CN110526651B - Wallboard material with decorative mortar layer - Google Patents

Wallboard material with decorative mortar layer Download PDF

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Publication number
CN110526651B
CN110526651B CN201910918289.8A CN201910918289A CN110526651B CN 110526651 B CN110526651 B CN 110526651B CN 201910918289 A CN201910918289 A CN 201910918289A CN 110526651 B CN110526651 B CN 110526651B
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parts
wallboard
layer
wallboard main
main part
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CN110526651A (en
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王四九
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Jiangsu Jiunuo New Material Technology Co ltd
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Jiangsu Jiunuo New Material Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
    • C04B41/48Macromolecular compounds
    • C04B41/4857Other macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/044Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00241Physical properties of the materials not provided for elsewhere in C04B2111/00
    • C04B2111/00293Materials impermeable to liquids

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Architecture (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention relates to the technical field of wallboard materials, in particular to a wallboard material with a decorative mortar layer, which comprises a wallboard main body, wherein the upper surface and the lower surface of the wallboard main body are rough surfaces, the lower surface of the wallboard main body is provided with a flexible layer, a sound insulation layer is arranged between the flexible layer and the wallboard main body, the upper surface of the wallboard main body is sequentially coated with a plastering flat layer, a surface layer and a coating, and the plastering flat layer comprises the following components in parts by mass: 20-30 parts of white cement clinker, 6-12 parts of plaster of paris, 2-8 parts of calcium powder, 1.8-2.4 parts of clay and 10-20 parts of silicon dioxide; according to the invention, the sound insulation layer and the flexible layer are arranged on the lower surface of the wallboard main body, so that the sound insulation performance of the wallboard main body is improved, the defect of poor sound insulation effect of the traditional wallboard material is overcome, the structural design of the flexible layer not only plays a role in heat insulation and sound insulation, but also improves the elasticity and the buffer property of the wallboard material, and the impact resistance of the wallboard material is improved.

Description

Wallboard material with decorative mortar layer
Technical Field
The invention relates to the technical field of wallboard materials, in particular to a wallboard material with a decorative mortar layer.
Background
The wallboard material is generally used in public buildings such as house, apartment, office building, school, and the classification standard has the multiple, divides according to service function, can divide into interior wallboard and side fascia, and interior wallboard is divided into horizontal wallboard, vertical wall board and partition wall board again, and the side fascia is divided into positive side fascia, gable wall board and eaves wallboard again.
The decorative mortar layer has remarkable advantages in the aspects of bonding safety, air permeability, color retentivity and the like, and although the decorative mortar layer inevitably encounters a saltpetering problem, the composite cementing material system is adopted to optimize the particle grading of the powder material, and the multilayer saltpetering-resistant layer is arranged, so that the saltpetering of the decorative mortar layer can be effectively inhibited. However, the traditional decorative mortar layer has the problems of large brittleness and insufficient toughness, and cracks are easy to generate, so the anti-permeability performance is poor.
Disclosure of Invention
The purpose of the invention is: overcomes the defects in the prior art, and provides a wallboard material with a decorative mortar layer, which has high strength and strong impermeability.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the matte, the lower surface of wallboard main part is equipped with the flexible layer of one deck, be provided with the one deck puigging between flexible layer and the wallboard main part, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the quality of plastered flat bed is constituteed as follows: 20-30 parts of white cement clinker, 6-12 parts of plaster of paris, 2-8 parts of calcium powder, 1.8-2.4 parts of clay and 10-20 parts of silicon dioxide;
the surface layer comprises, by mass, 20-30 parts of white portland cement, 6-10 parts of hydrated lime, 10-20 parts of polyacrylic acid emulsion, 6-12 parts of modified cellulose ether, 3.6-8 parts of thixotropic lubricant, 6-12 parts of fine aggregate and 2-5 parts of coarse aggregate.
Furthermore, the particle size of the fine aggregate is 180 mu m-4.5mm, and the particle size of the coarse aggregate is more than 5.6mm.
Further, the thixotropic lubricant is a sheet-like smectite-containing silicate.
Further, the coating comprises the following components in parts by mass: 6-12 parts of polyacrylic acid emulsion, 10-20 parts of polyurethane modified epoxy resin and 70-80 parts of clear water.
Further, the particle size of the calcium powder is 200 mu m-3.2mm.
Further, the clay is one of kaolinite, petrolatum, montmorillonite and vermiculite.
Further, the particle size of the silicon dioxide is 300-800 μm.
Further, the modified cellulose ether is polydimethylsiloxane modified cellulose ether.
Further, the wallboard body is connected with the sound insulation layer and the flexible layer through an adhesive.
Furthermore, the sound-proof layer selects for use environmental protection to inhale the sound cotton, the flexible layer selects for use nitrile rubber.
The technical scheme adopted by the invention has the beneficial effects that:
according to the invention, the sound insulation layer and the flexible layer are arranged on the lower surface of the wallboard main body, so that the sound insulation performance of the wallboard main body is improved, the defect of poor sound insulation effect of the traditional wallboard material is overcome, the structural design of the flexible layer not only plays a role in heat insulation and sound insulation, but also improves the elasticity and the buffer property of the wallboard material, and the impact resistance of the wallboard material is improved.
According to the invention, the clay is added into the plastering flat layer of the decorative mortar layer, and has plasticity, nucleation property, thixotropy and contractibility, so that the adhesive force between the plastering flat layer and the wallboard main body is higher, the probability of cracking of the plastering flat layer is lower, the adhesive effect between the flat layer and the surface layer is improved, the using amount of the surface layer material can be reduced, the thickness of the surface layer is reduced, meanwhile, the clay is mixed with a proper amount of water to form a mud mass, the mud mass deforms but does not crack under the action of external force, the original shape can be kept unchanged after the external force is dissipated, and the property of the clay is called plasticity. Moreover, when the clay mud or the plastic mud group is vibrated or stirred, the viscosity can be reduced, the fluidity can be increased, and the clay mud or the plastic mud group can be gradually restored to the original state after standing. In addition, after the slurry is placed for a period of time, the phenomenon of thickening and solidification can also occur under the condition of keeping the original moisture unchanged, and the impermeability of the wallboard material is improved.
The thixotropic lubricant is added into the surface layer of the decorative mortar layer, and mainly aims at the performances of improvement of workability, opening time and consistency in a cement-based system. The construction performance and the sagging resistance of the mortar, plaster, bottom ash, plastering mortar and adhesive are improved, the self-leveling cement is prevented from layering, the adhesive force between a flat layer and a surface layer is improved, the construction effect of the surface layer is improved, and the anti-permeability performance of the wallboard material is improved.
The thixotropic lubricant in the present invention is a lamellar silicate containing montmorillonite which is composed of a disc-packed material of a very thin (about 10A,7 atoms thick) and relatively wide diameter ratio (about 1000 nm) and is a three-layered ore having a dioctahedral crystal structure with an intragranular swelling ability. In aqueous media, these layered swellable silicates are able to form a so-called cabin-like structure. This structure can increase the basic viscosity of the system, and on the other hand, can be plastically destroyed when a shear force is applied beyond a certain limit energy (yield point).
Detailed Description
The present invention will be described in further detail with reference to specific embodiments in order to make the above objects, features and advantages more apparent and understandable.
The utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the mat surface, the lower surface of wallboard main part is equipped with one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the quality part composition of the flat bed of plastering is as follows: 20-30 parts of white cement clinker, 6-12 parts of plaster of paris, 2-8 parts of calcium powder, 1.8-2.4 parts of clay and 10-20 parts of silicon dioxide;
the surface layer comprises, by mass, 20-30 parts of white portland cement, 6-10 parts of hydrated lime, 10-20 parts of polyacrylic acid emulsion, 6-12 parts of modified cellulose ether, 3.6-8 parts of thixotropic lubricant, 6-12 parts of fine aggregate and 2-5 parts of coarse aggregate.
According to the invention, the sound insulation layer and the flexible layer are arranged on the lower surface of the wallboard main body, so that the sound insulation performance of the wallboard main body is improved, the defect of poor sound insulation effect of the traditional wallboard material is overcome, the structural design of the flexible layer not only plays a role in heat insulation and sound insulation, but also improves the elasticity and the buffer property of the wallboard material, and the impact resistance of the wallboard material is improved.
According to the invention, the clay is added into the plastering flat layer of the decorative mortar layer, and has plasticity, nucleation property, thixotropy and contractibility, so that the adhesive force between the plastering flat layer and the wallboard main body is higher, the probability of cracking of the plastering flat layer is lower, the adhesive effect between the flat layer and the surface layer is improved, the using amount of the surface layer material can be reduced, the thickness of the surface layer is reduced, meanwhile, the clay is mixed with a proper amount of water to form a mud mass, the mud mass deforms but does not crack under the action of external force, the original shape can be kept unchanged after the external force is dissipated, and the property of the clay is called plasticity. Moreover, when the clay slurry or the plastic clay mass is vibrated or stirred, the viscosity is reduced, the fluidity is increased, and the clay slurry or the plastic clay mass is gradually restored to the original state after standing. In addition, after the slurry is placed for a period of time, the phenomenon of thickening and solidification can also occur under the condition of keeping the original moisture unchanged, and the impermeability of the wallboard material is improved.
The thixotropic lubricant is added into the surface layer of the decorative mortar layer, and the thixotropic lubricant mainly aims at the performances of improvement of workability, opening time and consistency in a cement-based system. The construction performance and the sagging resistance of the mortar, plaster, bottom ash, plastering mortar and adhesive are improved, the self-leveling cement is prevented from layering, the adhesive force between a flat layer and a surface layer is improved, the construction effect of the surface layer is improved, and the anti-permeability performance of the wallboard material is improved.
As a preferable embodiment, the particle size of the fine aggregate in this embodiment is 180 μm to 4.5mm, the particle size of the coarse aggregate is more than 5.6mm, and the particle sizes of the fine aggregate and the coarse aggregate are controlled within this range, so that the aggregates can be prevented from being separated out during the construction, the adhesion between the flat layer and the surface layer can be improved, and the construction effect between the flat layer and the surface layer can be improved.
As a preferred embodiment, the thixotropic lubricant in this example is a lamellar smectite-containing silicate consisting of a very thin (about 10A,7 atoms thick) disc-packed material with a relatively wide diameter ratio (about 1000 nm), which is a three-layer mineral having a dioctahedral crystal structure with intracrystalline swelling ability. In aqueous media, these layered swellable silicates can form a so-called cottage structure. This structure can increase the basic viscosity of the system, and on the other hand, can be plastically destroyed when shear forces are applied beyond a certain threshold energy (yield point).
As a preferred embodiment, the coating in this example is composed of the following components in parts by mass: 6-12 parts of polyacrylic acid emulsion, 10-20 parts of polyurethane modified epoxy resin and 70-80 parts of clear water.
As a preferred embodiment, the particle size of the calcium powder in this example is 200 μm to 3.2mm.
As a preferred embodiment, the clay in this embodiment is one of kaolinite, petrolatum, montmorillonite and vermiculite.
As a preferred embodiment, the particle size of the silica in this example is 300 to 800. Mu.m.
As a preferred embodiment, the modified cellulose ether in this embodiment is polydimethylsiloxane-modified cellulose ether, which can suitably reduce the water absorption of the wallboard material, thereby reducing the corrosion of the wallboard material caused by long-term rain erosion.
As a preferred embodiment, the main body of the wallboard in this example is connected to the acoustical layer and the flexible layer by an adhesive.
As a preferred embodiment, the sound insulation layer in this embodiment is made of environment-friendly sound-absorbing cotton, and the flexible layer is made of nitrile rubber.
Example 1
The utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the mat surface, the lower surface of wallboard main part is equipped with one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, be connected through the adhesive between wallboard main part and puigging and the flexible layer, the puigging chooses for use the environmental protection to inhale the sound cotton, and nitrile rubber is chooseed for use to the flexible layer, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the quality part of the flat bed of plastering is constituteed as follows: 20 parts of white cement clinker, 6 parts of plaster of paris, 2 parts of calcium powder, 1.8 parts of clay and 10 parts of silicon dioxide; the particle size of the calcium powder is 200-3.2 mm, the clay is kaolinite, and the particle size of the silicon dioxide is 300-800 μm;
the surface layer comprises, by mass, 20 parts of white portland cement, 6 parts of hydrated lime, 10 parts of polyacrylic acid emulsion, 6 parts of modified cellulose ether, 3.6 parts of thixotropic lubricant, 6 parts of fine aggregate and 2 parts of coarse aggregate; the particle size of the fine aggregate is 180 mu m to 4.5mm, the particle size of the coarse aggregate is more than 5.6mm, the thixotropic lubricant is lamellar silicate containing montmorillonite, the modified cellulose ether is polydimethylsiloxane modified cellulose ether,
the coating comprises the following components in parts by mass: 6 parts of polyacrylic acid emulsion, 10 parts of polyurethane modified epoxy resin and 70 parts of clear water.
Example 2
The utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the matte, the lower surface of wallboard main part is equipped with the one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, be connected through the adhesive between wallboard main part and puigging and the flexible layer, the puigging chooses for use the environmental protection to inhale the sound cotton, and nitrile rubber is chooseed for use to the flexible layer, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the part by mass of plastered flat bed constitutes as follows: 21 parts of white cement clinker, 8 parts of plaster of paris, 3 parts of calcium powder, 1.8 parts of clay and 12 parts of silicon dioxide; the calcium powder has a particle size of 200-3.2 mm, the clay is selected from paraffin, and the silicon dioxide has a particle size of 300-800 μm;
the surface layer comprises, by mass, 21 parts of white portland cement, 7 parts of hydrated lime, 12 parts of polyacrylic acid emulsion, 7 parts of modified cellulose ether, 4 parts of thixotropic lubricant, 6.4 parts of fine aggregate and 2.5 parts of coarse aggregate; the particle size of the fine aggregate is 180 mu m to 4.5mm, the particle size of the coarse aggregate is more than 5.6mm, the thixotropic lubricant is lamellar silicate containing montmorillonite, the modified cellulose ether is polydimethylsiloxane modified cellulose ether,
the coating comprises the following components in parts by mass: 7 parts of polyacrylic acid emulsion, 12 parts of polyurethane modified epoxy resin and 75 parts of clear water.
Example 3
The utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the matte, the lower surface of wallboard main part is equipped with the one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, be connected through the adhesive between wallboard main part and puigging and the flexible layer, the puigging chooses for use the environmental protection to inhale the sound cotton, and nitrile rubber is chooseed for use to the flexible layer, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the part by mass of plastered flat bed constitutes as follows: 25 parts of white cement clinker, 9 parts of calcined gypsum, 5 parts of calcium powder, 2 parts of clay and 15 parts of silicon dioxide; the calcium powder has a particle size of 200-3.2 mm, the clay is montmorillonite, and the silicon dioxide has a particle size of 300-800 μm;
the surface layer comprises, by mass, 24 parts of white portland cement, 8 parts of hydrated lime, 15 parts of polyacrylic acid emulsion, 10 parts of modified cellulose ether, 6 parts of thixotropic lubricant, 9 parts of fine aggregate and 3.5 parts of coarse aggregate; the particle size of the fine aggregate is 180 mu m to 4.5mm, the particle size of the coarse aggregate is more than 5.6mm, the thixotropic lubricant is lamellar silicate containing montmorillonite, the modified cellulose ether is polydimethylsiloxane modified cellulose ether,
the coating comprises the following components in parts by mass: 8 parts of polyacrylic acid emulsion, 15 parts of polyurethane modified epoxy resin and 75 parts of clear water.
Example 4
The utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the matte, the lower surface of wallboard main part is equipped with the one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, be connected through the adhesive between wallboard main part and puigging and the flexible layer, the puigging chooses for use the environmental protection to inhale the sound cotton, and nitrile rubber is chooseed for use to the flexible layer, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the part by mass of plastered flat bed constitutes as follows: 28 parts of white cement clinker, 10 parts of plaster of paris, 6 parts of calcium powder, 2.1 parts of clay and 18 parts of silicon dioxide; the calcium powder has particle size of 200-3.2 mm, the clay is montmorillonite, and the silicon dioxide has particle size of 300-800 μm;
the surface layer comprises, by mass, 28 parts of white portland cement, 9 parts of hydrated lime, 18 parts of polyacrylic acid emulsion, 10 parts of modified cellulose ether, 7.2 parts of thixotropic lubricant, 10 parts of fine aggregate and 4.5 parts of coarse aggregate; the particle size of the fine aggregate is 180 mu m to 4.5mm, the particle size of the coarse aggregate is more than 5.6mm, the thixotropic lubricant is lamellar silicate containing montmorillonite, the modified cellulose ether is polydimethylsiloxane modified cellulose ether,
the coating comprises the following components in parts by mass: 10 parts of polyacrylic acid emulsion, 18 parts of polyurethane modified epoxy resin and 78 parts of clear water.
Example 5
The utility model provides a wallboard material with decorate mortar layer, includes the wallboard main part, the upper surface and the lower surface of wallboard main part are the matte, the lower surface of wallboard main part is equipped with the one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, be connected through the adhesive between wallboard main part and puigging and the flexible layer, the puigging chooses for use the environmental protection to inhale the sound cotton, and nitrile rubber is chooseed for use to the flexible layer, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the part by mass of plastered flat bed constitutes as follows: 30 parts of white cement clinker, 12 parts of plaster of paris, 8 parts of calcium powder, 2.4 parts of clay and 20 parts of silicon dioxide; the particle size of the calcium powder is 200-3.2 mm, the clay is vermiculite, and the particle size of the silicon dioxide is 300-800 μm;
the surface layer comprises, by mass, 30 parts of white portland cement, 10 parts of hydrated lime, 20 parts of polyacrylic acid emulsion, 12 parts of modified cellulose ether, 8 parts of thixotropic lubricant, 12 parts of fine aggregate and 5 parts of coarse aggregate; the particle size of the fine aggregate is 180 mu m to 4.5mm, the particle size of the coarse aggregate is more than 5.6mm, the thixotropic lubricant is lamellar silicate containing montmorillonite, the modified cellulose ether is polydimethylsiloxane modified cellulose ether,
the coating comprises the following components in parts by mass: 12 parts of polyacrylic acid emulsion, 20 parts of polyurethane modified epoxy resin and 80 parts of clear water.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. A wallboard material with a decorative mortar layer is characterized in that: including the wallboard main part, the upper surface and the lower surface of wallboard main part are the mat surface, the lower surface of wallboard main part is equipped with the one deck flexible layer, be provided with the one deck puigging between flexible layer and the wallboard main part, the upper surface of wallboard main part has coated in proper order and has plastered flat bed, surface course and coating, the quality of the flat bed of plastering is divided into as follows: 20-30 parts of white cement clinker, 6-12 parts of plaster of paris, 2-8 parts of calcium powder, 1.8-2.4 parts of clay and 10-20 parts of silicon dioxide;
the surface layer comprises, by mass, 20-30 parts of white portland cement, 6-10 parts of hydrated lime, 10-20 parts of polyacrylic acid emulsion, 6-12 parts of modified cellulose ether, 3.6-8 parts of thixotropic lubricant, 6-12 parts of fine aggregate and 2-5 parts of coarse aggregate;
the thixotropic lubricant is a lamellar montmorillonite-containing silicate;
the clay is one of kaolinite, petrolatum, montmorillonite and vermiculite.
2. A wallboard material having a decorative mortar layer according to claim 1 wherein: the particle size of the fine aggregate is 180 mu m-4.5mm, and the particle size of the coarse aggregate is more than 5.6mm.
3. A wallboard material having a decorative mortar layer according to claim 1 wherein: the coating comprises the following components in parts by mass: 6-12 parts of polyacrylic acid emulsion, 10-20 parts of polyurethane modified epoxy resin and 70-80 parts of clear water.
4. A wallboard material having a decorative mortar layer in accordance with claim 1 wherein: the particle size of the calcium powder is 200 mu m-3.2mm.
5. A wallboard material having a decorative mortar layer in accordance with claim 1 wherein: the particle size of the silicon dioxide is 300-800 μm.
6. A wallboard material having a decorative mortar layer according to claim 1 wherein: the modified cellulose ether is polydimethylsiloxane modified cellulose ether.
7. A wallboard material having a decorative mortar layer in accordance with claim 1 wherein: the wallboard main body is connected with the sound insulation layer and the flexible layer through an adhesive.
8. A wallboard material having a decorative mortar layer in accordance with claim 1 wherein: the soundproof layer is made of environment-friendly sound absorption cotton, and the flexible layer is made of nitrile rubber.
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