JP3060967U - Antifungal building materials - Google Patents

Abstract

(57) [Summary] PROBLEM TO BE SOLVED: To provide a fungicide building material capable of preventing mold and formaldehyde generated on the front and back surfaces and inside of a building plate material. SOLUTION: Under a pressurized state or a vacuum state, a building board is impregnated and penetrated into the inside of the building board using a synthetic resin emulsion-type coating film waterproofing material containing a fungicide, and the front and back surfaces are covered.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an antifungal building material used for a roof base material, an inner wall material, a floor material, and the like of a building.

[0002]

[Prior art]

 Conventionally, plywood, fiberboard, particle board, gypsum board, rock wool board, wood wool cement board, silica board, etc. have been used as building board materials used for roof base materials, interior wall materials, floor materials, etc. of buildings.

[0003] Such building boards are porous, and molds are generated inside and on the surfaces of the building boards when used in highly heat-insulated and airtight buildings. In addition, plywood, fiber board, particle board, etc. generate formaldehyde, which is a social problem.

[0004] Even if the surface is painted with an antifungal paint, many molds are generated inside and on the back surface of the building board material that cannot be painted, and this has become a serious health problem.

[0005]

[Problems to be solved by the invention]

 The present invention has been made in view of such circumstances, and it is an object of the present invention to completely prevent mold and formaldehyde generated on the surface and inside of a building board.

[0006]

[Means for Solving the Problems]

 Building board materials made of synthetic resin emulsion-type paint film waterproof coating material with antifungal agent mixed under pressure or vacuum in building board material used for roof base material, interior wall material, floor material, etc. And impregnated and penetrate into the inside, and cover the front and back surfaces.

[0007]

[Embodiment of the invention]

 Plywood, fiber board, particle board, gypsum board, rock wool board, wood wool cement board, silica board, etc. for roof base material, interior wall material, floor material, ceiling, wall base material, partition wall material, etc. , Fiber reinforced boards and the like are used.

[0008] When these building boards are used in various parts of a building, the following molds are mainly generated depending on the use places and use conditions. Frequently occurring molds include gradosporium, penicillium, urocladium, alternaria, acremonium, aspergillus, trichoderma, and houma.

In order to prevent the occurrence of mold as described above, an antifungal paint containing a fungicide in various paints is generally used, and the antifungal paint is applied to a building board. However, painting is often done after building construction, only on the surface of the building boards. In addition, the building plate material may be painted or soaked in the state, but it did not penetrate into the inside of the building plate material and could not prevent mold generated from the inside.

[0010] By immersing the building board material in a synthetic resin emulsion type coating film waterproof coating material containing an antifungal agent, and simultaneously applying a pressure or a vacuum, the building board material can be impregnated and penetrated into the interior of the building board material. A precise coating can be applied.

The synthetic resin emulsion of the synthetic resin emulsion type coating film waterproof coating material used in the present invention is an acrylic resin emulsion, a vinyl acetate emulsion, a vinyl chloride resin emulsion, a vinylidene chloride resin emulsion, a styrene / butadiene emulsion. Examples include ene-based resin emulsions, epoxy-based resin emulsions, and copolymers of acrylic acid ester, styrene, ethylene, vinyl ester, vinyl acetate, synthetic rubber, and the like.

For example, these copolymers include acryl / vinyl acetate copolymer, vinylidene chloride / butyl acrylate copolymer, ethylene / vinyl acetate copolymer and the like.

In order to improve the properties of a waterproof coating material comprising a synthetic resin emulsion, if necessary, various surfactants as a dispersant, an emulsifier for stabilizing the emulsion, an emulsion wrinkle inhibitor, a thickening agent, Agents, anti-sagging agents, anti-settling agents, anti-freezing agents and the like may be added. Further, a plasticizer which gives flexibility, a stabilizer which prevents deterioration by heat or light, and the like may be added for the purpose of improving performance.

The fungicide to be added to the synthetic resin emulsion type coating film waterproof material does not deteriorate or deteriorate when mixed into the coating material, has a certain durability after application, and is resistant to all molds generated. It must have drag. Examples of fungicides include organotin compounds, organophosphorus compounds, antibacterial zeolites, benzimidazole compounds, tetrachloroisophthalonitrile compounds, and the like. Can be used.

[0015]

【Example】

 Hereinafter, embodiments of the present invention will be described.

Example 1 5 parts by weight of a fungicide, tetrachloroisophthalonitrile, was added to 100 parts by weight of a nonflammable emulsion-type acrylic coating waterproofing material (trade name: “Roll Mighty”, manufactured by Ribor Co., Ltd.) did. A particle board and a plywood having a size of 200 mm x 200 mm and a thickness of 12 mm were immersed in the waterproof material, and the inside of the waterproof material tank was evacuated for 1 minute, and then the particle board and the plywood were taken out.

Example 2 Particle board and plywood were immersed under the same conditions as in Example 1 and the pressure in the tank of the waterproof material was maintained at 15 kgf / cm ² for 1 minute, and then the particle board and plywood were taken out.

Comparative Example 1 A particle board and a plywood were immersed in a waterproof material for 1 minute.

Comparative Example 2 Particle board and plywood not covered with anything.

In order to confirm the fungicidal effect, a sample was placed in a sealed Styrofoam box, and Gradosporium, Aspergillus niger, Alternaria, Penicillium funiculosum, Ulocladium, Fusarium, Rhizopus oryzae, Gliocladium virens, Ketomium. A mixed spore suspension of a test bacterium such as globosum was periodically sprayed and kept at a humidity of 85 to 95% and a temperature of 10 to 30 ° C., and observed for 2 months.

Table 1 shows the results of the antifungal effect.

[0022]

[Table 1]

[0023]

[Effect of the invention]

 In order to completely prevent mold from building boards, it is necessary that not only the front and back surfaces of the building boards but also the inside of the building boards be sufficiently impregnated with the fungicide. It was confirmed that the effect was obtained by immersing in a synthetic resin emulsion-type waterproof coating material containing a fungicide and applying a pressure or vacuum. Furthermore, formaldehyde generated from plywood and particle board was completely prevented.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a particle board according to a first embodiment.

FIG. 2 is a cross-sectional view of a particle board of Comparative Example 1.

[Explanation of symbols]

 1. Particle board 2. Waterproof coating material containing fungicide

Claims (1)

[Utility model registration claims] 1. A fungicidal building material characterized by impregnating and penetrating a building board material under a pressurized state or a vacuum state using a synthetic resin emulsion-type coating film waterproof coating material mixed with a fungicide. .