CN115572541B - Rubber sealing waterproof paint and preparation method thereof - Google Patents

Rubber sealing waterproof paint and preparation method thereof Download PDF

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Publication number
CN115572541B
CN115572541B CN202210035387.9A CN202210035387A CN115572541B CN 115572541 B CN115572541 B CN 115572541B CN 202210035387 A CN202210035387 A CN 202210035387A CN 115572541 B CN115572541 B CN 115572541B
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phosphate
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resin
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CN115572541A (en
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彭磊
龙晓
李建明
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Guangdong Jiuxiang New Material Technology Co ltd
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Guangdong Jiuxiang New Material Technology Co ltd
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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
    • 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
    • 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
    • C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
    • 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
    • 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
    • C09D7/65—Additives macromolecular
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paints Or Removers (AREA)
  • Sealing Material Composition (AREA)

Abstract

The invention relates to the technical field of C09D functional coatings, and in particular provides a rubber sealing waterproof coating and a preparation method thereof. The invention adopts specific petroleum asphalt to emulsify, and adopts high molecular polymer modified by a special method and powdery inorganic compound to blend and modify the petroleum asphalt.

Description

Rubber sealing waterproof paint and preparation method thereof
Technical Field
The invention relates to the technical field of C09D functional coatings, and in particular provides a rubber sealing waterproof coating and a preparation method thereof.
Background
The waterproof paint is used as an important industrial construction raw material and has wide application in the fields of house construction, sewer pipelines, hydraulic engineering and the like, wherein the asphalt waterproof paint plays an important role in the industrial field due to excellent performance. However, the asphalt waterproof paint in the prior art still has the problems of poor stability and durability and easy falling, and the comprehensive performance of the asphalt waterproof paint still needs to be further improved.
The Chinese patent publication No. CN112852292A discloses a water-proof material for preparing modified liquid emulsified asphalt, a using method and a water-proof coating, in the patent, heavy calcium, a thickening agent and aqueous polymer emulsion are adopted to modify asphalt, so that the problems of high construction difficulty, environmental protection and high sealing difficulty along a ditch of the traditional waterproof coiled material are solved, and the problem of poor filling effect of heavy calcium possibly exists in the scheme.
The Chinese patent with the patent publication number of CN112063303A discloses a rubber asphalt waterproof paint and a preparation method thereof, and a coating machine and a stabilizer prepared by adopting a specific method in the patent are used for mainly solving the defect that the rubber asphalt waterproof paint in the prior art is easy to deteriorate under an acidic condition, but petroleum in the scheme possibly has the phenomenon of thermal segregation in the steps (1) and (2), is out of phase, and has the problem of poor thermal stability.
Therefore, there is a need to develop a rubber waterproof coating material having excellent waterproof performance, adhesive performance, penetrating performance and durability, and at the same time, the filler in the system also has excellent filling effect and asphalt has good thermal stability.
Disclosure of Invention
In order to solve the technical problems, the first aspect of the invention provides a rubber sealing waterproof coating and a preparation method thereof, wherein the preparation raw materials comprise the following components in parts by weight: 50-80 parts of petroleum asphalt, 10-20 parts of high-elasticity polymer, 5-10 parts of acrylic polymer, 1-4 parts of emulsifier, 25-40 parts of powdery inorganic compound, 1-5 parts of functional high polymer compound, 0.5-3.5 parts of interfacial tension modifier, 2-5 parts of phosphate compound, 1-3 parts of linking agent, 2-8 parts of solubility regulator, 1-5 parts of compatilizer, 2-6 parts of dispersing agent, 1-5 parts of functional auxiliary agent and 10-20 parts of water.
As a preferable technical scheme of the invention, the penetration of the petroleum asphalt is 40-140mm.
As a more preferable technical scheme of the invention, the penetration of the petroleum asphalt is 60-80mm.
As a preferable technical scheme of the invention, the high-elasticity polymer comprises one or a combination of more of chloroprene rubber, styrene-butadiene rubber, isoprene rubber, ethylene propylene rubber and nitrile rubber.
As a more preferable technical scheme of the invention, the high-elasticity polymer is neoprene and butadiene rubber, and the weight ratio of the neoprene to the butadiene rubber is (2-4): (1.5-2.5).
As a most preferable technical scheme of the invention, the weight ratio of the chloroprene rubber to the butadiene rubber is 3:2.
As a preferable technical scheme of the invention, the Mooney viscosity of the chloroprene rubber is 40-60MU.
As a more preferable embodiment of the present invention, the mooney viscosity of the neoprene rubber is 48MU.
As a preferable technical scheme of the invention, the weight average molecular weight of the butadiene rubber is 10-60 ten thousand.
As a more preferable technical scheme of the invention, the weight average molecular weight of the butadiene rubber is 27-35 ten thousand.
As a preferred embodiment of the present invention, the emulsifier comprises one or a combination of anionic surfactant and nonionic surfactant.
As a preferred embodiment of the present invention, the anionic surfactant comprises one or more of sodium dodecyl benzene sulfonate, sodium stearate, sodium laurylsulfate, sodium laureth sulfate, sodium laurylammonium sulfate, and potassium cetyl phosphate.
As a more preferable technical scheme of the invention, the anionic surfactant is sodium dodecyl benzene sulfonate and sodium stearate, and the mass ratio of the sodium dodecyl benzene sulfonate to the sodium stearate is (1-2): (0.5-1).
As a most preferable technical scheme of the invention, the mass ratio of the sodium dodecyl benzene sulfonate to the sodium stearate is 1.5:0.5.
As a preferred technical scheme of the invention, the nonionic surfactant comprises one or more of sorbitan monostearate, fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene, fatty acid polyoxyethylene ester and block polyoxyethylene-polyoxypropylene ether.
As a preferable technical scheme of the invention, the particle size of the powdery inorganic compound is 800-2200 meshes.
As a more preferable embodiment of the present invention, the particle size of the powdery inorganic compound is 1250 mesh.
As a preferable technical scheme of the invention, the powder inorganic compound comprises one or a combination of more of barite powder, kaolin, bentonite, talcum powder, heavy calcium carbonate, light calcium carbonate, porous powder quartz, white carbon black, precipitated barium sulfate, mica powder and wollastonite.
As a more preferable technical scheme of the invention, the powder inorganic compound is kaolin, mica powder and heavy calcium carbonate, and the weight ratio of the kaolin to the mica powder to the heavy calcium carbonate is (0.2-0.4): (1-3): (2.5-4.5).
As a most preferable technical scheme of the invention, the weight ratio of the kaolin, the mica powder and the heavy calcium carbonate is 0.6:2:3.
As a preferable embodiment of the present invention, the functional polymer compound includes one or a combination of several of acrylic resin, rosin resin, polyamide resin, epoxy resin, polyester resin, polyurethane resin, polytetrafluoroethylene resin, terpene resin, and petroleum resin (C5 petroleum resin, C9 petroleum resin).
As a more preferable technical scheme of the invention, the functional polymer compound is epoxy resin, terpene resin and petroleum resin, and the weight ratio of the epoxy resin to the terpene resin to the petroleum resin is (0.5-1.5): (1.2-2.4): (0.8-1.6).
As a most preferable technical scheme of the invention, the weight ratio of the epoxy resin to the terpene resin to the petroleum resin is 1:2.2:0.8.
As a preferable technical scheme of the invention, the epoxy resin comprises one or a combination of a plurality of bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin, alicyclic epoxy resin and phenolic epoxy resin.
As a preferable technical scheme of the invention, the epoxy resin is bisphenol A type epoxy resin.
As a preferable technical scheme of the invention, the viscosity of the bisphenol A epoxy resin is 5000-15000mPa.s.
As a more preferable technical scheme of the invention, the viscosity of the bisphenol A type epoxy resin is 8000-11000mPa.s.
As a preferred embodiment of the present invention, the terpene resin has an average molecular weight of 650-2600.
As a more preferable embodiment of the invention, the terpene resin has an average molecular weight of 1000 to 1200.
As a preferable technical scheme of the invention, the petroleum resin comprises one or a combination of a plurality of C5 petroleum resin, C9 petroleum resin and cycloaliphatic diene petroleum resin.
As a preferable technical scheme of the invention, the solubility regulator comprises one or a combination of more of naphthenic oil, aromatic hydrocarbon oil, straight-chain hydrocarbon oil, coal tar, vegetable oil, pine tar, tall oil and line-reducing oil.
As a more preferable technical scheme of the invention, the solubility regulator is naphthenic oil and aromatic oil, and the weight ratio of the naphthenic oil to the aromatic oil is (1-1.5): (0.2-0.8).
As a most preferable technical scheme of the invention, the weight ratio of the naphthenic oil to the aromatic oil is 1.2:0.6.
As a preferable technical scheme of the invention, the compatilizer comprises one or a combination of more of polyvinylpyrrolidone, sorbitol, fatty acid glyceride, pentaerythritol palmitate, maleic anhydride grafted styrene-ethylene-butylene block copolymer and ethylene-methyl acrylate copolymer.
As a more preferable technical scheme of the invention, the compatilizer is polyvinylpyrrolidone and fatty glyceride, and the weight ratio of polyvinylpyrrolidone to fatty glyceride is (1-2): (0.5-1).
As a most preferable technical scheme of the invention, the weight ratio of polyvinylpyrrolidone to fatty acid glyceride is 1.5:0.8.
As a preferable technical scheme of the invention, the average molecular weight of the polyvinylpyrrolidone is 4000-6000.
As a more preferable embodiment of the invention, the average molecular weight of polyvinylpyrrolidone is 5500.
The inventor finds that the waterproof coating in the prior art has the problems of poor waterproof effect and easy stripping in the area with the annual rainfall of more than 800mm, and limits the practical application range of the waterproof coating. In order to overcome the technical resistance, the inventor has found through a great deal of creative thinking and research and accidents that when the weight ratio is 1:2.2:0.8 bisphenol A type epoxy resin, terpene resin, C5 petroleum resin and weight ratio of 1.2:0.6 of naphthenic oil, aromatic oil and compatilizer are used for emulsifying petroleum asphalt with penetration of 60-80mm, especially when the viscosity of bisphenol A epoxy resin is 8000-11000mPa.s, the average molecular weight of terpene resin is 1000-1200, and the compatilizer is polyvinylpyrrolidone and fatty glyceride, the compatibility among bisphenol A epoxy resin, terpene resin, C5 petroleum resin and petroleum asphalt is promoted while the petroleum asphalt is fully dissolved, so that emulsified petroleum asphalt particles reach 0.5-100 mu m, wherein 2 mu m accounts for 80% of emulsified petroleum asphalt particles, the permeability of an asphalt emulsifying system is obviously improved, the adhesive force of the waterproof paint to the surface of a coated substrate is enhanced, the phenomenon that the waterproof paint is easy to peel in a humid environment in the prior art is effectively solved, and the product can be ensured to have excellent waterproof performance and durability when used in a region with annual rainfall of more than 800 mm.
As a preferable technical scheme of the invention, the phosphate compound comprises one or a combination of a plurality of methacryloxyethyl phosphate, 2-hydroxyethyl methacrylate phosphate, ethylene glycol methacrylate phosphate, alkyl acrylate phosphate, octadecyl phosphate and dodecyl phosphate.
As a preferable technical scheme of the invention, the phosphate compound is 2-hydroxyethyl methacrylate phosphate, octadecyl phosphate, and the weight ratio of the 2-hydroxyethyl methacrylate phosphate to the octadecyl phosphate is (0.3-0.7): (1-2).
As a more preferable technical scheme of the invention, the weight ratio of the 2-hydroxyethyl methacrylate phosphate to the octadecyl phosphate is 0.5:1.5.
The inventor finds that when bisphenol A epoxy resin, terpene resin, C5 petroleum resin, naphthenic oil, aromatic oil, polyvinylpyrrolidone and fatty glyceride are used for emulsifying petroleum asphalt in the experimental exploration process, system phase loss easily occurs, and the filling effect of a filler in the system is directly influenced, so that the comprehensive performance of a product is influenced. In order to overcome the technical problems, the inventor unexpectedly found that when the weight ratio of the emulsified petroleum asphalt to the system is 0.5:1.5, the 2-hydroxyethyl methacrylate phosphate and the octadecyl phosphate can interact with active groups in bisphenol A epoxy resin, terpene resin, C5 petroleum resin and petroleum asphalt to form a stable macromolecular structure, thereby effectively improving the thermal stability in the process of preparing modified asphalt, being beneficial to obtaining the modified emulsified asphalt with stable structure, effectively preventing the petroleum asphalt from generating thermal segregation, avoiding the occurrence of phase separation, further obtaining the waterproof coating with better stability, providing effective guarantee for the smooth proceeding of the subsequent steps and improving the comprehensive performance of products.
As a preferable technical scheme of the invention, the coupling agent is one or a combination of a plurality of silane coupling agents, titanate coupling agents, aluminate coupling agents and bimetallic coupling agents.
As a more preferable technical scheme of the invention, the coupling agent is a titanate coupling agent.
As a preferable technical scheme of the invention, the titanate coupling agent is one or a combination of a plurality of monoalkoxy titanate coupling agents, monoalkoxy pyrophosphoric acid ester type titanate coupling agents, chelate type titanate coupling agents and coordination type titanate coupling agents.
As a preferable technical scheme of the invention, the interfacial tension modifier comprises one or a combination of more of organosilicon wetting agents, anionic wetting agents, nonionic wetting agents and polyalcohol wetting agents.
As a more preferable technical scheme of the invention, the interfacial tension modifier is a polyalcohol wetting agent and a nonionic wetting agent, and the weight ratio of the polyalcohol wetting agent to the nonionic wetting agent is (1.2-1.8): (0.2-0.6).
As a most preferable technical scheme of the invention, the weight ratio of the polyol wetting agent to the nonionic wetting agent is 1.4:0.4.
As a preferred technical scheme of the invention, the polyol wetting agent comprises one or a combination of more of ethanol, propylene glycol, polysorbate 20, polysorbate 40, polysorbate 80 and sorbitan fatty acid ester.
As a preferable technical scheme of the invention, the nonionic wetting agent comprises one or a combination of more of polyoxyethylene alkylphenol ether, fatty alcohol polyoxyethylene ether and polyoxyethylene polyoxypropylene block copolymer.
As a preferable technical scheme of the invention, the dispersing agent comprises one or a combination of a plurality of low molecular weight polyethylene, sodium dodecyl sulfonate, sodium dodecyl benzene sulfonate, cetyltrimethylammonium bromide and sodium polymethacrylate.
As a preferable technical scheme of the invention, the functional auxiliary agent is selected from one or a combination of a plurality of thickening agents, defoamers, bactericides, preservatives, light stabilizers, mildew inhibitors, antistatic agents, delustering agents and antiskinning agents.
The second aspect of the invention provides a preparation method of a rubber sealing waterproof coating, which comprises the following steps:
(1) Blending the solubility regulator with the functional polymer compound, adding petroleum asphalt and the phosphate compound, and fully stirring for 1-4 hours to obtain modified asphalt;
(2) Adding an emulsifier into water at 65-75 ℃, uniformly stirring, adding the modified asphalt obtained in the step (1), and carrying out blending grinding to obtain modified emulsified asphalt;
(3) Adding a dispersing agent and an interfacial tension modifier into an acrylic polymer and a high-elasticity polymer for blending to obtain a blended polymer;
(4) Dissolving a coupling agent in water, adding a powdery inorganic compound, and fully stirring for 20-30min to obtain the powdery inorganic compound with the surface modified;
(5) Blending the blending polymer in the step (3) and the powdery inorganic compound subjected to surface modification in the step (4) to obtain polymer emulsion;
(6) And (3) adding the functional auxiliary agent and the polymer blend emulsion obtained in the step (3) into the modified emulsified asphalt obtained in the step (2), uniformly stirring, and discharging to obtain the rubber sealing waterproof coating.
Wherein the temperature of the stirring in the step (1) is 140-180 ℃;
the acrylic polymer in the step (3) is acrylic resin;
the temperature of the blending in the step (3) is 150-220 ℃;
The temperature of the stirring in the step (3) is 60-80 ℃;
the weight ratio of the powdery inorganic compound to water in the step (3) is 10 (1-3).
The temperature of the blending in the step (5) is 150-180 ℃;
The temperature of the stirring in the step (6) is 160-190 ℃.
The inventor also surprisingly found that when the coupling agent added in the step (4) is a chelate titanate coupling agent, on one hand, the coupling agent can be chemically bonded with the interface of kaolin, mica powder and heavy calcium carbonate with the particle size of 1600 meshes in a system, and the coupling agent is subjected to surface modification, so that the kaolin, the mica powder and the heavy calcium carbonate with the particle size of 1600 meshes are fully and uniformly filled in the pores among polymer molecular chains, the organic combination of inorganic powder and a chloroprene rubber matrix is realized, and the filling effect of the filler is enhanced; on the other hand, the effective connection of polymer molecular chains in the system is promoted, the mechanical property, waterproof property, bonding durability, permeability and durability of the waterproof coating are improved, and the application field of the waterproof coating is further expanded.
Compared with the prior art, the invention has the following beneficial effects:
1. The rubber sealing waterproof paint prepared by the invention is prepared by adding the following components in percentage by weight into a system: 0.4, especially when the polyol wetting agent is sorbitan fatty acid ester and the nonionic wetting agent is fatty alcohol polyoxyethylene ether, the filling coefficient of kaolin, mica powder and heavy calcium carbonate in the system is improved, the waterproof effect, bonding durability and durability of the waterproof coating are enhanced, and meanwhile, the adaptability of the waterproof coating to the surface of a dry substrate is enhanced, so that the prepared waterproof coating not only can be coated on the surface of a wet substrate, but also has excellent adhesive force on the surface of a dry substrate, and the practical application range of the rubber sealing waterproof coating is further widened.
2. The rubber sealing waterproof paint prepared by the invention has the best emulsifying effect on petroleum asphalt with penetration of 60-80mm when bisphenol A epoxy resin with viscosity of 8000-11000mPa.s, terpene resin with average molecular weight of 1000-1200, C5 petroleum resin, polyvinylpyrrolidone and fatty glyceride are added in the process of emulsifying the asphalt, so that the problem of poor permeability of the emulsified petroleum asphalt is effectively solved, and the adhesion durability of the waterproof paint to a base material is improved.
3. The rubber sealing waterproof paint prepared by the invention is prepared by adding 0.5 weight percent into a system: 1.5, 2-hydroxyethyl methacrylate phosphate and octadecyl phosphate, can remarkably improve the thermal stability of modified asphalt, and can obtain modified emulsified asphalt with stable structure, thus obtaining the rubber sealing waterproof coating with excellent stability.
4. When the coupling agent added in the step (3) is the chelating titanate coupling agent, the surface modification is carried out on the filler in the system, so that the filler is uniformly and fully filled in the pores among polymer molecular chains, the organic combination of the filler and a rubber matrix is realized, and the filling effect of powder is enhanced; on the other hand, the effective connection among polymer molecular chains in the system is promoted, and the mechanical property, the waterproof property, the bonding durability, the permeability and the durability of the waterproof coating are enhanced.
5. The rubber sealing waterproof paint prepared by the invention is prepared by emulsifying petroleum asphalt such as hydroxyethyl methacrylate phosphate, octadecyl phosphate and the like to obtain emulsified asphalt, respectively blending and modifying chloroprene rubber, carrying out surface modification on powdery inorganic compounds to obtain polymer emulsion, and finally mixing and modifying the emulsified asphalt and the polymer emulsion.
Examples
Example 1
Example 1 provides a rubber sealing waterproof coating, which is prepared from the following components: the preparation raw materials comprise the following components in parts by weight: 50 parts of petroleum asphalt, 10 parts of high-elasticity polymer, 5 parts of acrylic polymer, 3 parts of emulsifier, 25 parts of powdery inorganic compound, 1 part of functional high molecular compound, 0.5 part of interfacial tension modifier, 2 parts of phosphate compound, 1 part of coupling agent, 2 parts of solubility regulator, 1 part of compatilizer, 2 parts of dispersing agent, 1 part of functional auxiliary agent and 10 parts of water.
The petroleum asphalt is purchased from Shandong road Guangdong road materials limited company, and has a model of 70# -5 and penetration of 60-80mm;
The high-elasticity polymer is neoprene and butadiene rubber, and the weight ratio of the neoprene to the butadiene rubber is 3:2; the neoprene is purchased from Dongguan Hebao plastic limited company, the model is DCR-12, and the Mooney viscosity is 48MU; butadiene rubber is purchased from Tian Benfeng rubber limited company in Guangzhou, and has the model BR9000 and the weight average molecular weight of 27-35 ten thousand;
The mass ratio of the emulsifier is 1.5: sodium dodecylbenzenesulfonate, sodium stearate, 0.5; the CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0; sodium stearate has a CAS number of 822-16-2;
The powder inorganic compound is kaolin, mica powder and heavy calcium carbonate, and the weight ratio of the kaolin to the mica powder to the heavy calcium carbonate is 0.6:2:3, a step of; the kaolin is purchased from Shijia Borui building materials limited company, and the particle size is 1250 meshes; mica powder is purchased from Lingshou Huayuan mica limited company with the particle size of 1250 meshes; the heavy calcium carbonate is purchased from Jiangxi sea source chemical industry Co., ltd, and the particle size is 1250 mesh;
The functional high molecular compound is bisphenol A type epoxy resin, terpene resin or C5 petroleum resin; the weight ratio of bisphenol A type epoxy resin, terpene resin and petroleum resin is 1:2.2:0.8; the bisphenol A type epoxy resin is purchased from the company Nanhui energy resin Co., ltd, the model is CYD-127, and the viscosity is 8000-11000mPa.s; viscosity 8000-11000mPa.s obtained from kepler biotechnology Co., ltd., model kpl-22565, and average molecular weight 1000-1200; c5 petroleum resin was purchased from mountain Dongchang glaring new materials limited;
The solubility regulator is naphthenic oil and aromatic oil, and the weight ratio of the naphthenic oil to the aromatic oil is 1.2:0.6; the naphthenic oil is purchased from Hebei Yi Siyuan Lubricant Co., ltd, and the model is KN4006; aromatic oil was purchased from shandongjunlong chemical company, inc;
The weight ratio of the compatilizer is 1.5:0.8 of polyvinylpyrrolidone, fatty acid glycerides, polyvinylpyrrolidone and fatty acid glycerides, polyvinylpyrrolidone purchased from Shandong nonlinear technologies Co., ltd, model PVPK15, average molecular weight 5500; fatty acid glycerides were purchased from Jiangsu Ruido bioengineering Co.Ltd;
The phosphate compound is 2-hydroxyethyl methacrylate phosphate, octadecyl phosphate, and the weight ratio of the 2-hydroxyethyl methacrylate phosphate to the octadecyl phosphate is 0.5:1.5; the CAS number of the 2-hydroxyethyl methacrylate phosphate is 52328-03-2, and the CAS number of the octadecyl phosphate is 39471-52-8;
The coupling agent is a chelate titanate coupling agent, and is purchased from Dongguan Hebao plastic limited company, and the model is 311W;
The interfacial tension modifier is sorbitan fatty acid ester and fatty alcohol polyoxyethylene ether, and the weight ratio of the sorbitan fatty acid ester to the fatty alcohol polyoxyethylene ether is 1.4:0.4; the sorbitan fatty acid ester is purchased from Linyi national force chemical industry Co., ltd, and the model is span S-85; the fatty alcohol polyoxyethylene ether is purchased from Jinan Jungteng chemical industry Co., ltd, and the model is AEO-9;
The dispersing agent is sodium dodecyl benzene sulfonate, and the CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0.
The functional auxiliary agent is a defoaming agent, and is purchased from the Hengxin chemical engineering Co., ltd, and the model is THI X-299;
the preparation method of the rubber sealing waterproof paint comprises the following steps:
(1) Blending the solubility regulator with the functional polymer compound, adding petroleum asphalt and the phosphate compound, and fully stirring for 3 hours to obtain modified asphalt;
(2) Adding an emulsifying agent into water at 70 ℃, uniformly stirring, adding the modified asphalt obtained in the step (1), and carrying out blending grinding to obtain modified emulsified asphalt;
(3) Adding a dispersing agent and an interfacial tension modifier into an acrylic polymer and a high-elasticity polymer for blending to obtain a blended polymer;
(4) Dissolving a coupling agent in water, adding a powdery inorganic compound, and fully stirring for 25min to obtain a powdery inorganic compound after surface modification;
(5) Blending the blending polymer in the step (3) and the powdery inorganic compound subjected to surface modification in the step (4) to obtain polymer emulsion;
(6) And (3) adding the functional auxiliary agent and the polymer blend emulsion obtained in the step (3) into the modified emulsified asphalt obtained in the step (2), uniformly stirring, and discharging to obtain the rubber sealing waterproof coating.
Wherein the temperature of the stirring in the step (1) is 175 ℃;
the acrylic polymer in the step (3) is acrylic resin;
The temperature of the blending in the step (3) is 170 ℃;
The temperature of the stirring in the step (3) is 70 ℃;
The weight ratio of the powdery inorganic compound to water in the step (3) is 10:2.
The temperature of the blending in the step (5) is 170 ℃;
The temperature of the stirring in the step (6) is 170 ℃.
Example 2
Example 2 provides a rubber sealing waterproof coating, which is prepared from the following components: the preparation raw materials comprise the following components in parts by weight: 80 parts of petroleum asphalt, 20 parts of high-elasticity polymer, 10 parts of acrylic polymer, 3 parts of emulsifier, 40 parts of powdery inorganic compound, 5 parts of functional high-molecular compound, 3.5 parts of interfacial tension modifier, 5 parts of phosphate compound, 3 parts of coupling agent, 8 parts of solubility regulator, 5 parts of compatilizer, 6 parts of dispersing agent, 5 parts of functional auxiliary agent and 20 parts of water.
The petroleum asphalt is purchased from Shandong road Guangdong road materials limited company, and has a model of 70# -5 and penetration of 60-80mm;
The high-elasticity polymer is neoprene and butadiene rubber, and the weight ratio of the neoprene to the butadiene rubber is 3:2; the neoprene is purchased from Dongguan Hebao plastic limited company, the model is DCR-12, and the Mooney viscosity is 48MU; butadiene rubber is purchased from Tian Benfeng rubber limited company in Guangzhou, and has the model BR9000 and the weight average molecular weight of 27-35 ten thousand;
The mass ratio of the emulsifier is 1.5: sodium dodecylbenzenesulfonate, sodium stearate, 0.5; the CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0; sodium stearate has a CAS number of 822-16-2;
The powder inorganic compound is kaolin, mica powder and heavy calcium carbonate, and the weight ratio of the kaolin to the mica powder to the heavy calcium carbonate is 0.6:2:3, a step of; the kaolin is purchased from Shijia Borui building materials limited company, and the particle size is 1250 meshes; mica powder is purchased from Lingshou Huayuan mica limited company with the particle size of 1250 meshes; the heavy calcium carbonate is purchased from Jiangxi sea source chemical industry Co., ltd, and the particle size is 1250 mesh;
The functional high molecular compound is bisphenol A type epoxy resin, terpene resin or C5 petroleum resin; the weight ratio of bisphenol A type epoxy resin, terpene resin and petroleum resin is 1:2.2:0.8; the bisphenol A type epoxy resin is purchased from the company Nanhui energy resin Co., ltd, the model is CYD-127, and the viscosity is 8000-11000mPa.s; viscosity 8000-11000mPa.s obtained from kepler biotechnology Co., ltd., model kpl-22565, and average molecular weight 1000-1200; c5 petroleum resin was purchased from mountain Dongchang glaring new materials limited;
The solubility regulator is naphthenic oil and aromatic oil, and the weight ratio of the naphthenic oil to the aromatic oil is 1.2:0.6; the naphthenic oil is purchased from Hebei Yi Siyuan Lubricant Co., ltd, and the model is KN4006; aromatic oil was purchased from shandongjunlong chemical company, inc;
The weight ratio of the compatilizer is 1.5:0.8 of polyvinylpyrrolidone, fatty acid glycerides, polyvinylpyrrolidone and fatty acid glycerides, polyvinylpyrrolidone purchased from Shandong nonlinear technologies Co., ltd, model PVPK15, average molecular weight 5500; fatty acid glycerides were purchased from Jiangsu Ruido bioengineering Co.Ltd;
The phosphate compound is 2-hydroxyethyl methacrylate phosphate, octadecyl phosphate, and the weight ratio of the 2-hydroxyethyl methacrylate phosphate to the octadecyl phosphate is 0.5:1.5; the CAS number of the 2-hydroxyethyl methacrylate phosphate is 52328-03-2, and the CAS number of the octadecyl phosphate is 39471-52-8;
The coupling agent is a chelate titanate coupling agent, and is purchased from Dongguan Hebao plastic limited company, and the model is 311W;
The interfacial tension modifier is sorbitan fatty acid ester and fatty alcohol polyoxyethylene ether, and the weight ratio of the sorbitan fatty acid ester to the fatty alcohol polyoxyethylene ether is 1.4:0.4; the sorbitan fatty acid ester is purchased from Linyi national force chemical industry Co., ltd, and the model is span S-85; the fatty alcohol polyoxyethylene ether is purchased from Jinan Jungteng chemical industry Co., ltd, and the model is AEO-9;
The dispersing agent is sodium dodecyl benzene sulfonate, and the CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0;
The functional auxiliary agent is a mildew inhibitor, and is purchased from Shandong Vigorboom New Material technology Co., ltd, and the model is KF-39;
the preparation method of the rubber sealing waterproof paint is the same as that of the embodiment 1.
Example 3
Example 3 provides a rubber sealing waterproof coating, which is prepared from the following components: the preparation raw materials comprise the following components in parts by weight: 75 parts of petroleum asphalt, 15 parts of high-elasticity polymer, 8 parts of acrylic polymer, 3 parts of emulsifier, 30 parts of powdery inorganic compound, 3 parts of functional high-molecular compound, 2 parts of interfacial tension modifier, 3 parts of phosphate compound, 2 parts of coupling agent, 6 parts of solubility regulator, 3 parts of compatilizer, 3 parts of dispersing agent, 4 parts of functional auxiliary agent and 15 parts of water.
The petroleum asphalt is purchased from Shandong road Guangdong road materials limited company, and has a model of 70# -5 and penetration of 60-80mm;
The high-elasticity polymer is neoprene and butadiene rubber, and the weight ratio of the neoprene to the butadiene rubber is 3:2; the neoprene is purchased from Dongguan Hebao plastic limited company, the model is DCR-12, and the Mooney viscosity is 48MU; butadiene rubber is purchased from Tian Benfeng rubber limited company in Guangzhou, and has the model BR9000 and the weight average molecular weight of 27-35 ten thousand;
The mass ratio of the emulsifier is 1.5: sodium dodecylbenzenesulfonate, sodium stearate, 0.5; the CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0; sodium stearate has a CAS number of 822-16-2;
The powder inorganic compound is kaolin, mica powder and heavy calcium carbonate, and the weight ratio of the kaolin to the mica powder to the heavy calcium carbonate is 0.6:2:3, a step of; the kaolin is purchased from Shijia Borui building materials limited company, and the particle size is 1250 meshes; mica powder is purchased from Lingshou Huayuan mica limited company with the particle size of 1250 meshes; the heavy calcium carbonate is purchased from Jiangxi sea source chemical industry Co., ltd, and the particle size is 1250 mesh;
The functional high molecular compound is bisphenol A type epoxy resin, terpene resin or C5 petroleum resin; the weight ratio of bisphenol A type epoxy resin, terpene resin and petroleum resin is 1:2.2:0.8; the bisphenol A type epoxy resin is purchased from the company Nanhui energy resin Co., ltd, the model is CYD-127, and the viscosity is 8000-11000mPa.s; viscosity 8000-11000mPa.s obtained from kepler biotechnology Co., ltd., model kpl-22565, and average molecular weight 1000-1200; c5 petroleum resin was purchased from mountain Dongchang glaring new materials limited;
The solubility regulator is naphthenic oil and aromatic oil, and the weight ratio of the naphthenic oil to the aromatic oil is 1.2:0.6; the naphthenic oil is purchased from Hebei Yi Siyuan Lubricant Co., ltd, and the model is KN4006; aromatic oil was purchased from shandongjunlong chemical company, inc;
The weight ratio of the compatilizer is 1.5:0.8 of polyvinylpyrrolidone, fatty acid glycerides, polyvinylpyrrolidone and fatty acid glycerides, polyvinylpyrrolidone purchased from Shandong nonlinear technologies Co., ltd, model PVPK15, average molecular weight 5500; fatty acid glycerides were purchased from Jiangsu Ruido bioengineering Co.Ltd;
The phosphate compound is 2-hydroxyethyl methacrylate phosphate, octadecyl phosphate, and the weight ratio of the 2-hydroxyethyl methacrylate phosphate to the octadecyl phosphate is 0.5:1.5; the CAS number of the 2-hydroxyethyl methacrylate phosphate is 52328-03-2, and the CAS number of the octadecyl phosphate is 39471-52-8;
The coupling agent is a chelate titanate coupling agent, and is purchased from Dongguan Hebao plastic limited company, and the model is 311W;
The interfacial tension modifier is sorbitan fatty acid ester and fatty alcohol polyoxyethylene ether, and the weight ratio of the sorbitan fatty acid ester to the fatty alcohol polyoxyethylene ether is 1.4:0.4; the sorbitan fatty acid ester is purchased from Linyi national force chemical industry Co., ltd, and the model is span S-85; the fatty alcohol polyoxyethylene ether is purchased from Jinan Jungteng chemical industry Co., ltd, and the model is AEO-9;
The dispersing agent is sodium dodecyl benzene sulfonate, and the CAS number of the sodium dodecyl benzene sulfonate is 25155-30-0;
The functional auxiliary agent is a bactericide, and is purchased from Zaozhuang Shibang biotechnology Co., ltd, and the model number is 410;
the preparation method of the rubber sealing waterproof paint is the same as that of the embodiment 1.
Comparative example 1
The embodiment of comparative example 1 is the same as example 3 except that there is no interfacial tension modifier.
Comparative example 2
The embodiment of comparative example 2 is the same as in example 3 except that no phosphate compound is added.
Comparative example 3
The embodiment of comparative example 3 is the same as example 3 except that the coupling agent is KH550.
Evaluation of Performance
(1) Adhesion Performance test
The waterproof coatings prepared in examples 1 to 3 and comparative examples 1 to 3 were coated on a 10cm×10cm steel plate, and adhesion performance was tested according to GB/T9286-1998 cross-cut test of paint and varnish films, and the measured data are shown in Table 1;
(2) Waterproof test
The waterproof coatings prepared in examples 1-3 and comparative examples 1-3 are coated on asbestos-free cement flat plates with the thickness of 200mm multiplied by 150mm multiplied by 4mm, the waterproof performance is tested according to the method of GB/T9755-2014 synthetic resin emulsion exterior wall coating, the lower the water permeability value is, the better the waterproof performance of the product is, and the measured data are shown in Table 1;
(3) Test of artificial weather aging resistance
The waterproof coating materials prepared in examples 1 to 3 and comparative examples 1 to 3 were coated on asbestos-free cement slabs of 200mm×150mm×4mm, and subjected to an artificial weather resistance test according to the specification of cycle A in GB/T1865-2009 "Manual weather aging of paint and varnish and exposure to filtered xenon arc radiation" and evaluated according to the rating method of GB/T "ageing of paint and varnish coating", and the measured data are shown in Table 1.
TABLE 1 high Performance test results for high Performance grinding tapes
Adhesion (grade) Water permeability (mL) Resistance to weathering (grade)
Example 1 I 0.06 0
Example 2 I 0.07 0
Example 3 I 0.05 0
Comparative example 1 III 0.51 2
Comparative example 2 III 0.62 1
Comparative example 3 III 0.57 2

Claims (4)

1. The rubber sealing waterproof paint is characterized by comprising the following raw materials in parts by weight: 50-80 parts of petroleum asphalt, 10-20 parts of high-elasticity polymer, 5-10 parts of acrylic polymer, 1-4 parts of emulsifier, 25-40 parts of powdery inorganic compound, 1-5 parts of functional high molecular compound, 0.5-3.5 parts of interfacial tension modifier, 2-5 parts of phosphate compound, 1-3 parts of coupling agent, 2-8 parts of solubility regulator, 1-5 parts of compatilizer, 2-6 parts of dispersing agent, 1-5 parts of functional auxiliary agent and 10-20 parts of water;
The emulsifier is an anionic surfactant, the anionic surfactant is sodium dodecyl benzene sulfonate and sodium stearate, and the mass ratio of the sodium dodecyl benzene sulfonate to the sodium stearate is (1-2): (0.5-1);
The phosphate compound is 2-hydroxyethyl methacrylate phosphate, octadecyl phosphate, and the weight ratio of the 2-hydroxyethyl methacrylate phosphate to the octadecyl phosphate is (0.3-0.7): (1-2);
The coupling agent is a titanate coupling agent, and the titanate coupling agent is a chelate titanate coupling agent;
The functional polymer compound is bisphenol A type epoxy resin, terpene resin and petroleum resin, and the weight ratio of the bisphenol A type epoxy resin to the terpene resin to the petroleum resin is (0.5-1.5): (1.2-2.4): (0.8-1.6);
The solubility regulator is naphthenic oil and aromatic oil, and the weight ratio of the naphthenic oil to the aromatic oil is (1-1.5): (0.2-0.8);
The compatilizer is polyvinylpyrrolidone and fatty glyceride, and the weight ratio of polyvinylpyrrolidone to fatty glyceride is (1-2): (0.5-1).
2. The waterproof sealing rubber coating according to claim 1, wherein the particle size of the powdery inorganic compound is 800-2200 mesh.
3. The rubber sealing waterproof coating according to claim 1, wherein the viscosity of the bisphenol a type epoxy resin is 5000 to 15000 mpa.s; the terpene resin has an average molecular weight of 650-2600.
4. A process for producing the rubber sealing waterproof coating material according to any one of claims 1 to 3, comprising the steps of:
(1) Blending the solubility regulator with the functional polymer compound, adding petroleum asphalt and the phosphate compound, and fully stirring for 1-4 hours to obtain modified asphalt;
(2) Adding an emulsifier into water at 65-75 ℃, uniformly stirring, adding the modified asphalt obtained in the step (1), and carrying out blending grinding to obtain modified emulsified asphalt;
(3) Adding a dispersing agent and an interfacial tension modifier into an acrylic polymer and a high-elasticity polymer for blending to obtain a blended polymer;
(4) Dissolving a coupling agent in water, adding a powdery inorganic compound, and fully stirring for 20-30min to obtain the powdery inorganic compound with the surface modified;
(5) Blending the blending polymer in the step (3) and the powdery inorganic compound subjected to surface modification in the step (4) to obtain polymer emulsion;
(6) And (3) adding the functional auxiliary agent and the polymer emulsion obtained in the step (5) into the modified emulsified asphalt obtained in the step (2), uniformly stirring, and discharging to obtain the rubber sealing waterproof coating.
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