CN210875362U

CN210875362U - Activated carbon sheet material with high VOC adsorption performance

Info

Publication number: CN210875362U
Application number: CN201920516564.9U
Authority: CN
Inventors: 沈亚伦; 周小东; 范慧; 兰文文; 毕海明
Original assignee: Treezo New Meterial Science and Technology Group Co Ltd
Current assignee: Treezo New Meterial Science and Technology Group Co Ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-06-30
Anticipated expiration: 2029-04-16

Abstract

The utility model discloses an activated carbon plate with high VOC adsorption performance, this activated carbon plate include the substrate and through activated carbon glue film and the compound veneer layer of substrate, activated carbon glue film's surface have the fumed silica layer. In this application, the formation process of the activated carbon glue film with the fumed silica layer is: fully wetting activated carbon with water, adding the activated carbon into an adhesive, and simultaneously adding fumed silica; after cold press molding and hot press curing, water in the pores of the activated carbon is evaporated to form air passages in the activated carbon adhesive layer, flocculent fumed silica is suspended on the surface of the activated carbon adhesive layer to form a fumed silica layer, a porous structure is formed on the outer surface of the activated carbon adhesive layer, the porous structure is communicated with the pores of the activated carbon through the air passages formed by water evaporation, and the activated carbon is ensured to be in circulating contact with external air, so that the prepared activated carbon plate has extremely high VOC adsorption performance.

Description

Activated carbon sheet material with high VOC adsorption performance

Technical Field

The utility model belongs to the technical field of the active carbon panel is made, concretely relates to active carbon panel with high VOC adsorption performance.

Background

The artificial board releases more or less VOC (volatile organic compounds) due to the presence of the adhesive and the facing material, and the volatile organic compounds are easy to cause damage to human health.

In order to reduce VOC (volatile organic compounds) released by the artificial board to the outside, the Chinese patent application with the publication number of CN 107443815A discloses an activated carbon board, which comprises a board surface layer and a board core layer, wherein the board core layer is provided with orderly-arranged grooves, and activated carbon powder, dried pollen and a starch glue colloid filler are embedded in the grooves.

The activated carbon board utilizes the activated carbon to adsorb harmful substances such as formaldehyde, benzene and the like in the board, and although the absorption effect on VOC is better, the process of arranging the groove for filling activated carbon powder is complex in operation, high in production cost and incapable of being produced on a large scale.

The utility model discloses a chinese utility model patent with publication number CN201679191U discloses an activated carbon plaque, this activated carbon plaque includes plaque top layer, plaque sandwich layer and plaque bottom layer, and plaque sandwich layer one side or both sides surface set up activated carbon glue film (2), through activated carbon glue film (2) with plaque top layer and plaque sandwich layer, with plaque sandwich layer and plaque bottom layer be connected.

This active carbon plaque mixes the active carbon in the gluing agent as the panel intermediate layer, compares with the recess that sets up and be used for filling active carbon powder, and the feasibility is great, but simple physical mixing between active carbon and the gluing agent can appear the gluing agent and block up the active carbon hole after the solidification becomes the membrane, and the gluing agent can occupy the surface hole of active carbon even, leads to the active carbon to be difficult to exert its due adsorption, is difficult to reduce the VOC release amount of panel effectively.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide an activated carbon plate with high VOC adsorption performance.

In order to achieve the above purpose, the technical solution of the present application is as follows:

the activated carbon board with high VOC adsorption performance comprises a substrate and a wood veneer layer compounded with the substrate through an activated carbon adhesive layer, wherein the outer surface of the activated carbon adhesive layer is provided with a fumed silica layer.

In this application, the formation process of the activated carbon glue film with the fumed silica layer is: fully wetting activated carbon with water, adding the activated carbon into an adhesive, and simultaneously adding fumed silica; after cold press molding and hot press curing, water in the pores of the activated carbon is evaporated to form air passages in the activated carbon adhesive layer, flocculent fumed silica is suspended on the surface of the activated carbon adhesive layer to form a fumed silica layer, a porous structure is formed on the outer surface of the activated carbon adhesive layer, the porous structure is communicated with the pores of the activated carbon through the air passages formed by water evaporation, and the activated carbon is ensured to be in circulating contact with external air, so that the prepared activated carbon plate has extremely high VOC adsorption performance.

In the activated carbon plate with high VOC adsorption performance, at least one side surface of the substrate has a tooth-like structure. The dentate structure can increase the surface area of substrate, increases the area of contact of activated carbon glue film and substrate, and simultaneously, the fumed silica layer also can contact with the substrate more, improves the adsorption efficiency of active carbon to VOC.

In the above-mentioned activated carbon sheet material with high VOC adsorption performance, the tooth-like structure includes a plurality of bar-shaped grooves formed by invagination in the surface of the substrate, all the bar-shaped grooves are arranged in parallel, and each bar-shaped groove has a triangular cross section.

In the above-mentioned activated carbon plate material with high VOC adsorption performance, two adjacent strip-shaped grooves are arranged at an interval of 0.5-1.0 mm. The spacing arrangement makes the strip-shaped grooves not directly connected, and a substrate surface with the width of 0.5-1.0mm is left between the adjacent strip-shaped grooves, which is helpful for ensuring the bonding force between the substrate and the activated carbon glue layer.

In the activated carbon plate with high VOC adsorption performance, at least two tooth-shaped structures are arranged on the same surface of the substrate, and a space is reserved between every two adjacent tooth-shaped structures. Similarly, the strip-shaped grooves are arranged in groups, each group forms a tooth-shaped structure, and a certain width of the surface of the substrate is also left between the adjacent tooth-shaped structures, which also helps to ensure the bonding force between the substrate and the activated carbon glue layer.

In the above-mentioned activated carbon sheet having high VOC adsorbing property, each of the tooth structures includes at least five strip-shaped grooves.

In the activated carbon plate with high VOC adsorption performance, the interval between adjacent tooth-shaped structures is 1-2 cm.

In the activated carbon board with high VOC adsorption performance, at least two wood veneer layers are arranged on one side of the substrate, an activated carbon adhesive layer is also arranged between the adjacent wood veneer layers, and the outer surface of the activated carbon adhesive layer is also provided with a fumed silica layer.

In the activated carbon plate with high VOC adsorption performance, the base material is a poplar substrate.

Compared with the prior art, the beneficial effect of this application is embodied in:

in the activated carbon sheet material of this application, the surface of activated carbon glue film has the fumed silica layer, and this formation process of taking the activated carbon glue film on fumed silica layer is: fully wetting activated carbon with water, adding the activated carbon into an adhesive, and simultaneously adding fumed silica; after cold press molding and hot press curing, water in the pores of the activated carbon is evaporated to form air passages in the activated carbon adhesive layer, flocculent fumed silica is suspended on the surface of the activated carbon adhesive layer to form a fumed silica layer, a porous structure is formed on the outer surface of the activated carbon adhesive layer, the porous structure is communicated with the pores of the activated carbon through the air passages formed by water evaporation, and the activated carbon is ensured to be in circulating contact with external air, so that the prepared activated carbon plate has extremely high VOC adsorption performance.

Drawings

Fig. 1 is a schematic structural diagram of an activated carbon sheet material with high VOC adsorption performance of the present invention;

fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 1 and fig. 2, the activated carbon plate with high VOC adsorption performance of the present embodiment includes a substrate 1 and a wood veneer layer 3 compounded with the substrate 1 through an activated carbon glue layer 2; the substrate 1 used in this example is a poplar substrate. On one side of the substrate 1, the wood veneer layer 3 may be provided with only one layer, or may be provided with multiple layers (for example, two wood veneer layers 3 are provided in this embodiment); when the multiple wood veneer layers 3 are arranged, the adjacent wood veneer layers 3 are also compounded by the activated carbon glue layer 2.

As shown in fig. 2 and seen in fig. 1, in this embodiment, the outer surface of the activated carbon glue layer 2 is provided with the fumed silica layer 4, and the forming process of the activated carbon glue layer 2 with the fumed silica layer 4 is as follows: fully wetting activated carbon with water, adding the activated carbon into an adhesive, and simultaneously adding fumed silica; after cold press forming and hot press curing, the water evaporation in the active carbon pore space forms the air flue in the active carbon glue layer 2, and the flocculent fumed silica suspension forms the fumed silica layer 4 on the surface of the active carbon glue layer 2, forms the porous structure on the outer surface of the active carbon glue layer 2, and the air flue formed by the water evaporation of the porous structure is communicated with the active carbon pore space, thereby ensuring that the active carbon can be contacted with the outside air in a circulating way, and further ensuring that the prepared active carbon plate has extremely high VOC adsorption performance.

In order to further improve the adsorption performance of the activated carbon adhesive layer 2 with the fumed silica layer 4 on VOCs, the tooth-like structures 5 are disposed on both surfaces (or one side) of the poplar substrate in the present embodiment. Dentate structure 5 can increase the surface area of poplar base plate, increases the area of contact of activated carbon glue film 2 and poplar base plate, and simultaneously, fumed silica layer 4 also can contact with poplar base plate more, improves the adsorption efficiency of active carbon to VOC.

As shown in fig. 2, in the present embodiment, the tooth-shaped structure 5 includes a plurality of bar-shaped grooves 51 formed by recessing in the surface of the poplar substrate, all the bar-shaped grooves 51 are arranged in parallel, and the interval between two adjacent bar-shaped grooves 51 is 0.5-1.0 mm; the strip-shaped grooves 51 are not directly connected with each other due to the spacing arrangement, and the surface of the poplar substrate with the width of 0.5-1.0mm is reserved between the adjacent strip-shaped grooves 51, which is helpful for ensuring the bonding force between the poplar substrate and the activated carbon glue layer 2.

And, each of the strip grooves 51 has a triangular cross section with a vertex angle thereof opposite to the notch of the strip groove 51. The strip-shaped groove 51 with the large opening and the triangular cross section is convenient for adhesive injection, and ensures that the activated carbon adhesive layer 2 and the fumed silica layer 4 are fully contacted with the inner wall of the strip-shaped groove 51.

In order to facilitate the arrangement of the tooth-shaped structures 5 and ensure the bonding force between the poplar substrate and the activated carbon adhesive layer 2, in the embodiment, the strip-shaped grooves 51 are not continuously arranged on the surface of the poplar substrate, and the tooth-shaped structures 5 are formed on the whole surface of the poplar substrate; the strip-shaped grooves 51 are arranged in groups, each group forms a tooth-shaped structure 5, and each tooth-shaped structure 5 comprises at least three strip-shaped grooves 51; a spacing of 1-2cm also remains between adjacent tooth-like structures 5.

Claims

1. The activated carbon board with high VOC adsorption performance comprises a base material (1) and a wood veneer layer (3) compounded with the base material (1) through an activated carbon adhesive layer (2), and is characterized in that the outer surface of the activated carbon adhesive layer (2) is provided with a fumed silica layer (4).

2. The activated carbon sheet with high VOC-adsorbing ability according to claim 1, wherein at least one side surface of the substrate (1) has a tooth-like structure (5).

3. The activated carbon sheet having high VOC-adsorbing ability according to claim 2, wherein the tooth-like structure (5) comprises a plurality of stripe-shaped grooves (51) formed by recessing in the surface of the substrate (1), all the stripe-shaped grooves (51) are arranged in parallel, and each stripe-shaped groove (51) has a triangular cross section.

4. The activated carbon sheet having high VOC adsorbing performance as claimed in claim 3, wherein two adjacent stripe-shaped grooves (51) are provided at an interval of 0.5-1.0 mm.

5. The activated carbon sheet having high VOC adsorbing properties as claimed in any of claims 2-4 wherein at least two of said teeth (5) are on the same surface of said substrate (1), and a space is left between adjacent teeth (5).

6. The activated carbon sheet with high VOC adsorbing performance of claim 5 wherein each tooth structure (5) comprises at least five stripe-shaped grooves (51).

7. The activated carbon sheet having high VOC adsorbing properties as claimed in claim 5 wherein the spacing between adjacent teeth (5) is 1-2 cm.

8. The activated carbon board with high VOC adsorption performance as claimed in any one of claims 1-4 or 6-7, characterized in that, on one side of the substrate (1), the wood veneer layers (3) have at least two layers, an activated carbon adhesive layer (2) is also arranged between adjacent wood veneer layers (3), and the outer surface of the activated carbon adhesive layer (2) is also provided with a fumed silica layer (4).

9. The activated carbon sheet with high VOC adsorbing performance as claimed in any one of claims 1-4 or 6-7, wherein the substrate (1) is a poplar substrate.