CN114412116A

CN114412116A - Method for improving splicing crack resistance of plate, plate splicing crack-resistant veneer and manufacturing method

Info

Publication number: CN114412116A
Application number: CN202111557269.6A
Authority: CN
Inventors: 郭四龙; 马志勇; 郭昊伦
Original assignee: Suzhou Hongni New Material Technology Co ltd
Current assignee: Suzhou Hongni New Material Technology Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-04-29

Abstract

The application discloses splice plate material anti-cracking veneer and preparation method thereof, on the concatenation surface that panel concatenation formed, along the concatenation seam of concatenation panel, criticize and scrape strip putty layer, whole concatenation surface upper cover including fibre texture network, coating infiltration curing agent's decorative layer, wherein, infiltration curing agent infiltration, infiltration pass fibre texture network to infiltration, permeate to putty and panel surface. Methods of improving the crack resistance of a spliced panel are also disclosed. This application technical scheme can solve splice plate material and have decorative problem under the condition of difference in height, solves panel difference and the color that leads to, the inhomogeneous problem of texture simultaneously, solves the coating fracture problem that traditional splice plate material often appears simultaneously.

Description

Method for improving splicing crack resistance of plate, plate splicing crack-resistant veneer and manufacturing method

Technical Field

The invention relates to a solution for crack resistance of a board splicing part, in particular to a board splicing crack resistance veneer which can reduce the using amount of putty and has uniform color and a manufacturing method thereof.

Background

The fabricated building is a building which is formed by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and accessories (such as floor slabs, wall slabs, stairs, balconies and the like) in the factory, transporting the components and accessories to a building construction site, and assembling and installing the components and the accessories on the site in a reliable connection mode. The prefabricated building mainly comprises a prefabricated concrete structure, a steel structure, a modern wood structure building and the like, and is a representative of a modern industrial production mode due to the adoption of standardized design, factory production, assembly construction, informatization management and intelligent application.

Fabricated buildings have become of interest since the beginning of the 20 th century and have been realized through the sixties. The first attempts made in English, French, Soviet Union, etc. The assembly type building has high construction speed and low production cost, and is rapidly popularized and developed all over the world.

The plate building is a main type of an assembly type building and is formed by assembling prefabricated large-scale inner and outer wall plates, floor slabs, roof slabs and other plates, and the plate building is also called as a large plate building; the structure weight can be reduced, the labor productivity is improved, and the use area and the shockproof capability of the building are enlarged. The construction process mainly comprises the following steps: the wall surface, the top surface and the ground of the building are spliced and installed by adopting various plates, and then the surfaces of the plates are decorated.

The splice joint is inevitable when the boards are spliced and installed, the decorative surface at the splice joint is easy to deform and crack, the decorative surface effect is unsatisfactory, the solution is to fill and fill the splice joint with putty, the putty and the boards are different in material, different in water absorption rate, different in texture of the adjacent boards, and incapable of achieving that the surfaces of the boards are all located on a uniform plane (with height difference), the decorative surface is not uniform in light reflection angle after being manufactured, the color difference of the coating and the texture difference are obvious (as shown in figure 1), the decorative effect is seriously affected, in order to solve the problem, the surfaces (including the board joint/splice joint) of all the boards can only be coated with the putty, batch scraping is carried out, and then the construction of the uniform decorative coating is carried out. Use gypsum board concatenation wall, top surface that the present application is the broadest as an example, prior art scheme is: splicing and installing gypsum boards, processing splicing seams (embedding crack-resistant belts and filling putty), performing nail hole rust prevention treatment, uniformly scraping putty on the surface of a board (including the board seams/splicing seams), polishing the putty to be flat, coating a bottom coating, and coating a top coating. After a period of time, the stress at the splicing seam is often transmitted to the pre-embedded anti-cracking belt and the putty on the surface of the anti-cracking belt, so that the putty on the surface of the anti-cracking belt cracks, and finally the coating cracks. This has become a common problem for tiled architectural decorative systems and a technical challenge that those skilled in the art have long desired to solve.

Meanwhile, the construction process is time-consuming and labor-consuming, full putty is needed, and the using amount of the putty is about 2-2.5kg/m²The putty needs to be waited for a long time for drying, particularly in a weather environment with low temperature and high humidity, long waiting time is needed, the putty needs to be polished to be smooth after being dried, fine dust flies in the polishing process, the putty is not friendly to the construction environment, and the health of constructors is seriously influenced.

CN109826341A discloses a putty-free gypsum board partition wall construction method, embedding gypsum into a plane splicing seam, wherein the gypsum is 2-3mm higher than the plane splicing seam, then pasting a splicing seam paper tape, compacting and striking flat, and then scraping the caulking gypsum. Although this patent claims to achieve good flatness, it can only be used in locations where there are no special requirements for flatness. The problems of chromatic aberration and the like in the prior art cannot be solved, and the chromatic aberration is increased due to the use of various different materials. Meanwhile, the putty on the joint tape can generate surface cracks of the coating.

CN113150584A discloses a putty-free top coat (top coat) that covers tiny flaws by slow leveling for a long time, but this top coat takes a long time to dry, on the other hand, if used in wall facades, this long leveling, under the action of gravity, either forms sags or is uneven in thickness from top to bottom, causing color differences; if the board is used for splicing boards of suspended ceilings and the like, obvious sagging and drop marks are formed under the action of gravity, and even the board drops from the roofs. And when the obvious height difference exists, the problem of color difference at the splicing position cannot be solved.

The applicant's early Chinese patent application CN113266118A discloses a crack-resistant finish coating for the ground of an assembled spliced wall, and the joint seams are not filled with putty, so that the crack resistance problem is well solved. However, if the height difference exists between the adjacent spliced plates, the color difference of the coating at the spliced part is obvious, and the decorative effect of the coating is obviously reduced.

Disclosure of Invention

In order to solve the problems of decoration and coating cracking caused by splicing seams of spliced building boards, the application provides a method for improving board splicing crack resistance, a spliced board crack-resistant decorative surface and a manufacturing method of the spliced board crack-resistant decorative surface.

In a first aspect, the present invention provides a method for manufacturing a crack-resistant finish of a spliced board, or improving crack resistance of a spliced board (especially improving crack resistance of a coating thereof), comprising:

on a splicing surface formed by splicing the plates with the height difference, strip-shaped putty is batched and filled along a splicing seam of the spliced plates, and the surface of the putty inclines from the surface of a higher splicing plate to the surface of a lower splicing plate to form an inclined plane; polishing and flattening the strip batch-scraped putty; thereby connecting the first surface, wherein the first surface is a surface for decoration, and comprises the surface of a spliced plate and the surface of a polished and flat strip batch putty;

covering a fiber texture network on the whole first surface and coating an infiltration curing agent, wherein the fiber texture network and the infiltration curing agent simultaneously cover a putty covering area and a putty uncovered area of the first surface; and the impregnation curing agent is infiltrated and permeated through the fiber texture network, and is infiltrated and permeated to the surface of the putty and the plate, or is also infiltrated and permeated to the interior of the putty and/or the plate to form the decorative layer.

The second aspect of the application provides an anti-cracking veneer for spliced plates, which comprises spliced plates, wherein strip putty layers are scraped on the spliced surfaces formed by splicing the plates along the splicing seams of the spliced plates, and the putty surfaces of the strip putty layers are inclined from the surfaces of higher spliced plates to the surfaces of lower spliced plates to form inclined planes at the splicing seams of adjacent spliced plates with height difference, so that the first surfaces are spliced; the whole first surface is covered with a decorative layer comprising a fiber texture network and an impregnation curing agent, wherein the impregnation curing agent is infiltrated and permeated through the fiber texture network, infiltrated and permeated to the surface of the putty and the plate, or infiltrated and permeated to the interior of the putty and/or the plate to form the decorative layer.

In a preferred embodiment, the surface of the panels may be batched or unpainted, and if batched, the batched putty does not join together between adjacent panels.

In a preferred embodiment, the width of each sheet (i.e. the distance from the adjacent edge to the opposite edge of the sheet) is preferably at least 50cm, more preferably at least 1m, more preferably at least 1.5 m.

In a preferred embodiment, the impregnating curing agent also wets and penetrates into the interior of the putty and the board.

In a preferred embodiment, the adjacent splice sheets are allowed to have a height difference at the first surface.

Preferably, the height difference may not exceed 5mm, more preferably, the height difference may not exceed 3mm, more preferably, the height difference may not exceed 2 mm. Preferably, the height difference is greater than or equal to 0.5mm, and more preferably, the height difference is greater than or equal to 1 mm.

In a preferred embodiment, the colors of the adjacent spliced plates can be the same or different, and the application allows the adjacent plates to have color difference, and the color difference value can be more than or equal to 1, even more than or equal to 2, or more than or equal to 3, and allows the human eye to distinguish the color difference.

In a preferred embodiment, the roughness of adjacent splice plates may be the same or different.

In a preferred embodiment, the materials of adjacent splice plates can be the same or different.

In a preferred embodiment, the texture of adjacent splice plates can be the same or different.

In a preferred embodiment, the putty may be any one or more of a gypsum-based putty, a cement-based putty, a polymer-modified putty, a lime putty.

In a preferred embodiment, the strip of putty is batched along the length of the splice seam and the width of the batched putty is such that it fills the splice seam.

In a preferred embodiment, the following first plane means that the thickness of the putty strip edge does not exceed a maximum of 100 μm, more preferably 50 μm, and even more preferably 20 μm. However, it is permissible that the thickness is 1 μm or more, more preferably 5 μm or more, still more preferably 10 μm or more, still more preferably 20 μm or more.

In a preferred embodiment, the strip of putty is extended from the edge of the splice seam to a lower panel by an extension distance to form an inclined extension; the height difference between adjacent splice plates is no more than 10%, more preferably no more than 5%, more preferably no more than 4%, more preferably no more than 2% of the extension distance.

In a preferred embodiment, the strip of putty extends from the edge of the splice seam towards the lower panel for a distance of preferably no more than 30cm, more preferably no more than 25cm, more preferably no more than 20cm, more preferably no more than 15cm, more preferably from 3 to 15cm, more preferably from 5 to 10 cm.

In a preferred embodiment, the area of the splice bar not covered by the putty is not less than 70%, more preferably not less than 80%, more preferably not less than 90%, more preferably not less than 95% of the total area of the first surface.

In a preferred embodiment, the area of the splice covering the putty is no more than 30%, more preferably no more than 20%, more preferably no more than 10%, more preferably no more than 5% of the total area of the first surface.

In a preferred embodiment, the strip of putty may extend from the edge of the splice seam in the direction of the taller panel, or may be aligned with the edge of the taller panel at the butt seam and not extend in the direction of the taller panel.

In a preferred embodiment, the splice seam width is no more than 10mm, more preferably no more than 5mm, more preferably no more than 3mm, more preferably no more than 1mm, more preferably no more than 0.5 mm.

In a preferred embodiment, the method of overlaying the fibromuscular network is selected from the group consisting of:

A) the impregnating curing agent is applied over the entire first surface, and the fibrous texture network is applied over the impregnating curing agent surface, over the entire first surface (or hybrid splice surface, i.e.: splicing the surface of the board and the surface of the putty) and allowing the impregnating curing agent to penetrate the fiber texture network;

B) coating an impregnation curing agent on the whole first surface for the first time, covering a fiber texture network on the surface of the impregnation curing agent and the whole first surface, coating the impregnation curing agent on the fiber texture surface for the second time, and allowing the impregnation curing agent coated for the first time and/or the impregnation curing agent coated for the second time to permeate the fiber texture network and contact with each other to form a whole;

C) the fibrous texture network is adhered to the entire first surface by locally applying a binder, and then the fibrous texture network surface is coated with an impregnating curing agent and the impregnating curing agent is allowed to penetrate the fibrous texture network.

On the basis of any of the above options a), B), C), the fibromuscular network is preferably a fibromuscular network with an embossed or printed pattern.

On the basis of any one of the options of A), B) and C), before covering the fiber texture network, the method also comprises the step of coating a base color coating, wherein the base color coating preferably covers the whole first surface.

For example, in one preferred embodiment, the method of overlaying the fibromuscular network is:

coating a first layer of an impregnating curing agent on the whole first surface,

coating a base color coating on the surface of the first layer of the impregnation curing agent, wherein the base color coating covers the whole first surface (covers the surface of the first layer of the impregnation curing agent);

covering the fiber texture network on the surface of the ground color coating layer and the whole first surface, and then coating a second layer of impregnation curing agent; the second layer is impregnated with curing agent, penetrates the fiber texture network, and contacts and is bonded to the base color coating.

The base color coating can be infiltrated or penetrated into the fiber texture network or not.

In a preferred embodiment, the coating impregnation curing agent, the adhesive and the base color coating are respectively and independently selected from a transparent layer, a semitransparent layer or an opaque layer. Preferably, however, the coating and impregnating curing agent, the binder and the base coat layer may each independently contain a pigment.

In a preferred embodiment, the decorative layer surface may be further covered with a second coating (or top coating), and the second coating may be one or more of a second decorative layer and a protective layer.

Wherein, the coating and the infiltration curing agent used for the second coating can be the same or different.

Wherein, the coating used for the second coating can be colored or non-colored, and can be any one of transparent, semi-transparent or opaque coating.

In a preferred embodiment, the materials of the adjacent splice boards can be the same or different, and can be respectively and independently selected from gypsum boards, wood boards, aluminum-plastic boards, plastic-wood boards, cement boards, composite boards, and the like, such as paper-faced gypsum boards, paperless gypsum boards, FC cement boards, euryale boards, thermal insulation composite boards, aluminum-plastic boards, plastic-wood boards, and the like.

In a preferred embodiment, the step of pre-embedding the crack-resistant tape at the splice seam may not be performed before strip-like putty application.

In a preferred embodiment, the method further comprises the step of performing nail hole rust prevention treatment after the strip-shaped putty batch is puttered and before the fiber texture network is covered and the impregnation curing agent is coated.

In a preferred embodiment, the nail hole rust prevention can be performed by the prior art, and preferably can be performed by rust prevention treatment by using rust prevention paint, polymer cement and the like.

In a preferred embodiment, the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers; more preferably, the three-dimensional interpenetrating network structure comprises fibers and interstices between the fibers forming a mesh of intersecting planes.

More preferably, the arrangement of the fibers is three-dimensional and comprises at least horizontal, vertical and inclined fibers.

Still preferably, at least two or three of the horizontal portion, the vertical portion and the inclined portion of each of the at least some fibers exist at the same time; wherein, any one or more of the horizontal part, the vertical part and the inclined part of the fiber are mutually crossed, and/or any one or more of the horizontal part, the vertical part and the inclined part of the fiber are mutually crossed with any one or more of the horizontal part, the vertical part and the inclined part of the fiber.

Preferably, the meshes at least comprise meshes in horizontal, vertical and inclined directions, wherein one or more of the meshes in the horizontal, vertical and inclined directions are mutually communicated with one or more of the meshes in the other horizontal, vertical and inclined directions.

The term "inclined" as used in the above description of the present invention means that the included angle is not 0 degrees with respect to both the horizontal and vertical directions. The "horizontal" is in the horizontal plane and the "vertical" is in the vertical plane. That is, the "horizontal", "vertical" and "inclined" do not belong to the same plane.

The "horizontal parts" in the above-mentioned contents of the present invention may be in the same horizontal plane, or in different horizontal planes; the vertical parts can be in the same vertical plane or different vertical planes; the "inclined direction portions" may be in the same inclined plane, or in different inclined planes.

In a more preferred embodiment of the present invention, the fibers are arranged in multiple layers, the fibers in the same layer define a first mesh, the fibers in each layer at least partially intersect with each other to define a second mesh, and at least a portion of the first mesh and the second mesh are communicated with each other to form a three-dimensional interpenetrating network structure.

In a more preferred embodiment of the present invention, each layer of fibers may be a two-dimensional network structure formed by interweaving warp and weft threads, and/or a two-dimensional network structure formed by arranging fibers in a curved manner.

More preferably, at least some of the fibers are interspersed between at least two of the fibrous layers.

More preferably, the fibers of each layer are arranged in a staggered manner to form meshes in different directions. For example, the fiber intersections of each layer or at least some of the layers are located at the meshes of the other layers, and/or the fibers of each layer or at least some of the layers have a different fiber direction than the other layers.

In a preferred embodiment, the connection points between the fibers of the fiber texture network can be one or more of welding, chemical bonding and the like, and are preferably welding.

In a preferred embodiment, the number of fiber attachment points of the fibromuscular network is preferably 1% to 100%, more preferably at least 10%, more preferably at least 50%, more preferably at least 80%.

In a preferred embodiment, the number of junctions is the number of fiber junctions as a percentage of the number of fiber junctions.

In a preferred embodiment, the diameter of the fibers is preferably 50nm to 5000 μm, preferably 500nm to 1000 μm, more preferably 1 μm to 100 μm, more preferably 1 μm to 50 μm, more preferably 5 μm to 40 μm.

In a preferred embodiment, the thickness of the fibromuscular network is from 0.001mm to 5mm, more preferably from 0.01mm to 3mm, more preferably from 0.05mm to 1mm, more preferably from 0.1mm to 0.5 mm.

In a preferred embodiment, the mesh shape of the fiber texture network is not particularly required, and may be set according to texture requirements. Wherein, the meshes can be uniformly distributed, or the distribution density of the meshes in different areas is different.

In a preferred embodiment, the mesh preferably has a pore size of 50nm to 10mm, more preferably 100nm to 5mm, more preferably 500nm to 3mm, more preferably 5 μm to 2mm, more preferably 50 μm to 1mm, more preferably 0.1mm to 1 mm.

In a preferred embodiment, the density of the fibrillar texture network is preferably 1 to 300g/m²More preferably 3 to 250g/m²More preferably 5 to 200g/m²More, morePreferably 10 to 150g/m²More preferably 20 to 100g/m²More preferably 20 to 50g/m²。

In a preferred embodiment, the fibrous texture network preferably has an elongation at break of 5 to 50%, more preferably 10 to 30%.

In a preferred embodiment, the fiber texture network can be made of metal, plastic, rubber, fiber and the like, and is preferably made of fiber materials, and the fiber can be any one or more of inorganic fiber and organic fiber, and can be any one or more of artificial synthetic fiber, natural fiber (including natural fiber modification), regenerated fiber obtained after natural fiber processing, metal fiber and alloy fiber.

In a more preferred embodiment, the fibers may be selected from: polyamide (nylon 6, nylon 66, etc.), polyimide (such as P84 fiber), polypropylene, polytetrafluoroethylene, polyester (such as PET, PBT, etc.), aramid (such as aramid 1414, aramid 1313, etc., specifically Kevlar, Nomex, Twaron, Technora, Taparan, etc., of dupont), polyphenylene sulfide, etc. But may be glass fiber or the like.

The fiber can also improve rigidity and anti-deformation capability through modification processes such as gum dipping and the like.

The fiber section shape of the fiber texture network can be one or more regular and/or irregular shapes, such as at least one or more of the shapes of circle, ellipse, semicircle, polygon (such as triangle, quadrangle, pentagon and hexagon), pentagram, cashew nut, ripple, dumbbell and the like, and preferably one or more of the shapes of circle and ellipse.

In a preferred embodiment, the fibromuscular network is preferably obtained by one or more of the methods of weaving (including non-woven materials, non-woven techniques), casting, molding, 3D printing, and the like. Particularly preferably by non-woven fabric technology, and/or non-woven textile material technology, such as electrospinning technology and the like.

In a more preferred embodiment, the method for making the fiber texture network comprises the following steps: melt spinning (monocomponent or bicomponent), spraying fiber filaments to be laminated, and then hot pressing to connect the fiber surfaces in the layers. Preferably, bicomponent melt spinning is adopted to form the sheath-core structure fiber, and the inner layer fiber and the interlayer fiber are respectively connected through the sheath layer by hot pressing.

In a preferred embodiment, the putty has a maximum particle size of 300-400 mesh, more preferably 330-360 mesh.

For example, the maximum particle size of the putty is preferably 50 μm or less, and more preferably 30 μm or less.

In a preferred embodiment, the sanding putty can be manually sanded or mechanically sanded. Preferably, the abrasive article used to polish the putty may be sandpaper, abrasives, and other known tools for polishing putty.

In a preferred embodiment, the impregnation curing agent comprises a binder, a solvent and a pigment. More preferably, the impregnation curing agent may further include a functional additive.

More preferably, the binder impregnated with the curing agent may be an organic binder, an inorganic binder, or a combination of an organic binder and an inorganic binder.

Wherein, the organic binder can be any one or more of acrylic emulsion, water-soluble resin, synthetic emulsion resin and re-dispersible latex powder.

Wherein, the inorganic binder can be any one or more of alkali metal silicate and silica sol.

More preferably, the solvent impregnated with the curing agent may be any one or more of water and an organic solvent. Wherein, the organic solvent can be any one or more of available alcohol, aldehyde, ether, aromatic hydrocarbon, halogenated aliphatic hydrocarbon and ester.

More preferably, the functional additive impregnated with the curing agent can be any one or more of a defoaming agent, an antifreeze agent, a film forming aid, a sterilization and mildew prevention agent, a dispersing agent, a thickening agent, a water retention agent, a preservative, a slipping agent, a water reducing agent, a phase change energy storage additive and a heat preservation and insulation additive.

More preferably, the pigment impregnated with the curing agent may be a decorative pigment providing decorative color and effect, or may be a decorative pigment and a decorative filler providing decorative color and effect, such as any one or more of titanium white (white), inorganic mineral pigment, organic synthetic pigment, inorganic mineral particle, organic synthetic color particle, metal particle, and colored glass particle.

In the above-mentioned context of the present application, the impregnation curing agent may be dry powder particles, or may be particles dispersed and suspended in a liquid dispersion medium. Preferably, the impregnation curing agent is an aqueous curing agent.

Preferably, the liquid dispersion medium is water, or an organic solvent, or a mixture of water and an organic solvent, but more preferably is water.

More preferably, the impregnation curing agent is preferably a nano-sized curing agent or a nano/non-nano composite-sized curing agent. And preferably, the average particle diameter of the impregnation curing agent is preferably 5 to 500nm, more preferably 10 to 300nm, more preferably 15 to 150nm, and more preferably 20 to 80 nm.

In the above-mentioned content of the present application, the impregnation curing agent may be any one or more of a combination of light curing, reaction curing, dehydration curing, and heat curing.

In the above-mentioned context of the present application, the impregnation curing agent may be a transparent, translucent, or opaque curing agent, or the impregnation curing agent may be transparent, translucent, or opaque after curing.

In the above-mentioned context of the present application, the impregnation curing agent may be colorless or colored when used and/or after curing, and preferably, the color may be a single color or a plurality of colors.

It should be understood that the single color may be white, or other color; the multiple colors may be a combination of colors (e.g., the colors exist independently of one another), or a mixture of colors (e.g., the colors are mixed into one or more colors)

The color of the impregnating curing agent during use and/or after curing and the color of the putty can be the same or different or partially the same.

More preferably, the impregnation curing agent includes a pigment, which may be one or more. Preferably, the more pigments may be compatible, partially compatible or incompatible.

In the above content of the present application, the impregnation curing agent may be a single-component curing agent or a multi-component curing agent, and may be at least partially infiltrated and permeated into the putty layer, so as to enhance the putty layer.

In the above-mentioned context of the present application, the viscosity of the impregnation curing agent is preferably <3000CPS, more preferably <1000CPS, more preferably <500 CPS.

Compared with the prior art, the technical scheme of the invention has the following beneficial effects:

1. this application only need criticize putty at concatenation seam and peripheral region, can no longer use putty by the decorative cover main zone, reduces the putty quantity by a wide margin to the work of making level of polishing of putty has been reduced by a wide margin.

2. The application unifies the texture structure of the surface tissue of the material, and solves the problem that the mixed base surface formed by various plates and joint filling materials can not be coated with paint, namely: because the materials are different and the textures are different, the generated water absorption, surface textures and light reflection properties are different, and the color difference, the visual difference and the uniformity of the textures of the surface brushing coating are influenced. The paint brushed on the surface can be more uniform in color and texture.

3. Compared with the traditional construction method of putty scraping on an anti-cracking net or an anti-cracking belt and coating, the anti-cracking composite coating with 360 degrees in a plane is formed, and compared with the traditional construction method of coating, the anti-cracking composite coating with 360 degrees in a plane has no putty layer on an anti-cracking fiber structure, and meanwhile, the coating not only permeates fiber textures, but also has a thinner coating, is more flexible, has 360-degree anti-strain capacity, and greatly improves the anti-cracking performance of the coating.

4. In the technical scheme of the application, the anti-crack decorative surfaces with various performances and styles can be prepared by adjusting the material performance of the impregnating curing agent, the material performance of the optional second coating and the fancy and texture of the fiber texture network.

In conclusion, the technical scheme of the application can achieve the technical effects of green, low carbon, environmental protection, energy conservation, material conservation and carbon reduction.

Drawings

Fig. 1 is a photograph of a veneer effect obtained on a spliced plate according to the prior art.

Fig. 2 is a photograph of the effect of the veneer obtained by the present application on the same tailored board as in fig. 1.

FIGS. 3-1 and 3-2 are schematic cross-sectional views of batch puttying at a splice seam of a splice board having a height difference according to the present application; fig. 3-3 is a schematic top view of the batch putty.

Fig. 4-13 are graphs of different coating effects made using an embossed or printed pattern fibrous texture network. Fig. 14 and 15 are schematic views of the fiber texture network profile and the spinning structure of the present application.

Detailed Description

The largest decoration difficulty of the fabricated building is that 1, the plates are difficult to ensure completely uniform materials, sizes, colors and roughness, and 2, the plates are difficult to ensure that the decoration surfaces of all the plates are positioned at the same height or in the same plane during splicing, so that the spliced plates are allowed to have certain deviation according to GB50210-2018 acceptance Standard for quality of architectural decoration and finishing engineering, wherein the height difference of adjacent spliced plates at a joint is generally 1-1.5 mm. Such large deviations are a great technical problem for surface decoration. Because of the height difference, the reflection of light is greatly different, and even if the decoration is carried out by opaque white paint, the color difference is serious because of the light problem, as shown in figure 1. In addition, the boards have different water absorption rates, different roughness and different ground colors, and the paint can also form different colors and textures on the surfaces of the boards.

The applicant has surprisingly found that in the case of a difference in height between the panels being joined of not more than 5mm, such as 1-5mm, more preferably 1-3mm, with reference to fig. 3-1 and 3-2, at the joint between the first panel 1 and the second panel 2, the putty is extended towards the lower surface of the second panel 2 by means of a strip of putty 3, which putty surface 30, after being applied, is ground to a smooth surface (but allows a roughness of not less than 1 μm, such as 1-200 μm), the putty surface 30 may be a surface sloping from the first panel 1 towards the second panel 2, sloping and smoothly transitioning into the surface of the second panel 2, or a layer of putty not more than 100 μm at the edge of the second panel surface, following the first surface consisting of the first panel surface 10 and the second panel surface 20 (if there are more panels, the first surface is composed of the surfaces of the splice plates for decoration, and the surfaces of the splice plates are sequentially spliced one by adopting the putty in the above mode).

The height difference of the spliced plates is h, the extending distance of the putty surface 30 to the lower first plate is L, h/L is generally less than or equal to 10 percent, more preferably less than or equal to 6 percent, more preferably less than or equal to 5 percent, more preferably less than or equal to 4 percent, more preferably less than or equal to 3 percent, more preferably less than or equal to 2 percent, and the problem of color and texture unevenness can be solved by covering the outer part with a coating formed by an infiltration curing agent and a fiber texture network.

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The plate building is formed by assembling prefabricated large-scale inner and outer wall plates, floor plates, roof plates and other plates, all the splicing plates are fixedly connected through keels, and in the process, height difference exists between all the splicing plates, so that the height difference cannot be avoided.

Referring to fig. 3-1, 3-2 and 3-3, the height difference h between the first splice plate 1 and the second splice plate 2 with the width of 1.2m is 1mm, the splice seam is 0.5mm, and on the splice surface formed by splicing the two plates, along the splice seam of the spliced plates, the strip putty is scraped 3 and the splice seam is filled. The putty 3 extends towards the surface 20 of the lower second splice plate 2 by an extension distance L of 10cm, the top surface of the putty 3 at the splice seam being flush with the upper first splice plate surface 10 and then sloping towards the second splice plate surface to form a sloping surface 30, the height at the edge of the second splice plate surface 20 not exceeding 100 μm, thereby conforming to the first surface (i.e. the splice plate surface and the putty surface, or the surface intended for decoration).

And polishing and flattening the strip batch scraped putty 3.

And (3) coating an infiltration curing agent on the whole mixed splicing surface (the surface of the splicing plate and the surface of putty, the same below), covering the fiber texture network on the surface of the infiltration curing agent and the whole mixed splicing surface, coating the infiltration curing agent again, enabling the infiltration curing agent to infiltrate and penetrate the fiber texture network, the putty, the surface and the interior of the plate, and enabling the two layers of the infiltration curing agents to contact into a whole to form a decorative layer.

Wherein the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers, and referring to fig. 14-15, the three-dimensional interpenetrating network structure comprises fibers 5 and three-dimensional crossed meshes 4 formed by gaps among the fibers. Referring to fig. 15, in the same plane, the transverse fibers cross the longitudinal fibers and the oblique fibers, and the crossed fibers form a mesh. Referring to fig. 14, the intersections between the fibers are at least partially connected together to form connection points, for example, the connection points may be one or more of welding, chemical bonding, and the like, and in this embodiment, welding is preferred. In this embodiment, the number of the fiber connection points may be 80% of the number of the fiber crossing points, the diameter of the fiber may be 100 μm, the pore size of the fiber texture network may be 0.5mm, and the density may be 50g/m²Elongation at break 20%.

Transverse meshes 52 are formed between the transverse fibers 41 in the upper horizontal plane and the transverse fibers 42 in the lower horizontal plane, longitudinal meshes 51 are formed between the transverse fibers and the vertical fibers 43 in the vertical plane, and the transverse meshes 52 are communicated with the longitudinal meshes 51. Similarly, between the transverse fibers 41 and the obliquely oriented fibers, and between the vertical fibers 43 and the obliquely oriented fibers, obliquely oriented meshes 53 are formed, respectively, and fig. 14 shows a case where two obliquely oriented meshes 53 are communicated, but the obliquely oriented meshes 53 may be communicated with the transverse meshes 52 and/or the longitudinal meshes 51.

After drying, the obtained decorative effect is shown in fig. 2, and although the original splice plate has obvious height difference, the visual difference, color difference and texture difference do not exist in the decorative effect.

Example 2

Referring to fig. 3-1, 3-2 and 3-3, the height difference h between the first splice plate 1 and the second splice plate 2 with the width of 1.2m is 2mm, the splice seam is 0.5mm, and on the splice surface formed by splicing the two plates, along the splice seam of the spliced plates, the strip putty is scraped 3 and the splice seam is filled. Putty 3 extends to lower second splice plate 2's surface 20, forms extension distance L ═ 10cm, and putty 3 top surface and higher first splice plate surface 10 parallel and level in splice seam department, then connects the surface slope to the second splice and forms inclined surface 30, and the height is no more than 100 μm at the edge of second splice plate surface 20 to connect in the same direction as first surface.

And polishing and flattening the strip batch scraped putty 3.

And (3) coating an impregnation curing agent on the whole mixed splicing surface in a spot mode, adhering and covering the fiber texture network on the surface of the impregnation curing agent and the whole mixed splicing surface, and rolling the fiber texture network to enable the impregnation curing agent to infiltrate and penetrate the fiber texture network, the putty and the surface of the plate to form a decorative layer.

Wherein the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers, and referring to fig. 14-15, the three-dimensional interpenetrating network structure comprises fibers 5 and three-dimensional crossed meshes 4 formed by gaps among the fibers. Referring to fig. 15, in the same plane, the transverse fibers cross the longitudinal fibers and the oblique fibers, and the crossed fibers form a mesh. Referring to fig. 14, the intersections between the fibers are at least partially connected together to form connection points, for example, the connection points may be one or more of welding, chemical bonding, and the like, and in this embodiment, welding is preferred. In this embodiment, the number of fiber junctions may be 80% of the number of fiber intersections, the diameter of the fiber may be 150 μm, and the texture of the fiber may beThe aperture of the network is 0.5mm, and the density is 100g/m²And elongation at break 35%.

Although the original splice plates have obvious height difference, visual difference, color difference and texture difference do not exist in the decoration effect. In this embodiment, the fiber texture network is further embossed to obtain embossed textures, and after drying, the decorative effect is shown in fig. 10 and 11 according to different embossed textures.

Example 3

Referring to fig. 3-1, 3-2 and 3-3, the height difference h between the first splice plate 1 and the second splice plate 2 with the width of 1.2m is 1.5mm, the splice seam is 0.5mm, and on the splice surface formed by splicing the two plates, the splice seam is filled with strip putty 3 along the splice seam of the splice plate. Putty 3 extends to lower second splice plate 2's surface 20, forms extension distance L ═ 8cm, and putty 3 connects the surface slope formation inclined surface 30 to second splice plate surface 20's edge height at second splice plate surface 20 no more than 100 mu m with higher first splice plate surface 10 parallel and level in splice seam department.

And polishing and flattening the strip batch scraped putty 3.

Coating a first layer of infiltration curing agent on the whole mixed splicing surface, coating a ground color coating to cover the first layer of infiltration curing agent, covering a fiber texture network on the surface of the ground color coating and the surface of the whole first layer of infiltration curing agent (covering the mixed splicing surface), coating a second layer of infiltration curing agent, and enabling the second layer of infiltration curing agent to infiltrate and penetrate the fiber texture network and the surface of the ground color coating to form the decorative layer.

Wherein the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers, and referring to fig. 14-15, the three-dimensional interpenetrating network structure comprises fibers 5 and three-dimensional crossed meshes 4 formed by gaps among the fibers. Referring to fig. 15, in the same plane, the transverse fibers cross the longitudinal fibers and the oblique fibers, and the crossed fibers form a mesh. Referring to fig. 14, the intersections between the fibers are at least partially connected together to form connection points, for example, the connection points may be one or more of welding, chemical bonding, and the like, and in this embodiment, welding is preferred. In this embodiment, the number of the fiber connection points may be 85% of the number of the fiber crossing points, the diameter of the fiber may be 50 μm, the pore size of the fiber texture network may be 0.5mm, and the density may be 30g/m²Elongation at break 30%.

Although the original splice plates have obvious height difference, visual difference, color difference and texture difference do not exist in the decoration effect. After drying, the decorative effect obtained is shown in fig. 12.

Example 4

Referring to fig. 3-1, 3-2 and 3-3, a height difference h between the first splice plate 1 and the second splice plate 2 with a width of 1.2m is 1mm, a splice seam is 0.5mm, and on a splice surface (first surface) formed by splicing two plates, along the splice seam of the splice plate, putty is scraped in a strip shape 3 to fill the splice seam. Putty 3 extends to lower second splice plate 2's surface 20, forms extension distance L ═ 5cm, and putty 3 connects the surface slope formation inclined surface 30 to second splice plate surface 20's edge height at second splice plate surface 20 no more than 100 mu m with higher first splice plate surface 10 parallel and level in splice seam department.

And polishing and flattening the strip batch scraped putty 3.

The fiber texture network is adhered to the whole mixed splicing surface by locally coating the binder, then the impregnation curing agent is coated on the surface of the fiber texture network, the impregnation curing agent covers the whole mixed splicing surface, and the impregnation curing agent is made to penetrate through the fiber texture network, the putty and the surface of the plate to form the decorative layer.

Wherein the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers, and referring to fig. 14-15, the three-dimensional interpenetrating network structure comprises fibers 5 and three-dimensional crossed meshes 4 formed by gaps among the fibers. Referring to fig. 15, in the same plane, the transverse fibers cross the longitudinal fibers and the oblique fibers, and the crossed fibers form a mesh. Referring to fig. 14, the intersections between the fibers are at least partially connected together to form connection points, for example, the connection points may be one or more of welding, chemical bonding, and the like, and in this embodiment, welding is preferred. In this embodiment, the number of the fiber connection points may be 90% of the number of the fiber crossing points, the diameter of the fiber may be 50 μm, the pore size of the fiber texture network may be 0.2mm, and the density may be 30g/m²Elongation at break was 40%.

Although the original splice plates have obvious height difference, visual difference, color difference and texture difference do not exist in the decoration effect. This example uses a network of fibers with printed patterns, and the decorative effect obtained after drying according to the different printed patterns is shown in fig. 5-9 and 13.

Example 5

Referring to fig. 3-1, 3-2 and 3-3, a height difference h between the first splice plate 1 and the second splice plate 2 with a width of 1.2m is 3mm, a splice seam is 0.5mm, and on a splice surface (first surface) formed by splicing two plates, along the splice seam of the splice plate, putty is scraped in a strip shape 3 to fill the splice seam. Putty 3 extends to lower second splice plate 2's surface 20, forms extension distance L ═ 15cm, and putty 3 connects the surface slope formation inclined surface 30 to second splice plate surface 20's edge height at the first surface of second splice plate that the top surface is the parallel and level with higher first splice plate surface 10 at the splice seam, thereby does not exceed 100 mu m, thus connect the first surface.

And polishing and flattening the strip batch scraped putty 3.

Coating a first layer of impregnation curing agent on the whole mixed splicing surface, coating a ground color coating to cover the first layer of impregnation curing agent, covering a fiber texture network on the surface of the ground color coating and covering the whole mixed splicing surface (the first layer of impregnation curing agent), coating a second layer of impregnation curing agent, enabling the second layer of impregnation curing agent to infiltrate and penetrate the fiber texture network, putty and the surface of the ground color coating, and coating a colored top coating to form a decorative layer.

Wherein the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers, and referring to fig. 14-15, the three-dimensional interpenetrating network structure comprises fibers 5 and three-dimensional crossed meshes 4 formed by gaps among the fibers. Referring to fig. 15, in the same plane, the transverse fibers cross the longitudinal fibers and the oblique fibers, and the crossed fibers form a mesh. Referring to fig. 14, the intersections between the fibers are at least partially connected together to form connection points, for example, the connection points may be one or more of welding, chemical bonding, and the like, and in this embodiment, welding is preferred. In this embodiment, the number of the fiber connection points may be 80% of the number of the fiber crossing points, the diameter of the fiber may be 70 μm, the pore size of the fiber texture network may be 0.8mm, and the density may be 40g/m²And elongation at break 8%.

Although the original splice plates have obvious height difference, visual difference, color difference and texture difference do not exist in the decoration effect. After drying, the decorative effect obtained is shown in fig. 4.

Comparative example 1

The height difference h between the first splicing plate 1 and the second splicing plate 2 with the width of 1.2m is 1mm, and the splicing seam is 0.5 mm.

The traditional method is adopted: splicing and installing gypsum boards, processing splicing seams (embedding crack-resistant belts and filling putty), performing nail hole rust prevention treatment, uniformly scraping putty on the surface of a board (including the board seams/splicing seams), polishing the putty to be flat, coating a bottom coating, and coating a top coating.

Comparative example 2

According to the construction method disclosed by CN109826341A, gypsum is embedded into the plane splicing seam, the gypsum is 2-3mm higher than the plane splicing seam, then a splicing tape is attached, the splicing tape is compacted and scraped, and then the splicing gypsum is scraped in batches. And coating the paint after polishing and flattening.

Comparative example 3

The coating of CN113150584A is adopted, and no putty filling is used.

And (3) cracking test: the splice plate is used as a house ceiling, the house is vacant, and observation is carried out in a natural state, the test of the embodiment and the test of the comparative example 1 are carried out for five years, and the test of the comparative example 2 is carried out for about 2.5 years.

The embodiments of the present invention have been described in detail, but the present invention is only by way of example and is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, it is intended that all equivalent alterations and modifications be included within the invention, without departing from the spirit and scope of the invention.

Claims

1. The manufacturing method of the split-resistant veneer of the spliced plate is characterized by comprising the following steps of:

covering a fiber texture network on the whole first surface and coating an infiltration curing agent, wherein the fiber texture network and the infiltration curing agent simultaneously cover a putty covering area and a putty uncovered area of the first surface; infiltrating the curing agent, infiltrating the curing agent to penetrate through the fiber texture network, infiltrating and infiltrating to the surface of the putty and the plate, or infiltrating and infiltrating to the interior of the putty and/or the plate to form a decorative layer;

wherein the height difference of the adjacent spliced plates on the first surface is not more than 5 mm;

the fiber texture network contains a three-dimensional interpenetrating network structure formed by fibers, and the three-dimensional interpenetrating network structure comprises the fibers and three-dimensional crossed meshes formed by gaps among the fibers.

2. The method according to claim 1, wherein the height difference may be no more than 3mm, more preferably the height difference may be no more than 2 mm; preferably, the height difference is greater than or equal to 0.5mm, and more preferably, the height difference is greater than or equal to 1 mm.

3. The method according to claim 1, wherein said conforming to the first plane means that the putty edge in strip form does not exceed a maximum thickness of 100 μm, more preferably 50 μm, more preferably 20 μm; however, it is permissible that the thickness is 1 μm or more, more preferably 5 μm or more, still more preferably 10 μm or more, still more preferably 20 μm or more.

4. A method according to claim 1 or 3, wherein the strip of putty is extended from the edge of the splice seam over an extension distance in the direction of the lower panel, forming an inclined extension; the height difference between the adjacent splicing plates is not more than 10%, more preferably not more than 5%, more preferably not more than 4%, more preferably not more than 2% of the extension distance;

more preferably, the strip of putty extends from the edge of the splice seam towards the lower panel for a distance of preferably no more than 15cm, more preferably 3-15cm, more preferably 5-10 cm.

5. A method according to claim 1, wherein the area of the splice bar not covered by the putty is not less than 70%, more preferably not less than 80%, more preferably not less than 90%, more preferably not less than 95% of the total area of the first surface;

the area of the splice covering the putty is no more than 30%, more preferably no more than 20%, more preferably no more than 10%, more preferably no more than 5% of the total area of the first surface.

6. The method of claim 1, wherein the method of overlaying the fibromuscular network is selected from the group consisting of:

A) coating the impregnating curing agent on the whole first surface, covering the fiber texture network on the surface of the impregnating curing agent and the whole first surface, and enabling the impregnating curing agent to permeate the fiber texture network;

7. The method of claim 1 or 6, further comprising the step of applying a base coat layer, prior to covering the fibrous texture network, the base coat layer covering the entire first surface; and/or

The surface of the decorative layer can also be covered with a second coating, and the second coating can be one or more of a second decorative layer and a protective layer.

8. The method of claim 1, wherein the arrangement of fibers is a three-dimensional distribution including at least fibers in horizontal, vertical, and oblique directions;

at least two or three of the horizontal part, the vertical part and the inclined direction part exist in each fiber at the same time in at least part of the fibers; wherein, any one or more of the horizontal part, the vertical part and the inclined part of the fiber are mutually crossed, and/or any one or more of the horizontal part, the vertical part and the inclined part of the fiber are mutually crossed with any one or more of the horizontal part, the vertical part and the inclined part of another fiber or a plurality of fiber;

the meshes at least comprise meshes in horizontal, vertical and inclined directions, wherein one or more of the meshes in the horizontal, vertical and inclined directions are mutually communicated with one or more of the meshes in the other horizontal, vertical and inclined directions;

the number of fiber attachment points of the fibrous texture network core is preferably 1% to 100%, more preferably at least 10%, more preferably at least 50%.

9. The method of claim 8,

the diameter of the fibers is preferably 50nm to 5000 μm, preferably 500nm to 1000 μm, more preferably 1 μm to 100 μm, more preferably 1 μm to 50 μm, more preferably 5 μm to 40 μm; the thickness of the fibromuscular network is 0.001mm to 5mm, more preferably 0.01mm to 3mm, more preferably 0.05mm to 1mm, more preferably 0.1mm to 0.5 mm;

the aperture of the mesh is preferably 50nm-10mm, more preferably 100nm-5mm, more preferably 500nm-3mm, more preferably 5 μm-2mm, more preferably 50 μm-1mm, more preferably 0.1mm-1 mm;

the density of the fibrous texture network sandwich is preferably 1-300g/m²More preferably 3 to 250g/m²More preferably 5 to 200g/m²More preferably 10 to 150g/m²More preferably 20 to 100g/m²More preferably 20 to 50g/m²；

The fibrous texture network preferably has an elongation at break of 5 to 50%, more preferably 10 to 30%.

10. The spliced board anti-cracking veneer manufactured by the method according to claim 1, which comprises spliced boards, wherein a strip-shaped putty layer is scraped along the splicing seams of the spliced boards on the splicing surfaces formed by splicing the boards, and the putty surfaces of the strip-shaped putty layers are inclined from the surfaces of the higher spliced boards to the surfaces of the lower spliced boards to form inclined planes at the splicing seams of the adjacent spliced boards with height difference, so that the first surfaces are jointed; the whole first surface is covered with a decorative layer comprising a fiber texture network and an impregnation curing agent, wherein the impregnation curing agent is infiltrated and permeated through the fiber texture network, infiltrated and permeated to the surface of the putty and the plate, or infiltrated and permeated to the interior of the putty and/or the plate to form the decorative layer.