CN113735618A - High-performance core filling material, preparation method and application of high-performance core filling material in preparation of core foamed concrete insulating brick - Google Patents
High-performance core filling material, preparation method and application of high-performance core filling material in preparation of core foamed concrete insulating brick Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 75
- 239000011449 brick Substances 0.000 title claims abstract description 59
- 239000011381 foam concrete Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims description 24
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000006260 foam Substances 0.000 claims abstract description 35
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 claims abstract description 34
- 150000002978 peroxides Chemical class 0.000 claims abstract description 33
- 229940080313 sodium starch Drugs 0.000 claims abstract description 33
- 239000004568 cement Substances 0.000 claims abstract description 29
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- 239000003381 stabilizer Substances 0.000 claims abstract description 22
- 239000004088 foaming agent Substances 0.000 claims abstract description 20
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 16
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 16
- 239000001110 calcium chloride Substances 0.000 claims abstract description 16
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 16
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 16
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 16
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 229920006389 polyphenyl polymer Polymers 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 18
- CKNYEUXAXWTAPK-UHFFFAOYSA-N 4-octoxy-4-oxobutanoic acid Chemical compound CCCCCCCCOC(=O)CCC(O)=O CKNYEUXAXWTAPK-UHFFFAOYSA-N 0.000 claims description 14
- 238000005187 foaming Methods 0.000 claims description 12
- 239000011464 hollow brick Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000004156 Azodicarbonamide Substances 0.000 claims description 6
- 239000011398 Portland cement Substances 0.000 claims description 6
- 150000001408 amides Chemical class 0.000 claims description 6
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical group NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 claims description 6
- 235000019399 azodicarbonamide Nutrition 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 3
- 239000012074 organic phase Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000004604 Blowing Agent Substances 0.000 claims 1
- 239000000945 filler Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 72
- 230000000052 comparative effect Effects 0.000 description 27
- 230000000694 effects Effects 0.000 description 13
- 230000001976 improved effect Effects 0.000 description 9
- 230000002195 synergetic effect Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- KZZKOVLJUKWSKX-UHFFFAOYSA-N cyclobutanamine Chemical compound NC1CCC1 KZZKOVLJUKWSKX-UHFFFAOYSA-N 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940032147 starch Drugs 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions 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
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a high-performance core filling material, which comprises the following raw materials: cement, polyphenyl particles, fly ash, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer, diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide, sodium starch octylsuccinate, hydrogen peroxide and water; the core filling material is prepared by the steps of preparing slurry, preparing foam liquid, mixing raw materials and the like. The core foam concrete insulating brick prepared by the core filling material has excellent heat insulation and compressive strength, wherein the heat transfer coefficient K is 0.25-0.31W/square meter K, the average value of the compressive strength is 7.92-8.21MPa, and the core foam concrete insulating brick can meet the requirements of market popularization and application.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of building materials, in particular to a high-performance core filling material, a preparation method and application thereof in preparation of core foamed concrete insulating bricks.
[ background of the invention ]
The existing heat-insulating composite brick or building block mainly has various forms of embedding heat-insulating material, setting heat-insulating sandwich layer or heat-insulating hole and channel, etc. The baking-free foamed brick as one of the house heat insulating materials is more and more popular among people because the baking-free foamed brick has better heat insulating, sound insulating, fireproof and strength than the traditional heat insulating materials.
The Chinese patent document "core foaming concrete insulating brick and its preparation method (publication number: CN 104310882A)" discloses a cement foaming material (core filling material) comprising: 30-40 parts of cement, 1-2 parts of water reducing agent, 1-2 parts of calcium chloride, 0.5-1 part of aluminum sulfate, 0.1-1 part of foam stabilizer, 20-25 parts of hydrogen peroxide, 1-2 parts of sodium sulfate and 200 parts of water 150. The cement foaming material and the hollow brick body are well solidified and condensed together, and the prepared core foaming concrete insulating brick is durable. However, the cement foaming material (core filling material) has the problems of poor performance and the like, and in order to meet the requirements of market popularization and application, improvement is urgently needed to improve the product performance.
[ summary of the invention ]
The invention provides a high-performance core filling material, a preparation method and application thereof in preparation of core foamed concrete insulating bricks, and aims to solve the problems of poor performance and the like of a cement foamed material (core filling material) prepared in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a high-performance core filling material comprises the following raw materials in parts by weight: 50-70 parts of cement, 18-30 parts of polyphenyl granules, 6-10 parts of fly ash, 1.2-2 parts of aluminum sulfate, 1.8-3.2 parts of calcium chloride, 2.3-3.8 parts of sodium sulfate, 2.2-2.6 parts of a water reducing agent, 0.3-0.5 part of a foaming agent, 0.2-0.4 part of a foam stabilizer, 1.5-2.6 parts of diisopropyl peroxydicarbonate, 2.4-3.5 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.1-1.3 parts of 2, 2-dihydropropane peroxide, 3.6-4.3 parts of sodium starch octylsuccinate, 8-14 parts of hydrogen peroxide and 350 parts of water 260-soluble organic phase.
Further, the high-performance core filling material comprises the following raw materials in parts by weight: 62 parts of cement, 25 parts of polyphenyl particles, 9 parts of fly ash, 1.5 parts of aluminum sulfate, 2.6 parts of calcium chloride, 3 parts of sodium sulfate, 2.5 parts of a water reducing agent, 0.4 part of a foaming agent, 0.3 part of a foam stabilizer, 2 parts of diisopropyl peroxydicarbonate, 3 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.2 parts of 2, 2-dihydropropane peroxide, 4 parts of sodium starch octyl succinate, 12 parts of hydrogen peroxide and 300 parts of water.
Further, the cement is portland cement.
Further, the water reducing agent is a sodium lignosulfonate water reducing agent.
Further, the foaming agent is azodicarbonamide.
Further, the foam stabilizer is silicone amide.
Further, the mass concentration of the hydrogen peroxide is 26-30%.
The invention also provides a preparation method of the high-performance core filling material, which comprises the following steps:
(1) stirring cement, fly ash and water in parts by weight for 10-16min at the rotating speed of 400-600r/min to prepare slurry;
(2) stirring polyphenyl particles, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer and hydrogen peroxide in parts by weight for 1.4-2.3 hours at the temperature of 60-65 ℃ and the rotating speed of 200-300r/min to prepare a foam liquid;
(3) and (3) mixing the slurry prepared in the step (1), the foam liquid prepared in the step (2), diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octyl succinate, and stirring for 1.8-2.8h at the temperature of 74-78 ℃ and the rotating speed of 200-400r/min to prepare the high-performance core filling material.
The invention also provides an application of the high-performance core filling material in preparation of the core foamed concrete insulating brick, and the core foamed concrete insulating brick comprises a hollow brick serving as a brick body shell and the high-performance core filling material filled in a brick body cavity.
Further, the preparation method of the core foamed concrete insulating brick comprises the following steps:
s1: preparing a hollow brick;
s2: preparing a core filling material;
s3: and (4) preparing the insulating brick, filling the core filling material prepared in the step S2 into the cavity of the hollow brick prepared in the step S1, and hardening to prepare the core foaming concrete insulating brick.
The invention has the following beneficial effects:
(1) in the invention, 3-N-tert-butoxycarbonylamino cyclobutylamine and 2, 2-dihydropropane peroxide react under the initiation of diisopropyl peroxydicarbonate at a proper rotating speed and temperature to generate a colloid, and the generated colloid is bonded and cured with sodium starch octyl succinate, so that the average compressive strength of the core-foamed concrete insulating brick is synergistically improved.
(2) As can be seen from the comparison of the heat transfer coefficient K value and the average value of the compressive strength of the heat-insulating brick in the embodiment 2 and the comparative example 6, the difference between the heat transfer coefficient K value and the average value of the compressive strength of the obtained core-foamed concrete heat-insulating brick is not large. However, as can be seen from comparison of the heat transfer coefficient K value and the average value of compressive strength of the comparative example 6 and the comparative example 7, the heat transfer coefficient K value is reduced by 27.8%, and the average value of compressive strength is improved by 28.8%, while the difference between the comparative example 6 and the comparative example 7 is the core filling material, which shows that the performance of the core filling material of the invention is obviously improved due to the performance of the core filling material (cement foaming material) prepared by the prior art (the comparative example 7), and shows that the technology of the invention has obvious progress compared with the prior art.
(3) The core foam concrete insulating brick prepared by the core filling material has excellent heat insulation and compressive strength, wherein the heat transfer coefficient K is 0.25-0.31W/square meter K, the average value of the compressive strength is 7.92-8.21MPa, and the requirements of market popularization and application are met.
[ description of the drawings ]
FIG. 1 is a top view of a hollow brick of a core foamed concrete insulating brick shell;
FIG. 2 is a perspective view of a hollow brick of a core foamed concrete insulating brick shell;
FIG. 3 is a diagram of a core-foamed concrete insulating brick product made of the core filling material obtained in example 2.
[ detailed description ] embodiments
In order to facilitate a better understanding of the invention, the following examples are given to illustrate, but not to limit the scope of the invention.
In an embodiment, the high-performance core filling material comprises the following raw materials in parts by weight: 50-70 parts of cement, 18-30 parts of polyphenyl granules, 6-10 parts of fly ash, 1.2-2 parts of aluminum sulfate, 1.8-3.2 parts of calcium chloride, 2.3-3.8 parts of sodium sulfate, 2.2-2.6 parts of a water reducing agent, 0.3-0.5 part of a foaming agent, 0.2-0.4 part of a foam stabilizer, 1.5-2.6 parts of diisopropyl peroxydicarbonate, 2.4-3.5 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.1-1.3 parts of 2, 2-dihydropropane peroxide, 3.6-4.3 parts of sodium starch octyl succinate, 8-14 parts of hydrogen peroxide and 350 parts of water 260-soluble organic phase;
the cement is portland cement;
the water reducing agent is a sodium lignosulphonate water reducing agent;
the foaming agent is azodicarbonamide;
the foam stabilizer is silicone amide;
the mass concentration of the hydrogen peroxide is 26-30%;
the preparation method of the high-performance core filling material comprises the following steps:
(1) stirring cement, fly ash and water in parts by weight for 10-16min at the rotating speed of 400-600r/min to prepare slurry;
(2) stirring polyphenyl particles, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer and hydrogen peroxide in parts by weight for 1.4-2.3 hours at the temperature of 60-65 ℃ and the rotating speed of 200-300r/min to prepare a foam liquid;
(3) and (3) mixing the slurry prepared in the step (1), the foam liquid prepared in the step (2), diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octyl succinate, and stirring for 1.8-2.8h at the temperature of 74-78 ℃ and the rotating speed of 200-400r/min to prepare the high-performance core filling material.
The present invention is illustrated by the following more specific examples.
Example 1
The high-performance core filling material comprises the following raw materials in parts by weight: 52 parts of cement, 20 parts of polyphenyl particles, 7 parts of fly ash, 1.2 parts of aluminum sulfate, 2 parts of calcium chloride, 2.3 parts of sodium sulfate, 2.2 parts of a water reducing agent, 0.3 part of a foaming agent, 0.2 part of a foam stabilizer, 1.6 parts of diisopropyl peroxydicarbonate, 2.5 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.1 parts of 2, 2-dihydropropane peroxide, 3.7 parts of sodium starch octyl succinate, 8 parts of hydrogen peroxide and 270 parts of water;
the cement is portland cement;
the water reducing agent is a sodium lignosulphonate water reducing agent;
the foaming agent is azodicarbonamide;
the foam stabilizer is silicone amide;
the mass concentration of the hydrogen peroxide is 27%;
the preparation method of the high-performance core filling material comprises the following steps:
(1) stirring cement, fly ash and water in parts by weight for 16min at the rotating speed of 400r/min to prepare slurry;
(2) stirring polyphenyl particles, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer and hydrogen peroxide in parts by weight for 2.3 hours at the temperature of 60 ℃ and the rotating speed of 200r/min to prepare a foam liquid;
(3) and (3) mixing the slurry prepared in the step (1), the foam liquid prepared in the step (2), diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octyl succinate, and stirring for 2.8 hours at the temperature of 74 ℃ and the rotating speed of 200r/min to prepare the high-performance core filling material.
Example 2
The high-performance core filling material comprises the following raw materials in parts by weight: 62 parts of cement, 25 parts of polyphenyl particles, 9 parts of fly ash, 1.5 parts of aluminum sulfate, 2.6 parts of calcium chloride, 3 parts of sodium sulfate, 2.5 parts of a water reducing agent, 0.4 part of a foaming agent, 0.3 part of a foam stabilizer, 2 parts of diisopropyl peroxydicarbonate, 3 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.2 parts of 2, 2-dihydropropane peroxide, 4 parts of sodium starch octyl succinate, 12 parts of hydrogen peroxide and 300 parts of water;
the cement is portland cement;
the water reducing agent is a sodium lignosulphonate water reducing agent;
the foaming agent is azodicarbonamide;
the foam stabilizer is silicone amide;
the mass concentration of the hydrogen peroxide is 28%;
the preparation method of the high-performance core filling material comprises the following steps:
(1) stirring cement, fly ash and water in parts by weight for 14min at the rotating speed of 500r/min to prepare slurry;
(2) stirring polyphenyl particles, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer and hydrogen peroxide in parts by weight for 2 hours at the temperature of 63 ℃ and the rotating speed of 300r/min to prepare a foam liquid;
(3) and (3) mixing the slurry prepared in the step (1), the foam liquid prepared in the step (2), diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octyl succinate, and stirring for 2.5 hours at the temperature of 76 ℃ and the rotating speed of 300r/min to prepare the high-performance core filling material.
Example 3
The high-performance core filling material comprises the following raw materials in parts by weight: 68 parts of cement, 27 parts of polyphenyl particles, 10 parts of fly ash, 2 parts of aluminum sulfate, 3 parts of calcium chloride, 3.6 parts of sodium sulfate, 2.5 parts of a water reducing agent, 0.5 part of a foaming agent, 0.4 part of a foam stabilizer, 2.5 parts of diisopropyl peroxydicarbonate, 3.4 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.3 parts of 2, 2-dihydropropane peroxide, 4.2 parts of sodium starch octyl succinate, 14 parts of hydrogen peroxide and 340 parts of water;
the cement is portland cement;
the water reducing agent is a sodium lignosulphonate water reducing agent;
the foaming agent is azodicarbonamide;
the foam stabilizer is silicone amide;
the mass concentration of the hydrogen peroxide is 30 percent;
the preparation method of the high-performance core filling material comprises the following steps:
(1) stirring cement, fly ash and water in parts by weight for 10min at the rotating speed of 600r/min to prepare slurry;
(2) stirring polyphenyl particles, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer and hydrogen peroxide in parts by weight for 1.4 hours at the temperature of 65 ℃ and the rotating speed of 300r/min to prepare a foam liquid;
(3) and (3) mixing the slurry prepared in the step (1), the foam liquid prepared in the step (2), diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octyl succinate, and stirring at the temperature of 78 ℃ and the rotating speed of 400r/min for 1.8h to prepare the high-performance core filling material.
Comparative example 1
The procedure was essentially the same as in example 2 except that the core material was prepared from starting materials lacking diisopropyl peroxydicarbonate, 3-N-t-butoxycarbonyl cyclobutylamine, 2-dihydropropane peroxide, and sodium starch octylsuccinate.
Comparative example 2
Essentially the same procedure as in example 2 was followed except that the core-filling material was prepared in the absence of diisopropyl peroxydicarbonate.
Comparative example 3
The procedure was essentially the same as that used in example 2, except that 3-N-t-butoxycarbonyl cyclobutylamine was absent from the starting material used to prepare the core-fill material.
Comparative example 4
The procedure was essentially the same as in example 2, except that the core material was prepared in the absence of 2, 2-dihydroperoxide propane.
Comparative example 5
Essentially the same procedure as in example 2 was followed except that the core-filling material was prepared from a starting material lacking sodium starch octyl succinate.
Comparative example 6
The core-foamed concrete insulating brick is prepared by the process of example 2 in the Chinese patent document 'core-foamed concrete insulating brick and its preparation method (publication number: CN 104310882A)', except that the core filling material (cement foaming material) of the patent document is replaced by the core filling material of example 2 of the invention.
Comparative example 7
The core foamed concrete insulating brick is prepared by adopting the process of the example 2 in the Chinese patent document 'core foamed concrete insulating brick and the preparation method thereof (publication number: CN 104310882A)'.
The application of the core filling material in the preparation of the core foaming concrete insulating brick comprises the following steps:
the core foamed concrete insulating brick comprises a hollow brick (shown in figures 1 and 2, and the specification is 390mm multiplied by 190mm) serving as a brick body shell, and a core filling material prepared in examples 1-3 and comparative examples 1-5 is filled in a brick body cavity, and the preparation method of the core foamed concrete insulating brick comprises the following steps:
s1: preparing a hollow brick;
s2: preparing a core filling material;
s3: and (3) preparing an insulating brick, filling the core filling material prepared in the step S2 into the cavity of the hollow brick prepared in the step S1, and hardening to prepare the core foamed concrete insulating brick (wherein, the figure 3 is a picture of a core foamed concrete insulating brick product prepared by using the core filling material prepared in the example 2).
Detection of heat transfer coefficient K value and average value of compressive strength of core-core foamed concrete insulating brick
The heat transfer coefficient K value and the average value of the compressive strength of the core foam concrete insulating brick prepared by the core filling materials prepared in the examples 1-3 and the comparative examples 1-5 and the core foam concrete insulating brick prepared in the comparative examples 6 and 7 are detected by adopting the national Standard of composite insulating brick and composite insulating block (GB/T29060-2012), and the results are shown in the following table:
remarking: in the table, "-" indicates that the index was not detected.
From the above table, it can be seen that: (1) as can be seen from the data of the heat transfer coefficient K and the average value of the compressive strength of the core-foamed concrete insulating bricks prepared by using the core-filling material of the invention, the heat transfer coefficient K of the core-foamed concrete insulating brick prepared by using the core-filling material of the invention is 0.25-0.31W/square meter K, and the average value of the compressive strength is 7.92-8.21MPa, which shows that the core-foamed concrete insulating brick prepared by using the core-filling material of the invention has excellent heat insulating property and compressive strength.
(2) From the data of the average values of compressive strength of example 2 and comparative example 1, the values of the average values of compressive strength generated when diisopropyl peroxydicarbonate, 3-N-t-butoxycarbonylamino-cyclobutyl amine, 2-dihydropropane peroxide and sodium starch octylsuccinate were used together were 8.21 to 5.83 to 2.38 (MPa); from the data of the average values of compressive strengths of example 2 and comparative example 2, it was calculated that the value of the effect of the average value of compressive strength generated when diisopropyl peroxydicarbonate was used alone was 8.21 to 7.81 was 0.4 (MPa); from the data on the average value of compressive strength of example 2 and comparative example 3, the value of the effect of the average value of compressive strength of 3-N-t-butoxycarbonylaminylcyclobutylamine, which is 8.21 to 7.62 to 0.59(MPa), when used alone, can be calculated; from the data of the average values of compressive strengths of example 2 and comparative example 4, it can be calculated that the effect value of the average value of compressive strengths generated when 2, 2-dihydropropane peroxide is used alone is 8.21 to 7.70 is 0.51 (MPa); from the data of the average values of the compressive strengths of example 2 and comparative example 5, the effect value of the average value of the compressive strength generated when the sodium starch octylsuccinate is used alone, 8.21 to 7.74, 0.47(MPa), can be calculated; the above data were combined to calculate the effect values of 0.4+0.59+0.51+ 0.47-1.97 (MPa) on the average compressive strength values of diisopropyl peroxydicarbonate, 3-N-t-butoxycarbonylaminocyclobutylamine, 2-dihydropropane peroxide, and sodium starch octylsuccinate when they were used alone.
And (3) judging the synergistic effect:
1) if the percentage M value of the effect value of the average compressive strength value generated when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are used together is improved by less than 0 percent than the percentage M value of the effect value of the average compressive strength value generated when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are used separately and superposed, the negative effect is realized when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are added together to prepare the core foamed concrete insulating brick.
2) If the mean compressive strength values obtained when diisopropyl peroxydicarbonate, 3-N-t-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octylsuccinate are used together have the effect value of increasing the percentage M of the mean compressive strength value obtained when diisopropyl peroxydicarbonate, 3-N-t-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octylsuccinate are used alone, as the effect value of the mean compressive strength value obtained by adding: if the M value is more than or equal to 0% and less than 10%, the improved M value is too small, and the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are added together to prepare the core foaming concrete insulating brick to play a simple superposition role without generating a synergistic effect.
3) If the effect value of the average compressive strength value generated when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are used together is improved by a percentage M value which is more than 10 percent than the effect value of the average compressive strength value generated when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are used separately and superposed, the synergistic effect is realized when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonylamino cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are added together to prepare the core foamed concrete insulating brick, if the M value is more than 10 percent and the M value is larger, the better the synergy produced.
From the above calculation, the percentage M value of the improved effect value of the average compressive strength value generated when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonyl cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are used together is (2.38-1.97) ÷ 1.97 × 100% ~ 20.8% > 10% as compared with the effect value of the average compressive strength value generated when the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonyl cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate are used alone respectively, and according to the above judgment, the synergistic effect of the diisopropyl peroxydicarbonate, the 3-N-tert-butoxycarbonyl cyclobutylamine, the 2, 2-dihydropropane peroxide and the sodium starch octylsuccinate added together in the preparation of the core foamed concrete insulating brick is demonstrated, and the generated synergistic effect is better. This may be because: the 3-N-tert-butyloxycarbonylamine cyclobutylamine and the 2, 2-dihydropropane peroxide react under the initiation of diisopropyl peroxydicarbonate at a proper rotating speed and temperature to generate a glue body, and the generated glue body is bonded and cured with the octyl succinic starch sodium, so that the average compressive strength of the core foamed concrete insulating brick is synergistically improved.
(3) As can be seen from the comparison of the heat transfer coefficient K value and the average value of the compressive strength of the heat-insulating brick in the embodiment 2 and the comparative example 6, the difference between the heat transfer coefficient K value and the average value of the compressive strength of the obtained core-foamed concrete heat-insulating brick is not large. However, as can be seen from comparison of the heat transfer coefficient K value and the average value of the compressive strength of the comparative example 6 and the comparative example 7, the heat transfer coefficient K value is reduced by 27.8%, and the average value of the compressive strength is improved by 28.8%, while the difference between the comparative example 6 and the comparative example 7 is the core filling material, which shows that the performance of the core filling material of the invention is obviously superior to that of the core filling material (cement foaming material) prepared by the prior art (the comparative example 7), and shows that the technology of the invention has obvious progress compared with the prior art.
The above description should not be taken as limiting the invention to the specific embodiments, but rather, as will be readily apparent to those skilled in the art to which the invention pertains, numerous simplifications or substitutions may be made without departing from the spirit of the invention, which should be construed to fall within the scope of the invention as defined in the claims appended hereto.
Claims (10)
1. The high-performance core filling material is characterized by comprising the following raw materials in parts by weight: 50-70 parts of cement, 18-30 parts of polyphenyl granules, 6-10 parts of fly ash, 1.2-2 parts of aluminum sulfate, 1.8-3.2 parts of calcium chloride, 2.3-3.8 parts of sodium sulfate, 2.2-2.6 parts of a water reducing agent, 0.3-0.5 part of a foaming agent, 0.2-0.4 part of a foam stabilizer, 1.5-2.6 parts of diisopropyl peroxydicarbonate, 2.4-3.5 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.1-1.3 parts of 2, 2-dihydropropane peroxide, 3.6-4.3 parts of sodium starch octylsuccinate, 8-14 parts of hydrogen peroxide and 350 parts of water 260-soluble organic phase.
2. The high-performance core filling material according to claim 1, which comprises the following raw materials in parts by weight: 62 parts of cement, 25 parts of polyphenyl particles, 9 parts of fly ash, 1.5 parts of aluminum sulfate, 2.6 parts of calcium chloride, 3 parts of sodium sulfate, 2.5 parts of a water reducing agent, 0.4 part of a foaming agent, 0.3 part of a foam stabilizer, 2 parts of diisopropyl peroxydicarbonate, 3 parts of 3-N-tert-butoxycarbonylamino cyclobutylamine, 1.2 parts of 2, 2-dihydropropane peroxide, 4 parts of sodium starch octyl succinate, 12 parts of hydrogen peroxide and 300 parts of water.
3. A high performance core filling material according to claim 1 or 2, wherein the cement is portland cement.
4. The high performance core filling material of claim 1 or 2, wherein the water reducing agent is a sodium lignosulfonate water reducing agent.
5. The high performance core filler material of claim 1 or 2, wherein the blowing agent is azodicarbonamide.
6. The high performance core filling material of claim 1 or 2, wherein the foam stabilizer is a silicone amide.
7. The high-performance core filling material according to claim 1 or 2, wherein the mass concentration of the hydrogen peroxide is 26-30%.
8. A method of making a high performance core-filling material according to any one of claims 1 to 7, comprising the steps of:
(1) stirring cement, fly ash and water in parts by weight for 10-16min at the rotating speed of 400-600r/min to prepare slurry;
(2) stirring polyphenyl particles, aluminum sulfate, calcium chloride, sodium sulfate, a water reducing agent, a foaming agent, a foam stabilizer and hydrogen peroxide in parts by weight for 1.4-2.3 hours at the temperature of 60-65 ℃ and the rotating speed of 200-300r/min to prepare a foam liquid;
(3) and (3) mixing the slurry prepared in the step (1), the foam liquid prepared in the step (2), diisopropyl peroxydicarbonate, 3-N-tert-butoxycarbonylamino cyclobutylamine, 2-dihydropropane peroxide and sodium starch octyl succinate, and stirring for 1.8-2.8h at the temperature of 74-78 ℃ and the rotating speed of 200-400r/min to prepare the high-performance core filling material.
9. The use of the high-performance core filling material prepared by the method according to claim 8 in the preparation of core-foamed concrete insulating bricks, wherein the core-foamed concrete insulating bricks comprise hollow bricks used as brick shells and the high-performance core filling material filled in brick cavities.
10. The use of the high-performance core filling material of claim 9 in the preparation of core-foamed concrete insulating bricks, wherein the preparation method of the core-foamed concrete insulating bricks comprises the following steps:
s1: preparing a hollow brick;
s2: preparing a core filling material;
s3: and (4) preparing the insulating brick, filling the core filling material prepared in the step S2 into the cavity of the hollow brick prepared in the step S1, and hardening to prepare the core foaming concrete insulating brick.
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