WO2022224782A1 - 板材加工用組成物、板材積層物及び板材積層物の製造方法 - Google Patents
板材加工用組成物、板材積層物及び板材積層物の製造方法 Download PDFInfo
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- WO2022224782A1 WO2022224782A1 PCT/JP2022/016238 JP2022016238W WO2022224782A1 WO 2022224782 A1 WO2022224782 A1 WO 2022224782A1 JP 2022016238 W JP2022016238 W JP 2022016238W WO 2022224782 A1 WO2022224782 A1 WO 2022224782A1
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- B27K2200/00—Wooden materials to be treated
- B27K2200/30—Multilayer articles comprising wood
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- B27K2240/00—Purpose of the treatment
- B27K2240/30—Fireproofing
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- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/005—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process employing compositions comprising microparticles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0207—Pretreatment of wood before impregnation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
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- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/16—Inorganic impregnating agents
- B27K3/166—Compounds of phosphorus
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- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/026—Wood layer
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- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
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- B32B2260/046—Synthetic resin
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
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- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
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- B32B2307/00—Properties of the layers or laminate
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- B32B2419/00—Buildings or parts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/015—Biocides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
Definitions
- the present disclosure relates to a board processing composition, a board laminate, and a method for producing a board laminate.
- Patent Document 1 For wood used in houses, etc. in Japan, for example, "non-combustible" (quasi-non-combustible or flame-retardant is acceptable; the same shall apply hereinafter) is required based on Japanese law.
- Patent Document 1 As a technique for imparting noncombustibility to wood, the technique described in Patent Document 1 is known.
- Paragraph 0009 of Patent Document 1 states, "(1) First, polyphosphoric acid is added to hot water of 50° C. or higher. (2) Next, when the polyphosphoric acid is completely dissolved, the temperature is maintained and the phosphoric acid is dissolved. Add diammonium and stir to dissolve (3) After dissolving, add boric acid while maintaining the temperature and stir to dissolve (4) Then, add phosphoric acid to the dissolved water. In this way, the non-combustible agent for wood is purified.”.
- the problem to be solved by the present disclosure is to provide a board processing composition, a board laminate, and a method for producing a board material laminate that can produce a board material laminate having noncombustibility and high adhesion performance.
- the sheet material processing composition of the present disclosure is a sheet material processing composition that suppresses burning of a sheet material by heating, and comprises an inorganic carbonization promoting component that promotes carbonization of an organic component in the sheet material during the heating, and An inorganic chain-inhibiting component that inhibits a reaction chain to adjacent components by products of endothermic decomposition generated during heating, the organic component in the plate material, the carbonization-promoting component, and the chain-inhibiting component are bonded together. inorganic and hydrophobic binder particles. Other solutions will be described later in the detailed description.
- a plate material processing composition a plate material laminate, and a method for producing a plate material laminate that can produce a plate material laminate having noncombustibility and high adhesion performance.
- FIG. 1 is a perspective view of a board laminate of the present disclosure
- FIG. 1 is a cross-sectional view of a board laminate of the present disclosure
- FIG. 1 is a flow chart illustrating a method of manufacturing a laminate of sheets of the present disclosure
- It is a schematic diagram of the punching apparatus which performs a punching process.
- FIG. 11 is a top view of a plate material used in Example 3
- FIG. 6 is a cross-sectional view taken along line AA of FIG. 5
- 10 is a drawing-substituting photograph showing the results of a noncombustible test according to Example 5.
- FIG. 2 is a drawing-substituting photograph showing the results of a noncombustible test according to a reference example (Example 1).
- FIG. 1 is a perspective view of a board laminate 10 of the present disclosure.
- FIG. 2 is a cross-sectional view of a board laminate 10 of the present disclosure.
- the plate laminate 10 includes a first plate 11 and a second plate 12 which are the plate 1 and an adhesive layer 13 .
- the plate laminate 10 is configured by alternately stacking first plate members 11 and second plate members 12 .
- the first plate member 11 and the second plate member 12 are adhered by the adhesive layer 13 .
- the first plate material 11 and the second plate material 12 are obtained by impregnating a plate-like wood material (that is, a plate material) with a composition for processing a plate material.
- the board material processing composition is a composition that suppresses burning of the board material 1 due to heating and improves adhesion performance between the first board material 11 and the second board material 12 .
- the plate material 1 preferably has holes 20 (Fig. 4) on its surface.
- the holes 20 By providing the holes 20 , it is possible to sufficiently impregnate the plate material processing composition into the inside of the plate material 1 , and the non-combustible performance of the plate material laminate 10 can be improved.
- the composition for processing a board material contains ceramic particles (described later), the composition for processing a board material is usually in the form of a slurry. Therefore, by providing the holes 20 , it is possible to sufficiently impregnate the inside of the plate material 1 with the slurry-like composition for processing the plate material.
- the holes 20 may have, for example, a circular shape, a rectangular shape, or the like arranged in a scattered manner in a top view of the plate member 1 viewed from the opening side of the hole 20. It may be a groove extending in a straight or curvilinear manner. Moreover, when they are arranged in a scattered manner, they may be arranged regularly at equal intervals, or may be arranged only at arbitrary locations. Although the details will be described later, from the viewpoint of promoting the impregnation of the board processing composition, it is preferable that the holes 20 are arranged at least at a position that penetrates the winter grain. Moreover, the holes 20 can be formed in at least one of the six surfaces forming the plate member 1 .
- the surface on which the holes 20 are formed is a surface that has little influence on the design of the laminate of plate materials 10 .
- the holes 20 are provided, for example, on the cross-grain surface of the plate material 1 . By being provided on the cross-grain surface, it is possible to sufficiently impregnate the board material processing composition into the inside of the board material 1 through the holes 20 .
- the holes 20 may be provided on the straight-grained surface.
- the holes 20 are formed so as to cut off the cellulose fibers of the plate material 1 which is wood. By shearing the fibers in this way, it is possible to extend the impregnation property of the board material processing composition into the peripheral portion and facilitate the impregnation. Further, after the impregnation step S3 (Fig. 3) and the drying step S4 (Fig. 3), it is possible to suppress shape deformation due to the stress of the fibers.
- the inner walls of the holes 20 are made of cellulose, lignin, or the like, which are the constituent materials of the plate member 1 . By forming the inner wall of the hole 20 with such a material, the inner wall of the hole 20 can be impregnated with the board processing composition in the same manner as other portions.
- the holes 20 extend along the thickness direction of the plate material 1 as shown in FIG. 4 described later.
- the holes 20 normally extend in a direction perpendicular to the surface of the plate 1, but may be formed at an angle to the surface, for example.
- the hole 20 may be provided so as to penetrate the plate member 1 or may be provided only partially in the thickness direction of the plate member 1 .
- the depth of the hole 20 is not particularly limited, and may be determined as appropriate in consideration of design and work efficiency.
- the depth of the hole 20 can be, for example, 30% or more, preferably 40% or more, and the upper limit is 100% or less, preferably 90% or less, and more preferably 70% or less of the thickness of the plate member 1 .
- the hole 20 penetrates the plate member 1 .
- the total depth of the holes 20 preferably satisfies the above range.
- the depth of the hole 20 is preferably 5 mm or more and 15 mm or less (for example, 10 mm) from the viewpoint of ensuring the strength of the plate material 1 .
- the holes 20 When the holes 20 are provided on the cross-grain surface, they preferably have a depth that penetrates a plurality of winter grains.
- the winter grain portion is hard and difficult to be impregnated with the sheet material processing composition. can impregnate.
- the size of the hole 20 (for example, the length of the longest portion of the inner diameter) is, for example, 0.1 mm or more, preferably 0.3 mm or more, and the upper limit is, for example, 5 mm or less, preferably 3 mm or less. If the hole 20 is, for example, circular in top view, the size is the diameter of the hole 20 . Furthermore, when a plurality of holes 20 are provided, the interval between adjacent holes 20 is not particularly limited, but can be, for example, 5 mm or more, preferably 10 mm or more, and the upper limit is, for example, 20 mm or less, preferably 15 mm or less.
- the sheet material processing composition contains a carbonization promoting component, a chain inhibiting component, and binder particles.
- the carbonization promoting component, the chain inhibitor component and the binder particles are all inorganic.
- the plate material 1 can be imparted with, for example, noncombustibility.
- the carbonization promoting component is a component that promotes carbonization of the organic components in the plate 1 when the plate 1 is heated.
- the carbonization promoting component it is possible to carbonize organic components such as cellulose and lignin on the heating surface, thereby suppressing the intrusion of oxygen into the interior. This makes it possible to suppress the combustion of the organic components present inside.
- carbide can be formed on the heating surface, heat transfer to the inside can be suppressed, and combustion of organic components present inside can be suppressed.
- the shape of the carbonization promoting component is not particularly limited, it is preferably in the form of particles that are insoluble or poorly soluble in water, for example. By being granular, even if it is insoluble or sparingly soluble, it can be easily dispersed in the board processing composition.
- the particle size of the granular carbonization promoting component is, for example, 10 ⁇ m or more and 50 ⁇ m or less. By setting the particle size within this range, the plate material 1 can be easily impregnated.
- the particle size for example, an average particle size based on a laser diffraction scattering method can be adopted.
- Specific components of the carbonization promoting component are not particularly limited, but examples include at least one of boron-based (eg, boric acid, etc.), phosphorus-based (eg, phosphoric acid, etc.), ammonium sulfate, and the like. Among these, it is preferable to contain a boron-based material, and among these, it is preferable to contain boric acid. Boron-based compounds exist stably, are inexpensive and readily available, and can reduce the production cost of the board processing composition.
- a chain-suppressing component is a component that suppresses a reaction chain to an adjacent component by an endothermic decomposition product generated when the plate material 1 is heated.
- the chain-inhibiting component can provide a cooling effect due to the chemical reaction of endothermic decomposition.
- the reaction chain due to the non-contact effect caused by products such as carbides can be interrupted.
- Specific components of the chain inhibitor are not particularly limited, but examples include at least one of ammonium dihydrogen phosphate (primary ammonium phosphate), guanidine compound, sodium polyborate, borax, and zinc borate. Among them, a highly hydrophilic component is preferred, and it is preferred that ammonium dihydrogen phosphate is included. Ammonium dihydrogen phosphate exhibits low hygroscopicity. Therefore, it is possible to prevent moisture from being absorbed into the interior of the plate 1 when dispersed over the entire plate 1, and to suppress peeling of the adhesive layer 13 due to internal moisture.
- ammonium dihydrogen phosphate primary ammonium phosphate
- guanidine compound sodium polyborate
- borax borax
- zinc borate zinc borate
- a highly hydrophilic component is preferred, and it is preferred that ammonium dihydrogen phosphate is included.
- Ammonium dihydrogen phosphate exhibits low hygroscopicity. Therefore, it is possible to prevent moisture from being
- the chain-inhibiting component and the carbonization-promoting component may be the same component (eg, boric acid).
- the boric acid functions as both a chain inhibitor and a carbonization promoting component.
- the binder particles are hydrophobic particles that bond the organic components (cellulose, etc.) in the plate material 1 with the carbonization promoting component and the chain inhibiting component.
- the carbonization promoting component and the chain-inhibiting component can be arranged so as to be in close contact with the organic component in the plate material 1, and the organic component can be made difficult to burn.
- the binder particles are preferably fine.
- the particle size of the binder particles is, for example, 1 ⁇ m or more and 100 ⁇ m or less. By setting the particle size within this range, the plate material 1 can be easily impregnated. Further, by setting the particle size of the binder particles within this range, the binder particles can be stably arranged.
- the particle size for example, an average particle size based on a laser diffraction scattering method can be adopted.
- the particle size does not have to be a single particle size, and the binder particles may be a mixed powder of particles with different sizes. By using the mixed powder, the binder particles can be arranged so as to fill the gaps, and the adhesion performance can be further improved. Further, the binder particles may be spherical or non-spherical.
- a non-spherical shape is, for example, an angular shape (a shape having corners), an elliptical shape, or the like.
- the specific components of the binder particles are not particularly limited, but include water-insoluble or sparingly soluble inorganic materials, such as at least one such as silica sand.
- silica sand is preferably included.
- the use of silica sand makes it difficult for water to be retained, and can suppress efflorescence after the board material 1 is impregnated with the board material processing composition and dried.
- silica sand forms an inorganic heat-insulating layer, which can improve noncombustibility.
- the plate material processing composition preferably contains ceramic particles (sintered body). Ceramic particles have the function of improving the non-combustibility of the plate laminate 10, for example. Since the sintered body has high heat shielding performance, the ceramic particles can suppress heat propagation. As a result, the depth of fire spread can be made shallow. Whether or not the particles are ceramic particles can be determined, for example, by observation using an electron microscope, component analysis, or the like.
- the ceramic particles are preferably spherical. Being spherical makes it easier to enter the plate material 1 and make it easier to impregnate the plate material 1 .
- the bulk density can be made higher than that of non-spherical particles (for example, bulky particles), and the heat shielding effect caused by ceramics can be particularly improved. Thereby, the nonflammability of the board
- the spherical ceramic particles can be produced, for example, by melting and sintering. Although the ceramic particles are preferably spherical, they may be non-spherical.
- the ceramic particles are preferably contained in at least the outermost plate material 1 among the plate materials 1 .
- the heat resistance of the plate member 1 can be improved due to the heat resistance attributed to the ceramic particles.
- Specific components of the ceramic particles are not particularly limited as long as they are components having heat resistance that can withstand flames. At least one of sintered bodies made of non-metallic oxides such as silicon carbide and silicon nitride can be used.
- the size of the ceramic particles is not particularly limited, and is, for example, 8 ⁇ m or more, preferably 10 ⁇ m or more, and the upper limit thereof is, for example, 35 ⁇ m or less, preferably 20 ⁇ m or less.
- the size of the ceramic particles can be measured, for example, by the same measuring method as the size of the binder particles.
- Ceramic particles can be produced, for example, by blasting a mass of ceramic (for example, silica) and heat-treating it. Further, whether or not the particles are truly spherical can be confirmed, for example, by observation using a microscope.
- ceramic for example, silica
- the content of the ceramic particles can be, for example, 0.5% by mass or more and 5% by mass or less based on the entire board material processing composition. By setting the content of the ceramic particles within this range, the impregnation of the plate material 1 can be facilitated.
- the ceramic particles are arranged inside and near the surface of the plate material 1 .
- an adhesive (described later) is applied in this state, the adhesive also impregnates the plate material 1, but the adhesive cannot impregnate the ceramic particles of the plate material 1, and the bonding strength can be intentionally lowered. .
- the nonflammability can be particularly improved by intentionally causing peeling when brought into contact with a flame.
- the sheet material processing composition may contain arbitrary components other than the carbonization promoting component, the chain inhibiting component, and the binder particles within a range that does not significantly impair the effects of the present disclosure.
- concentration of the component in the solvent eg, water
- the relative content ratio of the carbonization promoting component, the chain inhibitory component and the binder particles is not particularly limited, but for example, the carbonization promoting component is 1% by mass, and the chain inhibitory component is, for example, 5% by mass or more and 15% by mass or less.
- Binder particles can be used at a ratio of, for example, 1% by mass or more and 10% by mass or less.
- the board material processing composition is, for example, an agent for impregnating the board material 1 .
- an impregnating agent By being an impregnating agent, it is possible to impart nonflammability to the entire plate material 1 . A specific impregnation method will be described later with reference to FIG.
- the plate material processing composition can also be used as a coating agent for the surface of the plate material 1 .
- a coating agent By being a coating agent, it is possible to both suppress internal combustion when the surface is heated and reduce the mass of the plate member 1 so that the entire plate member 1 is not impregnated with the coating agent. A specific coating method will be described later with reference to FIG.
- each of the first plate member 11 and the second plate member 12 is independently, for example, 1 mm or more, preferably 3 mm or more, and the upper limit is, for example, 15 mm or less, preferably 10 mm or less, more preferably 9 mm or less. By setting the thicknesses within this range, the whole of each of the first plate material 11 and the second plate material 12 can be easily impregnated with the composition for processing the plate material.
- the adhesive layer 13 bonds the first plate member 11 and the second plate member 12 together.
- the adhesive layer 13 can be formed by applying an arbitrary adhesive to at least one of the first plate member 11 and the second plate member 12 and bonding them together. Examples of such adhesives include adhesives that can bond wood together. Component adhesives can be used.
- the adhesive layer 13 may contain, in addition to such an adhesive component, any component such as the above-described ceramic particles and silica sand within a range that does not significantly impair the effects of the present disclosure.
- the adhesive layer 13 contains a component such as ceramic particles
- the adhesive layer 13 is preferably made of a one-liquid curing adhesive from the viewpoint of accelerating curing.
- the thickness of the adhesive layer 13 is not particularly limited, it can be, for example, 1 ⁇ m or more and 1 mm or less, preferably 1 ⁇ m or more and 100 ⁇ m or less, more preferably 1 ⁇ m or more and 15 ⁇ m or less. However, the thickness of the adhesive layer 13 is usually larger than the size of the components such as ceramic particles.
- the adhesive layer 13 can contain ceramic particles similar to the ceramic particles described above. Therefore, at least one of the adhesive layer 13 and the board processing composition preferably contains ceramic particles.
- the non-combustibility of the plate laminate 10 can be improved in the same manner as in the case where the adhesive layer 13 is included in the plate material processing composition.
- the ceramic particles in the adhesive layer 13 can The propagation of heat to the plate member 1 is suppressed. As a result, the depth of fire spread can be made shallower to suppress the combustion of the entire stack of plate materials 10, and the non-combustibility of the stack of plate materials 10 as a whole can be improved.
- the adhesive layer 13 contains ceramic particles
- the ceramic particles are not involved in the adhesive function. suppressed by As a result, when the outermost plate member 1 is burned, the plate member 1 carbonized by the combustion can be intentionally separated from the plate member 1 adhered via the adhesive layer 13 . As a result, a gap (space) can be formed between the carbonized plate material 1 and the uncarbonized plate material 1 arranged immediately inside thereof, and heat propagation can be suppressed. Therefore, it is possible to suppress the continuous burning of adjacent plate materials 1, and improve the non-combustibility of the entire plate material laminate 10.
- the adhesive layer 13 contains ceramic particles
- the same matters as those of the ceramic particles contained in the board material processing composition can be applied to the specific components and size of the ceramic particles.
- the content of the ceramic particles in the adhesive layer 13 is, for example, 1% by mass or more, preferably 3% by mass or more, and the upper limit is, for example, 15% by mass or less, preferably 12% by mass or less, based on the entire adhesive layer 13. can.
- the ceramic particles may be included in the base layer (not shown) of at least one of the first plate member 11 and the second plate member 12 instead of the adhesive layer 13 or together with the adhesive layer 13 .
- the base layer is a layer as a part of the plate member 1 formed on the surface of at least one of the first plate member 11 and the second plate member 12 .
- the adhesive layer 13 is adhered to the base layer of the first plate member 11 and the second plate member 12 .
- the plate material laminate 10 includes a surface coating layer 14 on at least one surface of the first plate material 11 or the second plate material 12 .
- the first plate member 11 has surface coating layers 14 on its upper and lower surfaces
- the second plate member 12 also has surface coating layers 14 on its upper and lower surfaces.
- the surface coating layer 14 can contain, for example, the above carbonization promoting component, chain inhibitor component and binder particles. By doing so, noncombustibility and high adhesion performance against heating originating from the surface of at least one of the first plate member 11 and the second plate member 12 can be easily exhibited.
- the binder particles are hydrophobic, it is possible to suppress migration of moisture from the binder particles to the wood, the carbonization promoting component, the chain suppressing component, and the adhesive layer 13 . As a result, peeling between the surface coating layer 14 and the adhesive layer 13 can be suppressed, and these can be firmly adhered together over a long period of time.
- the concentrations of the carbonization promoting component, the chain inhibitor and the binder particle concentration may be the same as or different from those of the board processing composition described above.
- the surface coating layer 14 preferably contains silica sand.
- silica sand By including silica sand, it is possible to suppress efflorescence, which is deposited on the surface of the sheet material processing composition after drying the sheet material processing composition impregnated in the sheet material laminate 10, for example.
- Silica sand may be included as binder particles or may be included for other purposes.
- the surface coating layer 14 may further contain any additive.
- optional additives include at least one of wax components, pigments, antibacterial agents (titanium oxide, etc.), and the like.
- the thickness of the surface coating layer 14 is not particularly limited, it can be, for example, 1 ⁇ m or more and 1 mm or less, preferably 1 ⁇ m or more and 100 ⁇ m or less, more preferably 1 ⁇ m or more and 15 ⁇ m or less.
- the plate laminate 10 has an outermost surface coating layer 15 on the outermost surface 2 .
- the outermost surface coating layer 15 By providing the outermost surface coating layer 15, the functionality of the outermost surface 2 can be improved. However, the outermost surface coating layer 15 may not be provided.
- the outermost coating layer 15 preferably contains at least one inorganic additive of a pigment, an antibacterial agent, an antiviral agent, or a water repellent agent.
- each function such as the design property of the outermost surface 2, antibacterial property, antiviral property, and water repellency, can be improved.
- the outermost surface 2 of the plate laminate 10 can be colored by including a pigment in the outermost surface coating layer 15 .
- the user can visually recognize, for example, a wood grain pattern on the outermost surface 2, so that the design can be improved.
- the outermost coating layer 15 is usually exposed to the air and easily touched by people. Therefore, by including at least one of an inorganic non-antibacterial agent, an antiviral agent, or a water repellent agent, the board material laminate 10 is imparted with noncombustibility, and the board material laminate 10 is provided with antibacterial and antibacterial properties. It is compatible with at least one impartation of virality or water repellency.
- antibacterial properties to the outermost surface 2 it is possible to suppress invasion of bacteria and the like from the outermost surface 2 into the plate member 1, thereby suppressing internal corrosion.
- water repellency to the outermost surface 2 it is possible to suppress penetration of moisture from the outermost surface 2 into the inside of the plate material 1, thereby suppressing internal corrosion.
- antibacterial agents and antiviral agents include inorganic components having antiseptic and antitermite properties, and specific examples include boric acid and phosphoric acid.
- antibacterial agent and an antiviral agent there is also a component such as titanium oxide that can exhibit an antibacterial action by ions.
- water repellents include silicon compounds such as silica, organosiloxane, and silane.
- the outermost coating layer 15 is preferably made of an inorganic material. As a result, deterioration of the outermost surface coating layer 15 due to light can be suppressed even when light including ultraviolet rays such as sunlight is irradiated.
- the outermost coating layer 15 may also serve as the surface coating layer 14 as shown.
- the surface coating layer 14 and the outermost surface coating layer 15 are formed on the outside of the plate material 1 arranged on the outermost side of the plate material laminate 10 . Therefore, as the outermost coating layer 15, the above-described items related to the surface coating layer 14 can be applied in the same manner. can be configured with As a result, in addition to the effects described for the surface coating layer 14, since the outermost surface coating layer 15 is made of an inorganic material, for example, oil-based ink can be easily erased when adhered.
- the thickness of the outermost coating layer 15 is not particularly limited, it can be, for example, 1 ⁇ m or more and 1 mm or less, preferably 1 ⁇ m or more and 100 ⁇ m or less, more preferably 1 ⁇ m or more and 15 ⁇ m or less.
- the plate material laminate 10 can be used for any purpose.
- the plate material laminate 10 is obtained by laminating a plurality of thin plate materials 1 to a thickness that is difficult to impart noncombustibility with only one plate material 1 (for example, a thickness of 10 mm to 50 mm, but it may be thicker. ) plywood can be obtained.
- a 50 mm sheet material laminate 10 having excellent nonflammability can be manufactured.
- the plate materials 1 are excellent in adhesion ability, they can be stably used for a long period of time with less peeling.
- the plate material laminate 10 can be any of CLT plywood, powder/wood wool plywood, gypsum board, concrete parts, steel parts, paper products, cloth products, vinyl sheet products, veneer wood (hardwood / conifer), etc. Can be used for any purpose.
- existing certified noncombustible materials both veneer and plywood
- the plate laminate 10 of the present disclosure can be produced by using an existing plate laminate and the plate processing composition of the present disclosure, without having to produce the plate laminate 10 from new wood.
- the plate material 1 constituting the plate material laminate 10 is impregnated with the plate material processing composition as described above, and the remaining moisture inside the plate material 1 is small. Therefore, the efflorescence phenomenon can be suppressed over a long period of time while sufficiently imparting noncombustibility and improving the adhesive ability of the adhesive layer 13 .
- the thickness so that the residual moisture inside (internal moisture) is uniform regardless of location, the residual moisture is uniform throughout the stacked plate laminates 10 . As a result, uneven deformation due to the difference in moisture content can be suppressed, and cracks and the like can be suppressed.
- FIG. 3 is a flow chart showing a method of manufacturing the board laminate 10 (FIG. 1) of the present disclosure.
- the method for manufacturing the plate laminate 10 includes a lumbering step S1, a perforating step S2, an impregnating step S3, a drying step S4, an R processing step S5, a coating step S6, an adhesive applying step S7, and a laminating step S8. , a finishing shape processing step S9, and an outermost surface coating step S10. Although it is preferable to perform the perforation step S2, it is not necessary to perform the perforation step S2.
- the sawing step S1 is a step of sawing, for example, a flat board 1 (FIG. 1) having a thickness of 1 mm or more and 15 mm or less from wood.
- a flat board 1 (FIG. 1) having a thickness of 1 mm or more and 15 mm or less from wood.
- cedar, cypress, etc. can be used.
- winter lumber for example, from the viewpoint of reducing the internal moisture of the plate material 1 .
- the internal moisture content can be sufficiently reduced by reducing the thickness of the plate 1 .
- FIG. 4 is a schematic diagram of the punching device 100 that executes the punching step S2.
- the perforating step S2 is a step of forming holes 20 in the surface 110 of at least one of the first plate member 11 (Fig. 1) and the second plate member 12 (Fig. 1). Hole 20 is formed by pressing the tip of rod member 1022 into surface 110 .
- the punching device 100 is a device that forms holes 20 in the surface 110 of the plate material 1 .
- the surface 110 forming the hole 20 is preferably the cross-grain surface of the plate material 1 as described above.
- the punching device 100 includes a conveying roller 101 , a scraping roller 102 and a drive roller 103 .
- a plurality of conveying rollers 101 are arranged to convey the plate material 1 .
- the plate material 1 is arranged between two conveying rollers 101 arranged in the vertical direction.
- two pairs of conveying rollers 101 for sandwiching the plate material 1 are provided in the horizontal direction.
- the scraping roller 102 faces the surface 110 and forms holes 20 in the surface 110 by scraping the surface 110 as it rotates.
- the scraping roller 102 includes a rotating shaft 1021 and a rod member 1022 extending outward (for example, radially) from the surface of the rotating shaft 1021 .
- the rotating shaft 1021 is, for example, a cylinder, and the belt 104 is connected to the driving roller 103 connected to a motor (not shown).
- the driving roller 103 rotates, the rotational force of the driving roller 103 is transmitted to the rotating shaft 1021 via the belt 104 wound around the driving roller 103 . Thereby, the rotating shaft 1021 rotates.
- a plurality of rod members 1022 are arranged, for example, on the surface of the rotating shaft 1021 with an interval corresponding to the formation interval of the holes 20 (interval L3 (see FIG. 5) described later).
- the rod member 1022 may have a columnar shape such as a cylinder or prism having a certain thickness when viewed with the naked eye, or may have a conical shape such as a cone or pyramid.
- the rod member 1022 may be, for example, needle-shaped, having a certain thickness that can be visually recognized when confirmed with a microscope, for example.
- the hole 20 is formed in the surface 110 by pushing (biting) the tip of the rod member 1022 into the surface 110 of the plate member 1 .
- the hole 20 By forming the hole 20 by pushing the rod member 1022 in this way, the hole 20 can be formed without significantly impairing the properties of the board 1 which is a piece of wood. Therefore, impregnation of the board material processing composition through the holes 20 can be easily controlled, and the entire board material 1 can be easily impregnated with the board material processing composition.
- the shape of the rod member 1022 may be determined according to the desired shape of the hole 20, and when the inner wall surface of the hole 20 has a cylindrical outer surface, the rod member 1022 is configured by, for example, a cylinder.
- the tip of the rod member 1022 may be sharp so that it can be easily pushed.
- the impregnation step S3 is a step of impregnating the plate material 1 with the plate material processing composition.
- the plate material processing composition impregnates the plate material 1 having the holes 20 formed therein (FIG. 4).
- the plate material processing composition is impregnated into the entire plate material 1 through the holes 20, for example.
- the board processing composition is usually in the form of a slurry containing water as a solvent.
- the specific method of impregnation is not particularly limited.
- the internal moisture of the plate material 1 can be reduced by placing the plate material 1 in a pressure-reducing pot (not shown) and reducing the pressure.
- the slurry of the composition for processing a board material is put into a tank under reduced pressure, and the board material 1 can be impregnated with the composition for processing a board material by appropriately pressurizing the slurry.
- the pressurization may be pressurization from a reduced pressure state back to the atmospheric pressure, or may be pressurization from a reduced pressure state to a pressure exceeding the atmospheric pressure.
- the specific conditions for impregnation are not particularly limited, it is preferable to set the conditions so that even the interior of the plate material 1 can be sufficiently impregnated. In particular, by setting the thickness of the plate material 1 to 1 mm or more and 10 mm or less as described above, even impregnation can be achieved, and impregnation unevenness can be suppressed.
- the plate material processing composition may contain the above ceramic particles, and the ceramic particles can be arranged (fixed) inside the plate material 1 by impregnating the plate material 1 with the ceramic particles.
- the ceramic particles can be arranged (fixed) inside the plate material 1 by impregnating the plate material 1 with the ceramic particles.
- the impregnation that does not remain may be performed, for example, by impregnating the plate material 1 with an excessive amount of the plate material processing composition and then removing the ceramic particles remaining on the surface of the plate material 1, or by removing the ceramic particles that remain on the surface of the plate material 1.
- the surface of the sheet material 1 may be coated with the sheet material processing composition at the concentration and number of times of the sheet material processing composition.
- the drying step S4 is a step of drying the plate material 1 impregnated with the plate material processing composition.
- the slurry of the board processing composition remaining inside the holes 20 is also dried, and the insides of the holes 20 are filled with solids.
- Specific conditions for drying are not particularly limited, and drying can be performed, for example, by appropriately heating, decompressing, or the like in the above-mentioned kettle.
- the board material processing composition is fixed inside the board material 1 .
- the R processing step S5 is a step of manufacturing the curved plate material 1 by R processing (bending) the dried plate material 1 .
- the specific method of the R processing is not particularly limited, the plate member 1 can be bent into a desired shape by R processing the plate member 1 using an arbitrary jig (not shown).
- the R processing step S5 is not essential, and the flat plate material 1 may be used as it is without performing the R processing step S5 according to the specifications of the product. Further, the R processing step S5 may be performed before the drying step S4.
- the coating step S6 is a step of forming a surface coating layer 14 (Fig. 2) on the surface of the plate material 1 in which the plate material processing composition is fixed.
- a method for forming the surface coating layer 14 is not particularly limited.
- the surface coating layer 14 can be formed by applying a dispersion (or slurry) in which the components described in the above description of the surface coating layer 14 are dispersed in an arbitrary solvent (for example, water) and evaporating the solvent.
- the coating step S6 may or may not be performed depending on product specifications.
- the perforations (not shown) that may remain on the surface of the plate material 1 can be impregnated with the dispersion liquid, thereby further suppressing moisture absorption and improving the adhesion performance in the lamination step S8 described later. can be done.
- the coating step S6 is performed using the plate material processing composition containing ceramic particles, ceramic particles remain on the surface of the plate material 1 in the adhesive application step S7 (described later) in the same manner as in the impregnation step S3. It is preferable to coat the sheet material processing composition to the extent that it does not cause any cracking.
- the adhesive application step S7 is a step of applying an adhesive to the surface on which the surface coating layer 14 is formed. If the coating step S6 is not performed, the adhesive is applied to the surface that has undergone the drying step S4 or the R processing step S5.
- the surfaces to be coated are not necessarily both surfaces of the plate material 1, and the surface of at least one of the two adjacent plate materials 1 in the stacking step S8 described below is coated on the surface of the other plate material 1 side. All you have to do is
- the type of adhesive to be used is not particularly limited, but the adhesive described in connection with the adhesive layer 13 (FIG. 2) can be used.
- the lamination step S8 is a step of laminating the plate material 1 (FIG. 2) on which the surface coating layer 14 is formed as appropriate.
- the lamination step S8 first, at least two plate materials 1 are laminated so as to sandwich the adhesive applied in the adhesive application step S7. Similarly, the respective plate members 1 are laminated so that the desired number of plate members 1 are laminated, and the adhesive is solidified by appropriately heating, pressurizing, or the like. As a result, as shown in FIG. 2, a plate laminate 10 is formed by laminating the first plate member 11 and the second plate member 12 with the adhesive layer 13 interposed therebetween.
- the finished shape processing step S9 is a step of processing the plate material laminate 10 obtained in the stacking step S8 into a final finished shape.
- a specific method of processing is not particularly limited, and any method can be adopted.
- the finishing shape processing step S9 may or may not be performed depending on the specifications of the product.
- the outermost surface coating layer 15 (see FIG. 2 ).
- a method for forming the outermost coating layer 15 is not particularly limited.
- the outermost coating layer 15 can be formed by applying a dispersion (or slurry) obtained by dispersing the components described in the above description of the outermost coating layer 15 in an arbitrary solvent (for example, water) and evaporating the solvent.
- the outermost surface coating step S10 may or may not be performed depending on the specifications of the product.
- the pores 20 that may remain on the surface of the plate material 1 can be impregnated with the dispersion liquid, and moisture absorption can be further suppressed.
- the outermost surface 2 (FIG. 2) can be colored by, for example, including a pigment in the dispersion.
- the outermost surface 2 can be further heat-treated to carbonize the surface, thereby further improving the designability, for example.
- Example 1 boric acid (carbonization promoting component), ammonium dihydrogen phosphate (chain suppressing component), and silica sand (binder particles that are mixed powder with a particle size of 5 ⁇ m to 95 ⁇ m.
- Non-spherical, unsintered silicon dioxide were weighed out at a mass ratio of 1:6:2, and water was used as a solvent to prepare a 35% by mass slurry dispersion (composition for board material processing).
- Laminated lumber using cedar and cypress harvested in winter was cut into a plate with a width of 100 mm, a length of 100 m, and a thickness of 15 mm to produce a plate 1 (Fig. 1). At least two plates 1 were produced.
- the perforation step S2 (FIG. 3) was not performed.
- the composition for processing the plate material was fixed inside. After fixing, the dispersion liquid was applied to the surfaces of the plates 1 to which the adhesive was to be applied, and dried to evaporate the solvent.
- a surface coating layer 14 (FIG. 2) having a thickness of 10 ⁇ m was formed on the surface of each plate member 1 .
- one surface coating layer 14 is coated with an adhesive (Rokujirushi P Eye Bond 6000 manufactured by Oshika Co., Ltd.
- the main component is a water-based polymer isocyanate), and the two plate materials 1 are laminated. and solidified.
- a plate laminate 10 was produced by laminating the first plate member 11 and the second plate member 12 via the adhesive layer 13 having a thickness of 10 ⁇ m, both of which are shown in FIG. Then, the following non-combustibility test, immersion peeling test, and boiling peeling test were performed using the produced plate material laminate 10 .
- the non-combustible test was conducted by appropriately molding the plate material laminate 10 and performing it according to the method described in the "Fireproof performance test and evaluation business method" issued by the General Incorporated Association Building Materials Testing Center. As a result, the produced plate material laminate 10 had noncombustibility. The reason for this is thought to be that noncombustibility was exhibited because an inorganic heat insulating layer was formed by silica sand as binder particles in addition to the carbonization promoting component and the chain inhibiting component.
- the immersion peel test was performed as follows.
- the prepared plate laminate 10 was immersed in water at a water temperature of 10° C. to 20° C. for 6 hours, and then dried in a room at room temperature of 10° C. to 20° C. for 18 hours. This was defined as 1 cycle, and a total of 2 cycles were executed. After performing two cycles, when the laminated portion of the first plate member 11, the adhesive layer 13, and the second plate member 12 was visually confirmed, peeling was recognized between the first plate member 11, the second plate member 12, and the adhesive layer 13. I didn't. Therefore, it was confirmed that the first plate member 11 and the second plate member 12 had high adhesion ability.
- the boiling peeling test was performed as follows.
- the prepared plate laminate 10 was immersed in boiling water at a water temperature of 100° C. for 4 hours and then dried in a room at room temperature of 10° C. to 20° C. for 6 hours. After drying, when the laminated portion of the first plate material 11, the adhesive layer 13, and the second plate material 12 was visually confirmed, no peeling was observed between the first plate material 11, the second plate material 12, and the adhesive layer 13. . Therefore, it was confirmed that the first plate material 11 and the second plate material 12 had high adhesion ability even when exposed to conditions more severe than the immersion peel test.
- hydrophobic binder particles silicon sand
- hydrophobic binder particles are less likely to retain moisture. Therefore, the wood, which is an organic matter, and the carbonization promoting component and the chain inhibiting component are bonded together by the binder particles that are less likely to retain moisture. For this reason, it is considered that moisture is less likely to enter the inside, and peeling caused by the moisture inside can be suppressed.
- the hydrophobic binder particles can firmly bond the wood, the carbonization promoting component, the chain inhibiting component, and the adhesive layer 13 . Presumably, this enabled the suppression of the formation of gaps and the suppression of delamination caused by water intrusion into the gaps, resulting in excellent results in both the immersion delamination test and the boiling delamination test.
- Example 2 A plate material laminate 10 was produced in the same manner as in Example 1 except that the surface coating layer 14 was not formed, and a noncombustible test, an immersion peel test, and a boiling peel test were conducted. As a result, the produced plate material laminate 10 had noncombustibility. No peeling was observed in either the immersion peeling test or the boiling peeling test, confirming that the first plate material 11 and the second plate material 12 had high adhesive ability, as in Example 1.
- a plate material laminate 10 was produced in the same manner as in Example 1 except that silica sand (binder particles) was not used, and a noncombustibility test, an immersion peeling test, and a boiling peeling test were performed. As a result, the produced plate material laminate 10 had noncombustibility. However, in both the immersion peel test and the boiling peel test, a large peel exceeding 10 mm was observed. Therefore, it turned out that the adhesion ability of the 1st board
- FIG. 5 is a top view of the plate member 1 used in Example 3.
- FIG. 6 is a cross-sectional view taken along the line AA of FIG. 5.
- the plate material 1 shown in FIGS. 5 and 6 was produced by the perforating step S2 (FIG. 3) using the bar member 1022 (FIG. 4).
- the holes 20 are formed at regular intervals and all have the same shape.
- the thickness L1 of the plate member 1 is 20 mm, the holes 20 are circular in top view, and are formed in plural on both sides of the plate member 1 .
- the size (diameter) L2 of the holes 20 is 0.5 mm to 1 mm, the interval L3 between adjacent holes 20 is 10 mm, and the depth L4 of the holes 20 is 3 mm.
- the depth of one hole 20 is 15% of the thickness of the plate 1 , but the holes 20 are formed in two surfaces 110 respectively, so the total depth is 30% of the thickness of the plate 1 . %. Then, the mass of the produced plate material 1 was measured.
- a plate material 1 having holes 20 was placed in the plate material processing composition of Example 1 and boiled for 2 hours. After 2 hours, it was taken out, allowed to cool to 20°C naturally, and then washed with water. After washing with water, it was sufficiently dried and the mass was measured. Then, the weight of the impregnated board processing composition was determined by subtracting the weight before boiling from the weight after boiling. The above operation was performed 4 times in total.
- Example 4 The mass of the board processing composition was determined in the same manner as in Example 3, except that the hole 20 was not provided.
- the plate stack 10 including the plurality of plates 1 can be made thicker, and the plate stack 10 can be used for various purposes. That is, although the board processing composition of the present disclosure can be used for the board laminate 10, it can also be used for the unlaminated single-layer board 1.
- Ceramic particles were further added to the composition for processing a plate material of Example 1 to prepare a composition for processing a plate material of Example 5.
- silica sintered silicon dioxide
- a diameter of 8 ⁇ m average particle diameter based on laser diffraction scattering method
- the plate material processing composition of Example 5 was applied once to the surface of the plate material 1 and dried.
- the plate material processing composition impregnated the inside of the plate material 1 by coating, and a thin film having a thickness of 0.1 ⁇ m was formed on the surface by drying. Since the thin film is thinner than the size of the ceramic particles, it is considered that the ceramic particles impregnated the interior of the plate material 1 .
- the adhesive used in Example 1 was applied to the surface of the thin film, and the plate material laminate 10 of Example 5 was produced in the same manner as in Example 1 thereafter. However, in Example 5, the plate material laminate 10 was produced using three plate materials 1 . Therefore, the two outermost plate members 1 are bonded to the central plate member 1 via the underlying layer and the adhesive layer 13 .
- FIGS. 7 and 8 A noncombustible test and a peeling test (immersion peeling test and boiling peeling test) were performed on each of the plate material laminates 10 of Example 5 and Example 1 (without ceramic particles) as a reference example. The results are shown in FIGS. 7 and 8.
- FIG. 7 A noncombustible test and a peeling test (immersion peeling test and boiling peeling test) were performed on each of the plate material laminates 10 of Example 5 and Example 1 (without ceramic particles) as a reference example. The results are shown in FIGS. 7 and 8. FIG.
- FIG. 7 is a drawing-substituting photograph showing the results of the non-combustibility test according to Example 5.
- the plate 1 that came into contact with the flame (the bottom plate 1 including the blackened portion (carbonized portion) in the photograph) is the remaining two plates 1.
- carbonization was suppressed to only one sheet material 1 arranged on the outermost side. It is considered that this is because the plate material 1 in contact with the flame is separated from the remaining two plate materials 1 to form a gap, and the gap makes it difficult for the heat to be transferred to the remaining two plate materials 1 .
- the remaining two plates 1 were not carbonized.
- the detached plate material 1 was warped, no major damage such as penetration, breakage, or collapse occurred. None of the plate members 1 burned during the test, and no harmful smoke or the like was generated. Further, when viewed as a whole of the plate material laminate 10, the plate material 1 that is neither carbonized nor warped can be considered as the base material, and the plate material 1 that is carbonized and warped can be considered as the surface layer material. Considering this, it can be said that the form of the base material could be maintained without carbonizing and deforming the base material by carbonizing and warping only the surface layer material.
- FIG. 8 is a drawing-substituting photograph showing the results of a non-flammable test according to a reference example (Example 1).
- a reference example Example 1
- the plate material 1 in the plate material laminate 10 was not separated.
- the blackened portion (carbonized portion) of the laminated sheet material 10 extends to the central sheet material 1 in addition to the sheet material 1 on the outermost surface shown at the top of the photograph. rice field. Therefore, carbonization progressed more than in Example 5. It is considered that this is because carbonization progressed continuously because the plate members 1 were adhered to each other.
- the plate material 1 did not suffer any major damage such as penetration, breakage, or collapse. None of the plate materials 1 burned during the test, and no harmful smoke or the like was generated. Therefore, it was confirmed that the plate material laminate 10 of the reference example also had noncombustibility.
- the plate material 1 was not peeled off in any of the plate material laminates 10 of Example 5 and Reference Example (Example 1). Therefore, the plate laminate 10 of Example 5 has a peel strength at least equivalent to that of the plate laminate 10 of the reference example, and has a higher non-combustibility than the plate laminate 10 of the reference example. Therefore, whether ceramic particles are used or not depends on whether the plate material 1 and the plate material laminate 10 are used as an interior material, an exterior material (where scaffolding is required), a structural material, a surface layer material (strictly ensuring strength), or the like. It can be said that it should be determined depending on whether it is used for such purpose. Therefore, according to the present disclosure, an advantage is obtained that the user can arbitrarily select the construction method.
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Abstract
Description
本開示が解決しようとする課題は、不燃性と高接着性能とを有する板材積層物を製造可能な板材加工用組成物、板材積層物及び板材積層物の製造方法の提供である。
<実施例1>
ホウ酸(炭化促進成分)と、リン酸二水素アンモニウム(連鎖抑制成分)と、珪砂(粒径5μm~95μmの混合粉末であるバインダ粒子。非真球状で、焼結していない二酸化ケイ素)とを、質量比で1:6:2の割合で秤量し、溶媒として水を用いて、35質量%のスラリー状の分散液(板材加工用組成物)を作製した。
表面コーティング層14を形成しなかったこと以外は実施例1と同様にして板材積層物10を作製し、不燃試験、浸漬剥離試験、及び煮沸剥離試験を行った。この結果、作製した板材積層物10は不燃性を有していた。また、浸漬剥離試験及び煮沸剥離試験のいずれにおいても剥離は認められず、実施例1と同様に、第1板材11及び第2板材12は、高い接着能力を有することが確認できた。
珪砂(バインダ粒子)を使用しないこと以外は実施例1と同様にして板材積層物10を作製し、不燃試験、浸漬剥離試験、及び煮沸剥離試験を行った。この結果、作製した板材積層物10は不燃性を有していた。しかし、浸漬剥離試験及び煮沸剥離試験のいずれにおいても、10mmを超える大きな剥離が認められた。従って、第1板材11及び第2板材12の接着能力は低いことが分かった。この理由は、炭化促進成分及び連鎖抑制成分が吸湿した結果、内部の水分に起因して剥離が生じたと考えられる。また、これらは弱い接着力で接着しているため、これらの間に隙間が生じ易い。このため、水分が隙間に侵入し易いため、更に、侵入した水分に起因して剥離が生じたと考えられる。
<実施例3>
図5は、実施例3で使用した板材1の上面図である。図6は、図5のA-A線断面図である。棒部材1022(図4)を用いた穿孔工程S2(図3)により、図5及び図6に示す示す板材1を作製した。孔20は等間隔で形成され、いずれも同じ形状を有する。板材1の厚さL1は20mmで、孔20は、上面視で円形であり、板材1の両面に複数個形成した。孔20の大きさ(直径)L2は、0.5mm~1mm、隣接する孔20の間隔L3は10mm、孔20の深さL4は3mmとした。1つの孔20の深さは、板材1の厚さに対して15%であるが、孔20は、2つの表面110にそれぞれ形成されるため、合計で、板材1の厚さに対して30%である。そして、作製した板材1の質量を測定した。
孔20を備えないこと以外は実施例3と同様にして、板材加工用組成物の質量を決定した。
実施例3及び実施例4の結果を下記の表1に示す。
<実施例5>
実施例1の板材加工用組成物に対し更にセラミック粒子を添加し、実施例5の板材加工用組成物を作製した。セラミック粒子は、真球状で大きさ直径8μm(レーザー回折式散乱法に基づく平均粒径)のシリカ(二酸化ケイ素の焼結体)を使用し、使用量は、板材加工用組成物に対して1質量%とした。
10 板材積層物
11 第1板材
12 第2板材
13 接着層
14 表面コーティング層
15 最表面コーティング層
2 最表面
S1 製材工程
S2 穿孔工程
S3 含浸工程
S4 乾燥工程
S5 R加工工程
S6 コーティング工程
S7 接着剤塗布工程
S8 積層工程
S9 仕上げ形状加工工程
S10 最表面コーティング工程
Claims (16)
- 加熱による板材の燃焼を抑制する板材加工用組成物であって、
前記加熱時に前記板材中の有機成分の炭化を促進させる無機性の炭化促進成分と、
前記加熱時に生じる吸熱分解の生成物によって近接する成分への反応連鎖を抑制する無機性の連鎖抑制成分と、
前記板材中の前記有機成分と、前記炭化促進成分及び前記連鎖抑制成分と、を接着する無機性かつ疎水性のバインダ粒子と、を含む
ことを特徴とする板材加工用組成物。 - 前記炭化促進成分の粒径が10μm以上50μm以下である
ことを特徴とする請求項1に記載の板材加工用組成物。 - 前記バインダ粒子の粒径が1μm以上100μm以下である
ことを特徴とする請求項1又は2に記載の板材加工用組成物。 - 前記炭化促進成分はホウ酸を含み、
前記連鎖抑制成分はリン酸二水素アンモニウムを含み、
前記バインダ粒子は珪砂を含む、
ことを特徴とする請求項1又は2に記載の板材加工用組成物。 - 前記板材加工用組成物は、板材への含侵用薬剤である
ことを特徴とする請求項1又は2に記載の板材加工用組成物。 - 前記板材加工用組成物は、板材表面へのコーティング剤である
ことを特徴とする請求項1又は2に記載の板材加工用組成物。 - セラミック粒子を含む
ことを特徴とする請求項1又は2に記載の板材加工用組成物。 - 前記セラミック粒子は真球状である
ことを特徴とする請求項7に記載の板材加工用組成物。 - 請求項1に記載の板材加工用組成物を含侵させた第1板材と、
請求項1に記載の板材加工用組成物を含侵させた第2板材と、
前記第1板材と前記第2板材とを接着する接着層とを備える
ことを特徴とする板材積層物。 - 前記第1板材及び前記第2板材のそれぞれの厚さは、1mm以上10mm以下である
ことを特徴とする請求項9に記載の板材積層物。 - 前記第1板材又は前記第2板材の少なくとも一方の表面に、表面コーティング層を備える
ことを特徴とする請求項9又は10に記載の板材積層物。 - 前記表面コーティング層は、前記炭化促進成分と前記連鎖抑制成分と前記バインダ粒子とを含む
ことを特徴とする請求項11に記載の板材積層物 - 前記表面コーティング層は、珪砂を含む
ことを特徴とする請求項11に記載の板材積層物。 - 最表面に、最表面コーティング層を備える
ことを特徴とする請求項9又は10に記載の板材積層物。 - 前記最表面コーティング層は、顔料、抗菌剤、抗ウイルス剤又は撥水剤の少なくとも何れか1つの無機性の添加剤を含む
ことを特徴とする請求項14に記載の板材積層物。 - 請求項1に記載の板材加工用組成物を含侵させた第1板材と、請求項1に記載の板材加工用組成物を含侵させた第2板材と、前記第1板材と前記第2板材とを接着する接着層とを備える板材積層物の製造方法であって、
前記第1板材又は前記第2板材の少なくとも一方の板材の表面に棒部材の先端を押し込むことで孔を形成する穿孔工程と、
前記孔を形成した前記板材に前記板材加工用組成物を含侵させる含浸工程と、を含む
ことを特徴とする板材積層物の製造方法。
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AU2022262491A AU2022262491B2 (en) | 2021-04-23 | 2022-03-30 | Board material processing composition, board material laminate, and method for manufacturing board material laminate |
EP22791557.6A EP4309862A1 (en) | 2021-04-23 | 2022-03-30 | Board material processing composition, board material laminate, and method for manufacturing board material laminate |
CA3217067A CA3217067A1 (en) | 2021-04-23 | 2022-03-30 | Board material processing composition, board material laminate, and method for manufacturing board material laminate |
JP2023516407A JP7329294B2 (ja) | 2021-04-23 | 2022-03-30 | 板材加工用組成物、板材積層物及び板材積層物の製造方法 |
JP2023123360A JP7365743B2 (ja) | 2021-04-23 | 2023-07-28 | 板材コーティング剤及び板材 |
US18/520,889 US20240093041A1 (en) | 2021-04-23 | 2023-11-28 | Board material processing composition, board material laminate, and method for manufacturing board material laminate |
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JPS51127596A (en) * | 1975-04-29 | 1976-11-06 | Matsushita Electric Works Ltd | Blowing fireproofing agent |
US4168175A (en) * | 1978-04-26 | 1979-09-18 | Vitrofil Corporation | Fire retardant compositions |
JPH02116505A (ja) * | 1988-10-26 | 1990-05-01 | Matsushita Electric Works Ltd | 改質合板 |
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JPH0699407A (ja) * | 1992-09-21 | 1994-04-12 | Kyogyo Kumiai Sendai Fuanichia | 改質木材の製法 |
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JP2012081603A (ja) | 2010-10-07 | 2012-04-26 | Ars Inc | 難燃化・準不燃化・不燃化木材 |
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AU2022262491B2 (en) | 2024-02-01 |
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