KR100539117B1 - Fire Resistant Interior Panel for Structures and Method of Manufacturing the Same - Google Patents

Abstract

The present invention relates to a non-combustible interior panel and a method of manufacturing the same, which is intended to prevent the damage of life and collapse of buildings by smoke or toxic gases by maintaining the strength at high temperatures without generating toxic gases during a fire accident. .

The non-combustible interior panel according to the present invention is composed of 50 to 85% by weight of kaolin, 10 to 35% by weight of phosphoric acid, 1 to 5% by weight of fiber reinforcing agent and 1 to 20% by weight of lightweight aggregate based on 100% by weight of the total mixture. It is characterized by. In addition, fillers or curing agents may be further mixed to form the composition. Method for producing a non-combustible interior panel according to the invention, the material mixing step of mixing kaolin, phosphoric acid, fiber reinforcement and lightweight aggregate; A product molding step of compression molding the mixture mixed in the material mixing step at 50 to 150 kg / cm 2; And, it comprises a curing step of curing by heating the molded product.

Description

Fire Resistant Interior Panel for Structures and Method of Manufacturing the Same}

The present invention relates to a non-combustible interior panel and a method for manufacturing the same, and more particularly, to prevent smoke or toxic gas from occurring in various fires, and to maintain strength at high temperature to reduce human injury and property loss. It relates to a non-combustible interior panel and a method of manufacturing the same.

Interior panels are installed in residential spaces such as houses and offices, vehicles, aircraft and ships.

The interior panel according to the prior art has been used as a main caking agent of organic resins such as melamine resin and phenol resin, the addition amount is required at least 10% or more.

Therefore, according to the interior panel in the prior art, there is a limit in the heat resistance and fire resistance in the nature of the organic material, there is a risk of the generation of toxic gas in the event of a fire, has the disadvantage of not maintaining the strength of the plate at a high temperature. These shortcomings, for example, large fires such as the Daegu subway disaster and E-land fires, as well as large and small fire accidents are confirmed, and in the event of such a fire, the internal panel is burned with toxic gases generated by inhaling toxic gases. Injury of the respiratory system, suffocation, etc. is great, and as the internal panel is easily collapsed due to failure to maintain the strength at high temperature, there is a problem of loss of life and loss of property. Therefore, these problems will continue to arise with the previous flame retardant materials, it is time to develop a non-flammable material to solve the fundamental problem.

The present invention is to solve the above-mentioned conventional problems, smoke or toxic gas is not generated during the fire, the strength of the plate is maintained as it is not deteriorated at high temperatures, non-flammable with water resistance, hygroscopic resistance, sound insulation and insulation It is to provide an interior panel and a method of manufacturing the same.

In addition, another object of the present invention is to increase the added value by utilizing a relatively rich amount in the domestic, the purchase cost of the raw material is cheap, easy to purchase raw materials.

Non-combustible interior panel according to the present invention provided to achieve the above object, 50 to 85% by weight of kaolin, 10 to 35% by weight phosphoric acid, 2 to 5% by weight fiber reinforcing agent and 3 to 3% by weight of aggregate based on 100% by weight of the total mixture It is characterized in that 20% by weight is mixed.

According to the present invention, the filler or the curing agent may be further mixed.

Method for producing a non-combustible interior panel according to the invention, the material mixing step of mixing kaolin, phosphoric acid, fiber reinforcement and lightweight aggregate; A product molding step of molding the mixture mixed in the material mixing step; And, it comprises a curing step of heating and curing the molded product, the product forming step is characterized in that the compression molding of the mixture to 50 ~ 150kg / ㎠.

In the curing step, it is preferable to cure the molded product at 90 ~ 200 ℃.

The features and advantages of the present invention will become more apparent from the following detailed description. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

The non-combustible interior panel according to the present invention is manufactured by mixing inorganic caking agents such as kaolin, phosphoric acid, fiber reinforcing agent and lightweight aggregate as raw materials.

The mixing ratio of the material constituting the incombustible interior panel according to the present invention is, for example, 50 to 85% by weight of kaolin, 10 to 35% by weight of phosphoric acid, 2 to 5% by weight of fiber reinforcing agent, and 3 to 3% of light aggregate based on 100% by weight of the total mixture. 20 wt% may be mixed.

The kaolin is mainly scattered in the southern part of the country, according to its quality is divided into high and low, the high quality kaolin is almost exhausted and relatively low grades, and in the present invention, regardless of the quality of the kaolin Kaolin may be used, but it is preferable to use low-grade kaolin from the point of view of resource recycling and cost.

The mixing amount of the kaolin is limited because there is no lower limit of the amount of kaolin minerals added, but it is generally preferred to add 50 wt% or more, and when 85 wt% or more is added, low strength may occur due to lack of coking force.

The phosphoric acid is used as an inorganic caking additive, and there is no particular limitation on the content, but when a low concentration of about 60% is used, there is a difficulty in the drying process due to evaporation of the contained water, energy is consumed, and a low intensity phenomenon appears. It is better to use a high concentration if possible. When the amount of phosphoric acid is limited, the addition amount of phosphoric acid is less than about 10% by weight, and the strength is lowered due to lack of coking force. When the amount of phosphoric acid is more than about 35% by weight, problems such as leakage of the composition during press molding due to excessive liquid phase This is because it occurs. The phosphoric acid is preferably used is phosphoric acid (H 3 PO 4) that can increase the caking force.

The fiber reinforcing agent serves to enhance both room temperature strength and high temperature strength at the time of fire, and refers to inorganic fibers, such as rock wool, glass fibers and other ceramic fibers, and evenly mixed with the panel composition when mixed. Should be distributed. The length of the fiber reinforcing agent is about 30mm or less and the diameter of about 10㎛ is appropriate, when the addition of less than 2% by weight can not expect the effect, when added by more than 5% by weight is excessive fiber amount is rather strength It may hurt.

The lightweight aggregates include perlite, vermiculite, cynosphere and glass balun, etc., which have the effect of reducing the weight of the panel and preventing the occurrence of crack defects. If the added amount is less than 3% by weight, the effect of addition does not appear well, and when more than 20% by weight, the specific gravity of the panel is lowered, but the strength may be insufficient.

So far, the non-combustible interior panel according to the present invention has been described as a mixture of kaolin, phosphoric acid, fiber reinforcing agent and lightweight aggregate, but the composition of the non-flammable fireproof panel according to the present invention is not limited to this, and if necessary, fillers and hardeners Can be added.

Examples of the curing agent include metal oxides such as alumina (Al ₂ O ₃ ), zirconia (ZrO ₂ ) and titania (TiO ₂ ), aluminum hydroxide [Al (OH) ₃ ], calcium hydroxide [Ca (OH) ₂ ] and magnesium hydroxide [ Metal hydroxides such as Mg (OH) ₂ ] are preferred. The curing agent is an optional element that can be added to kaolin, phosphoric acid, fiber reinforcement and lightweight aggregate as needed, and an appropriate amount is added at the time of addition. Although the properties of the panel are different depending on the presence or absence of the addition of the curing agent, there is no big difference depending on the amount of the addition, so the curing agent is added in an appropriate amount.

Hereinafter, a method of manufacturing a non-flammable interior panel according to the present invention.

(S10) material mixing step. Kaolin, phosphoric acid, fiber reinforcement and light weight aggregates are mixed in a defined proportion. At this time, solid kaolin, fiber reinforcing agent, lightweight aggregate may be mixed first, and then liquid phosphate may be added and mixed with the mixture, and the order of addition of each material is not limited to the above. At this time, the filler and the curing agent are optionally mixed with kaolin, phosphoric acid, fiber reinforcing agent and lightweight aggregate, which are the main raw materials of the non-combustible interior panel.

(S20) compression molding. The product is molded by applying a molding pressure of approximately 50 to 150 kg / cm 2 by injecting the mixed material in the material mixing step (S10) into a mold having a shape for forming a product.

(S30) hardening. In the (S20) compression molding step, the compression molded product is put into a heating furnace to dry the product at a curing temperature of approximately 90 ~ 200 ℃. When the compression molded product is heated and dried, the moisture contained in the product evaporates and phosphoric acid exerts a caking force, thereby increasing the strength.

The above compression molding step and curing step may be performed independently or simultaneously depending on the situation.

Hereinafter, the configuration and operation of the non-flammable interior panel according to the present invention will be described in detail.

<Example 1>

1. Mix solids composed of 70% by weight of kaolin, 3% by weight of rock wool with fiber reinforcing agent, 4% by weight of perlite with light weight aggregate, and 5% by weight of alumina (Al ₂ O ₃ ) as hardening agent. Then 18% by weight of phosphoric acid is added and mixed.

2. Inject the mixture into the mold, compress and extrude at a pressure of about 100㎏ / ㎠ and mold the panel to a thickness of about 5mm.

3. The molded panel is dried at about 150 ℃ for 2 hours.

The heat-hardened specimens passed the non-combustible grade test, and the specific gravity was about 2.1 and the bending strength was 27.5㎏ / ㎠, which satisfies the product standard.

<Example 2>

1. 75% by weight of kaolin with respect to 100% by weight of the total mixture, 2% by weight of fiberglass with fiber reinforcement, 3% by weight of sinosphere as light weight aggregate, 5% by weight of aluminum hydroxide [Al (OH) ₃ ] as hardener, and 15% phosphoric acid Mix by weight.

2. The panel is molded according to the method shown in Example 2, Example 2, and the molded article is cured in the same manner as in Example 3, 3.

The interior panel manufactured by the present example passed the nonflammable test and the specific gravity was 2.2, and the bending strength was 29.4㎏ / ㎠ and the product standard specification was satisfied.

As described above, according to the non-combustible interior panel and the manufacturing method thereof according to the present invention, the heat resistance and fire resistance of the interior panel is made of only kaolin and inorganic materials that can maintain the strength even at high temperature without generating smoke or toxic gas in case of fire As it increases, it is possible to prevent suffocation caused by smoke or toxic gas in the event of a fire, and to reduce the loss of lives and property loss caused by the collapse of buildings and vehicles.

In addition, it is possible to reduce costs and prevent waste of resources by recycling kaolin, which is mainly made of kaolin, especially low-grade kaolin, which is relatively abundant in Korea.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described. Rather, it will be apparent to those skilled in the art that many changes and modifications to the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (8)

50 to 85% by weight of kaolin, 10 to 35% by weight of phosphoric acid, 2 to 5% by weight of one of the fiber reinforcing agents selected from the group consisting of rock wool, glass fiber and ceramic fiber and vermiculite, perlite, cynosphere Non-flammable interior panel, characterized in that 3 to 20% by weight of one selected from the group comprising a glass balun mixed by mixing. The non-combustible interior panel according to claim 1, wherein the phosphoric acid is phosphoric acid (H3PO4). delete delete The metal oxide such as alumina (Al ₂ O ₃ ), zirconia (ZrO ₂ ) and titania (TiO ₂ ), aluminum hydroxide [Al (OH) ₃ ], calcium hydroxide [Ca (OH _2). )] And a non-combustible interior panel, characterized in that the composition is further mixed with one hardener selected from the group consisting of metal hydroxides such as magnesium hydroxide [Mg (OH) ₂ ]. delete A material mixing step; A product forming step of molding the mixed mixture; In the method of manufacturing a non-combustible interior panel comprising a curing step of curing the molded product through the product forming step, In the material mixing step, 50 to 85% by weight of kaolin, 10 to 35% by weight of phosphoric acid, 2 to 5% by weight of fiber reinforcing agent, and 3 to 20% by weight of light aggregate are mixed with respect to 100% by weight of the total weight, In the curing step, the molded product is cured by heating to 90 ~ 200 ℃, In the product molding step, a method for producing a non-combustible interior panel, characterized in that the compression molding of the mixture to 50 ~ 150kg / ㎠. delete