CN114806258A - High-strength light bottom leveling putty powder using polyphenyl particles - Google Patents
High-strength light bottom leveling putty powder using polyphenyl particles Download PDFInfo
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- CN114806258A CN114806258A CN202210631522.6A CN202210631522A CN114806258A CN 114806258 A CN114806258 A CN 114806258A CN 202210631522 A CN202210631522 A CN 202210631522A CN 114806258 A CN114806258 A CN 114806258A
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- 239000000843 powder Substances 0.000 title claims abstract description 93
- 239000002245 particle Substances 0.000 title claims abstract description 47
- 229920006389 polyphenyl polymer Polymers 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229920001971 elastomer Polymers 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 239000005871 repellent Substances 0.000 claims abstract description 18
- 230000002940 repellent Effects 0.000 claims abstract description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 229920003086 cellulose ether Polymers 0.000 claims abstract description 12
- 239000011398 Portland cement Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000004576 sand Substances 0.000 claims description 14
- 239000004575 stone Substances 0.000 claims description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 7
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 7
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 7
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- -1 polyphenylene Polymers 0.000 claims description 5
- 239000006004 Quartz sand Substances 0.000 claims description 4
- 238000005187 foaming Methods 0.000 claims description 4
- 241000276489 Merlangius merlangus Species 0.000 claims description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims description 2
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- 229920000265 Polyparaphenylene Polymers 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920006248 expandable polystyrene Polymers 0.000 claims description 2
- YLGXILFCIXHCMC-JHGZEJCSSA-N methyl cellulose Chemical compound COC1C(OC)C(OC)C(COC)O[C@H]1O[C@H]1C(OC)C(OC)C(OC)OC1COC YLGXILFCIXHCMC-JHGZEJCSSA-N 0.000 claims description 2
- LNCDZGSESVBWGF-UHFFFAOYSA-N octadecanoic acid;hydrate Chemical compound O.CCCCCCCCCCCCCCCCCC(O)=O LNCDZGSESVBWGF-UHFFFAOYSA-N 0.000 claims description 2
- 150000001282 organosilanes Chemical class 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 239000012508 resin bead Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 229910052602 gypsum Inorganic materials 0.000 description 16
- 239000010440 gypsum Substances 0.000 description 16
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 9
- 239000011575 calcium Substances 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 9
- 239000004568 cement Substances 0.000 description 8
- 239000010410 layer Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 239000003469 silicate cement Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- GVXIVWJIJSNCJO-UHFFFAOYSA-L aluminum;calcium;sulfate Chemical compound [Al+3].[Ca+2].[O-]S([O-])(=O)=O GVXIVWJIJSNCJO-UHFFFAOYSA-L 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/34—Filling pastes
Abstract
The invention discloses bottom leveling putty powder using polyphenyl particles as light filler, which is prepared from the following components in parts by weight: 200-300 parts of Portland cement, 450-650 parts of graded gravel, 2-10 parts of cellulose ether, 15-50 parts of rubber powder, 3-20 parts of polyphenyl particles, 150-250 parts of heavy calcium carbonate powder, 1-5 parts of a water repellent and 1-5 parts of fibers, wherein the total mass part is 1000 parts. The product of the invention has higher strength and water resistance, higher coating rate, simple construction process, good construction operability and reduced labor cost, and the single construction thickness can reach 10 mm; the compressive strength is fully improved, and higher safety is provided for the system.
Description
Technical Field
The invention belongs to the technical field of filling materials, and particularly relates to high-strength lightweight bottom leveling putty powder using polyphenyl particles.
Background
Putty (filling mud) is a thick slurry material with decorative property for leveling wall surface, and is an essential product before painting. Is applied on the primer or directly applied on the object to remove the defects of high and low unevenness on the surface of the object to be coated. The bottom layer leveling putty is a novel interface treating agent, is mainly used for leveling rough and uneven cement mortar base planes or concrete base planes, and the leveling thickness is 3-10 mm usually, so that a good base plane is provided for the surface layer putty, the using amount of the surface layer putty is reduced, and the engineering cost is reduced.
In general, bottom leveling putties need to have the following properties: (1) the adhesive force is higher, so that better anchoring force is provided for a base surface, and the adhesive can be well attached to the base surface; (2) the base layer has certain toughness, and can well buffer the effect of different stretching stress generated by different base layers; (3) good aging resistance and impermeability, water resistance and moisture resistance, and wide applicability; (4) environment protection, no toxicity and safety.
The bottom leveling putty in the current market mainly comprises gypsum base and cement base. The gypsum-based putty is not suitable for a humid environment due to high hygroscopicity; for example: patent document CN202110981406.2 discloses a desulfurized gypsum composition and a preparation method thereof, and gypsum-based interior wall putty and an application thereof, wherein by mutual cooperation of semi-aqueous phase desulfurized gypsum, anhydrous phase desulfurized gypsum and two-aqueous phase desulfurized gypsum in a specific mass ratio, the technical problems that the traditional gypsum material has strong water absorption, is easy to damp and deform, and can not be used in a high-humidity environment are effectively solved. However, this method requires calcination and aging under specific conditions, which leads to a significant increase in the cost of gypsum and a decrease in the economic efficiency. On the other hand, the water absorption and solubility of gypsum are only partially inhibited, and the problem that the strength of the gypsum putty is greatly reduced after being moistened cannot be completely avoided if the gypsum putty is kept in a high-humidity environment for a long time.
The cement-based putty has good water resistance, but low coating rate and high cost. For example: patent document CN111440473A discloses a lightweight environment-friendly exterior wall leveling putty and a preparation method thereof, which comprises the following components by weight percent: 20 to 40 percent of cement, 50 to 70 percent of construction waste powder, 0.3 to 0.6 percent of water-retaining agent, 0.1 to 0.3 percent of water repellent, 1.0 to 3.0 percent of active carbon, 0.5 to 1.0 percent of triethanolamine, 1.0 to 3.0 percent of dust-free wood fiber, 4.0 to 8.0 percent of inorganic mineral fiber, 0.1 to 0.3 percent of slip agent, 1.0 to 3.0 percent of latex powder and 2.0 to 4.0 percent of pigment. However, the specific gravity of the cement-based putty is high according to materials, so that for some base planes with poor flatness, under the condition that the construction thickness is required to be more than 10mm, the requirements can be met by constructing for 2-3 times, and the labor cost and the time cost are greatly increased. Patent document CN101955343A discloses an energy-saving leveling putty powder, which comprises the following components in percentage by weight: 20 to 30 percent of white cement, 5 to 10 percent of gray calcium carbonate powder, 40 to 60 percent of heavy calcium carbonate powder, 5 to 15 percent of light sand of 50 to 100 meshes, 0.1 to 1 percent of reinforcing fiber, 0.1 to 1.5 percent of polyvinyl alcohol, 0.1 to 1.8 percent of cellulose and 1 to 3 percent of polymer powder; wherein the light sand is polyphenyl particles. The document can give consideration to both cracking resistance and thick layer construction process, but the test is only carried out by referring to JG/T157-. Compared with putty for common exterior walls, leveling putty can be widely applied to indoor construction, and for indoor leveling, according to the requirements of T/CECS538-2018 technical Specification for application of leveling putty for buildings, the compressive strength index needs to be increased, and the situations of collision, hanging of heavy objects and the like in the later stage are mainly considered. In addition, the document uses a large amount of polyphenyl particles, so that the porosity of the mortar is too large, the hydration structure of the cement is loose, and the compressive strength is greatly reduced. Patent document CN110698904A discloses a rough leveling exterior wall putty and a preparation method thereof, which comprises the following components in parts by weight: 200-300 parts of ordinary portland cement, 400-500 parts of washed sand, 200-280 parts of heavy calcium powder, 15-50 parts of redispersible rubber powder, 4-6 parts of hydroxypropyl methyl cellulose, 2-4 parts of anti-crack fibers, 2-4 parts of a water repellent, 1-3 parts of magnesium aluminum silicate and 10-30 parts of calcium sulphoaluminate. However, the document mainly uses the aluminum calcium sulfate and the anti-crack fibers in a matching way to improve the anti-drying shrinkage capability of the putty layer; for the base layer with poor flatness, multiple construction processes are needed, and labor cost is not improved.
Therefore, the prior gypsum-based leveling putty and cement-based leveling putty are difficult to balance and give consideration to the aspects of water resistance and higher coating rate.
Disclosure of Invention
The invention aims to provide light bottom leveling putty, which solves the problem that the bottom leveling putty in the prior art cannot simultaneously have good water resistance and high coating rate, and simultaneously endows the bottom leveling putty with higher bonding strength and compressive strength to provide better safety for a system.
The technical scheme adopted by the invention for solving the technical problem is as follows.
The invention relates to bottom leveling putty powder using polyphenyl particles as light filler, which is characterized by being prepared from the following components in parts by weight: 200-300 parts of Portland cement, 450-650 parts of graded gravel, 2-10 parts of cellulose ether, 15-50 parts of rubber powder, 3-20 parts of polyphenyl particles, 150-250 parts of heavy calcium carbonate powder, 1-5 parts of a water repellent and 1-5 parts of fibers, wherein the total mass part is 1000 parts;
the graded sand and stone is one or a mixture of more of natural quartz sand, natural river sand and machine-made quartz sand with the fineness of 30-120 meshes;
the cellulose ether is one or more of methyl cellulose ether, hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether, and the viscosity is 20000-200000 mpa-s;
the rubber powder is ethylene-vinyl acetate copolymer rubber powder and/or building rubber powder, preferably ethylene-vinyl acetate copolymer rubber powder;
the polystyrene particles are prepared by expanding and foaming expandable polystyrene resin beads serving as basic raw materials; preferably, the master batch has an average particle diameter of 0.1 to 0.3mm, an average particle diameter after foaming of 0.5 to 2.0mm, and a volume weight of 18 to 25kg/m 3 The polyphenylene particles of (a);
the fineness of the heavy calcium carbonate powder is 200-400 meshes;
one or a mixture of more of organosilane water repellent and stearic acid water repellent; the fiber is polypropylene fiber, and the length is 3-9 mm.
The invention relates to a preparation method of bottom leveling putty powder using polyphenyl particles as light filler, which is characterized by comprising the following steps:
uniformly mixing the portland cement, graded sand stone, cellulose ether, rubber powder, a water repellent and fibers; adding the polyphenyl particles; then adding the coarse whiting powder and fully stirring.
The bottom leveling putty powder has the mass ratio of (4-6) to 1 to clear water when in use, and the preferable mixing ratio is (4.5-4.8) to 1; pouring a proper amount of water into a stirring barrel, slowly pouring the powder, stirring until the powder is uniform and free of particles, standing and curing for 3-5 min, and stirring again to obtain the powder.
The invention has the beneficial effects that:
the bottom leveling putty powder adopts a cement-based system, and has higher strength and water resistance compared with gypsum; the light polyphenyl particles are added, so that the thick-layer construction requirement of the leveling putty is met, the coating rate is higher, the thickness of a single construction can reach 10mm, the construction process is simple, the construction operability is good, and the labor cost is reduced; through scientific proportioning of the raw materials, the compression strength of the leveling putty is fully improved while the performance is considered, and higher safety is provided for the system.
Detailed Description
The technical solution of the present invention will be further specifically described below by way of specific examples.
In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified.
Example 1
The bottom leveling putty powder using the polyphenyl particles as the light filler is prepared from the following components in parts by weight: 250 parts of ordinary portland cement, 550 parts of graded sandstone, 3 parts of hydroxypropyl methyl cellulose ether with viscosity of 20000 mpa.s, 25 parts of rubber powder, 0.5-2.0 mm in particle size specification and 18kg/m in volume weight 3 5 parts of polyphenyl particles, 160 parts of heavy calcium powder with the fineness of 325 meshes, 2 parts of water repellent and 5 parts of fibers with the length of 3 mm;
uniformly mixing the portland cement, graded sand stone, cellulose ether, rubber powder, a water repellent and fibers; then adding the polyphenyl granules and stirring uniformly; finally, adding heavy calcium powder, and fully and uniformly stirring to obtain bottom leveling putty powder;
when in use, the bottom leveling putty powder and clear water are mixed according to the mass ratio of 4.7: pouring appropriate amount of water into a stirring barrel, then slowly adding the putty powder into the water while stirring until the putty powder is uniform and free of particles, standing and curing for 3-5 min, and stirring again to obtain the putty powder. The single-layer construction thickness can reach 10 mm.
Example 2
The bottom leveling putty powder using the polyphenyl particles as the light filler is prepared from the following components in parts by weight: 270 parts of ordinary Portland cement, 530 parts of graded sandstone, 3 parts of hydroxypropyl methyl cellulose ether with the viscosity of 20000 mpa.s, 25 parts of rubber powder, the specification of particle size of 0.5-2.0 mm and the volume weight of 18kg/m 3 10 parts of polyphenyl particles, 150 parts of coarse whiting with the fineness of 325 meshes and a water repellent2 parts of fiber with the length of 3mm and 10 parts of fiber;
uniformly mixing the silicate cement, the graded sand stone, the cellulose ether, the rubber powder, the water repellent and the PP fiber; then adding the polyphenyl granules and stirring uniformly; finally, adding heavy calcium powder, and fully and uniformly stirring to obtain bottom leveling putty powder;
when in use, the bottom leveling putty powder and clear water are mixed according to the mass ratio of 4.7: pouring appropriate amount of water into a stirring barrel, then slowly adding the putty powder into the water while stirring until the putty powder is uniform and free of particles, standing and curing for 3-5 min, and stirring again to obtain the putty powder. By increasing the proportion of the polyphenyl particles, the single construction thickness can be increased to 15mm, and meanwhile, the gelling component is optimized, so that the compressive strength of the leveling putty is ensured while the light component is increased.
Example 3
The bottom leveling putty powder using the polyphenyl particles as the light filler is prepared from the following components in parts by weight: 260 parts of ordinary Portland cement, 535 parts of graded sandstone, 3 parts of hydroxypropyl methyl cellulose ether with viscosity of 40000mpa & s, 25 parts of rubber powder, 0.5-2.0 mm in particle size specification and 18kg/m in volume weight 3 10 parts of polyphenyl particles, 160 parts of heavy calcium powder with the fineness of 325 meshes, 2 parts of water repellent and 5 parts of fiber with the length of 6 mm;
uniformly mixing the silicate cement, the graded sand stone, the cellulose ether, the rubber powder, the water repellent and the PP fiber; then adding the polyphenyl granules and stirring uniformly; finally, adding heavy calcium powder, and fully and uniformly stirring to obtain bottom leveling putty powder;
when in use, the bottom leveling putty powder and clear water are mixed according to the mass ratio of 4.8: pouring proper amount of water into a stirring barrel, slowly adding the putty powder into the water while stirring until the putty powder is uniform and free of particles, standing and curing for 3-5 min, and stirring again to obtain the putty powder. The crack resistance of the leveling putty is further improved by optimizing the cellulose ether and the fiber.
Example 4
The bottom leveling putty powder using the polyphenyl particles as the light filler is prepared from the following components in parts by weight: 280 parts of ordinary silicate water, 520 parts of graded sand and stone and 40000mpa of viscosity2.5 parts of s hydroxypropyl methyl cellulose ether, 25 parts of rubber powder, 0.5-2.0 mm of particle size specification and 18kg/m of volume weight 3 15 parts of polyphenyl particles, 148 parts of 325-mesh heavy calcium powder, 2 parts of a water repellent and 7.5 parts of PP (polypropylene) fibers with the length of 6 mm;
uniformly mixing the silicate cement, the graded sand stone, the cellulose ether, the rubber powder, the water repellent and the PP fiber; then adding the polyphenyl granules and stirring uniformly; finally, adding heavy calcium powder, and fully and uniformly stirring to obtain bottom leveling putty powder;
when in use, the bottom leveling putty powder and clear water are mixed according to the mass ratio of 4.8: pouring appropriate amount of water into a stirring barrel, then slowly adding the putty powder into the water while stirring until the putty powder is uniform and free of particles, standing and curing for 3-5 min, and stirring again to obtain the putty powder.
By further improving the proportion of the polyphenyl particles, the single construction thickness can be improved to 20mm, and meanwhile, the gelling component is optimized, so that the compressive strength of the leveling putty is ensured while the light component is improved.
The paint is prepared according to the embodiment according to the requirements of T/CECS538-2018 technical Specification for leveling putty for construction, and the performance indexes are as shown in the following table.
TABLE 1 Performance test results of examples 1 to 4
As can be seen from Table 1, the tensile bond strength test value of the high-strength light bottom leveling putty powder is improved by more than one time compared with the standard requirement, the bonding force is better, and the system safety is more guaranteed. In table 1, the test results of T/CECS538 and 2018, namely the technical specification of leveling putty application for construction, of gypsum-based leveling and ordinary polyphenyl particles are compared, the comparative gypsum-based leveling putty is greatly reduced in strength after being soaked in water, and the compressive strength of the ordinary polyphenyl particle leveling putty cannot meet the standard requirements.
The high-strength polyphenyl particle light bottom leveling putty powder optimizes compressive strength while improving water immersion property, improves product performance, can meet the requirement of thick-layer construction, and can reach the requirement of 10-20mm in single construction thickness. The product performance and the application performance are superior to those of the similar products sold in the market.
Claims (9)
1. The bottom leveling putty powder using the polyphenyl particles as the light filler is characterized by being prepared from the following components in parts by weight: 200-300 parts of Portland cement, 450-650 parts of graded gravel, 2-10 parts of cellulose ether, 15-50 parts of rubber powder, 3-20 parts of polyphenyl particles, 150-250 parts of heavy calcium carbonate powder, 1-5 parts of a water repellent and 1-5 parts of fibers, wherein the total mass part is 1000 parts.
2. The bottom leveling putty powder according to claim 1, characterized in that the graded sand and stone is one or a mixture of more of natural quartz sand, natural river sand and machine-made quartz sand with the fineness of 30-120 meshes.
3. The bottom layer leveling putty powder of claim 1 wherein the cellulose ether is one or more of methyl cellulose ether, hydroxypropyl methyl cellulose ether or hydroxyethyl methyl cellulose ether and has a viscosity of 20000 to 200000 mpa.s.
4. The bottom leveling putty powder of claim 1, wherein the rubber powder is ethylene-vinyl acetate copolymer rubber powder and/or building rubber powder.
5. The bottom leveling putty powder of claim 1 wherein the polystyrene particles are made by expanding and foaming expandable polystyrene resin beads as a base material; the master batch has an average particle diameter of 0.1 to 0.3mm, an average particle diameter after foaming of 0.5 to 2.0mm, and a volume weight of 18 to 25kg/m 3 The polyphenylene particle of (4).
6. The bottom leveling putty powder according to claim 1, wherein the fineness of the heavy calcium carbonate powder is 200-400 meshes; one or a mixture of more of organosilane water repellent and stearic acid water repellent; the fiber is polypropylene fiber, and the length is 3-9 mm.
7. A preparation method of bottom leveling putty powder using polyphenyl particles as light filler is characterized by comprising the following steps:
uniformly mixing the portland cement, graded sand stone, cellulose ether, rubber powder, a water repellent and fibers; adding the polyphenyl particles; then adding the coarse whiting powder and fully stirring.
8. The preparation method of the bottom leveling putty powder according to claim 7 is characterized in that the mass ratio of the bottom leveling putty powder to clear water in use is (4-6): 1, pouring a proper amount of water into a stirring barrel, slowly pouring the powder, stirring until the powder is uniform and free of particles, standing and curing for 3-5 min, and stirring again to obtain the powder.
9. The preparation method of the bottom leveling putty powder according to claim 8 is characterized in that the mass ratio of the bottom leveling putty powder to clear water in use is (4.5-4.8): 1.
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2022
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