CN105174998A - Preparation method for foam concrete insulating material - Google Patents

Preparation method for foam concrete insulating material Download PDF

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Publication number
CN105174998A
CN105174998A CN201510507871.7A CN201510507871A CN105174998A CN 105174998 A CN105174998 A CN 105174998A CN 201510507871 A CN201510507871 A CN 201510507871A CN 105174998 A CN105174998 A CN 105174998A
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parts
insulating material
preparation
foaming
foamed concrete
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CN201510507871.7A
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CN105174998B (en
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陈平
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Suzhou Saiside Engineering Equipment Co Ltd
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Suzhou Saiside Engineering Equipment Co Ltd
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Abstract

The invention discloses a preparation method for a foam concrete insulating material. The preparation method comprises the following steps: mixing Portland cement, coal dust, calcium oxide and bone glue powder, adding the obtained mixture into water and carrying out stirring; then adding chitosan, sodium aluminate, anhydrous sodium sulfate, lithium carbonate, hydroxypropyl methylcellulose, polypropylene fiber, meerschaum, diethylenetriamine and chlorinated polyethylene under stirring; adding an anionic surfactant type foaming agent and phosphatidylcholine and carrying out foaming through stirring in virtue of a foaming machine; and injecting the foamed mixing into a test mold and carrying out standing and foaming. The foam concrete insulating material prepared in the invention is intact and dense and has good elasticity, anti-compression performance, sound insulation effect and impermeability.

Description

A kind of preparation method of foamed concrete thermal-insulating material
Technical field
The invention belongs to building material technical field, be specifically related to a kind of preparation method of foamed concrete thermal-insulating material.
Background technology
In recent years, China's vast north of china in winter heating districts cities and towns increase heating house floor area of building newly every year on average can up to 1 × 10 8m 2.If under equal conditions, all new buildings are all adopted energy-saving design, these newly-increased heating building area energy-saving indexs are controlled within 50%, be then often only the heating coal that this part increases building newly and just can reduce 1500kt.In addition, decrease the consumption of coal, the consequent is just the reduction of the discharge of the obnoxious flavoures such as the sulfurous gas given off in burning of coal process, the discharge of flue dust, the discharge etc. of lime-ash.As can be seen here; the energy conservation standard developed the high-efficiency insulated lagging material of applicable China's national situation, vigorously promote the use energy saving building, conscientiously implement China, is extremely important for saving heating energy consumption, protection of the environment, growing continuously and fast of maintenance Chinese national economy.
Novel environment-friendly energy saving building material is different from common material of construction, it not only will have, and quality is light, the mechanical property of the high excellence of intensity, and will have as thermal properties such as the necessary heat insulating of lagging material, sound insulation, antidetonations, thus a comfortable living environment can be provided for occupant.In recent years, ultralight foamed concrete was more and more applied in building operation as a kind of heat insulating material.In the preparation process of ultralight foamed concrete, very strict to the performance requriements of gelling material, not only require that the gelling material adopted has higher early strength, faster time of coagulation, also will possess early strength and develop very fast, later strength comparatively high.Based on above reason, in actual production, preparing ultralight foamed concrete great majority is using the special cement such as aluminosulfate cement, ferro-aluminate cement as gelling material.But prepare foamed concrete with special cement and there are problems: first, large quantifier elimination shows both at home and abroad, and the weather resistance of special cement, concrete product is far away not as good as Portland cement, concrete product.Especially, when special cement, concrete product are applied to buildings outside, the weather resistance of goods will sharply decline; Secondly, compared with Portland cement, concrete, the resource of the special cements such as sulplo-aluminate is relatively deficient, and price comparatively Portland cement wants high a lot; These all seriously hinder the ultralight foamed concrete of special cement further developing as lagging material.Therefore, research and develop with Portland cement is that major gelled material, economic novel ultra-light foamed concrete that is durable, excellent performance are imperative.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art and the preparation method that a kind of foamed concrete thermal-insulating material is provided, resulting materials complete closely knit, elasticity is good, crushing resistance is strong, soundproof effect is good, impermeability is strong.
A preparation method for foamed concrete thermal-insulating material, comprises the following steps:
Step 1, with parts by weight, by silicate cement 20 ~ 40 parts, coal dust ash 6 ~ 9 parts, 2 ~ 8 parts, calcium oxide, the mixing of 1 ~ 4 part, gelatine powder, is added to the water, and stirs, obtains slip;
Step 2, with parts by weight, chitosan 1 ~ 5 part, sodium aluminate 2 ~ 6 parts, anhydrous sodium sulphate 3 ~ 7 parts, Quilonum Retard 1 ~ 6 part, hypromellose 2 ~ 4 parts, polypropylene fibre 3 ~ 8 parts, sepiolite 2 ~ 5 parts, diethylenetriamine 1 ~ 6 part, chlorinatedpolyethylene 2 ~ 5 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 3 ~ 6 parts, 2 ~ 7 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
As the further improvement of foregoing invention, in step 1, whipping temp is 50 ~ 70 DEG C, and stirring velocity is 200 ~ 400rpm.
As the further improvement of foregoing invention, in step 2, slurry temperature is 60 ~ 90 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 100 ~ 300rpm.
As the further improvement of foregoing invention, in step 3, the vacuum tightness of foaming machine is 0.08 ~ 0.1MPa, and stirring velocity is 100 ~ 200rpm.
As the further improvement of foregoing invention, the chlorinity of described chlorinatedpolyethylene is 65% ~ 72%.
As the further improvement of foregoing invention, in step 2, also need t-Butylphenol formaldehyde resin 2 ~ 7 parts.
Foamed concrete thermal-insulating material of the present invention complete closely knit, elasticity is good, crushing resistance is strong, soundproof effect is good, impermeability is strong.
Embodiment
Embodiment 1
A preparation method for foamed concrete thermal-insulating material, comprises the following steps:
Step 1, with parts by weight, by silicate cement 20 parts, coal dust ash 6 parts, 2 parts, calcium oxide, the mixing of 1 part, gelatine powder, is added to the water, stirs, obtain slip;
Step 2, with parts by weight, chitosan 1 part, sodium aluminate 2 parts, anhydrous sodium sulphate 3 parts, Quilonum Retard 1 part, hypromellose 2 parts, polypropylene fibre 3 parts, sepiolite 2 parts, diethylenetriamine 1 part, chlorinatedpolyethylene 2 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 3 parts, 2 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
In step 1, whipping temp is 50 DEG C, and stirring velocity is 400rpm.
In step 2, slurry temperature is 60 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 300rpm.
In step 3, the vacuum tightness of foaming machine is 0.08MPa, and stirring velocity is 200rpm.
The chlorinity of described chlorinatedpolyethylene is 65%.
Embodiment 2
A preparation method for foamed concrete thermal-insulating material, comprises the following steps:
Step 1, with parts by weight, by silicate cement 27 parts, coal dust ash 8 parts, 5 parts, calcium oxide, the mixing of 3 parts, gelatine powder, is added to the water, stirs, obtain slip;
Step 2, with parts by weight, chitosan 3 parts, sodium aluminate 5 parts, anhydrous sodium sulphate 6 parts, Quilonum Retard 4 parts, hypromellose 3 parts, polypropylene fibre 7 parts, sepiolite 4 parts, diethylenetriamine 5 parts, chlorinatedpolyethylene 3 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 5 parts, 4 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
In step 1, whipping temp is 65 DEG C, and stirring velocity is 250rpm.
In step 2, slurry temperature is 75 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 180rpm.
In step 3, the vacuum tightness of foaming machine is 0.09MPa, and stirring velocity is 150rpm.
The chlorinity of described chlorinatedpolyethylene is 68%.
Embodiment 3
A preparation method for foamed concrete thermal-insulating material, comprises the following steps:
Step 1, with parts by weight, by silicate cement 34 parts, coal dust ash 8 parts, 5 parts, calcium oxide, the mixing of 2 parts, gelatine powder, is added to the water, stirs, obtain slip;
Step 2, with parts by weight, chitosan 4 parts, sodium aluminate 5 parts, anhydrous sodium sulphate 6 parts, Quilonum Retard 2 parts, hypromellose 3 parts, polypropylene fibre 6 parts, sepiolite 4 parts, diethylenetriamine 2 parts, chlorinatedpolyethylene 3 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 5 parts, 6 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
In step 1, whipping temp is 55 DEG C, and stirring velocity is 350rpm.
In step 2, slurry temperature is 80 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 150rpm.
In step 3, the vacuum tightness of foaming machine is 0.1MPa, and stirring velocity is 100rpm.
The chlorinity of described chlorinatedpolyethylene is 70%.
Embodiment 4
A preparation method for foamed concrete thermal-insulating material, comprises the following steps:
Step 1, with parts by weight, by silicate cement 40 parts, coal dust ash 9 parts, 8 parts, calcium oxide, the mixing of 4 parts, gelatine powder, is added to the water, stirs, obtain slip;
Step 2, with parts by weight, chitosan 5 parts, sodium aluminate 6 parts, anhydrous sodium sulphate 7 parts, Quilonum Retard 6 parts, hypromellose 4 parts, polypropylene fibre 8 parts, sepiolite 5 parts, diethylenetriamine 6 parts, chlorinatedpolyethylene 5 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 6 parts, 7 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
In step 1, whipping temp is 70 DEG C, and stirring velocity is 200rpm.
In step 2, slurry temperature is 90 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 100rpm.
In step 3, the vacuum tightness of foaming machine is 0.1MPa, and stirring velocity is 100rpm.
The chlorinity of described chlorinatedpolyethylene is 72%.
Embodiment 5
The difference of the present embodiment and embodiment 3 is: also need t-Butylphenol formaldehyde resin 2 ~ 7 parts in step 2.
A preparation method for foamed concrete thermal-insulating material, comprises the following steps:
Step 1, with parts by weight, by silicate cement 34 parts, coal dust ash 8 parts, 5 parts, calcium oxide, the mixing of 2 parts, gelatine powder, is added to the water, stirs, obtain slip;
Step 2, with parts by weight, chitosan 4 parts, sodium aluminate 5 parts, anhydrous sodium sulphate 6 parts, Quilonum Retard 2 parts, hypromellose 3 parts, polypropylene fibre 6 parts, sepiolite 4 parts, diethylenetriamine 2 parts, chlorinatedpolyethylene 3 parts, t-Butylphenol formaldehyde resin 5 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 5 parts, 6 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
In step 1, whipping temp is 55 DEG C, and stirring velocity is 350rpm.
In step 2, slurry temperature is 80 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 150rpm.
In step 3, the vacuum tightness of foaming machine is 0.1MPa, and stirring velocity is 100rpm.
The chlorinity of described chlorinatedpolyethylene is 70%.
Compare with patent 103011896B, carry out performance test to embodiment 1 to 5 gained sample, result is 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-intake rate/% 11.4 12.5 10.1 11.7 7.4 12.5
Ultimate compression strength/MPa 1.85 1.95 2.07 1.89 2.43 1.43
Thermal conductivity/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, lagging material of the present invention complete closely knit, elasticity is good, crushing resistance is strong, soundproof effect is good, impermeability is strong.

Claims (6)

1. a preparation method for foamed concrete thermal-insulating material, is characterized in that: comprise the following steps:
Step 1, with parts by weight, by silicate cement 20 ~ 40 parts, coal dust ash 6 ~ 9 parts, 2 ~ 8 parts, calcium oxide, the mixing of 1 ~ 4 part, gelatine powder, is added to the water, and stirs, obtains slip;
Step 2, with parts by weight, chitosan 1 ~ 5 part, sodium aluminate 2 ~ 6 parts, anhydrous sodium sulphate 3 ~ 7 parts, Quilonum Retard 1 ~ 6 part, hypromellose 2 ~ 4 parts, polypropylene fibre 3 ~ 8 parts, sepiolite 2 ~ 5 parts, diethylenetriamine 1 ~ 6 part, chlorinatedpolyethylene 2 ~ 5 parts are added in step 1 gained slurry, limit edged stirs, and obtains mixed slurry;
Step 3, with parts by weight, adds in step 2 gained mixed slurry by anion surfactant type whipping agent 3 ~ 6 parts, 2 ~ 7 parts, Yelkin TTS, stirs foaming through foaming machine, injects die trial, leaves standstill foaming, to obtain final product.
2. the preparation method of foamed concrete thermal-insulating material according to claim 1, is characterized in that: in step 1, whipping temp is 50 ~ 70 DEG C, and stirring velocity is 200 ~ 400rpm.
3. the preparation method of foamed concrete thermal-insulating material according to claim 1, is characterized in that: in step 2, slurry temperature is 60 ~ 90 DEG C, and whipping process carries out under heat-retaining condition, and stirring velocity is 100 ~ 300rpm.
4. the preparation method of foamed concrete thermal-insulating material according to claim 1, is characterized in that: in step 3, the vacuum tightness of foaming machine is 0.08 ~ 0.1MPa, and stirring velocity is 100 ~ 200rpm.
5. the preparation method of foamed concrete thermal-insulating material according to claim 1, is characterized in that: the chlorinity of described chlorinatedpolyethylene is 65% ~ 72%.
6. the preparation method of foamed concrete thermal-insulating material according to claim 1, is characterized in that: also need t-Butylphenol formaldehyde resin 2 ~ 7 parts in step 2.
CN201510507871.7A 2015-08-18 2015-08-18 A kind of preparation method of foamed concrete thermal-insulating material Expired - Fee Related CN105174998B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119931308A (en) * 2025-01-13 2025-05-06 江苏苏博特新材料股份有限公司 Organic-inorganic composite pipeline thermal insulation material and preparation method and application thereof

Citations (4)

* Cited by examiner, † Cited by third party
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119931308A (en) * 2025-01-13 2025-05-06 江苏苏博特新材料股份有限公司 Organic-inorganic composite pipeline thermal insulation material and preparation method and application thereof

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Granted publication date: 20171208