JPS587341A - Sheet-shaped material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a sheet-like article in which inorganic fibers are bonded with an organic binder, in which the organic binder has a specific distribution in the thickness direction of the sheet-like article. The present invention relates to a sheet material with excellent properties. More specifically, in a sheet-like product in which inorganic fibers are bonded with an organic binder, the amount of binder in the front and back skin layers is 4 to 25.
Weight-1 is preferably 5 to 20% by weight, and the amount of binder in the intermediate layer is 2 to 20% by weight, preferably 3 to 15% by weight, and is less than the binder amount in the front and back skin layers and 174% by weight. This relates to a sheet-like product in which the average amount of binder over the entire thickness is in the range of 4 to 20% by weight, preferably 5 to 15% by weight, and the sheet-like product that takes 1L has fire retardant properties. It can be widely applied to structures and various types of one-piece equipment* as a heat insulating material and construction material with excellent fire resistance, heat insulation, soundproofing, dew proofing, weather resistance, mechanical strength, and workability in folding plates. be.

In recent years, with the promotion of energy conservation, various types of insulation materials have been used in many fields. Among insulation materials, organic 7 ohm materials such as polyurethane foam and polystyrene foam have a major drawback in terms of fire resistance! Insulating materials made from inorganic woven porcelain, such as Glass Woven Rock Woo A/, have been mainly used for buildings and equipment kits that are at risk of large fires. However, these extremely lightweight inorganic insulation materials generally have no binder or have a very small amount of phenolic resin adhered to them in a non-porous manner. 9. It cannot be used in areas that are subject to severe handling, such as insulation for folded-plate roofs. Therefore, attempts have been made to use sheet-like materials having a thickness of about 5 to 25 W and having appropriate flexibility, which are made by bonding inorganic fibers with various binders, as heat insulating materials in fields that are subject to such severe handling. However, all of these conventional sheet-like products are sheets obtained by a manufacturing method called a dry method, and because the amount of binder is small, it is not possible to uniformly cover the surface of the inorganic fibers. - Due to the lack of binder in the intermediate layer of the material, the inherent brittleness of non-aluminum fibers cannot be improved, for example when used as insulation for folded-plate roofs. During the process of passing through the folding plate processing row, the a-layer was crushed and torn, making it unsuitable for this purpose. On the other hand, the technology of forming inorganic fibrous materials into plate or paper shapes by wet papermaking has been widely used in the fields of gaffs paper, asbestos paper, rock wool Oi board, asbestos slate board, etc. Both gi or board obtained by the wet papermaking method have a small amount of binder and a specific gravity of 0.4.
The paper-like material is combustible, but is brittle and has poor flexibility, and is thin and has no heat insulating properties. On the other hand, board-shaped materials have excellent strength, but are not flexible and brittle, and cannot be used as insulation materials for folded-plate roofs as described above.

In view of the current situation, the inventors of the present invention have conducted intensive studies to develop a sheet-like material that has excellent fire retardant properties and can withstand severe handling, and as a result, they have arrived at the present invention.

That is, the present invention uses inorganic lI! A sheet-like article in which the male parts are bonded with an organic binder, characterized in that the distribution of the organic binder in the thickness direction is within the range defined by the following formulas (1) to (4). It can be made with a sheet-like material that has excellent properties.

4≦Xi≦2s (1)2≦Xj
≦20 (2) x1/4≦Xj≦X
i (5) 4≦X≦20
:, (4) (However, i=1 or n%j=z,
3,..., or n-1, Xl,...,
Xn indicates the amount of organic binder (weight -) in the test piece after cutting the sheet material into n layers (5≦n≦10) parallel to the surface so that the thickness is uniform in the thickness direction, represents the average amount II (by weight) of the organic binder over the entire thickness at any point on the sheet material. ) Furthermore, in the present invention, the formula (1) is 69 when 5≦Xi≦20 (s),
Equation (2) is 5≦Xj≦1s (6),
It is more preferable that the formula (4) satisfies 5≦X≦15 (7).

Specifically, a sheet-like material that satisfies the above formula has a binder amount of 4 to 25 weight - 1 in the front and back skin layers, preferably 5
~20 weight - thickness, middle layer nok inder amount is 2~2
0 weight - 1 Preferably 5 to 15 weight, less than the amount of binder in the front and back skin layers, and 1
/4 times the amount, and the average amount of binder over the entire thickness is in the range of 4 to 20 kg, preferably 5 to 15 kg. These sheet-like materials usually have a thickness of 0.5 to 25 rin and a thickness of 0.08 to 0.40 f/
It has an apparent density of d and is laminated with a thin metal plate (
It has combustible properties that can be processed into folded plates (or laminated on thin metal plates with foam interposed), and is also fireproof, fireproof, heat insulating, soundproof, weatherproof, waterproof, and dewproof. It satisfies all the performance requirements as a building material and a heat insulating material. Such a sheet-like product can be obtained by a surface wet paper forming method as described below.

The present invention will be described in detail below.

Inorganic fibers used in the present invention include asbestos, rock wool, gaff fiber i//1. Kei II! Cef mix # of I full quality etc. Examples include fibers, alumina fibers, P-fibers, and the like. Both are used in the form of cut short fibers. It is preferable that asbestos be as long as possible. Rockwood is the most suitable material for the purpose of the present invention, and it can be used regardless of whether it is made from natural rock or slag. It is preferable to use a material with a small content of particles, and a material called granular cotton or layered cotton can be used as a starting material. As the glass fiber, chopped or Gutzlar can be used as a starting material, but it is preferable to use one that can be uniformly dispersed in water. Ceramic fibers, 7μ mina fibers, longitudinal fibers, etc. all have excellent heat resistance, but are expensive. You can use a chopped stewund shape or a spout shape.

Moreover, it is also possible to use these inorganic fibers in combination as appropriate depending on the purpose. The diameter of these inorganic ams is 0.1
〜10 units, the fiber length is preferably about 1~SaW,
It is well dispersed in water and is well entangled in the resulting sheet material, increasing its strength.

In the present invention, in particular, by replacing some of the inorganic fibers with organic fibers having a non-circular cross section and using them in combination, it is possible to alleviate the irritation to the skin peculiar to inorganic fibers. Although the reason for this effect is unknown, organic fibers obtained by wet coagulation such as vinylon, rayon, and acrylic are effective. The greater the amount of the organic fiber added, the more remarkable the effect of alleviating skin irritation becomes; however, in consideration of fireproofing performance, the amount of organic fiber added is 0 to 20% by weight, preferably 2 to 10% by weight.
Inorganic fibers) are suitable, and the fiber length is preferably 5 to 10 cod.

In the present invention, the organic binder used for the purpose of coating the surface of inorganic fibers, promoting entanglement, and increasing the strength, elastic recovery power, and processability of the obtained sheet material is dissolved or dispersed in water. A water-soluble polymer, an emulsion, or a latex-like resin is preferable. Examples of water-soluble polymers include polyvinyl 7 μl polymers and polyacrylic acid polymers.

Examples include polyethylene oxide, carboxymethyl cellulose, casein, starch, etc., and a wide variety of synthetic and natural water-soluble polymer materials can be used. Examples of emulsion or latex-like resins include polyvinyl acetate and copolymers thereof, polyvinyl chloride and copolymers thereof, polyacrylic acid esters and copolymers thereof, and polystyrene and copolymers thereof in the form of emulsions.

Examples include polyurethane polymers, and hydrosols such as ethylene-acrylate copolymers can also be included in this category.

In the present invention, the distribution of the organic binder in the thickness direction in the sheet material is particularly important.

Only when the material has a distribution in a specific range like the above-mentioned 1', it can be an effective sheet material that can withstand severe handling such as folding. First of all, it is preferable that the front and back skin layers have slightly more binder than the inner layer, or the same amount, from the viewpoint of protection against rubbing by the loaf during folding plate processing, surface protection during handling, weather resistance, etc. The lower limit of the amount of binder in the intermediate layer is determined from the amount necessary to uniformly coat the inorganic fibers to the extent that the inorganic fibers are not pulverized during the folding process, and the upper limit is determined from the fire prevention performance. That is, the above conditions can be satisfied if the amount of binder in the intermediate layer is 2% by weight or more, preferably 5% by weight or more, and the average value over the entire thickness is 4% by weight, preferably 5% by weight or more. The greater the amount, the better the mechanical properties.

As a method for measuring the amount of binder in a sheet-like material as described in the present invention, for example, when determining the distribution in the thickness direction,
Hit n cylindrical specimens (n = 5 to 1G) of ~soW'
Next, each test specimen was cut into Kn layers parallel to the surface so as to have an even thickness, and each cut layer was collected layer by layer, numbered 1 to n, and placed in a desiccator at room temperature. After leaving it for a night, I put it in a different porcelain crucible and boiled it for SSO~600.
The weight loss of the mth layer when baked in an electric furnace at ℃ for 50 to 60 minutes was taken as the weight loss of the mth layer, and the weight loss of the mth layer was similarly determined for the sheet material BK produced in the same manner without using any organic binder. When the weight loss of layer m is defined as Bm, the amount of binder in layer JIIm can be determined as Xm = m - B m. When the organic substance in the sheet-like material is only the binder, it may be determined as Xmwm for convenience.

In the present invention, in order to prevent the organic binder from migrating to the surface of the sheet material, to control the desired binder distribution, and to improve the water resistance, weather resistance, and strength, it is necessary to The use of cross-linking agents is an important technique; in some cases, for example in self-cross-linking emulsions and heat-coagulated latexes, the starting material of the organic binder itself can undergo appropriate cross-linking or cross-coagulation under the conditions. It can also be used to achieve the same effect as using a cross-linking agent. The type of crosslinking agent should be selected depending on the organic binder used; for example, iso-cyanate compounds for polyvinylalco-IV thread polymers.

Examples include urea compounds, *phosphoric acid and its N114.5) Ivconi7 compounds, titanic acid compounds, etc. For polyvinyl acetate emulsions and polyacrylic acid ester yarn emulsions, modified polyamideimide epoxy Examples include resin and isocyanate yarns. The amount of the crosslinking agent added should be determined appropriately depending on its effectiveness, and generally 500% of the organic binder is added.
Used within % by weight. The addition time may be such that the aqueous solution is mixed with the binder resin in advance and used in the sheet-like material, or it may be impregnated separately before or after the sheet-like material is impregnated with the binder.

Furthermore, in the present invention, the fireproofing properties and fire resistance of the obtained sheet material are significantly improved.99. It is also possible to use an inorganic binder in combination with an organic binder for the purpose of increasing weather resistance, strength, and rigidity. Examples of the inorganic binder include silicic acid compounds, phosphoric acid compounds, phosphoric acid compounds, aluminum hydroxide, hydraulic gypsum, various cements, and calcium silicate compounds. These inorganic binders can be pre-added to the stock slurry for papermaking in the form of an aqueous solution or water-dispersed slurry, or can be added by being impregnated into the obtained sheet-like material. The amount added should be determined depending on the purpose of use of the sheet material and its properties, and from the viewpoint of flexibility, it is preferable to use within a range of 50% by weight when added to the material binder. .

In the present invention, it is also possible to add or coat coloring agents such as various dyes and pigments, fungicides, and water repellents as necessary. In addition, aluminum hydroxide and dihydrate stone are added for the purpose of increasing fire protection performance5. fillers such as Hokusand, ＊#力〜shikum, antimony trioxide, and for the purpose of weight reduction, barphyte% S'')X/<A/-n1 foamed vermiculite,
Lightweight figurines such as hollow glass bulbs and Tomimo may be added.

In the present invention, the strength, water resistance, fire resistance,
For the purpose of increasing moisture resistance, the middle layer of a sheet-like material or!
! ! ! It is also possible to combine a sheet-like reinforcing material on the surface. As sheet-like reinforcing materials, various films and metal coatings are suitable especially when moisture-proofing and waterproofing properties are required, and cloth, paper, cheesecloth, and nonwoven materials are suitable when moisture-permeable and moisture-absorbing properties are required. A porous material of cloth is preferred. These sheet-like reinforcing materials can be formed and composited at the same time during paper forming, or they can be composited by applying an adhesive to the obtained sheet-like material.

The surfactant used in the process of manufacturing the sheet material according to the present invention is used to create foaming (5) by stirring a slurry-like liquid consisting of an inorganic pongee, water, and an organic binder. (additional amount necessary to produce the desired amount) and is generally comprised of an air entraining AI (mu1jl-), a foaming agent, and a thickening agent. When using an organic binder by adding it to a slurry liquid, KIIi
It is also possible to have the role of a surfactant69; for example, polyvinyl alcohol-based polymers and polyethylene glyco-μ isolines have the above-mentioned functions. It has been found that such a surfactant can be used as an additive in order to obtain a lightweight sheet-like product and to improve the efficiency of vacuum dehydration.

Next, an example of the method for preparing a sheet-like article of the present invention will be specifically explained. First, a certain amount of the above-mentioned inorganic fibers and if necessary! 11. The organic device described above, each material, and the surfactant having a foaming action described above are dispersed in water. At this time, a small amount of a cationic activator may be added to increase the dispersion effect.Dispersion method Relatively gentle stirring with a tiφest is preferable, and vigorous beating with a device such as a beater will break the fibers. However, it is undesirable to form a layer of spherical aggregates. The dispersed concentration of the inorganic aai (preferably 1 to 5% by weight, and should be selected appropriately depending on the purpose of use of the obtained sheet material. The slurry is made of surfactant.
From IK, foaming occurs in Klk in a#, and there are countless fine bubbles in mK. At this point, the paper is continuously formed on a rope-like or porous base material. Generally speaking, there are two methods for making paper, the circular net method and the Fourdrinier method, but when thin, homogeneous paper and strength are required, fibers are made from a slurry with a relatively low dispersion concentration.
On the other hand, for fields that require thick, lightweight insulation, the Fourdrinier method, in which slurry with a relatively high dispersion concentration is discharged onto the base material and water is used, is suitable. Are suitable. It is also possible to form the paper using a paper-making machine such as a rotor former or hydroformer, which is a combination of both methods.

The resulting wet mat of inorganic fibers is then dehydrated using a vacuum method. Conventionally, in fields such as rock wool ceiling materials and old slate boards, (loaf) press K was applied in this process,
At the same time as dehydration, thickness precision, surface smoothness, or surface pattern is imparted.In the production of sheet-like products according to the present invention, such a (loaf) press method is used to produce the desired lightweight and flexible sheet-like products. The most suitable dehydration method is vacuum dehydration. Approximately 5 to solid content
The wet mat after papermaking containing 8 times as much water is Mat J.
It is sent to a reduced pressure zone together with the IIL or base material, and after the internal moisture is sucked out from one or both sides, it is sent to a drying zone. If the dehydration rate is increased, the drying process can be shortened and it is economical, but since the sheet becomes flattened and the specific gravity increases, it is preferable to keep the final water content within 0.5 to 2 times.

In this process, the internal fine air bubbles work effectively to prevent sheet deterioration and increase the dehydration rate. The reason for this is thought to be that the water membrane formed between the fibers prevents air from blowing through from specific locations. The dehydrated mat is dried by an appropriate method to form a sheet. As the drying method, any of the hot air tray method, hot air blowing method, heat loaf contact method, etc. can be adopted, and the suitable drying temperature is 80 to 200°C.

The method of attaching the organic binder described in the sheet-like product Km according to the present invention includes (m) a method of pre-mixing and dispersing a certain amount of a binder aqueous solution or aqueous dispersion into the souffle solution before paper-making, and then forming the paper together with inorganic fibers. (B) There is a method of impregnating the wet mat after papermaking, and after impregnating the binder with these methods, the binder is crosslinked or coagulated to prevent the binder from migrating, thereby obtaining a good sheet-like product. be able to. Especially (B
), in order to ladle binder resin into the sheet, one side of the wet mat is dehydrated under reduced pressure, and at the same time, the other side is impregnated with binder liquid, resulting in a situation where water is just replaced.9 % good sheet-like material is obtained.

Further, the method for adding the crosslinking agent and inorganic binder, which are used together with the organic binder if necessary, is as described above. Further, the crosslinking and coagulation of the binder takes place during drying, and the drying conditions are appropriately selected depending on the binder used. Further, in the present invention, the method of combining the planar reinforcing material with the sheet material as necessary is also as described above.

As mentioned above, the sheet-like material according to the present invention is particularly excellent in flexibility, fireproofing properties, fire resistance, and heat insulation properties, so it can be useful as a heat insulating material for folded plate cliff roots.

In addition, it has dew proofing, soundproofing, vibration damping, heat resistance, water and weather resistance,
It also has excellent cushioning properties, and by taking advantage of these properties, it can be widely used in civil engineering, construction, 41m defunds, household appliances, furniture, automobiles, and other industrial vehicles and ships.

To give an example of its application, first of all, in the field of civil engineering and construction, fire prevention and
Taking advantage of its fire resistance, it can be used as fire-resistant covering materials for steel frames of buildings, fire-resistant walls, etc.
It can be used as a resistant large joint material for general ceilings, walls, and floors, which is characterized by heat insulation and dew-proof properties. ,
It is also used as a water drop prevention material for hot water baths, bathhouses, etc.

These applications are fields where the properties of the sheet-like material of the present invention can be demonstrated, and furthermore, the soundproofing and vibration damping properties can be utilized for station buildings, etc.
9 internal materials of metal springs such as hole lv.

It can be used as a backing material for sliding doors, metal shutters, shutter storage boxes, etc., deck plates, backing materials for metal floors such as emergency stairs, and core materials for soundproof springs. V! It is also effective for applications such as back-up material for flooring, backing paper for fireproof wallpaper, and core material for roof and rooftop sealants. Next, in the field of factory 1 hund, it can be used as a heat insulating material for various fin piping by taking advantage of its insulation properties, and as a fire prevention and insulation material for various oak tanks, and it can be used as a lining material for optical space ducts and as a fuging material by taking advantage of its sound insulation and vibration damping properties. Applications include lining materials for air transport fin ducts, soundproofing materials for dust collectors, and further applications include lining materials for incineration equipment and combustion gas VL air ducts, and cushioning materials for air conditioning duct dampers.

Applications to equipment parts include back-up materials for gas and oil heaters, sound-absorbing and insulating materials for air conditioners and hot water boilers, and ponds for cooling and fixed-temperature freezer warehouses. , Handy truck A/, chainsaws, vibration damping materials such as rivets (to prevent white wax), Bon 1, ejector,
Proa, Beaumi/&/% hopper, cyclone, oil separator, compressor, tasshu shoot,
Vibrating screens, vibrating feeders, conveyors, forging machines, presses, cutters, trills.

Applications include soundproofing and vibration damping materials for housings and motor covers of various equipment such as pressure grinders and generators, and backing materials for general office equipment such as type filters and general office equipment such as punching machines. An example is given. In the field of home appliances and furniture, we use heat-resistant materials for bathtubs that take advantage of their fire-resistance properties, insulation materials that take advantage of their heat-insulating and heat-resistant properties for open appliances, stoves, irons, vending machines, etc., and stainless steel sinks. Condensation- and sound-proofing lining materials for baths, as well as housings and piping for refrigerators, air conditioners, air conditioners, dishwashers, etc., interiors of covers, materials, desks, porcelain nets,
Back of furniture such as lockers etc.

It can also be used as a damping material for audio products, and by impregnating it, it can also be used as a backing material for gas appliance odors and as a seal material. In the automobile field, insulation materials for car body ceilings, insulation and sound absorption materials for partition walls between the engine room and the driver's seat, #I1. Soundproofing material for trachea, 9 internal soundproofing/vibration damping materials for doors, engine rocker cover, interior material for engine enclosure slope, oil pan, fireproofing/insulation/vibration damping inner lining material for I-solink,
Soundproof internal material for the front hood engine section, soundproof and waterproof mats for the floor,
In addition to air cleaner filters, it can also be used as p-plaque fining, tough facing, and gaskets by impregnation. In the field of large vehicles and ships, inner lining materials for engine covers, insulation materials for fin piping for warm fresh water, fuel oil, etc., heat-proofing, dew-proofing, and soundproofing materials for living quarters, and insulation for cold storages of reefer ships and refrigerated cars. materials, sound-absorbing materials for side walls and ceilings of subways, etc., sound-insulating materials for engine covers of fishing boats, etc., sound-insulating materials for wheel shells of trains, subways, etc., sound-insulating materials for decks, bell lining materials, etc. Examples of uses include:

Drop lids for horizontal furnaces, converters, electric furnaces, etc. It can also be used as a joint material for molds, and as a soundproofing/dampening material around aircraft jet engines. , polyethylene foam, polystyrene foam, and III!, which have been widely used in the past. ? M can also be used as a surface material for organic foam insulation materials such as Lane 7 ohm.

In the case of lint, it improves flammability, which is a drawback of organic foams, and can be used as a non-combustible material by enveloping and bonding, thus expanding its range of uses.

The present invention will be explained in detail below by way of Examples.

The present invention is not limited to these examples in any way.
All numbers refer to parts by weight.

Dormitory 1 Example 1 200 parts (by weight) of Shirock 92 μ granular cotton made from slag, 86 parts of ethylene-vinyl acetate copolymer emulsion (concentration 50 by weight), and modified polyamide Ebichlor 11 in 780 G parts of water. /ku dorin resin (concentration sol amount $) 7
．． The mixture was uniformly mixed and dispersed with part s, 1.0 part of kanionic nonionic mam and 0.5 part of polyacrylic μamide, and foamed for further Km to obtain a sufu liquid. This souffle liquid was continuously transferred onto a stainless steel 11 pot with S2 mesh and filtered to obtain a wet mat with a smooth surface and uniform thickness. 11[? The Ettomat was further dehydrated under reduced pressure, and when the water content reached approximately 200 weight S (based on the sheet after drying), it was transferred to a hot air dryer at 140°C and dried for approximately 40 minutes using a tray method, resulting in an apparent thickness of 10 m. Lightweight with a writing scale of 0.15.
)-like substance was obtained. Put it on the sheet-like material.

As a result of measuring the distribution of organic matter I (ingu) in the thickness direction by the above-mentioned method, it was found that the sheet-like material had a very fine distribution as shown in Table 1.
A cuff iron plate with a thickness of o and 6 oss was laminated with chlorizolin; It was shown to. Furthermore, it was attached to a steel plate with a thickness of 0.40 m1, and folded at right angles with the sheet-like material facing outward using a folding plate processing machine with five rollers in the model.There was no change in appearance. There was no decrease in the thickness of the area where the -1-2 hit, and the workability of folding plates was good. In addition, the obtained sheet-like material was tested for fire retardancy using the test method specified in the Ministry of Construction Notification No. 1828, 2013. .9. Temperature difference in base material test = 23"C, which was higher than that of Toa and noncombustible materials.Furthermore, as a result of measuring the thermal conductivity of the sheet-like material, it was 0 at 25°C, OS 4M, /ea-hr
-''C was found to have a value superior to that of Tol general insulation material.The sheet-like material was composited and a small piece was cut out from the iron plate after being processed into a folded plate, and the sheet-like material was We conducted a weather resistance test using the Waeser accelerated test on the surface and found that even after 506 hours of continuous irradiation, there was no change in appearance, thickness, etc., and it had an excellent rating of 11 degrees that can be used as a general building material. It was found to have weather resistance.

Example 2 Rockku 2 made from basalt natural rock 2 Granular cotton 2
00 parts and 5011 g of glass chopped stock cut into 2 inch pieces were mixed with 1.5 parts of a cationic nonionic activator in 1 sooo@ of water, 1 part saponified polyvinyl alcohol μ solution (concentration 10% by weight) and 20 parts of isocyanate emulsion. The mixture was uniformly mixed and dispersed with 10 parts of 9 tons (117,125 kg), and further foamed to obtain a souffle liquid. This soffree liquid was made into paper in the same manner as in Example 1 to prepare a wet mat. Next, the lower surface of the web (i) is dehydrated using a slit-shaped decompression device, and at the same time, the upper surface () of the styrene-acid 9A/acid ester copolymer em
Dissolve 1 part of ginseng (concentration: 50 parts by weight) in 1000 parts of water, uniformly impregnate it with the inder liquid, and perform vacuum dehydration once again to make a wet mat with a moisture content of 180%. Dry as in Example 1 to a thickness of j5
A sheet-like material with an apparent density of 0.12 was obtained. The distribution of the organic binder in the sheet-like material in the thickness direction is
Shown in the table.

A binder-rich skin layer is formed on the front and back layers, and the intermediate layer has a uniform distribution. Because of the skin layer, *compared to the sheet-like material obtained in Example 1, there is less irritation to the skin and the appearance is good. Although the middle layer has less drying and the peel strength of the layer is lower than that of the sheet-like basket obtained in Example 1,
The workability of folded plates is good. In addition, it passed the test as a noncombustible material, and its thermal insulation properties were also good, as shown in Table 1 for its thermal conductivity.

Comparative Example 1 In the slurry stock solution used in Example 1, %p
A white water society was prepared by adding each component of the pond except for the granular cotton in the same manner. In this white water, 25 intestines thick.

Rick wool felt with the cheesecloth removed was immersed in a sheet of paper with an apparent density of 0.04, and white water was impregnated into the 7-elt while repeatedly defoaming by rubbing with a loaf. Next, 7 μg taken out from white water was dehydrated under reduced pressure, and further 160 μm
It was dried at ℃ for 40 minutes. The resulting nine sheets had a thickness of 13
MII has an apparent density of 0.08, and the binder distribution is extremely inhomogeneous as shown in Table 1, and the intermediate layer easily delaminates. The cuff with a thickness of 0.60 m1 was laminated with an iron plate and then bent using a folding plate processing machine.The middle layer of rock was crushed and separated into %2 layers. In addition, part of the surface was torn off, resulting in poor workability. As described above, the production method of impregnating dried commercially available rock t-feet with an organic binder liquid and drying it cannot produce a sheet-like material with a dense binder distribution according to the present invention. In performing post-impregnation, as shown in Example 2, one side of wet pine in a water-containing state was dehydrated under reduced pressure, and at the same time, the binder solution was impregnated from the cage, and just in time (the inner solution and water were replaced). It has been found that a good sheet-like product cannot be obtained unless a method is used.

Table 111 Example 3 11147.5 parts of Rockcoeur granules made from mineral slag and 2.5 parts of Canadian risotai - asbestos (5 Kufus)
#acid vinyl resin emulsion (
48 parts (concentration 40% by weight), 8 parts zirconyl ammonicum carbonate (concentration 15% by weight), 0.711 parts of cationic nonionic activator and polyethylene oquinide (concentration 1%)
0% by weight) and 4.41 parts of the mixture were uniformly mixed and dispersed. This stock solution was formed into a mat by paper forming in the same manner as in Example 1, and this mat was further dehydrated under reduced pressure until the water content became approximately 1zo% (based on the sheet after drying), at 180°C.
The mixture was transferred to a hot loaf and dried for about 15 minutes to obtain a sheet with a thickness of 2.4 cm and an apparent density of 0.35. The binder distribution in the sheet material is extremely uniform and V
The interlayer strength of #f is greater than that of conventional inorganic vapors. The sheet is made of non-combustible material and is suitable for piping insulation, backing, etc. alone.

Example 4 The sheet-like material obtained in Example 5 was composited with a 40 times thick polyethylene 7 ohm sheet with a thickness of 45 wt using a chloroprene adhesive, and the polyethylene foam F-) and o
, a cuff with a thickness of 6 osw and a steel plate were similarly combined.
When the layered composite building material was prepared and subjected to the above-mentioned fire protection material test, the surface test showed that td # = 0, Cum = 4.8, and 69. The temperature difference in the base material test was 27°C, passing the test as a noncombustible material. In addition, this composite building material is a combination of closed cell insulation material and open cell insulation material, and has an excellent effect on preventing condensation on hakama.
The sheet-like material made by this product, which serves as the surface material, absorbs water appropriately and prevents condensed water from dripping, and the polyethylene 7-ohm sheet in the middle layer does not contain water even if it bleeds during condensation, and does not cause a decrease in thermal conductivity. It has a structure.

Example 5 *1 A rock wool sheet made in the same manner as in Example 1 with a thickness of 5 layers and 10 layers and an apparent density of 0.159/d was formed into a sheet of 40a x 40α with a thickness of 0.15cm using a chloroprene adhesive. C) of the composite plate laminated on one side of a 4 ml cuff-stainless steel plate and hung vertically with a thread is a composite plate of the Rockwoo A/type sheet with a thickness of 10 mm according to the present invention, d
) is a sound pressure waveform diagram in a case where an asbestos mat having a thickness of 5 shoes is composited and is in good condition as a comparative example.

Patent applicant Riwoshi Co., Ltd. Daigaki person Benba Jubon Ta dust

Claims (1)

[Claims] 1) In a sheet-like article in which inorganic molluscum is bonded with an organic binder, the distribution of the organic binder in the thickness direction is expressed by the following formulas (1)%, (2), (5), and (4). A sheet-like material with excellent flexibility and fire retardant properties that is within the specified range. 4 ≦Xi ≦25 (su2≦Xj≦20 (2)!s / 4≦
Xj≦X * (3) 4≦X≦20
(4) (However, i = 1 or 'w*, j = 2.3,... 1 & is n-1, lb D , Xl, "", Kn layer (5
≦m(10) Indicates the amount of organic binder (weight S) in the test piece cut parallel to the K plane, weight S). ) 2) Equation (1) satisfies 5≦Xi≦20. (s)
Yes. Make sure that equation (2) is 5≦Xj≦1s (4). The sheet-like article according to claim m1(1)K, wherein the formula (4) is S≦X≦1s (7). The sheet-like article according to claim (1), which is a sheet-like article. The sheet-like article according to claim (1), which is a sheet-like article. 5) The inorganic fiber is asbestos, rock wool, glass fiber,
Claim (1) which is any one of Cefmix fiber, 7 μmina fiber or longitudinal cord fiber or a mixture thereof;
The sheet-like article according to (3) or (4). 6) In place of a part of the inorganic fibers, organic fibers having an IF-circular cross-sectional shape are used in a weight range of O to 20% (vs. non-woody fibers M), Claims (1), ( 3), (4
) or the sheet-like material described in (5). 7) The organic binder company's water-soluble polymer or Emma μ
A sheet-like article according to claims (1), (3), (4), (5) and Fi (4), which is formed from a di-coat or fudex-like resin. 8) A sheet-like article according to claim (1), (3), (4), (!0° (6) or (7), in which 50 parts by weight of O of the organic binder is a crosslinking agent. 9) Claims (1), (3), (4), in which an inorganic binder is used in addition to the organic binder in an amount of about 50% by weight (compared to the organic binder).
The sheet-like article according to (5), (6), (7) or (8). 10) The inorganic binder is a silicate compound, a phosphate compound, a phosphoric acid compound, an amorphous hydroxide,
The sheet-like material according to claim (y), which is gypsum, cement, or a silicate/sium compound. 11) Claims (1) and (5) in which a sheet-like reinforcing material is compositely integrated inside or on the surface of the sheet-like product.
), (4), (5), (6), (7), (8),
(9) or the sheet-like article according to -. 12) The sheet-like material according to claim 01), wherein the sheet-like reinforcing material is a breathable material made of cloth, paper, cheesecloth, nonwoven fabric, or net. 15) The sheet-like article according to claim 01), wherein the sheet-like reinforcing material is made of a non-air permeable material such as a film or metal foil.