CN109053053A - A kind of polymer cement waterproof paint - Google Patents
A kind of polymer cement waterproof paint Download PDFInfo
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- CN109053053A CN109053053A CN201811134569.1A CN201811134569A CN109053053A CN 109053053 A CN109053053 A CN 109053053A CN 201811134569 A CN201811134569 A CN 201811134569A CN 109053053 A CN109053053 A CN 109053053A
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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
-
- 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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- 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
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1044—Bituminous materials
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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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- 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
- C04B28/06—Aluminous cements
-
- 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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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a kind of polymer cement waterproof paints, belong to building material technical field.The present invention is by silicon carbide whisker ball milling, the sieve for crossing 120 mesh obtains refinement whisker, by refinement whisker and hydrofluoric acid 1:10~1:20 mixed processing in mass ratio, filtering, washing, obtains pretreatment whisker, according to parts by weight, by 20~30 parts of pretreatment whiskers, 10~20 parts of low-melting alloys, 30~40 parts of paraffin mixing and ball millings are to get modified crystal whiskers；By cement, heavy calcium carbonate, silica flour, modified filler, modified crystal whiskers, silane coupling agent, water-reducing agent and acrylic emulsion are stirred to get polymer cement waterproof paint.The polymer cement waterproof paint of technical solution of the present invention preparation has the characteristics that excellent waterproof performance and mechanical property, has broad prospects in the development of building material technology industry.
Description
Technical field
The invention discloses a kind of polymer cement waterproof paints, belong to building material technical field.
Background technique
Polymer cement waterproof paint, abbreviation JS water-repellent paint.Polymer cement waterproof paint is one kind with polyacrylic acid
The organic liquid and cement of the polymer emulsions such as ester lotion, ethylene-vinyl acetate copolymer emulsion and various additives composition,
Quartz sand and various additives, inorganic filler composition inorganic powder pass through rational proportion, a kind of compounded bi-component, water
Property building water-proof paint.Its water-proof mechanism is the transmission or the infiltration of hydrone for stopping water by forming complete film.It is many
High molecular material can form complete continuous film after the drying.There are some gaps between the molecule and molecule of solid macromolecule,
Its gap width is about several nanometers, and normally single hydrone is can to pass through from these gaps completely, but nature
Water be generally in associated state, form a biggish water clusters due to the effect of hydrogen bond between tens hydrones,
Hydrone is actually difficult to through the gap between macromolecule in this way, so polymer cement waterproof paint film both had
Gas has the function of waterproof again.
Polymer cement waterproof paint is due to construction is simple, coating strength height, good water-proof effect, and development is very fast in recent years,
It is widely used in building waterproofing industry.Polymer cement waterproof paint mainly with organic polymeric emulsions and inorganic cement with
And pigments and fillers, as main body, poor compatibility limits the further promotion of its comprehensive performance between the two, it is difficult to obtain
Tensile strength and the higher film of elongation at break.Common polymer cement waterproof paint crack resistance is poor, usually because of base
Layer contraction distortion and be opened.Currently, conventional method is to improve polymer cement waterproof by addition silane coupling agent to apply
The performance of material.Silane coupling agent can be mentioned significantly since its special structure has a very wide range of applications in field of compound material
The properties for rising composite material, make up some defects of composite material.It is even that silane is added in polymer cement waterproof paint
Connection agent can effectively improve compatibility and binding force between organic material and inorganic material, promote the properties of water-repellent paint.
And conventional cement water-repellent paint the problem of can not being further increased there is also waterproof performance and mechanical property.Therefore,
The shortcomings that how improving traditional polymer cement waterproof paint is that it is promoted and applies to obtain the promotion of more high combination property
In broader field, meet industrial production demand urgent problem to be solved.
Summary of the invention
The present invention solves the technical problem of: for traditional polymer cement waterproof paint, there are waterproof performances and power
The problem of performance can not further increase is learned, a kind of polymer cement waterproof paint is provided.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of polymer cement waterproof paint is made of the raw material of following parts by weight:
20~30 parts of cement
20~30 parts of heavy calcium carbonate
10~20 parts of silica flour
10~20 parts of modified filler
8~10 parts of modified crystal whiskers
3~5 parts of silane coupling agent
3~5 parts of water-reducing agent
40~50 parts of acrylic emulsion
The process for preparation of the polymer cement waterproof paint are as follows: each raw material is weighed by raw material composition, by cement, powdered whiting
Powder, silica flour, modified filler, modified crystal whiskers, silane coupling agent, water-reducing agent and acrylic emulsion are stirred to get polymer
Cement waterproof paint.
The cement is portland cement, any one in aluminate cement or sulfate cement.
The fineness of the silica flour is 1.6~1.2.
The preparation process of the modified filler are as follows: according to parts by weight, by 8~10 parts of flyash, 8~10 parts of hydroxides
Aluminium, 30~40 parts of water for ball milling mixing, obtains No. 1 mixed liquor；According to parts by weight, by 20~30 parts of acrylonitrile, 10~20 portions of flax
Seed oil, 5~8 parts of azodiisobutyronitriles, 5~8 parts of pentanes, 5~8 parts of methyl methacrylate mixing ultrasounds obtain No. 2 mixing
Liquid；No. 2 mixed liquors and No. 1 mixed liquor 1:5~1:10 low-temperature and high-speed in mass ratio are sheared, the reaction of nitrogen charging high pressure heat-preserving, cooling,
Pressure release discharges, and filters, and washing obtains modified filler.
The preparation process of the modified crystal whiskers are as follows: by silicon carbide whisker ball milling, the sieve of 120 mesh is crossed, refinement whisker is obtained, it will be thin
To change whisker and hydrofluoric acid 1:10~1:20 mixed processing in mass ratio, filters, washing obtains pretreatment whisker, according to parts by weight,
By 20~30 parts of pretreatment whiskers, 10~20 parts of low-melting alloys, 30~40 parts of paraffin mixing and ball millings are to get modified crystal whiskers.
The silane coupling agent is silane resin acceptor kh-550, in silane resin acceptor kh-550 or Silane coupling reagent KH-570
Any one.
The water-reducing agent is sodium lignin sulfonate, in TH-928 poly carboxylic acid series water reducer or YZ-1 naphthalene series high-efficiency water-reducing agent
Any one.
The acrylic emulsion solid content is 50~60%.
The beneficial effects of the present invention are:
The present invention is by addition modified filler and modified crystal whiskers, in use, firstly, with cement hydration process into
It goes, a large amount of heat, the heated volatilization of the pentane wrapped up inside modified filler, so that the increasing of modified filler volume is generated in system
Greatly, during modified filler volume increases, so that system is further compacted, so that the consistency of system obtains
To promotion, meanwhile, so that the vapour lock of system increases, effectively outside moisture is avoided to enter in system, so that system is anti-
It is aqueous to get a promotion, secondly, hydrated cementitious heat release makes the paraffin melted by heat on modified crystal whiskers surface, liquid paraffin tool
There is good greasy property, the low-melting alloy for being conducive to whisker and dispersing in system, and include in paraffin also can be in system
In good dispersion, meanwhile, paraffin rises to system surface, form paraffin layer so that the waterproof performance of system gets a promotion, with
The exothermic progress of hydrated cementitious so that the temperature of system is gradually increasing so that the low-melting alloy fusing being dispersed in system,
Low-melting alloy after fusing is dispersed in around whisker, forms metallurgical bonding between whisker after alloy graining, the structure in system
At whisker skeleton, so that the mechanical property of system is promoted, again, during modified filler expanded by heating, modified crystal whiskers are by crowded
Pressure, so that the metallurgical bonding between whisker is further reinforced, meanwhile, part whisker can pierce modified filler, on the one hand, so that changing
The roughness of property filler surface is improved, so that mechanical snap is easily formed between modified filler, so that the mechanical property of system obtains
To promotion, on the other hand, modified filler provides elastic support points for whisker, so that cushion performance internal in system is mentioned
It rises, to avoid ambient pressure from damaging system, so that the mechanical property of system is further promoted.
Specific embodiment
According to parts by weight, by 8~10 parts of flyash, 8~10 parts of aluminium hydroxides, 30~40 parts of water are placed in ball in ball mill
Mill 30~50min of mixing, obtains No. 1 mixed liquor；According to parts by weight, by 20~30 parts of acrylonitrile, 10~20 portions of linseed oil, 5
~8 parts of azodiisobutyronitriles, 5~8 parts of pentanes, 5~8 parts of methyl methacrylates are placed in No. 1 beaker, and by No. 1 beaker
It is placed in ultrasonic disperse instrument, under the conditions of supersonic frequency is 55~75kHz, mixes 30~50min of ultrasound, obtain No. 2 mixed liquors；It will
No. 2 mixed liquors and No. 1 mixed liquor 1:5~1:10 in mass ratio are placed in shearing homogenizer, low under the conditions of temperature is 1~5 DEG C
Warm 5~10min of high speed shear, obtains homogeneous mixed liquor, and then homogeneous mixed liquor is placed in autoclave, and with 60~
90mL/min rate is filled with nitrogen into reaction kettle, and in 0.8~1.2MPa of pressure, temperature is 60~80 DEG C, nitrogen charging heat-insulation pressure keeping
After reacting 30~50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging obtains mixed serum, then
Mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 5~8 is then obtained into modified filler with deionized water；Silicon carbide whisker is set
The ball milling in ball mill crosses the sieve of 120 mesh, obtains refinement whisker, will refine the hydrofluoric acid that whisker is 30~35% with mass fraction and presses
Mass ratio 1:10~1:20 is placed in mixing kettle, in revolving speed be 300~500r/min under the conditions of, be stirred processing 20~
After 30min, filtering obtains filter residue, and residue washing to cleaning solution is neutrality by the ammonium hydroxide for being then 20~30% with mass fraction, obtains
Whisker is pre-processed, according to parts by weight, by 20~30 parts of pretreatment whiskers, 10~20 parts of low-melting alloys, 30~40 parts of paraffin
40~60min of mixing and ball milling is placed in ball mill to get modified crystal whiskers；According to parts by weight, by 20~30 parts of cement, 20~30
Part heavy calcium carbonate, 10~20 parts of silica flours, 10~20 parts of modified fillers, 8~10 parts of modified crystal whiskers, 3~5 parts silane coupled
Agent, 3~5 parts of water-reducing agents and 40~50 parts of acrylic emulsions are placed in batch mixer, under the conditions of revolving speed is 100~200r/min,
40~60min is stirred to get polymer cement waterproof paint.The cement is portland cement, aluminate cement or sulphur
Any one in acid salt cement.The fineness of the silica flour is 1.6~1.2.The silane coupling agent is silane coupling agent KH-
550, any one in silane resin acceptor kh-550 or Silane coupling reagent KH-570.The water-reducing agent is sodium lignin sulfonate,
Any one in TH-928 poly carboxylic acid series water reducer or YZ-1 naphthalene series high-efficiency water-reducing agent.The acrylic emulsion solid content is 50
~60%.The low-melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%
(ω), lead account for 8%(ω), indium accounts for 11%(ω).
According to parts by weight, by 10 parts of flyash, 10 parts of aluminium hydroxides, 40 parts of water are placed in ball milling mixing in ball mill
50min obtains No. 1 mixed liquor；According to parts by weight, by 30 parts of acrylonitrile, 20 portions of linseed oil, 8 parts of azodiisobutyronitriles, 8 parts
Pentane, 8 parts of methyl methacrylates are placed in No. 1 beaker, and No. 1 beaker is placed in ultrasonic disperse instrument, in supersonic frequency
Under the conditions of 75kHz, ultrasound 50min is mixed, No. 2 mixed liquors are obtained；No. 2 mixed liquors and No. 1 mixed liquor 1:10 in mass ratio are set
In shearing homogenizer, under the conditions of temperature is 5 DEG C, low-temperature and high-speed shears 10min, obtains homogeneous mixed liquor, then mixes homogeneous
It closes liquid to be placed in autoclave, and nitrogen is filled with into reaction kettle with 90mL/min rate, in pressure 1.2MPa, temperature 80
DEG C, after nitrogen charging heat-insulation pressure keeping reacts 50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging obtains
Mixed serum, then mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 8 is then obtained into modified filler with deionized water；It will carbonization
Silicon wafer must be placed in ball milling in ball mill, cross the sieve of 120 mesh, obtain refinement whisker, will refine the hydrogen fluorine that whisker and mass fraction are 35%
Acid 1:20 in mass ratio is placed in mixing kettle, and under the conditions of revolving speed is 500r/min, after being stirred processing 30min, filtering is obtained
Residue washing to cleaning solution is neutrality by filter residue, the ammonium hydroxide for being then 30% with mass fraction, obtains pretreatment whisker, by weight
Number meter, by 30 parts of pretreatment whiskers, 20 parts of low-melting alloys, 40 parts of paraffin are placed in ball mill mixing and ball milling 60min to get changing
Property whisker；According to parts by weight, by 30 parts of cement, 30 parts of heavy calcium carbonates, 20 parts of silica flours, 20 parts of modified fillers, 10 parts
Modified crystal whiskers, 5 parts of silane coupling agents, 5 parts of water-reducing agents and 50 parts of acrylic emulsions are placed in batch mixer, in revolving speed be 200r/min
Under the conditions of, 60min is stirred to get polymer cement waterproof paint.The cement is portland cement.The silica flour
Fineness is 1.2.The silane coupling agent is silane resin acceptor kh-550.The water-reducing agent is sodium lignin sulfonate.The propylene
Yogurt fluid solid content is 60%.The low-melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%
(ω), tin account for 30%(ω), lead accounts for 8%(ω), indium accounts for 11%(ω).
According to parts by weight, by 10 parts of flyash, 10 parts of aluminium hydroxides, 40 parts of water are placed in ball milling mixing in ball mill
50min obtains No. 1 mixed liquor；According to parts by weight, by 30 parts of acrylonitrile, 20 portions of linseed oil, 8 parts of azodiisobutyronitriles, 8 parts
Pentane, 8 parts of methyl methacrylates are placed in No. 1 beaker, and No. 1 beaker is placed in ultrasonic disperse instrument, in supersonic frequency
Under the conditions of 75kHz, ultrasound 50min is mixed, No. 2 mixed liquors are obtained；No. 2 mixed liquors and No. 1 mixed liquor 1:10 in mass ratio are set
In shearing homogenizer, under the conditions of temperature is 5 DEG C, low-temperature and high-speed shears 10min, obtains homogeneous mixed liquor, then mixes homogeneous
It closes liquid to be placed in autoclave, and nitrogen is filled with into reaction kettle with 90mL/min rate, in pressure 1.2MPa, temperature 80
DEG C, after nitrogen charging heat-insulation pressure keeping reacts 50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging obtains
Mixed serum, then mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 8 is then obtained into modified filler with deionized water；It will carbonization
Silicon wafer must be placed in ball milling in ball mill, cross the sieve of 120 mesh, obtain refinement whisker, will refine the hydrogen fluorine that whisker and mass fraction are 35%
Acid 1:20 in mass ratio is placed in mixing kettle, and under the conditions of revolving speed is 500r/min, after being stirred processing 30min, filtering is obtained
Residue washing to cleaning solution is neutrality by filter residue, the ammonium hydroxide for being then 30% with mass fraction, obtains pretreatment whisker, by weight
Number meter, by 30 parts of pretreatment whiskers, 20 parts of low-melting alloys, 40 parts of paraffin are placed in ball mill mixing and ball milling 60min to get changing
Property whisker；According to parts by weight, by 30 parts of cement, 20 parts of silica flours, 20 parts of modified fillers, 10 parts of modified crystal whiskers, 5 parts of silane idols
Join agent, 5 parts of water-reducing agents and 50 parts of acrylic emulsions are placed in batch mixer, under the conditions of revolving speed is 200r/min, are stirred
60min is to get polymer cement waterproof paint.The cement is portland cement.The fineness of the silica flour is 1.2.It is described
Silane coupling agent is silane resin acceptor kh-550.The water-reducing agent is sodium lignin sulfonate.The acrylic emulsion solid content is
60%.The low-melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%
(ω), lead account for 8%(ω), indium accounts for 11%(ω).
According to parts by weight, by 10 parts of flyash, 10 parts of aluminium hydroxides, 40 parts of water are placed in ball milling mixing in ball mill
50min obtains No. 1 mixed liquor；According to parts by weight, by 30 parts of acrylonitrile, 20 portions of linseed oil, 8 parts of azodiisobutyronitriles, 8 parts
Pentane, 8 parts of methyl methacrylates are placed in No. 1 beaker, and No. 1 beaker is placed in ultrasonic disperse instrument, in supersonic frequency
Under the conditions of 75kHz, ultrasound 50min is mixed, No. 2 mixed liquors are obtained；No. 2 mixed liquors and No. 1 mixed liquor 1:10 in mass ratio are set
In shearing homogenizer, under the conditions of temperature is 5 DEG C, low-temperature and high-speed shears 10min, obtains homogeneous mixed liquor, then mixes homogeneous
It closes liquid to be placed in autoclave, and nitrogen is filled with into reaction kettle with 90mL/min rate, in pressure 1.2MPa, temperature 80
DEG C, after nitrogen charging heat-insulation pressure keeping reacts 50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging obtains
Mixed serum, then mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 8 is then obtained into modified filler with deionized water；It will carbonization
Silicon wafer must be placed in ball milling in ball mill, cross the sieve of 120 mesh, obtain refinement whisker, will refine the hydrogen fluorine that whisker and mass fraction are 35%
Acid 1:20 in mass ratio is placed in mixing kettle, and under the conditions of revolving speed is 500r/min, after being stirred processing 30min, filtering is obtained
Residue washing to cleaning solution is neutrality by filter residue, the ammonium hydroxide for being then 30% with mass fraction, obtains pretreatment whisker, by weight
Number meter, by 30 parts of pretreatment whiskers, 20 parts of low-melting alloys, 40 parts of paraffin are placed in ball mill mixing and ball milling 60min to get changing
Property whisker；According to parts by weight, by 30 parts of cement, 30 parts of heavy calcium carbonates, 20 parts of modified fillers, 10 parts of modified crystal whiskers, 5 parts
Silane coupling agent, 5 parts of water-reducing agents and 50 parts of acrylic emulsions are placed in batch mixer, under the conditions of revolving speed is 200r/min, stirring
60min is mixed to get polymer cement waterproof paint.The cement is portland cement.The silane coupling agent is that silane is even
Join agent KH-550.The water-reducing agent is sodium lignin sulfonate.The acrylic emulsion solid content is 60%.The low-melting alloy
For bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω) and, lead accounts for 8%(ω), indium accounts for
11%(ω).
Silicon carbide whisker is placed in ball milling in ball mill, the sieve of 120 mesh is crossed, obtains refinement whisker, by refinement whisker and quality
The hydrofluoric acid 1:20 in mass ratio that score is 35% is placed in mixing kettle, under the conditions of revolving speed is 500r/min, is stirred processing
After 30min, filtering obtains filter residue, and residue washing to cleaning solution is neutrality by the ammonium hydroxide for being then 30% with mass fraction, obtains pre- place
Whisker is managed, according to parts by weight, by 30 parts of pretreatment whiskers, 20 parts of low-melting alloys, 40 parts of paraffin are placed in ball mill and mix
Ball milling 60min is to get modified crystal whiskers；According to parts by weight, by 30 parts of cement, 30 parts of heavy calcium carbonates, 20 parts of silica flours, 10
Part modified crystal whiskers, 5 parts of silane coupling agents, 5 parts of water-reducing agents and 50 parts of acrylic emulsions are placed in batch mixer, in revolving speed be 200r/
Under the conditions of min, 60min is stirred to get polymer cement waterproof paint.The cement is portland cement.The quartz
The fineness of powder is 1.2.The silane coupling agent is silane resin acceptor kh-550.The water-reducing agent is sodium lignin sulfonate.It is described
Acrylic emulsion solid content is 60%.The low-melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth
Account for 51%(ω), tin accounts for 30%(ω), lead accounts for 8%(ω), indium accounts for 11%(ω).
According to parts by weight, by 10 parts of flyash, 10 parts of aluminium hydroxides, 40 parts of water are placed in ball milling mixing in ball mill
50min obtains No. 1 mixed liquor；According to parts by weight, by 30 parts of acrylonitrile, 20 portions of linseed oil, 8 parts of azodiisobutyronitriles, 8 parts
Pentane, 8 parts of methyl methacrylates are placed in No. 1 beaker, and No. 1 beaker is placed in ultrasonic disperse instrument, in supersonic frequency
Under the conditions of 75kHz, ultrasound 50min is mixed, No. 2 mixed liquors are obtained；No. 2 mixed liquors and No. 1 mixed liquor 1:10 in mass ratio are set
In shearing homogenizer, under the conditions of temperature is 5 DEG C, low-temperature and high-speed shears 10min, obtains homogeneous mixed liquor, then mixes homogeneous
It closes liquid to be placed in autoclave, and nitrogen is filled with into reaction kettle with 90mL/min rate, in pressure 1.2MPa, temperature 80
DEG C, after nitrogen charging heat-insulation pressure keeping reacts 50min, reaction under high pressure temperature in the kettle is cooled to room temperature, opens valve pressure release, discharging obtains
Mixed serum, then mixed serum is filtered, filter cake is obtained, Washing of Filter Cake 8 is then obtained into modified filler with deionized water；By weight
Number meter, by 30 parts of cement, 30 parts of heavy calcium carbonates, 20 parts of silica flours, 20 parts of modified fillers, 5 parts of silane coupling agents, 5 parts
Water-reducing agent and 50 parts of acrylic emulsions are placed in batch mixer, in revolving speed be 200r/min under the conditions of, be stirred 60min to get
Polymer cement waterproof paint.The cement is portland cement.The fineness of the silica flour is 1.2.The silane coupling agent
For silane resin acceptor kh-550.The water-reducing agent is sodium lignin sulfonate.The acrylic emulsion solid content is 60%.It is described low
Melting alloy is bismuth tin alloy, each component mass content in bismuth tin alloy are as follows: bismuth accounts for 51%(ω), tin accounts for 30%(ω), lead accounts for 8%
(ω), indium account for 11%(ω).
Comparative example: the polymer cement waterproof paint of Foshan material production Co., Ltd production.
Example 1 to the resulting polymer cement waterproof paint of example 5 and comparative example product are subjected to performance detection, it is specific to examine
Survey method is as follows:
Test specimen is cut into 80mm × 40mm size respectively, is weighed as M1, then is immersed in 25 DEG C of deionized water, is used after impregnating 168h
Filter paper blots surface moisture and is re-weighed as M2.
The calculating formula of water absorption rate WA: WA=(M2-M1)/M1100%.
Mechanics Performance Testing is carried out according to GB/T16777.
Specific testing result is as shown in table 1:
The specific testing result of 1 polymer cement waterproof paint of table
| Detection project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Comparative example |
| Water absorption rate/% | 6.1 | 9.4 | 12.5 | 9.9 | 11.8 | 16.2 |
| Tensile strength/MPa | 1.8 | 1.1 | 1.5 | 1.2 | 1.1 | 0.7 |
| Elongation at break/% | 1700 | 1100 | 1500 | 1300 | 1200 | 600 |
By 1 testing result of table it is found that the polymer cement waterproof paint of technical solution of the present invention preparation has excellent waterproofness
It the characteristics of energy and mechanical property, has broad prospects in the development of building material technology industry.
Claims (8)
1. a kind of polymer cement waterproof paint, it is characterised in that: be made of the raw material of following parts by weight:
20~30 parts of cement
20~30 parts of heavy calcium carbonate
10~20 parts of silica flour
10~20 parts of modified filler
8~10 parts of modified crystal whiskers
3~5 parts of silane coupling agent
3~5 parts of water-reducing agent
40~50 parts of acrylic emulsion
The process for preparation of the polymer cement waterproof paint are as follows: each raw material is weighed by raw material composition, by cement, powdered whiting
Powder, silica flour, modified filler, modified crystal whiskers, silane coupling agent, water-reducing agent and acrylic emulsion are stirred to get polymer
Cement waterproof paint.
2. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the cement is silicate cement
Any one in mud, aluminate cement or sulfate cement.
3. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the fineness of the silica flour is
1.6~1.2.
4. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the preparation of the modified filler
Journey are as follows: according to parts by weight, by 8~10 parts of flyash, 8~10 parts of aluminium hydroxides, 30~40 parts of water for ball milling mixing obtain No. 1 and mix
Close liquid；According to parts by weight, by 20~30 parts of acrylonitrile, 10~20 portions of linseed oil, 5~8 parts of azodiisobutyronitriles, 5~8 parts
Pentane, 5~8 parts of methyl methacrylate mixing ultrasounds, obtains No. 2 mixed liquors；No. 2 mixed liquors and No. 1 mixed liquor are pressed into quality
It is sheared than 1:5~1:10 low-temperature and high-speed, the reaction of nitrogen charging high pressure heat-preserving, cooling, pressure release discharges, filters, and washing obtains modified filler.
5. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the preparation of the modified crystal whiskers
Journey are as follows: by silicon carbide whisker ball milling, cross the sieve of 120 mesh, obtain refinement whisker, will refinement whisker and hydrofluoric acid 1:10 in mass ratio~
1:20 mixed processing filters, and washing obtains pretreatment whisker, according to parts by weight, by 20~30 parts of pretreatment whiskers, 10~20
Part low-melting alloy, 30~40 parts of paraffin mixing and ball millings are to get modified crystal whiskers.
6. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the silane coupling agent is silane
Any one in coupling agent KH-550, silane resin acceptor kh-550 or Silane coupling reagent KH-570.
7. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the water-reducing agent is sulfomethylated lignin
Any one in sour sodium, TH-928 poly carboxylic acid series water reducer or YZ-1 naphthalene series high-efficiency water-reducing agent.
8. a kind of polymer cement waterproof paint according to claim 1, it is characterised in that: the acrylic emulsion solid content
It is 50~60%.
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| CN201811134569.1A CN109053053A (en) | 2018-09-28 | 2018-09-28 | A kind of polymer cement waterproof paint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112456906A (en) * | 2020-12-01 | 2021-03-09 | 浙江工业大学 | Application of silicon carbide whiskers in preparation of wear-resistant toughened anti-crack cement-based material |
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