CN107522503A - A kind of high-intensity heat insulating material and preparation method thereof - Google Patents

A kind of high-intensity heat insulating material and preparation method thereof Download PDF

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Publication number
CN107522503A
CN107522503A CN201610475315.0A CN201610475315A CN107522503A CN 107522503 A CN107522503 A CN 107522503A CN 201610475315 A CN201610475315 A CN 201610475315A CN 107522503 A CN107522503 A CN 107522503A
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weight
parts
galapectite
cement
heat insulating
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李洪彦
刘洪丽
宋礼猛
付永强
魏冬青
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Tianjin Chengjian University
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Tianjin Chengjian University
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B14/00Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02Granular materials, e.g. microballoons
    • C04B14/04Silica-rich materials; Silicates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C04B28/10Lime cements or magnesium oxide cements
    • C04B28/12Hydraulic lime
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of high-intensity heat insulating material and preparation method thereof, supports galapectite tridimensional network to prepare galapectite aeroge first with the method for wearing galapectite in polymer, then that it is compound with foam concrete, and a kind of high-intensity heat insulating material is made.Technical scheme overcomes some the deficiencies in the prior art, foam concrete enhancing is realized with being realized while high hole, a kind of high-intensity heat insulating material and preparation method thereof is provided, is advantageous to significantly improve the high intensity and thermal and insulating performance of foamed concrete material.

Description

A kind of high-intensity heat insulating material and preparation method thereof
Technical field
The invention belongs to green construction material field, more particularly, is related to a kind of high-intensity heat insulating material and its system Preparation Method.
Background technology
Foam concrete is that appropriate micro-bubble is introduced in cement mortar or cement mortar, after stirring cast hardening and Into a kind of inside contain the blown-out concretes of a large amount of airtight air vents, due to containing a large amount of bubbles inside foam concrete, because Compared with normal concrete, hardened foam concrete has the special superiority energy such as light thermal-insulation, heat-insulated, sound insulation, and has for this There is low modulus of elasticity, so as to good stress is scattered and shock-absorbing performance, therefore foam concrete can be competent at some property Special occasion can be required, meet modern construction engineering requirement (《Foamed concrete material and engineer applied》, Tang Ming etc. writes, China Construction Industry Press, 2013).At present foam concrete be applied to production building block, light weight board, trench fill, Abutment cast, gap filling, thermal insulation of roof etc. have also been applied.The quality of China's foam concrete is not universal high, mainly Show as low strength, shrink it is big easy to crack, the problems such as water absorption rate moisture content is big (《Foam concrete》, Zhang Jusong etc. writes, Ha Er Shore Polytechnic University Publishing House, 2016).And utilized more than the research to foam concrete with solid waste, engineer applied, product development, property Based on the application studies such as energy optimization, patented technology, the discussion of foam concrete basic law, but pin are directed in these researchs Stronger to property, the reference value provided for other researchs and application is limited.The porosity of foam concrete is higher, its heat-insulating property It is better, but its intensity will be poorer, fiber is added into foam concrete can significantly improve its intensity, but can reduce Its porosity, so as to reduce its heat-insulating property, so for foam concrete, the raising of heat-insulating property and the raising of intensity Into a conspicuous contradiction.
The content of the invention
It is an object of the invention to overcome some the deficiencies in the prior art, improve existing foam concrete low intensity, protect The bad performance of warm heat-proof quality, there is provided a kind of high-intensity heat insulating material and preparation method thereof, be advantageous to significantly improve foam The high intensity and thermal and insulating performance of concrete material.
The technical purpose of the present invention is achieved by following technical proposals:
A kind of high-intensity heat insulating material and preparation method thereof, carry out as steps described below:
Step 1, the preparation of galapectite aeroge
The galapectite of 80-100 parts by weight is added into 500-800 parts by weight of ethanol, ultrasonic disperse 0.5-1h, thereto The MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride of 1-3 parts by weight is added, 0.5-1h is stirred in 70-80 DEG C of constant temperature waters, with Amino-terminated Polymethyl methacrylate and 0.1-0.5 the parts by weight dibenzoyl peroxide of 20-50 parts by weight, dimension are added afterwards Hold vacuum and normal pressure is risen to after 10-30min under 3000-4000Pa, under agitation polymerisation 8-24h, obtain gel production Thing, transfer them to CO2In supercritical drying device, using carbon dioxide as medium 30-50 degrees Celsius of temperature and air pressure 7- Supercritical drying 2-5h is carried out under 10MPa, you can obtain galapectite aeroge.
In the step 1, the amino-terminated Polymethyl methacrylate is weight average molecular weight 100000- The double end-blockings of 500000, contents of ethylene 0.1-20wt% amino or single end-blocking Polymethyl methacrylate.
In the step 1, galapectite is 85-90 parts by weight, and ethanol is 600-700 parts by weight, amino-terminated poly- first Base vinylsiloxane is 30-40 parts by weight, and dibenzoyl peroxide is 0.2-0.3 parts by weight.
In the step 1, vacuum is maintained to rise to normal pressure i.e. one naturally after 10-30min under 3200-3500Pa big Air pressure, polymerisation 10-20h, mixing speed are 100-150 turns per minute under agitation.
Step 2, the preparation of foam concrete
0.1-1 parts by weight protein foaming agents are added to 20-80 parts by weight of deionized water, stirring to generation stable foam And container bottom does not occur excreting water phenomenon, the protein foaming agent aqueous solution is obtained;5-30 parts by weight of cement, 1-20 parts by weight are given birth to Lime, 0.1-5 parts by weight gypsum, 5-60min is mixed, makes dry powder blend uniform, adds 20-60 parts by weight deionizations Water, 10-60min is mixed, obtains the mixture slurry of flow regime;Step 1 is obtained into 10-100 parts by weight aeroge, prepared Mixture slurry be mixed evenly with the protein foaming agent aqueous solution, that is, obtain foam concrete.
In step 2, protein foaming agent is saponin vegetable protein foaming agent.
In step 2,0.1-1 parts by weight protein foaming agents are added to 20-80 parts by weight of deionized water, stir 0.5- 3h, mixing speed are 100-150 revs/min, stir 1-20min under rotating speed 500-2000r/min afterwards.
In step 2, quick lime is calcareous quick lime, and dosage is 8-15 parts by weight.
In step 2, gypsum is plaster of Paris, and dosage is 1-4 parts by weight.
In step 2, cement is Portland cement, and PO strength grades are 42.5, and dosage is 10-20 parts by weight.
In step 2, by 5-30 parts by weight of cement, 1-20 weight parts of quicklime, 0.1-5 parts by weight gypsum, mix 20-40min, mixing speed are 100-150 turns per minute, make dry powder blend uniform, add 20-60 parts by weight of deionized water, 10-60min is mixed, mixing speed 500-800r/min, obtains the mixture slurry of flow regime.
In step 2, step 1 is obtained into 10-100 parts by weight aeroge, the mixture slurry and protein foaming agent that prepare When the aqueous solution is mixed evenly, mixing speed is 100-200 turns per minute, and mixing time is 1-10min.
Carry out in use, by obtained foam concrete slurry inject die trial in, the outer wall of die trial gently vibrate to Foam concrete slurry Self-leveling, self-compaction, it is 80- in humidity with doctor blade surface after foam concrete injection die trial Under the conditions of 90%, it is stripped after standing 24-48h under 20-25 degrees Celsius of normal temperature, is put into standard spray fog room and conserves 2-5 days (being 24 hours daily).
In order to verify that MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride is successfully loaded on galapectite, we are to modified Resultant product after galapectite sample cleans in cable type extractor according carries out infrared analysis.Fig. 1 is respectively galapectite, galapectite gas The FTIR spectrograms of gel, in Fig. 1 (a) spectrogram, in 3621cm-1And 3704cm-1Two narrow peaks be-OH stretching vibrations, this Two absworption peaks are belonging respectively to the two kinds of oh group contained in galapectite:Outer oh group and interior oh group, 1028cm-1There is the stretching vibration of Si-O keys in place, and this is the Typical silicates structure in galapectite, in 464cm-1And 545cm-1The absworption peak at place then belongs to the outer surface SiO of galapectite2The characteristic absorption peak of middle Si-O flexural vibrations, in addition in 898cm-1It is attached Near characteristic absorption then should be the characteristic absorption peak of Al-OH flexural vibrations;In the spectrogram of Fig. 1 (b) and galapectite aeroge, together There are Si-O keys in sample, in addition, in 2950cm-1There is C-H characteristic peaks, while 1273cm-1The appearance at place peak indicates modification Appearance-CH in galapectite3, 1427cm-1There is expression and occurs that alkane structure, 3510cm in place-1The corresponding N-H in place stretching vibration Peak, 3704cm-1It is due to that-the OH at this can be with methylacryoyloxyethyl trimethyl ammonia chloride that the peak at place, which drastically weakens even disappearance, - NH in ammonium2Reaction have passed through extracting and remove unreacted MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, with the appearance of superiors Absolutely prove that MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride is loaded on galapectite.
Fig. 2 is the thermogravimetric curve of galapectite and galapectite aeroge, and galapectite has two weightless steps, in 110-150 Between DEG C, there is obvious weightlessness, should be the intermolecular free water of galapectite absorption, 450-550 DEG C of weightlessness for galapectite in itself Decompose, two benches total weight loss is 20%;Compared to galapectite, galapectite aeroge is without the weightlessness of its first stage, this explanation Modified galapectite aeroge hydrophobicity enhancing, is not easy to adsorb water;At 200-400 DEG C, the weightlessness of galapectite aeroge is to connect The decomposed of branch MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride, 450-550 DEG C of weightlessness are intermolecular for galapectite itself Water decomposition, it is MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride decomposed at 600-800 DEG C, its total weight loss is 40%;This two The difference of the mass percent of kind sample is the mass ratio of the galapectite in grafting, and this illustrates methylacryoyloxyethyl trimethyl Ammonium chloride has successfully been supported on galapectite.
Galapectite aeroge to be observed by SEM, such as Fig. 3, galapectite is in homogeneously dispersed state, There are the aeroge halloysite nanotubes to connect the three-dimensional net structure to be formed, and nano level cavity distribution is more uniform.
Technical solution of the present invention is first with MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride positively charged characteristic, with galapectite The electronegative SiO of nanotube inner wall layer2Mutually attract, and be copolymerized by double bond, so as to which galapectite nanometer be together in series, made The standby galapectite aeroge with tridimensional network, then using foam concrete preparation method, a kind of high intensity is made and protects Adiabator.
Brief description of the drawings
Fig. 1 is the FTIR spectrum figure of product in the present invention, and wherein a is galapectite;B is galapectite aeroge.
Fig. 2 is the TG figures of galapectite and galapectite aeroge.
Fig. 3 is that the SEM of galapectite aeroge schemes.
Embodiment
Technical scheme is further illustrated with reference to specific embodiment.Protein foaming agent is saponin plant Protein foaming agent, quick lime are calcareous quick lime, and gypsum is plaster of Paris, and cement is Portland cement, PO intensity etc. Level is 42.5.Selection ultrasound or stirring are disperseed in the following embodiments, and mixing speed is 100-200 turns/min, and can Adjusted according to actual conditions, ultrasonic disperse gives adjustment according to system situation.
Embodiment 1
80g galapectite is added into 800g ethanol, ultrasonic disperse 0.5h, add 3g methacryloxypropyl thereto Ethyl-trimethyl salmiac, 0.6h is stirred in 70 DEG C of constant temperature waters, it is 100000, ethene then to add 20g weight average molecular weight The amino list that base content is 20%wt blocks Polymethyl methacrylate and 0.1g dibenzoyl peroxides, maintains vacuum to exist Normal pressure is risen under 3600Pa after 10min, under agitation polymerisation 8h, obtain gel-like product, transfer them to CO2It is overcritical 2h is dried in drying device, 0.1g protein foaming agents are added to 80g deionized waters, 3h is stirred, 0.1g protein is foamed The agent aqueous solution stirs 1min under rotating speed 500r/min, does not occur excreting water phenomenon to generation stable foam and container bottom, by 30g Cement, 1g lime, 5g gypsum, 60min is mixed, makes dry powder blend uniform, adds 60g deionized waters, mixed 10min, the mixture slurry of flow regime being obtained, step 1 is obtained into 10g aeroges, mixture slurry and foams mix stirs 1min, Then obtained foam concrete slurry is injected in die trial, gently vibrates to foam concrete slurry and flow automatically in the outer wall of die trial Flat, self-compaction, after foam concrete injection die trial, with doctor blade surface, under the conditions of humidity is 90%, normal temperature stands 24h After be stripped, be put into standard spray fog room and conserve 2 days.
Embodiment 2
90g galapectite is added into 500g ethanol, ultrasonic disperse 0.6h, add 2g methacryloxypropyl thereto Ethyl-trimethyl salmiac, 0.7h is stirred in 80 DEG C of constant temperature waters, it is 500000, ethene then to add 25g weight average molecular weight The double end-blocking Polymethyl methacrylates of amino and 0.2g dibenzoyl peroxides that base content is 0.1%wt, maintain vacuum Normal pressure is risen to after 15min under 3200Pa, under agitation polymerisation 9h, obtain gel-like product, transfer them to CO2It is super to face 3h is dried in boundary's drying device, 0.5g protein foaming agents are added to 40g deionized waters, 1.5h is stirred, 1g protein is sent out The infusion aqueous solution stirs 15min under rotating speed 600r/min, does not occur excreting water phenomenon to generation stable foam and container bottom, will 25g cement, 15g lime, 0.1g gypsum, 5min is mixed, makes dry powder blend uniform, adds 34g deionized waters, mixing is stirred 32min is mixed, obtains the mixture slurry of flow regime, step 1 is obtained into 30g aeroges, mixture slurry and foams mix stirs 2min, then obtained foam concrete slurry is injected in die trial, gently vibrate to foam concrete and starch in the outer wall of die trial Body Self-leveling, self-compaction, after foam concrete injection die trial, with doctor blade surface, under the conditions of humidity is 80%, normal temperature is quiet It is stripped after putting 36h, is put into standard spray fog room and conserves 3 days.
Embodiment 3
100g galapectite is added into 550g ethanol, ultrasonic disperse 1h, add 1g methacryloxypropyl thereto Ethyl-trimethyl salmiac, 0.8h is stirred in 75 DEG C of constant temperature waters, it is 200000, ethene then to add 50g weight average molecular weight The double end-blocking Polymethyl methacrylates of amino and 0.5g dibenzoyl peroxides that base content is 10%wt, maintain vacuum to exist Normal pressure is risen under 3100Pa after 20min, under agitation polymerisation 12h, obtain gel-like product, transfer them to CO2It is super to face 5h is dried in boundary's drying device, 0.3g protein foaming agents are added to 30g deionized waters, 0.5h are stirred, by 0.5g protein Foaming agent water solution stirs 16min under rotating speed 700r/min, does not occur excreting water phenomenon to generation stable foam and container bottom, By 20g cement, 11g lime, 1.5g gypsum, 32min is mixed, makes dry powder blend uniform, adds 20g deionized waters, mixed Stirring 47min is closed, obtains the mixture slurry of flow regime, step 1 is obtained into 50g aeroges, mixture slurry and foams mix stirs 10min is mixed, then obtained foam concrete slurry is injected in die trial, gently vibrated to foam concrete in the outer wall of die trial Slurry Self-leveling, self-compaction, after foam concrete injection die trial, with doctor blade surface, under the conditions of humidity is 85%, normal temperature It is stripped after standing 48h, is put into standard spray fog room and conserves 4 days.
Embodiment 4
95g galapectite is added into 600g ethanol, ultrasonic disperse 0.8h, add 1.5g methacryl thereto Oxy-ethyl-trimethyl salmiac, 1h is stirred in 76 DEG C of constant temperature waters, it is 300000, ethene then to add 40g weight average molecular weight The amino list that base content is 15%wt blocks Polymethyl methacrylate and 0.25g dibenzoyl peroxides, maintains vacuum Normal pressure is risen to after 23min under 3000Pa, under agitation polymerisation 24h, obtain gel-like product, transfer them to CO2It is super 2.5h is dried in critical drying device, 0.6g protein foaming agents are added to 20g deionized waters, 2.5h are stirred, by 0.6g eggs White matter foaming agent water solution stirs 20min under rotating speed 2000r/min, does not occur bleeding to generation stable foam and container bottom Phenomenon, by 10g cement, 20g lime, 1.9g gypsum, 57min is mixed, makes dry powder blend uniform, adds 24g deionizations Water, 60min is mixed, obtains the mixture slurry of flow regime, step 1 is obtained into 70g aeroges, mixture slurry and foam mixes Stirring 9min is closed, then obtained foam concrete slurry is injected in die trial, gently vibrates to foam and mixes in the outer wall of die trial Solidifying soil paste body Self-leveling, self-compaction, after foam concrete injection die trial, with doctor blade surface, under the conditions of humidity is 83%, Normal temperature is stripped after standing 25h, is put into standard spray fog room and is conserved 5 days.
Embodiment 5
85g galapectite is added into 650g ethanol, ultrasonic disperse 0.7h, add 2.5g methacryl thereto Oxy-ethyl-trimethyl salmiac, 0.5h is stirred in 79 DEG C of constant temperature waters, it is 400000, second then to add 45g weight average molecular weight The double end-blocking Polymethyl methacrylates of amino and 0.3g dibenzoyl peroxides that amount vinyl content is 5%wt, maintain vacuum Normal pressure is risen to after 30min under 4000Pa, under agitation polymerisation 13h, obtain gel-like product, transfer them to CO2It is super 3.1h is dried in critical drying device, 1g protein foaming agents are added to 50g deionized waters, 2.7h are stirred, by 0.8g albumen Matter foaming agent water solution stirs 18min under rotating speed 1500r/min, does not occur bleeding to generation stable foam and container bottom and shows As, by 5g cement, 13g lime, 2.7g gypsum, 25min is mixed, makes dry powder blend uniform, adds 43g deionized waters, 55min is mixed, the mixture slurry of flow regime is obtained, step 1 is obtained into 100g aeroges, mixture slurry and foams mix 7min is stirred, then obtained foam concrete slurry is injected in die trial, gently vibrated to foam coagulation in the outer wall of die trial Soil paste body Self-leveling, self-compaction, after foam concrete injection die trial, with doctor blade surface, under the conditions of humidity is 84%, often Temperature is stripped after standing 38h, is put into standard spray fog room and is conserved 2.5 days.
Concrete sample prepared by above-described embodiment is tested (through maintenance), is had through Bei Shide instruments scientific and technological (Beijing) The N2 adsorption specific surface area measuring instrument measure of limit company, the porosity of concrete prepared by this method is 92-96%, preferably 94- 95%, even aperture distribution, the hole that the mean free path (about 70nm) of gas molecule motion is more than galapectite aeroge is straight Footpath 30-50nm, the results are shown in Table 1.Using Xi'an Xiatech Electronic Technology Co., Ltd. TC3000E types thermal conductivity factor instrument to our legal system Standby concrete is tested, and the results are shown in Table 1, and concrete has extremely low heat conductivility, embodies very high thermal insulation, average Thermal conductivity factor is up to 0.01-0.05W/ (mK).It is used as building heat preservation walling unit in view of concrete, goes out from structural requirement Come, the test of compression strength is carried out according to GB50107-2010, the results are shown in Table 1, obtained foam concrete has good Compressive property, it is average up to 150-260MPa.The concrete of the above-mentioned property test specification present invention is keeping preferable crushing resistance While energy, porosity and thermal conductivity factor have been taken into account, has turned into building thermal insulation material, i.e., concrete of the invention is as building heat preservation The application of material, as building heat preservation walling unit.
The porosity of table 1, thermal conductivity factor and compressive property
Embodiment Porosity/(%) Thermal conductivity factor/(W/ (mK)) Compression strength/(MPa)
Embodiment 1 90 0.01 150
Embodiment 2 95 0.04 180
Embodiment 3 93 0.03 160
Embodiment 4 92 0.04 260
Embodiment 5 93 0.05 200
Technological parameter according to technical solution of the present invention is adjusted the foam concrete that can obtain the present invention, and table Reveal essentially identical property.
Exemplary description has been done to the present invention above, it should explanation, in the situation for the core for not departing from the present invention Under, any simple deformation, modification or other skilled in the art can not spend the equivalent substitution of creative work equal Fall into protection scope of the present invention.

Claims (10)

1. a kind of high-intensity heat insulating material, it is characterised in that the porosity of concrete is 92-96%, and mean coefficient of heat conductivity is reachable 0.01-0.05W/ (mK), compressive property is average up to 150-250MPa, carries out as steps described below:
Step 1, the preparation of galapectite aeroge
The galapectite of 80-100 parts by weight is added into 500-800 parts by weight of ethanol, ultrasonic disperse 0.5-1h, added thereto The MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride of 1-3 parts by weight, 0.5-1h is stirred in 70-80 DEG C of constant temperature waters, then added Enter amino-terminated Polymethyl methacrylate and 0.1-0.5 the parts by weight dibenzoyl peroxide of 20-50 parts by weight, remain true Reciprocal of duty cycle rises to normal pressure after 10-30min under 3000-4000Pa, under agitation polymerisation 8-24h, obtains gel-like product, will It is transferred to CO2It is medium in 30-50 degrees Celsius of temperature and 7-10MPa of air pressure using carbon dioxide in supercritical drying device Lower progress supercritical drying 2-5h, you can obtain galapectite aeroge;In the step 1, the amino-terminated poly- methyl second Alkenyl siloxane is weight average molecular weight 100000-500000, the contents of ethylene 0.1-20wt% double end-blockings of amino or single end-blocking Polymethyl methacrylate;
Step 2, the preparation of foam concrete
0.1-1 parts by weight protein foaming agents are added to 20-80 parts by weight of deionized water, stirring to generation stable foam and appearance Device bottom does not occur excreting water phenomenon, obtains the protein foaming agent aqueous solution;By 5-30 parts by weight of cement, 1-20 parts by weight life stone Ash, 0.1-5 parts by weight gypsum, 5-60min is mixed, makes dry powder blend uniform, adds 20-60 parts by weight of deionized water, 10-60min is mixed, obtains the mixture slurry of flow regime;By step 1 obtain 10-100 parts by weight aeroge, prepare Mixture slurry is mixed evenly with the protein foaming agent aqueous solution, that is, obtains foam concrete;In step 2, protein is sent out Infusion is saponin vegetable protein foaming agent, and quick lime is calcareous quick lime, and gypsum is plaster of Paris, and cement is normal silicate Cement, PO strength grades are 42.5.
2. a kind of high-intensity heat insulating material according to claim 1, it is characterised in that in the step 1, galapectite is 85-90 parts by weight, ethanol are 600-700 parts by weight, and amino-terminated Polymethyl methacrylate is 30-40 parts by weight, mistake Oxidation dibenzoyl is 0.2-0.3 parts by weight.
3. a kind of high-intensity heat insulating material according to claim 1, it is characterised in that in the step 1, maintain vacuum Degree rises to a normal pressure i.e. atmospheric pressure naturally after 10-30min under 3200-3500Pa, and polymerisation 10-20h, is stirred under agitation Speed is mixed as 100-150 turns per minute.
4. a kind of high-intensity heat insulating material according to claim 1, it is characterised in that in step 2, by 0.1-1 weight Part protein foaming agent is added to 20-80 parts by weight of deionized water, stirs 0.5-3h, and mixing speed is 100-150 revs/min, Afterwards 1-20min is stirred under rotating speed 500-2000r/min;Quick lime is calcareous quick lime, and dosage is 8-15 parts by weight;Stone Cream is plaster of Paris, and dosage is 1-4 parts by weight;Cement is Portland cement, and PO strength grades are 42.5, and dosage is 10-20 parts by weight.
5. a kind of high-intensity heat insulating material according to claim 1, it is characterised in that in step 2, by 5-30 parts by weight Cement, 1-20 weight parts of quicklime, 0.1-5 parts by weight gypsum, mix 20-40min, mixing speed be per minute 100- 150 turns, make dry powder blend uniform, add 20-60 parts by weight of deionized water, mix 10-60min, mixing speed is 500-800r/min, obtain the mixture slurry of flow regime;Step 1 is obtained into 10-100 parts by weight aeroge, the mixing prepared When slurry is mixed evenly with the protein foaming agent aqueous solution, mixing speed is 100-200 turns per minute, and mixing time is 1—10min。
6. a kind of preparation method of high-intensity heat insulating material, it is characterised in that carry out as steps described below:
Step 1, the preparation of galapectite aeroge
The galapectite of 80-100 parts by weight is added into 500-800 parts by weight of ethanol, ultrasonic disperse 0.5-1h, added thereto The MethacryloyloxyethylTrimethyl Trimethyl Ammonium Chloride of 1-3 parts by weight, 0.5-1h is stirred in 70-80 DEG C of constant temperature waters, then added Enter amino-terminated Polymethyl methacrylate and 0.1-0.5 the parts by weight dibenzoyl peroxide of 20-50 parts by weight, remain true Reciprocal of duty cycle rises to normal pressure after 10-30min under 3000-4000Pa, under agitation polymerisation 8-24h, obtains gel-like product, will It is transferred to CO2It is medium in 30-50 degrees Celsius of temperature and 7-10MPa of air pressure using carbon dioxide in supercritical drying device Lower progress supercritical drying 2-5h, you can obtain galapectite aeroge;In the step 1, the amino-terminated poly- methyl second Alkenyl siloxane is weight average molecular weight 100000-500000, the contents of ethylene 0.1-20wt% double end-blockings of amino or single end-blocking Polymethyl methacrylate;
Step 2, the preparation of foam concrete
0.1-1 parts by weight protein foaming agents are added to 20-80 parts by weight of deionized water, stirring to generation stable foam and appearance Device bottom does not occur excreting water phenomenon, obtains the protein foaming agent aqueous solution;By 5-30 parts by weight of cement, 1-20 parts by weight life stone Ash, 0.1-5 parts by weight gypsum, 5-60min is mixed, makes dry powder blend uniform, adds 20-60 parts by weight of deionized water, 10-60min is mixed, obtains the mixture slurry of flow regime;By step 1 obtain 10-100 parts by weight aeroge, prepare Mixture slurry is mixed evenly with the protein foaming agent aqueous solution, that is, obtains foam concrete;In step 2, protein is sent out Infusion is saponin vegetable protein foaming agent, and quick lime is calcareous quick lime, and gypsum is plaster of Paris, and cement is normal silicate Cement, PO strength grades are 42.5.
7. the preparation method of a kind of high-intensity heat insulating material according to claim 6, it is characterised in that in the step 1 In, galapectite is 85-90 parts by weight, and ethanol is 600-700 parts by weight, amino-terminated Polymethyl methacrylate is 30- 40 parts by weight, dibenzoyl peroxide are 0.2-0.3 parts by weight;Maintain vacuum after 10-30min under 3200-3500Pa from A normal pressure i.e. atmospheric pressure so is risen to, under agitation polymerisation 10-20h, mixing speed is 100-150 turns per minute.
8. the preparation method of a kind of high-intensity heat insulating material according to claim 6, it is characterised in that in step 2, will 0.1-1 parts by weight protein foaming agents are added to 20-80 parts by weight of deionized water, stir 0.5-3h, and mixing speed is 100- 150 revs/min, stir 1-20min under rotating speed 500-2000r/min afterwards;Quick lime is calcareous quick lime, dosage is 8- 15 parts by weight;Gypsum is plaster of Paris, and dosage is 1-4 parts by weight;Cement is Portland cement, and PO strength grades are 42.5, dosage is 10-20 parts by weight.
9. the preparation method of a kind of high-intensity heat insulating material according to claim 6, it is characterised in that in step 2, will 5-30 parts by weight of cement, 1-20 weight parts of quicklime, 0.1-5 parts by weight gypsum, 20-40min is mixed, mixing speed is every 100-150 turns of minute, make dry powder blend uniform, add 20-60 parts by weight of deionized water, mix 10-60min, stirring Speed is 500-800r/min, obtains the mixture slurry of flow regime;Step 1 is obtained into 10-100 parts by weight aeroge, prepared Mixture slurry and the protein foaming agent aqueous solution when being mixed evenly, mixing speed is 100-200 turns per minute, stirring Time is 1-10min.
10. application of the high-intensity heat insulating material as claimed in claim 1 as building thermal insulation material, it is characterised in that be used as Building heat preservation walling unit, in obtained foam concrete slurry injection die trial, gently vibrate to foam and mix in the outer wall of die trial Solidifying soil paste body Self-leveling, self-compaction, it is 80-90% conditions in humidity with doctor blade surface after foam concrete injection die trial Under, under 20-25 degrees Celsius of normal temperature stand 24-48h after be stripped, be put into standard spray fog room conserve 2-5 days (be daily 24 Hour).
CN201610475315.0A 2016-06-21 2016-06-21 A kind of high-intensity heat insulating material and preparation method thereof Pending CN107522503A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109575510A (en) * 2018-12-12 2019-04-05 河北工业大学 A kind of preparation method of nanofiber mineral enhancing phenolic resin three-dimensional aerogel material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515827A (en) * 2011-12-08 2012-06-27 天津市裕川环境科技有限公司 Method for preparing light foam concrete by using compound protein foaming agent
CN105565774A (en) * 2015-05-11 2016-05-11 天津城建大学 High-strength high-thermal-insulation silica aerogel and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102515827A (en) * 2011-12-08 2012-06-27 天津市裕川环境科技有限公司 Method for preparing light foam concrete by using compound protein foaming agent
CN105565774A (en) * 2015-05-11 2016-05-11 天津城建大学 High-strength high-thermal-insulation silica aerogel and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李书进: "《土木工程材料(第2版)》", 31 August 2014, 重庆大学出版社 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109575510A (en) * 2018-12-12 2019-04-05 河北工业大学 A kind of preparation method of nanofiber mineral enhancing phenolic resin three-dimensional aerogel material
CN109575510B (en) * 2018-12-12 2021-04-20 河北工业大学 Preparation method of nanofiber mineral reinforced phenolic resin three-dimensional aerogel material

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Application publication date: 20171229