A kind of exterior wall putty
Technical field
The invention belongs to building material field, relate to a kind of exterior wall putty.
Background technology
Current exterior wall putty has varied, is mainly used in cement wall surface, mixed earth metope, and intensity is not etc.When exterior wall putty carries out renewal and reform to some ceramic tile metopes, mosaic wall surface, there is the defects such as sticking power is not strong, water tolerance is poor in putty; Also there is fire-protection rating low simultaneously, for external wall structure dependency, large and aesthetics is restricted, and realizing fp while, cannot focus on other important indicators such as insulation, waterproof, intensity, rate of moisture absorption, more cannot take into account that working life is long, resource consumption is few, environmental pollution is light, the problems such as lightweight.
CN101544856B(2012-9-26) disclose a kind of exterior wall putty, but its tack, fillibility, waterproof, intensity, rate of moisture absorption, prevent the performances such as body of wall variable color comes off from still having much room for improvement.
Summary of the invention
The object of this invention is to provide a kind of exterior wall putty, there is excellent tack, fillibility, waterproof, intensity, rate of moisture absorption, prevent body of wall variable color to come off performance.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs:
A kind of exterior wall putty, the alumina sol that it comprises polymer powder 10-15 part by weight, lightweight clay brick 30-50 part, perlite 10-15 part, high-alumina cement 6-9 part, mullite 12-18 part, wilkinite 10-15 part, szaibelyite 2-4 part, dextrine powder 1-3 part, methylcellulose gum 3-5 part, silicon powder 5-8 part, flaxen fiber or viscose fiber 5-10 part, water glass 8-18 part, polymer dispersion powder 4-6 part, in mass ratio 1:1 are combined into and silicon dioxide gel composite suspension liquid 10-15 part;
Described polymer powder is modified polyethylene and polypropylene miser; Concrete modification is be the ultrahigh molecular weight polyethylene(UHMWPE) of 400-700 ten thousand and 15-25 part molecular weight toward 30-60 part molecular weight is by weight add aluminium dihydrogen phosphate 4-9 part, C in the base-material of the high density poly propylene composition of 100-140 ten thousand
12h
25sO
3na0.5-4 part, terpolymer EP rubber EPDM3-4 part, aluminate coupling agent 6-8 part and phosphorous acid ester 2-3 part, mediate 40-50min in Banbury mixer at 110-120 DEG C.
The polymer powder that the present invention combines by specific proportioning and lightweight clay brick, perlite, high-alumina cement and composite suspension liquid do filmogen, adopt water glass, wilkinite, szaibelyite and dextrine powder make dispersion agent and properties-correcting agent, filmogen and dispersion agent and properties-correcting agent is made to form hydrophobic systems and slight crosslinking reaction occurs, mullite, methylcellulose gum, flaxen fiber or viscose fiber further increase again sticking power function and the intensity of putty, especially the polyethylene of particular modification and polypropylene miser can increase the fillibility of putty, waterproof and intensity, prevent body of wall variable color from coming off.
As preferably, described exterior wall putty also comprises isothiazolinone 3-6 part, wax emulsion 0.5-2 part, Zinic stearas 2-4 part.
The isothiazolinone of proportioning of the present invention, wax emulsion and Zinic stearas can increase tack and the fillibility of putty further.
As preferably, described exterior wall putty also comprises J-5 terra alba 1-3 part, poly carboxylic acid amine salt 5-8 part.
Terra alba of the present invention and poly carboxylic acid amine salt can increase the water-repellancy of putty, intensity and rate of moisture absorption further.
As preferably, described exterior wall putty also comprises sizing material 4-7 part, and described sizing material is made up of the raw material of following parts by weight:
Phthalic anhydride 25-35 part, triethylene glycol 10-12 part, pentanedioic acid 15-18 part, trihydroxybutane 8-10 part, zinc white 5-7 part, magnesium oxide 3-5 part, chloroprene rubber 15-25 part, elastic plastic 70-95 part, softening oil 2-3 part, methylcarbonate 15-20 part, ethylbenzene 20-30 part, fire retardant 1-3 part.
Sizing material of the present invention, while the imparting larger sticking power of putty and intensity, can prevent body of wall variable color from coming off, and increases body of wall fire-protection rating.
As preferably, described fire retardant is counted composed of the following components by weight: ammonium low polyphosphate 20 ~ 50 parts, 10 ~ 25 parts, ammonium phosphate, ammonium pyrophosphate 6 ~ 12 parts, 5 ~ 20 parts, ammonium sulfate, boric acid 5 ~ 10 parts, 10 ~ 25 parts, water.
The flame retardant properties of fire retardant of the present invention is good, and fire-protection rating is high, Environmental Safety.
As preferably, the alumina content in described lightweight clay brick is 35%-45%.
As preferably, the dioxide-containing silica in described perlite is 55-65%.
As preferably, the alumina content in described high-alumina cement is 40-50%.
As preferably, described mullite is M45 mullite.
As preferably, the granularity of described lightweight clay brick, perlite, high-alumina cement and/or M45 mullite is 0.4-0.8mm.
The lightweight clay brick of granularity of the present invention, perlite, high-alumina cement and/or M45 mullite can ensure sticking power and the intensity of putty, if granularity is too little, then intensity is difficult to meet the demands; If granularity is too large, then sticking power is inadequate; Adopt the lightweight clay brick of 0.4-0.8mm, perlite, high-alumina cement and/or M45 mullite that the sticking power of putty and intensity can be made to reach best of breed.
In sum, the present invention has following beneficial effect:
1. exterior wall putty of the present invention has excellent tack, fillibility, waterproof, intensity, rate of moisture absorption, prevents body of wall variable color to come off performance;
2. exterior wall putty of the present invention is suitable for mosaic, ceramic tile, marble, grouan, the surface of wall of brick, energy filling cracks aperture, product has strong adhesion after doing something in disregard of obstacles, water tolerance and resistance to abrasion good, top layer is smooth, anticracking, good crashworthiness feature, putty of the present invention after testing, in cohesive strength, standard state is issued to 1.0MPa, after freeze-thaw cycle 5 times, the cohesive strength of putty reaches 1.23MPa, cohesive strength under the state that is above standard, embody the performance that there is good weathering resistance Yu overcome external stress, external wall reconstruction renovation can be widely used in, use for coating provides soft and smooth bottom surface base material.
Embodiment
Exterior wall putty formula one: comprise polymer powder 10 by weight, alumina sol that part, lightweight clay brick 30, part, perlite 10, part, high-alumina cement 6, part, mullite 12, part, wilkinite 10, part, szaibelyite 2, part, dextrine powder 1, part, methylcellulose gum 3, part, silicon powder 5 parts, viscose fiber 5 parts, water glass 8 parts, polymer dispersion powder 4 parts, in mass ratio 1:1 are combined into and silicon dioxide gel composite suspension liquid 15 parts; Isothiazolinone 6 parts, wax emulsion 2 parts, Zinic stearas 4 parts; Sizing material 7 parts.
Wherein, the alumina content in lightweight clay brick is 35%;
Dioxide-containing silica in perlite is 55%;
Alumina content in high-alumina cement is 40%;
Mullite is M45 mullite;
The granularity of lightweight clay brick, perlite, high-alumina cement and/or M45 mullite is 0.4mm.
Exterior wall putty formula two: comprise polymer powder 15 parts by weight, alumina sol that lightweight clay brick 50 parts, perlite 15 parts, high-alumina cement 9 parts, mullite 18 parts, wilkinite 15 parts, szaibelyite 4 parts, dextrine powder 3 parts, methylcellulose gum 5 parts, silicon powder 8 parts, 10 parts, flaxen fiber, water glass 18 parts, polymer dispersion powder 6 parts, in mass ratio 1:1 are combined into and silicon dioxide gel composite suspension liquid 10 parts; J-5 terra alba 1 part, 5 parts, poly carboxylic acid amine salt; Sizing material 4 parts.
Wherein, the alumina content in lightweight clay brick is 45%;
Dioxide-containing silica in perlite is 65%;
Alumina content in high-alumina cement is 50%;
Mullite is M45 mullite;
The granularity of lightweight clay brick, perlite, high-alumina cement and/or M45 mullite is 0.8mm.
Exterior wall putty formula three: comprise polymer powder 12 parts by weight, alumina sol that lightweight clay brick 38 parts, perlite 12 parts, high-alumina cement 7 parts, mullite 15 parts, wilkinite 13 parts, szaibelyite 3 parts, dextrine powder 2 parts, methylcellulose gum 4 parts, silicon powder 7 parts, 8 parts, flaxen fiber, water glass 12 parts, polymer dispersion powder 5 parts, in mass ratio 1:1 are combined into and silicon dioxide gel composite suspension liquid 12 parts; Isothiazolinone 5 parts, wax emulsion 1.5 parts, Zinic stearas 3 parts; J-5 terra alba 2 parts, 7 parts, poly carboxylic acid amine salt; Sizing material 6 parts.
Wherein, the alumina content in lightweight clay brick is 40%;
Dioxide-containing silica in perlite is 60%;
Alumina content in high-alumina cement is 45%;
Mullite is M45 mullite;
The granularity of lightweight clay brick, perlite, high-alumina cement and/or M45 mullite is 0.5mm.
Embodiment one
Exterior wall putty is filled a prescription by formula one, and wherein polymer powder is modified polyethylene and polypropylene miser; Concrete modification is be the ultrahigh molecular weight polyethylene(UHMWPE) of 400-700 ten thousand and 15 parts of molecular weight toward 30 parts of molecular weight is by weight add aluminium dihydrogen phosphate 4 parts, C in the base-material of the high density poly propylene composition of 100-140 ten thousand
12h
25sO
3na0.5 part, terpolymer EP rubber EPDM3 part, aluminate coupling agent 6 parts and phosphorous acid ester 3 parts, mediate 40min in Banbury mixer at 110 DEG C.
Sizing compound formula is:
Phthalic anhydride 25 parts, triethylene glycol 10 parts, pentanedioic acid 15 parts, trihydroxybutane 8 parts, zinc white 5 parts, 3 parts, magnesium oxide, chloroprene rubber 15 parts, elastic plastic 70 parts, softening oil 2 parts, methylcarbonate 15 parts, 30 parts, ethylbenzene, fire retardant 3 parts.
Fire retardant is counted composed of the following components by weight: ammonium low polyphosphate 50 parts, 25 parts, ammonium phosphate, ammonium pyrophosphate 12 parts, 20 parts, ammonium sulfate, boric acid 10 parts, 10 parts, water.
Embodiment two
Polymer powder proportioning composition, sizing compound formula and flame retardant formulations, with embodiment one, are filled a prescription by formula two unlike exterior wall putty.
Embodiment three
Polymer powder proportioning composition, sizing compound formula and flame retardant formulations, with embodiment one, are filled a prescription by formula three unlike exterior wall putty.
Embodiment four
Fill a prescription by formula one according to exterior wall putty, wherein polymer powder is modified polyethylene and polypropylene miser; Concrete modification is be the ultrahigh molecular weight polyethylene(UHMWPE) of 400-700 ten thousand and 25 parts of molecular weight toward 60 parts of molecular weight is by weight add aluminium dihydrogen phosphate 9 parts, C in the base-material of the high density poly propylene composition of 100-140 ten thousand
12h
25sO
3na4 part, terpolymer EP rubber EPDM4 part, aluminate coupling agent 8 parts and phosphorous acid ester 2 parts, mediate 50min in Banbury mixer at 120 DEG C.
Sizing compound formula is:
Phthalic anhydride 35 parts, triethylene glycol 12 parts, pentanedioic acid 18 parts, trihydroxybutane 10 parts, zinc white 7 parts, 5 parts, magnesium oxide, chloroprene rubber 25 parts, elastic plastic 95 parts, softening oil 3 parts, methylcarbonate 20 parts, 20 parts, ethylbenzene, fire retardant 1 part.
Fire retardant is counted composed of the following components by weight: ammonium low polyphosphate 20 parts, 10 parts, ammonium phosphate, ammonium pyrophosphate 6 parts, 5 parts, ammonium sulfate, boric acid 5 parts, 25 parts, water.
Embodiment five
Polymer powder proportioning composition, sizing compound formula and flame retardant formulations, with embodiment four, are filled a prescription by formula two unlike exterior wall putty.
Embodiment six
Polymer powder proportioning composition, sizing compound formula and flame retardant formulations, with embodiment four, are filled a prescription by formula three unlike exterior wall putty.
Embodiment seven
Fill a prescription by formula one according to exterior wall putty, wherein polymer powder is modified polyethylene and polypropylene miser; Concrete modification is be the ultrahigh molecular weight polyethylene(UHMWPE) of 400-700 ten thousand and 20 parts of molecular weight toward 50 parts of molecular weight is by weight add aluminium dihydrogen phosphate 5 parts, C in the base-material of the high density poly propylene composition of 100-140 ten thousand
12h
25sO
3na3 part, terpolymer EP rubber EPDM3.5 part, aluminate coupling agent 7 parts and phosphorous acid ester 2.5 parts, mediate 45min in Banbury mixer at 115 DEG C.
Sizing compound formula is:
Phthalic anhydride 28 parts, triethylene glycol 11 parts, pentanedioic acid 16 parts, trihydroxybutane 9 parts, zinc white 6 parts, 4 parts, magnesium oxide, chloroprene rubber 19 parts, elastic plastic 85 parts, softening oil 2.5 parts, methylcarbonate 18 parts, 25 parts, ethylbenzene, fire retardant 2 parts.
Fire retardant is counted composed of the following components by weight: ammonium low polyphosphate 30 parts, 15 parts, ammonium phosphate, ammonium pyrophosphate 9 parts, 15 parts, ammonium sulfate, boric acid 8 parts, 18 parts, water.
Embodiment eight
Polymer powder proportioning composition, sizing compound formula and flame retardant formulations, with embodiment seven, are filled a prescription by formula two unlike exterior wall putty.
Embodiment nine
Polymer powder proportioning composition, sizing compound formula and flame retardant formulations, with embodiment seven, are filled a prescription by formula three unlike exterior wall putty.
Comparative example one
With embodiment one, unlike wherein not including polymer powder and water glass.
Comparative example two
With embodiment four, comprise polymer powder 15 parts, lightweight clay brick 20 parts, perlite 5 parts, high-alumina cement 15 parts, mullite 8 parts, wilkinite 8 parts, szaibelyite 1 part, dextrine powder 4 parts, methylcellulose gum 2 parts, silicon powder 9 parts, flaxen fiber or viscose fiber 2 parts, water glass 6 parts, polymer dispersion powder 8 parts by weight unlike exterior wall putty.
Comparative example three
0.3 kilogram, mixture, 40 kilograms, coarse whiting 200 order, 35 kilograms, talcum powder 400 order of soft water 13 kilograms, dry gram of methylcellulose gum 0.3, lithium minerals thickening material 0.2 kilogram, 0.5 kilogram, poly carboxylic acid amine salt, silicon third latex 15 kilograms, wax emulsion 0.5 kilogram, 2-amido-2-methyl isophthalic acid-propyl alcohol 0.2 kilogram, ethylene glycol 1 kilogram, 12 carbon ester alcohol 0.7 kilogram, Zinc Stearate 5 kilograms, organosilicon and mineral oil.
Putty sticking power is tested, and first uses sharp cutter (knife edge angle is 15 °-30 °) to draw 10 × 10 1mm × 1mm small grid in exterior wall sample surface, and each line should deeply and the bottom of putty; Clean down with the fragment of hairbrush by test zone; Use adhesive power 350g/cm
2-400g/m
2adhesive tape (3M600 gummed paper or equivalent) firmly withered live tested small grid; and to exert oneself wiping adhesive tape with eraser; to strengthen contact area and the dynamics in adhesive tape and tested region; adhesive tape one end is caught with hand; (90 °) shut down gummed paper rapidly in the vertical direction, and same position carries out 2 identical test;
Sticking power test grade classification:
5B-comes off without exterior wall,
The 4B-exterior wall total area that comes off is less than 5%;
3B-exterior wall comes off the total area between 5%-15%;
2B-exterior wall comes off the total area between 15%-35%;
1B-exterior wall comes off the total area between 35%-65%,
The 0B-exterior wall total area that comes off is greater than 65%.
Be qualified during requirement sticking power >=4B.
The product performance of table 1 embodiment and comparative example compare
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this specification sheets, as long as but be all subject to the protection of patent law in right of the present invention.