CN113502126A - Aqueous base layer treating agent composition, aqueous base layer treating agent, preparation method and application thereof - Google Patents
Aqueous base layer treating agent composition, aqueous base layer treating agent, preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/43—Thickening agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/04—Polymer mixtures characterised by other features containing interpenetrating networks
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Abstract
The invention relates to the technical field of building waterproofing, and discloses a water-based base course treating agent composition, a water-based base course treating agent, and a preparation method and application thereof. The aqueous base layer treating agent composition contains the following components which are stored in a mixed manner or independently: the emulsified asphalt comprises emulsified asphalt, water, SBS emulsion, a pH regulator, a defoaming agent and a thickening agent, wherein the emulsified asphalt is anionic emulsified asphalt, and the SBS emulsion is interpenetrating polymer network emulsion of SBS and acrylic ester. According to the invention, emulsified asphalt, SBS emulsion, a thickening agent, a defoaming agent and a pH regulator are compounded in a synergistic manner, so that the formed water-based base layer treating agent can be effectively integrated with the asphalt waterproof coiled material, the bonding strength between the emulsified asphalt and the SBS emulsion is enhanced, the existing standard requirements can be met after long-term water soaking, and the water channeling possibility is effectively reduced.
Description
Technical Field
The invention relates to the technical field of building waterproofing, in particular to a water-based base course treating agent composition, a water-based base course treating agent, and a preparation method and application thereof.
Background
The waterproof of the building is an effective means for prolonging the service life of the building, the waterproof of the building is divided into material waterproof and structural waterproof, the material waterproof is a passage for blocking water by building materials so as to achieve the waterproof purpose or enhance the anti-leakage capability, such as coiled material waterproof, film waterproof, concrete and cement mortar rigidity, clay and lime soil waterproof and the like, wherein the asphalt coiled material waterproof is the most main material waterproof, but the direct paving of the asphalt coiled material on a base layer can easily cause the loose bonding between the coiled material and the base layer, and because the base layer has high moisture content, the coiled material seals moisture in the waterproof layer after construction, and the coiled material bulges after being heated and is also easy to generate hollowing.
At present, in order to avoid the phenomena that the coiled material is not firmly bonded with a base layer and a waterproof layer is hollowed, a coating, namely a base layer treating agent, needs to be coated on the base layer in advance before waterproof construction, and the base layer treating agent can improve the bonding force between an asphalt waterproof material and a concrete base layer.
The current base course treating agent is mainly divided into an oily base course treating agent and a water-based base course treating agent, the base course treating agents can enhance the binding force between the waterproof material and the base course, and can seal the moisture of the base course, thereby effectively improving the service life of the waterproof layer of the coiled material. Among them, the oily base treatment agent has a defect of poor environmental protection, and thus the application range of the oily base treatment agent is limited. The water-based base layer treating agent becomes a research hotspot of scholars at home and abroad due to the excellent environmental protection performance.
CN105694494A discloses emulsified asphalt and a preparation method thereof, and a water-based base layer treating agent for asphalt waterproof coiled materials and a preparation method thereof, wherein the water-based base layer treating agent is formed by adopting specific amounts of emulsified asphalt, high polymer emulsion, a defoaming agent and a stabilizer, wherein the emulsified asphalt is obtained by adopting a cationic emulsifier and a nonionic emulsifier to carry out compound treatment according to a certain proportion.
Although the aqueous base layer treating agent obtained by the method has the advantages of good compatibility with a base layer after film forming and drying, high bonding strength with an asphalt waterproof coiled material and high peeling strength, the aqueous base layer treating agent has greatly reduced performance after meeting water due to the use of acrylic emulsion, styrene-acrylic emulsion and the like, is very easy to generate water channeling phenomenon, has high water content, is not compact for sealing the base layer, causes a large amount of water vapor to exist between the base layer and the coiled material, and is very likely to cause water channeling.
Therefore, it is very important to provide an environment-friendly aqueous base layer treating agent with high solid content and excellent bonding property with the asphalt waterproof coiled material.
Disclosure of Invention
The invention aims to overcome the defects of poor environmental protection, low solid content and poor bonding property of the base course treating agent for the asphalt coiled material in the prior art.
As described in the background section, the acrylic acid, styrene-acrylic acid and other emulsions used in the existing water-based base layer treating agent are easy to generate water channeling phenomenon after meeting water, so that a great amount of water vapor exists between the base layer and the coiled material, and the problem of poor bonding property is caused. The inventor of the invention creatively compounds the emulsified asphalt with a specific kind and a specific amount with the SBS emulsion in a synergistic way, and combines with a specific amount of the thickening agent, the defoaming agent and the pH regulator, so that the effective components in the SBS emulsion can be integrated with the asphalt waterproof coiled material, thereby effectively enhancing the bonding strength between the emulsified asphalt and the SBS emulsion and reducing the possibility of water channeling in the using process.
In order to achieve the above object, a first aspect of the present invention provides an aqueous base treatment composition comprising the following components stored in admixture with or independently of two or more of the components: the emulsified asphalt comprises emulsified asphalt, water, SBS emulsion, a pH regulator, a defoaming agent and a thickening agent, wherein the emulsified asphalt is anionic emulsified asphalt, and the SBS emulsion is interpenetrating polymer network emulsion of SBS and acrylic ester;
in the SBS emulsion, the molar ratio of the SBS to the acrylate is 1:0.2 to 5;
based on the total weight of the aqueous base layer treating agent, the content of the emulsified asphalt is 30-70 wt%, the content of the water is 5-30 wt%, the content of the SBS emulsion is 5-40 wt%, the content of the pH regulator is 0.1-1 wt%, the content of the defoaming agent is 0.1-1 wt%, and the content of the thickening agent is 0.1-1.5 wt%.
In a second aspect, the present invention provides a method of preparing an aqueous base treatment agent, the method comprising: mixing the components of the aqueous base layer treatment composition according to the first aspect.
In a third aspect, the present invention provides an aqueous base treatment prepared by the method of the second aspect.
The invention provides an application of the water-based base layer treating agent in the third aspect in asphalt waterproof coiled material construction.
The invention synergistically compounds specific kinds of emulsified asphalt and SBS emulsion, and is matched with thickeners, defoamers, pH regulators and other auxiliaries to form the aqueous base layer treating agent which can be effectively integrated with the asphalt waterproof coiled material into a whole, so that the bonding strength between the emulsified asphalt and the SBS emulsion is enhanced, the emulsified asphalt and the SBS emulsion can also reach the current standard requirement after long-term water soaking, and the water channeling possibility is effectively reduced.
The inventor also finds that the aqueous base layer treating agent obtained by the invention has the characteristics of high solid content and short drying time, effectively shortens the construction period, is an aqueous product, is environment-friendly and is suitable for large-area use.
Detailed Description
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.
In the present invention, the room temperature or room temperature indicates 23 ± 2 ℃.
In the present invention, the amount of water in the aqueous base treatment does not include the amount of water in the SBS emulsion.
As described above, the first aspect of the present invention provides an aqueous base treatment agent composition containing the following components stored in admixture with or independently of two or more of them: the emulsified asphalt comprises emulsified asphalt, water, SBS emulsion, a pH regulator, a defoaming agent and a thickening agent, wherein the emulsified asphalt is anionic emulsified asphalt, and the SBS emulsion is interpenetrating polymer network emulsion of SBS and acrylic ester;
in the SBS emulsion, the molar ratio of the SBS to the acrylate is 1:0.2 to 5;
based on the total weight of the aqueous base layer treating agent, the content of the emulsified asphalt is 30-70 wt%, the content of the water is 5-30 wt%, the content of the SBS emulsion is 5-40 wt%, the content of the PH regulator is 0.1-1 wt%, the content of the defoamer is 0.1-1 wt%, and the content of the thickener is 0.1-1.5 wt%.
Preferably, in said SBS emulsion, said SBS is used in a molar ratio to said acrylate of 1: 0.3-3. The inventors have found that, according to the preferred embodiment, an aqueous base treatment agent having more excellent adhesive strength can be obtained.
Preferably, based on the total weight of the aqueous base layer treating agent, the content of the emulsified asphalt is 40-65 wt%, the content of the water is 5-25 wt%, the content of the SBS emulsion is 10-30 wt%, the content of the pH regulator is 0.15-0.3 wt%, the content of the defoamer is 0.1-0.5 wt%, and the content of the thickener is 0.2-1 wt%.
According to a particularly preferred embodiment, the SBS emulsion is SBS emulsion T-138 available from Shanghai light general chemical company, Inc.
According to a particularly preferred embodiment, the emulsified bitumen is emulsified bitumen CYC-27 from tall oil, Rich oil, Inc. in Foshan.
Preferably, the pH adjuster is at least one selected from the group consisting of acetic acid, formic acid, hydrochloric acid, ammonia water, aqueous dimethylamine solution, and aqueous monomethylamine solution.
According to a particularly preferred embodiment, in the pH adjuster, the concentrations of the acetic acid, the formic acid, and the hydrochloric acid are each 1 to 5 wt%, and the concentrations of the aqueous ammonia, the aqueous dimethylamine solution, and the aqueous monomethylamine solution are each 3 to 10 wt%.
Preferably, the defoamer is selected from silicone based defoamers.
According to a particularly preferred embodiment, the antifoaming agent is selected from at least one of dow AFE1410, middle federal B313, middle federal B314, middle federal B315.
Preferably, the thickening agent is selected from cellulose ether-based thickening agents.
According to a particularly preferred embodiment, the thickener is chosen from at least one of basf C040, dow ASE60, sublong HHBR 250.
As previously described, a second aspect of the present invention provides a method of preparing an aqueous base layer treating agent, the method comprising: mixing the components of the aqueous base layer treatment composition according to the first aspect.
The amount and kind of each component related to the second aspect of the present invention are the same as the content and kind of the corresponding component described in the first aspect of the present invention, and are not described herein again, and those skilled in the art should not be construed as limiting the present invention.
Preferably, the operation of mixing the components comprises the following steps:
(1) first mixing water and a thickening agent to obtain a first mixture;
(2) carrying out second mixing on the first mixture and a pH regulator to obtain a second mixture;
(3) thirdly mixing the second mixture with SBS emulsion and defoaming agent to obtain a third mixture;
(4) and fourthly mixing the third mixture with the emulsified asphalt.
According to a particularly preferred embodiment, in step (1), the conditions of the first mixing are at least such that: the stirring speed is 100-200rpm, the temperature is 5-35 ℃, and the time is 5-10 min.
According to a particularly preferred embodiment, in step (2), the conditions of the second mixing are at least such that: the stirring speed is 100-300rpm, the temperature is 5-35 ℃, and the time is 5-10 min.
According to a particularly preferred embodiment, in step (3), the conditions of the third mixing are at least such that: the stirring speed is 500-1000rpm, the temperature is 5-35 ℃, and the time is 10-20 min.
According to a particularly preferred embodiment, in step (4), the fourth mixing condition is at least satisfied: the stirring speed is 500-1000rpm, the temperature is 5-35 ℃, and the time is 10-20 min.
As described above, the third aspect of the present invention provides an aqueous base treating agent produced by the method of the second aspect.
As described above, the fourth aspect of the present invention provides a use of the aqueous base treating agent of the third aspect in asphalt waterproofing membrane construction.
The present invention will be described in detail below by way of examples. In the following examples, various raw materials used are commercially available ones unless otherwise specified.
Emulsified asphalt: anionic emulsified asphalt, model CYC-27, available from Mount Foshan Miyaoji oil Rich Petroleum Ltd;
emulsified asphalt: the cationic emulsified asphalt is 01 and is purchased from Shandong Senmet waterproof material Co., Ltd;
SBS emulsion: an Interpenetrating Polymer Network (IPN) emulsion of SBS and acrylate, model T-138, available from Shanghai Guangfu chemical Co., Ltd;
SBS emulsion: SBS waterborne resin, the model is Zhangqi, purchased from Guangzhou Kyolin environmental protection technology Co., Ltd;
pH regulator: dimethylamine, available from changzhou polyconcentration chemical;
pH regulator: ammonia purchased from the chemical industry of jujude;
defoaming agent: model number B313, available from federal fine chemicals ltd, guangdong;
defoaming agent: model AFE1410, available from dow, usa;
defoaming agent: model B314, available from Federal Fine chemical Co., Ltd, Guangdong;
defoaming agent: model number B315, available from federal fine chemicals ltd, guangdong;
thickening agent: model number HHBR250, purchased from yatiaolong, usa;
thickening agent: model C040, available from Pasteur shares, Inc.;
thickening agent: model number ASE60, available from dow, usa;
in the following examples, the concentration of the dimethylamine aqueous solution was 5 wt% and the concentration of the ammonia water was 5 wt%.
Example 1
This example illustrates the preparation of an aqueous base treatment composition according to the present invention according to the formulation and process parameters of table 1 and as follows.
The method for preparing the aqueous base layer treating agent comprises the following steps:
(1) stirring water and a thickening agent at 150rpm for 8min at normal temperature to obtain a first mixture;
(2) stirring the obtained first mixture and a pH regulator at the normal temperature for 8min at 150rpm to obtain a second mixture;
(3) stirring the obtained second mixture, SBS emulsion and defoaming agent at normal temperature for 15min at 800rpm to obtain a third mixture;
(4) the third mixture obtained above and emulsified asphalt were stirred at 800rpm for 15min at room temperature to obtain an aqueous base treating agent S1.
Examples 2 to 4 were carried out by the same procedure as in example 1, except that the formulation of the aqueous base treating agent composition and the process parameters were different, unless otherwise specified, as shown in table 1.
Example 5
This example prepared an aqueous base treatment using a similar formulation and method to example 1, except that: in the SBS emulsion, the amount of SBS to the acrylate is in a molar ratio of 1:5, see table 1 for details.
Example 6
This example prepared an aqueous base treatment using a similar formulation and method to example 1, except that: in the SBS emulsion, the amount molar ratio of the SBS to the acrylate is 1:0.2, see table 1 for details.
Comparative example 1
This comparative example prepared an aqueous base treatment using a formulation and method similar to example 1, except that: the anionic emulsified asphalt was replaced by the cationic emulsified asphalt of equal mass, see table 1 for details.
Comparative example 2
This comparative example prepared an aqueous base treatment using a formulation and method similar to example 1, except that: the IPN emulsion of SBS and acrylic ester is replaced by SBS water-based resin with equal mass and concentration, and the specific reference is made in Table 1.
Comparative example 3
This comparative example prepared an aqueous base treatment using a formulation and method similar to example 1, except that: in the SBS emulsion, the amount molar ratio of the SBS to the acrylate is 1:6, see table 1 for details.
TABLE 1
Table 1 (continuation watch)
Test example
The aqueous base treatments prepared in the examples and comparative examples were tested according to standard JCT1069-2008 "base treatment for asphalt-based waterproofing membrane", and the specific test results are shown in table 2.
TABLE 2
As can be seen from Table 1, the water-based base layer treating agent provided by the invention not only has the characteristics of high solid content and short drying time, but also can effectively seal the escape of base layer water vapor when being applied to the asphalt waterproof coiled material, so that the bonding strength between the waterproof coiled material and the base layer is enhanced.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (10)
1. An aqueous base layer treating agent composition characterized by comprising the following components stored in admixture with or independently of two or more of: the emulsified asphalt comprises emulsified asphalt, water, SBS emulsion, a pH regulator, a defoaming agent and a thickening agent, wherein the emulsified asphalt is anionic emulsified asphalt, and the SBS emulsion is interpenetrating polymer network emulsion of SBS and acrylic ester;
in the SBS emulsion, the molar ratio of the SBS to the acrylate is 1:0.2 to 5;
based on the total weight of the aqueous base layer treating agent, the content of the emulsified asphalt is 30-70 wt%, the content of the water is 5-30 wt%, the content of the SBS emulsion is 5-40 wt%, the content of the pH regulator is 0.1-1 wt%, the content of the defoaming agent is 0.1-1 wt%, and the content of the thickening agent is 0.1-1.5 wt%.
2. The aqueous base-layer treatment composition according to claim 1, wherein in the SBS emulsion, the SBS and the acrylates are used in a molar ratio of 1: 0.3-3.
3. The aqueous base treatment composition according to claim 1 or 2, wherein the emulsified asphalt is contained in an amount of 40 to 65 wt%, the water is contained in an amount of 5 to 25 wt%, the SBS emulsion is contained in an amount of 10 to 30 wt%, the pH adjuster is contained in an amount of 0.15 to 0.3 wt%, the defoamer is contained in an amount of 0.1 to 0.5 wt%, and the thickener is contained in an amount of 0.2 to 1 wt%, based on the total weight of the aqueous base treatment composition.
4. The aqueous base layer treatment composition according to any one of claims 1 to 3, wherein the pH adjuster is at least one selected from the group consisting of acetic acid, formic acid, hydrochloric acid, aqueous ammonia, aqueous dimethylamine solution, aqueous monomethylamine solution;
preferably, the defoamer is selected from silicone-based defoamers;
preferably, the thickening agent is selected from cellulose ether-based thickening agents.
5. A method of preparing an aqueous base treatment, the method comprising: mixing the components of the aqueous base layer treatment composition according to any one of claims 1 to 4.
6. The method of claim 5, wherein the act of mixing the components comprises the steps of:
(1) first mixing water and a thickening agent to obtain a first mixture;
(2) carrying out second mixing on the first mixture and a pH regulator to obtain a second mixture;
(3) thirdly mixing the second mixture with SBS emulsion and defoaming agent to obtain a third mixture;
(4) and fourthly mixing the third mixture with the emulsified asphalt.
7. The method of claim 6, wherein in step (1), the first mixing condition at least satisfies: the stirring speed is 100-200rpm, the temperature is 5-35 ℃, and the time is 5-10 min;
preferably, in step (2), the second mixing condition at least satisfies: the stirring speed is 100-300rpm, the temperature is 5-35 ℃, and the time is 5-10 min.
8. The method of claim 6, wherein in step (3), the third mixing condition is at least satisfied: the stirring speed is 500-1000rpm, the temperature is 5-35 ℃, and the time is 10-20 min;
preferably, in step (4), the fourth mixing condition at least satisfies: the stirring speed is 500-1000rpm, the temperature is 5-35 ℃, and the time is 10-20 min.
9. An aqueous base treatment prepared by the method of any one of claims 5 to 8.
10. Use of the aqueous base treatment of claim 9 in asphalt waterproofing coil construction.
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