JP2018188744A - Refractory material, clothes, housing material and manufacturing method of refractory material - Google Patents

Abstract

Disclosed is a refractory material that can withstand higher temperatures. A refractory material 2 includes a porous base material 21 and metal oxide fine particles (tungsten oxide fine particles 23) disposed in a plurality of holes 24 of the base material. [Selection] Figure 2

Description

  The present invention relates to a refractory material, clothes, building materials, and a method for producing the refractory material.

  Conventionally, a flame-resistant heat-resistant fabric, which is one of the refractory materials, is a fabric including a meta-type aromatic polyamide fiber and a polyvinyl chloride fiber, and the weight ratio of the polyvinyl chloride fiber contained in the fabric is set to the total weight of the fabric. The thing made into 5 to 50 weight% with respect to a weight is known (for example, refer patent document 1).

JP 2003-221754 A

  In the above-mentioned refractory material, since chemical fibers are employed, for example, it is actually impossible to withstand at a high temperature of 1000 degrees or more.

  Then, an object of this invention is to provide the manufacturing method of a refractory material, clothes, building materials, and a refractory material which can endure higher temperature.

  In order to achieve the above object, a refractory material according to one embodiment of the present invention includes a porous base material and metal oxide fine particles disposed in a plurality of pores of the base material.

  Moreover, the clothing which concerns on 1 aspect of this invention is formed from the said refractory material.

  Moreover, the building material which concerns on 1 aspect of this invention is formed from the said refractory material.

  In addition, the method for producing a refractory material according to one embodiment of the present invention includes impregnating a porous base material with a suspension containing metal oxide fine particles so that the metal oxide fine particles are contained in the plurality of pores of the base material. Place.

  ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the refractory material, clothes, building material, and refractory material which can endure higher temperature can be provided.

1 is a perspective view showing clothes according to Embodiment 1. FIG. FIG. 2 is an enlarged cross-sectional view showing a part of the refractory material according to the first embodiment. FIG. 3 is a flowchart showing the flow of the method for manufacturing the refractory material according to the first embodiment. FIG. 4 is a perspective view showing a schematic configuration of the building material according to the second embodiment. FIG. 5 is an enlarged photograph of the surface portion of the building material according to the second embodiment. FIG. 6 is a cross-sectional view schematically illustrating the building material according to the second embodiment.

  Below, the refractory material which concerns on embodiment of this invention is demonstrated in detail using drawing. Each of the embodiments described below shows a specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangements, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a mimetic diagram and is not necessarily illustrated strictly. Therefore, for example, the scales and the like do not necessarily match in each drawing. Moreover, in each figure, the same code | symbol is attached | subjected about the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

[Embodiment 1]
[Constitution]
First, the outline | summary of the clothing 1 which concerns on this Embodiment is demonstrated using FIG. FIG. 1 is a perspective view showing clothing 1 according to Embodiment 1. FIG.

  Here, the clothes 1 are clothes having fire resistance. In the present embodiment, the case where the clothes 1 are upper garments will be described as an example, but the clothes may be lower garments. As shown in FIG. 1, the clothing 1 is formed by sewing a flexible sheet-like refractory material 2. Hereinafter, the refractory material 2 will be described in detail.

  FIG. 2 is an enlarged sectional view showing a part of the refractory material 2 according to the first embodiment. In addition, in FIG. 2, it is sectional drawing which cut | disconnected the surface vicinity part of the refractory material 2 by the surface parallel to the surface. As shown in FIG. 2, the refractory material 2 includes a flexible base material 21 and a plurality of tungsten oxide fine particles 23.

  The base material 21 is a porous base material, for example, a non-woven fabric made of at least one of natural fibers and chemical fibers. The base material 21 which is a nonwoven fabric is formed by many fibers 22 being entangled. As shown in FIG. 2, when the base material 21 is enlarged, a hole 24 is formed between adjacent fibers 22. A large number of hole portions 24 are formed as a whole of the base material 21, and the base material 21 can be said to be a porous base material.

  In addition, in this Embodiment, although the nonwoven fabric was illustrated and demonstrated as the base material 21 which comprises the refractory material 2, as long as the base material 21 which comprises the refractory material 2 is a porous cloth which has a softness | flexibility, it will be anything. Good. Examples of the other substrate 21 include woven fabric and knitted fabric. In the case of woven fabrics and knitted fabrics, yarns composed of at least one of natural fibers and chemical fibers are used. A hole is formed between adjacent fibers forming the yarn. That is, in the woven fabric and the knitted fabric, a large number of holes are formed as a whole, and the knitted fabric and the woven fabric can be said to be porous substrates.

The tungsten oxide fine particles 23 are powders made of tungsten oxide (WO ₃ ), and the particle size (average particle size) is 0.1 μm or more and 15 μm or less. The tungsten oxide fine particles 23 are disposed in the plurality of holes 24 of the base material 21. Specifically, the tungsten oxide fine particles 23 are arranged in the hole 24 having a size larger than the particle size of the tungsten oxide fine particles 23 among the plurality of holes 24 of the base material 21. Only one tungsten oxide fine particle 23 may be arranged in one hole 24, or a plurality of tungsten oxide fine particles 23 may be arranged. When a plurality of tungsten oxide fine particles 23 are arranged in one hole 24, the plurality of tungsten oxide fine particles 23 are dispersed in the depth direction of the hole 24 and / or the direction perpendicular to the depth direction. May be. Further, the tungsten oxide fine particles 23 may be disposed inside all of the plurality of hole portions 24 or may be disposed only inside some of the hole portions 24.

[Production method]
Next, the manufacturing method of the refractory material 2 which concerns on this Embodiment is demonstrated. FIG. 3 is a flowchart showing a flow of a manufacturing method of the refractory material 2 according to the first embodiment. In this manufacturing method, an impregnation process is used. Specifically, as shown in FIG. 3, in step S1, a suspension containing a plurality of tungsten oxide fine particles 23 is prepared. In step S2, the base material 21 is accommodated in the vacuum chamber of the impregnation apparatus. In step S3, the vacuum chamber is evacuated. In step S4, the suspension is injected into the vacuum chamber. Thus, the suspension 24 is impregnated with the suspension in the hole portion 24 of the base material 21, whereby the tungsten oxide fine particles 23 are arranged in the hole portion 24. In step S5, the base material 21 is taken out of the vacuum chamber, and the base material 21 is washed, dried, and the like, thereby removing the liquid of the suspension and completing the refractory material 2. Depending on the type of liquid in the suspension, it may not be necessary to remove the liquid from the base material 21.

  In addition, the manufacturing method demonstrated here is an example and it is possible to use another impregnation process. As another impregnation method, for example, the base material 21 is immersed in a suspension containing a plurality of tungsten oxide fine particles 23, and the tungsten oxide fine particles 23 are impregnated in the pores 24 of the base material 21 by applying high pressure. The processing method to do is mentioned.

[Effects, etc.]
As described above, the refractory material 2 according to the present embodiment includes the porous base material 21 and the tungsten oxide fine particles 23 disposed in the plurality of holes 24 of the base material.

  Moreover, the clothes 1 which concern on this Embodiment are formed from the said refractory material 2. FIG.

  Moreover, the manufacturing method of the refractory material 2 which concerns on this Embodiment impregnates the suspension containing the tungsten oxide microparticles | fine-particles 23 with respect to the porous base material 21, and the some hole 24 of the base material 21 is carried out. Inside, tungsten oxide fine particles 23 are arranged.

  According to this, since the tungsten oxide fine particles 23 are disposed in the plurality of pores 24 of the porous base material 21, when the entire base material 21 is viewed, the plurality of tungsten oxide fine particles 23 are dispersed. It is in a state. These tungsten oxide fine particles 23 thermally protect the base material 21 inside the base material 21. And since melting | fusing point of the tungsten oxide fine particles 23 is 1000 degreeC or more, it is possible to raise the heat-resistant temperature of the refractory material 2 and the clothes 1 more. Further, since the tungsten oxide fine particles 23 are oxides, they are difficult to burn. For this reason, the fire resistance of the refractory material 2 and the clothes 1 can be improved.

  Further, since the plurality of tungsten oxide fine particles 23 are dispersed as a whole of the base material 21, radiation can be shielded by the tungsten oxide fine particles 23.

  The tungsten oxide fine particles 23 have a particle size of 0.1 μm or more and 15 μm or less.

  According to this, since the particle diameter of the tungsten oxide fine particles 23 is not less than 0.1 μm and not more than 15 μm, the tungsten oxide fine particles 23 can be disposed in the minute gaps (holes 24) between the fibers 22 forming the base material 21. it can.

[Embodiment 2]
In Embodiment 1, the case where the refractory material 2 was employ | adopted for the clothes 1 was illustrated. In this Embodiment 2, the case where a refractory material is employ | adopted as a building material is demonstrated. In the following description, the same parts as those in the first embodiment may be denoted by the same reference numerals and the description thereof may be omitted.

  FIG. 4 is a perspective view showing a schematic configuration of the building material 10 according to the second embodiment. FIG. 5 is an enlarged photograph of the surface portion of the refractory material 2A according to the second embodiment. FIG. 6 is a cross-sectional view schematically showing the refractory material 2A according to Embodiment 2 in an enlarged manner.

  As shown in FIGS. 4 to 6, the building material 10 is formed of a refractory material 2A. This refractory material 2A is manufactured by a manufacturing method using the same impregnation treatment as in the first embodiment. The refractory material 2 </ b> A includes a base material 21 a and a plurality of tungsten oxide fine particles 23.

  The base material 21a is wood and includes a number of conduits. This conduit forms the hole 24a. In addition, the base material 21a should just be a porous material used for a building. For example, examples of porous substrates other than wood include paper materials such as wallpaper, porous heat insulating materials, and porous soundproofing materials.

  The tungsten oxide fine particles 23 are disposed in the plurality of holes 24a of the base material 21a. Specifically, among the plurality of holes 24 of the base material 21a, the holes 24a having a size larger than the particle diameter of the tungsten oxide fine particles 23 are arranged. Only one tungsten oxide fine particle 23 may be arranged in one hole 24a, or a plurality of tungsten oxide fine particles 23 may be arranged. A plurality of tungsten oxide fine particles 23 may be arranged in the depth direction with respect to one hole 24a. Further, the tungsten oxide fine particles 23 may be disposed inside all of the plurality of hole portions 24a, or may be disposed only inside some of the hole portions 24a.

  According to this, since the tungsten oxide fine particles 23 are arranged in the plurality of holes 24a of the porous base material 21a, the plurality of tungsten oxide fine particles 23 are dispersed when the whole base material 21a is viewed. It is in a state. These tungsten oxide fine particles 23 thermally protect the base material 21a inside the base material 21a. And since melting | fusing point of the tungsten oxide fine particles 23 is 1000 degreeC or more, it is possible to raise the heat-resistant temperature of 2 A of refractory materials and the building material 10 more.

[Others]
As mentioned above, although the refractory materials 2 and 2A concerning this invention were demonstrated based on the said Embodiment 1, 2, this invention is not limited to said embodiment.

  For example, in the first and second embodiments, the tungsten oxide fine particles are exemplified as the metal oxide fine particles impregnated in the base materials 21 and 21a. However, even if other metal oxide fine particles are impregnated into the base materials 21 and 21a, the heat-resistant temperature of the refractory materials 2 and 2A can be increased. For example, metal oxide fine particles having a melting point higher than the melting point or ignition point of the base materials 21 and 21a may be employed. It is known that the ignition point has no constant specific to the substance. For this reason, various conditions such as the materials, shapes, and usage conditions of the base materials 21 and 21a are determined, the ignition point is measured by experiments, simulations, and the like, and the measurement results are used when selecting the metal oxide fine particles.

Examples of the metal oxide forming other metal oxide fine particles include basic oxides, amphoteric oxides, and oxide minerals. Examples of the basic oxide include sodium oxide (Na ₂ O), potassium oxide (K ₂ O), magnesium oxide (MgO), barium oxide (BaO), silver oxide (Ag ₂ O), and chromium oxide (CrO). , Manganese oxide (MnO), iron oxide (FeO), and bismuth oxide (Bi ₂ O ₃ ). Examples of amphoteric oxides include aluminum oxide (Al ₂ O ₃ ), zinc oxide (ZnO), tin oxide (SnO), and lead oxide (PbO). Examples of the oxide mineral include quartz (SiO ₂ ), magnetite (Fe ₃ O ₄ ), corundum (Al ₂ O ₃ , ruby and sapphire depending on impurities), titanium oxide (rutile: TiO ₂ ) zirconia (ZrO ₂ ), and spinel. (MgAl ₂ O ₄ ), molybdenum oxide (MoO ₃ ), and the like.

  Further, by adjusting the degree of the impregnation treatment, the metal oxide fine particles may be penetrated to the deep part of the base materials 21 and 21a, or the metal oxide fine particles may be permeated only into the surface layer of the base materials 21 and 21a. Depending on the application of the refractory materials 2 and 2A or the performance required of the refractory materials 2 and 2A, it is possible to adjust the arrangement location of the metal oxide fine particles.

  In addition, the embodiment can be realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, or a form obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. Forms are also included in the present invention.

1 clothes 2, 2A refractory material 2A refractory material 10 building material 21, 21a base material 23 tungsten oxide fine particles (metal oxide fine particles)
24, 24a hole

Claims (6)

A porous substrate,
A refractory material comprising metal oxide fine particles disposed in a plurality of holes of the substrate. The refractory material according to claim 1, wherein the metal oxide fine particles are tungsten oxide fine particles. The refractory material according to claim 1, wherein the metal oxide fine particles have a particle size of 0.1 μm or more and 15 μm or less.   The clothing formed from the refractory material as described in any one of Claims 1-3.   The building material formed from the refractory material as described in any one of Claims 1-3. A method for producing a refractory material, wherein a porous base material is impregnated with a suspension containing metal oxide fine particles to dispose the metal oxide fine particles in a plurality of pores of the base material.