JPS60429Y2 - Architectural base material - Google Patents

Description

[Detailed description of the invention] The present invention relates to a base material for construction, and its purpose is to have excellent adhesive strength to mortar, as well as excellent heat insulation, soundproofing, flame retardancy, and bending strength. Furthermore, the present invention provides a lightweight and inexpensive construction base material that is easy to nail and cut.

Conventionally, when constructing a building, a board called a so-called field board was placed between the pillars as a base material, waterproof paper and lath were attached to the surface of the field board, and mortar was applied to the surface of the lath. However, this conventional construction method has the drawback that it takes a long time to install as it requires the work of attaching waterproof paper and lath in addition to the work of laying the roofing boards, and the mortar has a weak adhesive strength and cracks over time. Otherwise, it had the disadvantage of peeling off.

Therefore, in recent years, various building materials such as synthetic leather Raspode have been developed, but all of these have heat insulation, soundproofing,
It has problems in terms of flame retardancy, bending strength, and cutability, and it is also expensive in terms of cost, and its adhesive strength to mortar is not sufficient, so it cannot be called the best base material. be.

The present invention is intended to improve the above-mentioned drawbacks and inconveniences as a building base material, and to provide a building base material that is particularly suitable as a base material and can also be used satisfactorily as an interior material.

More specifically, 70 to 9 Qwt% of inorganic incinerated ash is applied to at least the mortar application side surface of a base material consisting of 50 to 8 wt% of organic powder, 5 to 3 Qwt% of inorganic incinerated ash such as municipal waste, and 15 to 20 wt% of synthetic resin. % and a synthetic resin of 10 to 3 Qwt%.

The present invention will be explained below with reference to the embodiments shown in the drawings.
is a base material, which is formed by molding a mixture of organic powder 2 and inorganic incineration ash 3 under pressure (approximately 20 kg/c7I yen) using a synthetic resin and solidifying it.

As the organic powder 2, plant fibers such as sawdust, rice husks, and bark are used, and inorganic incineration ash 3 is used.
The method uses incineration ash produced at municipal waste incineration plants, and its components include Ca, Fe, Si, and Mg.
It is formed from oxides such as

Further, as the synthetic resin, vinyl acetate resin, urea resin, polyester resin, epoxy resin, etc. are used alone or in combination, and these resins are used as they are or diluted with an extender such as a solvent.

Therefore, the base material 1 is the organic powder 2.50 to 8 oz.
wt%, incinerated ash 3.5~3Qwt% and synthetic resin 15~
It is formed by mixing and solidifying 20 wt% of wood, and depending on this blending ratio, it has excellent properties similar to wood in terms of cutting workability, etc., and is superior to wood in terms of heat insulation, soundproofing, and especially flame retardancy. As a result, it has the following characteristics.

The blending ratio of the powder 2 and incinerated ash 3 may be adjusted as appropriate depending on the location and purpose of use.

Then, on at least the mortar application side surface of the base material 1, a surface layer 5 made of incinerated ash 4 of the same quality as the inorganic incinerated ash 3 and a synthetic resin is applied at a rate of 0.5 to 3 rrr! It is formed by coating to a thickness of about n.

The surface layer 5 is made into a liquid by mixing 70 to 9 Qwt% of the incinerated ash 4 and 10 to 3 Qwt% of the synthetic resin.This mixed liquid is sprayed onto the base material 1, or coated with a brush, rolled or other suitable method. The surface layer 5 is applied in a thin layer by means of a method and then solidified to be formed integrally with the base material 1. By setting the surface layer 5 to the above-mentioned mixing ratio, the adhesive strength to the mortar can be increased without impairing the characteristics of the base material 1 described above. It can be further improved.

The synthetic resin forming the surface layer 5 is acrylic.
Acrylic resins such as styrene polymer resins are optimal in terms of adhesive strength to mortar, but it is also possible to use vinyl acetate resins, epoxy resins, urea resins, etc. alone or in combination. .

In particular, the urea-based resin is inferior to other resins in terms of adhesion to mortar, but is excellent in adhesion to the base material 1.

In addition, when forming the surface layer 5, white cement or plaster may be added and mixed, whereas when it is formed from only incinerated ash and synthetic resin, the surface layer 5 becomes darkish in color. The surface layer 5 becomes gray, which increases the aesthetic value of the product and at the same time further strengthens the adhesive strength with the mortar.

In addition, a small amount of methyl cellulose or the like may be added to increase the stickiness of the mixed liquid consisting of the synthetic resin and incinerated ash. In this way, the workability of applying the mixed liquid to the substrate 1 can be improved. Become.

Moreover, in the case shown in FIG. 2, the organic powder 2 is
It is composed of wood chips 2 of Vn, and the blending ratio of inorganic incinerated ash, synthetic resin, etc. is the same as in the previous example, and the finished surface of the S' base material 1 is a rough surface with unevenness. Therefore, if the surface layer 5 is formed on this negative side, the adhesion will be good and the finished surface will be beautiful.

Next, specific examples of the base material according to the present invention will be shown.

500 g of sawdust (lauan material 20 mesh), 2009 incineration ash, and 160 y of urea/melamine cocondensation resin
are mixed and solidified to form a flat base material 1.

Next, 120g of acrylic/styrene polymer resin and 1 incineration ash.
00 g and 40 y of water are mixed to prepare a mixed solution, and this mixed solution is sprayed onto the surface of the base material 1 to solidify it to give 0.5 to 3 rIr! n surface layers 5 are integrally formed.

As explained above, the construction base material of the present invention is made by mixing and solidifying organic powder, inorganic incinerated ash, and synthetic resin at the predetermined mixing ratio described above to form a base material, and at least applying mortar to this base material. Since the side surface is integrally coated with a surface layer made of incinerated ash and synthetic resin in a predetermined mixing ratio, the surface layer increases the adhesive strength to the mortar and prevents the mortar from cracking even after long-term use. In other words, it no longer peels off.

In addition, the base material, that is, the base material and the surface layer, are both mainly composed of industrial waste resulting from processing, so they can be obtained in large quantities at low cost, and it is not only possible to provide the base material at a low cost. It is also useful as a pollution control measure.

Furthermore, since the base material contains organic powder, the base material is lightweight, making it convenient for transportation and handling, and the workability of the base material, such as nailing and sawing, is similar to that of ordinary wood. In addition, it can be used as a base material with excellent soundproofing properties, moisture absorption properties, heat insulation properties, and heat retention properties.

Furthermore, since inorganic incineration ash is mixed into both the base material and the surface layer, the base material can be made to have excellent flame retardancy and strength.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a sectional view of a base material, and FIG. 2 is a sectional view of another embodiment of the base material. 2 is organic powder, 3 and 4 are inorganic incineration ash, and 5 is the surface layer.

Claims (1)

[Scope of utility model registration request] 50 to 8 wt% of organic powder and granules, 5 to 3 Qwt% of inorganic incineration ash such as municipal waste, and 15 to 20 wt% of synthetic resin.
70 to 9 Qwt% of inorganic incinerated ash and 10 to 3 Qwt% of synthetic resin are added to at least the surface of the mortar application side of the base material to be removed.
An architectural base material characterized by forming a surface layer that is hollow.