CN105174998B - A kind of preparation method of foamed concrete thermal-insulating material - Google Patents
A kind of preparation method of foamed concrete thermal-insulating material Download PDFInfo
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- CN105174998B CN105174998B CN201510507871.7A CN201510507871A CN105174998B CN 105174998 B CN105174998 B CN 105174998B CN 201510507871 A CN201510507871 A CN 201510507871A CN 105174998 B CN105174998 B CN 105174998B
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Abstract
The invention discloses a kind of preparation method of foamed concrete thermal-insulating material, first portland cement, coal dust ash, calcium oxide, gelatine powder part are mixed, it is added to the water, stirring, it is stirring while adding to add chitosan, sodium aluminate, anhydrous sodium sulfate, lithium carbonate, hydroxypropyl methylcellulose, polypropylene fibre, sepiolite, diethylenetriamines, haloflex, is eventually adding anion surfactant type foaming agent, lecithin, foamed machine stirring foaming, die trial, stand foaming are injected, is produced.The foamed concrete thermal-insulating material of the present invention it is complete it is closely knit, elastic it is good, crushing resistance is strong, soundproof effect is good, impervious strong.
Description
Technical field
The invention belongs to building material technical field, and in particular to a kind of preparation method of foamed concrete thermal-insulating material.
Background technology
In recent years, the newly-increased heating house construction area in the vast north of china in winter heating districts cities and towns in China every year on average can be high
Up to 1 × 108m2.If all new buildings all under equal conditions, are used into energy-saving design, these are increased newly heating building
Area energy-saving index is controlled within 50%, then the heating for being often only the newly-increased building in this part is reduced with coal can
1500kt.In addition, the consumption of coal is reduced, the thing followed is just the reduction of two given off during burning of coal
The discharge of the pernicious gases such as sulfur oxide, the discharge of flue dust, discharge of lime-ash etc..As can be seen here, suitable China's national situation is developed
High-efficiency insulated heat-barrier material, the energy conservation standard for vigorously promoting the use energy saving building, conscientiously implementing China, for saving heating energy
Consumption, environmental protection, growing continuously and fast for Chinese national economy is kept to be extremely important.
Novel environment-friendly energy saving building material is different from common construction material, and it will not only have light weight, intensity high
Etc. excellent mechanical property, and to have and be used as the thermal property such as insulation, sound insulation, antidetonation necessary to insulation material,
So as to provide a comfortable living environment for occupant.In recent years, ultralight foam concrete was as a kind of new guarantor
Adiabator is more and more applied in construction.In the preparation process of ultralight foam concrete, to binder materials
Performance requirement it is very strict, do not require nothing more than used by binder materials have higher early strength, faster setting time, also
Possesses the features such as early strength development is very fast, later strength is higher.Based on above reason, in actual production, prepare ultralight
Most of foam concrete is to be used as binder materials using special cements such as sulphate aluminium cement, ferrous aluminate cements.But with special type
Cement prepares foam concrete, and there is problems：First, substantial amounts of research shows both at home and abroad, special cement, concrete system
The durability of product is much not as good as ordinary cement, concrete product.Especially when special cement, concrete product are applied to building
Outside when, the durability of product will drastically decline；Secondly, compared with ordinary cement, concrete, the special cement such as aluminium sulfate
Resource it is relatively deficient, price is much higher compared with ordinary cement；These all seriously hinder the ultralight foam concrete of special cement
Further development as insulation material.Therefore, research and develop using ordinary cement as major gelled material, economic durable, performance
Excellent novel ultra-light foam concrete is imperative.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art and provides a kind of preparation side of foamed concrete thermal-insulating material
Method, resulting materials it is complete it is closely knit, elastic it is good, crushing resistance is strong, soundproof effect is good, impervious strong.
A kind of preparation method of foamed concrete thermal-insulating material, comprises the following steps：
Step 1, in parts by weight, by 20~40 parts of portland cement, 6~9 parts of coal dust ash, 2~8 parts of calcium oxide, gelatine
1~4 part of mixing of powder, is added to the water, stirs, obtain slurry；
Step 2, in parts by weight, by 1~5 part of chitosan, 2~6 parts of sodium aluminate, 3~7 parts of anhydrous sodium sulfate, lithium carbonate 1
~6 parts, 2~4 parts of hydroxypropyl methylcellulose, 3~8 parts of polypropylene fibre, 2~5 parts of sepiolite, 1~6 part of diethylenetriamines, chlorine
Change 2~5 parts of polyethylene to add in step 1 gained slurry, it is stirring while adding, obtain mixed slurry；
Step 3, in parts by weight, 3~6 parts of anion surfactant type foaming agent, 2~7 parts of lecithin are added into step
In rapid 2 gained mixed slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce.
As the further improvement of foregoing invention, whipping temp is 50~70 DEG C in step 1, mixing speed is 200~
400rpm。
As the further improvement of foregoing invention, slurry temperature is 60~90 DEG C in step 2, and whipping process is in heat-retaining condition
Lower progress, mixing speed are 100~300rpm.
As the further improvement of foregoing invention, the vacuum of foaming machine is 0.08~0.1MPa in step 3, mixing speed
For 100~200rpm.
As the further improvement of foregoing invention, the chlorinty of the haloflex is 65%~72%.
As the further improvement of foregoing invention, 2~7 parts of t-Butylphenol formaldehyde resin is also needed in step 2.
The foamed concrete thermal-insulating material of the present invention it is complete it is closely knit, elastic it is good, crushing resistance is strong, soundproof effect is good, impervious
Property is strong.
Embodiment
Embodiment 1
A kind of preparation method of foamed concrete thermal-insulating material, comprises the following steps：
Step 1, in parts by weight, 20 parts of portland cement, 6 parts of coal dust ash, 2 parts of calcium oxide, 1 part of gelatine powder are mixed,
It is added to the water, stirs, obtain slurry；
Step 2, in parts by weight, by 1 part of chitosan, 2 parts of sodium aluminate, 3 parts of anhydrous sodium sulfate, 1 part of lithium carbonate, hydroxypropyl first
2 parts of cellulose, 3 parts of polypropylene fibre, 2 parts of sepiolite, 1 part of diethylenetriamines, 2 parts of haloflex are added obtained by step 1
It is stirring while adding in slurry, obtain mixed slurry；
Step 3, in parts by weight, 3 parts of anion surfactant type foaming agent, 2 parts of lecithin are added to obtained by step 2
In mixed slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce.
Whipping temp is 50 DEG C in step 1, mixing speed 400rpm.
Slurry temperature is 60 DEG C in step 2, and whipping process is carried out under heat-retaining condition, mixing speed 300rpm.
The vacuum of foaming machine is 0.08MPa, mixing speed 200rpm in step 3.
The chlorinty of the haloflex is 65%.
Embodiment 2
A kind of preparation method of foamed concrete thermal-insulating material, comprises the following steps：
Step 1, in parts by weight, 27 parts of portland cement, 8 parts of coal dust ash, 5 parts of calcium oxide, 3 parts of gelatine powder are mixed,
It is added to the water, stirs, obtain slurry；
Step 2, in parts by weight, by 3 parts of chitosan, 5 parts of sodium aluminate, 6 parts of anhydrous sodium sulfate, 4 parts of lithium carbonate, hydroxypropyl first
3 parts of cellulose, 7 parts of polypropylene fibre, 4 parts of sepiolite, 5 parts of diethylenetriamines, 3 parts of haloflex are added obtained by step 1
It is stirring while adding in slurry, obtain mixed slurry；
Step 3, in parts by weight, 5 parts of anion surfactant type foaming agent, 4 parts of lecithin are added to obtained by step 2
In mixed slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce.
Whipping temp is 65 DEG C in step 1, mixing speed 250rpm.
Slurry temperature is 75 DEG C in step 2, and whipping process is carried out under heat-retaining condition, mixing speed 180rpm.
The vacuum of foaming machine is 0.09MPa, mixing speed 150rpm in step 3.
The chlorinty of the haloflex is 68%.
Embodiment 3
A kind of preparation method of foamed concrete thermal-insulating material, comprises the following steps：
Step 1, in parts by weight, 34 parts of portland cement, 8 parts of coal dust ash, 5 parts of calcium oxide, 2 parts of gelatine powder are mixed,
It is added to the water, stirs, obtain slurry；
Step 2, in parts by weight, by 4 parts of chitosan, 5 parts of sodium aluminate, 6 parts of anhydrous sodium sulfate, 2 parts of lithium carbonate, hydroxypropyl first
3 parts of cellulose, 6 parts of polypropylene fibre, 4 parts of sepiolite, 2 parts of diethylenetriamines, 3 parts of haloflex are added obtained by step 1
It is stirring while adding in slurry, obtain mixed slurry；
Step 3, in parts by weight, 5 parts of anion surfactant type foaming agent, 6 parts of lecithin are added to obtained by step 2
In mixed slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce.
Whipping temp is 55 DEG C in step 1, mixing speed 350rpm.
Slurry temperature is 80 DEG C in step 2, and whipping process is carried out under heat-retaining condition, mixing speed 150rpm.
The vacuum of foaming machine is 0.1MPa, mixing speed 100rpm in step 3.
The chlorinty of the haloflex is 70%.
Embodiment 4
A kind of preparation method of foamed concrete thermal-insulating material, comprises the following steps：
Step 1, in parts by weight, 40 parts of portland cement, 9 parts of coal dust ash, 8 parts of calcium oxide, 4 parts of gelatine powder are mixed,
It is added to the water, stirs, obtain slurry；
Step 2, in parts by weight, by 5 parts of chitosan, 6 parts of sodium aluminate, 7 parts of anhydrous sodium sulfate, 6 parts of lithium carbonate, hydroxypropyl first
4 parts of cellulose, 8 parts of polypropylene fibre, 5 parts of sepiolite, 6 parts of diethylenetriamines, 5 parts of haloflex are added obtained by step 1
It is stirring while adding in slurry, obtain mixed slurry；
Step 3, in parts by weight, 6 parts of anion surfactant type foaming agent, 7 parts of lecithin are added to obtained by step 2
In mixed slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce.
Whipping temp is 70 DEG C in step 1, mixing speed 200rpm.
Slurry temperature is 90 DEG C in step 2, and whipping process is carried out under heat-retaining condition, mixing speed 100rpm.
The vacuum of foaming machine is 0.1MPa, mixing speed 100rpm in step 3.
The chlorinty of the haloflex is 72%.
Embodiment 5
The present embodiment and the difference of embodiment 3 are：2~7 parts of t-Butylphenol formaldehyde resin is also needed in step 2.
A kind of preparation method of foamed concrete thermal-insulating material, comprises the following steps：
Step 1, in parts by weight, 34 parts of portland cement, 8 parts of coal dust ash, 5 parts of calcium oxide, 2 parts of gelatine powder are mixed,
It is added to the water, stirs, obtain slurry；
Step 2, in parts by weight, by 4 parts of chitosan, 5 parts of sodium aluminate, 6 parts of anhydrous sodium sulfate, 2 parts of lithium carbonate, hydroxypropyl first
3 parts of cellulose, 6 parts of polypropylene fibre, 4 parts of sepiolite, 2 parts of diethylenetriamines, 3 parts of haloflex, tert-butyl phenol first
5 parts of urea formaldehyde is added in step 1 gained slurry, stirring while adding, obtains mixed slurry；
Step 3, in parts by weight, 5 parts of anion surfactant type foaming agent, 6 parts of lecithin are added to obtained by step 2
In mixed slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce.
Whipping temp is 55 DEG C in step 1, mixing speed 350rpm.
Slurry temperature is 80 DEG C in step 2, and whipping process is carried out under heat-retaining condition, mixing speed 150rpm.
The vacuum of foaming machine is 0.1MPa, mixing speed 100rpm in step 3.
The chlorinty of the haloflex is 70%.
Compared with patent 103011896B, performance test is carried out to the gained of embodiment 1 to 5 sample, it is as a result as follows：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Reference examples | |
| Unit weight/kgm-3 | 285 | 290 | 305 | 292 | 324 | 245 |
| Water absorption rate/% | 11.4 | 12.5 | 10.1 | 11.7 | 7.4 | 12.5 |
| Compression strength/MPa | 1.85 | 1.95 | 2.07 | 1.89 | 2.43 | 1.43 |
| Thermal conductivity factor/W (mK)-1 | 0.068 | 0.072 | 0.079 | 0.073 | 0.089 | 0.032 |
| Porosity/% | 13.5 | 12.9 | 11.5 | 12.5 | 10.9 | 20.4 |
As seen from the above table, insulation material of the invention it is complete it is closely knit, elastic it is good, crushing resistance is strong, soundproof effect is good, impervious
Property is strong.
Claims (1)
- A kind of 1. preparation method of foamed concrete thermal-insulating material, it is characterised in that：Comprise the following steps：Step 1, in parts by weight, by 2 parts of 34 parts of portland cement, 8 parts of coal dust ash, 5 parts of calcium oxide, gelatine powder mixing, add In water, stirring, slurry is obtained；Step 2, in parts by weight, by 4 parts of chitosan, 5 parts of sodium aluminate, 6 parts of anhydrous sodium sulfate, 2 parts of lithium carbonate, hypromellose 3 parts of element, 6 parts of polypropylene fibre, 4 parts of sepiolite, 2 parts of diethylenetriamines, 3 parts of haloflex, t-Butylphenol formaldehyde tree 5 parts of fat is added in step 1 gained slurry, stirring while adding, obtains mixed slurry；Step 3, in parts by weight, 5 parts of anion surfactant type foaming agent, 6 parts of lecithin are added to mixed obtained by step 2 Close in slurry, foamed machine stirring foaming, injection die trial, stand foaming, produce；Whipping temp is 55 DEG C in step 1, mixing speed 350rpm；Slurry temperature is 80 DEG C in step 2, and whipping process is carried out under heat-retaining condition, mixing speed 150rpm；The vacuum of foaming machine is 0.1MPa, mixing speed 100rpm in step 3；The chlorinty of the haloflex is 70%.
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| CN105174998B true CN105174998B (en) | 2017-12-08 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011896A (en) * | 2012-12-21 | 2013-04-03 | 王寿光 | Foam concrete |
| CN103467006A (en) * | 2013-08-05 | 2013-12-25 | 安徽中龙建材科技有限公司 | Aerated concrete block with high thermal insulation property |
| CN103641390A (en) * | 2013-11-08 | 2014-03-19 | 许炜 | Compound bubble mortar for lightweight concrete |
| CN104774033A (en) * | 2015-04-08 | 2015-07-15 | 西南科技大学 | General purpose Portland cement based ultra-light physical foamed concrete |
-
2015
- 2015-08-18 CN CN201510507871.7A patent/CN105174998B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011896A (en) * | 2012-12-21 | 2013-04-03 | 王寿光 | Foam concrete |
| CN103467006A (en) * | 2013-08-05 | 2013-12-25 | 安徽中龙建材科技有限公司 | Aerated concrete block with high thermal insulation property |
| CN103641390A (en) * | 2013-11-08 | 2014-03-19 | 许炜 | Compound bubble mortar for lightweight concrete |
| CN104774033A (en) * | 2015-04-08 | 2015-07-15 | 西南科技大学 | General purpose Portland cement based ultra-light physical foamed concrete |
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| CN105174998A (en) | 2015-12-23 |
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