CN117210166B - Composition for preparing adhesive, preparation method and application thereof - Google Patents
Composition for preparing adhesive, preparation method and application thereof Download PDFInfo
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- CN117210166B CN117210166B CN202311224071.5A CN202311224071A CN117210166B CN 117210166 B CN117210166 B CN 117210166B CN 202311224071 A CN202311224071 A CN 202311224071A CN 117210166 B CN117210166 B CN 117210166B
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- 239000000853 adhesive Substances 0.000 title claims abstract description 65
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 65
- 239000000203 mixture Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004568 cement Substances 0.000 claims abstract description 22
- 239000007864 aqueous solution Substances 0.000 claims abstract description 20
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 15
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims abstract description 14
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 11
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 11
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 11
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 11
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 9
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 6
- 239000000945 filler Substances 0.000 claims abstract description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 6
- 238000004078 waterproofing Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- 239000013530 defoamer Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 10
- 239000006004 Quartz sand Substances 0.000 claims description 6
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- WPJGWJITSIEFRP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrate Chemical compound O.NC1=NC(N)=NC(N)=N1 WPJGWJITSIEFRP-UHFFFAOYSA-N 0.000 claims description 2
- 229920001732 Lignosulfonate Polymers 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 2
- 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 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 2
- 229920005646 polycarboxylate Polymers 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 15
- 238000012360 testing method Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 6
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000011398 Portland cement Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 2
- 206010003591 Ataxia Diseases 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- HIFVAOIJYDXIJG-UHFFFAOYSA-N benzylbenzene;isocyanic acid Chemical class N=C=O.N=C=O.C=1C=CC=CC=1CC1=CC=CC=C1 HIFVAOIJYDXIJG-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical group O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polymethylene Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to the field of building waterproofing, and discloses a composition for preparing an adhesive, the adhesive, a preparation method and application thereof. The composition for preparing the adhesive comprises a composition A, a composition B and a composition C; and the content mass ratio of the combination A to the combination B to the combination C is 1:0.8-1.5:1.2-2; based on the total mass of the combination A, the combination A contains water, an emulsifying agent, diisocyanate and an antifoaming agent I; based on the total mass of the combination B, the combination B contains a polyvinyl alcohol aqueous solution and a silica sol aqueous solution; based on the total mass of the combination C, the combination C contains cement, cellulose ether, a water reducing agent, aluminum chloride, calcium hydroxide, sodium sulfate, a defoaming agent II and a filler. The adhesive provided by the invention has extremely strong bonding strength, and is suitable for tiles with low water absorption.
Description
Technical Field
The invention relates to the field of building waterproofing, in particular to a composition for preparing an adhesive, the adhesive, a preparation method and application thereof.
Background
Buildings such as houses and municipal works, and wall surfaces are often decorated by using glazed tiles, vitrified tiles and other tiles. However, the ceramic tile has low water absorption rate and low tile surface wool porosity, so that ordinary cement is difficult to penetrate into capillary holes to form mechanical anchoring force, and the adhesive force is low to drop the tile. At present, tile back glue is generally adopted to be matched with high-strength tile glue, and the two materials interact to strengthen the interface bonding strength between a cement wall and a tile.
The main functional components of the traditional tile adhesive are cement and rubber powder, and the cement or rubber powder permeates into the cement wall surface and the tile to form mechanical anchoring force to bond the tile and the wall surface together. The tile back glue is an organic water-based polymer emulsion which can permeate into tiles with very small gaps, but the tile back glue is poor in affinity between organic matters and inorganic cement, the bonding strength between the organic matters and the inorganic cement is not high, aging and damage phenomena are easy to occur for a long time, and the tile is sometimes dropped; and the tile back adhesive and the tile adhesive are needed to be used in the tile sticking process, and the two procedures are labor-and material-consuming, and the tile back adhesive needs to be aired for a certain time to be used, so that labor is consumed.
CN102807833a discloses a water-based inorganic silicon-organic silicon-polyurethane adhesive, which consists of a water-based adhesive a component and a curing agent B component, wherein the water-based adhesive a component comprises the following components in parts by weight: silica sol: 55-90 parts; organosilane: 12-20 parts; polyhydroxy compound: 120-200 parts; polyisocyanates: 15-25 parts of a lubricant; emulsifying agent: 3-5 parts; catalyst: 0.5-1.2 parts; powder material: 80-150 parts; deionized water: 900-1200 parts; the curing agent B component is one or more than one mixture selected from diphenylmethane diisocyanate MDI, polymethylene polyphenyl polyisocyanate PAPI and hexamethylene diisocyanate HDI. The silica sol can only penetrate, but can not form silicate gel substance with alkaline substance, and the product is mainly polyurethane organic film forming substance, has low adhesion to tile or cement seven layers, and can not adhere tile.
Disclosure of Invention
The invention aims to solve the problem of low bonding strength when the tile adhesive and the tile back adhesive are used for wall surface to paste tiles in the prior art.
In order to achieve the above object, a first aspect of the present invention provides a composition for preparing an adhesive, the composition comprising a combination a, a combination B and a combination C, wherein the content mass ratio of the combination a, the combination B and the combination C is 1:0.8-1.5:1.2-2;
based on the total mass of the combination A, the combination A contains 75-88wt% of water, 5-10wt% of emulsifying agent, 6-15wt% of diisocyanate and 0.4-1wt% of defoaming agent I;
based on the total mass of the combination B, the combination B contains 55-75wt% of polyvinyl alcohol aqueous solution and 25-45wt% of silica sol aqueous solution; the concentration of the polyvinyl alcohol aqueous solution is 23-27wt%; the mass fraction of the silica sol aqueous solution calculated by silicon dioxide is 23-27wt%, and the average diameter of particles is not more than 20nm;
based on the total mass of the combination C, the combination C contains 10-25wt% of cement, 0.35-0.45wt% of cellulose ether, 0.15-0.25wt% of water reducer, 3-7wt% of aluminum chloride, 0.7-1.2wt% of calcium hydroxide, 0.7-1.2wt% of sodium sulfate, 0.15-0.25wt% of defoamer II and 65-85wt% of filler.
In a second aspect the present invention provides a method of preparing an adhesive, the method being carried out using a composition according to the first aspect of the invention, comprising:
(1) Carrying out first mixing on the combination A to obtain a mixture I; and
performing second mixing on the combination B to obtain a mixture II;
(2) Thirdly mixing the combination C with the mixture I and the mixture II to obtain the adhesive;
the dosage mass ratio of the combination A to the combination B to the combination C is 1:0.8-1.5:1.2-2.
In a third aspect the present invention provides an adhesive prepared by the method of the second aspect.
A fourth aspect of the invention provides the use of the adhesive of the third aspect in waterproofing of buildings.
The adhesive prepared from the adhesive composition can be directly applied to tiles without matching with tile back adhesive, so that corresponding labor and material cost are saved, and the product has extremely strong adhesive strength and is suitable for tiles with low water absorption.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
As described above, the first aspect of the present invention provides a composition for preparing an adhesive, which comprises a combination a, a combination B and a combination C, wherein the content mass ratio of the combination a, the combination B and the combination C is 1:0.8-1.5:1.2-2;
based on the total mass of the combination A, the combination A contains 75-88wt% of water, 5-10wt% of emulsifying agent, 6-15wt% of diisocyanate and 0.4-1wt% of defoaming agent I;
based on the total mass of the combination B, the combination B contains 55-75wt% of polyvinyl alcohol aqueous solution and 25-45wt% of silica sol aqueous solution; the concentration of the polyvinyl alcohol aqueous solution is 23-27wt%; the mass fraction of the silica sol aqueous solution calculated by silicon dioxide is 23-27wt%, and the average diameter of particles is not more than 20nm;
based on the total mass of the combination C, the combination C contains 10-25wt% of cement, 0.35-0.45wt% of cellulose ether, 0.15-0.25wt% of water reducer, 3-7wt% of aluminum chloride, 0.7-1.2wt% of calcium hydroxide, 0.7-1.2wt% of sodium sulfate, 0.15-0.25wt% of defoamer II and 65-85wt% of filler.
Preferably, the content mass ratio of the combination A, the combination B and the combination C is 1:1-1.2:1.45-1.55. The inventor finds that under the preferred specific embodiment, the adhesive prepared by the adhesive composition provided by the invention has higher adhesive strength.
Preferably, the cement is selected from at least one of 42.5R portland cement and 52.5R portland cement.
Preferably, in the combination C, the filler is in a content mass ratio of 1:1-1.5 of a combination of heavy calcium carbonate having a particle average diameter of 55-110 mu m and quartz sand having a particle average diameter of 120-400 mu m. The inventor finds that under the preferred specific embodiment, the adhesive prepared by the adhesive composition provided by the invention has higher adhesive strength.
Preferably, the diisocyanate is selected from at least one of aliphatic diisocyanate, alicyclic diisocyanate and aromatic diisocyanate. For example, the diisocyanate may be at least one selected from Toluene Diisocyanate (TDI), diphenylmethane diisocyanate (MDI), hexamethylene Diisocyanate (HDI), isophorone diisocyanate (IPDI), hydrogenated diphenylmethane diisocyanate (HMDI).
Preferably, the combination A comprises 82-88wt% of water, 5.5-8wt% of emulsifying agent, 7-10wt% of diisocyanate and 0.4-1wt% of defoaming agent I based on the total mass of the combination A;
based on the total mass of the combination B, the combination B contains 60-65wt% of polyvinyl alcohol aqueous solution and 35-40wt% of silica sol aqueous solution;
based on the total mass of the combination C, the combination C contains 20-25wt% of cement, 0.35-0.45wt% of cellulose ether, 0.15-0.25wt% of water reducer, 4-6wt% of aluminum chloride, 0.9-1.1wt% of calcium hydroxide, 0.9-1.1wt% of sodium sulfate, 0.15-0.25wt% of defoamer II, 26-35wt% of heavy calcium and 40-45wt% of quartz sand. The inventor finds that under the preferred specific embodiment, the adhesive prepared by the adhesive composition provided by the invention has higher adhesive strength.
Preferably, the emulsifier is at least one selected from the group consisting of fatty alcohol polyoxyethylene ether and alkylphenol polyoxyethylene ether.
Preferably, the cellulose ether is at least one selected from hydroxyethyl methylcellulose and hydroxypropyl methylcellulose.
Preferably, the water reducing agent is at least one selected from polycarboxylate water reducing agents, melamine water reducing agents and lignosulfonate.
Preferably, the defoamer I and the defoamer II are each independently selected from at least one of silicone defoamer and mineral oil defoamer.
As previously mentioned, a second aspect of the present invention provides a method of preparing an adhesive using a composition according to the first aspect, comprising:
(1) Carrying out first mixing on the combination A to obtain a mixture I; and
performing second mixing on the combination B to obtain a mixture II;
(2) Thirdly mixing the combination C with the mixture I and the mixture II to obtain the adhesive;
the dosage mass ratio of the combination A to the combination B to the combination C is 1:0.8-1.5:1.2-2.
Preferably, the first mixing is performed under stirring conditions, the first mixing conditions at least satisfying: the stirring speed is 800-1200rpm, the stirring time is 60-80min, and the stirring temperature is 23-25 ℃.
Preferably, the second mixing is performed under stirring conditions, the conditions of the second mixing at least satisfying: 800-1200rpm for 10-30min at 23-25deg.C.
Preferably, the third mixing is performed under stirring conditions, the conditions of the third mixing at least satisfying: 800-1200rpm for 10-30min at 23-25deg.C.
As previously mentioned, a third aspect of the present invention provides an adhesive prepared by the method of the second aspect.
As previously mentioned, a fourth aspect of the present invention provides the use of the adhesive of the third aspect described above for waterproofing a building.
The present invention will be described in detail by examples.
In the examples below, unless otherwise specified, all of the experimental apparatus, reagents and materials involved were commercially available, and all of the reagents were analytically pure products.
In the examples below, 10g is represented per 1wt% unless otherwise specified.
Raw materials
Emulsifier I: fatty alcohol polyoxyethylene ether, the brand (model) is: MOA-3, available from Guangdongnan Hui New Material Co., ltd;
emulsifier II: alkylphenol ethoxylates, the number (model) is: OP-10, available from Guangdong south Hei New Material Co., ltd;
a diisocyanate: diphenylmethane diisocyanate available from Shanghai Gao Ming chemical Co., ltd;
defoamer I: organosilicon defoamer CI-0560, available from Guangdong south Hei New Material Co., ltd;
defoamer II: oily polyurethane defoamer Z-1133, available from Shanghai Yuehan Wan New Material Co., ltd;
silica sol aqueous solution I: the mass fraction of the silica is 25wt%, the average diameter of the particles is 18nm, and the number (model) is: SW-25, available from Biotechnology Inc. of Hongxin, henan;
silica sol aqueous solution II: the mass fraction of the silica is 20wt%, the average diameter of the particles is 20nm, and the number (model) is: SW-20, purchased from Biotechnology Inc. of Hongxin, henan;
and (3) cement: the brand is PO.42.5, purchased from Anhui conch Cement Co., ltd;
cellulose ether: hydroxyethyl methylcellulose, available from Shandong Heda group Co., ltd;
water reducing agent: melamine, purchased from sunny day chemical technology limited in ataxia;
heavy calcium I: the average particle diameter was 74 μm, purchased from the company Jinpeng fine chemical Co., ltd;
heavy calcium II: the average particle diameter was 38 μm, purchased from the company Jinpeng fine chemical Co., ltd;
quartz sand I: the average particle diameter was 150 μm, available from Guangdong Yifeng mining company;
quartz sand II: the particles had an average diameter of 100 μm and were purchased from Guangdong Yifeng mining company.
Example 1
This example illustrates the adhesive of the present invention according to the formulation and process parameters of table 1 and prepared as follows.
The method for preparing the adhesive comprises the following steps:
(1) Carrying out first mixing on the combination A to obtain a mixture I;
(2) Performing second mixing on the combination B to obtain a mixture II;
(3) And thirdly mixing the combination C with the mixture I and the mixture II to obtain the adhesive.
The remaining examples were carried out using procedures similar to those of example 1, except that the formulations and process parameters used in each example were varied, unless otherwise specified, with particular reference to Table 1 (note: the parameters not listed in Table 1 were the same as the corresponding parameters in example 1).
TABLE 1
Comparative example 1
This comparative example was conducted using a procedure similar to example 1, except that this comparative example replaced 23wt% of the aqueous polyvinyl alcohol solution in example 1 with an equal mass of 40wt% aqueous polyvinyl alcohol solution.
The remainder was the same as in example 1.
The adhesive DS1 is obtained.
Comparative example 2
This comparative example was conducted using a procedure similar to example 1, except that the comparative example used an equal mass of aqueous silica sol solution II in place of the aqueous silica sol solution I in example 1.
The remainder was the same as in example 1.
The adhesive DS2 is obtained.
Comparative example 3
This comparative example was conducted using a procedure similar to example 1, except that the amount of combination a, combination B and combination C in this comparative example was 1 by mass: 0.5:2.2.
the remainder was the same as in example 1.
The adhesive DS3 is obtained.
Comparative example 4
This comparative example was conducted using a procedure similar to example 1, except that this comparative example used equal mass of alumina instead of aluminum chloride in example 1.
The remainder was the same as in example 1.
The adhesive DS4 is obtained.
Comparative example 5
This comparative example was conducted using a procedure similar to example 1, except that the cement of example 1 was replaced with metakaolin of equal mass.
The remainder was the same as in example 1.
The adhesive DS5 is obtained.
Test case
The adhesives prepared in examples and comparative examples were subjected to performance test by the same method, and the results are shown in Table 2;
1. the tensile bond strength test criteria were: testing according to the C2 type requirement of JCT 547-2017-ceramic tile adhesive-cement adhesive;
2. the tensile bonding strength after soaking is tested according to the following standard (method): testing according to the C2 type requirement of JCT 547-2017-ceramic tile adhesive-cement adhesive;
3. the tensile bond strength after heat aging was measured as follows: testing according to the C2 type requirement of JCT 547-2017-ceramic tile adhesive-cement adhesive;
4. the test standard (method) of tensile bond strength after freeze thawing cycle is: testing according to the C2 type requirement of JCT 547-2017-ceramic tile adhesive-cement adhesive;
TABLE 2
As can be seen from the results in Table 2, the adhesive prepared by the adhesive composition provided by the invention has stronger bonding strength, the performance index of the adhesive accords with the C2 type of the execution standard JCT 547-2017-ceramic tile adhesive-cement adhesive, and the problems of complex operation and low bonding strength of the two materials of the tile adhesive and the tile back adhesive for wall surface adhesion of the tile are solved.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (10)
1. A composition for preparing an adhesive, which is characterized by comprising a combination A, a combination B and a combination C, wherein the content mass ratio of the combination A to the combination B to the combination C is 1:0.8-1.5:1.2-2;
based on the total mass of the combination A, the combination A contains 75-88wt% of water, 5-10wt% of emulsifying agent, 6-15wt% of diisocyanate and 0.4-1wt% of defoaming agent I;
based on the total mass of the combination B, the combination B contains 55-75wt% of polyvinyl alcohol aqueous solution and 25-45wt% of silica sol aqueous solution; the concentration of the polyvinyl alcohol aqueous solution is 23-27wt%; the mass fraction of the silica sol aqueous solution calculated by silicon dioxide is 23-27wt%, and the average diameter of particles is not more than 20nm;
based on the total mass of the combination C, the combination C contains 10-25wt% of cement, 0.35-0.45wt% of cellulose ether, 0.15-0.25wt% of water reducer, 3-7wt% of aluminum chloride, 0.7-1.2wt% of calcium hydroxide, 0.7-1.2wt% of sodium sulfate, 0.15-0.25wt% of defoamer II and 65-85wt% of filler.
2. The composition according to claim 1, wherein the content mass ratio of the combination a, the combination B and the combination C is 1:1-1.2:1.45-1.55.
3. Composition according to claim 1 or 2, characterized in that in said combination C, the filler is present in a content mass ratio of 1:1-1.5 of a combination of heavy calcium carbonate having a particle average diameter of 55-110 mu m and quartz sand having a particle average diameter of 120-400 mu m.
4. A composition according to any one of claims 1 to 3, wherein the diisocyanate is selected from at least one of aliphatic diisocyanate, cycloaliphatic diisocyanate and aromatic diisocyanate.
5. The composition according to claim 4, wherein the composition A comprises 82-88 wt.% of water, 5.5-8 wt.% of an emulsifier, 7-10 wt.% of a diisocyanate and 0.4-1 wt.% of an antifoaming agent I, based on the total mass of the composition A;
based on the total mass of the combination B, the combination B contains 60-65wt% of polyvinyl alcohol aqueous solution and 35-40wt% of silica sol aqueous solution;
based on the total mass of the combination C, the combination C contains 20-25wt% of cement, 0.35-0.45wt% of cellulose ether, 0.15-0.25wt% of water reducer, 4-6wt% of aluminum chloride, 0.9-1.1wt% of calcium hydroxide, 0.9-1.1wt% of sodium sulfate, 0.15-0.25wt% of defoamer II, 26-35wt% of heavy calcium and 40-45wt% of quartz sand.
6. The composition according to any one of claims 1 to 5, wherein the emulsifier is selected from at least one of fatty alcohol polyoxyethylene ether and alkylphenol polyoxyethylene ether;
and/or the cellulose ether is at least one selected from hydroxyethyl methylcellulose and hydroxypropyl methylcellulose;
and/or the water reducing agent is at least one selected from polycarboxylate water reducing agent, melamine water reducing agent and lignosulfonate.
7. A method for preparing an adhesive, characterized in that it is carried out using a composition according to any one of claims 1 to 6, comprising:
(1) Carrying out first mixing on the combination A to obtain a mixture I; and
performing second mixing on the combination B to obtain a mixture II;
(2) Thirdly mixing the combination C with the mixture I and the mixture II to obtain the adhesive;
the dosage mass ratio of the combination A to the combination B to the combination C is 1:0.8-1.5:1.2-2.
8. The method of claim 7, wherein the first mixing is performed under stirring conditions, the first mixing conditions at least satisfying: stirring at 1200-1600rpm for 60-80min at 23-25deg.C;
and/or, the second mixing is performed under stirring conditions, the conditions of the second mixing at least satisfying: 800-1200rpm for 10-30min at 23-25deg.C;
and/or, the third mixing is performed under stirring conditions, and at least the conditions of the third mixing are satisfied: 800-1200rpm for 10-30min at 23-25deg.C.
9. An adhesive prepared by the method of claim 7 or 8.
10. Use of the adhesive of claim 9 for waterproofing a building.
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| CN117210166A (en) | 2023-12-12 |
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