KR20190139116A - A semi-inflammable insulation material and manufacturing method for it - Google Patents

Abstract

The present invention relates to a semi-inflammable insulation material and a manufacturing method thereof. In particular, the present invention relates to a semi-inflammable insulation material which has excellent flame retardancy, can significantly reduce the generation of harmful gases in case of fire, has excellent thermal insulation, is easy to install an insulating material at light weight, has excellent waterproofing, excellent strength and durability, and a method of manufacturing a semi-inflammable insulation material with high productivity. The semi-inflammable insulation material includes an insulation layer, an adhesive layer, and an adhesive target layer.

Description

Semi-inflammable insulation material and manufacturing method for it

The present invention relates to a semi-combustible insulating material and a method for manufacturing the same, in particular, excellent flame retardancy, can significantly reduce the generation of harmful gases in the event of a fire, excellent thermal insulation, easy to install the insulation at light weight, excellent waterproofing The present invention relates to a semi-non-combustible heat insulating material having excellent strength and at the same time excellent durability and a method of manufacturing a semi-non-combustible heat insulating material capable of producing high productivity thereof.

The contents described below merely provide background information related to the present invention and do not constitute a prior art.

The indoor space is heated in winter, the summer air conditioning using the air conditioner is performed, and the increase in the cooling and heating efficiency of the indoor space can be obtained through the heat insulation, heat insulation construction using a variety of heat insulating materials are made.

In particular, many casualties and property damages have occurred due to the recent large fire accidents.In the case of this fire accident, the outer wall of the building is constructed with the insulation, adhesive mortar, and finish without flame retardant and non-flammable performance. The rate of fire spread was high, which caused the damage to be increased.

In response, the government revised the 'Rules for Evacuation / Fire Protection Structures of Buildings', which greatly strengthened the fire safety standards for building finishing materials, and has been in effect since April 2016.

Representative examples of the heat insulating material used in the conventional heat insulation construction, styrofoam, foamed polyurethane, foamed polyethylene is the main species. Among them, the polyurethane series has the most excellent thermal conductivity properties and is used a lot. However, in the case of foamed polyurethane, which is widely used as a heat insulating material, there are many problems in use due to the high flammability during the fire and the generation of a large amount of toxic gas in the early stage of the fire.

Although phenolic foam insulation has been developed to provide excellent insulation in the past, the strength of the phenolic foam insulation is relatively weak, there is a limit to use alone in the field because it is not easy to process.

In addition, the Republic of Korea Patent No. 1177383 discloses a step of forming a non-flammable material on the front surface of the heat insulating material, and a method of manufacturing a fire-resistant composite material to form aluminum foil on the front surface of the non-flammable material and the back surface of the heat insulating material. However, the method has a problem that the manufacturing process of the refractory composite material is too complicated, and the aluminum foil is easily torn and damaged, so that the installation and maintenance of the insulation is difficult, so there is an urgent need for improvement.

Korean Patent No.1177383

The present invention has been devised to solve the problems of the prior art as described above is excellent in flame retardancy, can significantly reduce the generation of harmful gases in the event of fire, excellent heat insulation, easy to install the heat insulating material, waterproof, waterproof An object of the present invention is to provide a semi-non-combustible insulation and a method of manufacturing the same, which is excellent in strength and excellent in durability.

The present invention to solve this problem

As a non-combustible heat insulating material containing a heat insulating material layer and an adherend layer,

(a) an insulation layer;

(b) an adhesive layer formed on the surface of the heat insulating material layer;

(c) an adherend layer formed on the surface of the adhesive layer,

The adherend layer provides a semi-non-combustible insulation that is dried by immersing the nonwoven fabric in a water glass coating solution.

(B) the water glass coating liquid may include (1) 0.1 to 20 parts by weight of aluminum powder, and (2) 0.01 to 10 parts by weight of a silane compound containing an amine group based on 100 parts by weight of the water glass; (3) 0.01 to 10 parts by weight of a silane compound containing a glycidyl group; And (4) 0.01 to 10 parts by weight of a tetraalkoxy silane compound.

(1) Silane compound containing an amine group: (2) Silane compound containing a glycidyl group: (3) The tetraalkoxy silane compound is bonded at a molar ratio of 1-5: 1-5: 1-5. good.

It is preferable that the said (b) adhesive bond layer contains polysilsesquioxane resin.

In addition, the present invention provides a method for producing a semi-non-combustible insulation,

S1) preparing a heat insulation layer;

S2) forming an adhesive layer on the surface of the heat insulating material layer;

S3) cutting the nonwoven fabric to the size of the heat insulating material, immersed in a water glass coating solution, and then taken out and dried to prepare an adherend layer; And

S4) bonding the adherend layer to the surface of the adhesive layer;

It provides a method for producing a semi-non-combustible heat insulating material comprising a.

The water glass coating liquid may include (1) 0.1 to 20 parts by weight of aluminum powder, and (2) 0.01 to 10 parts by weight of a silane compound containing an amine group based on 100 parts by weight of the water glass; (3) 0.01 to 10 parts by weight of a silane compound containing a glycidyl group; And (4) 0.01 to 10 parts by weight of a tetraalkoxy silane compound.

It is preferable that the adhesive layer contains a polysilsesquioxane resin.

According to the present invention, excellent flame retardancy, can significantly reduce the generation of harmful gases in the event of fire, excellent heat insulation, light weight, easy to install the insulation, excellent waterproof, excellent strength, and at the same time excellent durability A non-combustible insulation can be provided.

Figure 1 shows a cross-sectional schematic diagram of the semi-non-combustible insulation according to an embodiment of the present invention.
Figure 2 shows a schematic cross-sectional view of a semi-non-combustible insulation according to another embodiment of the present invention.
Figure 3 shows a schematic diagram of a method for manufacturing a semi-non-combustible insulation according to an embodiment of the present invention.
Figure 4 shows a schematic diagram of a method for manufacturing a semi-non-combustible insulation according to another embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

Figure 1 shows a cross-sectional schematic diagram of a semi-non-flammable heat insulating material according to an embodiment of the present invention, Figure 2 shows a cross-sectional schematic diagram of a semi-non-flammable heat insulating material according to another embodiment of the present invention, Figure 3 is an embodiment of the present invention 4 shows a schematic view of a method of manufacturing a semi-non-combustible insulation according to an embodiment, and FIG. 4 shows a schematic view of a method of manufacturing a semi-non-combustible insulation according to another embodiment of the present invention.

The semi-non-combustible heat insulating material 100 of the present invention is a semi-non-combustible heat insulating material 100 including the heat insulating material layer 10 and the adherend layer 30,

(a) insulation layer 10; (b) an adhesive layer 20 formed on the surface of the heat insulating material layer 10; (c) an adherend layer 30 formed on the surface of the adhesive layer 20,

The adherend layer 30 is characterized in that the nonwoven fabric is immersed in a water glass coating liquid and dried.

Semi-non-combustible insulation 100 of the present invention

S1) preparing a heat insulating material layer 10;

S2) forming an adhesive layer 20 on the surface of the heat insulating material layer 10;

S3) preparing the adherend layer 30 by cutting the nonwoven fabric to the size of the heat insulating material and immersing it in a water glass coating solution and then taking it out and drying; And

S4) bonding the adherend layer 30 to the surface of the adhesive layer 20;

It may be prepared to include.

In the present invention, the heat insulator used as the heat insulator layer 10 of step S1) may be a well-known heat insulator, and specific examples include foamed urethane, foamed polyurea, urethane foam, foamed polyisocyanurate (polyisocyanurate), foamed polystyrene , Bead method foamed styrene, extrusion method foamed styrene, foamed styrofoam, foamed ethylene, foamed propylene may be selected from one or two or more selected from.

In the present invention, the adhesive used in the adhesive layer 20 of the step S2) may be a known adhesive used for a heat insulating material, and specific examples thereof include acrylic resin adhesives, acrylic resin adhesives, urethane acrylates and epoxy acrylates. It can be used 1 type or in mixture of 2 or more types of adhesives, urea resin adhesives, and polysilsesquioxane resins.

Preferably, the adhesive layer 21 preferably contains at least 50 wt% of the polysilsesquioxane resin, more preferably 60 to 90 wt%. In particular, the polysilsesquioxane resin is (1) a silane compound containing an amine group: (2) a silane compound containing a glycidyl group: (3) a tetraalkoxy silane compound is 1-5: 1-5: 1-5 It is good that it is polysilsesquioxane resin couple | bonded with the molar ratio of. In this case, the adhesion between the insulation layer 10 and the adherend layer 30 is excellent at the same time, excellent flame retardancy, can significantly reduce the generation of harmful gases in the event of a fire, excellent heat insulation, excellent durability, strength Excellent and at the same time can have the advantage of excellent waterproof.

The amount of the adhesive is not particularly limited as long as the adhesive can be firmly adhered to the insulating material and the adherend. For example, the adhesive may be formed in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the insulating material layer 10. have.

In addition, the adhesive layer 21 further includes at least one material selected from the group consisting of graphite, graphene, carbon nanotubes, fullerene, expandable graphite, aluminum oxide hydrate, antimony trioxide, arsenic oxide, ammonium polyphosphate, and calcium sulfate. It may include. Each of the above materials may be independently included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the adhesive, in which case the flame retardancy of the adhesive layer may be enhanced.

The preparation of the adherend layer 30 of the present invention is prepared by cutting the nonwoven fabric to the size of the heat insulating material, immersed in a water glass coating solution and then taken out to dry.

The nonwoven fabric may be a known nonwoven fabric used for a heat insulating material. Specifically, a nonwoven fabric of paper, polypropylene, polyimide, or PET may be used, and a fire resistant fiber may be used, but is not limited thereto.

The thickness of the nonwoven fabric may be arbitrarily adjusted, and specific examples may be used having a thickness of 1 to 7 mm.

In the present invention, the water glass coating liquid is (1) 0.1 to 20 parts by weight of aluminum powder, (2) 0.01 to 10 parts by weight of a silane compound containing an amine group based on 100 parts by weight of water glass; (3) 0.01 to 10 parts by weight of a silane compound containing a glycidyl group; And (4) 0.01 to 10 parts by weight of a tetraalkoxy silane compound. Preferably, the water glass may use a water resistant water glass.

The aluminum powder (1) may be an aluminum powder having a long axis of 1 to 30 um in length. The content of the aluminum powder may be included in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of water glass. When the aluminum powder is in the above range, the mechanical strength of the adherend layer 30 may be improved, and water resistance may be simultaneously satisfied.

Specific examples of the silane compound containing the amine group include N-2-aminomethyl-3-aminopropyltriethoxysilane, aminopropyltrialkoxysilane, and N-2-aminoethyl-3-aminopropyltrimethoxysilane. And N-2-aminomethyl-3-aminopropyltrimethoxysilane. The content of the silane compound containing the amine group may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the water glass, and in the above range, while preventing the aluminum powder from being separated from the adherend layer 30, the adherend layer 30 ) Can have excellent adhesion and water resistance at the same time.

The silane compound containing the glycidyl group (3) may specifically be 3-glycidoxypropyltrimethoxysilane or 3-glycidoxypropyltriethoxysilane alone or in combination. The content of the silane compound including the glycidyl group may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the water glass, and in the above range, preventing the aluminum powder from being separated from the adherend layer 30, and the adherend layer (30) can be made to have the outstanding adhesiveness and water resistance simultaneously.

Specifically, (4) the tetraalkoxy silane compound may be used a tetraalkoxy silane compound having each alkoxy group independently having 1 to 5 carbon atoms, specific examples may be tetraethoxysilane (TEOS). The tetraalkoxy silane compound may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the water glass, and in the above range, the adherend layer 30 may be prevented while preventing the aluminum powder from being separated from the adherend layer 30. It is possible to have excellent adhesion and water resistance at the same time.

Preferably, (2) the silane compound containing the amine group: (3) the silane compound containing the glycidyl group: (4) the tetraalkoxy silane compound (TEOS) is 1-5: 1-5: 1-5 moles It is better to mix in proportions. In this case, (2) a silane compound containing an amine group: (3) a silane compound containing a glycidyl group: (4) a polysilsesquioxane resin copolymer formed through a bond of a tetraalkoxy silane compound (TEOS) Aluminum powder is strongly bonded to the adherend layer 30, excellent flame retardancy of the adherend layer 30, can significantly reduce the generation of harmful gases in the event of a fire, excellent thermal insulation, excellent durability, excellent strength At the same time, it is possible to manufacture a semi-non-combustible insulation excellent in waterproof.

In addition, the water glass coating solution may further include at least one material selected from the group consisting of graphite, graphene, carbon nanotubes, fullerene, expandable graphite, aluminum oxide hydrate, antimony trioxide, arsenic oxide, ammonium polyphosphate, and calcium sulfate. have. Each of the above materials may be independently included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of water glass, and in this case, the flame retardancy of the adherend layer 30 may be enhanced.

In the present invention, the drying method is not particularly limited, and may be press-dried under a pressure condition of 50 to 250 ° C. and 0.5 to 4.5 kgf / cm 2.

In the present invention, the adherend layer 30 is immersed in the water glass coating solution, and then taken out and dried, so that the water glass coating solution is evenly infiltrated and dried on the entire nonwoven fabric, and the entire adherend layer 30 is even and has excellent flame retardancy. The generation of harmful gases can be significantly reduced, has excellent thermal insulation, excellent durability, excellent strength and at the same time excellent waterproof.

In the present invention, the final quasi-non-combustible heat insulating material 100 is completed by combining the adherend layer 30 to the surfaces of the adhesive layers 20 and 21.

The semi-combustible insulation 100 according to the present invention is excellent in flame retardancy, including the adherend layer 30 using the water glass coating liquid which is a non-combustible material, can significantly reduce the generation of harmful gases in the event of a fire, excellent insulation, light weight It is possible to provide a quasi-non-combustible insulation that is easy to install, excellent in durability, excellent in strength and waterproof at the same time. Preferably, when the adhesive layer 21 includes a polysilsesquioxane resin, the adhesive strength between the copolymer included in the adherend layer 30 may be further improved, and thus, the adhesive layer 21 may have better adhesion to the adherend layer 30. Can be.

In particular, the semi-non-combustible heat insulating material (Example 1) of FIG. 1 prepared according to the schematic diagram of FIG. 3, the semi-non-combustible heat insulating material (Example 2) of FIG. 2 prepared according to the schematic diagram of FIG. 4, the graphite in the water glass coating liquid in Example 1 In the non-combustible heat insulating material (Example 3) prepared by further containing 1% by weight, and the semi-non-combustible heat insulating material (Example 4) prepared by further comprising 1% by weight of graphite in the adhesive layer and the water glass coating solution in Example 2, respectively. The flame retardant properties were measured and shown in Table 1 below. In the case of satisfying the semi-non-combustible level 2, '○' was indicated, and in the case of non-compliance level 2, '×' was indicated.

-Gas hazard test: test method KS F 2271

-Heat release rate test: test method KS F ISO 5660-1

division Example 1 Example 2 Example 3 Example 4 Gas hazard test ○ ○ ○ ○ Heat release rate test ○ ○ ○ ○

As shown in Table 1, all of the embodiments of the present invention exhibited flame retardant properties of quasi-non-combustible class 2.

In addition, although not shown in Table 1, in the case of Examples 2 and 4, the amount of gas generated was less than that of Example 1, and thus, it was confirmed to have more excellent flame retardant characteristics, and the adhesive strength of the adherend layer was more excellent. It was.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

Claims (11)

As a non-combustible heat insulating material containing a heat insulating material layer and an adherend layer,
(a) an insulation layer;
(b) an adhesive layer formed on the surface of the heat insulating material layer;
(c) an adherend layer formed on the surface of the adhesive layer,
The adherend layer is a semi-non-combustible insulation that is dried by immersing the nonwoven fabric in a water glass coating solution. The method of claim 1,
(B) the water glass coating liquid may include (1) 0.1 to 20 parts by weight of aluminum powder, and (2) 0.01 to 10 parts by weight of a silane compound containing an amine group based on 100 parts by weight of the water glass; (3) 0.01 to 10 parts by weight of a silane compound containing a glycidyl group; And (4) 0.01 to 10 parts by weight of a tetraalkoxy silane compound. The method of claim 2,
(1) Silane compound containing an amine group: (2) Silane compound containing a glycidyl group: (3) The tetraalkoxy silane compound is bonded at a molar ratio of 1-5: 1-5: 1-5. Semi-non-flammable insulation characterized in that. The method of claim 1,
Said (b) adhesive layer is a semi-non-combustible heat insulating material, characterized in that it comprises a polysilsesquioxane resin. The method of claim 1,
The adhesive layer independently comprises at least one material selected from the group consisting of graphite, graphene, carbon nanotubes, fullerene, expandable graphite, aluminum oxide hydrate, antimony trioxide, arsenic oxide, ammonium polyphosphate, and calcium sulfate. Semi-combustible insulation, characterized in that it further comprises in an amount of 0.1 to 10 parts by weight relative to parts by weight. The method of claim 2,
The water glass coating solution may independently contain at least one material selected from the group consisting of graphite, graphene, carbon nanotubes, fullerene, expandable graphite, aluminum oxide hydrate, antimony trioxide, arsenic oxide, ammonium polyphosphate, and calcium sulfate. Semi-combustible insulation, characterized in that it further comprises in an amount of 0.1 to 10 parts by weight relative to parts by weight. In the manufacturing method of the semi-non-combustible insulation,
S1) preparing a heat insulation layer;
S2) forming an adhesive layer on the surface of the heat insulating material layer;
S3) cutting the nonwoven fabric to the size of the heat insulating material, immersed in a water glass coating solution, and then taken out to dry to prepare an adherend layer; And
S4) bonding the adherend layer to the surface of the adhesive layer;
Method for producing a semi-non-combustible heat insulating material comprising a. The method of claim 7, wherein
The water glass coating liquid may include (1) 0.1 to 20 parts by weight of aluminum powder, and (2) 0.01 to 10 parts by weight of a silane compound containing an amine group based on 100 parts by weight of the water glass; (3) 0.01 to 10 parts by weight of a silane compound containing a glycidyl group; And (4) 0.01 to 10 parts by weight of a tetraalkoxy silane compound. The method of claim 5,
The adhesive layer is a method for producing a semi-non-combustible heat insulating material comprising a polysilsesquioxane resin. The method of claim 7, wherein
The adhesive layer independently comprises at least one material selected from the group consisting of graphite, graphene, carbon nanotubes, fullerene, expandable graphite, aluminum oxide hydrate, antimony trioxide, arsenic oxide, ammonium polyphosphate, and calcium sulfate. Method for producing a semi-combustible insulation, characterized in that it further comprises in an amount of 0.1 to 10 parts by weight relative to parts by weight. The method of claim 8,
The water glass coating solution may independently contain at least one material selected from the group consisting of graphite, graphene, carbon nanotubes, fullerene, expandable graphite, aluminum oxide hydrate, antimony trioxide, arsenic oxide, ammonium polyphosphate, and calcium sulfate. Method for producing a semi-combustible insulation, characterized in that it further comprises in an amount of 0.1 to 10 parts by weight relative to parts by weight.

Images