KR101233995B1 - Humidity controlling wallpaper with fire resistance - Google Patents

Abstract

Disclosed are a flame retardant humidity wallpaper and a method for producing the same, which are formed only of an inorganic material and are excellent in flame retardancy and humidity control.

Method for producing a flame retardant humidity wallpaper according to the present invention comprises the steps of: (a) preparing a coating liquid comprising a precursor for the inorganic particles, a binder and a solvent; (b) coating the coating solution on an inorganic paper and then drying to form a primary coated paper; (c) coating silica sol on the primary coated paper and then drying to form a secondary coated paper; (d) heat treating the secondary coated paper; And (e) coating the inorganic binder-containing coating liquid on the heat-treated secondary coated paper and then drying to form a tertiary coated paper.

Description

Flame retardant humidity control wallpaper and its manufacturing method {HUMIDITY CONTROLLING WALLPAPER WITH FIRE RESISTANCE}

The present invention relates to a wallpaper, and more particularly, to a flame retardant humidity wallpaper and a method of manufacturing the same can be secured to flame retardancy by making only the humidity control wallpaper that can control humidity with inorganic.

Maintaining the proper temperature and humidity in the room is the most basic requirement for creating a pleasant indoor environment, and it is becoming more important according to the desire of modern people to pursue higher quality of life.

However, it is difficult to maintain a pleasant environment only by controlling the humidity depending on ventilation, and the difficulty is increasing according to the characteristics of modern buildings that are becoming larger and more closed.

Accordingly, tiles with humidity control function are attached to the wall inside the home or building to control indoor humidity. However, tiles have a heavy burden on construction and difficulties in manufacturing process such as heat treatment, so there are limitations on size and thickness.

On the other hand, even if the wallpaper of the existing paper material is given flame retardancy, there is a problem that can not fundamentally prevent its combustion.

An object of the present invention is to impart humidity control to the wallpaper to make the indoor environment comfortable, and at the same time to impart fire resistance to suppress the generation of gas by combustion in the fire to reduce the damage such as suffocation. To provide a flame retardant humidity wallpaper.

Another object of the present invention is to attach the inorganic particles to the inorganic paper, such as ceramic paper to give the humidity control, and the wallpaper produced by burning the organic material through heat treatment can be given only flame retardant made of inorganic particles, It is to provide a flame retardant humidity control wallpaper manufacturing method that can improve the adhesion.

Flame retardant humidity wallpaper according to an embodiment of the present invention for achieving the above object is characterized in that the inorganic particles for the humidity control is attached to the inorganic paper with an inorganic binder, consisting of only inorganic components.

Method for producing a flame-retardant humidity wallpaper according to an embodiment of the present invention for achieving the above another object comprises the steps of: (a) providing a coating liquid comprising a precursor for the inorganic particles, a binder and a solvent; (b) immersing inorganic paper in the coating solution and then drying to form coated paper; And (c) heat-treating the coated paper.

Flame retardant humidity wallpaper according to another embodiment of the present invention for achieving the above another object is to provide a coating liquid comprising a precursor for the inorganic particles, a binder and a solvent; (b) coating the coating solution on an inorganic paper and then drying to form a primary coated paper; (c) coating a silica sol on the primary coated paper and then drying to form a secondary coated paper; (d) heat treating the secondary coated paper; And (e) coating the inorganic binder-containing coating liquid on the heat-treated secondary coated paper and then drying to form a tertiary coated paper.

The flame-retardant humidity wallpaper according to the present invention can secure excellent humidity control performance by attaching inorganic particles such as porous alumina to the inorganic paper, and in addition, only the inorganic component is present in the wallpaper finally produced by burning all organic materials in the heat treatment process. It can remain and ensure excellent flame retardancy together.

Therefore, the flame retardant humidity wallpaper according to the present invention can control the humidity to create a comfortable environment, there is no gas generated by the combustion in the fire has the advantage of minimizing the damage such as choking.

In addition, the flame-retardant humidity control wallpaper according to the present invention is very lightweight, can be varied in size and has an advantage that can be used in a variety of places, such as ceilings as well as easy to construct.

Hereinafter, a flame retardant humidity wallpaper and a method for manufacturing the same according to the present invention will be described in detail.

In this case, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, definitions of these terms should be made based on the contents throughout this specification.

Flame Retardant Humidity  wallpaper

The flame retardant humidity wallpaper according to the present invention is characterized in that the inorganic particles for humidity control such as porous alumina are attached to inorganic paper such as ceramic paper or glass paper as an inorganic binder, and consist only of inorganic components.

Herein, the inorganic binder may correspond to that the binder itself is an inorganic binder, and even when a binder including an organic material is used, the organic binder may be burned and removed to include a state in which only an inorganic component remains.

In the case of porous alumina, moisture absorption and release are repeated through many pores, thereby imparting a humidity effect to the wallpaper.

In addition, in order to complement the humidity control, silica gel may be further attached to the surface of the porous alumina by an inorganic binder. In the case of silica gel, it is possible to obtain a silica sol as a raw material through a sol-gel reaction by heat treatment.

In the case of the flame-retardant humidity control wallpaper, it gives a humidity control effect through the porous alumina and the like, and only inorganic components such as inorganic paper, inorganic particles for humidity control, inorganic binder components are present, and thus have a property of not being burned in a fire. do.

Flame Retardant Humidity  Wallpaper manufacturing method (Ⅰ)

1 is a flow chart illustrating an embodiment of a method for manufacturing a flame retardant humidity wallpaper according to the present invention.

Referring to Figure 1, the illustrated flame retardant humidity control wallpaper manufacturing method includes a coating solution preparing step (S110), coated paper forming step (S120) and coated paper heat treatment step (S130).

In the preparing of the coating solution (S110), a coating solution including a humidity control inorganic particle precursor, a binder, and a solvent is prepared.

In the manufacturing method according to the present invention, the inorganic particles for the humidity coated on the inorganic paper may be porous alumina. In this case, the porous alumina may be prepared by heat treating aluminum hydroxide (Al (OH) ₃ ). Therefore, the inorganic particle precursor for humidity control may be aluminum hydroxide.

The solvent may be used without limitation as long as water, acetone, etc. can be widely used as a solvent.

The binder may be an organic binder or an inorganic binder. In the case of the flame-retardant humidity wallpaper produced through the manufacturing method according to the present invention, it is composed only of inorganic material. The binder can thus be an inorganic binder.

In addition, in the case of an organic binder including an organic material, since all of the organic material may be burned through the heat treatment step (S130) described later, the binder may be an organic binder.

The viscosity of the coating solution may be 10cPs ~ 100cPs. When the viscosity of the coating liquid is less than 10 cPs, there is a problem that the coating liquid easily deviates from the inorganic paper, and when the viscosity of the coating liquid exceeds 100 cPs, the viscosity is too high, making it difficult to coat the inorganic paper in a thin thickness, the thickness of the wallpaper produced as a whole It becomes difficult to adjust.

The total content of the inorganic particles precursor for humidity control and the binder is preferably 80 to 120 parts by weight based on 100 parts by weight of the solvent. When the total content is less than 80 parts by weight with respect to 100 parts by weight of the solvent, there is a problem in that the coating density and adhesion decreases, and when the total content exceeds 120 parts by weight, there is a problem in that the viscosity of the coating liquid is excessively increased.

In addition, the inorganic particle precursor and the binder for the humidity may have a ratio of about 7: 3 to 9: 1 by weight, but is not limited thereto. This may vary depending on the type of the inorganic particles for the humidity or the type of the binder.

In the coating paper forming step (S120), first, the inorganic liquid is immersed in the prepared coating liquid to coat the coating liquid on the inorganic paper by a dip coating method.

After sufficiently coating, the inorganic paper coated with the coating liquid is dried at a temperature of about 130 ° C. to form a coated paper.

Inorganic papers may be those having a mass per unit area of 60 g / m ² to 80 g / m ² . If the mass per unit area of the inorganic paper is less than 60 g / m ² , there is a problem that the strength of the wallpaper cannot be sufficiently secured. If the mass per unit area of the inorganic paper exceeds 80 g / m ² , per unit area of the wallpaper without a change in physical properties Only raw material costs rise too much, which is undesirable.

In the heat treatment step (S130) by heat-treating the coated paper, to form a wet inorganic particles from the precursor inorganic particle precursor, and also to burn all the organic matter contained in the coated paper.

The heat treatment is preferably performed at about 1 hour or more in the temperature range of 500 ℃ to 700 ℃. If the heat treatment temperature is less than 500 ℃, it may not be effective combustion of organic matter due to too low heat treatment temperature, if the heat treatment temperature exceeds 700 ℃, the high temperature stability of inorganic fibers such as glass fibers, the main component of inorganic paper It is not secured, and porous alumina is also unsuitable because its porosity may be lowered at higher temperatures.

After the heat treatment step (S130), the humidity control inorganic particles coated on the inorganic paper may be separated from the inorganic paper. In order to prevent this, the process may further include a step of immersing the heat-treated coating paper in the inorganic binder-containing coating liquid and then drying. Through the additional coating of the inorganic binder, it is possible to improve the adhesion between the humidity inorganic particles and between the humidity inorganic particles and the inorganic paper.

The binder that can be used in the coating liquid preparation step (S110) may be any of an organic binder and an inorganic binder, but a binder containing only inorganic material is used as the coating liquid used in this process, and a binder containing organic material is included. It doesn't work. This is because the binder containing the organic substance is difficult to impart flame retardancy.

Flame Retardant Humidity  Wallpaper manufacturing method (Ⅱ)

Figure 2 is a flow chart showing another embodiment of the method for manufacturing a flame retardant humidity wallpaper according to the present invention.

Referring to Figure 2, the illustrated flame-retardant humidity control wallpaper manufacturing method prepared step (S210), the first coating paper forming step (S220), the second coating paper forming step (S230), heat treatment step (S240), the third coating paper forming step (S240).

In the preparing of the coating liquid (S210), a coating liquid including a humidity control inorganic particle precursor, a binder, and a solvent is prepared. In the first coated paper forming step (S220), the coating liquid is coated on the inorganic paper and then dried to form a first coated paper.

Since the coating solution preparing step (S210) and the first coating paper forming step (S220) are the same as the coating liquid preparing step (S110) and the coating paper forming step (S120) described above in Figure 1 and other details, in the present embodiment The detailed description thereof will be omitted.

In the secondary coated paper forming step (S230), a silica sol is coated on the formed primary coated paper and then dried to form a secondary coated paper.

The silica sol supplements the humidity effect to the wallpaper produced by converting the gel into silica on the gel, that is, silica gel during the heat treatment.

In the heat treatment step (S240) to heat the secondary coating paper coated with the inorganic inorganic precursor precursor and the silica sol to form the inorganic particles and silica gel for humidity, and also to burn the organic matter contained in the secondary coated paper, to inorganic coating paper Form.

As described above in the heat treatment step S130 of FIG. 1, the heat treatment step S240 is preferably performed at a temperature of 500 ° C. to 700 ° C. which is a heat treatment temperature for generation of porous alumina from aluminum hydroxide. .

In the third coated paper forming step (S230), the inorganic binder-containing coating liquid is coated on the heat treated secondary coated paper and then dried to form a third coated paper.

This step (S130) serves to prevent the silica gel or humidity control inorganic particles from falling off the inorganic paper by further coating the inorganic binder.

Meanwhile, the drying temperature of each of the first coated paper forming step (S220), the second coated paper forming step (S230), and the third coated paper forming step (S250) may be about 130 ° C., but may be naturally dried at or below 50 ° C. Drying at other temperatures is also possible.

Using the manufacturing method shown in FIG. 2, flame-retardant humidity wallpaper was manufactured as follows.

After preparing a slurry using 50% concentration of water in which aluminum hydroxide particles and an organic binder were mixed, the viscosity thereof was adjusted to 20 cPs using a viscosity modifier and stirred for 30 minutes or more to prepare a coating solution.

70 g / m ² of glass paper was dip coated on the prepared coating liquid, and then dried at 130 ° C. to prepare a primary coated paper.

After coating the dried coated paper in a silica sol, and completely dried at 130 ℃ to prepare a secondary coated paper.

The secondary coated paper was heat-treated at 650 ° C. for 1 hour to burn all the organics.

Finally, the heat-treated secondary coated paper was immersed in the inorganic binder-containing coating liquid, then coated and dried at 130 ° C to prepare a tertiary coated paper (final humidity wallpaper).

As a result of experiments to burn the produced flame retardant humidity wallpaper, there was no change with the naked eye, which means that the flame retardant humidity wallpaper according to the present invention was completely burned in the heat treatment home during the manufacturing process.

3 is a graph showing the moisture absorption amount according to the relative humidity of the flame-retardant humidity control wallpaper manufactured according to the manufacturing method shown in FIG.

Referring to FIG. 3, it can be seen that as the relative humidity increases, the moisture absorption amount of the manufactured flame retardant humidity wallpaper increases.

Figure 4 shows the time required for complete moisture absorption and complete moisture-proof of the flame-retardant humidity control wallpaper prepared according to the manufacturing method shown in FIG.

In the case of the time required for complete moisture absorption, the time from the dry state to the relative humidity of 90% was measured until the moisture absorption amount became constant.In the case of the time required for complete moisture absorption, the relative humidity was 90% to 50% relative humidity. When it lowered to%, it measured the time until the moisture absorption moisture content becomes constant.

Referring to FIG. 4, it can be seen that the time required for complete moisture absorption and complete moisture absorption is about 1 hour, respectively, and the performance of the manufactured humidity control wallpaper is almost completely expressed in about 1 hour.

5 is a graph showing repeated moisture absorption and moisture proof according to the humidity change of the flame-retardant humidity control wallpaper manufactured according to the manufacturing method shown in FIG.

To see this, the relative humidity was maintained at 90% for up to 1 hour, the relative humidity was maintained at 50% for up to 2 hours, and then the above process was repeated.

Referring to Figure 5, the flame-retardant humidity wallpaper produced according to the change in relative humidity can be seen that there is no problem in durability by repeating the moisture absorption and moisture-proof up to the maximum moisture absorption amount according to each relative humidity, and also relative humidity 50% ~ 90 In case of%, it can be seen that the humidity performance is about 25g / m ² .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. . Accordingly, the true scope of the present invention should be determined by the following claims.

1 is a flow chart illustrating an embodiment of a method for manufacturing a flame retardant humidity wallpaper according to the present invention.

Figure 2 is a flow chart showing another embodiment of the method for manufacturing a flame retardant humidity wallpaper according to the present invention.

3 is a graph showing the moisture absorption amount according to the relative humidity of the flame-retardant humidity control wallpaper manufactured according to the manufacturing method shown in FIG.

Figure 4 shows the time required for complete moisture absorption and complete moisture-proof of the flame-retardant humidity control wallpaper prepared according to the manufacturing method shown in FIG.

5 is a graph showing repeated moisture absorption and moisture proof according to the humidity change of the flame-retardant humidity control wallpaper manufactured according to the manufacturing method shown in FIG.

Claims (19)

Flame-retardant humidity control wallpaper, characterized in that the inorganic particles made of porous alumina and silica gel (Silica Gel) is attached to the inorganic paper as an inorganic binder, consisting of only inorganic components. delete delete The method of claim 1, The inorganic paper is a flame retardant humidity wallpaper, characterized in that the ceramic paper or glass paper. (a) preparing a coating solution comprising a precursor for inorganic particles, a binder, and a solvent; (b) immersing inorganic paper in the coating solution and then drying to form coated paper; And (c) heat-treating the coated paper; and After the heat treatment, the step of immersing the heat-treated coating paper in an inorganic binder-containing coating liquid and drying; further comprising a flame retardant humidity wallpaper. delete The method of claim 5, The method for producing a flame-retardant humidity wallpaper, characterized in that the inorganic particle precursor for humidity control is aluminum hydroxide. The method of claim 5, The viscosity of the coating solution is 10cPs ~ 100cPs characterized in that the flame-retardant humidity wallpaper wallpaper manufacturing method. The method of claim 5, The total content of the inorganic particle precursor for the humidity control and the binder is 80 to 120 parts by weight based on 100 parts by weight of the solvent, characterized in that the flame-retardant humidity wallpaper manufacturing method. The method of claim 5, The inorganic paper is a method of producing a flame-retardant humidity wallpaper, characterized in that the mass per unit area of 60 ~ 80 g / m ² . The method of claim 5, The heat treatment is a flame-retardant humidity wallpaper, characterized in that proceeding at a temperature of 500 ℃ ~ 700 ℃. The method of claim 5, The binder is an organic binder or an inorganic binder, characterized in that the flame-retardant humidity wallpaper manufacturing method. (a) preparing a coating solution comprising a precursor for inorganic particles, a binder, and a solvent; (b) coating the coating solution on an inorganic paper and then drying to form a primary coated paper; (c) coating a silica sol on the primary coated paper and then drying to form a secondary coated paper; (d) heat treating the secondary coated paper; And (e) coating the inorganic binder-containing coating solution on the heat-treated secondary coated paper and then drying to form a tertiary coated paper. 14. The method of claim 13, The method for producing a flame retardant humidity wallpaper, characterized in that the inorganic particle precursor for humidity control is aluminum hydroxide. 14. The method of claim 13, The viscosity of the coating solution is 10cPs ~ 100cPs characterized in that the flame-retardant humidity wallpaper wallpaper manufacturing method. 14. The method of claim 13, The humidity control inorganic particle precursor and the binder is added to 80 to 120 parts by weight based on 100 parts by weight of the solvent, characterized in that the flame-retardant humidity wallpaper manufacturing method. 14. The method of claim 13, The inorganic paper is a method of producing a flame-retardant humidity wallpaper, characterized in that the mass per unit area of 60 ~ 80 g / m ² . 14. The method of claim 13, The heat treatment is a flame-retardant humidity wallpaper, characterized in that proceeding at a temperature of 500 ℃ ~ 700 ℃. 14. The method of claim 13, The binder of step (a) is a flame retardant humidity control wallpaper manufacturing method, characterized in that the organic binder or inorganic binder.

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