CN112521045A - Viscosity-reducing liquid phase composition and preparation method and application thereof - Google Patents
Viscosity-reducing liquid phase composition and preparation method and application thereof Download PDFInfo
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- CN112521045A CN112521045A CN202011436038.5A CN202011436038A CN112521045A CN 112521045 A CN112521045 A CN 112521045A CN 202011436038 A CN202011436038 A CN 202011436038A CN 112521045 A CN112521045 A CN 112521045A
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- phase composition
- water
- liquid phase
- component
- reducing agent
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- 239000007791 liquid phase Substances 0.000 title claims abstract description 33
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 69
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- 238000010276 construction Methods 0.000 claims abstract description 13
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- 125000006708 (C5-C14) heteroaryl group Chemical group 0.000 description 2
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- PMNLUUOXGOOLSP-UHFFFAOYSA-N 2-mercaptopropanoic acid Chemical compound CC(S)C(O)=O PMNLUUOXGOOLSP-UHFFFAOYSA-N 0.000 description 2
- 125000001541 3-thienyl group Chemical group S1C([H])=C([*])C([H])=C1[H] 0.000 description 2
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 125000006374 C2-C10 alkenyl group Chemical group 0.000 description 2
- 125000005865 C2-C10alkynyl group Chemical group 0.000 description 2
- 239000008830 Carthamus tinctorius Honghua extract Substances 0.000 description 2
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- 125000004593 naphthyridinyl group Chemical group N1=C(C=CC2=CC=CN=C12)* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- KZCOBXFFBQJQHH-UHFFFAOYSA-N octane-1-thiol Chemical compound CCCCCCCCS KZCOBXFFBQJQHH-UHFFFAOYSA-N 0.000 description 1
- MADOXCFISYCULS-UHFFFAOYSA-N octyl 2-sulfanylacetate Chemical compound CCCCCCCCOC(=O)CS MADOXCFISYCULS-UHFFFAOYSA-N 0.000 description 1
- LWNSNYBMYBWJDN-UHFFFAOYSA-N octyl 3-sulfanylpropanoate Chemical compound CCCCCCCCOC(=O)CCS LWNSNYBMYBWJDN-UHFFFAOYSA-N 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 125000003566 oxetanyl group Chemical group 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001791 phenazinyl group Chemical group C1(=CC=CC2=NC3=CC=CC=C3N=C12)* 0.000 description 1
- 125000001484 phenothiazinyl group Chemical group C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- 125000001644 phenoxazinyl group Chemical group C1(=CC=CC=2OC3=CC=CC=C3NC12)* 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 1
- 125000004592 phthalazinyl group Chemical group C1(=NN=CC2=CC=CC=C12)* 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- DJEHXEMURTVAOE-UHFFFAOYSA-M potassium bisulfite Chemical compound [K+].OS([O-])=O DJEHXEMURTVAOE-UHFFFAOYSA-M 0.000 description 1
- 229940099427 potassium bisulfite Drugs 0.000 description 1
- HEZHYQDYRPUXNJ-UHFFFAOYSA-L potassium dithionite Chemical compound [K+].[K+].[O-]S(=O)S([O-])=O HEZHYQDYRPUXNJ-UHFFFAOYSA-L 0.000 description 1
- 235000010259 potassium hydrogen sulphite Nutrition 0.000 description 1
- 229910001380 potassium hypophosphite Inorganic materials 0.000 description 1
- RWPGFSMJFRPDDP-UHFFFAOYSA-L potassium metabisulfite Chemical compound [K+].[K+].[O-]S(=O)S([O-])(=O)=O RWPGFSMJFRPDDP-UHFFFAOYSA-L 0.000 description 1
- 229940043349 potassium metabisulfite Drugs 0.000 description 1
- 235000010263 potassium metabisulphite Nutrition 0.000 description 1
- CRGPNLUFHHUKCM-UHFFFAOYSA-M potassium phosphinate Chemical compound [K+].[O-]P=O CRGPNLUFHHUKCM-UHFFFAOYSA-M 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- ASUAYTHWZCLXAN-UHFFFAOYSA-N prenol Chemical compound CC(C)=CCO ASUAYTHWZCLXAN-UHFFFAOYSA-N 0.000 description 1
- 125000001042 pteridinyl group Chemical group N1=C(N=CC2=NC=CN=C12)* 0.000 description 1
- 125000000561 purinyl group Chemical group N1=C(N=C2N=CNC2=C1)* 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003072 pyrazolidinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- 125000005551 pyridylene group Chemical group 0.000 description 1
- 125000000714 pyrimidinyl group Chemical group 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000001422 pyrrolinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000005493 quinolyl group Chemical group 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- XWGJFPHUCFXLBL-UHFFFAOYSA-M rongalite Chemical compound [Na+].OCS([O-])=O XWGJFPHUCFXLBL-UHFFFAOYSA-M 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- HLJWMCUZPYEUDI-UHFFFAOYSA-L sodium hyponitrite Chemical compound [Na+].[Na+].[O-]N=N[O-] HLJWMCUZPYEUDI-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000001412 tetrahydropyranyl group Chemical group 0.000 description 1
- 125000005329 tetralinyl group Chemical group C1(CCCC2=CC=CC=C12)* 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000005556 thienylene group Chemical group 0.000 description 1
- 229940035024 thioglycerol Drugs 0.000 description 1
- NJRXVEJTAYWCQJ-UHFFFAOYSA-N thiomalic acid Chemical compound OC(=O)CC(S)C(O)=O NJRXVEJTAYWCQJ-UHFFFAOYSA-N 0.000 description 1
- 125000004568 thiomorpholinyl group Chemical group 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000005455 trithianyl group Chemical group 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2605—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing polyether side chains
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2641—Polyacrylates; Polymethacrylates
- C04B24/2647—Polyacrylates; Polymethacrylates containing polyether side chains
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
- C08F283/065—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals on to unsaturated polyethers, polyoxymethylenes or polyacetals
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
-
- 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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/308—Slump-loss preventing agents
Abstract
The invention relates to a viscosity reduction type liquid phase composition, a preparation method and application thereof, in particular to a viscosity reduction type water reducer applied to similar construction modes of pipe piles, sleepers and the like, a preparation method and application thereof, and belongs to the technical field of concrete admixtures. The invention provides a liquid phase composition, which comprises the following components: (1) one or more than two polymers P selected from the group consisting of polyether macromonomer and small monomer polymers; and (2) one or more water reducing agents Q selected from the group consisting of a water-reducing polycarboxylic acid water reducing agent, a slow-release polycarboxylic acid water reducing agent and a slump-retaining polycarboxylic acid water reducing agent; with the proviso that the liquid-phase composition contains two or more of the polymers P or two or more of the water-reducing agents Q. The liquid phase composition can be widely applied to a plurality of fields of commercial concrete such as pumping type tubular piles, high-strength concrete pumping and high stone powder sand making, and meets the requirements of different application fields such as tubular piles or sleepers on the performance of concrete additives.
Description
Technical Field
The invention relates to a viscosity reduction type liquid phase composition, a preparation method and application thereof, in particular to a viscosity reduction type water reducer applied to similar construction modes of pipe piles, sleepers and the like, a preparation method and application thereof, and belongs to the technical field of concrete admixtures.
Background
At present, the naphthalene water reducer is mainly used in the field of pipe piles. Although the naphthalene water reducer has a good viscosity reduction effect, the naphthalene water reducer has the defects of large mixing amount during use, quick loss of mixed concrete compared with a polycarboxylic acid water reducer and the like. More seriously, the raw materials for preparing the naphthalene water reducer are harmful substances, high-temperature heating is needed in the preparation process, so that the environmental pollution is serious, and the concrete mixed by the naphthalene water reducer has obvious pungent smell. At present, with the gradual attention of the public on environmental protection, each end user is more inclined to use a polycarboxylic acid water reducing agent to replace a naphthalene water reducing agent. However, the existing common polycarboxylate superplasticizers have some technical problems which are difficult to solve in the field of pipe piles and sleepers. For example, high grade concrete that is blended at low cement ratios has a high viscosity, is very labor intensive to scoop and is difficult to pump, and therefore a functional polycarboxylate water reducer that improves the viscosity of the concrete is needed to match the end use requirements.
The pipe piles are classified into prestressed concrete pipe piles (PC pipe piles), prestressed concrete thin-wall pipe piles (PTC pipe piles) and prestressed high-strength concrete pipe piles (PHC pipe piles) according to the strength grade and wall thickness of concrete. Generally speaking, the concrete strength of the PC pipe pile is not lower than that of the C50 concrete, the strength grade of the PTC pipe pile is not lower than that of the C60 concrete, and the strength grade of the PHC pipe pile is not lower than that of the C80 concrete. In 2016, the demand of the PHC tubular pile reaches the scale of about 5.98 hundred million meters, the traditional production line is mainly used in the domestic tubular pile market at present, a fixed die adopts a movable stock bin material distribution mode, the grade of concrete used by the tubular pile is high, and the water-cement ratio of the concrete is generally controlled below 0.3. On one hand, the cloth needs to be shoveled manually in the paving process, so that the concrete needs to keep certain softness. On the other hand, in order to improve the production efficiency, the concrete needs to have better early strength performance so as to be demoulded as soon as possible. Therefore, in the market of the water reducing agent used for the pipe pile at present, more than about 80 percent of the pipe pile meets the use requirement of the pipe pile by using the naphthalene water reducing agent. In addition, because the novel production line mainly uses pipeline pumping concrete distribution, in order to keep good pumping performance of the production line, the concrete must ensure a certain water reducing rate and have a certain softness, otherwise, the mixed concrete is easy to block the pipeline during field pumping, and great difficulty is brought to construction.
Similarly, similar problems exist in the tie art. Because sleeper construction mostly is cloth formula and loads the mould, need artifical napping, and the viscosity of high-strength concrete is higher leads to the heavy difficult construction of operation, therefore needs can improve the concrete softness degree, the water-reducing agent product of construction of being convenient for.
Therefore, the development of the polycarboxylate superplasticizer with viscosity reducing performance and viscosity reducing components thereof has extremely important significance for improving the quality, efficiency, cost, environmental protection performance and the like of similar construction modes such as pipe piles and sleepers.
Disclosure of Invention
In order to improve the technical problem, the invention provides a liquid phase composition, which comprises the following components:
(1) one or more than two polymers P selected from the group consisting of polyether macromonomer and small monomer polymers; and
(2) one or more than two water reducing agents Q selected from a water reducing polycarboxylic acid water reducing agent, a slow release polycarboxylic acid water reducing agent and a slump retaining polycarboxylic acid water reducing agent;
with the proviso that the liquid-phase composition contains two or more of the polymers P or two or more of the water-reducing agents Q.
According to an embodiment of the invention, said component (2) does not comprise component (1).
According to an embodiment of the present invention, the polyether macromonomer described in component (1) may be a compound having a structure represented by formula I:
wherein R is1Represents C1-20A hydrocarbon group of (a); for example, R1Represents C1-20Alkyl of (C)2-20Alkenyl of, C2-20Alkynyl of (a); preferably, R1Represents C1-8Alkyl groups of (a); illustratively, R1May be selected from one, two or more of ethyl, propyl and butyl;
[R2O]nin [ R ]2O]May be the same or different and may represent C2-20Alkenyloxy of (a); for example, [ R ]2O]Represents C2-18Alkenyloxy of (A), C2-8Alkenyloxy of (a); exemplarily, [ R ]2O]May be selected from one, two or more of ethyleneoxy, propyleneoxy and butyleneoxy;
n represents the average addition mole number of the oxyalkylene group, and 1. ltoreq. n.ltoreq.300; for example, n may be between 15-300, 25-200, 40-150, 50-130, or 60-100;
R3represents
Wherein R is4Can be selected from alkyl, alkenyl, phenyl, substituted phenyl; for example, R4May be selected from C1-20Alkyl of (C)2-20Alkenyl of, C6-20Phenyl radical of (1), C6-20Substituted phenyl of (a); preferably, R4May be selected from C1-8Alkyl of (C)2-8Alkenyl of, C6-12Phenyl radical of (1), C6-12Substituted phenyl of (a); illustratively, R4Can be selected from one or two of benzyl and substituted benzyl (such as m-tolyl);
the polyether macromonomer according to the present invention, when [ R ]2O]When the amount is 2 or more kinds, the addition method may be any of block addition, random addition, alternating addition, and the like;
according to an exemplary embodiment of the present invention, the polyether macromonomer may have a structural formula as shown in any one of the following formulas II, III, IV or V:
according to an embodiment of the present invention, the polyether macromonomer described in component (1) can be prepared by a method disclosed in chinese patent document CN 109679086A.
According to an embodiment of the present invention, the small monomer described in component (1) is a compound represented by formula VI, a salt or an anhydride thereof:
wherein A, B, C are identical or different and are independently selected from H, -COOH, the following groups unsubstituted or optionally substituted with one or more-COOH: c1-40Alkyl radical, C1-40Alkoxy radical, C3-20Cycloalkyl radical, C3-20Cycloalkyloxy, 3-20 membered heterocyclyl, 3-20 membered heterocyclyloxy, C6-20Aryl radical, C6-20Aryloxy, 5-20 membered heteroaryl, 5-20 membered heteroaryloxy;
d is-OH;
said C is1-40Alkyl radical, C1-40Alkoxy radical, C3-20Cycloalkyl radical, C3-20Cycloalkyloxy, 3-20 membered heterocyclyl, 3-20 membered heterocyclyloxy, C6-20Aryl radical, C6-20Aryloxy, 5-20 membered heteroaryl, 5-20 membered heteroaryloxy may also be further substituted with one or more RSSubstitution;
each RSCan be identical or different and are independently selected from the group consisting of H, -OH, -SH, -CN, -SO3Na、C1-40Alkyl radical, C1-40Alkoxy radical, C3-20Cycloalkyl radical, C3-20Cycloalkyloxy, 3-20 membered heterocyclyl, 3-20 membered heterocyclyloxy, C6-20Aryl radical, C6-20Aryloxy, 5-20 membered heteroaryl, 5-20 memberedA heteroaryloxy group;
according to an embodiment of the present invention, when the compound represented by formula VI has a chiral center, the compound represented by formula II may also be a racemate, a stereoisomer, or a tautomer thereof;
according to an embodiment of the present invention, the polyether macromonomer has a weight average molecular weight of 1500 to 10000, preferably 3000 to 5000; illustratively, the polyether macromonomer has a weight average molecular weight of 4000 or 5000;
according to an embodiment of the invention, A, B, C in the compound of formula VI, which are identical or different, are independently selected from H, -COOH, the following groups unsubstituted or optionally substituted with one or more-COOH: c1-12Alkyl or C1-12An alkoxy group;
according to an embodiment of the invention, the compound of formula VI is selected from the following compounds or anhydrides thereof: acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid; illustratively, the compound of formula VI is acrylic acid.
According to an embodiment of the present invention, water may be contained in the component (1) and/or the component (2) of the liquid-phase composition.
According to the embodiment of the present invention, when the component (1) contains water, the mass percentage of the total mass of the polymer P in the water phase may be 20 to 70%
According to the embodiment of the invention, when the component (2) contains water, the mass percentage of the total mass of the water reducing agent Q in the water phase can be 5-60%
According to an embodiment of the present invention, component (1) is a viscosity-reducing polycarboxylic acid water reducing agent.
According to an embodiment of the invention, the mass ratio of component (1) to component (2) may be 1:2 to 5:1, such as 1.2:1 to 4:1, such as 1.5:1 to 3.5:1, such as 1.8:1 to 3.2:1, such as 1:2 to 2:1, examples of which may be 1:2, 1:1.5, 1:1.2, 1:1, 1.2:1, 1.5:1, 1.9:1, 2.0:1, 2.1:1, 2.2:1, 2.3:1, 2.4:1, 2.5:1, 2.6:1, 2.7:1, 2.8:1, 2.9:1, 3.0:1, 3.1:1 or 3.2: 1.
According to an embodiment of the present invention, the method for preparing the polymer P in the component (1) comprises: and carrying out free radical polymerization reaction on the polyether macromonomer and the compound shown in the formula VI.
According to an embodiment of the present invention, in the method for preparing the polymer P, the mass ratio of the compound represented by formula VI to the polyether macromonomer may be (1-40):100, for example, (1-30):100, (4-15): 100.
According to the preparation method of the present invention, in the preparation method of the polymer P, the polymerization reaction can be carried out under the action of a molecular weight regulator. For example, the molecular weight regulator may be selected from one or a combination of several of the following compounds or inorganic salts thereof (when present): mercaptoethanol, thioglycerol, thioglycolic acid, 2-mercaptopropionic acid, 3-mercaptopropionic acid, thiomalic acid, octyl thioglycolate, octyl 3-mercaptopropionate, 2-mercaptoethanesulfonic acid, n-dodecylmercaptan, octylmercaptan, butyl thioglycolate, isopropanol, sodium hypophosphite, potassium hypophosphite, sulfurous acid, bisulfite, dithionous acid, metabisulfite, sodium sulfite, potassium sulfite, sodium bisulfite, potassium bisulfite, sodium hydrosulfite, potassium dithionite, sodium metabisulfite, or potassium metabisulfite; preferably, the molecular weight regulator may be thioglycolic acid. For example, the mass ratio of the molecular weight regulator to the polyether macromonomer may be (0.05-2):100, e.g., (0.1-1.5):100, e.g., (0.3-1): 100.
According to the preparation method of the invention, in the preparation method of the polymer P, the polymerization reaction can be carried out under the action of the catalyst; the catalyst may be selected from organic amines or salts thereof, alkali metal sulfites, suboxidizing compounds or salts thereof, ascorbic acid, erythorbic acid, ascorbic acid or derivatives of erythorbic acid as follows: a salt or ester; for example, the catalyst is selected from one or more of the following compounds: one, two or more of hypophosphorous acid, sodium hypophosphite, sodium bisulfite, sodium hyponitrite, ferrous ammonium sulfate, sodium formaldehyde sulfoxylate, L-ascorbic acid, L-ascorbate, isoascorbic acid, erythorbate and erythorbate. For example, the mass ratio of the catalyst to the polyether macromonomer may be (0.1-2):100, for example (0.1-1):100, such as (0.2-0.5): 100.
According to an embodiment of the present invention, the method for preparing the polymer P may include the steps of: and at room temperature, adding the polyether macromonomer into a reactor, dissolving the polyether macromonomer with water, adding an initiator and a mixed solution of the compound shown in the formula VI, the catalyst and the molecular weight regulator into the reactor, curing the mixed solution after the addition of the initiator, the catalyst and the molecular weight regulator, and cooling the mixed solution to the room temperature to obtain the polycarboxylic acid water reducer. For example, the mass ratio of the water to the polyether macromonomer may be 1 (1-2), illustratively 1: 1.5. The mixed solution is added in a dropwise manner, and the dropwise adding time can be 0.5-1.5 h; the curing time can be 1-2 h; the room temperature may be 20-40 ℃.
According to an embodiment of the invention, the liquid composition is a built water reducer comprising the component (1) and the component (2).
According to an embodiment of the present invention, the liquid phase composition comprises two kinds of the polymers P, and one or more than two kinds of the water reducing agents Q.
According to an embodiment of the present invention, the liquid phase composition comprises one or more than two of the polymers P, and two or more than two of the water reducing agents Q.
According to an embodiment of the present invention, the component (2) may comprise two or more water reducing agents Q. For example, the component (2) may comprise a combination of a water-reducing polycarboxylic acid water-reducing agent and a slow-release polycarboxylic acid water-reducing agent, a combination of a water-reducing polycarboxylic acid water-reducing agent and a slump-retaining polycarboxylic acid water-reducing agent, or a combination of a slow-release polycarboxylic acid water-reducing agent and a slump-retaining polycarboxylic acid water-reducing agent.
The present invention also provides a method for producing the liquid phase composition, comprising mixing the component (1) and the component (2) to obtain the liquid phase composition.
The invention also provides the application of the liquid phase composition, wherein the liquid phase composition is used as high stone powder, cement or concrete admixture, preferably as concrete admixture in construction modes such as pipe piles and sleepers.
Advantageous effects
The liquid phase composition has excellent viscosity reduction performance, slump retaining performance and constructability, can be widely applied to a plurality of fields of commercial concrete of pumping type tubular piles, high-strength concrete pumping and high stone powder machine sand making, is used as a compound water reducing agent, is more favorable for meeting the requirements of different application fields of tubular piles or sleepers and the like, greatly reduces the construction difficulty of the concrete, reduces the pumping pressure of the high-strength concrete, obviously improves the constructability, has excellent viscosity reduction performance, and can effectively reduce the mixing amount and the cost of the concrete.
Compared with the traditional polycarboxylic acid water reducing agent in the field of sleepers and pipe piles, the liquid-phase composition disclosed by the invention has the advantages of capability of reducing the viscosity of concrete, better water reducing rate and retention capacity, better adaptability, low sensitivity to water, short normal-temperature synthesis and dropwise addition time, relatively reduced redundant process steps and easiness in realizing industrial production.
From the perspective of terminal application, compared with a naphthalene water reducer, the liquid-phase composition disclosed by the invention is safe, environment-friendly, odorless, clean and pollution-free, has no solvent poison, is easy to obtain reaction raw materials, does not need nitrogen protection at normal temperature and normal pressure in a synthesis reaction process, is high in safety coefficient, does not generate waste water, and greatly reduces the production cost. The liquid phase composition and the compound water reducing agent have excellent water reducing and dispersing effects, can still show good fluidity and holding capacity under a low mixing amount, and show strong adaptability to different varieties of cement. And the synthesis process is simple and efficient, easy to control, safe, environment-friendly and pollution-free, and has remarkable market application prospect.
Definition of terms
Unless otherwise indicated, the definitions of radicals and terms set forth in the specification and claims of this application, including definitions thereof as examples, exemplary definitions, preferred definitions, definitions of particular compounds in the examples, and the like, may be combined with one another in any combination and permutation. The definitions of the groups and the structures of the compounds in such combinations and after the combination are within the scope of the present specification.
Where a range of numerical values is recited in the specification and claims herein, and where the range of numerical values is defined as an "integer," it is understood that the two endpoints of the range are recited and each integer within the range is recited. For example, "an integer of 0 to 10" should be understood to describe each integer of 0, 1,2, 3,4, 5,6, 7, 8, 9, and 10. When a range of values is defined as "a number," it is understood that the two endpoints of the range, each integer within the range, and each decimal within the range are recited. For example, "a number of 0 to 10" should be understood to not only recite each integer of 0, 1,2, 3,4, 5,6, 7, 8, 9, and 10, but also to recite at least the sum of each integer and 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, respectively.
The term "alkylene oxide" refers to an epoxide. For example, the alkylene oxide may be ethylene oxide (ethylene oxide), propylene oxide (propylene oxide), 1, 2-butylene oxide (butylene oxide), or the like.
The term "C1-40Alkyl is understood to preferably mean a straight-chain or branched saturated monovalent hydrocarbon radical having from 1 to 40 carbon atoms, preferably C1-20Alkyl radical, C1-8An alkyl group. "C1-8Alkyl "is understood to preferably mean a straight-chain or branched, saturated monovalent hydrocarbon radical having 1,2, 3,4, 5,6, 7 or 8 carbon atoms. The alkyl group is, for example, a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an isopropyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an isopentyl group, a 2-methylbutyl group, a 1-ethylpropyl group, a 1, 2-dimethylpropyl group, a neopentyl group, a 1, 1-dimethylpropyl group, a 4-methylpentyl group, a 3-methylpentyl group, a 2-ethylbutyl group, a 1-ethylbutyl group, a 3, 3-dimethylbutyl group, a 2, 2-dimethylbutyl group, a 1, 1-dimethylbutyl group, a 2, 3-dimethylbutyl group, a 1, 3-dimethylbutyl group or a 1, 2-dimethylbutyl group.
The term "C2-40Alkenyl "is understood to preferably mean a straight-chain or branched monovalent hydrocarbon radical comprising one or more double bonds and having from 2 to 40 carbon atoms, preferably" C2-20Alkenyl group "," C2-10Alkenyl ". "C2-10Alkenyl "is understood to preferably mean a straight-chain or branched monovalent hydrocarbon radical comprising oneOr a plurality of double bonds and having 2,3, 4,5, 6, 7, 8, 9 or 10 carbon atoms, in particular 2 or 3 carbon atoms ("C)2-3Alkenyl "), it being understood that in the case where the alkenyl group comprises more than one double bond, the double bonds may be separated from each other or conjugated. The alkenyl group is, for example, vinyl, allyl, (E) -2-methylvinyl, (Z) -2-methylvinyl, (E) -but-2-enyl, (Z) -but-2-enyl, (E) -but-1-enyl, (Z) -but-1-enyl, pent-4-enyl, (E) -pent-3-enyl, (Z) -pent-3-enyl, (E) -pent-2-enyl, (Z) -pent-2-enyl, (E) -pent-1-enyl, (Z) -pent-1-enyl, hex-5-enyl, (E) -hex-4-enyl, (Z) -hex-4-enyl, m-n-2-enyl, m-n-1-enyl, m-n-E-4-enyl, m-n-2-, (E) -hex-3-enyl, (Z) -hex-3-enyl, (E) -hex-2-enyl, (Z) -hex-2-enyl, (E) -hex-1-enyl, (Z) -hex-1-enyl, isopropenyl, 2-methylprop-2-enyl, 1-methylprop-2-enyl, 2-methylprop-1-enyl, (E) -1-methylprop-1-enyl, (Z) -1-methylprop-1-enyl, 3-methylbut-3-enyl, 2-methylbut-3-enyl, 1-methylbut-3-enyl, 3-methylbut-2-enyl, (E) -2-methylbut-2-enyl, (Z) -2-methylbut-2-enyl, (E) -1-methylbut-2-enyl, (Z) -1-methylbut-2-enyl, (E) -3-methylbut-1-enyl, (Z) -3-methylbut-1-enyl, (E) -2-methylbut-1-enyl, (Z) -2-methylbut-1-enyl, (E) -1-methylbut-1-enyl, (Z) -1-methylbut-1-enyl, 1-dimethylprop-2-enyl, 1-ethylprop-1-enyl, 1-propylvinyl group and 1-isopropylvinyl group.
The term "C2-20Alkynyl "is understood to mean a straight-chain or branched monovalent hydrocarbon radical comprising one or more triple bonds and having from 2 to 20 carbon atoms, preferably" C2-C10Alkynyl ". The term "C2-C10Alkynyl "is understood as preferably meaning a straight-chain or branched, monovalent hydrocarbon radical which contains one or more triple bonds and has 2,3, 4,5, 6, 7, 8, 9 or 10 carbon atoms, in particular 2 or 3 carbon atoms (" C2-C3-alkynyl "). The alkynyl group is, for example, ethynyl, prop-1-ynyl, prop-2-ynyl, but-1-ynyl, but-2-ynyl, but-3-ynyl, pent-1-ynyl, pent-2-ynyl, pent-3-ynyl, pent-4-ynyl, hex-1-ynyl, hex-2-ynyl, hex-3-ynyl, hex-4-ynyl, hex-5-ynyl, 1-methyl-1-ynylProp-2-ynyl, 2-methylbut-3-ynyl, 1-methylbut-2-ynyl, 3-methylbut-1-ynyl, 1-ethylprop-2-ynyl, 3-methylpent-4-ynyl, 2-methylpent-4-ynyl, 1-methylpent-4-ynyl, 2-methylpent-3-ynyl, 1-methylpent-3-ynyl, 4-methylpent-2-ynyl, 1-methylpent-2-ynyl, 4-methylpent-1-ynyl, 3-methylpent-1-ynyl, 2-ethylbut-3-ynyl, 2-methylbut-3-ynyl, 1-methylpent-4-ynyl, 2-methylpent-1-ynyl, 2-methylbut-3, 1-ethylbut-3-ynyl, 1-ethylbut-2-ynyl, 1-propylprop-2-ynyl, 1-isopropylprop-2-ynyl, 2-dimethylbut-3-ynyl, 1-dimethylbut-2-ynyl or 3, 3-dimethylbut-1-ynyl. In particular, the alkynyl group is ethynyl, prop-1-ynyl or prop-2-ynyl.
The term "C3-20Cycloalkyl is understood to mean a saturated monovalent monocyclic or bicyclic hydrocarbon ring having 3 to 20 carbon atoms, preferably "C3-10Cycloalkyl groups ". The term "C3-10Cycloalkyl "is understood to mean a saturated monovalent monocyclic or bicyclic hydrocarbon ring having 3,4, 5,6, 7, 8, 9 or 10 carbon atoms. Said C is3-10Cycloalkyl groups may be monocyclic hydrocarbon groups such as cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclononyl or cyclodecyl, or bicyclic hydrocarbon groups such as decalin rings.
The term "3-20 membered heterocyclyl" means a saturated monovalent monocyclic or bicyclic hydrocarbon ring comprising 1-5 heteroatoms independently selected from N, O and S, preferably "3-10 membered heterocyclyl". The term "3-10 membered heterocyclyl" means a saturated monovalent monocyclic or bicyclic hydrocarbon ring comprising 1-5, preferably 1-3 heteroatoms selected from N, O and S. The heterocyclic group may be attached to the rest of the molecule through any of the carbon atoms or nitrogen atom (if present). In particular, the heterocyclic group may include, but is not limited to: 4-membered rings such as azetidinyl, oxetanyl; 5-membered rings such as tetrahydrofuranyl, dioxolyl, pyrrolidinyl, imidazolidinyl, pyrazolidinyl, pyrrolinyl; or a 6-membered ring such as tetrahydropyranyl, piperidinyl, morpholinyl, dithianyl, thiomorpholinyl, piperazinyl, or trithianyl; or a 7-membered ring such as diazepanyl. Optionally, the heterocyclic group may be benzo-fused. The heterocyclyl group may be bicyclic, for example but not limited to a 5,5 membered ring, such as a hexahydrocyclopenta [ c ] pyrrol-2 (1H) -yl ring, or a 5,6 membered bicyclic ring, such as a hexahydropyrrolo [1,2-a ] pyrazin-2 (1H) -yl ring. The nitrogen atom containing ring may be partially unsaturated, i.e., it may contain one or more double bonds, such as, but not limited to, 2, 5-dihydro-1H-pyrrolyl, 4H- [1,3,4] thiadiazinyl, 4, 5-dihydrooxazolyl, or 4H- [1,4] thiazinyl, or it may be benzo-fused, such as, but not limited to, dihydroisoquinolinyl. According to the invention, the heterocyclic radical is non-aromatic.
The term "C6-20Aryl "is understood to preferably mean a mono-, bi-or tricyclic hydrocarbon ring having a monovalent or partially aromatic character with 6 to 20 carbon atoms, preferably" C6-14Aryl ". The term "C6-14Aryl "is to be understood as preferably meaning a mono-, bi-or tricyclic hydrocarbon ring having a monovalent or partially aromatic character with 6, 7, 8, 9, 10, 11, 12, 13 or 14 carbon atoms (" C6-14Aryl group "), in particular a ring having 6 carbon atoms (" C6Aryl "), such as phenyl; or biphenyl, or is a ring having 9 carbon atoms ("C9Aryl), such as indanyl or indenyl, or a ring having 10 carbon atoms ("C10Aryl radicals), such as tetralinyl, dihydronaphthyl or naphthyl, or rings having 13 carbon atoms ("C13Aryl radicals), such as the fluorenyl radical, or a ring having 14 carbon atoms ("C)14Aryl), such as anthracenyl.
The term "5-20 membered heteroaryl" is understood to include such monovalent monocyclic, bicyclic or tricyclic aromatic ring systems: having 5 to 20 ring atoms and comprising 1 to 5 heteroatoms independently selected from N, O and S, such as "5-14 membered heteroaryl". The term "5-14 membered heteroaryl" is understood to include such monovalent monocyclic, bicyclic or tricyclic aromatic ring systems: which has 5,6, 7, 8, 9, 10, 11, 12, 13 or 14 ring atoms, in particular 5 or 6 or 9 or 10 carbon atoms, and which comprises 1 to 5, preferably 1 to 3, heteroatoms each independently selected from N, O and S and, in addition, can be benzo-fused in each case. In particular, heteroaryl is selected from thienyl, furyl, pyrrolyl, oxazolyl, thiazolyl, imidazolyl, pyrazolyl, isoxazolyl, isothiazolyl, oxadiazolyl, triazolyl, thiadiazolyl, thia-4H-pyrazolyl and the like and their benzo derivatives, such as benzofuryl, benzothienyl, benzoxazolyl, benzisoxazolyl, benzimidazolyl, benzotriazolyl, indazolyl, indolyl, isoindolyl and the like; or pyridyl, pyridazinyl, pyrimidinyl, pyrazinyl, triazinyl, and the like, and benzo derivatives thereof, such as quinolyl, quinazolinyl, isoquinolyl, and the like; or azocinyl, indolizinyl, purinyl and the like and benzo derivatives thereof; or cinnolinyl, phthalazinyl, quinazolinyl, quinoxalinyl, naphthyridinyl, pteridinyl, carbazolyl, acridinyl, phenazinyl, phenothiazinyl, phenoxazinyl, and the like.
Unless otherwise indicated, heterocyclyl, heteroaryl or heteroarylene include all possible isomeric forms thereof, e.g., positional isomers thereof. Thus, for some illustrative, non-limiting examples, pyridyl or pyridinylene includes pyridin-2-yl, pyridinylene-2-yl, pyridin-3-yl, pyridinylene-3-yl, pyridin-4-yl, and pyridinylene-4-yl; thienyl or thienylene includes thien-2-yl, thien-3-yl and thien-3-yl.
The above for the term "alkyl", e.g. "C1-40The definition of alkyl "applies equally to compounds containing" C1-40Other terms for alkyl radicals, e.g. the term "C1-40Alkyloxy "and" C1-40Alkoxy "and the like. Likewise, the above pair of terms "C2-40Alkenyl group "," C2-40Alkynyl group "," C3-20Cycloalkyl group "," C5-20Cycloalkenyl group "," 3-20 membered heterocyclic group "," C6-20The definitions of aryl "and" 5-to 20-membered heteroaryl "apply correspondingly equally to the other terms containing it, such as the term" C2-40Alkenyloxy group and C2-40Alkynyloxy "," C3-20Cycloalkyloxy "," 3-20 membered heterocyclyl "," 3-20 membered heterocyclyloxy "," C6-20Aryloxy group and C6-20Arylalkyl "and" 5-20 membered heteroarylalkyl "and the like.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to specific embodiments. It is to be understood that the following examples are only illustrative and explanatory of the present invention and should not be construed as limiting the scope of the present invention. All the technologies realized based on the above-mentioned contents of the present invention are covered in the protection scope of the present invention.
Unless otherwise stated, the experimental procedures used in the following examples are conventional, unless otherwise specified; the starting materials, reagents or other materials used, etc., are commercially available or may be prepared by methods known in the art.
Preparation example 1 preparation of Water-reduced mother liquor TL-01
49g of a polyether macromonomer (molecular weight 3000, commercially available product WR6251 from Honghua New materials science and technology Co., Ltd.) prepared using 2-methallyl alcohol as an initiator was dissolved in 32.5g of water, 0.06g of hydrogen peroxide (30 mass% aqueous solution) was added, and then 5.2g of acrylic acid, 0.08g of L-ascorbic acid, 0.22g of a mixed solution of thioglycolic acid and water were added dropwise over 2.5 hours, followed by aging for 1 hour after completion of the dropwise addition, and cooling to room temperature to obtain a water-reduced mother liquor TL-01.
Preparation example 2 preparation of slump-retaining mother liquor TLB-01
49g of a polyether macromonomer (molecular weight 2400, commercially available product SR7302 from Honghua New Material science and technology Co., Ltd.) prepared using prenol as an initiator was placed in a kettle and dissolved in 32.5g of water, 0.06g of hydrogen peroxide (30 mass% aqueous solution) was added, and then 1.8g of acrylic acid, 4.88g of hydroxyethyl acrylate, 0.12g of L-ascorbic acid, and 0.23g of a mixture of mercaptopropionic acid and water were added dropwise over 2.5 hours, followed by aging for 1 hour after completion of the dropwise addition, and cooling to room temperature to obtain slump-retaining mother liquor TLB-01.
Example 1
49g of polyether macromonomer (weight average molecular weight: about 5000) prepared by referring to the example of CN109679086A and using 2-ethyleneoxyethanol as an initiator and adopting m-toluene isocyanate for end capping is placed in a kettle to be dissolved in 32.5g of water, 0.06g of hydrogen peroxide (30 mass percent aqueous solution) is added, then a mixed solution of 4.9g of acrylic acid, 0.12g of L-ascorbic acid and 0.38g of thioglycolic acid is added dropwise for 50min, after the dropwise addition is finished, the mixture is aged for 1.5h and cooled to room temperature to obtain viscosity reduction mother liquor A, and the viscosity reduction mother liquor A, the water reduction mother liquor TL-01 and the slump retention mother liquor TLB-01 are compounded according to the mass ratio of 23:4:5 to obtain the viscosity reduction type water reducer for sleepers.
Example 2
49g of the viscosity-reducing water reducer for sleepers prepared by referring to the example of CN109679086A, dissolving a polyether macromonomer (molecular weight about 4000) prepared by using 2-ethyleneoxyethanol as an initiator and blocking with m-tolylene isocyanate in 32.5g of water, adding 0.06g of hydrogen peroxide (30 mass% aqueous solution), then starting to dropwise add a mixed solution of 3.2g of acrylic acid, 0.12g of L-ascorbic acid and 0.22g of mercaptopropionic acid for 1 hour, curing for 1.5 hours after the dropwise addition is completed, cooling to room temperature to obtain a mother solution B, and compounding with a water-reducing mother solution TL-01 and a slump-retaining mother solution TLB-01 according to a ratio of 28:5:4 to obtain the viscosity-reducing water reducer for sleepers.
Example 3
49g of the viscosity reducing water reducer for the pumping type tubular pile is prepared by placing 49g of the polyether macromonomer (molecular weight is about 5000) prepared by referring to the example of CN109679086A and using 2-ethyleneoxy ethanol as an initiator and blocking with m-toluene isocyanate in a kettle, dissolving the polyether macromonomer (molecular weight is about 5000) in 32.5g of water, adding 0.06g of hydrogen peroxide (30 mass% aqueous solution), then starting to dropwise add a mixed solution of 1.2g of acrylic acid, 2.8g of hydroxyethyl acrylate, 0.12g of L-ascorbic acid and 0.26g of thioglycolic acid for 1h, curing for 1.5h after the dropwise addition is completed, cooling to room temperature to obtain a viscosity reducing mother solution C, and compounding the viscosity reducing mother solution C with the viscosity reducing mother solution A and the water reducing mother solution TL-01 according to the mass ratio of 3:6:5 to obtain the.
Example 4
49g of a polyether macromonomer (molecular weight: about 5000) prepared by referring to the example of CN109679086A and prepared by using 2-ethyleneoxyethanol as an initiator and blocking with m-toluene isocyanate was dissolved in 32.5g of water, 0.06g of hydrogen peroxide (30 mass% aqueous solution) was added, and then a mixed solution of 1.8g of acrylic acid, 0.12g of L-ascorbic acid and 0.15g of thioglycolic acid was added dropwise over 1 hour, followed by aging for 1.5 hours after completion of the addition, cooling to room temperature to obtain a viscosity-reducing mother liquor D, and the viscosity-reducing mother liquor D was compounded with the viscosity-reducing mother liquor A and the water-reducing mother liquor TL-01 at a ratio of 4:5:5 to obtain a viscosity-reducing water reducer for pumping.
Example 5
And (3) compounding the viscosity reduction mother liquor A obtained in the example 1 with water reduction mother liquor TL-01 and slump retaining mother liquor TLB-01 according to the ratio of 23:3:4 to obtain the viscosity reduction type water reducer for the cloth type tubular pile concrete.
Test example 1: performance test of viscosity-reducing Water reducer for Sleeper in example 1 and example 2
In order to examine the effect of the synthesized viscosity-reducing polycarboxylate superplasticizer on the fluidity of high-strength concrete, a series of performances of the samples of examples 1 and 2 and the naphthalene series superplasticizer under the condition of reaching the same concrete are tested. The test is carried out according to GB/T8077-2000 'homogeneity test method for concrete admixtures', W/C is 0.27, and the mixing amount is 1.2%. A Wanshan high-performance naphthalene water reducer (solid content is 10%) with relatively good commercial performance is selected as a comparison example 1, and a commercial common polycarboxylic acid water reducer ZiboXin TL-01 is selected as a comparison example 2. The test results are shown in Table 2.
TABLE 1 Sleeper concrete mixing ratio
| Cement | Mineral powder | Sand | Small stone | Big stone | Water (W/C) |
| 4.08 | 0.72 | 6.79 | 2.49 | 9.72 | 0.27 |
TABLE 2 concrete comparison results
As can be seen from Table 2, the viscous polycarboxylic acid water reducer synthesized by the invention has softer concrete viscosity than the conventional naphthalene water reducer, is more convenient for construction, and is approved by terminal factories. In addition, the application examples 1 and 2 are obviously lower in the use amount under the condition of reaching the same concrete state, and the performances such as the initial construction state, the steam curing strength and the like are better than those of the comparative example 1. Compared with the commercial ordinary polycarboxylic acid type water reducing agent TL01 of the comparative example 2, the viscosity reduction advantage is very obvious, the water consumption of concrete is not sensitive, the state is stable, the steam curing strength is higher than TL01 by more than 20%, and the demoulding can be carried out faster and no defect is ensured.
Test example 2: performance test of viscosity reduction type water reducer for pumping type pipe pile in example 3 and example 4
In order to examine the effect of the viscosity-reducing polycarboxylate superplasticizer synthesized in the embodiments 3 and 4 of the invention on the fluidity of the pipe pile concrete, the performances of the pipe pile concrete samples according to different construction processes and the samples in the embodiments 3 and 4 were tested. The test is carried out according to GB/T23476-2009 Pre-tensioned prestressed concrete pipe pile, W/C is 0.28, and Subot water-reducing mother liquor (solid content is 40%) of a high-performance polycarboxylic acid water reducing agent with better market performance is selected as a comparison example 3, and the test results are shown in Table 4.
TABLE 3 Pump-sending type pipe pile concrete mixing ratio
| Cement | Mineral powder | Sand | Small stone | Stone | Water (W/C) |
| 3 | 1.35 | 7.8 | 1.2 | 11.25 | 0.28 |
TABLE 4 concrete comparison results
As can be seen from Table 4, the samples of examples 3 and 4, when applied to concrete at low dosage, exhibit more excellent workability and concrete softness than the common high-performance polycarboxylate superplasticizer, and have better retention performance than the original viscosity-reducing mother liquor.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A liquid phase composition comprising the following components:
(1) one or more than two polymers P selected from the group consisting of polyether macromonomer and small monomer polymers; and
(2) one or more than two water reducing agents Q selected from a water reducing polycarboxylic acid water reducing agent, a slow release polycarboxylic acid water reducing agent and a slump retaining polycarboxylic acid water reducing agent;
with the proviso that the liquid phase composition comprises two or more of the polymers P or two or more of the water reducing agents Q;
preferably, the component (2) does not comprise the component (1).
2. The liquid phase composition of claim 1, wherein:
in the component (1), the polyether macromonomer can be a compound having a structure represented by formula I:
wherein R is1Represents C1-20A hydrocarbon group of (a); for example, R1Represents C1-20Alkyl of (C)2-20Alkenyl of, C2-20Alkynyl of (a); preferably, R1Represents C1-8Alkyl groups of (a); illustratively, R1May be selected from one, two or more of ethyl, propyl and butyl;
[R2O]nin [ R ]2O]May be the same or different and may represent C2-20Alkenyloxy of (a); for example, [ R ]2O]Represents C2-18Alkenyloxy of (A), C2-8Alkenyloxy of (a); exemplarily, [ R ]2O]May be selected from one, two or more of ethyleneoxy, propyleneoxy and butyleneoxy;
n represents the average addition mole number of the oxyalkylene group, and 1. ltoreq. n.ltoreq.300; for example, n may be between 15-300, 25-200, 40-150, 50-130, or 60-100;
R3represents
Wherein R is4Can be selected from alkyl, alkenyl, phenyl, substituted phenyl; for example, R4May be selected from C1-20Alkyl of (C)2-20Alkenyl of, C6-20Phenyl radical of (1), C6-20Substituted phenyl of (a); preferably, R4May be selected from C1-8Alkyl of (C)2-8Alkenyl of, C6-12Phenyl radical of (1), C6-12Substituted phenyl of (a); illustratively, R4Can be selected from one or two of benzyl and substituted benzyl (such as m-tolyl);
preferably, the polyether macromonomer may have a structural formula as shown in any one of the following formulas II, III, IV or V:
in the component (1), the small monomer is a compound shown as a formula VI, and a salt or an anhydride thereof:
wherein A, B, C are identical or different and are independently selected from H, -COOH, the following groups unsubstituted or optionally substituted with one or more-COOH: c1-40Alkyl radical, C1-40Alkoxy radical, C3-20Cycloalkyl radical, C3-20Cycloalkyloxy, 3-20 membered heterocyclyl, 3-20 membered heterocyclyloxy, C6-20Aryl radical, C6-20Aryloxy, 5-20 membered heteroaryl, 5-20 membered heteroaryloxy;
d is-OH;
said C is1-40Alkyl radical, C1-40Alkoxy radical, C3-20Cycloalkyl radical, C3-20Cycloalkyloxy, 3-20 membered heterocyclic ringGroup, 3-20 membered heterocyclyloxy group, C6-20Aryl radical, C6-20Aryloxy, 5-20 membered heteroaryl, 5-20 membered heteroaryloxy may also be further substituted with one or more RSSubstitution;
each RSCan be identical or different and are independently selected from the group consisting of H, -OH, -SH, -CN, -SO3Na、C1-40Alkyl radical, C1-40Alkoxy radical, C3-20Cycloalkyl radical, C3-20Cycloalkyloxy, 3-20 membered heterocyclyl, 3-20 membered heterocyclyloxy, C6-20Aryl radical, C6-20Aryloxy, 5-20 membered heteroaryl, 5-20 membered heteroaryloxy;
preferably, the small monomer is selected from the following compounds or anhydrides thereof: acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid.
3. The liquid phase composition according to claim 1 or 2, wherein the component (1) and/or the component (2) of the liquid phase composition may contain water;
the mass ratio of component (1) to component (2) may be 1:2 to 5:1, for example 1.2:1 to 4:1, 1:2 to 2: 1.
4. The liquid phase composition of any one of claims 1-3, wherein:
the liquid phase composition is a compound water reducing agent and comprises the component (1) and the component (2);
preferably, the liquid phase composition comprises two kinds of the polymers P, and one or more than two kinds of the water reducing agents Q;
preferably, the liquid phase composition comprises one or more than two of the polymers P, and two or more than two of the water reducing agents Q.
5. The liquid phase composition of any one of claims 1 to 4, wherein the component (2) comprises a combination of a water-reducing polycarboxylic acid water-reducing agent and a slow-release polycarboxylic acid water-reducing agent, a combination of a water-reducing polycarboxylic acid water-reducing agent and a slump-retaining polycarboxylic acid water-reducing agent, or a combination of a slow-release polycarboxylic acid water-reducing agent and a slump-retaining polycarboxylic acid water-reducing agent.
6. A process for producing a liquid-phase composition as claimed in any one of claims 1 to 5, which comprises mixing the component (1) and the component (2) to obtain the liquid-phase composition.
7. Use of the liquid phase composition according to any one of claims 1 to 5 as a highstone powder, cement or concrete admixture, preferably as a concrete admixture in similar construction modes of pipe piles and sleepers.
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| CN113912382A (en) * | 2021-10-18 | 2022-01-11 | 唐山市凯伦保温材料有限公司 | Light high-aluminum heat-insulation refractory brick and preparation method thereof |
| CN114907047A (en) * | 2022-06-22 | 2022-08-16 | 宁波新力建材科技有限公司 | Ecological concrete additive and ecological concrete |
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