KR101203393B1 - Sheet-like non-combustible molded body - Google Patents

Abstract

Providing a sheet-shaped non-flammable molded object which has a high nonflammability and is excellent in bending strength and peeling strength.

This subject is water-containing inorganic compound or water-soluble inorganic compound and carbonate 60-95 mass% (solid content), cellulose fiber 2-20 mass% (solid content), inorganic fiber 1-20 mass% (solid content), and phenol resin 1-20 It is solved by the sheet-shaped non-flammable molded body which consists of a mass form (solid content) and is a sheet-like thermo-pressure molding body which contains this phenol resin which is 30/70-75/25 of solid content mass ratio 30/70-75/25 of resol resin / novolak resin, too. do.

Sheet, nonflammable, molded body, water-soluble inorganic compound, carbonate, phenolic resin

Description

Sheet-shaped non-flammable molded object {SHEET-LIKE NON-COMBUSTIBLE MOLDED BODY}

The present invention relates to a sheet-shaped non-flammable molded article, and more particularly, to a sheet-shaped non-flammable molded article having high non-flammability and excellent in mechanical strength.

DESCRIPTION OF RELATED ART Conventionally, the base material which contained a large amount of aluminum hydroxide powder is used as a nonflammable building material which gives nonflammability to various building materials for fire prevention countermeasure of a building. The base material which contained this aluminum hydroxide powder in a large amount is inflammable by the dehydration endothermic reaction of aluminum hydroxide at 200-300 degreeC.

By the way, the base material which contained a large amount of hydrous inorganic compounds like this aluminum hydroxide had the difficulty of being extremely weak in general. In order to solve this difficulty, several proposals have been made to date.

For example, Patent Literature 1 discloses a technique of increasing the amount of a synthetic polymer that can be contained by an effect of improving the nonflammability by using a hydrous inorganic compound and a carbonate at a specific compounding ratio, thereby improving the strength of such a nonflammable substrate. Is disclosed. However, the demand for improved performance in these fields is even stronger, and a decrease in strength is inevitable when the blending amount of the synthetic polymer is reduced in order to secure higher incombustibility.

Moreover, in patent document 2, in the nonflammable base material which mix | blends a hydrous inorganic compound or a hydrous inorganic compound, and carbonate high, and contains cellulose fiber, an inorganic fiber, and a thermosetting resin, the predetermined amount of this thermosetting resin is made into the The technique which can improve intensity | strength, maintaining non-combustibility by containing in a surface layer part is disclosed. However, in the technique by patent document 2, a thermosetting resin is not contained uniformly in a nonflammable base material. That is, the surface layer portion contains a relatively large amount of thermosetting resin, but since only a very small amount of the thermosetting resin is contained in the center portion, the bending strength at which the strength expression effect of the thermosetting resin contained in the surface layer portion effectively works can be made relatively strong. The strength-expressing effect by some thermosetting resin in the center of the substrate becomes extremely insufficient, and the peel strength depending on the strength of the weakest portion in the substrate becomes extremely weak.

[Patent Document 1] Japanese Patent Application Laid-Open No. 5-112659

[Patent Document 2] Japanese Patent Application Laid-Open No. 8-198980

This invention is made | formed in view of said point, and provides the sheet-shaped non-combustible molded object which has a high nonflammability and was excellent in bending strength and peeling strength.

The sheet-shaped non-flammable molded article which concerns on this invention is a water-containing inorganic compound or a water-containing inorganic compound and carbonate 60-95 mass% (solid content), cellulose fiber 2-20 mass% (solid content), inorganic fiber 1-20 mass% (solid content) And a sheet-shaped thermo-pressure molded body comprising 1 to 20 mass% (solid content) of phenolic resin and containing a phenolic resin having a solid content mass ratio of 30/70 to 75/25 of a resol resin / novolak resin at a deep portion thereof. It is a shape nonflammable molded object.

Best Mode for Carrying Out the Invention [

As the above-mentioned hydrous inorganic compound, aluminum hydroxide, magnesium hydroxide, calcium hydroxide, gypsum dihydrate and calcium aluminate hydrate (xCaO? Al ₂ O ₃ ? YH ₂ O; x = 1 to 4, y = 5 to 19) and the like Can be mentioned. These compounds all have crystal water in their molecules and have chemically similar structures. In addition, although the hydrous inorganic compound differs slightly in decomposition temperature and endothermic amount according to the kind, it is completely common in the point which decomposes at high temperature heating and exhibits a flame retardant effect by the endothermic action. Therefore, although any of the above-mentioned hydrous inorganic compounds may be used basically, aluminum hydroxide is most suitable in consideration of economical efficiency such as availability.

Examples of the carbonate used in the present invention include calcium carbonate, magnesium carbonate, barium carbonate, strontium carbonate, beryllium carbonate, and zinc carbonate. Although these carbonates differ slightly in decomposition temperature and endothermic amount according to the kind, they are completely common in that they decompose at high temperature heating and exhibit a flame retardant effect by the endothermic action. Therefore, although any of the above-mentioned carbonates may be used basically, calcium carbonate is most suitable in consideration of economical efficiency such as an acquisition price. In addition, another important effect of the carbonate compounding is the effect of reducing the amount of smoke as the inventors pointed out in Japanese Patent Application Laid-Open No. 5-112659.

The water-containing inorganic compound in the sheet-shaped non-flammable molded article according to the present invention is 60 to 95 mass% in solid content, or the content range of the total content of the water-containing inorganic compound and carbonate is 60 to 95 mass% in solid content. Preferably it is 70-92 mass%, More preferably, it is 75-88 mass%. When the content rate is less than 60 mass%, sufficient incombustibility is not obtained. On the contrary, when it exceeds 95 mass%, sufficient papermaking property or mechanical strength is not obtained by excess of a hydrous inorganic compound or the total amount of a hydrous inorganic compound and carbonate, and it is unsuitable. Sufficient incombustibility, papermaking property, or mechanical properties of the water-containing inorganic compound in the sheet-shaped non-flammable molded body in the range of 70 to 92% by mass in solid content, or the content of the total amount of the water-containing inorganic compound and carbonate in the range of 70 to 92% by mass. It becomes easy to ensure strength, and by setting it as the range of 75-88 mass%, it becomes easy to ensure sufficient incombustibility, papermaking property, or mechanical strength further.

Moreover, it is preferable to make the content mass ratio of a water-containing inorganic compound / carbonate into a water content inorganic compound excess rather than 50/50 in solid content. The content mass ratio of the hydrous inorganic compound / carbonate is more solid than the 50/50 in terms of the content of the hydrous inorganic compound, so that it is easy to ensure more incombustibility.

As said cellulose fiber, it uses together the 1 type (s) or 2 or more types chosen from wood pulp, cotton pulp, hemp pulp, various pulp derived from wood pulp, such as a coniferous or hardwood chemical pulp, a mechanical pulp, a semichemical pulp, etc. Can be used. Wood pulp is the easiest to use cellulose fiber raw material because of its stable supply, quality and relatively low cost. Although cotton pulp and hemp pulp are inexpensive due to unstable supply, the sheet-like molded article containing a large amount of an endothermic-decomposable inorganic compound as in the present invention may be used by using this cotton pulp or hemp pulp as needed. The fall of the mechanical strength of a shape molded object can be stopped to the minimum.

The content range of the cellulose fiber in the sheet-shaped non-flammable molded article according to the present invention is 2 to 20% by mass, preferably 3 to 18% by mass, and more preferably 4 to 15% by mass in solid content. If the total content is less than 2% by mass, sufficient papermaking property cannot be obtained due to the under cellulose fiber, and the mechanical strength is insufficient. On the contrary, when it exceeds 20 mass%, sufficient incombustibility cannot be obtained by excess of organic substance. Moreover, when the content rate of the cellulose fiber in a sheet-shaped nonflammable molded body is 3 to 18 mass% in solid content, sufficient papermaking property, mechanical strength, and nonflammability will be easy to be ensured, and it will be 4 to 15 mass% further, It becomes easy to ensure sufficient papermaking property, mechanical strength and nonflammability.

As said inorganic fiber, at least 1 type is chosen and used out of rock wool fiber, glass fiber, ceramic fiber, carbon fiber, etc.

The content rate range of the inorganic fiber in the sheet-shaped nonflammable molded object of this invention is 1-20 mass% in solid content, Preferably it is 1-17 mass%, More preferably, it is 2-15 mass%. If the content is less than 1% by mass, sufficient incombustibility is not obtained. If the content is more than 20% by mass, sufficient papermaking property is not obtained. In addition, by setting the content of the inorganic fibers in the sheet-shaped non-flammable molded body in the range of 1 to 17% by mass in solid content, it is easy to ensure sufficient nonflammability and papermaking property, and furthermore, sufficient incombustibility by setting it in the range of 2 to 15% by mass. It is easy to secure papermaking property.

As for the phenol resin used by this invention, resol resin / novolak resin is 30 / 70-75 / 25 by solid content mass ratio, Preferably it is 35 / 65-70 / 30, More preferably, it is 40 / 60-65 / 35. . In the case where the resol resin is used more than 75/25, harmful deformation such as cracking is likely to occur in the surface test of JIS A 1321: 1994, and sufficient incombustibility cannot be ensured. On the contrary, when the resol resin is less than 30/70, the amount of smoke tends to be excessive in the surface test of JIS A 1321: 1994, and sufficient incombustibility cannot be ensured, and the mechanical strength is also insufficient. In addition, when the solid content mass ratio of the resol resin / novolak resin is in the range of 35/65 to 70/30, harmful deformation such as cracking is unlikely to occur in the surface test of JIS A 1321: 1994, and the amount of smoke is excessive. It becomes difficult, and it becomes easy to ensure sufficient non-combustibility and also to ensure sufficient mechanical strength. In addition, when the solid content mass ratio of the resol resin / novolak resin is in the range of 40/60 to 65/35, furthermore, harmful deformation such as cracking is unlikely to occur in the surface test of JIS A 1321: 1994, and the amount of smoke is excessive. It is hard to make it, and it becomes easy to ensure sufficient non-combustibility, and also to ensure sufficient mechanical strength.

The content range of the phenol resin in the sheet-shaped nonflammable molded object of this invention is 2-20 mass% in solid content, Preferably it is 3-17 mass%, More preferably, it is 4-15 mass%. If the content is less than 2% by mass, sufficient mechanical strength cannot be obtained. If the content is more than 20% by mass, sufficient incombustibility cannot be obtained due to excessive organic matter. In addition, by setting the content of the phenol resin in the sheet-shaped nonflammable molded body in the range of 3 to 17% by mass in solid content, it is easy to ensure sufficient mechanical strength and nonflammability, and further to have sufficient mechanical strength in the range of 4 to 15% by mass. And it becomes easy to ensure nonflammability.

The sheet-shaped non-flammable molded article according to the present invention is a phenol in which the hydrous inorganic compound or the hydrous inorganic compound and the carbonate, cellulose fiber, inorganic fiber and the resol resin / novolak resin are 30/70 to 75/25 in solid mass ratio under the above-mentioned formulation. What is necessary is just a structure called resin, and the manufacturing method can apply arbitrary methods, such as a wet foaming method and a dry molding method, and is not limited to a specific manufacturing method, but a wet foaming method is the most preferable. In the following, the case of applying the wet evaporation method will be described in more detail with reference to the manufacturing method as an example.

The sheet-shaped non-flammable molded article according to the present invention may contain various yield improvers for improving the yield of the hydrous inorganic compound or carbonate, or synthetic dyes, pigments, and the like for coloring, as necessary. In addition, depending on the use, it is needless to say that a dry or wet strength enhancer, a sizing agent, a water repellent, a water repellent, and the like are included in order to improve the mechanical strength or post-processability.

As a method of containing a phenol resin in the sheet-shaped non-flammable molded object of this invention, liquid substance, fibrous substance, or granular substance, etc. of a phenol resin may be added to a raw material, or may be apply | coated or impregnated after paper layer formation. In particular, in order to achieve uniformity in quality in the thickness direction, a method of adding a liquid substance, a fibrous substance or a granular substance, etc. of the phenol resin to the raw material slurry is most preferred.

As a method of containing the water-containing inorganic compound or carbonate, a method such as coating or impregnating a coating material containing the water-containing inorganic compound or carbonate to the substrate can be considered, but it is possible to ensure a predetermined content or to uniform the quality in the thickness direction. In order to achieve this, the method of adding a hydrous inorganic compound or carbonate in powder form or slurry form is most preferable in the raw material slurry.

In this case, the addition method, addition order, etc. of a hydrous inorganic compound, a carbonate, a cellulose fiber, an inorganic fiber, and a phenol resin are arbitrary, and you may perform beating treatment etc. as needed.

In order to wet-wet using the raw material slurry obtained in this way, it is good according to the general annealing method. That is, what is necessary is just to supply the said raw material slurry to a superfine net | network, such as a long net, a circular net, or a gradient net, and to filter and dehydrate, and to crimp and dry. Moreover, you may overlap 2 or more layers of a sheet layer by various combination nets, a multitrillant net, various laminators, etc. as needed.

In the case of hot pressing, conventionally, conventional hot pressing press molding, preheating-cold press molding, high frequency heating molding and the like may be applied alone or in combination of two or more.

The sheet-shaped nonflammable molded article of the present invention exhibits excellent nonflammability only by containing a hydrous inorganic compound and an inorganic fiber, or by containing a hydrous inorganic compound, a carbonate and an inorganic fiber, but does not prevent the use of conventional conventional flame retardants. . As a flame retardant which can be used together, well-known flame retardants, such as sulfamate, an inorganic phosphate, a halogen-containing compound, and an antimony type compound, such as an organophosphorus compound, phosphorus-containing nitrogen compound, and guanidine sulfamate, are mentioned. Moreover, as a usage method of a flame retardant, methods, such as adding to a raw material slurry, apply | coating or impregnating during an initial process, after an initial stage, or after thermoforming, are mentioned. However, in general, the flame retardant also has a difficult point such as easy to generate harmful gases during high temperature heating, it is not preferable to use a flame retardant. In the case of using a flame retardant, it is natural that the content of the flame retardant should be minimized in consideration of the content of the hydrous inorganic compound and rock wool fibers or the content of the hydrous inorganic compound and carbonates and rock wool fibers.

In addition, depending on the application, the obtained sheet-shaped non-flammable molded body is subjected to surface treatment such as spraying, coating or printing of various paints, or affixing a face material such as toilet paper, artificial leather, synthetic resin film, protrusion plate, metal plate or metal foil. It is needless to say that it is possible to further increase the added value of the sheet-shaped non-flammable molded body.

An important point of the present invention is that by using a phenol resin having a specific resin composition, it contains a large amount of a hydrous inorganic compound or a hydrous inorganic compound and a carbonate, and in addition, contains a predetermined amount of cellulose fiber and an inorganic fiber, and further, a predetermined amount The sheet-like thermoformed article containing the above phenol resin maintains excellent performance in both bending strength and peeling strength, and does not cause harmful deformation such as cracking in the surface test of JIS A 1321: 1994. In addition, the amount of smoke is small, and it has a high nonflammability which can pass the 1st grade of this surface test.

Since phenolic resin can express mechanical strength by comparatively small amount, and phenolic resin itself is comparatively excellent in heat resistance, it will be said that it is suitable for the material which requires high incombustibility. However, even a phenol resin is an organic substance, and even a small amount of compounding, for example, cannot deteriorate to some extent incombustibility. Moreover, in order to acquire the outstanding mechanical strength, it is necessary to mix | blend a certain amount of phenol resins.

Therefore, it was extremely difficult to maintain both excellent mechanical strength and high incombustibility, in particular, excellent performance in both bending strength and peel strength, and to ensure high incombustibility.

Thus, the inventors of the present invention provide a sheet-shaped molded article containing a large amount of a hydrous inorganic compound or a hydrous inorganic compound, a carbonate, and a relatively small amount of a phenol resin, in order to attain both excellent mechanical strength and high incombustibility, although inherently in a relationship of betrayal. After many experiments, it was found that this object can be achieved by using a phenol resin having a specific resin composition. In other words, the phenol resin composed of 30/70 to 75/25 in terms of solid mass ratio of resol resin / novolak resin maintains excellent performance in both mechanical strength and high incombustibility, especially in both bending strength and peel strength. However, it was found to be suitable for the purpose of ensuring a high degree of incombustibility.

Next, it demonstrates based on the experiment result in the Example mentioned later.

The sheet-like shaped articles according to Examples 1, 2, 3, Comparative Example 1 and Comparative Example 2 described later have almost the same composition. And solid content mass ratio of resol resin / novolak resin of the used phenol resin is 65/35 in Example 1, 55/45 in Example 2, 45/55 in Example 3, 20/80, and Comparative Example 1 is compared. Example 2 is 80/20. The bending strength is excellent in Examples 1, 2 and 3 at 14.3 to 16.2 MPa, while in Comparative Example 2 is 16.4 MPa, which is equivalent to Examples 1, 2 and 3, but in Comparative Example 1 is 10.1 MPa and Examples 1 and 2 It is about 30 to 40% lower than that of 3. The peel strength (partial heat adhesive strength) was excellent in Examples 1, 2 and 3 at 7950 to 10200 N / m, whereas in Comparative Example 2 was 10500 N / m, which was the same as in Examples 1, 2 and 3, but Comparative Example In 1, it is about 40 to 50% fall at 5000 N / m compared with Example 1, 2, and 3. In the following, inflammability was observed, in Examples 1, 2, and 3, cracks did not occur in the surface test of JIS A 1321: 1994, whereas cracks did not occur in Comparative Example 1, but cracks occurred in Comparative Example 2. . On the other hand, when looking at the fume coefficient of the surface test of JIS A 1321: 1994, in Examples 1, 2, and 3, the smoke amount was 15.4 to 23.4, while in Comparative Example 2, it was 17.8 and equivalent to Examples 1, 2, and 3, In Comparative Example 1, the amount of smoke increased by 42.6 to about 2 to 3 times as compared to Examples 1, 2, and 3.

That is, in sheet-like molded articles containing a large amount of water-containing inorganic compounds or water-containing inorganic compounds, carbonates and relatively small amounts of phenolic resins, the resin composition of the phenolic resin used is 30/70 to 75 in terms of the solid content mass ratio. By specifying it in the range of / 25, it is possible to obtain a sheet-shaped non-combustible molded body having excellent mechanical strength (bending strength and peeling strength) and high incombustibility that can pass the first grade of the surface test of JIS A 1321: 1994. .

(Example)

Next, the present invention will be described in more detail based on the following examples.

The measurement of each item in a present Example was based on the following method.

(1) Thickness and density: According to JIS P 8118: 1998.

(2) Bending strength: According to JIS A 5905: 1994. When there was fiber orientation, the average of both was measured by measuring about the direction of a fiber orientation and the direction orthogonal to this.

(3) Peeling strength: According to the splitting adhesive strength test of JIS K 6853: 1994. When there was fiber orientation, the average of both was determined by measuring the direction of the fiber orientation and the direction perpendicular to this.

(4) Non-flammability 1: In the surface test of JISA 1321: 1994, it evaluated as the presence or absence of a harmful deformation | transformation on fire prevention, such as a crack.

(5) Nonflammability 2: It evaluated by the smoke coefficient of JISA 1321: 1994.

(6) Nonflammability 3: It evaluated by the pass of the grade 1 of the surface test of JISA 1321: 1994.

Example 1

A predetermined amount of a mixed dispersion of cellulose fibers and inorganic fibers obtained by understanding commercially available conifer-based unbleached sulfate pulp and a fiber wool fiber having a fiber length of 3 mm (hereinafter abbreviated as inorganic fiber a) is taken, and the hydroxide is added thereto. Aluminum powder (average particle diameter is 5.7 mu m. The same below), calcium carbonate powder (average particle diameter is 1.5 mu m. The same below), and phenol resin (hereinafter, phenol resin a) in which the resol resin / novolak resin is 65/35 by solid content weight ratio. After the dispersion and mixing are sufficiently carried out with a stirrer, the resultant is subjected to a square test paper machine, pressed, dried, and heated by a heat press (temperature 175 ° C., pressure 2.0 MPa, time 3 minutes). Shaped article A was obtained.

About the sheet-like molded object A, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 2]

In Example 1, it replaces phenol resin a and is similar to Example 1 except having used the phenol resin (hereinafter abbreviated as phenol resin b) which is 55/45 by solid content weight ratio. And sheet-like molded body B were obtained.

About the sheet-like molded object B, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 3]

In Example 1, it replaces phenol resin a and is similar to Example 1 except having used the phenol resin (henceforth abbreviated phenol resin c) 45/55 in solid content weight ratio instead of resol resin / novolak resin. And sheet-like molded body C were obtained.

About the sheet-like molded object C, the content rate of each component is shown in Table 1, and thickness, density, and bending strength. Peeling strength, incombustibility 1, incombustibility 2 and incombustibility 3 were measured, and the results are shown in Table 1.

Example 4

In Example 2, the sheet-like molded object D was obtained like Example 2 except having changed the compounding quantity of each component.

About the sheet-like molded object D, the content rate of each component is shown in Table 1, and the thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 5]

In Example 2, the sheet-like molded object E was obtained like Example 2 except not having mix | blended the calcium carbonate powder.

About the sheet-like molded object E, the content rate of each component is shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 6]

In Example 2, the sheet-like molded object F was obtained like Example 2 except having used the fiber length of 3 mm (it abbreviates as inorganic fiber b hereafter) instead of the inorganic fiber a.

About the sheet-like molded object F, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 7]

In Example 2, the sheet-like molded object G was obtained like Example 2 except having used the magnesium hydroxide powder shape (average particle diameter is 10 micrometers. The same applies below) instead of the aluminum hydroxide powder.

About the sheet-like molded object G, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 8]

In Example 1, the sheet-like molded object H was obtained like Example 1 except having changed the compounding quantity of each component and setting the pressure of the hot press process to 3.0 MPa.

About the sheet-like molded object H, the content rate of each component is shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 9]

In Example 2, the sheet-like molded object I was obtained like Example 2 except having changed the compounding quantity of each component.

About the sheet-like molded object I, the content rate of each component is shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 10]

The commercially available conifer-based unbleached sulfate pulp and inorganic fiber a are understood as pulpers, and aluminum hydroxide powder, calcium carbonate powder and phenol resin a are added to this, and after sufficient dispersion mixing, winding paperboard machine having a long / wind-up roll configuration The sheet layer was laminated with 20 layers, and was formed by annealing, pressing and drying, followed by heat treatment (temperature 175 ° C, pressure 2.0 MPa, time 3 minutes) with a hot press to obtain a sheet-like molded body J.

About the sheet-like molded object J, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

[Example 11]

In Example 10, the sheet-like molded object K was obtained like Example 10 except having changed the compounding quantity of each component using the phenol resin b instead of the phenol resin a.

About the sheet-like molded object K, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

Comparative Example 1

In Example 1, it carried out similarly to Example 1 except having used phenol resin (Hereinafter, abbreviated as phenol resin d) whose sol resin / novolak resin is 20/80 by solid weight ratio instead of phenol resin a, The shaped molded body L was obtained.

About the sheet-like molded object L, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

Comparative Example 2

In Example 1, instead of phenol resin a, resol resin / novolak resin was used similarly to Example 1 except having used the phenol resin (hereafter abbreviated as phenol resin e) 80/20 by solid weight ratio. And sheet-like molded body M were obtained.

About the sheet-like molded object M, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

Comparative Example 3

In Example 10, the sheet-like molded object N was obtained like Example 10 except having used the phenol resin d instead of the phenol resin a.

About the sheet-like molded object N, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

Comparative Example 4

In Example 10, the sheet-like molded object O was obtained like Example 10 except having used the phenol resin e instead of the phenol resin a.

About the sheet-like molded object O, the content rate of each component was shown in Table 1, and thickness, density, bending strength, peeling strength, nonflammability 1, nonflammability 2, and nonflammability 3 were measured, respectively, and the result was shown in Table 1.

The sheet-shaped non-flammable molded article of the present invention is composed of a phenol resin composed of a hydrous inorganic compound or a hydrous inorganic compound, a carbonate, cellulose fiber, an inorganic fiber, and a resol resin / novolak resin in a solid content mass ratio of 30/70 to 75/25. In addition, since it contained a specific amount of each component, it has a high nonflammability and is excellent in mechanical strength. That is, the sheet-shaped non-flammable molded article of the present invention maintains excellent performance in both bending strength and peeling strength, and does not cause harmful deformation such as cracks in the surface test of JIS A 1321: 1994, and further fumes. It has a small amount and has a high degree of incombustibility that can pass the first grade of this surface test.

Claims (8)

Water-soluble inorganic compound or water-soluble inorganic compound and carbonate 60-95 mass% (solid content), cellulose fiber 2-20 mass% (solid content), inorganic fiber 1-20 mass% (solid content), and phenol resin 1-20 mass% (solid content) A sheet-like non-combustible molded article comprising a sheet-shaped thermo-pressure molded article comprising a phenol resin, which has a solid content mass ratio of 30/70 to 75/25 of a resol resin / novolak resin, at a core part. The sheet-shaped non-flammable molded body according to claim 1, wherein the hydrous inorganic compound / carbonate is 100/0 to 50/50 in terms of solid mass ratio. The sheet-shaped non-flammable molded body according to claim 1 or 2, wherein the hydrous inorganic compound comprises at least one selected from aluminum hydroxide, magnesium hydroxide, calcium hydroxide, dihydrate gypsum and calcium aluminate hydrate. The sheet-shaped nonflammable molded body according to claim 1 or 2, wherein the carbonate is calcium carbonate. The sheet-shaped non-flammable molded body according to claim 3, wherein the carbonate is calcium carbonate. The sheet-like nonflammable molded body according to claim 1 or 2, which is made of a laminate of two or more sheet layers. The sheet-like non-flammable molded body according to claim 3, which is made of a laminate of two or more sheet layers. The sheet-like non-flammable molded body according to claim 4, which is composed of a laminate of two or more sheet layers.