CN113882610A - Antistatic bamboo wood decorative board - Google Patents

Antistatic bamboo wood decorative board Download PDF

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Publication number
CN113882610A
CN113882610A CN202111349684.2A CN202111349684A CN113882610A CN 113882610 A CN113882610 A CN 113882610A CN 202111349684 A CN202111349684 A CN 202111349684A CN 113882610 A CN113882610 A CN 113882610A
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China
Prior art keywords
antistatic
bamboo
wood
layer
wood substrate
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Pending
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CN202111349684.2A
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Chinese (zh)
Inventor
钟元桂
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Huaihua Dalong Agricultural Technology Co ltd
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Huaihua Dalong Agricultural Technology Co ltd
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Priority to CN202111349684.2A priority Critical patent/CN113882610A/en
Publication of CN113882610A publication Critical patent/CN113882610A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0875—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements having a basic insulating layer and at least one covering layer
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    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
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    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • B32B7/04—Interconnection of layers
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    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
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    • E—FIXED CONSTRUCTIONS
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    • E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
    • E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
    • E04F2290/048—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against static electricity

Abstract

The antistatic bamboo-wood decorative plate is formed by splicing a plurality of veneers, wherein each veneer comprises a bamboo panel and a wood substrate, the bamboo panel is subjected to antistatic treatment, a surface layer is formed on the surface of the wood substrate, and through holes arranged in a lattice manner are formed on the wood substrate and the surface layer; a composite antistatic layer is formed between the bamboo panel and the wood substrate and comprises an insulating sheet and an insulating filling layer; the insulating sheet is formed by uniformly mixing bisphenol A polycarbonate, polyacrylonitrile and filler powder and then extruding; the insulating filling layer is formed by filling antistatic PVC resin, and is filled in the through holes in the wood substrate and the interface layer in a pressurized manner during forming. The bamboo-wood decorative plate is integrally formed by solid wood and bamboo materials, has the texture of natural bamboo in appearance, has better surface texture and has excellent antistatic performance.

Description

Antistatic bamboo wood decorative board
Technical Field
The invention relates to a bamboo decorative plate in the field of building materials, in particular to an antistatic bamboo decorative plate with decorative effect and antistatic property.
Background
The bamboo wood is used as a fast-growing wood, has the advantages of low cost and easily obtained raw materials, is widely applied to daily production and life of people, and is a building decoration material as one of main applications, wherein the wall decoration plate prepared by taking the bamboo wood material as the base material has the advantages of light weight, simplicity and convenience in construction, good decoration effect, low manufacturing cost, convenience in maintenance and the like compared with the traditional stone wall decoration plate.
The main required performance of the traditional wall decoration board is decoration performance, and along with the expansion of different application scenes and the continuous improvement of requirements of people on the decoration material, the wall decoration board not only has decoration effect, but also needs to have certain functions, such as flame retardance, environmental protection, sound insulation and the like, and in the fields of industry, laboratories and precise equipment space, the anti-static performance also needs to be considered, such as electromagnetic waves generated during electrostatic discharge can interfere the work of a precise electronic instrument, and even cause the false operation of automatic electronic equipment; the accumulation of electrostatic charges can cause dust on related medical equipment to cause electrical tremor accidents and bacteria on medical instruments to cause infection risks; the integrated circuit is easy to damage in a computer room or a control room; the fiber aggregation phenomenon and the like are caused in a textile laboratory, and thus the veneer in the above scenario also requires a better antistatic property. In addition, the plate with the antistatic effect also has the advantages of difficult dust collection and easy cleaning of the surface, and convenient cleaning and daily maintenance.
For the reasons, some decorative plates with antistatic function are available on the market, but most of the decorative plates are resin plates, and some composite decorative plates are prepared by adding bamboo wood powder, stone powder additives and various additives into resin in a barrel, and plasticizing and extruding the resin through stirring at high temperature; the antistatic dalle with wood and bamboo timber integrated into one piece is few in the market, and passes through the mode of surperficial shaping antistatic coating or wainscot and obtain antistatic effect more, and its effect is relatively poor, and along with the increase of service life, its antistatic effect can obviously descend.
For the reasons, the bamboo decorative board with better antistatic performance is developed to resist the accumulation of indoor static electricity, so that the bamboo decorative board has better economic value and social value.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an antistatic bamboo decorative board, which has better waterproof performance and energy-saving performance and can be used for solving the defects in the background technology.
The technical problem solved by the invention is realized by adopting the following technical scheme:
an antistatic bamboo-wood decorative plate comprises a plurality of veneers for splicing; the single board is a composite single board and comprises a bamboo panel and a wood substrate, wherein the bamboo panel is subjected to antistatic treatment, a surface layer is formed on the surface of the wood substrate, the surface layer is formed by uniformly mixing calcium silicate powder and eucalyptus wood powder according to the mass ratio of 3:1, then mixing an adhesive, and then spraying the mixture on the surface of the wood substrate for forming, and through holes arranged in a lattice manner are formed on the wood substrate and the surface layer;
a composite antistatic layer is formed between the bamboo panel and the wood substrate, and the composite antistatic layer comprises an insulating sheet arranged on the side of the bamboo panel and an insulating filling layer formed on the side of the wood substrate; the insulation sheet is formed by uniformly mixing bisphenol A polycarbonate, polyacrylonitrile and filler powder and then extruding, wherein the filler powder is mixture powder of white carbon black, silver nitrate and titanium dioxide, and the mass ratio of the white carbon black in the mixture powder is not lower than 60%; the insulating filling layer is formed by filling antistatic PVC resin, and is filled in the through holes on the wood substrate and the interface layer in a pressurized manner during forming.
And as further limitation, the single plates are rectangular plates, splicing parts for splicing the two single plates are formed on the short sides of the two sides of the single plates, and the splicing parts are finger-joint splicing parts or plug-joint splicing parts.
As a further limitation, the bamboo panel is a bamboo panel with the water content of 8-10%.
As a further limitation, the thickness of the bamboo panel is 2-3 mm.
As a further limitation, the bamboo panel is subjected to antistatic treatment by using an antistatic agent for antistatic impregnation treatment, wherein the antistatic agent is a hydroxylamine antistatic agent or a quaternary ammonium sulfonate antistatic agent;
as a dipping treatment method: taking 70-75 wt% of ethanol water solution as a solvent, adding an antistatic agent, preparing the antistatic agent water solution with the mass concentration of 18-25 wt%, adding polyvinylpyrrolidone with the mass concentration of 1-3 wt% of the solvent, silver nitrate with the mass concentration of 0.7-0.9 wt% of the solvent and conductive carbon black with the mass concentration of 3-5 wt% of the solvent, uniformly dispersing, heating to 50-70 ℃, immersing the bamboo panel, performing immersion treatment for 36-48 hours, and drying to obtain the bamboo panel subjected to antistatic treatment;
in the dipping process, ultrasonic assistance is carried out by ultrasonic equipment under the conditions of 1500-3000W of power and 45-60 KHz of frequency, and the dipping treatment time can be shortened to 5-8 h.
As another impregnation treatment method: the preparation method comprises the steps of mixing polyvinyl chloride resin and epoxy resin according to the mass ratio of 2: 3-1: 1, uniformly dispersing to obtain a resin material, then adding an antistatic agent accounting for 7-9 wt% of the resin material, antimony trioxide accounting for 1-3 wt% of the resin material, and polyquaternium 80 or polyquaternium 126 accounting for 3-5 wt% of the resin material, uniformly dispersing by using a dispersion kettle, adding the resin material into a vacuum impregnation tank, controlling the impregnation pressure of the impregnation tank to be 0.05-0.07 MPa, carrying out vacuum impregnation treatment on a bamboo panel, and carrying out thermosetting after the impregnation treatment is carried out for 45-90 min to obtain the antistatic treated bamboo panel.
By way of further limitation, the surface of the bamboo panel is provided with a primer layer, and the surface of the primer layer is coated with an antistatic UV finishing coat.
As a further limitation, the thickness of the wood substrate is 5-12 mm, and the wood substrate is one of a solid wood board, a flakeboard, a plywood and a density board.
The thickness of the interface layer is further limited to 500-800 μm.
As a further limitation, the through hole is a funnel-shaped through hole, and the aperture of the funnel-shaped through hole on the interface layer side is larger than that of the wood substrate side, so that the composite antistatic layer can be conveniently and completely filled and molded in the through hole.
By way of further limitation, the usage ratio of the bisphenol A polycarbonate to the polyacrylonitrile in the insulating sheet is 7: 3-9: 1; and the using amount of the filler powder is 8-15% of the sum of the mass of the bisphenol A polycarbonate and the mass of the polyacrylonitrile.
Further, the weight gain of the wood-based board after pressure filling by the insulating filling layer is 15 to 25%.
By further limitation, the thickness of the insulating sheet in the composite antistatic layer is 0.8-1.5 mm; and the thickness of the insulating filling layer is 3-4 mm.
Has the advantages that: the antistatic bamboo-wood decorative plate disclosed by the invention has high utilization rate of wood and bamboo, the bamboo panel serving as the surface layer is subjected to dipping treatment, the mechanical property and the dimensional stability are obviously improved, and the bamboo panel has certain fireproof performance and better antistatic performance, and the dipped bamboo panel has natural color and no color difference, so that the bamboo-wood decorative plate has natural bamboo grains; the bottom layer takes the wood substrate as a substrate, so that the bamboo-wood decorative board is light and strong in weight and has better heat preservation, impact resistance and durability; simultaneously, can effectively solve traditional decorative board through setting up compound antistatic layer and gather the defect of static easily, can be used to clean the antistatic wall of key regions such as factory building, laboratory, computer lab, hospital and mat formation.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Wherein: 1. a wood substrate; 2. a through hole; 3. an interfacial layer; 4. an insulating filling layer; 5. an insulating sheet; 6. a bamboo panel; 7. a primer layer; 8. antistatic UV finish paint layer.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the technical solutions required to be used in the description of the embodiments will be briefly introduced below, it is obvious that the technical contents in the following description are only some embodiments of the present invention, and for those skilled in the art, other derivative technical solutions can be obtained according to the technical contents without creative efforts, and the technical solutions also belong to the protection scope of the present invention.
In the following examples, it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
The bamboo-wood decorative plate manufactured by the technical scheme of the invention is spliced and formed by a plurality of veneers, the splicing mode is similar to that of wood floors and other wood wallboards, the splicing structure is a finger-joint splicing structure or a plug-joint splicing structure formed on the short edges of the two sides of the veneer, the forming modes of the two splicing structures are similar, the strength and the service performance of the formed bamboo-wood decorative plate are also close, and the embodiment of the veneer used for splicing has the structural characteristics as shown in figure 1.
Referring to fig. 1, a schematic structural diagram of an antistatic bamboo-wood decorative board, which includes a wood substrate 1, a composite antistatic layer and a bamboo panel 6, in an embodiment, the thickness of the wood substrate 1 is 5-12 mm, and is one of a solid wood board, a shaving board, a plywood and a density board, while the wood substrate 1 of different materials only affects the physical strength performance of the formed bamboo-wood decorative board, the right side of the wood substrate 1 is a mounting side of a wall surface, the wood substrate 1 is mounted on the wall surface through an adhesive on the side, a boundary layer 3 is formed on the left side surface of the wood substrate 1, the thickness of the boundary layer 3 is 500-800 μm, the boundary layer 3 is formed by uniformly mixing calcium silicate powder and eucalyptus wood powder according to a mass ratio of 3:1, then mixing the adhesive, then spraying the adhesive on the surface of the wood substrate for forming, a plurality of through holes 2 arranged in a lattice manner are formed on the boundary layer 3 and the wood substrate 1, the cross section of the through holes 2 is funnel-shaped, and the hole diameter decreases continuously from the interface layer 3 side to the wood substrate 1 side.
The composite antistatic layer is formed on the left side of the interface layer 3 and comprises an insulating sheet 5 and an insulating filling layer 4, and the thickness of the insulating sheet 5 is 0.8-1.5 mm; the thickness of the insulating filling layer 4 is 3-4 mm, the insulating filling layer 4 is filled on the surfaces of the wood substrate 1 and the interface layer 3 through pressurization during molding, the whole through hole 2 is filled after pressurization, and the weight gain rate of the wood substrate 1 after filling molding is 15-25% by controlling the aperture and the hole interval of the through hole 2
The bamboo panel 6 is arranged on the surface of the insulating sheet 5, the bamboo panel 6 is subjected to antistatic treatment, the thickness of the bamboo panel is 2-3 mm, and the comprehensive water content is 8-10%; in order to improve the surface decoration of the antistatic bamboo decorative board and further improve the antistatic performance of the surface, the surface of the bamboo panel 6 is sequentially formed with two-component electrostatic UV paint with a primer layer 7 and an antistatic UV finish paint layer 8.
In order to further explain the technical content of the antistatic bamboo-wood decorative board and the performance of the formed bamboo-wood decorative board, the following three groups of examples are specifically listed; for the sake of comparing the properties, the primer layer 7 and the antistatic UV top coat layer 8 of the two-component electrostatic UV paint are removed for the description of the properties in the following three examples:
the first embodiment is as follows:
in the first embodiment, the antistatic bamboo decorative board is prepared by the following steps:
firstly, preparing a wood substrate 1, uniformly mixing calcium silicate powder and eucalyptus wood powder according to the mass ratio of 3:1, mixing the mixture into an epoxy adhesive according to the mass ratio of 3:1, then using a solid wood board with the thickness of 10mm as the wood substrate 1, thinly coating the mixed adhesive on the surface of the wood substrate 1, controlling the coating thickness of the adhesive to be 600-650 mu m, obtaining the wood substrate 1 with an interface layer 3, and drilling through holes 2 shown in the figure 1 on the surface of the wood substrate 1 with the interface layer 3 by using a drilling tool.
Flattening the wood substrate 1 with the interface layer 3, forming an insulating filling layer 4 on the surface of the wood substrate by using a mold, wherein the insulating filling layer 4 is formed by filling antistatic PVC resin, in the embodiment, the antistatic PVC resin is the antistatic PVC with the polymerization degree of 900-1200 sold in the market, the insulating filling layer 4 is formed on the surface of the wood substrate 1 by pressurizing to form a thickness layer of 3mm, the antistatic PVC resin is completely filled in the through holes 2 of the wood substrate 1 and the interface layer 3, and the weight gain of the wood substrate 1 is 22%.
Before the insulating filling layer 4 is not completely cured and molded, an insulating sheet 5 is molded on the surface of the insulating filling layer 4, the thickness of the insulating sheet is 0.9mm, the insulating sheet is formed by extrusion molding after 7 parts by mass of bisphenol A polycarbonate, 3 parts by mass of polyacrylonitrile and 1 part by mass of filler powder are uniformly mixed, and the filler powder comprises 70 wt% of white carbon black, 12 wt% of silver nitrate and 18 wt% of titanium dioxide.
Preparing a bamboo panel, firstly, carrying out antistatic treatment on a raw material bamboo sheet board, adding a hydroxylamine antistatic agent by using a 70 wt% ethanol aqueous solution as a solvent to prepare an antistatic agent aqueous solution with the mass concentration of 18 wt%, adding 1 wt% of polyvinylpyrrolidone, 0.7 wt% of silver nitrate and 3 wt% of conductive carbon black into the solvent, uniformly dispersing, heating to 50 ℃, immersing the bamboo sheet board, drying in a 70 ℃ hot air drying room after soaking for 45 hours, taking out after drying until the water content is 10%, and carrying out layer cutting to obtain a bamboo panel 6 with the thickness of 2 mm.
After the insulating filling layer 4 is completely formed, hot pressing is carried out on the surface of the insulating sheet 5 through an adhesive, the bamboo panel 6 is adhered, and after the bamboo panel 6 is stabilized, the finished product of the antistatic bamboo decorative board is obtained.
The antistatic bamboo-wood decorative board prepared by the technical scheme of the embodiment is measured to have the surface resistivity of 1.52 multiplied by 10 according to the GB/T1410-2006 mode7Omega, and the sheet materials are respectively placed for 50 days and 120 days under the conditions of the temperature of 30-35 ℃ and the relative humidity of 50-60 percent, and the surface resistivity of the sheet materials is respectively measured to be 1.63 multiplied by 10 in the same way7Omega and 1.67 x 107Therefore, the bamboo decorative board manufactured by the technical scheme of the embodiment has better antistatic performance, and the antistatic performance has better durability.
Example two:
in the second embodiment, the antistatic bamboo decorative board is prepared by the following steps:
firstly, preparing a wood substrate 1, uniformly mixing calcium silicate powder and eucalyptus wood powder according to the mass ratio of 3:1, then mixing the mixture into an epoxy adhesive according to the mass ratio of 3:1, then using a density board with the thickness of 8mm as the wood substrate 1, thinly coating the mixed adhesive on the surface of the wood substrate 1, controlling the coating thickness of the adhesive to be 550-600 mu m, obtaining the wood substrate 1 with an interface layer 3, and drilling through holes 2 shown in the figure 1 on the surface of the wood substrate 1 with the interface layer 3 by using a drilling tool.
Flattening the wood substrate 1 with the interface layer 3, forming an insulating filling layer 4 on the surface of the wood substrate by using a mold, wherein the insulating filling layer 4 is formed by filling antistatic PVC resin, in the embodiment, the antistatic PVC resin is the antistatic PVC with the polymerization degree of 900-1200 sold in the market, the insulating filling layer 4 is formed on the surface of the wood substrate 1 by pressurizing to form a thickness layer of 4mm, the antistatic PVC resin is completely filled in the through holes 2 of the wood substrate 1 and the interface layer 3, and the weight gain of the wood substrate 1 is 17%.
Before the insulating filling layer 4 is not completely cured and molded, an insulating sheet 5 is molded on the surface of the insulating filling layer 4, the thickness of the insulating sheet is 1.1mm, 9 parts by mass of bisphenol A polycarbonate, 1 part by mass of polyacrylonitrile and 1.5 parts by mass of filler powder are uniformly mixed and then extruded and molded, and the filler powder comprises 65 wt% of white carbon black, 30 wt% of silver nitrate and 5 wt% of titanium dioxide.
Preparing a bamboo panel, firstly, carrying out antistatic treatment on a raw material bamboo chip board, adding a hydroxylamine antistatic agent by using a 75 wt% ethanol aqueous solution as a solvent, preparing an antistatic agent aqueous solution with the mass concentration of 20 wt%, adding polyvinylpyrrolidone with the mass concentration of 2 wt% of the solvent, silver nitrate with the mass concentration of 0.9 wt% of the solvent and conductive carbon black with the mass concentration of 5 wt% of the solvent, uniformly dispersing, heating to 60 ℃, then immersing the bamboo panel, carrying out ultrasonic auxiliary treatment by using ultrasonic equipment under the conditions of 2200W power and 55Hz frequency, carrying out immersion treatment for 7h under the process condition, wherein the effect is similar to that of the first embodiment, drying the bamboo chip board subjected to immersion treatment in a hot air drying room at 70 ℃, taking out the bamboo chip board after drying until the water content is 9%, and carrying out layer cutting to obtain the bamboo panel 6 with the thickness of 3 mm.
After the insulating filling layer 4 is completely formed, hot pressing is carried out on the surface of the insulating sheet 5 through an adhesive, the bamboo panel 6 is adhered, and after the bamboo panel 6 is stabilized, the finished product of the antistatic bamboo decorative board is obtained.
The antistatic bamboo-wood decorative board prepared by the technical scheme of the embodiment is measured to have the surface resistivity of 1.67 multiplied by 10 according to the GB/T1410-2006 mode7Omega, and the sheet materials are respectively placed for 50 days and 120 days under the conditions of the temperature of 30-35 ℃ and the relative humidity of 50-60 percent, and the surface resistivity of the sheet materials is respectively measured to be 1.77 multiplied by 10 in the same way7Omega and 1.81 × 107Therefore, the bamboo decorative board manufactured by the technical scheme of the embodiment has better antistatic performance, and the antistatic performance has better durability.
Example three:
in the third embodiment, the antistatic bamboo decorative board is prepared by the following steps:
firstly, preparing a wood substrate 1, uniformly mixing calcium silicate powder and eucalyptus wood powder according to the mass ratio of 3:1, then mixing the mixture into an epoxy adhesive according to the mass ratio of 3:1, then using a particle board with the thickness of 8mm as the wood substrate 1, thinly coating the mixed adhesive on the surface of the wood substrate 1, controlling the coating thickness of the adhesive to be 750-800 mu m, obtaining the wood substrate 1 with a boundary layer 3, and drilling through holes 2 shown in the figure 1 on the surface of the wood substrate 1 with the boundary layer 3 by using a drilling tool.
Flattening the wood substrate 1 with the interface layer 3, forming an insulating filling layer 4 on the surface of the wood substrate by using a mold, wherein the insulating filling layer 4 is formed by filling antistatic PVC resin, in the embodiment, the antistatic PVC resin is commercially available antistatic PVC with the polymerization degree of 900-1200, the insulating filling layer 4 is formed on the surface of the wood substrate 1 by pressurizing to form a thickness layer of 3.5mm, the antistatic PVC resin is completely filled in the through holes 2 of the wood substrate 1 and the interface layer 3, and the weight gain of the wood substrate 1 is 24%.
Before the insulating filling layer 4 is not completely cured and molded, an insulating sheet 5 is molded on the surface of the insulating filling layer 4, the thickness of the insulating sheet is 1.2mm, the insulating sheet is formed by extrusion molding after 8 parts by mass of bisphenol A polycarbonate, 2 parts by mass of polyacrylonitrile and 1.2 parts by mass of filler powder are uniformly mixed, and the filler powder comprises 80 wt% of white carbon black, 7 wt% of silver nitrate and 13 wt% of titanium dioxide.
The preparation method comprises the steps of firstly carrying out antistatic treatment on a raw material bamboo chip board, in the embodiment, when the antistatic treatment is carried out, firstly mixing polyvinyl chloride resin and epoxy resin according to the mass ratio of 1:1, then uniformly dispersing to obtain a resin material, then adding a quaternary ammonium sulfonate antistatic agent accounting for 8 wt% of the resin material, antimony trioxide accounting for 2 wt% of the resin material and polyquaternary ammonium salt 80 accounting for 4 wt% of the resin material, uniformly dispersing by using a dispersing kettle, then adding into a vacuum impregnation tank, controlling the impregnation pressure of the impregnation tank to be 0.06MPa to carry out vacuum impregnation treatment on the bamboo chip board, curing at the set temperature condition of 180 ℃ after the impregnation treatment is carried out for 70min, and then taking out and carrying out layer cutting to obtain the antistatic treated bamboo chip board with the thickness of 2 mm.
After the insulating filling layer 4 is completely formed, hot pressing is carried out on the surface of the insulating sheet 5 through an adhesive, the bamboo panel 6 is adhered, and after the bamboo panel 6 is stabilized, the finished product of the antistatic bamboo decorative board is obtained.
The antistatic bamboo-wood decorative board prepared by the technical scheme of the embodiment is measured to have the surface resistivity of 1.26 multiplied by 10 according to the GB/T1410-2006 mode7Omega, and the sheet materials are respectively placed for 50 days and 120 days under the conditions of the temperature of 30-35 ℃ and the relative humidity of 50-60 percent, and the surface resistivity of the sheet materials is respectively measured to be 1.38 multiplied by 10 in the same way7Omega and 1.42 x 107Therefore, the bamboo and wood decorative board manufactured by the technical scheme of the embodiment has better antistatic performance, the improvement of the antistatic performance is more obvious compared with the first embodiment and the second embodiment, and in addition, the antistatic performance also has better durability; but has the disadvantage that the solution of this embodiment is more costly.
In the above embodiment, it can be seen that the decorative board manufactured by the technical scheme of the embodiment has a better antistatic effect, and in order to further optimize the antistatic effect and improve the weather resistance of the decorative board, the two-component antistatic UV paint with the primer layer 7 and the antistatic UV top coat layer 8 can be sequentially coated on the surface of the bamboo panel 6 according to the pattern shown in fig. 1 to realize the corresponding effect, the two-component antistatic UV paint can be the existing two-component antistatic UV paint sold on the market, and the antistatic bamboo decorative board manufactured under the condition of the embodiment can further improve the antistatic effect of the bamboo decorative board through the antistatic property of the paint layer and further prolong the antistatic life of the bamboo decorative board through better preservation of the effective components of the bamboo decorative board through the paint layer.
The two-component antistatic UV paint can also be replaced by other paint vehicles or coatings with antistatic effect and weather-proof effect on the market.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. An antistatic bamboo-wood decorative plate is formed by splicing a plurality of veneers and is characterized in that the veneers are composite veneers and comprise a bamboo panel and a wood substrate, the bamboo panel is subjected to antistatic treatment, the surface of the wood substrate is formed into a boundary layer, the boundary layer is formed by uniformly mixing calcium silicate powder and eucalyptus wood powder according to the mass ratio of 3:1, then mixing the mixture with an adhesive, and then spraying the mixture on the surface of the wood substrate for forming, wherein through holes which are arranged in a dot matrix form are formed on the wood substrate and the boundary layer;
a composite antistatic layer is formed between the bamboo panel and the wood substrate, and the composite antistatic layer comprises an insulating sheet arranged on the side of the bamboo panel and an insulating filling layer formed on the side of the wood substrate; the insulation sheet is formed by uniformly mixing bisphenol A polycarbonate, polyacrylonitrile and filler powder and then extruding, wherein the filler powder is mixture powder of white carbon black, silver nitrate and titanium dioxide, and the mass ratio of the white carbon black in the mixture powder is not lower than 60%; the insulating filling layer is formed by filling antistatic PVC resin, and is filled in the through holes on the wood substrate and the interface layer in a pressurized manner during forming.
2. The antistatic bamboo-wood decorative plate of claim 1, wherein the single plates are rectangular plates, splicing parts for splicing the two single plates are formed on the short sides of the two sides of the single plates, and the splicing parts are finger-joint splicing parts or plug-joint splicing parts.
3. The antistatic bamboo-wood decorative board of claim 1, wherein the bamboo panel is subjected to antistatic treatment by dipping with hydroxylamine antistatic agent or quaternary ammonium sulfonate antistatic agent.
4. The antistatic bamboo-wood decorative plate according to claim 3, wherein 70-75 wt% of ethanol water solution is used as a solvent during dipping treatment, an antistatic agent is added, the antistatic agent water solution with the mass concentration of 18-25 wt% is prepared, polyvinylpyrrolidone with the mass concentration of 1-3 wt% of the solvent, silver nitrate with the mass concentration of 0.7-0.9 wt% of the solvent and conductive carbon black with the mass concentration of 3-5 wt% of the solvent are added together, the temperature is raised to 50-70 ℃ after uniform dispersion, then the bamboo panel is immersed, and the bamboo panel is dried after dipping treatment for 36-48 hours to obtain the antistatic bamboo panel.
5. The antistatic bamboo-wood decorative plate according to claim 4, wherein in the dipping process, ultrasonic assistance is performed through ultrasonic equipment under the conditions of 1500-3000W of power and 45-60 KHz of frequency so as to shorten the dipping time to 5-8 h.
6. The antistatic bamboo-wood decorative plate of claim 3 is characterized in that when the bamboo-wood decorative plate is subjected to dipping treatment, polyvinyl chloride resin and epoxy resin are mixed according to the mass ratio of 2: 3-1: 1 and then are uniformly dispersed to obtain a resin material, then an antistatic agent accounting for 7-9 wt% of the resin material, antimony trioxide accounting for 1-3 wt% of the resin material and polyquaternium 80 or polyquaternium 126 accounting for 3-5 wt% of the resin material are added together, the resin material is uniformly dispersed by a dispersing kettle and then added into a vacuum dipping tank, the dipping pressure of the dipping tank is controlled to be 0.05-0.07 MPa to perform vacuum dipping treatment on the bamboo panel, and after the dipping treatment lasts for 45-90 min, the bamboo panel is subjected to heat curing to obtain the antistatic bamboo panel.
7. The antistatic bamboo-wood decorative board of claim 1, wherein the bamboo face board is provided with a primer layer on the surface, and an antistatic UV finish is coated on the surface of the primer layer.
8. The antistatic bamboo-wood decorative plate of claim 1, wherein the through hole is a funnel-shaped through hole, and the aperture of the funnel-shaped through hole on the interface layer side is larger than that of the wood substrate side.
9. The antistatic bamboo-wood decorative plate of claim 1, wherein the usage ratio of the bisphenol A polycarbonate to the polyacrylonitrile in the insulating sheet is 7: 3-9: 1; and the using amount of the filler powder is 8-15% of the sum of the mass of the bisphenol A polycarbonate and the mass of the polyacrylonitrile.
10. The antistatic bamboo-wood decorative plate of claim 1, wherein the weight gain of the wood substrate after the insulation filling layer is pressurized and filled is 15-25%.
CN202111349684.2A 2021-11-15 2021-11-15 Antistatic bamboo wood decorative board Pending CN113882610A (en)

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Application publication date: 20220104