CN110607098A - Surface durability agent applied to silicate building materials and preparation method thereof - Google Patents
Surface durability agent applied to silicate building materials and preparation method thereof Download PDFInfo
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- CN110607098A CN110607098A CN201910965741.6A CN201910965741A CN110607098A CN 110607098 A CN110607098 A CN 110607098A CN 201910965741 A CN201910965741 A CN 201910965741A CN 110607098 A CN110607098 A CN 110607098A
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- agent
- building materials
- surface durability
- styrene
- polysiloxane
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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
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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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- 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
- 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
-
- 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
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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)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a surface durability agent applied to silicate building materials, which comprises ultrahigh molecular weight polysiloxane, styrene-acrylic emulsion, an impact resistance reinforcing agent, an emulsifier and a dispersant, wherein the preparation method comprises the following steps: mixing and stirring an emulsifier and the ultrahigh molecular weight polysiloxane, and cooling and dropwise adding a dispersing agent to obtain polysiloxane emulsion; adding the styrene-acrylic emulsion and the impact resistance reinforcing agent into water at the same time, cooling, dropwise adding the dispersing agent, and stirring for reaction; and heating and dripping polysiloxane emulsion, cooling and dripping a dispersing agent after dripping is finished, and stirring for reaction to obtain the surface durability agent applied to the silicate building materials. Through the way, the calcium silicate hydrate C-S-H adsorbent can adsorb free calcium ions on the surface layer of concrete and further react with the free calcium ions to produce calcium silicate hydrate C-S-H, and can seal capillary pores on the surface layer of the concrete material, thereby greatly improving various performance indexes of the concrete, such as impermeability, wear resistance, freeze-thaw cycle, impact strength and the like, and prolonging the service life.
Description
Technical Field
The invention relates to the technical field of building materials, in particular to a surface durability agent applied to silicate building materials and a preparation method thereof.
Background
The building materials are general names of materials used in civil engineering and building engineering and can be divided into structural materials, decorative materials and some special materials, wherein the structural materials comprise wood, bamboo, stone, cement, concrete, metal, tiles, ceramics, glass, engineering plastics, composite materials and the like. Silicate building materials taking cement as a core, such as mortar terraces, common concrete pavements, special concrete members, fair-faced concrete walls and the like, inevitably have surface abrasion and dust falling phenomena in daily use, seriously affect the service life of the building materials and have poor use effect.
Disclosure of Invention
The invention mainly solves the technical problem of providing a surface durability agent applied to silicate building materials and a preparation method thereof.
In order to solve the technical problems, the invention adopts a technical scheme that: the surface durability agent applied to the silicate building materials comprises ultrahigh molecular weight polysiloxane, styrene-acrylic emulsion, an impact resistance reinforcing agent, an emulsifying agent and a dispersing agent, wherein the content of each component of the surface durability agent applied to the silicate building materials is as follows: 6-10 parts of ultrahigh molecular weight polysiloxane, 10-15 parts of styrene-acrylic emulsion, 5-13 parts of impact resistance reinforcing agent, 18-30 parts of emulsifier and 2 parts of dispersant.
In a preferred embodiment of the present invention, the molecular weight of the ultra-high molecular weight polysiloxane is 150 ten thousand or more.
In a preferred embodiment of the invention, the styrene-acrylic emulsion is 30-50% by mass.
In a preferred embodiment of the invention, the impact resistance enhancer comprises styrene-butadiene copolymer, polyvinylidene fluoride and zinc stearate, and the content of each component of the impact resistance enhancer is as follows: 2-8 parts of styrene-butadiene copolymer, 2 parts of polyvinylidene fluoride and 1-3 parts of zinc stearate.
In a preferred embodiment of the invention, the emulsifier is a silicone emulsion with a mass fraction of 20-30%.
In a preferred embodiment of the present invention, the dispersant is polyacrylamide.
The preparation method of the surface durability agent applied to the silicate building materials comprises the following steps: (1) mixing and stirring an emulsifier and the ultrahigh molecular weight polysiloxane, and cooling and dropwise adding a dispersing agent to obtain polysiloxane emulsion; (2) adding the styrene-acrylic emulsion and the impact resistance reinforcing agent into water at the same time, cooling, dropwise adding the dispersing agent, and stirring for reaction; (3) and (2) heating and dropwise adding the polysiloxane emulsion obtained in the step (1), cooling and dropwise adding a dispersing agent after dropwise adding is finished, and stirring for reaction to obtain the surface durability agent applied to the silicate building materials.
In a preferred embodiment of the present invention, the mixing and stirring of the emulsifier and the ultra-high molecular weight polysiloxane in step (1) is performed at 90-105 ℃ for 1-2 h; the temperature is reduced to 30-35 ℃; the dropping of the dispersing agent is finished within 30 min; and after the dispersant is dropwise added, continuously stirring for 1-3 h at 30-35 ℃.
In a preferred embodiment of the invention, the temperature of water when the styrene-acrylic emulsion and the impact resistance enhancer are added in the step (2) is 60-75 ℃; the time for adding the styrene-acrylic emulsion and the impact resistance reinforcing agent is 3 hours; the temperature is reduced to 30-35 ℃; the dropping of the dispersing agent is finished within 30 min; and after the dispersant is dropwise added, continuously stirring for 1-3 h at 30-35 ℃.
In a preferred embodiment of the present invention, the temperature in step (3) is raised to 90-105 ℃; the dropping time of the polysiloxane emulsion is 2 h; stirring the polysiloxane emulsion for 30min at 90-105 ℃ after the dropping is finished; the temperature is reduced to 30-35 ℃; the dropping of the dispersing agent is finished within 30 min; and after the dropwise addition of the dispersing agent is finished, continuously stirring for 1-3 h at 30-35 ℃.
The invention has the beneficial effects that: the surface durability agent applied to silicate building materials and the preparation method thereof can adsorb free calcium ions on the surface layer of concrete and further react with the free calcium ions to produce calcium silicate hydrate C-S-H, seal capillary pores on the surface layer of the concrete material, greatly improve various performance indexes of the concrete, such as impermeability, wear resistance, freeze-thaw cycle, impact strength and the like, and prolong the service life.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the surface durability agent applied to silicate building materials comprises ultrahigh molecular weight polysiloxane, styrene-acrylic emulsion, an impact resistance reinforcing agent, an emulsifier and a dispersant. The molecular weight of the ultra-high molecular weight polysiloxane is more than 150 ten thousand. The styrene-acrylic emulsion is 30-50% by mass. The impact resistance enhancer includes styrene-butadiene copolymer, polyvinylidene fluoride, and zinc stearate. The emulsifier is organic silicon emulsion with the mass fraction of 20-30%. The dispersant is polyacrylamide. The surface durability agent applied to the silicate building materials comprises the following components in percentage by weight: the adhesive comprises, by weight, 8 parts of ultrahigh molecular weight polysiloxane, 13 parts of 30-50% styrene-acrylic emulsion, 5 parts of styrene-butadiene copolymer, 2 parts of polyvinylidene fluoride, 2 parts of zinc stearate, 24 parts of 20-30% organosilicon emulsion and 2 parts of polyacrylamide.
The preparation method of the surface durability agent applied to the silicate building materials comprises the following steps:
(1) adding an emulsifier and ultrahigh molecular weight polysiloxane into a dispersion kettle provided with a thermometer, a stirrer, a condensing device, a dropping funnel and a nitrogen protection device, stirring for 1-2 hours at 90-105 ℃, cooling to 30-35 ℃ after the materials are uniformly stirred, dropwise adding a dispersing agent while stirring, finishing dropping by 30Min, continuing stirring for 1-3 hours at 30-35 ℃ after finishing dropping, and taking out the materials of the dispersion kettle for later use to obtain polysiloxane emulsion;
(2) adding a certain amount of water into a three-mouth bottle provided with a thermometer, a stirrer, a condensing device, a dropping funnel and a nitrogen protection device, heating to 60-75 ℃, dropwise adding a styrene-acrylic emulsion while adding an impact resistance reinforcing agent, uniformly adding for 3 hours, then cooling to 30-35 ℃, uniformly dropwise adding a dispersing agent, finishing dropping by 30Min, and continuing stirring for 2 hours at 30-35 ℃ after finishing dropping;
(3) heating to 90-105 ℃, dropwise adding the polysiloxane emulsion into the three-mouth bottle obtained in the step (2), finishing adding for 2 hours, continuing to stir for 30Min at 90-105 ℃ after finishing adding, cooling to 30-35 ℃, dropwise adding the dispersing agent while stirring, finishing dropping for 30Min, continuing to stir for 2 hours at 30-35 ℃ after finishing dropping, and cooling to obtain the surface durability agent.
Example two:
the surface durability agent applied to silicate building materials comprises ultrahigh molecular weight polysiloxane, styrene-acrylic emulsion, an impact resistance reinforcing agent, an emulsifier and a dispersant. The molecular weight of the ultra-high molecular weight polysiloxane is more than 150 ten thousand. The styrene-acrylic emulsion is 30-50% by mass. The impact resistance enhancer includes styrene-butadiene copolymer, polyvinylidene fluoride, and zinc stearate. The emulsifier is organic silicon emulsion with the mass fraction of 20-30%. The dispersant is polyacrylamide. The surface durability agent applied to the silicate building materials comprises the following components in percentage by weight: the adhesive comprises, by weight, 6 parts of ultrahigh molecular weight polysiloxane, 15 parts of 30-50% styrene-acrylic emulsion, 2 parts of styrene-butadiene copolymer, 2 parts of polyvinylidene fluoride, 3 parts of zinc stearate, 18 parts of 20-30% organosilicon emulsion and 2 parts of polyacrylamide.
The preparation method of the surface durability agent applied to the silicate building materials is the same as that of the first embodiment.
Example three:
the surface durability agent applied to silicate building materials comprises ultrahigh molecular weight polysiloxane, styrene-acrylic emulsion, an impact resistance reinforcing agent, an emulsifier and a dispersant. The molecular weight of the ultra-high molecular weight polysiloxane is more than 150 ten thousand. The styrene-acrylic emulsion is 30-50% by mass. The impact resistance enhancer includes styrene-butadiene copolymer, polyvinylidene fluoride, and zinc stearate. The emulsifier is organic silicon emulsion with the mass fraction of 20-30%. The dispersant is polyacrylamide. The surface durability agent applied to the silicate building materials comprises the following components in percentage by weight: the adhesive comprises, by weight, 10 parts of ultrahigh molecular weight polysiloxane, 10 parts of 30-50% styrene-acrylic emulsion, 8 parts of styrene-butadiene copolymer, 2 parts of polyvinylidene fluoride, 1 part of zinc stearate, 30 parts of 20-30% organic silicon emulsion and 2 parts of polyacrylamide.
The preparation method of the surface durability agent applied to the silicate building materials is the same as that of the first embodiment.
The invention has the effects that the emulsifier is utilized to emulsify and disperse the ultra-high molecular weight polysiloxane under the action of the dispersant to obtain polysiloxane emulsion, and the surface durability agent applied to silicate building materials is obtained by reacting with the styrene-acrylic emulsion and the impact resistance reinforcing agent through a chemical method.
The invention can greatly improve various performance indexes of the concrete, such as impermeability, wear resistance, freeze-thaw cycle, impact strength and the like, and prolong the service life by coating the surface durability agent on the surfaces of cement, mortar and concrete. The surface durability agent can adsorb free calcium ions on the surface layer of concrete and further react with the free calcium ions to produce calcium silicate hydrate C-S-H, and capillary pores on the surface layer of the concrete material are sealed by reaction products, so that the effects of permeability resistance, wear resistance, freeze-thaw cycle and impact strength are improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The surface durability agent applied to the silicate building materials is characterized by comprising ultrahigh molecular weight polysiloxane, styrene-acrylic emulsion, an impact resistance reinforcing agent, an emulsifying agent and a dispersing agent, wherein the content of each component of the surface durability agent applied to the silicate building materials is as follows: 6-10 parts of ultrahigh molecular weight polysiloxane, 10-15 parts of styrene-acrylic emulsion, 5-13 parts of impact resistance reinforcing agent, 18-30 parts of emulsifier and 2 parts of dispersant.
2. The surface durability agent for silicate building materials as claimed in claim 1, wherein the molecular weight of the ultra-high molecular weight polysiloxane is 150 ten thousand or more.
3. The surface durability agent for silicate building materials as claimed in claim 1, wherein the styrene-acrylic emulsion is 30-50% by weight.
4. The surface durability agent for silicate building materials as claimed in claim 1, wherein the impact strength enhancer comprises styrene-butadiene copolymer, polyvinylidene fluoride and zinc stearate, and the content of each component of the impact strength enhancer is as follows: 2-8 parts of styrene-butadiene copolymer, 2 parts of polyvinylidene fluoride and 1-3 parts of zinc stearate.
5. The surface durability agent for silicate building materials as claimed in claim 1, wherein the emulsifier is a silicone emulsion with a mass fraction of 20-30%.
6. The surface durability agent for silicate building materials as claimed in claim 1, wherein the dispersant is polyacrylamide.
7. The method for preparing the surface durability agent for silicate building materials as claimed in claim 1, comprising the steps of: (1) mixing and stirring an emulsifier and the ultrahigh molecular weight polysiloxane, and cooling and dropwise adding a dispersing agent to obtain polysiloxane emulsion; (2) adding the styrene-acrylic emulsion and the impact resistance reinforcing agent into water at the same time, cooling, dropwise adding the dispersing agent, and stirring for reaction; (3) and (2) heating and dropwise adding the polysiloxane emulsion obtained in the step (1), cooling and dropwise adding a dispersing agent after dropwise adding is finished, and stirring for reaction to obtain the surface durability agent applied to the silicate building materials.
8. The method for preparing the surface durability agent for silicate building materials as claimed in claim 7, wherein the mixing and stirring of the emulsifier and the ultra-high molecular weight polysiloxane in the step (1) is performed at 90 to 105 ℃ for 1 to 2 hours; the temperature is reduced to 30-35 ℃; the dropping of the dispersing agent is finished within 30 min; and after the dispersant is dropwise added, continuously stirring for 1-3 h at 30-35 ℃.
9. The method for preparing the surface durability agent for silicate building materials as claimed in claim 7, wherein the temperature of water is 60-75 ℃ when the styrene-acrylic emulsion and the impact resistance enhancer are added in the step (2); the time for adding the styrene-acrylic emulsion and the impact resistance reinforcing agent is 3 hours; the temperature is reduced to 30-35 ℃; the dropping of the dispersing agent is finished within 30 min; and after the dispersant is dropwise added, continuously stirring for 1-3 h at 30-35 ℃.
10. The method for preparing the surface durability agent for silicate building materials as claimed in claim 7, wherein the temperature rise in the step (3) is heating to 90-105 ℃; the dropping time of the polysiloxane emulsion is 2 h; stirring the polysiloxane emulsion for 30min at 90-105 ℃ after the dropping is finished; the temperature is reduced to 30-35 ℃; the dropping of the dispersing agent is finished within 30 min; and after the dropwise addition of the dispersing agent is finished, continuously stirring for 1-3 h at 30-35 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910965741.6A CN110607098A (en) | 2019-10-12 | 2019-10-12 | Surface durability agent applied to silicate building materials and preparation method thereof |
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| CN201910965741.6A CN110607098A (en) | 2019-10-12 | 2019-10-12 | Surface durability agent applied to silicate building materials and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088060A (en) * | 1996-09-10 | 1998-04-07 | Yoshiyuki Ogushi | Surface coating agent and method for reinforcing surface of concrete structure by using the same |
| CN1517415A (en) * | 2003-01-16 | 2004-08-04 | 深圳市海川实业股份有限公司 | Aqueous antialkali sealing prime paint and its eracuation method |
| CN101914328A (en) * | 2010-07-30 | 2010-12-15 | 江苏尼高科技有限公司 | Special interface agent for CRTS concrete base plate of ballastless track and preparation method thereof |
| CN103408324A (en) * | 2013-08-22 | 2013-11-27 | 江苏博特新材料有限公司 | Method for preparing concrete curing compound |
| CN104774035A (en) * | 2014-01-13 | 2015-07-15 | 北京奥泰利新技术有限公司 | Concrete or building mortar surface reinforcing agent and concrete or building mortar surface reinforcing method |
| CN104927366A (en) * | 2015-06-30 | 2015-09-23 | 广州市斯洛柯高分子聚合物有限公司 | Organic silicon anti-wear agent and preparation method thereof |
| CN108559338A (en) * | 2018-01-12 | 2018-09-21 | 哈尔滨雨阳佳泰环保新材料有限公司 | A kind of concrete alkali-resistant sealing primer and preparation method thereof |
-
2019
- 2019-10-12 CN CN201910965741.6A patent/CN110607098A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088060A (en) * | 1996-09-10 | 1998-04-07 | Yoshiyuki Ogushi | Surface coating agent and method for reinforcing surface of concrete structure by using the same |
| CN1517415A (en) * | 2003-01-16 | 2004-08-04 | 深圳市海川实业股份有限公司 | Aqueous antialkali sealing prime paint and its eracuation method |
| CN101914328A (en) * | 2010-07-30 | 2010-12-15 | 江苏尼高科技有限公司 | Special interface agent for CRTS concrete base plate of ballastless track and preparation method thereof |
| CN103408324A (en) * | 2013-08-22 | 2013-11-27 | 江苏博特新材料有限公司 | Method for preparing concrete curing compound |
| CN104774035A (en) * | 2014-01-13 | 2015-07-15 | 北京奥泰利新技术有限公司 | Concrete or building mortar surface reinforcing agent and concrete or building mortar surface reinforcing method |
| CN104927366A (en) * | 2015-06-30 | 2015-09-23 | 广州市斯洛柯高分子聚合物有限公司 | Organic silicon anti-wear agent and preparation method thereof |
| CN108559338A (en) * | 2018-01-12 | 2018-09-21 | 哈尔滨雨阳佳泰环保新材料有限公司 | A kind of concrete alkali-resistant sealing primer and preparation method thereof |
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