JP4963146B2 - Nonflammable soft face material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heat-resistant panel, a heat-insulating panel, a heat-resistant and heat-insulating face material widely used for a surface material laminated on a flame-retardant heat-insulating panel or a general building material, and is particularly lightweight by blending an organic component. The present invention relates to a nonflammable soft face material provided with flexibility and mechanical strength.
[0002]
[Prior art]
Conventionally, heat-resistant panels, heat-insulating panels, and flame-retardant heat-insulating panels used for building materials such as ceiling boards are generally heat-resistant, flame-retardant, etc. on one or both sides of foamed resin such as phenol resin foam. It was comprised by sticking together and laminating | stacking the face material which has this.
[0003]
Examples of the face material used for such a purpose include Japanese Patent Laid-Open No. 55-63255 (first known technology), Japanese Patent Laid-Open No. 55-77562 (second known technology), Japanese Patent Laid-Open No. 8- As exemplified in No. 1854 (third publicly known technology), a metal plate such as an aluminum plate or a stainless steel plate, a non-combustible asbestos plate, a glass fiber cloth, a synthetic resin plate such as melamine or polyester, a pertex board, or a sepiolite. Incombustible sheets, etc., mainly made of brucite, etc., were widely used.
[0004]
[Problems to be solved by the invention]
However, among the face plates made of a metal plate, a non-combustible asbestos plate, a synthetic resin plate, a pertex board, or a non-combustible sheet generally used in the first to third known technologies described above, heat resistance and Face materials with excellent flame resistance have poor mechanical strength and resistance to bending (flexibility) as face materials, so there is a problem of bending or tearing when forcibly bent during use. .
[0005]
In addition, since the above-mentioned conventional face material is poor in foldability, it is not possible to smoothly cope with the case where it is laminated continuously with a phenol resin foam or the like, or even when pasted, There was also a problem that manufacturing became difficult.
[0006]
Incombustible soft surface material according to the present invention is a conventional problem completely new technology developed in view of the above, silicon Sanshitsu magnesium, glass fiber, pulp, antimony oxide sol, a slurry obtained by blending only binder The present invention provides a completely new technique in which a paper is made up and a pulp (organic component) is blended to impart flexibility and mechanical strength to the face material.
[0007]
[Means for Solving the Problems]
Incombustible soft surface material according to the present invention is an invention which fundamentally improve the conventional problems described above, the first aspect, silicic Sanshitsu magnesium 30 to 80 wt%, glass fiber 5-25 wt%, It is a nonflammable soft face material characterized in that it is made by paper making a slurry consisting of pulp 10-30 wt% , antimony oxide sol 1-5 wt% and binder 2-10 wt% .
[0008]
Since paper made from slurry containing only siliceous magnesium, glass fiber , pulp , antimony oxide sol and binder , organic content by pulp is blended when compared with conventional inorganic-rich face materials. In spite of this, it is possible to constitute a face material excellent in heat resistance and combustion resistance.
[0009]
Moreover, since the nonflammable soft face material of the present invention is configured by blending an organic component in the face material as described above, it can impart mechanical strength and flexibility to the face material. Integrated molding or post-bonding molding by continuous lamination with a foamed resin such as phenol resin foam can be facilitated, and mass production can be performed at low cost.
[0010]
According to a second aspect of the present invention, the nonflammable soft face material of the first invention is characterized in that, as a nonflammability imparting aid, paper is made from a slurry in which an antimony oxide sol is fixed to the pulp.
[0011]
Incombustible soft surface material according to claim 2, sol particles of antimony oxide sol because covered by fixing the organic such as pulp, it is possible to lower the combustion temperature of the surface material. Increasing the organic blend increases the flexibility, but increases the combustion temperature, and there is a problem that the exothermic test conditions specified in the Building Standards Law Enforcement Ordinance No. 1 No. 5 described later cannot be passed. However, the said problem can be solved by mix | blending antimony oxide sol in a predetermined ratio like this invention.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An example of the configuration of the nonflammable soft face material according to the present invention will be specifically described as follows. That is, in the present invention, in producing the face material, a slurry was prepared by blending magnesium silicate, glass fiber , pulp , antimony oxide sol and binder in the following proportions.
[0013]
[Example of blending range]
Component range wt%
Magnesium silicate 30-80
Glass fiber 5-25
Pulp 10-30
Antimony oxide sol 1-5
Binder 2-10
And
[0014]
A slurry is prepared by blending only the components as described above at a certain ratio, and the slurry is made with a wet paper machine so that the basis weight is 50 to 300 g / m ² to form a nonflammable soft face material. Manufactured in a continuous state. As the siliceous magnesium, sepiolite (a magnesium hydrous inosilicate mineral, Mg ₈ H ₂ (Si ₄ O ₁₁ ) ₃ .3H ₂ O) was generally used.
[0015]
〔Example〕
Sepiolite 61wt%
Glass fiber 14wt%
Pulp 18wt%
Antimony pentoxide sol 2wt%
Binder 5wt%
Using a wet paper machine, the slurry containing the above-described constituents was paper-made to have a basis weight of 160 g / m ² to produce a nonflammable soft face material according to the present invention.
[0016]
A face material produced by papermaking a slurry in which the components as in the above-mentioned examples are blended at a certain ratio is tested in accordance with the exothermic test of Article 1, Item 5 of the Building Standards Act. As a result of testing a specimen with a face material thickness of 0.3 mm under the conditions of a radiation intensity of 50 kW / m ² , a test distance of 25 mm, and a test time of 20 minutes, the following test results can be obtained. It was.
[0017]
That is, the maximum heat generation rate is a 15.5kW / m ^2, without exceeding 200 kW / m ² continuously for 10 seconds or more criteria, the gross calorific value is a 1.6 mJ / m ^2, evaluation It is less than the standard 8MJ / m ² , and it can be confirmed that the entire face material has no cracks and holes that penetrate to the back side, which is harmful for disaster prevention. did.
[0018]
The inventors of the present invention have been able to obtain the following conclusions as a result of trying various examples or comparative examples in which the increase or decrease of each constituent component has been tried with the above examples as the center.
[0019]
That is, when general sepiolite was used as the siliceous magnesium and the blending ratio of this sepiolite was set to 30 wt% or less, it became clear that the manufactured face material lacked heat resistance. In addition, it has now been found that when the ratio of sepiolite is 80 wt% or more, the dispersibility of the produced face material deteriorates and defective products are generated. And when the compounding ratio of sepiolite was made into the range of 60-70 wt%, it turned out that a more preferable result is obtained.
[0020]
And when the compounding ratio of the glass fiber was 5 wt% or less, it became clear that the manufactured face material lacked heat resistance. Moreover, when the glass fiber was 25 wt% or more, it became clear that the flexibility of the manufactured face material deteriorated. And when the compounding ratio of the glass fiber was made into the range of 10-20 wt%, it turned out that a more preferable result is obtained.
[0021]
Furthermore, when the blending ratio of the pulp was 10 wt% or less, it was revealed that the manufactured face material lacks flexibility. Moreover, when the compounding ratio of the pulp was 30 wt% or more, it became clear that the heat resistance of the manufactured face material deteriorated. And it turned out that the case where the compounding ratio of a pulp is made into the range of 15-25 wt% is more preferable.
[0022]
When manufacturing the nonflammable soft face material according to the present invention , a binder is required . This binder is not particularly limited as long as it is in the range of 2 to 10 wt%. When a binder is mixed in this way, sepiolite, glass fiber, pulp, and antimony oxide particles can be bonded to each other, making the face material flexible, reducing the influence of humidity , and further improving the formability of the face material. There is an effect that can be improved.
[0023]
Aforementioned binder, when blended 11 wt% or more, since the adverse effects such as to fuming problems and nonflammable occurs, preferably 10 wt% or less of the formulation. On the other hand, when the binder is 1% or less, there is a problem that the binder effect is small, powder falling off increases, and the tensile strength decreases. As the binder, vinylidene chloride or vinyl chloride resin emulsions can be used.
[0024]
Further, when antimony oxide sol is blended as described above, the sol particles of the antimony oxide sol are fixed and covered with organic matter such as pulp, so that the combustion temperature of the face material can be lowered. Increasing the organic blend increases the flexibility, but increases the combustion temperature, and there is a problem that the exothermic test conditions specified in the Building Standards Law Enforcement Ordinance No. 1 No. 5 described later cannot be passed. However, the said problem can be solved by mix | blending antimony oxide sol in a predetermined ratio like this invention.
[0025]
The blending ratio of the antimony oxide sol is preferably 1 to 5 wt% from the range of the amount of organic matter. If the organic mass is small, incombustibility can be obtained without adding antimony oxide sol, but there is a problem of lack of flexibility. If the organic mass (30 wt% or more) is too large, the basic organic mass is large. Therefore, there is a problem that non-flammability cannot be obtained even when 5% or more of antimony oxide sol is added.
[0026]
In the case where a slurry made by blending the constituent components as described above in a predetermined range is made using a wet paper machine so that the basis weight is 50 to 300 g / m ² , the pulp (organic content) is Although it was blended, it was found that it had excellent heat resistance and flame resistance, but had mechanical strength and flexibility as a face material. In particular, when the range of the basis weight is 100 to 200 g / m ² , it is lightweight and has mechanical strength and flexibility as a face material. It has been found that continuous lamination or post-sticking is easy when it is integrally bonded to the foam sheet.
[0027]
【Effect of the invention】
Since the nonflammable soft face material according to the present invention is made by making a paper slurry containing only siliceous magnesium, glass fiber , pulp , antimony oxide sol and binder , it is compared with a face material with a high inorganic content. In this case, it has an effect that a face material excellent in heat resistance and combustion resistance can be constituted despite the fact that the organic component of pulp is blended.
[0028]
Furthermore, since the nonflammable soft face material of the present invention is configured by blending an organic component in the face material as described above, it can impart mechanical strength and flexibility to the face material, thereby It also has great effects such as easy integral molding or post-bonding molding by continuous lamination with foamed resin such as phenol resin foam, and mass production at low cost.
[0029]
Further, the face material according to the present invention described above is composed of only 30 to 80 wt% of the siliceous magnesium, 5 to 25 wt% of the glass fiber, 10 to 30 wt% of the pulp, 1 to 5 wt% of the antimony oxide sol, and 2 to 10 wt% of the binder. When blended and configured, the face material itself can be provided with heat resistance, combustion resistance, mechanical strength or flexibility. Furthermore, since the face material thickness is made so that the basis weight is 50 to 300 g / m ² , the whole can be made thin and light, and the subsequent workability as a face material can be improved. have.
[0030]
When 1 to 5 wt% of the antimony oxide sol is blended , the sol particles of the antimony oxide sol are fixed and covered with organic matter such as pulp, so that the combustion temperature of the face material can be lowered. In addition, increasing the organic compounding improves the flexibility, but increases the combustion temperature, and there is a problem that it does not pass the exothermic test conditions stipulated in Article 1, Item 5 of the Building Standards Law Enforcement Ordinance described later. However, by blending antimony oxide sol at a predetermined ratio as described above, the above problem can be solved.

Claims (2)

Kei Sanshitsu magnesium 30 to 80 wt%, glass fiber 5-25 wt%, pulp 10 to 30 wt%, and characterized in that a slurry composed of only antimony oxide sol 1-5 wt% and the binder 2 to 10 wt% were constructed in papermaking Nonflammable soft face material.   The nonflammable soft face material according to claim 1, wherein the nonflammable soft face material comprises a slurry in which antimony oxide sol is fixed to pulp as a nonflammability imparting aid.