CN111087874A - Waterproof sealant for nodes of high-molecular coiled material and preparation method of waterproof sealant - Google Patents
Waterproof sealant for nodes of high-molecular coiled material and preparation method of waterproof sealant Download PDFInfo
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- CN111087874A CN111087874A CN201911376808.9A CN201911376808A CN111087874A CN 111087874 A CN111087874 A CN 111087874A CN 201911376808 A CN201911376808 A CN 201911376808A CN 111087874 A CN111087874 A CN 111087874A
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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
- C09D133/00—Coating compositions 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; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D7/20—Diluents or solvents
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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
- C09D7/61—Additives non-macromolecular inorganic
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- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- 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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a node waterproof sealant for a high polymer coiled material and a preparation method thereof, wherein the node waterproof sealant for the high polymer coiled material comprises the following components in parts by weight: 18-38 parts of low Tg acrylate copolymer emulsion, 5-18 parts of self-crosslinking acrylate emulsion, 5-15 parts of butylbenzene emulsion, 5-17 parts of tackifying emulsion, 30-45 parts of filler, 0.1-0.5 part of dispersing agent, 0.1-0.4 part of AMP-95, 3-10 parts of water, 0.1-0.5 part of cellulose ether, 0.1-0.3 part of antiseptic mildew inhibitor and 0.1-0.5 part of defoaming agent. The waterproof sealant for the nodes of the high polymer coiled material has strong bonding force on various materials, particularly has excellent sealing effect on the node parts of the high polymer coiled materials such as HDPE, TPO, PVC and the like, does not contain organic solvents, and is completely green and environment-friendly.
Description
Technical Field
The invention relates to the technical field of waterproof building materials, in particular to a node waterproof sealant for a high polymer coiled material and a preparation method thereof.
Background
Generally, ninety percent of the leakage points of the building waterproofing work are located at the node parts. The joint part is often complicated in structure and various in interface materials, so that the problem of sealing and water proofing is always a non-negligible factor. With the development of the building industry and materials, various practical materials have been developed for the waterproof sealing problem of the joint, such as polyurethane sealant, silicone sealant, polysulfide rubber, modified asphalt sealant and other various sealing materials. However, these materials have strict construction requirements, are difficult to bond with a wet base surface, have poor bonding performance to plastic pipelines, metal, glass and the like, or have high price and contain solvents, so the materials are not beneficial to environmental protection.
With the continuous development and popularization of the polymer coiled material, the application of the polymer coiled material in the field of waterproof engineering is more and more extensive. The raw materials (HDPE, TPO, PVC and the like) of the high-molecular coiled material are weak in polarity, the surface of the high-molecular coiled material is lack of active groups and is relatively smooth, and common sealant belongs to polar materials, and the high-molecular coiled material and the common sealant are difficult to react or have poor compatibility, so that the waterproof sealing treatment of the nodes of the high-molecular coiled material is difficult. For example, the high polymer coiled material is fixed by a metal pressing strip at the head closing position of the wall surface, but the sealing is not effective, and rainwater can still permeate to cause water channeling; when adjacent polymer coiled materials are tiled, the hot welding, the hot melt adhesive, the butyl rubber, the neoprene and other methods are mostly used for overlapping, but extra sealing treatment cannot be carried out at the overlapping position, so that poor sealing is easily caused, and the waterproof effect is influenced.
Disclosure of Invention
The invention aims to overcome at least one defect of the prior art and provides the node waterproof sealant for the high polymer coiled material, which has strong bonding force on various materials, particularly has excellent sealing effect on the node parts of the high polymer coiled materials such as HDPE, TPO, PVC and the like, does not contain organic solvent, and is completely green and environment-friendly.
The technical scheme adopted by the invention is as follows:
a node waterproof sealant for a high polymer coiled material comprises the following components in parts by weight:
wherein the low Tg acrylic ester copolymer emulsion is an acrylic acid copolymer emulsion with a glass transition temperature (Tg) lower than-40 ℃, and the solid content is 45-65%.
All emulsions in the node waterproof sealant for the high polymer coiled material provided by the invention are anionic or nonionic, are prepared from low Tg acrylic acid copolymer emulsion, self-crosslinking acrylate emulsion, styrene-butadiene emulsion and tackifying emulsion as main raw materials, have the molecular polarity close to that of the high polymer coiled material, have good surface permeability, and can effectively enhance the sealing waterproof capability of nodes and interface parts of the high polymer coiled material. The low Tg acrylic ester copolymer emulsion has softer molecular chain and strong surface viscosity, can well penetrate and wet a high-molecular coiled material, increases mechanical riveting on the surface of the high-molecular coiled material, thereby obtaining high interface bonding strength and can fully wet a filler; the self-crosslinking acrylic ester is acrylic resin which can be crosslinked into a net structure by polymer chains during film forming, and the self-crosslinking acrylic resin can obviously improve the water resistance and the solvent resistance of a coating film, improve the mechanical strength and the heat resistance and have excellent adhesive force to various base materials such as plastics, wood, metal and the like.
The low Tg acrylic acid copolymer emulsion with low surface polarity, softness and strong permeability of the high molecular coiled material can be effectively wetted and bonded, and can be well spread on a wet base surface; the polarity of the tackified emulsion is close to that of the molecules of the high-molecular coiled material, and the interfacial permeability of the tackified emulsion to the high-molecular coiled material can also be increased; the self-crosslinking acrylic ester emulsion and the styrene-butadiene emulsion make up for the problem of insufficient cohesive strength of the low Tg acrylic acid copolymer emulsion in the aspects of elasticity and rigidity, so that a tough and compact coating can be formed only by matching various different resin emulsions in a proper proportion, and the waterproof sealing effect is achieved. In addition, the interface between the polymer coiled material and the coiled material, and the interface between the polymer coiled material and the metal and the concrete are composed of different base materials, the waterproof sealant needs to have bonding capability and certain strength for the base materials at the same time, and the tackifying emulsion can increase the bonding effect on the polymer coiled material and also can increase the bonding capability of the concrete, the plastic, the metal and the glass. Meanwhile, the solid content of the emulsion is generally not high, the solid content of the emulsion is improved by adding the filler, the infiltration of the emulsion is less influenced, and the internal strength and the drying speed can be further improved so as to adapt to the actual construction requirement.
Preferably, the low Tg acrylate copolymer emulsion is one or more of crema plexitol a 315, plexitol a 7700, plexitol L4801, plexitol L4804, plexitol L4805, builka BLJ5591, and BLJ 5592.
Preferably, the self-crosslinking acrylate emulsion is an all-acrylic copolymer emulsion, and the solid content is 40-65%. Preferably, the Tg of the self-crosslinking acrylate emulsion is-25-5 ℃. Further preferably, the self-crosslinking acrylate emulsion is one or more of Dismantane Neocryl A-1127, Bordeaux BLJ-968M and Yinyang RC-3716.
Preferably, the styrene-butadiene emulsion is butadiene-styrene copolymer latex with solid content of 45-60%. Preferably, the Tg of the styrene-butadiene emulsion is 5-20 ℃, and the solid content is 45-60%. Further preferably, the styrene-butadiene latex is one or more of basf Styrofan ECO 7623, shengxio C3615, Xinma Lipaton SB 29Y57, Xinhui BS-402.
Preferably, the tackifying emulsion is one or more of rosin emulsion, modified rosin resin emulsion, terpene emulsion, aqueous petroleum resin emulsion, modified terpene resin emulsion and polyisobutylene emulsion. More preferably, the tackifying emulsion is one or more of American Lout Snowtack SE 780G, Snowtack SE 780K, Snowtack SE 724G, Islaman Tacolyn5002 and Tacolyn 3400.
Preferably, the filler is one or more of ultrafine barium sulfate or coarse whiting and titanium dioxide. More preferably, the filler is an ultrafine filler having a mesh number of 1000.
The preparation method of the joint waterproof sealant for the high polymer coiled material comprises the following steps:
s1, adding the low Tg acrylic acid copolymer emulsion, the self-crosslinking acrylate emulsion, the styrene-butadiene emulsion and the tackifying emulsion, and stirring at normal temperature for 3-10 minutes;
s2, dissolving cellulose ether in water, adding the cellulose ether into the system obtained in the step S1, and stirring for 3-10 minutes;
s3, adding the dispersing agent, AMP-95 and the defoaming agent into the system in the step S2 in sequence, and stirring for 3-10 minutes;
s4, adding the filler into the system obtained in the step S3, and stirring for 20-40 minutes;
and S5, adding the antiseptic and mildew preventive into the system of the step S4, uniformly stirring and discharging. Specifically, stirring to the material is even indicates that there is not the large granule reunion phenomenon in the material, and various materials are fully dispersed, and the accessible extension stirring time realizes the intensive mixing with improving the stirring rotational speed among the actual operation to make the material even.
Preferably, high speed stirring is used in step S4. In the invention, the filler is added and stirred at high speed at the same time in the step S4, so that the filler can be prevented from agglomerating and can be fully dispersed, the high-speed stirring in the invention means that the stirring speed exceeds 800r/min, but the stirring speed is not more than 1500r/min in consideration of the operation safety and the practicability, so the high-speed stirring in the step S4 means that the stirring speed is 800-1500 r/min.
Compared with the prior art, the invention has the beneficial effects that: the node waterproof sealant for the high-molecular coiled material is prepared by taking low-Tg acrylic acid copolymer emulsion, self-crosslinking acrylate emulsion, styrene-butadiene emulsion and tackifying emulsion as main raw materials, has the advantages of molecular polarity close to that of the high-molecular coiled material and good surface permeability, can effectively enhance the sealing and waterproof capabilities of nodes and interface parts of the high-molecular coiled material, is an aqueous product, can be directly constructed on a wet base surface, and has good adhesion to common base materials such as concrete, plastics, metal, glass and the like, so that the node waterproof sealant is favorable for sealing and waterproofing at the joint parts of the high-molecular coiled material and the concrete base material and the like; the joint waterproof sealant for the high polymer coiled material has relatively high solid content and short drying time, and meets the construction requirements.
Detailed Description
The examples of the present invention are provided for illustrative purposes only and are not to be construed as limiting the invention.
Example 1
A node waterproof sealant for a high polymer coiled material comprises the following components in parts by weight:
25 parts of low Tg acrylate copolymer emulsion (PLEXTOL A315);
9 parts of self-crosslinking acrylate emulsion (Neocryl A-1127);
10 parts of butylbenzene emulsion (Lipaton SB 29Y 57);
12 parts of tackifying emulsion (Snowtack SE 780G);
39 parts of a filler (1000-mesh superfine barium sulfate);
0.4 part of a dispersant;
AMP-950.2 parts;
3.6 parts of water;
0.4 part of cellulose ether;
0.1 part of antiseptic and mildew inhibitor;
0.3 part of defoaming agent.
The preparation method of the joint waterproof sealant for the high polymer coiled material comprises the following steps:
s1, adding the low Tg acrylic acid copolymer emulsion, the self-crosslinking acrylate emulsion, the styrene-butadiene emulsion and the tackifying emulsion, and stirring for 5 minutes at normal temperature;
s2, dissolving cellulose ether in water, adding the cellulose ether into the system of the step S1, and stirring for 5 minutes;
s3, adding the dispersing agent, AMP-95 and the defoaming agent into the system in the step S2 in sequence, and stirring for 5 minutes;
s4, adding the filler into the S3 system and stirring for 25 minutes;
and S5, adding the antiseptic and mildew preventive into the system of the step S4, uniformly stirring and discharging.
Example 2
A node waterproof sealant for a high polymer coiled material comprises the following components in parts by weight:
30 parts of low Tg acrylate copolymer emulsion (PLEXTOL A315);
12 parts of self-crosslinking acrylate emulsion (Neocryl A-1127);
7 parts of styrene-butadiene emulsion (Lipaton SB 29Y 57);
8 parts of tackifying emulsion (Snowtack SE 780G);
37 parts of a filler (1000-mesh superfine barium sulfate);
0.3 part of a dispersant;
AMP-950.3 parts;
4.6 parts of water;
0.3 part of cellulose ether;
0.2 part of antiseptic and mildew inhibitor;
0.3 part of defoaming agent.
The preparation process of the joint waterproof sealant for the polymer coil is the same as that of the embodiment 1, and the details are omitted here.
Example 3
A node waterproof sealant for a high polymer coiled material comprises the following components in parts by weight:
32 parts of low Tg acrylate copolymer emulsion (PLEXTOL A315);
7 parts of self-crosslinking acrylate emulsion (Neocryl A-1127);
6 parts of styrene-butadiene emulsion (Lipaton SB 29Y 57);
6 parts of a tackifying emulsion (Snowtack SE 780G);
42 parts of a filler (1000-mesh superfine barium sulfate);
0.5 part of a dispersant;
AMP-950.3 parts;
5.4 parts of water;
0.2 part of cellulose ether;
0.2 part of antiseptic and mildew inhibitor;
0.4 part of defoaming agent.
The preparation process of the joint waterproof sealant for the polymer coil is the same as that of the embodiment 1, and the details are omitted here.
Example 4
A node waterproof sealant for a high polymer coiled material comprises the following components in parts by weight:
36 parts of low Tg acrylate copolymer emulsion (Baolijia BLJ 5591);
5 parts of self-crosslinking acrylate emulsion (Baolijia BLJ-968M);
14 parts of styrene-butadiene emulsion (Styrofan ECO 7623);
10 parts of tackifying emulsion (Snowtack SE 780K);
30 parts of a filler (titanium dioxide);
0.2 part of a dispersant;
AMP-950.4 parts;
3.4 parts of water;
0.5 part of cellulose ether;
0.3 part of antiseptic and mildew-proof agent;
0.2 part of defoaming agent.
The preparation process of the joint waterproof sealant for the polymer coil is the same as that of the joint waterproof sealant for the polymer coil in example 1, and the details are omitted here.
Example 5
A node waterproof sealant for a high polymer coiled material comprises the following components in parts by weight:
18 parts of low Tg acrylate copolymer emulsion (PLEXTOL L4804);
15 parts of self-crosslinking acrylate emulsion (Yinyang RC-3716);
8 parts of butylbenzene emulsion (Shengxi ao C3615);
17 parts of tackifying emulsion (Istman Tacolyn 5002);
34 parts of a filler (titanium dioxide);
0.1 part of a dispersant;
AMP-950.2 parts;
7.2 parts of water;
0.2 part of cellulose ether;
0.1 part of antiseptic and mildew inhibitor;
0.2 part of defoaming agent.
The preparation process of the joint waterproof sealant for the polymer coil is the same as that of the joint waterproof sealant for the polymer coil in example 1, and the details are omitted here.
Comparative example 1
A waterproof sealant, whose composition and preparation were substantially the same as those of example 1, except that in comparative example 1, the low Tg acrylic acid ester copolymer emulsion (PLEXTOL A315) of example 1 was replaced with Baolijia BLJ-5619(Tg of-20 ℃ C., solid content 50%)
The waterproof sealing paste for node for polymeric coil described in examples 1 to 5 and the waterproof sealing paste of comparative example 1 were subjected to performance tests. The test results are shown in Table 1.
TABLE 1
According to the experimental results, the bonding capability of the joint waterproof sealant for the polymer coil provided by the invention with plastic, aluminum plate, glass and cement mortar exceeds the standard requirement (refer to JG/T501-2016 (joint waterproof sealant for building element) and the peel strength of the joint waterproof sealant for the polymer coil with different materials, such as HDPE, TPO, PVC and the like, is higher (refer to JCT 482-1992 (polyurethane building sealant)). Comparative example 1 also shows that the raw materials have a great influence on the adhesion between the waterproof sealant for node of polymer coil and the substrate, for example, improper selection of the acrylate copolymer emulsion can result in the decrease of the adhesion of the adhesive polymer coil to many substrates. The surface drying of the sealing paste can be realized within 2h, and the solid drying can be realized within 4 h. Therefore, the waterproof sealant for the nodes of the polymer coiled material is not only suitable for bonding of various base materials, but also can be used for sealing and waterproofing treatment of the polymer coiled material and other nodes.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (6)
1. The waterproof sealant for the nodes of the high polymer coiled material is characterized by comprising the following components in parts by weight:
wherein the low Tg acrylic ester copolymer emulsion is an acrylic acid copolymer emulsion with the glass transition temperature lower than-40 ℃, and the solid content is 45-65%.
2. The waterproof sealant for nodes of high polymer coils according to claim 1, wherein the self-crosslinking acrylate emulsion is an all-acrylic copolymer emulsion, and the solid content is 40-65%.
3. The waterproof sealant for nodes of polymer coils as claimed in claim 1, wherein the styrene-butadiene emulsion is butadiene-styrene copolymer latex with a solid content of 45-60%.
4. The waterproof sealant for node of polymer coil according to claim 1, wherein the tackifying emulsion is one or more of rosin emulsion, modified rosin resin emulsion, terpene emulsion, aqueous petroleum resin emulsion, modified terpene resin emulsion, and polyisobutylene emulsion.
5. The waterproof sealant for nodes of polymer coils according to claim 1, wherein the filler is one or more of ultrafine barium sulfate or coarse whiting and titanium dioxide.
6. The method for preparing the joint waterproof sealant for the polymer coil according to any one of claims 1 to 5, comprising the steps of:
s1, adding the low Tg acrylic acid copolymer emulsion, the self-crosslinking acrylate emulsion, the styrene-butadiene emulsion and the tackifying emulsion, and stirring at normal temperature for 3-10 minutes;
s2, dissolving cellulose ether in water, adding the cellulose ether into the system obtained in the step S1, and stirring for 3-10 minutes;
s3, adding the dispersing agent, AMP-95 and the defoaming agent into the system in the step S2 in sequence, and stirring for 3-10 minutes;
s4, adding the filler into the system obtained in the step S3, and stirring for 20-40 minutes;
and S5, adding the antiseptic and mildew preventive into the system of the step S4, uniformly stirring and discharging.
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Cited By (1)
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| CN114213909A (en) * | 2022-01-06 | 2022-03-22 | 广东家实多集团有限公司 | Liquid coil coating |
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| CN114213909A (en) * | 2022-01-06 | 2022-03-22 | 广东家实多集团有限公司 | Liquid coil coating |
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