JP2000129813A - Heat insulation sheet material and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the usability of a heat insulation sheet material by applying a resin compound containing inorganic hollow particles on a reinforcing base member. SOLUTION: A resin compound 1 containing inorganic hollow particles is applied on a reinforcing base material 2 of 1-60 wt.% in the content ratio to form a laminate body for this heat insulation sheet material. The applied thickness of the resin compound 1 is made uniform to have a substantial thickness of 0.3-50 mm by using a knife having a constant distance from a substrate plate to regulate the applied thickness. Since the inorganic hollow particles have a heat insulation property by itself and hence, when the particles are mixed with a resin component at a specified ratio, the heat insulation property is enhanced. Wide usability, heat-resistance property, and cost can be improved by using the reinforcing base material 2 composed of inorganic or organic fiber. In this way, it can be easily handled in a construction site. When stuck on architectural members, the heat insulation property and the reinforcing performance of the architectural member can be greatly improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a construction member
The present invention relates to a heat insulating sheet material that provides high heat insulating performance and reinforcing performance, and a method for manufacturing the same.

[0002]

2. Description of the Related Art In the Building Standards Law, there are regulations on site area and construction area as fire prevention and fire fighting measures. In accordance with these regulations, in order to enhance the heat insulation performance of building components, paints having fire resistance are required. And a method of applying it to the material.
An example of such a paint is a foamable fire-resistant paint that foams to generate a non-flammable gas by the generated heat to form a porous carbonized heat-insulating layer in order to delay the rise in temperature of the building material in the event of a fire. .

[0003] However, in a building member to which such a fire-resistant paint is directly applied, the fiber-reinforced plastic base material is excessively flamed before the coating layer made of the fire-resistant paint foams to form a carbonized heat insulating layer. The molded member was heated and damaged, and the mechanical strength of the molded member was greatly reduced, and the shape could not be maintained.

[0004] In addition, the method of applying a fire-resistant paint as described above has a problem that the work process becomes complicated when construction is performed on site.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a highly convenient heat insulating sheet material which is attached to a surface of a building member or the like to impart high heat insulating performance and reinforcing performance to the member.
It is to provide a manufacturing method thereof.

[0006]

Means for Solving the Problems The heat insulating sheet material of the present invention provides the following (1) or (2)
It has a configuration of

(1) A heat insulating sheet material in which a resin composition containing inorganic hollow particles is applied to a reinforcing substrate.

(2) A heat insulating sheet material comprising a resin composition containing inorganic hollow particles and short fibers, wherein the short fibers have a fiber length of 1 to 200 mm.

The method for producing a heat insulating sheet material of the present invention has any one of the following constitutions (3) to (5).

(3) A resin composition containing inorganic hollow particles is applied to a reinforcing base material to form a laminate. The laminate is moved, and the resin is moved by a coating thickness regulating knife having a constant distance from an underlying plate. A method for producing a heat insulating sheet material in which the applied thickness of the composition is substantially uniform.

(4) A resin composition containing inorganic hollow particles and short fibers is applied to a release sheet, the release sheet is moved, and the resin composition is controlled by a coating thickness regulating knife having a constant distance from an underlying plate. A method for producing a heat insulating sheet material in which the coating thickness of the heat insulating sheet material is substantially uniform.

(5) The reinforcing base material is moved, and the measuring roller and the transfer roller rotating in a direction opposite to the measuring roller are used to move the reinforcing base material.
A method for producing a heat insulating sheet material in which a resin composition is transferred and applied to a reinforcing substrate.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The present inventors have intensively studied a heat insulating sheet material having excellent heat insulating performance and reinforcing performance, and providing high heat insulating performance to building members with good convenience at the time of construction at a construction site or the like. Then, a heat insulating sheet material comprising a resin composition containing inorganic hollow particles as a constituent was found. In particular, the heat insulating sheet material of the present invention is a fiber reinforced plastic material (hereinafter referred to as F
Since it has a great effect of blocking the heat applied to the RP material, it can be suitably used to impart heat insulation performance to building members, ships, vehicles, and aircraft components using the FRP material. Hereinafter, the heat insulating sheet material of the present invention and the manufacturing method thereof will be described.

The heat insulating sheet material of the present invention is a heat insulating sheet material obtained by applying a resin composition containing inorganic hollow particles to a reinforcing substrate and curing the resin composition.

The reinforcing substrate is preferably made of inorganic or organic fibers from the viewpoints of flexibility and moldability. As inorganic fibers, glass fibers, tyrano fibers, carbon fibers,
Examples thereof include silicon carbide fibers, silicon nitride fibers, boron fibers, alumina fibers, and mineral fibers. In addition, examples of the organic fibers include acrylic fibers, aramid fibers, rayon fibers, vinyl fibers, and fluorine fibers. These fibers can be used alone or in combination in consideration of price and performance. Among them, glass fiber is excellent in versatility, heat resistance and cost, and can be preferably used.

The form of the reinforcing substrate may be woven, knitted,
It is at least one selected from the group consisting of a braid and a nonwoven fabric. The woven fabric is preferably a long fiber or short fiber woven fabric (plain weave, unidirectional weave). Among them, long-fiber woven fabrics are preferred from the viewpoint of dimensional stability. These forms can be used alone or in combination in consideration of cost and performance.

The reinforcing base material in the present invention is not limited to the above, but may be a woven or knitted fabric such as metal, rubber, or plastic.
A braid, a net, a plate, a film, and the like can also be suitably used. Above all, a plastic woven fabric is light in weight and has good dimensional stability of the heat insulating sheet material, so that it can be suitably used.

The coating thickness of the resin composition is 0.3 to 50 mm
And preferably 1 to 10 mm. 0.3mm thickness
When it is less than the above, the heat insulating effect becomes small. On the other hand, if it exceeds 50 mm, the heat insulating effect becomes large, but the weight of the heat insulating sheet material becomes excessive.

The weight content Wf of the reinforcing base material (see the formula described later) is preferably 1 to 60% by weight, more preferably 1 to 20% by weight.
% By weight is good. If the amount is less than 1% by weight, the shape retention and dimensional stability of the heat insulating sheet material deteriorate. When the content exceeds 60% by weight, the content of the resin component and the inorganic hollow particles in the heat insulating sheet material becomes small, and the heat insulating performance decreases.

The heat-insulating sheet material of the present invention is a heat-insulating sheet material comprising a resin composition containing inorganic hollow particles and short fibers as components.

The inorganic hollow particles have heat insulating performance by themselves, and are made of natural stone hollow particles and / or artificial stone hollow particles. Specific examples of natural stone hollow particles include shirasu balloons formed by heating and sintering the vitreous matter contained in volcanic products (shirasu) such as perlite hollow particles and obsidian hollow particles, and diatomaceous earth existing on the seabed and lake bottom. And the like. Above all, obsidian hollow particles and diatomaceous earth hollow particles having a spherical shape are preferably used because of their good heat insulating performance. Further, specific examples of the artificial stone hollow particles include hollow particles such as ceramics and glass. Above all, hollow particles of glass can be preferably used because they are inexpensive and have good heat insulating performance. These natural stone hollow particles and artificial stone hollow particles can be used alone, or both can be used as a mixture.However, in order to ensure uniform dispersibility in the resin composition, the natural stone hollow particles are used alone. Use is preferred.

The number of the inorganic hollow particles mixed into the resin component is 5 to 5 parts by weight per 100 parts by weight of the resin component.
200 parts by weight is good. The number of such components is preferably 5
The amount is preferably from 100 to 100 parts by weight, more preferably from 10 to 80 parts by weight, even more preferably from 15 to 60 parts by weight.
If the amount is less than 5 parts by weight, the heat transfer coefficient of the resin composition increases, and the heat insulating effect of the heat insulating sheet material decreases. If the amount exceeds 200 parts by weight, the heat insulating effect of the heat insulating sheet material is unnecessarily enhanced, the cost of the particles used increases, and the weight of the heat insulating sheet material becomes excessive. Also,
The inorganic hollow particles present on the surface layer of the heat insulating sheet material become uneven and emerge as if raised, which impairs the aesthetic appearance.

The inorganic hollow particles preferably have an average particle diameter of 6 μm to 5 mm, preferably 10 μm to 3 mm.
More preferably, it is 30 μm to 2 mm, further preferably 70 μm to 2 mm.
Those having a size of μm to 1 mm are good. When the average particle size is less than 6 μm, it is difficult to uniformly pulverize the particles, and it is also difficult to uniformly foam the particles. Further, the porosity per unit volume of the heat insulating sheet material may decrease, the heat transfer coefficient may increase, and the heat insulating effect may decrease. On the other hand, if it exceeds 5 mm, the particles are easily broken, and it is difficult to apply the particles uniformly on the surface of the reinforcing substrate.

The inorganic hollow particles in the present invention are usually
In the thermal conductivity measurement method described later, the thermal conductivity of a plate-like material obtained by uniformly dispersing and mixing the particles and the epoxy resin (hereinafter, this value is referred to as the heat transfer coefficient of the particles) Is less than 1.0 kcal / m · h · ° C. Thermal conductivity is 1.0kcal
If it exceeds / m · h · ° C, the heat insulating effect of the heat insulating sheet material tends to be insufficient. Therefore, the smaller the thermal conductivity is, the better, preferably 0.6 kcal / m · h · ° C. or less, more preferably 0.2 kcal / m · h · ° C. or less, further preferably 0.0 kcal / m · h · ° C. or less.
8kcal / m ・ h ・ ℃ or less is good.

The short fibers are inorganic or organic short fibers, and have the same effect as the reinforcing base material in the heat insulating sheet material, such as the effect of retaining the shape of the heat insulating sheet material and the effect of reinforcing the members. . The fiber length is preferably 1 to 200 mm, and more preferably 3 to 30 mm. If it is less than 1 mm,
The heat insulating sheet material is easily broken, and the operation at the time of manufacture becomes complicated. On the other hand, if it exceeds 200 mm, the fibers will become entangled when the resin composition is kneaded during the production.

The number of the short fibers is 100 parts.
1 to 60 parts by weight per part by weight is preferred, and preferably 1 to 2 parts by weight.
0 parts by weight is good. If the amount is less than 1 part by weight, the shape retention and dimensional stability of the heat insulating sheet material deteriorate. If the amount is more than 60 parts by weight, the fluidity of the resin composition will decrease, resulting in coating unevenness, reducing the uniformity of the sheet and decreasing the heat insulating performance.

As the resin component in the resin composition, a thermosetting resin is usually used. Specific examples of the thermosetting resin include an epoxy resin, a phenol resin, an unsaturated polyester resin, a urethane resin, and a melamine resin. Among them, phenol resins are inexpensive and excellent in flame retardancy, and are preferably used. In order to impart toughness to the resin composition, rubber particles or a thermoplastic resin may be included in the resin composition. When the environment is not a wet environment, inorganic water glass can be substituted for the resin component.

The thickness of the heat insulating sheet material is 0.3 to 5
0 mm is good, and preferably 1 to 10 mm. The thickness is 0.
When it is less than 3 mm, the heat insulating effect is reduced. Also, 50
If it exceeds mm, the heat insulating effect becomes large, but the weight of the heat insulating sheet material becomes excessive.

[0029] At least one surface of the heat insulating sheet material of the present invention may be covered with a release sheet. Further, an adhesive may be applied between the release sheet and the heat insulating sheet material main body.

Specific examples of the release sheet include paper,
Cloth, woven fabric, knitting, metal plate, plastic plate and the like can be mentioned. Among them, inexpensive and easily handled paper is preferable. Further, a release agent may be applied to the surface of the release sheet. Specific examples of the release agent include silicone-based release agents,
Examples include wax-based and fluorine-based release agents. Among them,
Silicone release agents which are inexpensive and have excellent release performance are preferred.

The heat-insulating sheet material to which the pressure-sensitive adhesive has been applied can be used by attaching it to a formwork at the time of manufacturing a building member, or can be used by attaching it to the surface of a building member in on-site construction such as a construction site. Specific examples of the adhesive include an epoxy resin-based and an epoxy phenol resin-based adhesive. As a general commercial product, the former is a product number 110 manufactured by Cemedine Co., Ltd., and the latter is a product of Taoka Chemical Industry Co., Ltd.
Technodyne®, product number HT-12.

The heat insulating sheet material of the present invention comprises a ceiling material, a wall material,
It can be suitably applied to impart high heat insulation performance to at least one type of building member selected from the group consisting of floor materials, columns, roof materials, beams, eaves, and doors. Among them, the heat insulating sheet material of the present invention has, light weight, high elastic modulus, does not rust,
It can be more suitably used as a ceiling material, a roof material, a wall material, or a floor material that can exhibit various characteristics such as shape stability, dimensional stability, and moldability. Further, the heat insulating sheet material of the present invention can be used for structural members of ships, vehicle structures, aircrafts, and the like.

Further, the width of the heat insulating sheet material of the present invention can be appropriately set according to the construction method, application, and the like.
It is 200 cm.

The heat insulating sheet material of the present invention has the following (1)
Alternatively, the method (2) (hereinafter abbreviated as a knife coating method) can be manufactured as an example. The method for adjusting the resin composition and the type of the reinforcing substrate are the same as described above.

(1) A resin composition containing inorganic hollow particles is applied to a reinforcing substrate to form a laminate, and the laminate is moved, and the resin is adjusted by a coating thickness regulating knife having a constant distance from an underlying plate. A production method for making the coating thickness of the composition substantially uniform.

The underlay plate moves as a plate whose temperature can be controlled to control the viscosity of the resin, and as a plate which adjusts the distance between the resin composition controlling knife and the coating thickness regulating knife in order to make the coating thickness of the resin composition uniform. It is installed and used at the bottom of the laminate.

The material of the knife for controlling the coating thickness is as follows.
Examples include metal, rubber, plastic, and timber. Among them, metal is preferable because of its excellent adjustment accuracy and durability.

The coating thickness of the resin composition is 0.3 to 50 mm
And preferably 1 to 10 mm. 0.3mm thickness
When it is less than the above, the heat insulating effect becomes small. On the other hand, if it exceeds 50 mm, the heat insulating effect becomes large, but the weight of the heat insulating sheet material becomes excessive.

Further, a dryer may be provided for curing the resin composition. The set temperature of the dryer is 50 ~ 2
The temperature is preferably 50 ° C, more preferably 80 to 130 ° C. 50
If the temperature is lower than ℃, it takes a long time to cure, the productivity is reduced and the production cost is increased. If the temperature exceeds 250 ° C., heating of the resin composition becomes excessive, the resin component undergoes thermal decomposition, and the dimensional stability and heat insulating performance of the heat insulating sheet material decrease.

Further, the entire reinforcing substrate may be impregnated with the resin composition, or a part thereof may be impregnated. The former is
It is preferable from the viewpoint of dimensional stability of the heat insulating sheet material.

(2) A resin composition containing inorganic hollow particles and short fibers is applied to a release sheet, the release sheet is moved, and the resin composition is controlled by a coating thickness regulating knife having a constant distance from an underlying plate. A method for producing a substantially uniform coating thickness.

Specific examples of the release sheet include paper, cloth, woven fabric, knitted fabric, metal plate, plastic plate and the like. Among them, inexpensive and easily handled paper is preferable.
Further, a release agent may be applied to the surface of the release sheet. Specific examples of the release agent include silicone-based, wax-based, and fluorine-based release agents. Among them, silicone-based release agents which are inexpensive and have excellent release performance are preferred.

The underlay plate is used as a plate whose temperature can be controlled to control the viscosity of the resin, and as a plate for adjusting the distance from the coating thickness regulating knife in order to make the coating thickness of the resin composition substantially uniform. It is installed and used under the moving release sheet.

As the material of the knife for controlling the coating thickness,
Examples include metal, rubber, plastic, and timber. Among them, metal is preferable because of its excellent adjustment accuracy and durability.

The coating thickness of the resin composition is 0.3 to 50 mm
And preferably 1 to 10 mm. 0.3mm thickness
When it is less than the above, the heat insulating effect becomes small. On the other hand, if it exceeds 50 mm, the heat insulating effect becomes large, but the weight of the heat insulating sheet material becomes excessive.

Further, a dryer may be provided for curing the resin composition. The set temperature of the dryer is 50 ~ 2
The temperature is preferably 50 ° C, more preferably 80 to 130 ° C. 50
If the temperature is lower than ℃, it takes a long time to cure, the productivity is reduced and the production cost is increased. When the temperature exceeds 250 ° C., the heating of the resin composition becomes excessive, the resin component undergoes thermal decomposition, and the dimensional stability and the heat insulating performance of the heat insulating sheet material decrease.

Further, the heat insulating sheet material of the present invention can also be manufactured by the following method (3) (hereinafter abbreviated as roller coating method). Incidentally, the method of adjusting the resin composition,
The type of the reinforcing substrate is as described above.

(3) The reinforcing base material is moved, and the measuring roller and the transfer roller rotating in the opposite direction to the measuring roller are used.
A method for transferring and applying a resin composition to a reinforcing substrate.

The measuring roller measures the resin composition and transfers the resin composition to a transfer roller provided at a predetermined distance from the resin composition. Here, the two rollers rotate in opposite directions to improve the measurement and transfer accuracy of the resin.
If the rotation is in the same direction, it becomes difficult to supply the resin to the transfer roller constantly. The transfer roller contacts the reinforcing base material and rotates in a direction opposite to the direction in which the reinforcing base material moves, at a peripheral speed equal to the moving speed of the reinforcing base material, thereby substantially uniformly dispersing the resin composition. It is applied in thickness.

The coating thickness of the resin composition is 0.3 to 50 mm
And preferably 1 to 10 mm. 0.3mm thickness
When it is less than the above, the heat insulating effect becomes small. On the other hand, if it exceeds 50 mm, the heat insulating effect becomes large, but the weight of the heat insulating sheet material becomes excessive.

The measuring roller and the transfer roller may be made of metal, plastic, porcelain, or wood. However, the metal roller is excellent in durability, chemical resistance, surface smoothness and the like. preferable. Further, it is preferable that the surface of these rollers is coated with a fluororesin, because the releasability is imparted to the resin, the cleaning time can be reduced, and the maintenance cost can be reduced. Further, by providing the roller with a heater, the viscosity of the resin can be adjusted to improve the coating performance.

The method of using the heat insulating sheet material of the present invention includes a method of attaching to a member to be protected with an adhesive or the like.
When molding a member to be protected, there is a method of curing and integrating a molten resin. The latter method is preferred because the molten resin is cured and integrated, so that the molding cycle can be shortened and the production cost can be reduced.

The heat insulating sheet material of the present invention and the method for producing the same will be illustrated below with reference to the drawings.

FIG. 1 shows an example of the configuration of the heat insulating sheet material of the present invention. That is, the resin composition 1 containing the inorganic hollow particles is applied to the reinforcing base material 2 to form a laminate. FIG. 2 shows another configuration example of the heat insulating sheet material of the present invention, in which a resin composition 3 containing inorganic hollow particles and short fibers is in a sheet state.

FIG. 3 shows an example of a method for manufacturing a heat insulating sheet material according to the present invention. Release sheet 5 and reinforcing substrate 2
Is unwound while forming a laminate. Next, when the laminate passes over the underlying plate 8, the resin composition 1 stored between the plate 8 and the coating thickness regulating knife 4 is transferred and applied to the laminate. Next, the application thickness of the resin composition 1 is made substantially uniform by the application thickness regulating knife 4 and the underlying plate 8. Further, it is passed through a dryer 6 and wound up as a heat insulating sheet material 7.

FIG. 4 also shows an example of a method for producing the heat insulating sheet material of the present invention. When the release sheet 5 is unwound and passes over the underlying plate 8, the plate 8
And the resin composition 1 stored between the coating thickness control knife 4
Is transferred and applied. Next, the application thickness of the resin composition 1 is made substantially uniform by the application thickness regulating knife 4 and the underlying plate 8. Further, it is passed through a dryer 6 and wound up as a heat insulating sheet material 7.

FIG. 5 also shows an example of the method for producing the heat insulating sheet material of the present invention. The release sheet 5 and the reinforcing substrate 2 are unwound while forming a laminate. Next, the laminate is
When passing over the underlay plate 8, the resin composition stored between the two partition plates 11 by the measuring roller 9 and the transfer roller 10 rotating in the opposite direction to the measuring roller 9 is applied to the laminate. Transferred and applied. Next, it is passed through a dryer 6 and wound up as a heat insulating sheet material 7.

In the examples described later, each physical property value was measured by the following method.

(Particle Thermal Conductivity) The inorganic hollow particles were uniformly mixed and dispersed in a kneading machine in an amount of 20 parts by weight with respect to 100 parts by weight of the bulk epoxy resin, and the mixture was applied to a mold to form a plate material (A plate). ) Got. This and a plate-shaped material (B-plate) made of only the same resin containing no inorganic hollow particles were bonded to each other so as to have no gap to form a two-layer structure. Next, heating is performed at a distance of 10 cm from the B plate side with a 900 W heater, and the surface temperature T _o (° C.) of the B plate and the boundary temperature T ₁ (C 1) of the A plate and the B plate 5 minutes after the heating is started. ° C) and the surface temperature T ₂ (° C) of the A plate were measured with a thermocouple, and the values obtained were determined by the following equations.

Thermal conductivity λ (kcal / m · h · ° C.) = Λ ₀ × (L ₁ /
L _o ) × (T ₀ −T ₁ ) / (T ₁ −T ₂ ) where λ _o : thermal conductivity of B plate (= 15 kcal / m · h · ° C.), L
_o : The thickness (cm) of the B plate, and L ₁ : the thickness (cm) of the A plate.

(Average particle diameter) Measured by a screen sieve test method. A standard mesh sieve having a diameter of 150 to 200 mm and a depth of 60 mm and having a specified aperture is used (see JIS Z8801). First, put about 50g of the sample into a sieve,
The sieve was passed through the sieve while tapping the sieve at a frequency of 150 times per minute. At this time, sieve 1 every 25 taps
/ 6 revolutions.

Next, the same sample was again subjected to the above-described sieving operation using a standard mesh sieve having a coarse opening. The average particle diameter of the particles that passed through the sieve during this period was, for example, 0.1 mm (previous opening) to 0.5 mm (current opening).

{Weight Content of Reinforcement Substrate Wf (% by Weight)}
From the weight (g) of the reinforcing base material and the weight (g) of the resin composition, a weight fraction based on the entire heat insulating sheet material was determined by the following equation.

Wf = {weight of reinforcing substrate (g)} / {weight of reinforcing substrate (g) + weight of resin composition (g)} × 100

[0065]

The present invention will be described below in more detail with reference to examples. Tables 1 to 4 show the results of these examples. In each of the examples and comparative examples, all of the FRP
Wood was used. Since the phenolic resin of the FRP material contains water as a solvent and causes a steam explosion at a heating temperature of 200 ° C., the surface temperature of the FRP material is at least 150 ° C.
When the temperature was lower than or equal to ° C., the heat insulating effect was considered to be good.

Example 1 100 parts by weight of a phenolic resin (product number: BRL-240) manufactured by Showa Polymer Co., Ltd. were charged into a kneader, and then an acid-catalyzed curing agent manufactured by the company (product number: FRH-50) was blended and kneaded, and then 20 parts by weight of obsidian hollow particles having an average particle diameter of 0.1 to 0.5 mm and Perlite (registered trademark) manufactured by Nippon Cement Co., Ltd. were blended and kneaded. A composition was obtained. A woven sheet made of acrylic fiber is superimposed on a release paper coated with a silicone-based release agent as a reinforcing base material, and the resin composition is applied thereon with a coating thickness regulating knife to a thickness of 2 mm. It was applied uniformly. Further, with a hot air circulation type dryer, 10
After drying at 0 ° C. for 30 minutes, the weight content W of the reinforcing substrate
f was 2% by weight to obtain a heat insulating sheet material.

The obtained heat-insulating sheet material was placed in a 4 mm-thick F
A square specimen having a side of 300 mm and a thickness of 6 mm was obtained by sticking to an RP material.

The test piece was heated from the surface side of the heat insulating sheet material so that the surface temperature became a constant temperature of 400 ° C., and a heat insulating performance test was performed. Here, a high-capacity dryer capable of setting a temperature was used as a heating source. At this time, a thermocouple was attached to the center of the FRP material on the opposite side, and the surface temperature was measured. Five minutes after the start of heating, the surface temperature of the FRP material was 85 ° C. (hereinafter abbreviated as measurement temperature), and a good heat insulating effect was obtained. (Example 2) A resin composition was obtained in the same manner as in Example 1 except that short glass fibers (fiber length 6 mm) were additionally added as a resin composition element of Example 1. This resin composition,
The coating was uniformly applied to a release paper coated with a silicone release agent so as to have a thickness of 2 mm by a coating thickness regulating knife. Further, the resultant was subjected to a drying treatment at 100 ° C. for 30 minutes using a hot-air circulation dryer to remove the solvent, thereby obtaining a heat insulating sheet material. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 93 ° C., and a good heat insulating effect was obtained.

Example 3 Except that the obsidian hollow particles used were changed to those having an average particle diameter of 0.7 to 1.0 mm,
In the same manner as in Example 1, the weight content Wf of the reinforcing substrate was 1
A heat insulating sheet material of 0% by weight was obtained. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 98 ° C., and a good heat insulating effect was obtained.

Example 4 The procedure of Example 1 was repeated except that the number of obsidian hollow particles was changed to 50 parts by weight.
A heat insulating sheet material having a weight content Wf of the reinforcing base material of 2% by weight was obtained. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

A heat insulation performance test was performed on the test piece in the same manner as in Example 1. The measurement temperature was 81 ° C., and a good heat insulating effect was obtained.

(Example 5) The coating thickness of the resin composition was 10
A heat insulating sheet material having a weight content Wf of the reinforcing substrate of 2% by weight was obtained in the same manner as in Example 1 except that the thickness was changed to mm. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to the same heat insulation performance test as in Example 1. The measurement temperature was 72 ° C., and a good heat insulating effect was obtained.

(Example 6) Except that hollow particles of perlite were used instead of hollow particles of obsidian, the same procedure as in Example 1 was repeated.
A heat insulating sheet material having a weight content Wf of the reinforcing base material of 2% by weight was obtained. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 95 ° C., and a good heat insulating effect was obtained.

Example 7 The procedure of Example 1 was repeated, except that diatomaceous earth hollow particles were used instead of obsidian hollow particles.
A heat insulating sheet material having a weight content Wf of the reinforcing base material of 2% by weight was obtained. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

A heat insulation performance test was performed on the test piece in the same manner as in Example 1. The measurement temperature was 97 ° C., and a good heat insulating effect was obtained.

(Example 8) A heat insulating sheet material having a weight content Wf of a reinforcing base material of 2% by weight was obtained in the same manner as in Example 1 except that hollow ceramic particles were used instead of hollow obsidian particles. . From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 87 ° C., and a good heat insulating effect was obtained.

(Example 9) A specimen having the same shape as that of Example 1 was obtained by a roller coating method instead of the knife coating method.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 88 ° C., and a good heat insulating effect was obtained. (Example 10) On a release paper coated with a silicone-based release agent, an epoxyphenol resin-based adhesive, Technodyne (registered trademark) manufactured by Taoka Chemical Industry Co., Ltd., model number: HT
-12 is applied, and a woven sheet made of acrylic fiber is overlaid, and the same resin composition as in Example 1 is further placed thereon.
The coating was uniformly applied to a thickness of 2 mm using a coating thickness regulating knife. Further, it is dried at 100 ° C. for 30 minutes in a hot air circulation type dryer, and the weight content Wf of the reinforcing base material is 2
By weight, a heat insulating sheet was obtained. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 91 ° C., and a good heat insulating effect was obtained.

Comparative Example 1 A woven sheet made of acrylic fiber was superimposed on release paper coated with a silicone-based release agent, and an inorganic river sand (average particle diameter of 0.1 to
0.5 mm) was applied by a coating thickness regulating knife so as to have a thickness of 2 mm. Next, it was subjected to a drying treatment at 100 ° C. for 30 minutes in a hot air circulation type drier to obtain a heat insulating sheet material having a weight content Wf of the reinforcing base material of 2% by weight. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 357 ° C., and the heat insulation effect was poor.

Comparative Example 2 The procedure of Example 2 was repeated, except that the fiber length of the short glass fiber used was changed to 0.1 mm.
A specimen having the same shape as that of Example 2 was obtained. When attaching the heat insulating sheet material to the surface of the fiber reinforced plastic material, the heat insulating sheet material cracked.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 327 ° C., and the heat insulation effect was poor.

(Comparative Example 3) Using an FRP material having a thickness of 4 mm, a square specimen having a side of 300 mm and a thickness of 6 mm was obtained without applying the resin composition.

A heat insulation performance test was performed on the test piece in the same manner as in Example 1. The measurement temperature was 385 ° C., and the heat insulating effect was poor. Further, the FRP material exploded at a surface temperature of around 200 ° C., and delamination occurred.

Comparative Example 4 A heat insulating sheet material in which the weight content Wf of the reinforcing substrate was 2% by weight in the same manner as in Example 1 except that glass particles (non-hollow) were used instead of the obsidian hollow particles. I got From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

The test piece was subjected to a heat insulation performance test in the same manner as in Example 1. The measurement temperature was 311 ° C., and the heat insulating effect was poor.

(Comparative Example 5) The average particle diameter was 0.001 to
Except using 0.005mm obsidian particles (non-hollow)
In the same manner as in Example 1, the weight content Wf of the reinforcing base material was 2
By weight, a heat insulating sheet material was obtained. From the obtained heat insulating sheet material, a test body having the same shape as in Example 1 was obtained.

A heat insulation performance test was performed on the test piece in the same manner as in Example 1. The measurement temperature was 371 ° C., and the heat insulating effect was poor.

[0095]

[Table 1]

[Table 2]

[Table 3]

[Table 4]

[0096]

The heat insulating sheet material of the present invention is easy to handle in construction on site, and when attached to a building member or the like, the heat insulating performance and reinforcing performance of the member are greatly improved.

The above-mentioned heat insulating sheet material can be easily obtained by the method for producing a heat insulating sheet material of the present invention.

[Brief description of the drawings]

FIG. 1 is a sectional view of a heat insulating sheet material of Examples 1, 3 to 10.

FIG. 2 is a sectional view of a heat insulating sheet material according to a second embodiment.

FIG. 3 is a schematic view illustrating a method for manufacturing the heat insulating sheet material of Examples 1, 3 to 8, and 10.

FIG. 4 is a schematic view showing a method for manufacturing a heat insulating sheet material of Example 2.

FIG. 5 is a schematic view illustrating a method for manufacturing a heat insulating sheet material of Example 9.

[Explanation of symbols]

1: Resin composition 2: Reinforcement substrate 3: Insulating sheet material composed of resin composition containing inorganic hollow particles and short fibers 4: Coating thickness control knife 5: Release sheet 6: Dryer 7: Insulating sheet material (winding) 8) Underlay plate 9: Measuring roller 10: Transfer roller 11: Partition plate

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DD01 GA06 GA12 GA24 GA25 GA26 HB01 HB02 HD03 HD11 HD12 JA00 JA12 JA14 JA21 JA22 JA27 JA29 JB07 JD02 JD04 JD05 JD08 4F100 JJ02 JK01 JL05 YY00

Claims (15)

[Claims] 1. A heat insulating sheet material obtained by applying a resin composition containing inorganic hollow particles to a reinforcing base material. 2. The form of the reinforcing substrate is at least one selected from the group consisting of a woven fabric, a knitted fabric, a braid, and a nonwoven fabric.
The heat insulating sheet material according to claim 1, which is a seed. 3. The heat insulating sheet material according to claim 1, wherein the weight content Wf of the reinforcing base material relative to the whole heat insulating sheet material is 1 to 60% by weight. 4. The coating thickness of the resin composition is from 0.3 to 5
The heat insulating sheet material according to any one of claims 1 to 3, which is 0 mm. 5. A heat insulating sheet material comprising a resin composition containing inorganic hollow particles and short fibers, wherein the fiber length of said short fibers is 1 to 200 mm. 6. The heat insulating sheet material according to claim 5, wherein the amount of the short fibers is 1 to 60 parts by weight per 100 parts by weight of the resin component. 7. The heat insulating sheet material according to claim 5, wherein the heat insulating sheet material has a thickness of 0.3 to 50 mm. 8. The hollow inorganic particles are made of natural stone hollow particles and / or artificial stone hollow particles.
8. The heat insulating sheet material according to any one of 7. 9. The composition according to claim 1, wherein the amount of the inorganic hollow particles is 5 to 200 parts by weight per 100 parts by weight of the resin component.
9. The heat insulating sheet material according to any one of 8. 10. The inorganic hollow particles having an average particle diameter of 6
The heat insulating sheet material according to any one of claims 1 to 9, wherein the thickness is from μm to 5 mm. 11. The heat insulating sheet material according to claim 1, wherein at least one surface of the heat insulating sheet material is covered with a release sheet. 12. A ceiling material, a wall material, a floor material, a column, a roof material, a beam,
The heat insulating sheet material according to any one of claims 1 to 11, which is used for at least one kind of building member selected from the group consisting of an eave and a door. 13. A resin composition containing inorganic hollow particles is applied to a reinforcing base material to form a laminate. The laminate is moved, and the resin composition is adjusted by a coating thickness regulating knife having a constant distance from an underlying plate. A method for producing a heat insulating sheet material in which the applied thickness of an object is substantially uniform. 14. A resin composition containing inorganic hollow particles and short fibers is applied to a release sheet, the release sheet is moved, and the resin composition is controlled by a coating thickness regulating knife having a constant distance from an underlying plate. A method for producing a heat insulating sheet material having a substantially uniform coating thickness. 15. A method for producing a heat insulating sheet material in which a reinforcing base material is moved, and a resin composition is transferred and applied to the reinforcing base material by a measuring roller and a transfer roller rotating in a direction opposite to the measuring roller.