insulation board, preparation the following steps are included:
Raw material: cement 70kg, flyash 10kg, phase-change material 10kg, polypropylene fibre 0.3kg, cellulose ether 15g, water
34kg, hydrogen peroxide 5.5kg, alkaline waterproof foam stabilizer 5kg
The preparation of material: water, alkaline waterproof foam stabilizer, polypropylene fibre, cellulose ether are first placed in mixing plant and are stirred
10s is mixed, ordinary portland cement, flyash, phase-change material is then added and stirs 3min, until being mixed as homogeneous slurry, so
After hydrogen peroxide is added, stir 10s rapidly, slurry poured into mold foaming immediately, maintenance 1d is to forming one under natural conditions
Determine demoulding after intensity, cutting can be prepared by a kind of phase transformation temp auto-controlled cement foaming insulation board of the present invention.
The performance indicator of material:
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications that technical concept of the invention is made should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (2)
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111908940A (en) * | 2020-07-07 | 2020-11-10 | 中筑科技股份有限公司 | Novel expanded graphite cement foaming thermal insulation material for industrial pipeline |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104909663A (en) * | 2015-06-10 | 2015-09-16 | 湖北大学 | Waste regeneration phase change cement forming insulation board and preparation method thereof |
CN106278029A (en) * | 2016-08-10 | 2017-01-04 | 湖北恒福节能科技有限公司 | A kind of alkali-activated carbonatite large-doping-amount fly ash cement foaming insulation board and preparation method thereof |
CN109020397A (en) * | 2018-09-10 | 2018-12-18 | 成都宏基建材股份有限公司 | A kind of phase-change energy-storage mortar and preparation method thereof |
-
2019
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104909663A (en) * | 2015-06-10 | 2015-09-16 | 湖北大学 | Waste regeneration phase change cement forming insulation board and preparation method thereof |
CN106278029A (en) * | 2016-08-10 | 2017-01-04 | 湖北恒福节能科技有限公司 | A kind of alkali-activated carbonatite large-doping-amount fly ash cement foaming insulation board and preparation method thereof |
CN109020397A (en) * | 2018-09-10 | 2018-12-18 | 成都宏基建材股份有限公司 | A kind of phase-change energy-storage mortar and preparation method thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111908940A (en) * | 2020-07-07 | 2020-11-10 | 中筑科技股份有限公司 | Novel expanded graphite cement foaming thermal insulation material for industrial pipeline |
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Application publication date: 20190524 |