JP2008094659A - Humidity conditioning wall coating material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem that a method of finishing a wall with a plastering material using no organic solvent or the like is often used recently because of situations that a high air tight and theramlly insulated house relying on mechanical ventilation is weak against mechanical damage or electric power interruption or "sick house" sindrome arises and then, a house left to natural venturation without relying on a machine is being re-evaluated, but the method is less than ideal because thick coating is generally impossible, a lot of skill is required, work period is prolonged and the supply of plaster or diatom earth is made short to be expensive. <P>SOLUTION: The humidity conditioning coating wall material comprises ≥60 wt.% and ≤90 wt.% inorganic material prepared by mixing a powdery body comprising clinoptilolite based fired zeolite and mordenite based fired zeolite in the mixing ratio of (1:2) to (1:8). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a coating wall material that is excellent in humidity control and odor absorption, has good workability, and has sufficient strength.

  A painted wall refers to a wall finished with a so-called plastering material such as mortar, plaster, plaster, etc., and has a long history as a form of wall finishing, and is still one of the typical finishing methods. Compared to the method of pasting boards and panels that have been surface-treated in advance, the surface can be finished seamlessly, and the flexibility of adapting to the surface treatment of a uniquely shaped structure is also possible. There is an advantage that there is a degree.

  In addition, highly airtight and highly insulated houses that rely on mechanical ventilation promise to maintain the indoor environment on the premise of machine operation, so they are vulnerable to machine failures and power outages, and once they stop functioning. The comfort as a living space is very poor.

Therefore, attention has been paid again to houses in which the inner wall is made up of painted walls and natural ventilation is performed without relying on machines. For example, “Stucco coating” is applied after plastering slaked lime (shellfish ash), tsuno-mata (powder), and water soaked with water in an appropriate amount and thoroughly dissolved with water. Because it is a work and is not a solvent-based material, there is no concern that pollutants such as toluene and xylene will diffuse into the room, and it is relatively difficult for condensation to form, so it is difficult to generate mites and molds that cause allergies. It has been evaluated and reviewed. In addition to plaster, “diatomaceous earth” is used as a coating material.
JP 2001-163659 A

However, in the case of plaster coating, compared to the new building material finish that has been used as a building interior material in recent years, thick coating is not possible and skill is required for work, and it takes a work period and lacks airtightness. It was hard to say the ideal method. Furthermore, whether it is plastered or diatomaceous earth, the market volume is low and even if it is available, it is expensive.

  Therefore, in view of these points, the present inventor finally made the present invention as a result of many years of earnest research to provide a plastering material that becomes a coating wall material excellent in humidity control and deodorization by simply adding water and mixing. It is characterized by the fact that the mixing ratio of the fine powdered material made of clinoptilolite-based calcined zeolite and the sand granular material made of mordenite-based calcined zeolite is a weight ratio of 1: 2 to 1: 8. The material is contained in a raw material ratio of 60% by weight or more.

  Here, the “clinoptilolite-based calcined zeolite” is a typical soft zeolite, and those produced in Shimane Prefecture were suitable within the range in which the inventor made a trial experiment. After baking this at 400 degreeC or more, for example, it grind | pulverizes and sifts and uses it as a fine powder material. This fine powder becomes clayy when water is obtained.

  “Mordenite-based calcined zeolite” is a typical hard zeolite, and also a product from Shimane Prefecture was a suitable coating material material. Similarly, this is baked at 400 ° C. or higher, and then pulverized and sieved to obtain a material. The particle size is approximately 0.5 to 3.0 mm.

  In the present invention, the thus obtained “clinoptilolite-based calcined zeolite” (clay-like body) and “mordenite-based calcined zeolite” (sand granule) are mixed. The mixing ratio is 1: 2 to 1: 8 by weight, and the total weight of these zeolites is 60 wt% to 90 wt% in the total amount. Here, “total amount” does not include the amount of water added before work.

  When the “clinoptilolite-based calcined zeolite” is less than this ratio range (that is, 1/9 or less), the bond strength becomes small and “cracking” tends to occur after drying. If the ratio is larger than the ratio range (that is, 1/3 or more), the bonding force is too strong and shrinks when it is dried, and is easily peeled off from the underlayer. In general, plastering is to obtain the thickness by overlapping the coating layers, so the judgment of the bonding strength between the layers greatly affects the finish. When the upper layer (overcoat layer) has a stronger binding force than the lower layer (underlayer), the upper layer is turned up and peeled off. Therefore, the lower layer needs to be stronger than the upper layer. In relation to the present invention, it is preferable to increase the mixing ratio of the “mordenite-based calcined zeolite” and increase the ratio of the binding material as the upper layer is formed. However, as far as the present inventors have experimented, it was a general work on the base of the board, and when the thickness of the coating film was about 5 mm, the coating wall material of the present invention could be used to finish it by a single coating. Therefore, it is not limited to the method of overlapping the coating layers.

Further, the humidity control coating material according to the present invention contains various materials in addition to the two types of zeolite. However, the total amount thereof is less than 40% by weight of the entire coating wall material. Specific materials are not particularly limited, but examples include paste materials made from seaweed tsunomata, “susa” made from straw, hemp, paper, etc., and various “plasters”.

The humidity control coating material according to the present invention is an extremely advanced invention having the following effects.
(1) Simply by adding water and mixing, it becomes a coating wall material with excellent humidity control and deodorization.
(2) Since it does not contain solvent-based materials, it does not cause or exacerbate so-called “sick house syndrome”.
(3) Small investment in manufacturing equipment.

  Hereinafter, the present invention will be described in more detail.

Clinoptilolite-based zeolite 20.0 parts by weight Mordenite-based zeolite 50.0 parts by weight Neutral plaster 27.1 parts by weight Paste material (Tsunomata) 2.5 parts by weight Susa (main material: straw) 0.4 parts by weight ( Zeolite is calcined at 400 ° C)
Is mixed into a plastering mixer, and 40.0 parts by weight of tap water is mixed and stirred. This was constructed as a humidity control wall material on one of the four inner walls of one room constructed assuming a wooden mortar house. The neutral plaster used is a gypsum plaster manufactured by Yoshino Gypsum Co., Ltd. (trade name: C Top), but other neutral plaster may be used. Moreover, not only neutrality but what used alkaline plaster also belongs to this invention. The mixing ratio is a matter that should be set as appropriate according to the plaster to be used, and therefore, it may be a mixing ratio that is equal to or greater than this example or the following. All experiments were performed with the same amount and configuration to minimize the difference in evaluation due to plaster and others.

Clinoptilolite-based zeolite 9.0 parts by weight Mordenite-based zeolite 61.0 parts by weight Neutral plaster 27.1 parts by weight Paste material (Tsunomata) 2.5 parts by weight Susa (main material: straw) 0.4 parts by weight ( Zeolite is calcined at 400 ° C)
Is mixed into a plastering mixer, and 40.0 parts by weight of tap water is mixed and stirred. This was applied to the other surface of the one room as a humidity control coating wall material.

[Comparative Example 1]
Clinoptilolite-based zeolite 30.00 parts by weight Mordenite-based zeolite 40.00 parts by weight Neutral plaster 27.1 parts by weight Paste (Tsunomata) 2.5 parts by weight Susa (main material: straw) 0.4 parts by weight ( Zeolite is calcined at 400 ° C)
Is mixed into a plastering mixer, and 40.0 parts by weight of tap water is mixed and stirred. This was applied to the other one surface of the above-mentioned one chamber as a humidity control coating wall material. The neutral plaster used here is the same as that used in Example 2.

[Comparative Example 2]
Clinoptilolite-based zeolite 5.00 parts by weight Mordenite-based zeolite 65.00 parts by weight Neutral plaster 27.1 parts by weight Paste material (Tsunomata) 2.5 parts by weight Susa (main material: straw) 0.4 parts by weight ( Zeolite is calcined at 400 ° C)
Is mixed into a plastering mixer, and 40.0 parts by weight of tap water is mixed and stirred. This was applied to the remaining one surface of the above-mentioned one chamber as a humidity control coating wall material. The neutral plaster used here is the same as that used in Example 2.

The workability when constructing the above four surfaces was particularly preferred in Example 1, but in general, both Examples 1 and 2 were good.
Further, workability was not particularly troublesome in the case of Comparative Example 1, but in the case of Comparative Example 2, there was a defect that the iron carrying was poor and it was difficult to hold down.

  Next, the surface state of the coating wall surface 21 days after construction was compared. As a result, with regard to the beauty of the finish, Examples 1 and 2 and Comparative Examples 1 and 2 had a clear difference. In Examples 1 and 2, the surface finish was not cracked or peeled off. On the other hand, in the case of Comparative Example 1, when the surface is touched, the powdery clay is attached to the hand, resulting in a poor finish, and in the case of Comparative Example 2, cracks are scattered and repairs are made immediately. Finished as necessary. Therefore, by these four experiments, the coating wall material obtained by properly mixing the plaster amount has a mixing ratio of fine powder made of clinoptilolite-based calcined zeolite and sand granular material made of mordenite-based calcined zeolite. When the weight ratio was set to 1: 2 to 1: 8, it was found that both the workability of being easy to press and good carrying of the iron and the good finish of being able to obtain a beautiful smooth surface that hardly caused cracking and peeling off were obtained. .

  Furthermore, when the mixture of the fine powder made of the clinoptilolite-based calcined zeolite and the sand granule made of the mordenite-based calcined zeolite has a raw material ratio of 60% by weight or more and 90% by weight or less, also from the viewpoint of raw material cost. It is also favorable from the viewpoint of reducing the onset of sick house syndrome, which has become a recent problem.

Claims (1)

  An inorganic material in which the mixing ratio of the fine powder made of clinoptilolite-based calcined zeolite and the sand granule made of mordenite-based calcined zeolite is a weight ratio of 1: 2 to 1: 8 is a raw material ratio of 60% by weight or more. A humidity control coating material characterized by containing 90% by weight or less.