Low-volatility shielding high-temperature-resistant silica gel foam tape

Abstract

The utility model relates to a low-volatility shielding high-temperature-resistant silica gel foam adhesive tape which comprises a low-volatility PET (polyethylene terephthalate) single-sided adhesive tape, a low-volatility first shielding layer, high-temperature-resistant silica gel foam and a low-volatility second shielding layer which are sequentially arranged, and the low-volatility PET single-sided adhesive tape is attached to the surface layer of the first shielding layer; the bottom layer of the first shielding layer is attached to the surface layer of the high-temperature-resistant silica gel foam, and the bottom layer of the high-temperature-resistant silica gel foam is attached to the low-volatility second shielding layer. The low-volatility shielding high-temperature-resistant silica gel foam tape not only realizes the characteristics of low volatility and shielding, but also simplifies the production process, reduces the production cost, and can meet the diversified requirements of the market.

Description

Technical Field

[0001] The utility model relates to the technical field of silicone foam, in particular to a low-volatile shielding high-temperature resistant silicone foam tape. Background Art

[0002] The existing shielding high-temperature resistant wrapped foam tape is usually made and formed into a wrap according to a corresponding mold, and its shape and size have a large limitation range. Therefore, it is impossible to wrap and form a special shape or a special-shaped structure, so there are great shape limitations and it cannot meet the diverse needs of the market. The production and forming of this wrapped foam tape requires a series of production processes such as slitting, wrapping, and cutting. The production process is complex, which not only increases the production cost but also reduces the production efficiency. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a low-volatile shielding high-temperature resistant silicone foam tape, which not only realizes the characteristics of low volatility and shielding, but also simplifies the production process, reduces the production cost, and can meet the diverse needs of the market.

[0004] The technical solution adopted by the utility model to solve its technical problem is: a low-volatile shielding high-temperature resistant silicone foam tape, which sequentially includes a low-volatile PET single-sided tape, a low-volatile first shielding layer, a high-temperature resistant silicone foam, and a low-volatile second shielding layer. The low-volatile PET single-sided tape is attached to the surface layer of the first shielding layer, the bottom layer of the first shielding layer is attached to the surface layer of the high-temperature resistant silicone foam, and the bottom layer of the high-temperature resistant silicone foam is attached to the low-volatile second shielding layer.

[0005] In one embodiment, the first shielding layer of the low-volatile shielding high-temperature resistant silicone foam tape is a conductive cloth single-sided adhesive or a metal single-sided adhesive.

[0006] In one embodiment, the side of the first shielding layer of the low-volatile shielding high-temperature resistant silicone foam tape that is attached to the high-temperature resistant silicone foam is a first low-volatile silicone layer.

[0007] In one embodiment, the second shielding layer of the low-volatile shielding high-temperature resistant silicone foam tape is a low-volatile conductive cloth double-sided adhesive or a low-volatile metal double-sided adhesive.

[0008] In one embodiment, the side of the second shielding layer of the low-volatile shielding high-temperature resistant silicone foam tape that is attached to the high-temperature resistant silicone foam is a second low-volatile silicone layer, and the other side of the second shielding layer is a low-volatile acrylic adhesive layer.

[0009] In one embodiment, the low-volatile PET single-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape is an insulating mylar tape.

[0010] In one embodiment, the thickness of the low-volatile PET single-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape is 0.01 mm - 0.02 mm.

[0011] In one embodiment, the color of the low-volatile PET single-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape is black or transparent.

[0012] The beneficial effects of the present application are as follows:

[0013] The present application provides a low-volatile shielding high-temperature resistant silicone foam tape. The foam tape is formed by first laminating a low-volatile PET single-sided tape on the surface layer of a first shielding layer, then laminating the bottom layer of the first shielding layer on the surface layer of a high-temperature resistant silicone foam to form a semi-finished structure, and then laminating a low-volatile second shielding layer on the bottom layer of the high-temperature silicone foam to obtain the low-volatile shielding high-temperature resistant silicone foam tape. The foam tape can be made into a roll material. When used by the client, the shape can be diversified only through die-cutting or punching processes, which improves the efficiency and reduces the cost at the same time. The low-volatile shielding high-temperature resistant silicone foam tape not only circumvents the limitations of the shape of traditional shielding wrapped foam tapes, but also simplifies the production process, reduces the production cost, and also has the effects of low volatility and high temperature resistance, which can meet the diverse needs of the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the low-volatile shielding high-temperature resistant silicone foam tape according to the embodiment of the present application;

[0015] Figure 2 It is a schematic diagram of the conductive cloth single-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape according to the embodiment of the present application;

[0016] Figure 3 It is a schematic diagram of the metal single-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape according to the embodiment of the present application;

[0017] Figure 4 It is a schematic diagram of the low-volatile conductive cloth double-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape according to the embodiment of the present application;

[0018] Figure 5 It is a schematic diagram of the low-volatile metal double-sided tape of the low-volatile shielding high-temperature resistant silicone foam tape according to the embodiment of the present application;

[0019] Wherein:

[0020] 1. Low-volatile PET single-sided tape; 2. First shielding layer; 3. High-temperature resistant silicone foam; 4. Second shielding layer; 21. Conductive cloth single-sided tape; 22. Metal single-sided tape; 23. First low-volatile silicone layer; 211. First conductive cloth; 221. First metal; 41. Low-volatile conductive cloth double-sided tape; 42. Low-volatile metal double-sided tape; 43. Second low-volatile silicone layer; 44. Low-volatile acrylic adhesive layer; 411. Second conductive cloth; 421. Second metal. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1 As shown, an embodiment of the present application provides a low-volatile shielding high-temperature resistant silicone foam tape, which sequentially includes a low-volatile PET single-sided tape 1, a low-volatile first shielding layer 2, a high-temperature resistant silicone foam 3 and a low-volatile second shielding layer 4, the low-volatile PET single-sided tape 1 is bonded to the surface layer of the first shielding layer 2, the bottom layer of the first shielding layer 2 is bonded to the surface layer of the high-temperature resistant silicone foam 3, and the bottom layer of the high-temperature resistant silicone foam 3 is bonded to the low-volatile second shielding layer 4.

[0023] Specifically, firstly, a low-volatile PET single-sided tape 1 is laminated to the surface of the first shielding layer 2, and then the bottom layer of the first shielding layer 2 is laminated to the surface of the high-temperature resistant silicone foam 3 to form a semi-finished product structure, and then a low-volatile second shielding layer 4 is laminated to the bottom layer of the high-temperature silicone foam to obtain a low-volatile shielding high-temperature resistant silicone foam tape. The low-volatile shielding high-temperature resistant silicone foam tape is prepared by a laminating and gluing process, can be rolled into a roll, and made into any shape by die-cutting or punching equipment.

[0024] The first shielding layer 2 is a conductive cloth single-sided adhesive 21 or a metal single-sided adhesive 22, and the second shielding layer 4 is a low-volatile conductive cloth double-sided adhesive 41 or a low-volatile metal double-sided adhesive 42. The conductive cloth and the metal substrate have excellent shielding properties. In a wide frequency band, the shielding effectiveness of the metal is greater than 90dB, and the shielding effectiveness of the conductive cloth is greater than>70dB.

[0025] Among them, the long-term high temperature resistance of the high temperature resistant silicone foam 3 is 150 degrees, and the long-term high temperature resistance of the first shielding layer 2 and the second shielding layer 4 is 120 degrees, so the overall long-term high temperature resistance of the low volatile shielding high temperature resistant silicone foam tape is 120 degrees. The high temperature resistant silicone foam 3 is prepared by a special process (foaming or extrusion), and then shaped by high temperature baking, so it has excellent anti-deformation properties, and still maintains a high resilience after long-term compression use, and the high temperature resilience is greater than 90%.

[0026] Among them, the first low-volatile silicone layer 23 where the first shielding layer 2 is bonded to the high-temperature resistant silicone foam 3, the second low-volatile silicone layer 43 where the second shielding layer 4 is bonded to the high-temperature resistant silicone foam 3, and the low-volatile PET single-sided tape 1 all adopt low-volatile glue formulations and are combined with a high-temperature baking process. This makes the bonded product have low-volatile characteristics.

[0027] It should be explained that the low-volatile glue formulation is an existing glue formulation, and this application does not make any improvements to it.

[0028] The determination method of low volatility is as follows: Cut the low-volatile shielding high-temperature resistant silicone foam tape into a fixed specification, place it in a heating container, cover the surface with a glass plate and a black PC plastic sheet, take it out after baking at 130 °C on the heating table for 48H, visually observe and measure the haze at the most severe point of volatilization. If the haze value < 1.0, it is low-volatile. If there is a droplet phenomenon on the test block, it is directly determined as a defective product.

[0029] The low-volatile shielding high-temperature resistant silicone foam tape obtained through the above structure not only avoids the limitations of the shape of traditional shielding wrapped foam tapes, but also simplifies the production process, reduces production costs, and at the same time has low volatility and high-temperature resistance effects, which can meet the diverse needs of the market.

[0030] Such as Figure 2 and Figure 3 As shown, in one embodiment, the first shielding layer 2 of the low-volatile shielding high-temperature resistant silicone foam tape is a conductive cloth single-sided tape 21 or a metal single-sided tape 22.

[0031] Specifically, the conductive cloth single-sided tape 21 includes a first conductive cloth 211 and a first low-volatile silicone layer 23, and the metal single-sided tape 22 includes a first metal 221 and a first low-volatile silicone layer 23. The first low-volatile silicone layer 23 bonds the first conductive cloth 211 or the first metal 221 to the surface layer of the high-temperature resistant silicone foam 3. Both the first conductive cloth 211 and the first metal 221 have excellent shielding properties. In a relatively wide frequency band, the shielding effectiveness of the first metal 221 is greater than 90 dB, and the shielding effectiveness of the first conductive cloth 211 is greater than 70 dB. This setting makes the product have good shielding performance.

[0032] Such as Figure 2 and Figure 3 As shown, in one embodiment, the side of the first shielding layer 2 of the low-volatile shielding high-temperature resistant silicone foam tape that is bonded to the high-temperature resistant silicone foam 3 is the first low-volatile silicone layer 23. The first low-volatile silicone layer 23 adopts a low-volatile glue formulation and is combined with a high-temperature baking process. This setting makes the bonded product have low volatility.

[0033] Such as Figure 4 and Figure 5As shown, in one embodiment, the second shielding layer 4 of the low-volatility shielding high-temperature resistant silicone foam tape is a low-volatility conductive cloth double-sided tape 41 or a low-volatility metal double-sided tape 42.

[0034] Specifically, the low-volatility conductive cloth double-sided tape 41 sequentially includes a second low-volatility silicone layer 43, a second conductive cloth 411, and a low-volatility acrylic adhesive layer 44. The low-volatility metal double-sided tape 42 sequentially includes a second low-volatility silicone layer 43, a second metal 421, and a low-volatility acrylic adhesive layer 44. The second low-volatility silicone layer 43 adheres the second conductive cloth 411 or the second metal 421 to the bottom layer of the high-temperature resistant silicone foam 3. Both the second conductive cloth 411 and the second metal 421 have excellent shielding properties. In a relatively wide frequency band, the shielding effectiveness of the second metal 421 is greater than 90 dB, and the shielding effectiveness of the second conductive cloth 411 is greater than 70 dB. This setting enables the product to have good shielding performance.

[0035] As Figure 4 and Figure 5 shown, in one embodiment, the side of the second shielding layer 4 of the low-volatility shielding high-temperature resistant silicone foam tape that is adhered to the high-temperature resistant silicone foam 3 is the second low-volatility silicone layer 43, and the other side of the second shielding layer 4 is the low-volatility acrylic adhesive layer 44. Both the second low-volatility silicone layer 43 and the low-volatility acrylic adhesive layer 44 adopt a low-volatility glue formula and are combined with a high-temperature baking process. This setting enables the adhered product to have the characteristic of low volatility.

[0036] As Figure 1 shown, in one embodiment, the low-volatility PET single-sided tape 1 of the low-volatility shielding high-temperature resistant silicone foam tape is an insulating mylar tape. This insulating mylar tape adopts a low-volatility glue formula and is combined with a high-temperature baking process. This setting enables the adhered product to have the characteristic of low volatility.

[0037] As Figure 1 shown, in one embodiment, the thickness of the low-volatility PET single-sided tape 1 of the low-volatility shielding high-temperature resistant silicone foam tape is 0.01 mm - 0.02 mm. Among them, the thickness of the low-volatility PET single-sided tape 1 can be 0.01 mm, 0.015 mm, and 0.02 mm, preferably 0.015 mm. The low-volatility PET single-sided tape 1 with this thickness has good adhesiveness and high-temperature resistance.

[0038] As Figure 1 shown, in one embodiment, the color of the low-volatility PET single-sided tape 1 of the low-volatility shielding high-temperature resistant silicone foam tape is black or transparent. The transparent low-volatility PET single-sided tape 1 has high versatility, while the black low-volatility PET single-sided tape 1 has light-shielding properties and temperature resistance and can be applied in specific professional fields.

[0039] The above-described embodiments merely represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A low-volatile shielding high-temperature resistant silicone foam tape, characterized in that, It includes a low-volatile PET single-sided tape (1), a low-volatile first shielding layer (2), a high-temperature resistant silicone foam (3), and a low-volatile second shielding layer (4) arranged in sequence. The low-volatile PET single-sided tape (1) is attached to the surface layer of the first shielding layer (2), the bottom layer of the first shielding layer (2) is attached to the surface layer of the high-temperature resistant silicone foam (3), and the bottom layer of the high-temperature resistant silicone foam (3) is attached to the low-volatile second shielding layer (4).

2. The low-volatile shielding high-temperature resistant silicone foam tape according to claim 1, wherein The first shielding layer (2) is a conductive cloth single-sided adhesive (21) or a metal single-sided adhesive (22).

3. The low-volatile shielding high-temperature resistant silica gel foam tape according to claim 1, wherein One side of the first shielding layer (2) that is attached to the high-temperature resistant silicone foam (3) is provided with a first low-volatile silicone layer (23).

4. The low-volatility shielding and high-temperature resistant silicone foam tape according to claim 1, wherein The second shielding layer (4) is a low-volatile conductive cloth double-sided adhesive (41) or a low-volatile metal double-sided adhesive (42).

5. The low-volatility shielding high-temperature resistant silicone foam tape according to claim 1, wherein One side of the second shielding layer (4) that is attached to the high-temperature resistant silicone foam (3) is provided with a second low-volatile silicone layer (43), and the other side of the second shielding layer (4) is provided with a low-volatile acrylic adhesive layer (44).

6. The low-volatility shielding high-temperature resistant silicone foam tape according to claim 1, wherein The low-volatile PET single-sided tape (1) is an insulating mylar tape.

7. The low-volatile shielding high-temperature resistant silicone foam tape according to claim 1, characterized in that, The thickness of the low-volatile PET single-sided tape (1) is 0.01 mm - 0.02 mm.

8. The low-volatile shielding high-temperature resistant silicone foam tape according to claim 1, wherein, The color of the low-volatile PET single-sided tape (1) is black or transparent.

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