CN113717657A - High-water-resistance environment-friendly waterproof sealant and preparation method and application thereof - Google Patents
High-water-resistance environment-friendly waterproof sealant and preparation method and application thereof Download PDFInfo
- Publication number
- CN113717657A CN113717657A CN202111127800.6A CN202111127800A CN113717657A CN 113717657 A CN113717657 A CN 113717657A CN 202111127800 A CN202111127800 A CN 202111127800A CN 113717657 A CN113717657 A CN 113717657A
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- China
- Prior art keywords
- water
- waterproof sealant
- asphalt
- anionic
- waterproof
- Prior art date
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- 239000000565 sealant Substances 0.000 title claims abstract description 91
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000010426 asphalt Substances 0.000 claims abstract description 101
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 239000004816 latex Substances 0.000 claims abstract description 59
- 229920000126 latex Polymers 0.000 claims abstract description 59
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 41
- 229920006318 anionic polymer Polymers 0.000 claims abstract description 40
- 239000000654 additive Substances 0.000 claims abstract description 26
- 230000000996 additive effect Effects 0.000 claims abstract description 26
- 239000000839 emulsion Substances 0.000 claims abstract description 26
- 239000000945 filler Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 80
- 125000000129 anionic group Chemical group 0.000 claims description 50
- 239000008149 soap solution Substances 0.000 claims description 37
- -1 polyethylene Polymers 0.000 claims description 31
- 239000002518 antifoaming agent Substances 0.000 claims description 30
- 238000000227 grinding Methods 0.000 claims description 30
- 239000003755 preservative agent Substances 0.000 claims description 30
- 239000002562 thickening agent Substances 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 23
- 239000003995 emulsifying agent Substances 0.000 claims description 19
- 230000002335 preservative effect Effects 0.000 claims description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 12
- 239000012874 anionic emulsifier Substances 0.000 claims description 12
- 230000008961 swelling Effects 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 10
- 239000012875 nonionic emulsifier Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 9
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 8
- 229920000570 polyether Polymers 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical compound O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 5
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 5
- 150000008052 alkyl sulfonates Chemical class 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 239000012153 distilled water Substances 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- 239000002480 mineral oil Substances 0.000 claims description 5
- 235000010446 mineral oil Nutrition 0.000 claims description 5
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 5
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 5
- CSNIZNHTOVFARY-UHFFFAOYSA-N 1,2-benzothiazole Chemical compound C1=CC=C2C=NSC2=C1 CSNIZNHTOVFARY-UHFFFAOYSA-N 0.000 claims description 4
- JIHQDMXYYFUGFV-UHFFFAOYSA-N 1,3,5-triazine Chemical compound C1=NC=NC=N1 JIHQDMXYYFUGFV-UHFFFAOYSA-N 0.000 claims description 4
- 229920001732 Lignosulfonate Polymers 0.000 claims description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 4
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 4
- 239000008235 industrial water Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 4
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004209 oxidized polyethylene wax Substances 0.000 claims description 3
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims description 3
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 150000004996 alkyl benzenes Chemical class 0.000 claims description 2
- 229940077388 benzenesulfonate Drugs 0.000 claims description 2
- 239000005543 nano-size silicon particle Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- OCKPCBLVNKHBMX-UHFFFAOYSA-N butylbenzene Chemical compound CCCCC1=CC=CC=C1 OCKPCBLVNKHBMX-UHFFFAOYSA-N 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 18
- 238000010276 construction Methods 0.000 abstract description 14
- 238000003860 storage Methods 0.000 abstract description 10
- 238000001035 drying Methods 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 5
- 238000004078 waterproofing Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000000084 colloidal system Substances 0.000 description 28
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000002994 raw material Substances 0.000 description 9
- 239000002585 base Substances 0.000 description 8
- 238000005303 weighing Methods 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000003566 sealing material Substances 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002174 Styrene-butadiene Substances 0.000 description 4
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000011115 styrene butadiene Substances 0.000 description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229940023462 paste product Drugs 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- JBJWASZNUJCEKT-UHFFFAOYSA-M sodium;hydroxide;hydrate Chemical compound O.[OH-].[Na+] JBJWASZNUJCEKT-UHFFFAOYSA-M 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J111/00—Adhesives based on homopolymers or copolymers of chloroprene
- C09J111/02—Latex
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J109/00—Adhesives based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09J109/06—Copolymers with styrene
- C09J109/08—Latex
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J125/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Adhesives based on derivatives of such polymers
- C09J125/02—Homopolymers or copolymers of hydrocarbons
- C09J125/04—Homopolymers or copolymers of styrene
- C09J125/08—Copolymers of styrene
- C09J125/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
- C09J195/005—Aqueous compositions, e.g. emulsions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention relates to a waterproof sealant and a preparation method and application thereof, wherein the waterproof sealant comprises emulsified asphalt, anionic polymer latex, a super-water-resistant additive, hydrophobic filler and an auxiliary agent; wherein the addition amount of the emulsified asphalt is 15-35% based on 100% of the total mass of the waterproof sealant; the addition amount of the anionic polymer latex is 20% -45%; the additive amount of the super water-resistant additive is 1% -10%; the addition amount of the hydrophobic filler is 20-45%; wherein the super water-resistant additive is an anionic polymer emulsion. The waterproof sealing paste has the advantages of environmental protection, no harm, high solid content, excellent water resistance, excellent storage stability, high drying speed, excellent construction performance, simple construction process, adaptability to the diversity and complexity of materials at the joints of building components, effective performance of the product on various materials at the joints of the building components, and long-term sealing and waterproofing by the synergistic effect of the components and the proportion of the waterproof sealing paste.
Description
Technical Field
The invention belongs to the technical field of waterproof building materials, and particularly relates to a high-water-resistance environment-friendly waterproof sealant as well as a preparation method and application thereof.
Background
The building leakage is a prominent common building quality disease, and improper construction of detail nodes is one of the main reasons for the building leakage. The structure of the detail node is complex, and the materials are various, such as cement, aluminum, plastic, glass and other members, so the processing difficulty of the structure of the detail node is large.
In actual construction material selection, the detailed node structures are mostly treated by adopting sealing materials such as common waterproof paint, ointment and the like, the sealing materials have weak cohesiveness or other physical properties, such as poor sealing treatment, bubble water swelling and shrinkage cracking in a short term, and unshelling, edge warping, brittle fracture and the like with a bonding surface in a long term. The reason for this is that, in addition to the components of the sealing material itself, the compatibility between the sealing material and the joint base material is also concerned, and if the compatibility between the selected sealing material and the base material is poor, the interface is easily peeled off after a long time, and a water leakage path is formed.
For example, patent CN111793436A discloses a one-component asphalt-based water-based non-cured rubber asphalt waterproof coating, which is mainly prepared from the following components in parts by weight: 10-40 parts of asphalt, 10-40 parts of softening oil, 30-50 parts of water, 5-20 parts of anionic polymer latex, 1-3 parts of anionic emulsifier, 1-3 parts of nonionic emulsifier, 0.1-0.3 part of stabilizer, 0.1-0.3 part of defoamer, 0.1-0.3 part of preservative, 0.1-2.5 parts of thickener and 5-15 parts of inorganic filler. Although the waterproof coating has good adhesive property with waterproof coiled materials and various base materials, the self cohesion of the waterproof coating is small, the deviation of the self cohesion with the adhesive property index of different base materials cannot meet the use requirement, the solid content of the waterproof coating is only 68 percent at most, the heat resistance is deviated, the product can flow due to high temperature in summer, and the long-term water resistance is still required to be improved.
Therefore, the waterproof sealing paste product with high water resistance and environmental protection, which is environment-friendly, harmless, excellent in water resistance, high in solid content, excellent in storage stability, high in drying speed, excellent in construction performance, simple in construction process, suitable for the diversity and complexity of materials at the joints of building components, and capable of ensuring effective and long-term sealing and waterproofing of various materials at the joints of the building components, becomes an urgent task.
Disclosure of Invention
The invention provides a high-water-resistance environment-friendly waterproof sealant, and a preparation method and application thereof, aiming at overcoming the problems of poor sealing effect, swelling and shrinkage cracking of foam, unshelling, edge warping, brittle fracture and the like of an adhesive surface of the conventional waterproof sealant.
In order to achieve the purpose, the technical scheme is as follows:
the invention provides a waterproof sealant which comprises emulsified asphalt, anionic polymer latex, a super-water-resistant additive, a hydrophobic filler and an auxiliary agent; wherein the addition amount of the emulsified asphalt is 15-35% of the total mass of the waterproof sealant; the addition amount of the anionic polymer latex is 20-45% of the total mass of the waterproof sealant; the addition amount of the super water-resistant additive is 1-10% of the total mass of the waterproof sealant; the addition amount of the hydrophobic filler is 20-45% of the total mass of the waterproof sealant; wherein the super water-resistant additive is an anionic polymer emulsion.
Preferably, the solid content of the waterproof sealing paste is more than or equal to 70%.
Preferably, the super-water-resistant additive is one or any two or more selected from anionic polyethylene wax emulsion, anionic oxidized polyethylene wax emulsion, anionic polypropylene wax emulsion, anionic oxidized polypropylene wax emulsion or anionic polytetrafluoroethylene emulsion.
Preferably, the addition amount of the super water-resistant additive is 3-8% of the total mass of the waterproof sealant.
Preferably, the anionic polymer latex is one or any two or more selected from anionic neoprene latex, anionic styrene-butadiene latex, hydrophobic modified anionic acrylic latex or hydrophobic modified anionic styrene-acrylic latex.
Preferably, the addition amount of the anionic polymer latex is 30 to 40 percent of the total mass of the waterproof sealant.
Preferably, the hydrophobic filler is one or any two or more of hydrophobic modified nano calcium carbonate, hydrophobic modified nano talcum powder, hydrophobic modified nano silicon dioxide or sub-nano polytetrafluoroethylene particles.
Preferably, the addition amount of the hydrophobic filler is 30-40% of the total mass of the waterproof sealant.
Preferably, the emulsified asphalt comprises the following components in a mass ratio of 10-30: 8-25: 1-3: 0.5-1: 0.1-0.3 of asphalt, water, an anionic emulsifier, a nonionic emulsifier and a stabilizer.
Further preferably, the mass ratio of the asphalt to the water is 15-20: 8-15.
Further preferably, the asphalt is one or any two or more selected from 30# asphalt, 50# asphalt, 70# asphalt, 90# asphalt and 110# asphalt.
Further preferably, the water is one or any two or more selected from distilled water, deionized water, tap water, industrial water or river water.
Further preferably, the anionic emulsifier is one or any two or more selected from an alkylbenzene sulfonate type emulsifier, an alkyl sulfonate type emulsifier or a lignosulfonate type emulsifier.
Further preferably, the nonionic emulsifier is one or any two or more selected from long-chain fatty alcohol polyoxyethylene ether, alkylphenol ethoxylates, fatty acid polyoxyethylene ester or polyether emulsifier.
Further preferably, the stabilizer is one or any two or more selected from sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose or polyvinyl alcohol.
Preferably, the auxiliary agent comprises one or any two or more of a defoaming agent, a preservative and a hydrophobically modified thickening agent.
Further preferably, the mass ratio of the defoaming agent to the preservative to the hydrophobically modified thickener is 0.1-0.3: 0.1-2.5.
Further preferably, the defoaming agent is one or any two or more selected from mineral oil defoaming agents, silicone defoaming agents, polyether defoaming agents and polysiloxane defoaming agents.
Further preferably, the preservative is one or any two or more selected from isothiazolinone preservatives, formaldehyde-releasing preservatives, benzisothiazoline preservatives or s-triazine preservatives.
Further preferably, the hydrophobically modified thickener is one or any two or more selected from a hydrophobically modified alkali swelling thickener, a hydrophobically modified alkali swelling associative thickener or a hydrophobically modified polyurethane thickener.
The second aspect of the invention provides a preparation method of the waterproof sealant, which comprises the steps of uniformly mixing the hydrophobic filler and the anionic polymer latex, uniformly mixing the hydrophobic filler, the emulsified asphalt and the super-water-resistant additive, and finally adding the auxiliary agent to uniformly mix the mixture to obtain the waterproof sealant.
Preferably, the temperature of the mixing process is controlled to be 10-50 ℃.
Preferably, the emulsified asphalt is prepared by the following steps:
(1) uniformly mixing an anionic emulsifier, a nonionic emulsifier, a stabilizer and water to prepare a soap solution, and adjusting the pH of the soap solution to 10-12;
(2) heating the asphalt to 130-140 ℃, and stirring for 0.5-1 hour;
(3) and (3) controlling the temperature of the soap solution to be 30-80 ℃, controlling the temperature of the asphalt treated in the step (2) to be 100-150 ℃, then mixing and grinding the soap solution and the asphalt for 1-3min, controlling the discharging temperature of the emulsified asphalt to be 50-95 ℃, and naturally cooling to obtain the emulsified asphalt.
The third aspect of the invention provides the application of the waterproof sealing paste in waterproof caulking of buildings.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the waterproof sealing paste has the advantages of environmental protection, no harm, high solid content, excellent water resistance, excellent storage stability, high drying speed, excellent construction performance, simple construction process, adaptability to the diversity and complexity of materials at the joints of building components, effective performance of the product on various materials at the joints of the building components, and long-term sealing and waterproofing by the synergistic effect of the components and the proportion of the waterproof sealing paste.
Detailed Description
Specific embodiments of the present invention will be described below.
The invention provides a waterproof sealant, which comprises emulsified asphalt, anionic polymer latex, a super-water-resistant additive, hydrophobic filler and an auxiliary agent; wherein the addition amount of the emulsified asphalt is 15-35% of the total mass of the waterproof sealant; the addition amount of the anionic polymer latex is 20-45% of the total mass of the waterproof sealant; the addition amount of the super water-resistant additive is 1-10% of the total mass of the waterproof sealant; the addition amount of the hydrophobic filler is 20-45% of the total mass of the waterproof sealant; wherein the super water-resistant additive is an anionic polymer emulsion.
The waterproof sealing paste is a water-based product, takes water as a solvent, is a single-component formula, is free of volatilization of harmful substances, and is more friendly to environment and constructors. Moreover, the solid content of the waterproof sealant can reach 70% or more, for example, 70% -80%, and the waterproof sealant still has excellent storage stability under high solid content. The waterproof sealing paste has high solid content and high drying speed, and can be constructed at normal temperature, so that the construction cost is saved. In addition, the waterproof sealant can adapt to the diversity and complexity of materials at the joints of the building components, and can ensure that the product can effectively and permanently seal and prevent water for various materials at the joints of the building components.
According to some embodiments, the super water-resistant additive preferably adopts a polymer which is excellent in high-temperature performance and water resistance, has properties close to those of wax and has a contact angle with water larger than 135 degrees as a main component, and on one hand, the super water-resistant additive can generate a phenomenon of mutual crossing of molecular chains by physical blending with asphalt, an anionic polymer and the like, so that the stability of the waterproof sealant is higher, and the solid content of the waterproof sealant can be improved as much as possible under the condition of ensuring the storage stability; on the other hand, in the drying process of the waterproof sealing paste, the resin component in the super-water-resistant additive can partially migrate to the surface of the coating, so that the surface of the coating shows a certain lotus effect, the coating is prevented from being invaded by water, and the water resistance of the waterproof sealing paste is further improved. According to some preferred embodiments, the super water-resistant additive is one or any two or more selected from the group consisting of an anionic polyethylene wax emulsion, an anionic oxidized polyethylene wax emulsion, an anionic polypropylene wax emulsion, an anionic oxidized polypropylene wax emulsion, and an anionic polytetrafluoroethylene emulsion.
Further, the addition amount of the super water-resistant additive is 3-8% of the total mass of the waterproof sealant, such as 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5%, 7%, 7.5%. If the addition amount of the super-water-resistant additive is too low, the water resistance of the waterproof sealant is insufficient; if the amount is too high, the adhesion of the waterproof sealant to the substrate and the low-temperature performance are impaired.
According to some embodiments, the anionic polymer latex is preferably based on a polymer that is flexible, has good low temperature properties and resilience, has excellent water resistance, and has properties closer to rubber. According to some specific and preferred embodiments, the anionic polymer latex is one or any two or more selected from anionic polychloroprene latex, anionic styrene-butadiene latex, hydrophobically modified anionic acrylic latex or hydrophobically modified anionic styrene-acrylic latex.
Further, the amount of the anionic polymer latex added is 30% to 40%, for example, 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39% of the total mass of the waterproof sealant. If the dosage of the anionic polymer latex is too low, the low-temperature performance of the waterproof sealant at-10 ℃ is difficult to reach the standard, and the adhesive property of the waterproof sealant with various substrates is insufficient; if the amount is too high, the cost of the product is significantly increased.
According to some embodiments, the hydrophobic filler is one or any two or more selected from the group consisting of hydrophobically modified nano calcium carbonate, hydrophobically modified nano talc, hydrophobically modified nano silica and sub-nano polytetrafluoroethylene particles. The preferred hydrophobic filler helps to improve the water resistance and storage stability of the waterproof sealant.
Further, the addition amount of the hydrophobic filler is 30-40% of the total mass of the waterproof sealant, such as 31%, 32%, 33%, 34%, 35%, 36%, 37%, 38%, 39%. If the dosage of the hydrophobic filler is too low, the solid content of the waterproof sealant is low, so that the construction time is prolonged; if the amount of the hydrophobic filler is too high, the storage stability of the waterproof sealant is not good, and various properties of the product may be significantly reduced.
According to some embodiments, the emulsified asphalt is self-formulated slow-breaking slow-setting anionic emulsified asphalt. Preferably, the emulsified asphalt comprises the following components in a mass ratio of 10-30: 8-25: 1-3: 0.5-1: 0.1-0.3 of asphalt, water, a slow-breaking slow-setting anionic emulsifier, a nonionic emulsifier and a stabilizer. Further preferably, the mass ratio of the asphalt to the water is 15-20: 8-15, and more preferably 15-20: 8-10.
Wherein, the asphalt can be selected according to specific needs, convenient and fast material obtaining and component aspects. Preferably, the asphalt is one or any two or more selected from 30# asphalt, 50# asphalt, 70# asphalt, 90# asphalt and 110# asphalt.
Further preferably, the water is one or any two or more selected from distilled water, deionized water, tap water, industrial water or river water.
Further preferably, the anionic emulsifier adopts Ca2+、Mg2+A slow-breaking and slow-setting anionic emulsifier with excellent metal ion stability and water resistance. For example, the anionic emulsifier is one or two or more selected from alkyl benzene sulfonate type emulsifiers, alkyl sulfonate type emulsifiers, and lignin sulfonate type emulsifiers.
Further preferably, the nonionic emulsifier is one or any two or more selected from long-chain fatty alcohol polyoxyethylene ether, alkylphenol ethoxylates, fatty acid polyoxyethylene ester or polyether emulsifier.
Further preferably, the stabilizer is one or any two or more selected from sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose or polyvinyl alcohol. By using these preferred kinds of stabilizers, the storage stability of the anionic emulsified asphalt and the waterproof sealant can be further improved.
Preferably, the auxiliary agent comprises one or any two or more of a defoaming agent, a preservative and a hydrophobically modified thickening agent. Further preferably, the mass ratio of the defoaming agent to the preservative to the hydrophobically modified thickener is 0.1-0.3: 0.1-2.5.
Further preferably, the defoaming agent is one or any two or more selected from mineral oil defoaming agents, silicone defoaming agents, polyether defoaming agents and polysiloxane defoaming agents. By adopting the preferred types of defoaming agents, the defoaming agent can be better matched with other components in the formula so as to further improve the defoaming effect.
Further preferably, the preservative is one or any two or more selected from isothiazolinone preservatives, formaldehyde-releasing preservatives, benzisothiazoline preservatives or s-triazine preservatives. The preferred type of preservative is better matched with the other components in the formula so as to have better preservative effect.
Further preferably, the hydrophobically modified thickener is one or any two or more selected from a hydrophobically modified alkali swelling thickener, a hydrophobically modified alkali swelling associative thickener or a hydrophobically modified polyurethane thickener. The preferable hydrophobic modified thickening agent adjusts the viscosity and the water resistance of the waterproof sealing paste, and has low cost.
The preparation method of the waterproof sealant comprises the following steps:
1) weighing the raw materials according to the weight part ratio, adding the anionic emulsifier, the nonionic emulsifier and the stabilizer into water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 10-12 for later use;
2) heating the asphalt to 140 ℃ and stirring for 0.5-1 h for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the asphalt obtained in the step 2) for 1-3min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding the super-water-resistant filler into the anionic polymer latex, and uniformly mixing the super-water-resistant filler and the anionic polymer latex to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), adding a super-water-resistant additive, and uniformly mixing; adding a defoaming agent and a preservative into the mixture, and uniformly mixing; and slowly adding the hydrophobic modified thickening agent, and uniformly mixing to obtain the high-water-resistance environment-friendly waterproof sealant.
Preferably, NaOH water solution with the mass concentration of 8-12% is used for adjusting the pH value of the soap solution in the step (1).
Preferably, in the step 3), the temperature of the soap solution before the mixing and grinding by the colloid mill is 30-80 ℃ by heating, and the temperature of the modified asphalt before the mixing and grinding by the colloid mill is 100-150 ℃ by heating; and controlling the discharging temperature of the emulsified asphalt to be 50-95 ℃ in the mixing and grinding process of the colloid mill.
Preferably, the temperature of the mixing process in step 4) and step 5) is controlled between 10-50 ℃.
The preferred temperature parameters make the waterproof sealant more excellent in performance.
The preparation process of the waterproof sealant is simple, convenient and quick, and consumes less time. Wherein, the optimized technological parameters ensure the full interaction of the components of the waterproof coating and ensure the excellent performance of the waterproof sealant.
Compared with the prior art, the waterproof sealant disclosed by the invention has the following advantages:
(1) the high-water-resistance environment-friendly waterproof sealant is a novel water-based environment-friendly building waterproof sealant product, can be applied to blade coating construction at normal temperature, and has excellent anti-sagging performance, excellent storage stability, excellent adhesion performance with different base materials, quick drying performance and excellent water resistance;
(2) the high-water-resistance environment-friendly waterproof sealant has high solid content, high water volatilization speed and short drying time, has excellent adhesive property with asphalt-based waterproof coiled materials and various base materials such as cement, aluminum plates, plastics and the like, and is particularly suitable for waterproof and joint-plugging construction of buildings; the construction process is simple, environment-friendly, nontoxic and pollution-free, and is a product of 'seven-minute product, three-minute construction';
(3) the high-water-resistance environment-friendly waterproof sealant adopts water as a solvent, does not contain harmful organic volatile solvents such as benzene, toluene and xylene, is environment-friendly and pollution-free, and does not have any health hazard to constructors.
The technical solutions of the present invention are described in detail below with reference to specific examples so that those skilled in the art can better understand and implement the technical solutions of the present invention, but the present invention is not limited to the scope of the examples.
The raw materials in the following embodiments can be obtained commercially, and the solid content of the raw materials such as latex, emulsion and the like can be selected according to needs, so that the solid content of the waterproof sealant can be ensured to reach 70% or more.
Comparative example
The high-water-resistance environment-friendly waterproof sealant is mainly prepared from the following components in parts by weight:
the preparation method of the high-water-resistance environment-friendly waterproof sealant comprises the following steps of:
1) weighing the raw materials according to the weight part ratio, adding a carboxylate emulsifier, long-chain fatty alcohol-polyoxyethylene ether and sodium carboxymethylcellulose into distilled water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 11;
2) heating No. 70 asphalt to 135 ℃, and stirring for 0.8 hour for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the asphalt obtained in the step 2) for 1min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding calcium carbonate into the anionic acrylic latex, and uniformly mixing the calcium carbonate and the anionic acrylic latex to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), and uniformly mixing; adding mineral oil defoaming agent and isothiazolinone preservative into the mixture, and mixing uniformly; slowly adding polyacrylic acid thickening agent, and uniformly mixing to obtain the waterproof sealant.
In the step 3), the temperature of the soap solution before the mixing and grinding through the colloid mill is 60 ℃ by heating, and the temperature of the modified asphalt before the mixing and grinding through the colloid mill is 120 ℃ by heating; controlling the discharging temperature of the emulsified asphalt to be 80 ℃ in the mixing and grinding process of the colloid mill; the temperature of the mixing process in the step 4) and the step 5) is controlled between 30 ℃.
Example 1
The invention relates to a high-water-resistance environment-friendly waterproof sealant which is mainly prepared from the following components in parts by weight:
the preparation method of the high-water-resistance environment-friendly waterproof sealant comprises the following steps of:
1) weighing the raw materials according to the weight part ratio, adding an alkylbenzene sulfonate emulsifier, long-chain fatty alcohol-polyoxyethylene ether and sodium carboxymethylcellulose into distilled water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 11;
2) heating the 30# asphalt to 135 ℃, and stirring for 0.8 hour for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the asphalt obtained in the step 2) for 2min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding the hydrophobic modified nano calcium carbonate into the anionic neoprene latex, uniformly mixing the hydrophobic modified nano calcium carbonate and the anionic neoprene latex, adding the anionic polyethylene wax emulsion, and uniformly stirring to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), and uniformly mixing; adding mineral oil defoaming agent and isothiazolinone preservative into the mixture, and mixing uniformly; and slowly adding the hydrophobically modified alkali swelling thickener, and uniformly mixing to obtain the high-water-resistance environment-friendly waterproof sealant.
In the step 3), the temperature of the soap solution before the mixing and grinding through the colloid mill is 60 ℃ by heating, and the temperature of the modified asphalt before the mixing and grinding through the colloid mill is 120 ℃ by heating; controlling the discharging temperature of the emulsified asphalt to be 80 ℃ in the mixing and grinding process of the colloid mill; the temperature of the mixing process in the step 4) and the step 5) is controlled between 30 ℃.
Example 2
The invention relates to a high-water-resistance environment-friendly waterproof sealant which is mainly prepared from the following components in parts by weight:
the preparation method of the high-water-resistance environment-friendly waterproof sealant comprises the following steps of:
1) weighing the raw materials according to the weight part ratio, adding an alkyl sulfonate emulsifier, alkylphenol polyoxyethylene ether and hydroxyethyl cellulose into deionized water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 10;
2) heating No. 50 asphalt to 140 ℃, and stirring for 0.5 hour for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the asphalt obtained in the step 2) for 3min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding the hydrophobic modified nano talcum powder into the anionic styrene-butadiene latex, uniformly mixing the hydrophobic modified nano talcum powder and the anionic styrene-butadiene latex, adding the anionic polypropylene wax emulsion, and uniformly stirring to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), and uniformly mixing; then adding an organic silicon defoaming agent and a formaldehyde-releasing preservative into the mixture, and uniformly mixing; and slowly adding the hydrophobically modified alkali swelling associative thickener, and uniformly mixing to obtain the high-water-resistance environment-friendly waterproof sealant.
In the step 3), the temperature of the soap solution before mixing and grinding through a colloid mill is 30 ℃ by heating, and the temperature of the modified asphalt before mixing and grinding through the colloid mill is 150 ℃ by heating; controlling the discharging temperature of the emulsified asphalt to be 50 ℃ in the mixing and grinding process of the colloid mill; the temperature of the mixing process in the step 4) and the step 5) is controlled between 50 ℃.
Example 3
The invention relates to a high-water-resistance environment-friendly waterproof sealant which is mainly prepared from the following components in parts by weight:
the preparation method of the high-water-resistance environment-friendly waterproof sealant comprises the following steps of:
1) weighing the raw materials according to the weight part ratio, adding the lignosulfonate emulsifier, the fatty acid polyoxyethylene ester and the hydroxypropyl methyl cellulose into tap water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 12;
2) heating the 70# asphalt to 140 ℃ and stirring for 1 hour for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the asphalt obtained in the step 2) for 1min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding the hydrophobically modified nano-silica into the hydrophobically modified anionic acrylic latex, uniformly mixing the hydrophobically modified nano-silica and the hydrophobically modified anionic acrylic latex, adding the anionic polytetrafluoroethylene emulsion, and uniformly stirring to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), and uniformly mixing; then adding polyether defoaming agent and benzisothiazoline preservative into the mixture, and mixing the mixture evenly; and slowly adding the hydrophobically modified polyurethane thickening agent, and uniformly mixing to obtain the high-water-resistance environment-friendly waterproof sealant.
In the step 3), the temperature of the soap solution before the mixing and grinding through the colloid mill is 80 ℃ by heating, and the temperature of the modified asphalt before the mixing and grinding through the colloid mill is 100 ℃ by heating; controlling the discharging temperature of the emulsified asphalt to be 95 ℃ in the mixing and grinding process of the colloid mill; the temperature of the mixing process in the step 4) and the step 5) is controlled between 10 ℃.
Example 4
The invention relates to a high-water-resistance environment-friendly waterproof sealant which is mainly prepared from the following components in parts by weight:
the preparation method of the high-water-resistance environment-friendly waterproof sealant comprises the following steps of:
1) weighing the raw materials according to the weight part ratio, adding the alkylbenzene sulfonate emulsifier, the polyether emulsifier and the polyvinyl alcohol into industrial water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 10;
2) heating 90# asphalt to 130 ℃, and stirring for 1 hour for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the modified asphalt obtained in the step 2) for 2min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding the sub-nano polytetrafluoroethylene particles into the hydrophobically modified anionic styrene-acrylic latex, uniformly mixing the two, adding the anionic polyethylene wax emulsion, and uniformly stirring to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), and uniformly mixing; then adding a polysiloxane defoaming agent and an s-triazine preservative into the mixture, and uniformly mixing; and slowly adding the hydrophobically modified alkali swelling thickener, and uniformly mixing to obtain the high-water-resistance environment-friendly waterproof sealant.
In the step 3), the temperature of the soap solution before the mixing and grinding through the colloid mill is 80 ℃ by heating, and the temperature of the modified asphalt before the mixing and grinding through the colloid mill is 100 ℃ by heating; controlling the discharging temperature of the emulsified asphalt to be 50 ℃ in the mixing and grinding process of the colloid mill; the temperature of the mixing process in the step 4) and the step 5) is controlled between 50 ℃.
Example 5
The invention relates to a high-water-resistance environment-friendly waterproof sealant which is mainly prepared from the following components in parts by weight:
the preparation method of the high-water-resistance environment-friendly waterproof sealant comprises the following steps of:
1) weighing the raw materials according to the weight part ratio, adding an alkyl sulfonate emulsifier, long-chain fatty alcohol-polyoxyethylene ether and hydroxyethyl cellulose into river water, uniformly mixing to prepare a soap solution, and adjusting the pH value of the soap solution to 12;
2) heating 110# asphalt to 130 ℃, and stirring for 1 hour for later use;
3) mixing and grinding the soap solution obtained in the step 1) and the asphalt obtained in the step 2) for 1min by a colloid mill, and naturally cooling to room temperature to obtain emulsified asphalt;
4) slowly adding the hydrophobically modified nano-silica into the hydrophobically modified anionic acrylic latex, uniformly mixing the hydrophobically modified nano-silica and the hydrophobically modified anionic acrylic latex, adding the anionic polyethylene wax emulsion, and uniformly stirring to obtain modified anionic polymer latex;
5) slowly adding the emulsified asphalt prepared in the step 3) into the modified anionic polymer latex prepared in the step 4), and uniformly mixing; then adding an organic silicon defoaming agent and an isothiazolinone preservative into the mixture, and uniformly mixing; and slowly adding the hydrophobically modified alkali swelling associative thickener, and uniformly mixing to obtain the high-water-resistance environment-friendly waterproof sealant.
In the step 3), the temperature of the soap solution before mixing and grinding through a colloid mill is 30 ℃ by heating, and the temperature of the modified asphalt before mixing and grinding through the colloid mill is 150 ℃ by heating; controlling the discharging temperature of the emulsified asphalt to be 50 ℃ in the mixing and grinding process of the colloid mill; the temperature of the mixing process in the step 4) and the step 5) is controlled between 50 ℃.
Performance test experimental data:
high-water-resistance environment-friendly waterproof sealant performance test
1) The high-water-resistance environment-friendly waterproof sealing paste of each embodiment is subjected to relevant index detection according to detection methods in standards JGT 501-2016 (joint of building element) waterproof sealing paste, GBT 16777-2008 (test method for building waterproof coating) and JC1066-2008 (limit for harmful substances in building waterproof coating), and the detection results are shown in Table 1:
TABLE 1 high water resistance environmental protection waterproof sealing paste performance test results
The detection results of the bonding performance parameters in table 1 show that the high-water-resistance environment-friendly waterproof sealant has excellent bonding performance with various construction base layers (base surfaces).
2) In addition, the high-water-resistance environment-friendly waterproof sealing paste of each embodiment is stored in a sealed manner at room temperature for 6 months, has no bad phenomena such as demulsification, gelation and agglomeration, and has excellent storage stability.
Second, high water resistance environmental protection waterproof sealing paste water resistance test
The properties of the comparative example and the products of examples 1 to 5 were selected and compared, wherein the water absorption rate performance index was measured according to the method of 6.15 in GBT 19250-. From table 2, it can be seen that the product of the present application has excellent water resistance, and the water resistance can substantially meet the standards of the oil-based polyurethane product.
TABLE 2 test results of water resistance of high water resistance environmental protection waterproof sealant
Third, product harmful substance limit test
TABLE 3 test results of the amount of harmful substances in the product
As can be seen from Table 3, the volatile harmful substances of the product are few, and the product is absolutely safe and environment-friendly.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
Claims (14)
1. A waterproof sealant is characterized in that: the asphalt emulsion comprises emulsified asphalt, anionic polymer latex, a super-water-resistant additive, hydrophobic filler and an auxiliary agent; wherein the addition amount of the emulsified asphalt is 15-35% of the total mass of the waterproof sealant; the addition amount of the anionic polymer latex is 20-45% of the total mass of the waterproof sealant; the addition amount of the super-water-resistant additive is 1-10% of the total mass of the waterproof sealant; the addition amount of the hydrophobic filler is 20-45% of the total mass of the waterproof sealant; wherein the super water-resistant additive is an anionic polymer emulsion.
2. The waterproof sealant according to claim 1, wherein: the solid content of the waterproof sealing paste is more than or equal to 70 percent.
3. The waterproof sealant according to claim 1, wherein: the super-water-resistant additive is one or any two or more than two of anionic polyethylene wax emulsion, anionic oxidized polyethylene wax emulsion, anionic polypropylene wax emulsion, anionic oxidized polypropylene wax emulsion or anionic polytetrafluoroethylene emulsion; and/or the addition amount of the super-water-resistant additive is 3-8% of the total mass of the waterproof sealant.
4. The waterproof sealant according to claim 1, wherein: the anionic polymer latex is one or any two or more of anionic neoprene latex, anionic butylbenzene latex, hydrophobic modified anionic acrylic latex or hydrophobic modified anionic styrene-acrylic latex; and/or the addition amount of the anionic polymer latex is 30-40% of the total mass of the waterproof sealant.
5. The waterproof sealant according to claim 1, wherein: the hydrophobic filler is one or two or more than two of hydrophobic modified nano calcium carbonate, hydrophobic modified nano talcum powder, hydrophobic modified nano silicon dioxide or sub-nano polytetrafluoroethylene particles; and/or the addition amount of the hydrophobic filler is 30-40% of the total mass of the waterproof sealant.
6. The waterproof sealant according to claim 1, wherein: the emulsified asphalt comprises the following components in a mass ratio of 10-30: 8-25: 1-3: 0.5-1: 0.1-0.3 of asphalt, water, an anionic emulsifier, a nonionic emulsifier and a stabilizer.
7. The waterproof sealant according to claim 6, wherein: the mass ratio of the asphalt to the water is 15-20: 8-15.
8. The waterproof sealant according to claim 6 or 7, characterized in that: the asphalt is one or any two or more selected from 30# asphalt, 50# asphalt, 70# asphalt, 90# asphalt or 110# asphalt; and/or the presence of a gas in the gas,
the water is one or any two or more selected from distilled water, deionized water, tap water, industrial water or river water; and/or the presence of a gas in the gas,
the anionic emulsifier is one or two or more of alkyl benzene sulfonate type emulsifier, alkyl sulfonate type emulsifier or lignin sulfonate type emulsifier; and/or the presence of a gas in the gas,
the nonionic emulsifier is one or two or more of long-chain fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylates, fatty acid-polyoxyethylene ester or polyether emulsifier; and/or the presence of a gas in the gas,
the stabilizer is one or two or more of sodium carboxymethylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose or polyvinyl alcohol.
9. The waterproof sealant according to claim 1, wherein: the auxiliary agent comprises one or any two or more of a defoaming agent, a preservative and a hydrophobically modified thickening agent.
10. The waterproof sealant according to claim 9, wherein: the mass ratio of the defoaming agent to the preservative to the hydrophobically modified thickener is 0.1-0.3: 0.1-2.5; and/or the presence of a gas in the gas,
the defoaming agent is one or any two or more of mineral oil defoaming agent, organic silicon defoaming agent, polyether defoaming agent or polysiloxane defoaming agent; and/or the presence of a gas in the gas,
the preservative is one or any two or more of isothiazolinone preservatives, formaldehyde releasing preservatives, benzisothiazoline preservatives or s-triazine preservatives; and/or the presence of a gas in the gas,
the hydrophobic modified thickener is one or two or more than two of hydrophobic modified alkali swelling thickeners, hydrophobic modified alkali swelling associated thickeners or hydrophobic modified polyurethane thickeners.
11. A method for producing the waterproof sealant according to any one of claims 1 to 10, characterized by: and uniformly mixing the hydrophobic filler with the anionic polymer latex, uniformly mixing the hydrophobic filler with the emulsified asphalt and the super-water-resistant additive, and finally adding the auxiliary agent to uniformly mix to obtain the waterproof sealant.
12. The method of claim 11, wherein: the temperature of the mixing process is controlled to be 10-50 ℃.
13. The method of claim 11, wherein: the emulsified asphalt is prepared by the following steps:
(1) uniformly mixing an anionic emulsifier, a nonionic emulsifier, a stabilizer and water to prepare a soap solution, and adjusting the pH of the soap solution to 10-12;
(2) heating the asphalt to 130-140 ℃, and stirring for 0.5-1 hour;
(3) and (3) controlling the temperature of the soap solution to be 30-80 ℃, controlling the temperature of the asphalt treated in the step (2) to be 100-150 ℃, then mixing and grinding the soap solution and the asphalt for 1-3min, controlling the discharging temperature of the emulsified asphalt to be 50-95 ℃, and naturally cooling to obtain the emulsified asphalt.
14. Use of the waterproof sealant according to any one of claims 1 to 10 in waterproof caulking of buildings.
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|---|---|---|---|
| CN202111127800.6A CN113717657B (en) | 2021-09-26 | 2021-09-26 | High-water-resistance environment-friendly waterproof sealant and preparation method and application thereof |
| PCT/CN2022/108521 WO2023045553A1 (en) | 2021-09-26 | 2022-07-28 | Highly water-resistant environmentally-friendly waterproof sealant, preparation method therefor and application thereof |
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| CN202111127800.6A CN113717657B (en) | 2021-09-26 | 2021-09-26 | High-water-resistance environment-friendly waterproof sealant and preparation method and application thereof |
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| CN202111127800.6A Active CN113717657B (en) | 2021-09-26 | 2021-09-26 | High-water-resistance environment-friendly waterproof sealant and preparation method and application thereof |
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| WO (1) | WO2023045553A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114133795A (en) * | 2021-12-13 | 2022-03-04 | 胜利油田大明新型建筑防水材料有限责任公司 | Water-emulsion type modified asphalt waterproof sealing material and preparation method thereof |
| CN115386238A (en) * | 2022-10-14 | 2022-11-25 | 山东海韵沥青有限公司 | Anionic emulsified asphalt and preparation method thereof |
| CN115558309A (en) * | 2022-12-06 | 2023-01-03 | 四川金兴邑都建筑材料有限公司 | Processing method of waterproof sealing paste with excellent water resistance and asphalt on back water surface |
| WO2023045553A1 (en) * | 2021-09-26 | 2023-03-30 | 江苏凯伦建材股份有限公司 | Highly water-resistant environmentally-friendly waterproof sealant, preparation method therefor and application thereof |
| CN116333680A (en) * | 2023-05-31 | 2023-06-27 | 四川金兴邑都建筑材料有限公司 | Preparation method of water-based environment-friendly creep caulking sealant |
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| WO2023045553A1 (en) * | 2021-09-26 | 2023-03-30 | 江苏凯伦建材股份有限公司 | Highly water-resistant environmentally-friendly waterproof sealant, preparation method therefor and application thereof |
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| CN115386238A (en) * | 2022-10-14 | 2022-11-25 | 山东海韵沥青有限公司 | Anionic emulsified asphalt and preparation method thereof |
| CN115558309A (en) * | 2022-12-06 | 2023-01-03 | 四川金兴邑都建筑材料有限公司 | Processing method of waterproof sealing paste with excellent water resistance and asphalt on back water surface |
| CN116333680A (en) * | 2023-05-31 | 2023-06-27 | 四川金兴邑都建筑材料有限公司 | Preparation method of water-based environment-friendly creep caulking sealant |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023045553A1 (en) | 2023-03-30 |
| CN113717657B (en) | 2023-11-28 |
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