JPH04250239A - Moisture regulating panel and interior construction having moisture regulating property - Google Patents

Abstract

PURPOSE:To enable a cost to be reduced, and arrange non-moisture-regulating sections, and prevent the corrosion of nails and the hardening, deterioration, and the like of adhesives from being generated, with the use of the non-moisture- regulating sections, and enable the same work as that of normal panels, to be executed by distributing a high humidity layer near a panel surface, to display the capacity of moisture regulating material at maximum, and by making the area to be used, of the moisture regulating material, less. CONSTITUTION:Inorganic moisture-regulating material 1 with the moisture regulating property of the relative humidity of 40-90% RH applied by retaining a moisture absorbing filler internally, and non-moisture-regulating material 2 are alternately connected or arranged, and a moisture regulating panel A is set.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to an interior structure that maximizes the humidity control performance of humidity control materials when finishing ceilings and walls of storage warehouses, museums, and other rooms that require humidity control properties. Regarding humidity control panels for use.

0002

[Prior Art] Traditionally, wood and other materials have been used for storage warehouses, museums, etc. because of their good moisture absorption and desorption properties, but due to fire prevention issues, inorganic noncombustible materials have come to be used. It has come.

However, ordinary noncombustible materials have poor humidity response (for example, cement and gypsum have a relative humidity of 90%).
Below RH, the humidity responsiveness per 1% relative humidity change is 0.1 wt% or less. ), there were problems such as having an adverse effect on stored goods and causing dew condensation on the inner wall surface.

[0004] For this reason, anti-condensation paints have been applied to the surfaces, but since the amount of moisture retained is proportional to the thickness of the material, there is a limit to how paints can improve humidity responsiveness.

[0005] Recently, boards have been made of inorganic materials that have excellent humidity responsiveness equal to or better than wood, and are used for such purposes, and the inventor also added chloride to cement and gypsum. Hygroscopic fillers such as calcium are added internally to maintain normal indoor environment (relative humidity 40-90%RH).
), we have created a humidity-responsive panel and studied its humidity control properties.

However, these are several times more expensive than wood or general-purpose cement boards or plaster boards, and are inferior in toughness and hardness, making it difficult to attach them simply with nails or adhesives as in the past. Ta. That is, when nailing, cutting to match the interior dimensions of a room, or providing notches for equipment or power distribution, etc., cracks and chips tend to occur, making processing difficult.

Furthermore, when using metal objects such as bolts and nails, they tend to rust due to hygroscopic fillers and aggregated water, and when using adhesives, there is a risk of inhibiting the curing reaction or accelerating deterioration after curing. There were drawbacks.

On the other hand, according to the inventor's research, indoor humidity normally diffuses into the air, but moisture collects near the surface of a humidity control panel that has high humidity response, resulting in high humidity near the panel surface. We discovered a problem in that the formation of a layer (a boundary layer with a moisture scent) inhibits the collection of moisture in the room and does not fully demonstrate the moisture absorption and release function that humidity control panels should have.

[0009] Therefore, there is a drawback that effective humidity responsiveness cannot be exhibited in a place where there is no air circulation, such as in a storage room.

0010

[Problems to be solved by the invention] The problems to be solved by the present invention are:
When applying a high humidity control panel as an interior material, the first problem is that a high humidity layer is generated near the front of the high humidity control panel, making it impossible to exert effective humidity control ability.The second problem is that the entire panel If all the panels are made of high humidity control material, the material price will be very high. Thirdly, if all the panels are made of high humidity control material, the nailing performance and cutting workability will be poor, and the moisture contained in the panel will cause nails to break. Normal construction is not possible due to rust, inhibition of adhesive hardening, and deterioration.

[0011]

[Means for Solving the Problems] The humidity control panel according to the present invention is an inorganic humidity control material (1) which has humidity control properties at a relative humidity of 40 to 90% RH by internally adding and retaining a hygroscopic filler. The humidity control panel (A) is made by alternately connecting or arranging and integrating the humidity control material (2) and the non-humidity control material (2). As a result, a moisture control panel (A) with fire retardant properties
When applied as an interior material, the humidity control panel (A) maintains the designed humidity control performance and exhibits humidity control performance that approaches conventional construction methods, workability, and price.

[0012] Furthermore, in the interior structure of the present invention to which the humidity control panel (A) is applied, at least one interior surface of the room is provided with:
By retaining the hygroscopic filler internally, the relative humidity can be reduced to 4.
Inorganic humidity control material that has humidity control properties at 0 to 90% RH (
It is characterized by alternately connecting or arranging 1) and non-humidity control material (2), which allows separate moisture control material (1) and non-humidity control material (2) to be used as interior materials on-site. By installing them in alternate combinations depending on the situation, we were able to increase versatility.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below according to illustrated embodiments. Moisture control material (1) is an inorganic plate such as gypsum, cement, calcium silicate, rock wool, or ceramic sintered body with a hygroscopic filler added thereto. Examples of the hygroscopic filler include calcium chloride, lithium chloride, etc. deliquescent substances, organic compounds such as diethylene glycol and sodium polyacrylate, inorganic hygroscopic materials such as bentonite, zeolite, and xonotlite, and insoluble polymeric materials such as grafted starch and isobutylene maleic anhydride.

[0014] As for the internal addition method, the hygroscopic filler is kneaded when forming the humidity control material into a plate, or it is impregnated after forming the plate. In particular, it is preferable to mix calcium chloride, diethylene glycol, etc. with water to an inorganic hygroscopic material such as bentonite, mix it with a hydraulic material such as cement or gypsum, and harden it because the hygroscopic filler does not ooze out. The panel-shaped humidity control material (1) thus formed has a relative humidity of 40
It has humidity control properties at ~90% RH.

The non-humidity control material (2) is a commonly used inorganic board such as gypsum board, slate board, calcium silicate board, slag gypsum board, wood chip cement board, ALC, rock wool board, etc., and does not interfere with fire prevention. Resin plates such as foamed phenol may be used as long as they are not included.

[0016] The humidity control panel (A), for example, is made by alternating between a humidity control material (1) containing a hygroscopic filler and a non-humidity control material (2) having no humidity control function, as shown in Fig. 1. Place it in
The sides can be glued together to form a single panel, or as shown in Figure 2, a humidity control material (1) and a non-humidity control material can be placed on an inorganic substrate (3) such as gypsum board or slate board. (2) and are glued together in a mosaic pattern to form a panel. These are prepared in advance at the factory as humidity control materials (1
) and non-humidity control material (2) arranged as shown in Figures 1 and 2.
In one panel (A), the non-moisture control material (2) part can be selected as the part to which nails or adhesive (2) are attached. Of course, the arrangement method is not limited to these, and any suitable arrangement method can be used. In addition, for the interior structure, in addition to installing a plurality of the above-mentioned humidity control panels (A), when forming a large humidity control surface, for example, a panel-shaped humidity control material (1) formed in a size of 3 x 6. Panel-shaped non-humidity control material (
2) may be applied alternately on-site. In addition, in order to maximize the humidity control performance, the experiments described below revealed that the humidity control material and non-humidity control material should be arranged alternately at a ratio of 6:4. Humidity control materials are alternately connected and integrated so that the area ratio is more than half that of non-humidity control materials.

The humidity control panel (A) of the present invention comprises a humidity control material (
Since 1) and the non-humidity control material (2) are connected and integrated alternately, the high humidity layer (4) near the surface of the humidity control material (1) becomes large, but the high humidity layer (4) adjacent to the humidity control material (1) increases in size. non-humidity controlling material (2
) is not formed in the vicinity of the surface, the high humidity layer (4) shrinks in the area corresponding to the non-humidity control material (2) on the entire configured surface. Therefore, the high humidity layer (4) can be dispersed, and when used as an interior material, effective humidity responsiveness can be exhibited.

Furthermore, even if the humidity control panel (A) according to the present invention has the humidity control material (1) and the non-humidity control material (2) connected and integrated in an alternating manner, the humidity control performance does not deteriorate. , exhibits moisture absorbing and releasing ability (humidity responsiveness) with a smaller humidity control area compared to a humidity control panel that is entirely formed of the humidity control material (1). Therefore, even if an inexpensive non-humidity control material (2) such as a cement board or a gypsum board is used between the humidity control materials (1), the humidity control performance will not deteriorate, and costs can be reduced.

Furthermore, even if the non-humidity control material (1), which is easy to cut, is brought to the size adjustment position or the wiring position, the humidity control performance is not impaired, and its applicability as an interior material is very high.

[0020] Furthermore, if the panel (A) is formed in advance in a factory or the like by incorporating the humidity control material (1) and the non-humidity control material (2) alternately, the non-humidity control material (2) can be connected to an outlet etc. It can be cut to fit the base material such as studs and attached with nails or adhesives like conventional panels, and can be easily installed without cracking or chipping. .

{Experimental example} The moisture control material (1) used in the experiment was formulated in a weight ratio of Portland cement: bentonite (hygroscopic filler): wollastonite (reinforcing fiber): water: Cacl2.2H2O (hygroscopic (sexual filler): methylcellulose (thickener) = 400:260:265:
The mixture was kneaded and then extruded to form a board with a thickness of 15 mm. The dry specific gravity of the board is 1.28. As the non-humidity control material (2), a commercially available gypsum board with a thickness of 15 mm was used. The difference in moisture absorption response between the two is shown in Figures 4 and 5.

FIG. 3 shows humidity control material (1) and non-humidity control material (2).
This shows the relationship between the humidity response and relative humidity of a board made of bentonite as a humidity control material (1) and a board made of gypsum as a non-humidity control material (2). Changes in rates were compared. The vertical axis shows changes in moisture content, and the horizontal axis shows relative humidity. Humidity control responsiveness indicates the amount of change in material moisture content per 1% change in relative humidity. Humidity control material (1) has a daily relative humidity of 40 to 90
%RH (in particular, the water content increases linearly in the range of 50 to 70% RH, and increases exponentially above that range). On the other hand, it can be seen that the non-humidity control material (2) made of gypsum board has a humidity response of only 1/10 or less.

FIG. 4 shows a comparison graph of humidity responsiveness between the humidity control material (1) and the non-humidity control material (2). In the figure,
The vertical axis represents the weight ratio (wt%) of water content to the weight of the material, and the horizontal axis represents relative humidity. The dashed line (a) shows the humidity responsiveness of wood, the solid line (b) shows the humidity responsiveness of the humidity control material (1) according to the present invention, and the broken line (c) shows the humidity response of the non-humidity control material (1).
2). Although the humidity response of wood and the humidity control material (1) of the present invention is almost the same, the specific gravity of wood is 0.4 to 0.
．． 6, and the humidity control material (1) of the present invention has a moisture content of 1.28, which is 2 to 3 times that of wood, so it can be said that the moisture content is 2 to 3 times that of wood. Moreover, when comparing the humidity control material (1) and the non-humidity control material (2), the humidity control material (1) has a relative humidity of 40 to 90%R.
In the H range (particularly 50-80% RH), the water content increases proportionally. At higher relative humidity, the water content increases exponentially. On the other hand, the non-humidity conditioning material (2) is the humidity conditioning material (
Compared to 1), the water content does not increase much even within the above range.

Next, an example will be described in which the humidity control panel (A) of the present invention is compared with a humidity control panel entirely composed of a humidity control material. The floor area is equivalent to 6 tatami mats (H=2,
The humidity control material (1) of the humidity control panel (A) of the present invention was prepared using a reinforced concrete model room having a volume of
) and compared it with a humidity control panel made entirely of humidity control material while changing the interior ratio, and measured the humidity responsiveness. The experimental method was to artificially generate water vapor in a room and then measure the time required to adjust the humidity to return to the original relative humidity. Note that the amount of humidification was 200 g/30 minutes, and was done only once. or,
The room was completely sealed and there was no wind. Humidity control panel (A
) has a size of 600 x 2,400, and the interior ratio of humidity control material (1) is 60% (= 400 mm plaster boat, which is non-humidity control material (2)), and 50% (= non-humidity control material). (
2), the gypsum boat was set to 600 mm. ) and 60
% (= 900 mm of a gypsum boat, which is a non-humidity control material (2)). The experimental results are shown in FIG. The horizontal axis represents time, and the vertical axis represents relative humidity. The panel (A) with an interior coverage ratio of 60% achieved a humidity control speed equivalent to that of a panel made entirely of humidity control material.

[0025]

[Effects of the Invention] Since the present invention has the configuration as described above,
When applying a humidity control panel as an interior material, firstly, it is difficult to form a high humidity layer near the panel surface and exhibits effective humidity control ability, and secondly, it requires only a small amount of humidity control surface. Thirdly, the non-humidity control area can be used for nailing and gluing work.

[Brief explanation of the drawing]

[Fig. 1] A perspective view of a first embodiment of a humidity control panel according to the present invention.

[Fig. 2] A perspective view of a second embodiment of the humidity control panel according to the present invention.

[Figure 3] Comparison graph of humidity control response between humidity control material and non-humidity control material used in the present invention

[Figure 4] A graph comparing the changes in moisture content between the humidity control material used in the present invention, non-humidity control materials, and wood.

[Figure 5] Comparison graph of humidity control performance between humidity control panels of the present invention with different interior ratios and panels made of full humidity control material

[Explanation of symbols]

(A)…Humidity control panel (1)…Humidity control material (2)…Non-humidity controlling material (3)...Inorganic substrate

Claims (2)

[Claims] [Claim 1] An inorganic humidity control material and a non-humidity control material which have humidity control properties at a relative humidity of 40 to 90% RH by internally adding and holding a hygroscopic filler and a non-humidity control material are alternately connected or arranged integrally. Humidity control panel with special features. [Claim 2] By retaining a hygroscopic filler internally on at least one interior surface of the room, the relative humidity can be reduced to 40%.
An interior structure having humidity control properties characterized by having a humidity control surface formed by alternately connecting or arranging inorganic humidity control materials and non-humidity control materials imparting humidity control properties at ~90% RH.