Summary of the invention
Main purpose of the present invention is to provide a kind of self-crosslinking bi-component water-proof slurry and preparation method thereof, its deficiency existed for prior art is improved, by linking agent and waterproof agent, realize the crosslinked combination of inorganic component and organic constituent, thus effectively increase viscosifying power and the waterproof ability of material.
For reaching above object, the technical solution used in the present invention is: a kind of self-crosslinking bi-component water-proof slurry is made up of liquid material and solid material, and wherein, each raw material of described liquid material according to weight percent is:
Polyacrylate dispersion 70 ~ 75%,
Vinylidene chloride-propionate emulsion 8 ~ 12%,
Linking agent 2.0 ~ 3.0%,
Defoamer 0.8 ~ 1.2%,
Waterproof agent 1.0 ~ 1.5%,
Water reducer 1.0 ~ 1.2%,
Water 12 ~ 15%, wherein, linking agent is poly-diallyl alkyl dimethyl ammonium chloride, and waterproof agent is methyl etradecyldimethylamine TMOS;
Each raw material of described solid material according to weight percent is:
Cement 45 ~ 55%,
High-calcium fly ass 15 ~ 25%,
Talcum powder 10 ~ 15%,
Gypsum 10 ~ 15%,
Polymer glue powder 3.5 ~ 4.0%,
Dispersion agent 1.0 ~ 1.5%, wherein, dispersion agent is methacrylic acid calcium.
Preferably, the mass ratio of liquid material and solid material is 2: 3.
Preferably, defoamer is two (trifluoromethyl) phenyl silicone oil of 3,5-.
Preferably, water reducer is tri-isopropanolamine.
Preferably, the polymer glue powder in solid material is ethylene-stryene-vinyl laurate polymer glue powder.
Preferably, the cement in solid material is 42.5 silicate cements and 42.5R Portland blast furnace slag cement mixture, and wherein, the mass ratio of 42.5 silicate cements and 42.5R Portland blast furnace slag cement is 1: 1.
A preparation method for self-crosslinking bi-component water-proof slurry, it comprises step:
Prepare liquid material, water is placed in reactor, under agitation add polyacrylate dispersion and vinylidene chloride-propionate emulsion, stir 10 minutes, add the linking agent of respective quality part, defoamer and water reducer, stir 30 minutes, add waterproof agent, the liquid material of the obtained component A that stirs;
Preparation solid material, adds airtight high-speed mixer premix evenly by the cement of respective quality part, flyash, talcum powder, gypsum and polymer glue powder, add the solid material that dispersion agent high-speed stirring evenly obtains B component;
By liquid material and solid material according to mass ratio 2: 3 with the use of, obtained self-crosslinking bi-component water-proof slurry.
Compared with prior art, beneficial effect of the present invention is: 1, described self-crosslinking bi-component water-proof slurry, be the linking agent of slurry by poly-diallyl alkyl dimethyl ammonium chloride, the two-pack generation self-crosslinking of inoganic solids material and organic liquid material in slurry can be made, considerably increase the cohesive strength of slurry and matrix; 2, by adding dispersion agent methacrylic acid calcium, making the water effect polymerization reaction take place in the inorganicss such as the cement in solid material and liquid material, forming elastomeric polymer gel, thus effectively increase the impervious waterproof ability of slurry.
Embodiment
Below describe and realize the present invention for disclosing the present invention to enable those skilled in the art.Preferred embodiment in below describing only as an example, it may occur to persons skilled in the art that other apparent modification.
A kind of self-crosslinking bi-component water-proof slurry of the present invention is made up of the liquid material of component A and the solid material of B component, and wherein, each raw material of described liquid material according to weight percent is:
Polyacrylate dispersion 70 ~ 75%,
Vinylidene chloride-propionate emulsion 8 ~ 12%,
Linking agent 2.0 ~ 3.0%,
Defoamer 0.8 ~ 1.2%,
Waterproof agent 1.0 ~ 1.5%,
Water reducer 1.0 ~ 1.2%,
Water 12 ~ 15%, wherein, linking agent is poly-diallyl alkyl dimethyl ammonium chloride, and waterproof agent is methyl etradecyldimethylamine TMOS;
Each raw material of described solid material according to weight percent is:
Cement 45 ~ 55%,
High-calcium fly ass 15 ~ 25%,
Talcum powder 10 ~ 15%,
Gypsum 10 ~ 15%,
Polymer glue powder 3.5 ~ 4.0%,
Dispersion agent 1.0 ~ 1.5%, wherein, dispersion agent is methacrylic acid calcium.
Wherein, by selecting poly-diallyl alkyl dimethyl ammonium chloride to be the linking agent of slurry, the two-pack generation self-crosslinking of inoganic solids material and organic liquid material in slurry can be made, considerably increase the cohesive strength of slurry and matrix.
Wherein, by adding dispersion agent methacrylic acid calcium, making the water effect polymerization reaction take place in the inorganicss such as the cement in solid material and liquid material, forming elastomeric polymer gel, thus effectively increase the impervious waterproof ability of slurry.
Preferably, the mass ratio of component A liquid material and B component solid material is 2: 3.
Preferably, defoamer is two (trifluoromethyl) phenyl silicone oil of 3,5-.
Preferably, water reducer is tri-isopropanolamine.
Preferably, the polymer glue powder in solid material is ethylene-stryene-vinyl laurate polymer glue powder.
Preferably, the cement in solid material is 42.5 silicate cements and 42.5R Portland blast furnace slag cement mixture, and wherein, the mass ratio of 42.5 silicate cements and 42.5R Portland blast furnace slag cement is 1: 1.
A preparation method for self-crosslinking bi-component water-proof slurry, it comprises step:
Prepare liquid material, water is placed in reactor, under agitation add polyacrylate dispersion and vinylidene chloride-propionate emulsion, stir 10 minutes, add the linking agent of respective quality part, defoamer and water reducer, stir 30 minutes, add waterproof agent, the liquid material of the obtained component A that stirs;
Preparation solid material, adds airtight high-speed mixer premix evenly by the cement of respective quality part, flyash, talcum powder, gypsum and polymer glue powder, add the solid material that dispersion agent high-speed stirring evenly obtains B component;
By liquid material and solid material according to mass ratio 2: 3 with the use of, obtained self-crosslinking bi-component water-proof slurry.
Embodiment 1
A kind of self-crosslinking bi-component water-proof slurry of the present embodiment comprises component A liquid material and B component solid material, by percentage to the quality, described component A system comprises 70% polyacrylate dispersion, 12% vinylidene chloride-propionate emulsion, 2.0% linking agent, 0.8% defoamer, 1.2% waterproof agent, 1.0% water reducer, 13% water; Described B component system comprises 45% cement, 25% high-calcium fly ass, 10% talcum powder, 15% gypsum, 3.5% polymer glue powder, 1.5% dispersion agent.
The preparation method of described self-crosslinking bi-component water-proof slurry comprises:
(1) first component A system is prepared: take certain water in reactor by above-mentioned mass ratio, under agitation add polyacrylate dispersion and vinylidene chloride-propionate emulsion, stir and add linking agent, defoamer and water reducer again after 10 minutes, then stir after 30 minutes and add waterproof agent again, finally stir obtained component A; (2) prepare B component system: take cement, flyash, talcum powder according to above-mentioned mass ratio, that gypsum, polymer glue powder add airtight high-speed mixer premix is even, it is even to add dispersion agent high-speed stirring after completing, and obtains B component; (3) finally by component A and B component according to mass ratio 2: 3 with the use of, obtain a kind of self-cross linking type two-component polymer cement water-proof slurry.
Embodiment 2
A kind of self-crosslinking bi-component water-proof slurry of the present embodiment comprises component A liquid material and B component solid material, by percentage to the quality, described component A system comprises 72% polyacrylate dispersion, 10% vinylidene chloride-propionate emulsion, 2.5% linking agent, 1.0% defoamer, 1.3% waterproof agent, 1.2% water reducer, 12% water; Described B component system comprises 48% cement, 22% high-calcium fly ass, 12% talcum powder, 13% gypsum, 3.6% polymer glue powder, 1.4% dispersion agent.
The preparation method of described self-crosslinking bi-component water-proof slurry comprises:
(1) first component A system is prepared: take certain water in reactor by above-mentioned mass ratio, under agitation add polyacrylate dispersion and vinylidene chloride-propionate emulsion, stir and add linking agent, defoamer and water reducer again after 10 minutes, then stir after 30 minutes and add waterproof agent again, finally stir obtained component A; (2) prepare B component system: take cement, flyash, talcum powder according to above-mentioned mass ratio, that gypsum, polymer glue powder add airtight high-speed mixer premix is even, it is even to add dispersion agent high-speed stirring after completing, and obtains B component; (3) finally by component A and B component according to mass ratio 2: 3 with the use of, obtain a kind of self-cross linking type two-component polymer cement water-proof slurry.
Embodiment 3
A kind of self-crosslinking bi-component water-proof slurry of the present embodiment comprises component A liquid material and B component solid material, by percentage to the quality, described component A system comprises 73% polyacrylate dispersion, 9% vinylidene chloride-propionate emulsion, 2.0% linking agent, 0.9% defoamer, 1.1% waterproof agent, 1.0% water reducer, 13% water; Described B component system comprises 52% cement, 18% high-calcium fly ass, 14% talcum powder, 11% gypsum, 3.8% polymer glue powder, 1.2% dispersion agent.
The preparation method of described self-crosslinking bi-component water-proof slurry comprises:
(1) first component A system is prepared: take certain water in reactor by above-mentioned mass ratio, under agitation add polyacrylate dispersion and vinylidene chloride-propionate emulsion, stir and add linking agent, defoamer and water reducer again after 10 minutes, then stir after 30 minutes and add waterproof agent again, finally stir obtained component A; (2) prepare B component system: take cement, flyash, talcum powder according to above-mentioned mass ratio, that gypsum, polymer glue powder add airtight high-speed mixer premix is even, it is even to add dispersion agent high-speed stirring after completing, and obtains B component; (3) finally by component A and B component according to mass ratio 2: 3 with the use of, obtain a kind of self-cross linking type two-component polymer cement water-proof slurry.
Embodiment 4
A kind of self-cross linking type two-component polymer cement water-proof slurry of the present embodiment comprises component A liquid material and B component solid material, by percentage to the quality, described component A system comprises 74% polyacrylate dispersion, 8% vinylidene chloride-propionate emulsion, 2.5% linking agent, 1.0% defoamer, 1.3% waterproof agent, 1.2% water reducer, 12% water; Described B component system comprises 55% cement, 15% high-calcium fly ass, 15% talcum powder, 10% gypsum, 4.0% polymer glue powder, 1.0% dispersion agent.
The preparation method of described self-crosslinking bi-component water-proof slurry comprises:
(1) first component A system is prepared: take certain water in reactor by above-mentioned mass ratio, under agitation add polyacrylate dispersion and vinylidene chloride-propionate emulsion, stir and add linking agent, defoamer and water reducer again after 10 minutes, then stir after 30 minutes and add waterproof agent again, finally stir obtained component A; (2) prepare B component system: take cement, flyash, talcum powder according to above-mentioned mass ratio, that gypsum, polymer glue powder add airtight high-speed mixer premix is even, it is even to add dispersion agent high-speed stirring after completing, and obtains B component; (3) finally by component A and B component according to mass ratio 2: 3 with the use of, obtain a kind of self-cross linking type two-component polymer cement water-proof slurry.
The leading indicator of a kind of self-crosslinking bi-component water-proof slurry of the present invention detects according to JC/T2090-2011 standard, and its test result is as shown in table 1.As seen from table, the main performance index of the polymer cement waterproof slurry of each embodiment gained all meets national standard requirement.
The main performance index of table 1, each embodiment self-crosslinking bi-component water-proof slurry
Sequence number |
Test event |
Unit |
Embodiment 1 |
Embodiment 2 |
Embodiment 3 |
Embodiment 4 |
1 |
Surface drying time |
h |
3.2 |
3.4 |
3.2 |
3.5 |
2 |
Impermeability pressure |
MPa |
1.8 |
1.7 |
1.6 |
1.9 |
3 |
Cohesive strength |
MPa |
0.8 |
1.0 |
0.9 |
1.1 |
4 |
Alkali resistance |
- |
Without peeling off |
Without peeling off |
Without peeling off |
Without peeling off |
5 |
Bending property |
- |
Flawless |
Flawless |
Flawless |
Flawless |
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and specification sheets; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.