JP5221920B2 - Molded product using aluminum sheet with adhesive and its manufacturing method - Google Patents

Description

The present invention relates to a molded article and a manufacturing method thereof using Arumishi preparative with adhesive, in particular, relates to a molded article and a manufacturing method thereof using the adhesive backed Arumishi preparative used in joining aluminum sheet to the fiber reinforced plastic .

  In recent years, from the viewpoint of energy saving or the like, thermal energy such as sunlight entering from the outside is blocked to suppress changes in internal temperature in buildings, facilities, and equipment. For example, in order to block the intrusion of thermal energy from the roof and walls of the building, heat insulating material and aluminum foil are arranged inside the attic and the wall, and the tank installed outside is doubled on the outer wall of the tank, A device has been devised to increase the heat insulation efficiency by making the inside of the wall surface into a vacuum state.

These heat insulation methods require that the heat insulating material and the like be arranged separately from the roofing material and the wall surface material, and in the case of a tank, the work is complicated and complicated, such as a complicated wall surface structure of the container. It has disadvantages such as cost.
On the other hand, a heat insulating method in which an aluminum foil is directly attached to a roof or a wall surface is also conceivable, but the aluminum foil itself is peeled off from the structure due to weathering or deterioration, and there is a problem in durability.

  In addition, as a method of attaching an aluminum foil or the like, a method of applying an adhesive using an organic solvent to the aluminum foil and attaching the surface of a plate formed of fiber reinforced plastic (FRP) or plastic resin, or between the plates. However, even if such an adhesive is applied and pasted, the aluminum foil becomes uneven and cannot be flattened, making it difficult to efficiently reflect heat rays and the like. Moreover, before the resin is cured at the stage of forming the FRP, even if an aluminum foil coated with an adhesive using an organic solvent is applied to the FRP, the liquid resin and the adhesive cannot form a bond, Aluminum foil cannot be pasted. Furthermore, when an adhesive using an organic solvent is applied to an aluminum foil in advance and wound into a roll, the adhesive is cured and it is difficult to separate the aluminum foils.

On the other hand, Patent Document 1 describes a technique in which aluminum in which strips, pieces or powders, or fine fibers are knitted are arranged in at least one layer of a fiber reinforced plastic (FRP) laminate. Is fixed by bonding between the two FRP layers sandwiching the aluminum, or by strengthening the adhesive strength by a resin entering the aluminum fiber.
JP-A-10-278147

  In the thing of patent document 1, in order to enable the coupling | bonding between resin of the two FRP layers which pinch | interpose aluminum, it is necessary to provide the part in which aluminum is not arrange | positioned, and also knitted the thin fiber Also in the thing, since a minute gap exists, it is possible to block radio waves as in Patent Document 1, but it is difficult to reflect all the heat rays such as sunlight.

In order to solve such a problem, in the following Patent Document 2, the present applicant uses a resin material to laminate at least three or more resin layers and at least two resins among the resin layers. When the metal sheet pieces arranged on all the metal layers are overlapped with each other, the metal sheet pieces including metal sheet pieces containing a metal having heat ray reflection characteristics between the layers are arranged on the same surface discretely The heat insulation board characterized by the aggregate | assembly of the metal sheet piece of this being comprised so that the whole heat insulation board might be covered was proposed.
JP 2006-142801 A

  However, arranging and joining a plurality of metal sheet pieces so as to overlap each other is complicated and it is indispensable to form at least three resin layers, and the thickness of the molded product is more than necessary. This causes the problem of thickening.

In addition, as a result of intensive studies by the present inventors, in order to enhance the heat insulation, not only the mirror surface part of the sheet having heat insulation such as an aluminum foil or a metal sheet is disposed toward the outside where the heat rays are incident. It has been found that it is more effective to place the mirror part on the inside.
Furthermore, when using a metal sheet piece like patent document 2, the number of the metal sheets arrange | positioned between resin layers increases, As a result, not only manufacturing work will become complicated, but the thickness of a molded article will increase further. Will be. And since the clearance gap was formed between the metal sheets, it became the cause of heat insulation and the shielding property of electromagnetic waves falling.

  The problem to be solved by the present invention is to solve the above-mentioned problems, and can be stored in a roll or stacked as an aluminum sheet with an adhesive, and the aluminum sheet can be attached easily, and the thickness of the molded product is reduced. It is possible to provide an aluminum sheet with an adhesive excellent in heat insulation and electromagnetic wave shielding properties, and further provides a molded article using the aluminum sheet with an adhesive and a method for producing the same. That is.

Adhesive backed aluminum sheet used in the present invention, at least in given coating an adhesive on one side the dried adhesive-backed aluminum sheet was the Arumishi bets with a deposit of aluminum on both surfaces of the resin support sheet, said to be subjected coated The adhesive contains a water-soluble resin and water, and the applied adhesive has a resin component of 1 to 20%.

Preferably, in the aluminum sheet with an adhesive, the adhesion amount of the adhesive after drying is 50 to 200 mg / m ² per side, more preferably 60 to 80 mg / m ^2. It is characterized by.

More preferably, in the aluminum sheet with an adhesive, the resin support sheet is made of polyethylene terephthalate.

Invention, on at least one surface of Arumishi bets with a deposit of aluminum on both surfaces of the resin support sheet, adhesive is coated denoted dried, adhesive to be subjected coated water-soluble resin and water according to claim 1 Is a molded article using an aluminum sheet with an adhesive, and is characterized in that the aluminum sheet with an adhesive is disposed and bonded to the front or back surface of the fiber-reinforced plastic layer or between the fiber-reinforced plastic layers.

The invention according to claim 2 is a molded article using the aluminum sheet with an adhesive according to claim 1, wherein the adhesive to be applied has a resin component of 1 to 20%.
The invention according to claim 3 is the molded article using the aluminum sheet with an adhesive according to claim 1 or 2, wherein the adhesion amount of the adhesive after drying is 50 to 200 mg / m per side. ² It is characterized by being.
The invention according to claim 4 is a molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 3, wherein the resin support sheet is made of polyethylene terephthalate. .

The invention according to claim 5 is a molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 4 , characterized in that a polyester resin is used for the fiber-reinforced plastic.

The invention according to claim 6 is characterized in that the molded product according to any one of claims 1 to 5 is any one of a container, a roof plate, and a wall plate.

The invention according to claim 7 is a method for producing a molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 6 , wherein the fiber-reinforced plastic layer is molded using a resin containing moisture. The aluminum sheet with an adhesive is stuck to the fiber-reinforced plastic layer before the resin is solidified.

The invention according to claim 8 is the method for producing a molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 6 , wherein a polyester resin and moisture are provided on the front or back surface of the solidified fiber-reinforced plastic layer. The resin material containing the resin material is applied, and before the resin material is solidified, an aluminum sheet with an adhesive is attached to the portion of the fiber-reinforced plastic layer to which the resin material is applied.

The invention according to claim 9 is a method of manufacturing a molded article using the aluminum sheet with an adhesive according to claim 7 or 8 , and when the aluminum sheet with an adhesive is overlaid, a polyester is interposed between the aluminum sheets. A resin material containing a resin and moisture is applied, and the aluminum sheet is attached to a portion where the resin material is applied before the resin material is solidified.

Used in the present invention, at least the adhesive with an aluminum sheet adhesive was coated subjected dried on one side of the A Rumishito with a deposit of aluminum on both surfaces of the resin support sheet, adhesive to be subjected coated is water Since an adhesive resin and water are included, the aluminum sheet with an adhesive does not have adhesiveness in a dry state. For this reason, it can be stored even when the aluminum sheet is wound, and the rolled aluminum sheet can be unwound at the time of use, and can be cut out and used as required. In addition, it can react with a resin material containing polyester resin and moisture used for fiber-reinforced plastics during bonding, and can exhibit an adhesive function, so that an aluminum sheet can be bonded to fiber-reinforced plastics and the like very easily. It becomes possible.

  In addition, since the aluminum sheet used in the present invention has aluminum deposited on both sides of the resin support sheet, the surfaces on both sides of the aluminum sheet can be made into a mirror state, and heat insulation and shielding of electromagnetic waves It is possible to provide an aluminum sheet having excellent properties.

Moreover , in the aluminum sheet with an adhesive, the adhesive to be applied has a water-soluble resin component of 1 to 20%, and therefore, when dried, it does not exhibit adhesiveness and comes into contact with a resin material containing a polyester resin and moisture. When it does, it becomes possible to express adhesiveness effectively.
In particular, when the water-soluble resin component is less than 1% by weight, the adhesive function of the adhesive is lowered, and when the water-soluble resin component is more than 20% by weight, the adhesive has a high viscosity and is on the aluminum sheet. It becomes difficult to apply thinly and uniformly.

Further, the aluminum sheets with adhesive coating weight of the adhesive after drying, per side 50-200 mg / ^{m 2,} more preferably, because it is a 60-80 mg / ^{m 2,} aluminum with high adhesive strength adhesive A sheet can be provided.
If it is less than 50 mg / m ² , the adhesive is insufficient and the adhesive strength is lowered, and it is difficult to produce a continuous film on the aluminum sheet.
On the other hand, if it exceeds 200 mg / m ² , the cost of the adhesive is increased, and cohesive failure of the film itself is caused by the adhesive, which causes a decrease in the adhesive strength.

Furthermore , in the aluminum sheet with an adhesive, the resin support sheet is made of polyethylene terephthalate (hereinafter referred to as “PET”), so that even if PET is thin, it has excellent durability and bending resistance. In addition, when aluminum is deposited, a uniform mirror surface state can be formed, and an aluminum sheet that is lightweight and has good handleability can be obtained.

According to the invention according to claims 1 to 4 , since the aluminum sheet with an adhesive can react with a resin material containing a polyester resin and moisture used in the fiber reinforced plastic, it can exhibit an adhesive function. By placing and bonding the aluminum sheet with the adhesive between the front or back surface of the fiber reinforced plastic layer or between the fiber reinforced plastic layers, it is possible to easily obtain a molded product having excellent heat insulation and electromagnetic wave shielding properties. it can.

According to the invention of claim 5 , in a molded article using an aluminum sheet with an adhesive, since the fiber reinforced plastic uses a polyester resin, the adhesive on the aluminum sheet strengthens the fiber reinforced plastic and the aluminum sheet. It becomes possible to join to.

According to the invention of claim 6 , since the molded product is either a container, a roof plate, or a wall plate, it is possible to provide a container, a roof plate, or a wall plate excellent in heat insulation and electromagnetic wave shielding properties. It becomes possible.

According to the invention of claim 7 , in the method of manufacturing a molded article using an aluminum sheet with an adhesive, the fiber reinforced plastic layer is molded using a resin containing moisture, and the aluminum with the adhesive is solidified before the resin is solidified. Since the sheet is affixed to the fiber reinforced plastic layer, the adhesive on the aluminum sheet can firmly bond the resin of the fiber reinforced plastic and the aluminum sheet by moisture contained in the resin.

According to the invention according to claim 8 , in the method of manufacturing a molded article using an aluminum sheet with an adhesive, a resin material containing a polyester resin and moisture is applied to the front or back surface of the solidified fiber-reinforced plastic layer, and the resin material Since the aluminum sheet with an adhesive is attached to the portion of the fiber reinforced plastic layer to which the resin material is applied before the resin material is solidified, the resin material realizes bonding with the fiber reinforced plastic layer, and the resin material Due to the contained moisture, the adhesive on the aluminum sheet is bonded to the resin material, and as a result, the resin of the fiber reinforced plastic and the aluminum sheet can be firmly bonded.

According to the invention of claim 9 , in the method of manufacturing a molded article using an aluminum sheet with an adhesive, when the aluminum sheet with an adhesive is laminated and pasted, a resin material containing a polyester resin and moisture is provided between the aluminum sheets. The adhesive on each aluminum sheet is applied to the resin material by moisture contained in the resin material in order to apply the aluminum sheet to the portion where the resin material is applied before the resin material is solidified. As a result, the aluminum sheets can be firmly bonded to each other.

For molded article and a manufacturing method thereof using the same according to the adhesive backed aluminum sheet as well as the invention Ru used in the present invention will be described in detail below.
FIG. 1 shows an aluminum sheet in which aluminum 2,2 ′ is vapor-deposited on both surfaces of a resin support sheet 1.
It is preferable to use PET for the resin support sheet 1. Even if PET is thin, it is excellent in durability, bending resistance, and the like, and can form a uniform mirror surface state when aluminum is deposited, and can obtain an aluminum sheet that is lightweight and has good handleability.
Moreover, it is preferable that the surfaces on both sides of the aluminum sheet are in a mirror state, thereby efficiently reflecting the heat rays and electromagnetic waves from both sides of the aluminum sheet, and an aluminum sheet having extremely high heat insulation and electromagnetic wave shielding properties. It becomes possible to provide.

As shown in FIG. 2, adhesives 3, 3 ′ are applied to the surface of the aluminum sheet of FIG. Usually, it is difficult to firmly bond an aluminum sheet to fiber reinforced plastic, but by using an adhesive having the following components, it is possible to bond the aluminum sheet and fiber reinforced plastic well. I found.
(Adhesive component)
・ Water-soluble resin component: 1-20%
·water

  In particular, when the water-soluble resin component is less than 1% by weight, the adhesive function of the adhesive is lowered, and when the water-soluble resin component is more than 20% by weight, the adhesive has a high viscosity and is on the aluminum sheet. It becomes difficult to apply thinly and uniformly.

  The above water is a component that occupies most of the adhesive, and in addition to the above, various additives may be added as necessary to improve the resin dispersibility in the adhesive and the wettability to the aluminum sheet. Is also possible.

  In addition, application | coating of the adhesive agent to an aluminum sheet is not restricted to the case where it applies to both surfaces of an aluminum sheet, as shown in FIG. 2, One side or a part of aluminum sheet surface may be sufficient as needed.

  The aluminum sheet with the adhesive according to the present invention is completed by drying the aluminum sheet coated with the adhesive. Such an aluminum sheet with an adhesive is suppressed from exhibiting adhesiveness due to the adhesive, so the overlapping aluminum sheets do not adhere to each other even when rolled up, and the aluminum sheet can be easily wound. It becomes possible to expand.

In the aluminum sheet and the adhesive is dried denoted coating the coating weight of the adhesive after drying, per side 50-200 mg / ^{m 2,} more preferably, by a 60-80 mg / ^{m 2,} the adhesive It is possible to provide an aluminum sheet with an adhesive having high strength and excellent cost.
When the adhesion amount is less than 50 mg / m ² , the adhesive strength is reduced due to insufficient adhesive, and it is difficult to form a continuous film on the aluminum sheet.
On the other hand, when the adhesion amount is more than 200 mg / m ² , the cost of the adhesive increases, and cohesive failure of the film itself due to the adhesive occurs, resulting in a decrease in adhesive strength.

Next, the usage method of the aluminum sheet with an adhesive agent is demonstrated.
The adhesive attached to the surface of the aluminum sheet can exhibit adhesiveness when it comes into contact with a polyester resin and a resin material containing moisture.
For this reason, as shown in FIG. 3, it is bonded to one side of the fiber reinforced plastic layer 4 or disposed between the fiber reinforced plastic layers 4 and 4 ′ as shown in FIG. The molded product can be easily made into a molded product having excellent heat insulating properties and electromagnetic wave shielding properties. When the aluminum sheet with an adhesive according to the present invention is used, the aluminum sheet can be directly bonded to the surface of the fiber reinforced plastic layer as shown in FIG. It is possible to suppress an increase in the thickness of the molded product and to reduce the thickness of the molded product.

  In bonding the aluminum sheet, the fiber reinforced plastic layer is formed using a resin containing moisture, and the aluminum sheet with an adhesive is attached to the fiber reinforced plastic layer before the resin is solidified. As the resin material used for the fiber reinforced plastic layer, a resin material containing a polyester resin and moisture is used, and the moisture contained in the resin material expresses the adhesive function of the adhesive on the aluminum sheet. A polyester resin and an aluminum sheet are firmly bonded.

  In order to join an aluminum sheet with an adhesive to the surface of a fiber reinforced plastic layer that has already been solidified, a resin material containing a polyester resin and moisture is applied to the surface of the fiber reinforced plastic layer, and the resin material is solidified. It is performed by pasting an aluminum sheet with an adhesive on the portion of the fiber reinforced plastic layer to which the resin material has been applied. At this time, the resin material is bonded to the resin contained in the fiber reinforced plastic layer, and the adhesive on the aluminum sheet is also bonded to the polyester resin in the resin material due to moisture contained in the resin material. The resin of the fiber reinforced plastic layer and the aluminum sheet can be firmly bonded.

  Furthermore, as shown in FIG. 5, the aluminum sheets 10 and 12 with an adhesive agent can be overlapped. In this case, the resin material 11 containing a polyester resin and moisture is applied between the aluminum sheets, and the aluminum sheet is attached to a portion where the resin material is applied before the resin material is solidified. Due to the moisture contained in the resin material, the adhesive on each aluminum sheet is bonded to the polyester resin in the resin material, and as a result, the aluminum sheets can be firmly bonded to each other.

  Molded products in which an aluminum sheet with an adhesive is bonded to a fiber reinforced plastic layer can be used as containers such as boxes for storing electrical equipment, and building materials such as roofing boards and wallboards. It is possible to provide containers, roof boards, wall boards and the like having a high barrier property.

Aluminum was vapor-deposited on both sides of the PET film to create an aluminum sheet in which both sides were mirrored.
Next, an adhesive composed of 1 to 20% water-soluble resin and the remaining water was applied to both surfaces of the aluminum sheet and dried to prepare an aluminum sheet with an adhesive. The amount of adhesion after drying was 60 to 80 mg / m ² per side.

Next, a glass resin (manufactured by Central Glass Fiber Co., Ltd., trade name “ECM450-501 (104)”) and a polyester resin containing moisture (made by Showa Polymer Co., Ltd., trade name “Rigolac BS-158BQTN-1”) ) Was impregnated to form a fiber reinforced plastic layer.
Example 1
Before the resin impregnated with the fiber reinforced plastic layer was solidified, an aluminum sheet with an adhesive was attached to obtain a molded product.
(Example 2)
After the fiber reinforced plastic layer was completely solidified, a polyester resin containing the same moisture was again applied to the surface of the fiber reinforced plastic layer, and an aluminum sheet with an adhesive was attached to obtain a molded product.

(Example 3)
In Example 1, glass fibers (manufactured by Central Glass Fiber Co., Ltd., trade name “ECM450-501 (104)”) were placed on the surface of the aluminum sheet with adhesive, and a polyester resin containing the same moisture was placed. The fiber was impregnated to form another fiber reinforced plastic layer. As a result, a molded article in which an aluminum sheet with an adhesive was disposed between fiber reinforced plastic layers was obtained.

When the molded products according to Examples 1 to 3 were examined, it was confirmed that the aluminum sheet was favorably bonded to the fiber reinforced plastic layer.
In addition, when aluminum sheets with adhesives are coated with water-containing polyester resin (product name “Rigolac BS-158BQTN-1”) and are superposed, the aluminum sheets are bonded well. It was also confirmed that.

  Next, using the molded article according to Example 3, a heat insulation test and an electromagnetic wave shielding test were performed, and it was confirmed that good thermal insulation and electromagnetic wave shielding were obtained.

  As described above, according to the present invention, the aluminum sheet with an adhesive can be stored in a roll or stacked, and the aluminum sheet can be attached easily, and the thickness of the molded product can be reduced. It is possible to provide an aluminum sheet with an adhesive excellent in heat insulation and electromagnetic wave shielding, a molded article using the aluminum sheet with an adhesive, and a method for producing the same.

It is sectional drawing of the aluminum sheet used for the aluminum sheet with an adhesive agent which concerns on this invention. It is sectional drawing which shows an example of the aluminum sheet with an adhesive agent which concerns on this invention. It is sectional drawing which shows the state which adhered the aluminum sheet with an adhesive agent to the single side | surface of a fiber reinforced plastic layer. It is sectional drawing which shows the state of the aluminum sheet with an adhesive agent arrange | positioned between fiber reinforced plastic layers. It is sectional drawing which shows the state which piled up the aluminum sheet with an adhesive agent on the surface of a fiber reinforced plastic layer.

DESCRIPTION OF SYMBOLS 1 Resin support sheet 2 Aluminum 3 Adhesive 4 Fiber reinforced plastic layer 10,12 Aluminum sheet with adhesive 11 Resin material containing moisture

Claims (9)

On at least one surface of Arumishi bets with a deposit of aluminum on both surfaces of the resin support sheet, the adhesive is coated denoted drying, the adhesive to be subjected coated is an adhesive with an aluminum sheet containing a water-soluble resin and water In the molded product used,
A molded article using an aluminum sheet with an adhesive , characterized in that the aluminum sheet with an adhesive is disposed and bonded to the front or back surface of the fiber reinforced plastic layer or between the fiber reinforced plastic layers. The molded article using the aluminum sheet with an adhesive according to claim 1, wherein the applied adhesive has a resin component of 1 to 20%. .   In the molded article using the aluminum sheet with an adhesive according to claim 1 or 2, the adhesion amount of the adhesive after drying is 50 to 200 mg / m per side. ² A molded product using an aluminum sheet with an adhesive, which is characterized by The molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 3, wherein the resin support sheet is made of polyethylene terephthalate, and an aluminum sheet with an adhesive is used. Molding. 5. A molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 4 , wherein the fiber reinforced plastic uses a polyester resin. . The molded article according to any one of claims 1 to 5 , wherein the molded article using an adhesive-attached aluminum sheet is any one of a container, a roof board, and a wall board. In the manufacturing method of the molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 6 , the fiber reinforced plastic layer is molded using a resin containing moisture, and bonded before the resin is solidified. A method for producing a molded article using an aluminum sheet with an adhesive, wherein the aluminum sheet with an adhesive is attached to the fiber-reinforced plastic layer. In the method of manufacturing a molded article using the aluminum sheet with an adhesive according to any one of claims 1 to 6 , a resin material containing a polyester resin and moisture is applied to the front or back surface of the solidified fiber-reinforced plastic layer, A method for producing a molded article using an adhesive-attached aluminum sheet, wherein the adhesive-attached aluminum sheet is attached to a portion of the fiber-reinforced plastic layer to which the resin material has been applied before the resin material is solidified. In the manufacturing method of the molded article using the aluminum sheet with an adhesive according to claim 7 or 8 , when the aluminum sheet with an adhesive is laminated and laminated, a resin material containing a polyester resin and moisture is interposed between the aluminum sheets. A method for producing a molded article using an aluminum sheet with an adhesive, wherein the aluminum sheet is applied to a portion to which the resin material is applied before the resin material is solidified.

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