CN110482951A - A kind of preparation method of building waterproof composite material - Google Patents
A kind of preparation method of building waterproof composite material Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/023—Chemical treatment
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2688—Copolymers containing at least three different monomers
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
- C04B2111/00508—Cement paints
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
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Abstract
The present invention relates to a kind of preparation methods of building waterproof composite material, belong to building material technical field.The present invention passes through addition styrene-acrylic emulsion, prepare a kind of building waterproof composite material, styrene-acrylic emulsion is a kind of acrylic vinegar copolymer emulsion being modified with styrene, the methyl methacrylate in lotion is completely or partially replaced using styrene, the introducing of styrene segment helps to improve water resistance, alkali resistance, pollution resistance and the resistance to chalking of film, is used in architectural waterproof material, the durability of material can be improved, and it is high to the adhesion strength of construction substrate.
Description
Technical field
The present invention relates to a kind of preparation methods of building waterproof composite material, belong to building material technical field.
Background technique
Construction material refers to for building and the general name of a variety of materials of field of civil engineering, abbreviation " building materials ".In the narrow sense
Building materials refer to the material for civil engineering, such as steel, timber, glass, cement, coating, usually by cement, steel and timber
Referred to as three big materials of common buildings engineering.Sensu lato building materials further include the material for Architectural Equipment, such as electric wire, water pipe
Deng." construction material " of discipline of architecture refers to the subject studied the physics and chemical characteristic of different construction materials.
Waterproof material is that the building enclosure of building will prevent the infiltration of rainwater, snow-broth and underground water；It prevents in air
Moisture, steam and other pernicious gases and liquid erosion, separation structure will prevent the infiltration of plumbing from turning over；These are impermeable,
Leakage and the material corroded are referred to as, and prevent rainwater, underground water, in industry and civilian plumbing, corrosive liquids and air
The intrusion building such as moisture, steam material, building need the position for carrying out water-proofing treatment be mainly roofing, metope,
Face and basement.
The seepy question of the buildings such as house, bridge annoyings always the people, especially tangible rainy season or South China Urban.It builds
The waterproof leakproof questions and prospect for building object is complicated, is related to design, peripheral environment, construction timber, construction environment, the construction skill of building
In the factors such as art, once and construct terminate leak destructive power it is huge, the every aspect of people's life and work may be influenced.Many rooms
Room building, such as exterion walls, tunnel, basement, toilet bath room coagulation great soil group building will appear various cracks and cause
Significantly percolating water；Especially close to ground such as the hypogees such as garage, warehouse, basement of water source position due to original
It is present in the lower position of topography and is then easier the problem of infiltration leak occur.Cause the original of the leakage of buildings such as house, bridge
Because more complicated, it is related to the factor of the aspects such as design, material, construction, management.
Architectural waterproof material is a critical function of building products, is the use value for being related to building, using item
Part and sanitary condition influence production activity, the quality of working life of people, have consequence to guarantee construction quality.
With the continuous improvement of social life condition, people increasingly pay attention to the quality of life of oneself, require in waterproof condition continuous
Increase.In recent years, along with the development of social science and technology, new waterproof product and its engineer application technology are quickly grown, and towards
Develop from multilayer to single layer, from heat construction to the direction of cold construction.Being constantly progressive and update in face of science and technology grasps waterproof
The preparation of construction of engineering and quality problems are particularly important, and are of great significance to the development of later architectural engineering.
Waterproof material generally uses pitch to be easy to get for waterproofing work with raw material on the market at present, and the material, price are low
It is honest and clean, it works well, but the advantages that, it is common a kind of waterproof material in domestic and international waterproof, seepage control engineering.However, due to itself
Drop down cold short there are heat, weatherability is bad, such as uses for a long time, necessarily undergoes the hot and cold alternation of natural environment, pitch is caused to be made
Waterproof material rupture cause leak again.
Therefore, the single primary raw material using pitch as waterproof material, the waterproof for being no longer satisfied building are anti-
Leak engineering.Now also needing to develop a can be used for a long time, be amenable to expanding with heat and contract with cold for natural environment and not broken waterproof material
To solve the problems, such as buildings leakage.
Currently, the whole world is summed up for the material of building waterproof to be had in two nothing but: one is rigid waterproofings；It is a kind of
It is flexible water.The rigid waterproofing wherein generallyd use is separately to add armored concrete mortar waterproof layer in building basal plane.It is this
Waterproof layer defective tightness in conjunction with basal plane, and there are molecule gaps for waterproof layer itself, reinforcing bar easily corrodes swollen under the action of water
It is swollen, lead to waterproof layer cracking and loses waterproof and anticorrosion effect.Equally, the flexible water generallyd use at present is in building basal plane
Brushing organic matter water-repellent paint forms protective layer.This protective layer is not only easy aging, is layered, falls off, and is also easy in external force
It is destroyed under effect, to lose due waterproof anti-corrosion performance.Above two waterproof material is all in building surface brushing
Waterproof layer.In this way, either rigid waterproofing or flexible water, cannot all be combined into unified entirety with building basal plane.Cause
This, it is easy to there is layering, cracking, aging, phenomena such as falling off, has seriously affected the quality and effect of waterproof, it can not be to building
Object really plays the performance of waterproof and anticorrosion, to reduce the service life of building.
Summary of the invention
The technical problems to be solved by the invention: being in building basal plane brushing for the flexible water generallyd use at present
Organic matter water-repellent paint forms protective layer.This protective layer is not only easy aging, is layered, falls off, and is also easy the effect in external force
Under the problem of being destroyed, provide a kind of preparation method of building waterproof composite material.In order to solve the above technical problems, this hair
It is bright to be using technical solution as described below:
(1) polyvinyl alcohol, carboxymethyl cellulose are added in deionized water, with 180 under 30~40 DEG C of water bath condition
~200r/min revolving speed stirs 20~30min, obtains polymer solution；
(2) portland cement, calcium carbonate powder, modified manometer silicon dioxide, polypropylene fibre are placed in high-speed mixer
It is interior, 25~35min is stirred with 1200~1500r/min revolving speed under room temperature, obtains mixture；
(3) by styrene-acrylic emulsion, polymer solution be added mixture in, under room temperature with 600~800r/min revolving speed stirring 1~
2h obtains building waterproof composite material.
The portland cement, calcium carbonate powder, modified manometer silicon dioxide, styrene-acrylic emulsion, polyvinyl alcohol, polypropylene
Fiber, carboxymethyl cellulose, deionized water parts by weight be 30~40 parts of portland cements, 12~16 parts of calcium carbonate powders, 6~
8 parts of modified manometer silicon dioxides, 15~20 parts of styrene-acrylic emulsions, 6~8 parts of polyvinyl alcohol, 3~4 parts of polypropylene fibres, 1.5~2 parts
Carboxymethyl cellulose, 30~40 parts of deionized waters.
The specific preparation step of modified manometer silicon dioxide described in step (2) are as follows:
(1) dehydrated alcohol is added in deionized water, 12~16min is stirred with 160~180r/min revolving speed under room temperature, is obtained
Ethanol solution；
(2) by methyl triethylsilane be added deionized water in, under room temperature with 200~240r/min revolving speed stirring 30~
40min obtains modification liquid；
(3) nano silica is added in modification liquid, is turned under 60~70 DEG C of water bath condition with 300~400r/min
Speed 20~30min of stirring, obtains suspension；
(4) suspension is placed in ultrasonic dispersing machine, 40~60min is ultrasonically treated under room temperature, obtains dispersion liquid；
(5) dispersion liquid is placed in seperator, 15~20min is centrifugated with 5000~6000r/min under room temperature, is removed
Layer solid, is washed with deionized 3~5 times, is placed in 60~80 DEG C of baking oven dry 1~2h, obtains modified manometer silicon dioxide.
The nano silica, methyl triethylsilane, dehydrated alcohol, deionized water parts by weight be 10~20 parts
Nano silica, 8~16 parts of methyl triethylsilanes, 20~40 parts of dehydrated alcohols, 30~60 parts of deionized waters.
The power of ultrasonic treatment described in step (4) is 500~600W.
The average grain diameter of modified manometer silicon dioxide described in step (5) is 40~50nm.
The specific preparation step of styrene-acrylic emulsion described in step (3) are as follows:
(1) by lauryl sodium sulfate be added deionized water in, under room temperature with 160~180r/min revolving speed stirring 10~
15min obtains emulsifier solution；
(2) acrylic acid, methyl methacrylate, n-butyl acrylate, styrene are added in emulsifier solution, under room temperature
1~2h is stirred with 240~280r/min revolving speed, obtains pre-emulsion；
(3) sodium bicarbonate is added in lotion, with the stirring of 280~300r/min revolving speed under 50~60 DEG C of water bath condition
40~60min obtains mixing pre-emulsion；
(4) ammonium persulfate is added in mixing pre-emulsion, is turned under 80~90 DEG C of water bath condition with 320~360r/min
Speed 1~2h of stirring, adjusts pH to 8~9, room temperature cooling obtains styrene-acrylic emulsion.
The acrylic acid, methyl methacrylate, n-butyl acrylate, styrene, ammonium persulfate, dodecyl sulphate
Sodium, sodium bicarbonate, deionized water parts by weight be 30~40 parts of acrylic acid, 18~24 parts of methyl methacrylates, 15~20 parts
N-butyl acrylate, 15~20 parts of styrene, 0.6~0.8 part of ammonium persulfate, 3~4 parts of lauryl sodium sulfate, 6~8 parts of carbon
Sour hydrogen sodium, 60~80 parts of deionized waters.
PH described in step (4) adjusts the ammonium hydroxide using mass fraction 1%.
The present invention is compared with other methods, and advantageous effects are:
(1) present invention prepares a kind of building waterproof composite material, styrene-acrylic emulsion is a kind of use by addition styrene-acrylic emulsion
The acrylic vinegar copolymer emulsion that styrene is modified completely or partially replaces the methacrylic acid in lotion using styrene
Methyl esters, the introducing of styrene segment help to improve water resistance, alkali resistance, pollution resistance and the resistance to chalking of film, are used for
In architectural waterproof material, the durability of material can be improved, and it is high to the adhesion strength of construction substrate, furthermore styrene valence
Lattice are cheaper than methyl methacrylate, can reduce the price of lotion, and keep the performance of lotion more excellent, work as styrene-acrylic emulsion
After cement mixing and stirring, emulsion dispersion is wrapped in cement gel and unhydrated cement granules etc. in cement slurry phase
Surface, with the progress of aquation, cement gel structure gradually produces and increases, and polymer beads are gradually constrained on pore
In, hydrated cementitious further progress, capillary water content is reduced, and polymer beads continue to agglomerate, and forms continuous closely knit polymer
Settled layer, and on stack layer package to silicate layer, at this point, polymer beads are just filled with the hole in system,
For closelypacked polymer particle agglomeration at continuous film, continuous film is wrapped in cement-hydrate surface on cement-hydrate surface,
And an overall network is gradually formed as a result, the film that polymer is formed in network is embedded in entire hydrated cementitious phase, formation structure
The excellent polymer cement waterproof paint of sealing performance ,-COOR ester of the acrylate copolymer in film forming procedure, in structure
Base group can make original linear structure form three-dimensional interwoven mesh structure, such macromolecular structure by cross-linking modified effect
It is not degradable, and bond energy is stronger, therefore film can resist the effect of ultraviolet light and high temperature, while can also effectively prevent hydrone
Into between macromolecular chain, the degree for applying membrane swelling is reduced, to improve the performance of film, and the lotion is with harshnesses such as soda acids
Under the conditions of, film still has good mechanical property, and it is good with the stability after cement mixing, it is easily dry, it is anti-not influence building
The workability of water material and construction time limit.
Specific embodiment
According to parts by weight, 30~40 parts of acrylic acid, 18~24 parts of methyl methacrylates, 15~20 part third are weighed respectively
Olefin(e) acid N-butyl, 15~20 parts of styrene, 0.6~0.8 part of ammonium persulfate, 3~4 parts of lauryl sodium sulfate, 6~8 parts of carbonic acid
Lauryl sodium sulfate is added in deionized water for hydrogen sodium, 60~80 parts of deionized waters, is turned under room temperature with 160~180r/min
Speed 10~15min of stirring, obtains emulsifier solution, and acrylic acid, methyl methacrylate, n-butyl acrylate, styrene are added
In emulsifier solution, 1~2h is stirred with 240~280r/min revolving speed under room temperature, pre-emulsion is obtained, lotion is added in sodium bicarbonate
In, 40~60min is stirred with 280~300r/min revolving speed under 50~60 DEG C of water bath condition, mixing pre-emulsion is obtained, by over cure
Sour ammonium is added in mixing pre-emulsion, stirs 1~2h under 80~90 DEG C of water bath condition with 320~360r/min revolving speed, is added dropwise
The ammonium hydroxide of mass fraction 1% adjusts pH to 8~9, and room temperature cooling obtains styrene-acrylic emulsion；Again according to parts by weight, respectively weigh 10~
20 parts of nano silicas, 8~16 parts of methyl triethylsilanes, 20~40 parts of dehydrated alcohols, 30~60 parts of deionized waters, by nothing
Water-ethanol is added in deionized water, stirs 12~16min under room temperature with 160~180r/min revolving speed, ethanol solution is obtained, by methyl
Triethylsilane is added in deionized water, stirs 30~40min under room temperature with 200~240r/min revolving speed, obtains modification liquid, will receive
Rice silica be added modification liquid in, under 60~70 DEG C of water bath condition with 300~400r/min revolving speed stirring 20~
30min obtains suspension, and suspension is placed in ultrasonic dispersing machine, under room temperature with the power of 500~600W ultrasonic treatment 40~
60min obtains dispersion liquid, and dispersion liquid is placed in seperator, is centrifugated 15~20min under room temperature with 5000~6000r/min,
Take lower layer's solid, be washed with deionized 3~5 times, be placed in 60~80 DEG C of baking oven dry 1~2h, obtain average grain diameter 40~
The modified manometer silicon dioxide of 50nm；Again according to parts by weight, 30~40 parts of portland cements, 12~16 parts of carbonic acid are weighed respectively
Calcium powder, 6~8 parts of modified manometer silicon dioxides, 15~20 parts of styrene-acrylic emulsions, 6~8 parts of polyvinyl alcohol, 3~4 parts of polypropylene fibres
Deionized water is added in polyvinyl alcohol, carboxymethyl cellulose by dimension, 1.5~2 parts of carboxymethyl celluloses, 30~40 parts of deionized waters
In, 20~30min is stirred with 180~200r/min revolving speed under 30~40 DEG C of water bath condition, polymer solution is obtained, by silicic acid
Salt cement, calcium carbonate powder, modified manometer silicon dioxide, polypropylene fibre are placed in high-speed mixer, under room temperature with 1200~
1500r/min revolving speed stirs 25~35min, obtains mixture, styrene-acrylic emulsion, polymer solution is added in mixture, under room temperature
1~2h is stirred with 600~800r/min revolving speed, obtains building waterproof composite material.
Embodiment 1
According to parts by weight, respectively weigh 30 parts of acrylic acid, 18 parts of methyl methacrylates, 15 parts of n-butyl acrylates,
15 parts of styrene, 0.6 part of ammonium persulfate, 3 parts of lauryl sodium sulfate, 6 parts of sodium bicarbonates, 60 parts of deionized waters, by dodecane
Base sodium sulphate is added in deionized water, stirs 10min under room temperature with 160r/min revolving speed, emulsifier solution is obtained, by acrylic acid, first
Base methyl acrylate, n-butyl acrylate, styrene are added in emulsifier solution, stir 1h under room temperature with 240r/min revolving speed,
Pre-emulsion is obtained, sodium bicarbonate is added in lotion, 40min is stirred with 280r/min revolving speed under 50 DEG C of water bath condition, is obtained mixed
Pre-emulsion is closed, ammonium persulfate is added in mixing pre-emulsion, 1h, drop are stirred with 320r/min revolving speed under 80 DEG C of water bath condition
The ammonium hydroxide of mass fraction 1% is added to adjust pH to 8, room temperature cooling obtains styrene-acrylic emulsion；Again according to parts by weight, 10 parts are weighed respectively
Nano silica, 8 parts of methyl triethylsilanes, 20 parts of dehydrated alcohols, 30 parts of deionized waters, are added deionization for dehydrated alcohol
In water, 12min is stirred with 160r/min revolving speed under room temperature, obtains ethanol solution, methyl triethylsilane is added in deionized water,
30min is stirred with 200r/min revolving speed under room temperature, obtains modification liquid, nano silica is added in modification liquid, in 60 DEG C of water
Under the conditions of bath with 300r/min revolving speed stir 20min, obtain suspension, suspension be placed in ultrasonic dispersing machine, under room temperature with
The power of 500W is ultrasonically treated 40min, obtains dispersion liquid, dispersion liquid is placed in seperator, with 5000r/min centrifugation point under room temperature
From 15min, lower layer's solid is taken, is washed with deionized 3 times, dry 1h is placed in 60 DEG C of baking oven, obtains average grain diameter 40nm's
Modified manometer silicon dioxide；Again according to parts by weight, 30 parts of portland cements, 12 parts of calcium carbonate powders, 6 parts of modifications are weighed respectively
Nano silica, 15 parts of styrene-acrylic emulsions, 6 parts of polyvinyl alcohol, 3 parts of polypropylene fibres, 1.5 parts of carboxymethyl celluloses, 30 parts go
Ionized water polyvinyl alcohol, carboxymethyl cellulose is added in deionized water, with 180r/min revolving speed under 30 DEG C of water bath condition
20min is stirred, polymer solution is obtained, portland cement, calcium carbonate powder, modified manometer silicon dioxide, polypropylene fibre is set
In in high-speed mixer, 25min is stirred with 1200r/min revolving speed under room temperature, mixture is obtained, by styrene-acrylic emulsion, polymer solution
It is added in mixture, 1h is stirred with 600r/min revolving speed under room temperature, obtains building waterproof composite material.
Embodiment 2
According to parts by weight, respectively weigh 35 parts of acrylic acid, 21 parts of methyl methacrylates, 17 parts of n-butyl acrylates,
17 parts of styrene, 0.7 part of ammonium persulfate, 3.5 parts of lauryl sodium sulfate, 7 parts of sodium bicarbonates, 70 parts of deionized waters, by 12
Sodium alkyl sulfate be added deionized water in, under room temperature with 170r/min revolving speed stir 13min, obtain emulsifier solution, by acrylic acid,
Methyl methacrylate, n-butyl acrylate, styrene are added in emulsifier solution, with the stirring of 260r/min revolving speed under room temperature
1.5h obtains pre-emulsion, and sodium bicarbonate is added in lotion, stirs 50min under 55 DEG C of water bath condition with 290r/min revolving speed,
Pre-emulsion must be mixed, ammonium persulfate is added in mixing pre-emulsion, with the stirring of 340r/min revolving speed under 85 DEG C of water bath condition
1.5h, the ammonium hydroxide that mass fraction 1% is added dropwise adjust pH to 8.5, and room temperature cooling obtains styrene-acrylic emulsion；Again according to parts by weight, respectively
15 parts of nano silicas, 12 parts of methyl triethylsilanes, 30 parts of dehydrated alcohols, 45 parts of deionized waters are weighed, by dehydrated alcohol
It is added in deionized water, 14min is stirred with 160~180r/min revolving speed under room temperature, ethanol solution is obtained, by methyl triethylsilane
It is added in deionized water, 35min is stirred with 220r/min revolving speed under room temperature, obtains modification liquid, nano silica is added and is modified
In liquid, 25min is stirred with 350r/min revolving speed under 65 DEG C of water bath condition, suspension is obtained, suspension is placed in ultrasonic wavelength-division
Dissipate in machine, 50min be ultrasonically treated with the power of 550W under room temperature, dispersion liquid is obtained, dispersion liquid is placed in seperator, under room temperature with
5500r/min is centrifugated 17min, takes lower layer's solid, is washed with deionized 4 times, is placed in 70 DEG C of baking oven dry 1.5h,
Obtain the modified manometer silicon dioxide of average grain diameter 45nm；Again according to parts by weight, 35 parts of portland cements, 14 parts of carbon are weighed respectively
Sour calcium powder, 7 parts of modified manometer silicon dioxides, 17 parts of styrene-acrylic emulsions, 7 parts of polyvinyl alcohol, 3.5 parts of polypropylene fibres, 1.7 parts of carboxylics
Methylcellulose, 35 parts of deionized waters polyvinyl alcohol, carboxymethyl cellulose are added in deionized water, in 35 DEG C of water-bath item
25min is stirred with 190r/min revolving speed under part, polymer solution is obtained, by portland cement, calcium carbonate powder, modified nano-silica
SiClx, polypropylene fibre are placed in high-speed mixer, are stirred 30min under room temperature with 1350r/min revolving speed, mixture are obtained, by benzene
Acrylic emulsion, polymer solution are added in mixture, stir 1.5h under room temperature with 700r/min revolving speed, obtain building composite water-proof material
Material.
Embodiment 3
According to parts by weight, respectively weigh 40 parts of acrylic acid, 24 parts of methyl methacrylates, 20 parts of n-butyl acrylates,
20 parts of styrene, 0.8 part of ammonium persulfate, 4 parts of lauryl sodium sulfate, 8 parts of sodium bicarbonates, 80 parts of deionized waters, by dodecane
Base sodium sulphate is added in deionized water, stirs 15min under room temperature with 180r/min revolving speed, emulsifier solution is obtained, by acrylic acid, first
Base methyl acrylate, n-butyl acrylate, styrene are added in emulsifier solution, stir 2h under room temperature with 280r/min revolving speed,
Pre-emulsion is obtained, sodium bicarbonate is added in lotion, 60min is stirred with 300r/min revolving speed under 60 DEG C of water bath condition, is obtained mixed
Pre-emulsion is closed, ammonium persulfate is added in mixing pre-emulsion, 2h, drop are stirred with 360r/min revolving speed under 90 DEG C of water bath condition
The ammonium hydroxide of mass fraction 1% is added to adjust pH to 9, room temperature cooling obtains styrene-acrylic emulsion；Again according to parts by weight, 20 parts are weighed respectively
Nano silica, 16 parts of methyl triethylsilanes, 40 parts of dehydrated alcohols, 60 parts of deionized waters, by dehydrated alcohol addition go from
In sub- water, 16min is stirred with 180r/min revolving speed under room temperature, obtains ethanol solution, deionized water is added in methyl triethylsilane
In, 40min is stirred with 240r/min revolving speed under room temperature, obtains modification liquid, nano silica is added in modification liquid, at 70 DEG C
30min is stirred with 400r/min revolving speed under water bath condition, suspension is obtained, suspension is placed in ultrasonic dispersing machine, under room temperature
It is ultrasonically treated 60min with the power of 600W, dispersion liquid is obtained, dispersion liquid is placed in seperator, be centrifuged under room temperature with 6000r/min
20min is separated, lower layer's solid is taken, is washed with deionized 5 times, dry 2h is placed in 80 DEG C of baking oven, obtains average grain diameter 50nm
Modified manometer silicon dioxide；Again according to parts by weight, respectively weigh 40 parts of portland cements, 16 parts of calcium carbonate powders, 8 parts change
Property nano silica, 20 parts of styrene-acrylic emulsions, 8 parts of polyvinyl alcohol, 4 parts of polypropylene fibres, 2 parts of carboxymethyl celluloses, 40 parts go
Ionized water polyvinyl alcohol, carboxymethyl cellulose is added in deionized water, with 200r/min revolving speed under 40 DEG C of water bath condition
30min is stirred, polymer solution is obtained, portland cement, calcium carbonate powder, modified manometer silicon dioxide, polypropylene fibre is set
In in high-speed mixer, 35min is stirred with 1500r/min revolving speed under room temperature, mixture is obtained, by styrene-acrylic emulsion, polymer solution
It is added in mixture, 2h is stirred with 800r/min revolving speed under room temperature, obtains building waterproof composite material.
Building waterproof composite material prepared by the present invention and traditional asphalt sill are subjected to performance detection, it is specific to detect
As a result such as following table table 1.
It overlays wet-laying waterproof roll standard using≤GBT/23457-2009 and answers traditional asphalt sill with this building
It closes waterproof material and is prepared into waterproof cement plate with concrete respectively, then waterproof cement plate soaks 7 days, carry out waterproof test.
1 building waterproof composite material performance characterization of table
As shown in Table 1, building waterproof composite material prepared by the present invention, good water-proof effect, resistance to ag(e)ing is good, not easy-peel
From excellent combination property.
Claims (9)
1. a kind of preparation method of building waterproof composite material, which is characterized in that specific preparation step are as follows:
(1) polyvinyl alcohol, carboxymethyl cellulose are added in deionized water, under 30~40 DEG C of water bath condition with 180~
200r/min revolving speed stirs 20~30min, obtains polymer solution；
(2) portland cement, calcium carbonate powder, modified manometer silicon dioxide, polypropylene fibre are placed in high-speed mixer, often
25~35min is stirred with 1200~1500r/min revolving speed under temperature, obtains mixture；
(3) styrene-acrylic emulsion, polymer solution are added in mixture, 1~2h are stirred with 600~800r/min revolving speed under room temperature,
Obtain building waterproof composite material.
2. a kind of preparation method of building waterproof composite material according to claim 1, which is characterized in that the silicon
Acid salt cement, calcium carbonate powder, modified manometer silicon dioxide, styrene-acrylic emulsion, polyvinyl alcohol, polypropylene fibre, carboxymethyl cellulose
Plain, deionized water parts by weight are 30~40 parts of portland cements, 12~16 parts of calcium carbonate powders, 6~8 parts of modified nano-silicas
SiClx, 15~20 parts of styrene-acrylic emulsions, 6~8 parts of polyvinyl alcohol, 3~4 parts of polypropylene fibres, 1.5~2 parts of carboxymethyl celluloses, 30
~40 parts of deionized waters.
3. a kind of preparation method of building waterproof composite material according to claim 1, which is characterized in that step (2)
The specific preparation step of the modified manometer silicon dioxide are as follows:
(1) dehydrated alcohol is added in deionized water, 12~16min is stirred with 160~180r/min revolving speed under room temperature, obtains ethyl alcohol
Solution；
(2) methyl triethylsilane is added in deionized water, 30~40min is stirred with 200~240r/min revolving speed under room temperature,
Obtain modification liquid；
(3) nano silica is added in modification liquid, is stirred under 60~70 DEG C of water bath condition with 300~400r/min revolving speed
20~30min is mixed, suspension is obtained；
(4) suspension is placed in ultrasonic dispersing machine, 40~60min is ultrasonically treated under room temperature, obtains dispersion liquid；
(5) dispersion liquid is placed in seperator, 15~20min is centrifugated with 5000~6000r/min under room temperature, take lower layer solid
Body is washed with deionized 3~5 times, is placed in 60~80 DEG C of baking oven dry 1~2h, obtains modified manometer silicon dioxide.
4. a kind of preparation method of building waterproof composite material according to claim 3, which is characterized in that described receives
Rice silica, methyl triethylsilane, dehydrated alcohol, deionized water parts by weight be 10~20 parts of nano silicas, 8~
16 parts of methyl triethylsilanes, 20~40 parts of dehydrated alcohols, 30~60 parts of deionized waters.
5. a kind of preparation method of building waterproof composite material according to claim 3, which is characterized in that step (4)
The power of the ultrasonic treatment is 500~600W.
6. a kind of preparation method of building waterproof composite material according to claim 3, which is characterized in that step (5)
The average grain diameter of the modified manometer silicon dioxide is 40~50nm.
7. a kind of preparation method of building waterproof composite material according to claim 1, which is characterized in that step (3)
The specific preparation step of the styrene-acrylic emulsion are as follows:
(1) lauryl sodium sulfate is added in deionized water, 10~15min is stirred with 160~180r/min revolving speed under room temperature,
Obtain emulsifier solution；
(2) by acrylic acid, methyl methacrylate, n-butyl acrylate, styrene be added emulsifier solution in, under room temperature with
240~280r/min revolving speed stirs 1~2h, obtains pre-emulsion；
(3) by sodium bicarbonate be added lotion in, under 50~60 DEG C of water bath condition with 280~300r/min revolving speed stirring 40~
60min obtains mixing pre-emulsion；
(4) ammonium persulfate is added in mixing pre-emulsion, is stirred under 80~90 DEG C of water bath condition with 320~360r/min revolving speed
1~2h is mixed, pH to 8~9 is adjusted, room temperature cooling obtains styrene-acrylic emulsion.
8. a kind of preparation method of building waterproof composite material according to claim 3, which is characterized in that described third
Olefin(e) acid, methyl methacrylate, n-butyl acrylate, styrene, ammonium persulfate, lauryl sodium sulfate, sodium bicarbonate, go from
The parts by weight of sub- water be 30~40 parts of acrylic acid, 18~24 parts of methyl methacrylates, 15~20 parts of n-butyl acrylates, 15~
20 parts of styrene, 0.6~0.8 part of ammonium persulfate, 3~4 parts of lauryl sodium sulfate, 6~8 parts of sodium bicarbonates, 60~80 parts go
Ionized water.
9. a kind of preparation method of building waterproof composite material according to claim 3, which is characterized in that step (4)
The pH adjusts the ammonium hydroxide using mass fraction 1%.
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|---|---|---|---|---|
| CN111574864A (en) * | 2020-04-30 | 2020-08-25 | 深圳市卓宝科技股份有限公司 | Asphalt-based coating for pre-paved waterproof system |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111574864A (en) * | 2020-04-30 | 2020-08-25 | 深圳市卓宝科技股份有限公司 | Asphalt-based coating for pre-paved waterproof system |
| CN111574864B (en) * | 2020-04-30 | 2022-03-11 | 深圳市卓宝科技股份有限公司 | Asphalt-based coating for pre-paved waterproof system |
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Application publication date: 20191122 |