CN220868468U - Waterproof paper surface gypsum board - Google Patents
Waterproof paper surface gypsum board Download PDFInfo
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- CN220868468U CN220868468U CN202322311000.0U CN202322311000U CN220868468U CN 220868468 U CN220868468 U CN 220868468U CN 202322311000 U CN202322311000 U CN 202322311000U CN 220868468 U CN220868468 U CN 220868468U
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- waterproof
- gypsum board
- paper
- layer
- facing
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- 229910052602 gypsum Inorganic materials 0.000 title claims abstract description 92
- 239000010440 gypsum Substances 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 11
- 229920001328 Polyvinylidene chloride Polymers 0.000 claims description 7
- 239000005033 polyvinylidene chloride Substances 0.000 claims description 7
- 229920002396 Polyurea Polymers 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 67
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 150000004683 dihydrates Chemical class 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model discloses a waterproof paper-surface plasterboard, which comprises a plasterboard core, a facing paper layer, a waterproof air layer and a waterproof layer; the facing paper layers are adhered to the surfaces of the gypsum board core; the waterproof air layer is arranged on the surface of the facing paper layer, which faces away from the gypsum board core; the waterproof layer is arranged on the surface of the waterproof air layer, which is away from the waterproof air layer. In the waterproof paper gypsum board, the waterproof layer can block liquid water and has a certain blocking effect on gaseous water, the waterproof layer can block the gaseous water, the waterproof layer is arranged on the inner layer of the waterproof layer, after water and most of water vapor are blocked by the waterproof layer, the waterproof layer only needs to block the rest small part of water vapor, and the moistureproof effect is greatly improved.
Description
Technical Field
The utility model relates to the technical field of gypsum boards, in particular to a waterproof paper surface gypsum board.
Background
The paper gypsum board is made up by using building gypsum as main raw material, adding fibre, additive (foaming agent, retarder, etc.) and proper quantity of light filler, adding water, mixing them into slurry, forming, sticking special-made facing paper on both sides and drying. The paper gypsum board has the characteristics of light weight, sound insulation, heat insulation, strong processability and simple construction method.
In order to achieve the aim of light weight and high strength, a foaming agent is required to be added when the gypsum board is manufactured, so that a large number of large air holes are generated; in the drying process, a large number of micro-pores are generated due to evaporation of water, and the porosity of the gypsum board reaches more than 30%. Therefore, the gypsum board is waterproof and moistureproof, the gypsum board is easy to cause mildew of the facing paper after being wetted, and the board core and the facing paper are separated or deformed due to excessive water absorption, so that the service function is seriously affected. The existing waterproof gypsum board has the problems that the waterproof performance can be improved by doping waterproof materials such as organic silicon and the like into the gypsum board, the effect is still unsatisfactory, particularly, water vapor can still freely permeate, and the dampproof effect is not good enough.
Disclosure of utility model
The utility model mainly aims to provide a waterproof paper-surface plasterboard, which aims to improve the moisture resistance of the waterproof paper-surface plasterboard.
In order to achieve the above object, the present utility model provides a waterproof paper gypsum board comprising:
A gypsum board core;
a facing paper layer adhered to each surface of the gypsum board core;
the waterproof air layer is arranged on the surface of the facing paper layer, which is away from the gypsum board core; and
The waterproof layer is arranged on the surface of the waterproof air layer, which is away from the waterproof air layer.
In some embodiments of the present utility model, the waterproof air layer is made of polyvinylidene chloride.
In some embodiments of the utility model, the thickness of the waterproof gas layer is set to 30 μm to 300 μm.
In some embodiments of the utility model, the material of the waterproof layer is provided as polyurea.
In some embodiments of the utility model, the thickness of the waterproof layer is set to 200 μm to 1000 μm.
In some embodiments of the utility model, the gypsum board is provided at a thickness of 9.5mm to 25mm.
In some embodiments of the utility model, the facing layer comprises a first facing paper and a second facing paper, the first facing paper is adhered to the surface of the gypsum board core, the second facing paper is adhered to the surface of the first facing paper facing away from the gypsum board core, the first facing paper is adhered circumferentially along the length of the gypsum board core, and the second facing paper is adhered circumferentially along the width of the gypsum board core.
In some embodiments of the utility model, the thickness of the first facestock is set to 0.15mm to 0.5mm.
In some embodiments of the utility model, the thickness of the second facing is set to 0.15mm to 0.5mm.
In some embodiments of the utility model, the first facing sheet is a water absorbing sheet and the second facing sheet is a water resistant sheet, the first facing sheet completely covers the gypsum board core, and the second facing sheet completely covers the first facing sheet.
In some embodiments of the utility model, the facing paper layer has a roughness that is greater on a side of the facing paper layer that is bonded to the gypsum board core than on a side of the facing paper layer that is bonded to the facing away from the gypsum board core.
In the waterproof paper gypsum board, the waterproof layer can block liquid water and has a certain blocking effect on gaseous water, the waterproof layer can block the gaseous water, the waterproof layer is arranged on the inner layer of the waterproof layer, after water and most of water vapor are blocked by the waterproof layer, the waterproof layer only needs to block the rest small part of water vapor, and the moistureproof effect is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a cross-sectional view of one embodiment of a water resistant paper gypsum board of the present utility model.
Reference numerals illustrate:
| Reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Waterproof paper surface gypsum board | 22 | Second facing paper |
| 10 | Gypsum board core | 30 | Waterproof air layer |
| 20 | Protective paper layer | 40 | Waterproof layer |
| 21 | First facing paper |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
The paper gypsum board is made up by using building gypsum as main raw material, adding fibre, additive (foaming agent, retarder, etc.) and proper quantity of light filler, adding water, mixing them into slurry, forming, sticking special-made facing paper on both sides and drying. The paper gypsum board has the characteristics of light weight, sound insulation, heat insulation, strong processability and simple construction method.
In order to achieve the aim of light weight and high strength, a foaming agent is required to be added when the gypsum board is manufactured, so that a large number of large air holes are generated; in the drying process, a large number of micro-pores are generated due to evaporation of water, and the porosity of the gypsum board reaches more than 30%. Therefore, the gypsum board is waterproof and moistureproof, the gypsum board is easy to cause mildew of the facing paper after being wetted, and the board core and the facing paper are separated or deformed due to excessive water absorption, so that the service function is seriously affected. The existing waterproof gypsum board has the problems that the waterproof performance can be improved by doping waterproof materials such as organic silicon and the like into the gypsum board, the effect is still unsatisfactory, particularly, water vapor can still freely permeate, and the dampproof effect is not good enough.
The utility model provides a waterproof paper gypsum board 100, which comprises a gypsum board core 10, a facing paper layer 20, a waterproof air layer 30 and a waterproof layer 40; a facing paper layer 20 is adhered to each surface of the gypsum board core 10; the waterproof air layer 30 is arranged on the surface of the facing paper layer 20 facing away from the gypsum board core 10; the waterproof layer 40 is disposed on a surface of the waterproof layer 30 facing away from the waterproof layer 30.
In the waterproof paper gypsum board 100, the waterproof layer 40 can block liquid water and has a certain blocking effect on gaseous water, the waterproof air layer 30 can block the gaseous water, the waterproof air layer 30 is arranged on the inner layer of the waterproof layer 40, after water and most of water vapor are blocked by the waterproof layer 40, the waterproof air layer 30 only needs to block the rest of water vapor, and the moistureproof effect is greatly improved.
The waterproof layer 30 may be made of polyethylene, polyvinylidene chloride, etc., and the waterproof layer 40 may be made of polyurethane, polyurea, etc.; the waterproof layer 40 and the waterproof layer 30 are generally provided as a coating film, and may be provided as a film.
Further, in some embodiments of the present utility model, the waterproof air layer 30 is made of polyvinylidene chloride. Polyvinylidene chloride is a material with high toughness, high barrier property, good chemical stability and heat shrinkage, and has excellent gas and water vapor barrier property, and the moisture-proof effect of the waterproof paper gypsum board 100 can be further improved by adopting a polyvinylidene chloride coating film.
In some embodiments of the present utility model, the material of the waterproof layer 40 is polyurea. The polyurea coating film has excellent waterproof performance, is insensitive to environmental temperature and humidity, and can meet the basic dampproof requirement of the waterproof paper gypsum board 100.
The waterproof layer 30 is typically formed of a polyvinylidene chloride coating film, and the waterproof layer 40 is typically formed of a polyurea coating film. The coating layer has no seam, good waterproof effect and simple and feasible processing operation.
Considering that the excessive thickness of the waterproof layer 30 and the waterproof layer 40 causes waste of materials, increases costs, and is disadvantageous in light weight of the product, and the excessive thickness affects moisture barrier property, the thickness of the waterproof layer 30 is set to 30 μm to 300 μm in some embodiments of the present utility model. Specifically, 30 μm, 40 μm, 45 μm, 70 μm, 90 μm, 110 μm, 200 μm, 250 μm, 300 μm, etc. are set. In other embodiments of the present utility model, the thickness of the waterproof layer 40 is set to 200 μm to 1000 μm. Specifically, 200 μm, 240 μm, 245 μm, 270 μm, 390 μm, 710 μm, 800 μm, 850 μm, 900 μm, 1000 μm, etc. can be set. This avoids material wastage while ensuring the moisture protection requirements of the waterproof gypsum plasterboard 100.
Further, considering that too large a gypsum board thickness also results in material waste, while too small a gypsum board thickness does not guarantee the strength requirements of the waterproof paper-faced gypsum board 100, in some embodiments of the utility model, the gypsum board thickness is set to 9.5mm to 25mm. Specifically, it may be 9.5mm, 10mm, 12mm, 15mm, 20mm, 24mm, 24.5mm, 25mm, etc. By the arrangement, material waste can be avoided, and the strength of the waterproof paper gypsum board 100 can be ensured.
In view of the fact that the single-layer facing layer 20 inevitably has some gaps when the gypsum board core 10 is adhered and covered, in some embodiments of the present utility model, the facing layer 20 includes a first facing layer 21 and a second facing layer 22, the first facing layer 21 is adhered to the surface of the gypsum board core 10, the second facing layer 22 is adhered to the surface of the first facing layer 21 facing away from the gypsum board core 10, the first facing layer 21 is adhered circumferentially along the length direction of the gypsum board core 10, and the second facing layer 22 is adhered circumferentially along the width direction of the gypsum board core 10.
By the above-described means, the gap of the one of the first and second facing papers 21 and 22 located on the outer side can be covered by the one of the facing papers located on the inner side, and the gypsum board is prevented from contacting the waterproof air layer 30, resulting in a decrease in the water blocking performance of the waterproof air layer 30.
The first facing 21 and the second facing 22 are generally connected by gluing, and the first facing may be disposed inside the second facing 22 or outside the second facing 22, and in some embodiments of the present utility model, the first facing 21 is water-absorbing, the second facing 22 is water-resistant, the first facing 21 completely covers the gypsum board core 10, and the second facing 22 completely covers the first facing 21.
The first facing sheet 21 thus contacting the gypsum has a certain water absorption, which gives a good bond between the gypsum and the facing board, while the second facing sheet 22 has a certain water resistance, which prevents the gypsum board core 10 from getting wet.
In some embodiments of the present utility model, the thickness of the first facing sheet 21 is set to 0.15mm to 0.5mm; the thickness of the second facing 22 is set to 0.15mm to 0.5mm. The first facing sheet 21 may be set to the same thickness or may be set to different thicknesses, and the thicknesses of the first facing sheet 21 and the second facing sheet 22 may be set to 0.15mm, 0.2mm, 0.35mm, 0.37mm, 0.40mm, 0.41mm, 0.45mm, 0.5mm, etc., without being particularly limited thereto. Through above-mentioned scheme, can avoid the too big thickness of face guard paper, the higher problem of materials cost.
In some embodiments of the present utility model, the facing paper layer 20 has a roughness that is greater on the side of the gypsum board core 10 than on the side of the facing paper facing away from the gypsum board core 10. In this way, in the production process of the gypsum board, the dihydrate gypsum crystals generated after the gypsum board is hydrated can well permeate into the fiber layer in the gypsum board facing paper layer 20, and the bonding strength of the dihydrate gypsum crystals and the fiber layer is greatly improved.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A waterproof paper faced gypsum board, comprising:
A gypsum board core;
a facing paper layer adhered to each surface of the gypsum board core;
the waterproof air layer is arranged on the surface of the facing paper layer, which is away from the gypsum board core; and
The waterproof layer is arranged on the surface of the waterproof air layer, which is away from the waterproof air layer.
2. The waterproof paper-faced gypsum board of claim 1, wherein the waterproof air layer is formed from polyvinylidene chloride.
3. The waterproof paper-faced gypsum board of claim 2, wherein the waterproof air layer is provided at a thickness of 30 μm to 300 μm.
4. The waterproof paper-faced gypsum board of claim 1, wherein the material of the waterproof layer is provided as polyurea.
5. The waterproof paper-faced gypsum board of claim 4, wherein the waterproof layer is provided at a thickness of 200 μm to 1000 μm.
6. The waterproof paper-faced gypsum board of claim 1, wherein the gypsum board has a thickness of from 9.5mm to 25mm.
7. The waterproof paper facer gypsum board of any one of claims 1 to 6, wherein the facer paper layer comprises a first facer paper affixed to a surface of the gypsum board core and a second facer paper affixed to a surface of the first facer paper facing away from the gypsum board core, the first facer paper being affixed circumferentially along a length of the gypsum board core, the second facer paper being affixed circumferentially along a width of the gypsum board core.
8. The waterproof paper faced gypsum board of claim 7, wherein the thickness of the first facing paper is set from 0.15mm to 0.5mm;
And/or the thickness of the second facing paper is set to be 0.15mm to 0.5mm.
9. The water resistant paper faced gypsum board of claim 7, wherein said first facing paper is a water absorbing paper, said second facing paper is a water resistant paper, said first facing board completely covers said gypsum board core, and said second facing board completely covers said first facing board.
10. The water resistant paper faced gypsum board of any one of claims 1 to 6, wherein the facing paper layer has a roughness on a side thereof that conforms to the gypsum board core that is greater than a roughness of a side thereof that faces away from the gypsum board core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311000.0U CN220868468U (en) | 2023-08-25 | 2023-08-25 | Waterproof paper surface gypsum board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322311000.0U CN220868468U (en) | 2023-08-25 | 2023-08-25 | Waterproof paper surface gypsum board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220868468U true CN220868468U (en) | 2024-04-30 |
Family
ID=90820594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322311000.0U Active CN220868468U (en) | 2023-08-25 | 2023-08-25 | Waterproof paper surface gypsum board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220868468U (en) |
-
2023
- 2023-08-25 CN CN202322311000.0U patent/CN220868468U/en active Active
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