A coated abrasive for wall sanding

Abstract

The utility model relates to a coating abrasive tool technical field especially relates to a kind of coating abrasive tools for wall surface polishing.The coating abrasive tool from below to above sequentially includes matrix layer, bottom glue layer, abrasive layer and compound rubber layer, the matrix layer includes coating matrix layer and reinforcing matrix layer, the abrasive layer is diamond abrasive layer, gives coating abrasive tool high strength, not easy to break, abrasive hardness is high, sharp wear-resistant and other characteristics;The coating abrasive tool also includes composite glue layer and flannelette button layer, so it is light and safe, convenient to assemble and disassemble;The coating abrasive tool of the utility model can be responsible for cement mortar rough wall surface and the wall surface polishing after coating putty in house decoration process simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of coated abrasives technology, and in particular to a coated abrasive for wall sanding. Background Technology

[0002] Before applying putty, the wall surface needs to be pre-sanded to eliminate local bumps and achieve a smooth surface for subsequent putty application. Similarly, sanding is necessary after the putty has been applied to ensure optimal results. Traditional sanding tools are mostly only suitable for sanding putty after application, and are ineffective for sanding walls before putty application, especially those with poorly applied cement mortar, areas with many particles, or numerous bumps.

[0003] Traditional coated abrasives are mainly made of paper or cloth substrates, which have poor strength. They also use conventional alumina or silicon carbide abrasives, which makes the overall strength and hardness of the abrasives insufficient for sanding the aforementioned wall surfaces. During sanding, the substrate is easily broken, the abrasive is consumed too quickly, the sanding efficiency is low, and the service life is short. On the other hand, traditional diamond bonded abrasive products have complex manufacturing processes, high costs, and require relatively heavy equipment, making them inconvenient for sanding walls. Utility Model Content

[0004] In view of this, this utility model proposes a coated abrasive for wall sanding to solve the problem of low hardness of traditional coated abrasives.

[0005] The technical solution of this utility model is implemented as follows: This utility model provides a coated abrasive for wall sanding, which includes, from bottom to top, a base layer, a base coat, an abrasive layer and a top coat. The abrasive layer is a diamond abrasive layer, and the diamond abrasive layer is evenly laid between the base coat and the top coat.

[0006] Based on the above scheme, preferably, the material of the abrasive layer is RVD diamond abrasive, and the particle size of the RVD diamond abrasive is 50 / 60~200 / 230#.

[0007] Based on the above scheme, preferably, the substrate layer includes a coated substrate layer and a reinforcing substrate layer, the material of the coated substrate layer is PET film, the material of the reinforcing substrate layer is polyester fabric, and the reinforcing substrate layer is bonded to the coated substrate layer; the coated substrate layer is uniformly laid under the base adhesive layer.

[0008] Based on the above scheme, preferably, the thickness of the PET film is 80-120μm.

[0009] Based on the above scheme, preferably, the polyester fabric is a J-type or X-type pure polyester fabric.

[0010] Based on the above scheme, preferably, the reinforcing substrate layer is bonded to the coating substrate layer by an environmentally friendly water-based adhesive.

[0011] Based on the above scheme, preferably, the material of the primer layer is a modified polyurethane adhesive, and the primer layer is uniformly coated on the coating substrate layer.

[0012] Based on the above scheme, preferably, the material of the adhesive layer is modified phenolic resin, and the adhesive layer is uniformly coated on the abrasive layer.

[0013] Based on the above scheme, preferably, the coated abrasive also includes a flocked layer, the material of which is flocked cloth, and the flocked layer is uniformly bonded to the reinforcing substrate layer by a composite adhesive layer.

[0014] Based on the above scheme, preferably, the weight of the fleece fabric is 100~130g / m². 2 .

[0015] Based on the above scheme, preferably, the material of the composite adhesive layer is VAE latex.

[0016] Based on the above technical solutions, preferably, the material of the composite adhesive layer also contains an antistatic agent.

[0017] The coated abrasive tool for wall sanding of this invention has the following advantages over the prior art: (1) High-hardness diamond abrasive is used as the abrasive layer, which improves the hardness of the coated abrasive. At the same time, it has good self-sharpening properties and can maintain its sharpness. It has a good grinding and polishing effect on cement mortar walls of different grades. (2) By using a PET film with good flatness and a polyester cloth with high strength to form a composite matrix, the high-intensity grinding requirements are met, and the strength and service life of the grinding tool are improved. (2) The composite substrate and the flocked layer of the coated abrasive of this utility model are easy to cut and disassemble, and are convenient to use with corresponding tools. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the coated abrasive tool for wall sanding according to this utility model. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 As shown, the coated abrasive tool for wall sanding of this utility model comprises, from bottom to top, a substrate layer 1, a base adhesive layer 2, an abrasive layer 3, and a top adhesive layer 4. The substrate layer 1 includes a coated substrate layer 11 and a reinforcing substrate layer 12. The base adhesive layer 2 is uniformly coated on the coated substrate layer 11, the abrasive layer 3 is uniformly laid on the base adhesive layer 2, and the top adhesive layer 4 is uniformly coated on the abrasive layer 3. The coated abrasive tool also includes a flocked layer 6, which is uniformly bonded to the reinforcing substrate layer 12 by a composite adhesive layer 5.

[0022] In a specific embodiment, the material of the abrasive layer 3 is RVD diamond abrasive, and the RVD diamond abrasive is selected with a particle size of 50 / 60~200 / 230#.

[0023] Diamond abrasive has an irregular crystal shape, which allows it to bond better with the base coat and has better impact resistance. It also has good self-sharpening properties, which can keep it sharp and provide good grinding and polishing effects on cement mortar walls of different grades.

[0024] In a specific embodiment, the material of the coating substrate layer 11 is a PET film with a thickness of 80-120 μm. The PET film material has good heat resistance, high strength, wear resistance, and bending resistance, and also has excellent surface smoothness. The material of the reinforcing substrate layer 12 is pure polyester fabric, specifically J-type or X-type high-strength pure polyester fabric, which further improves the strength of the substrate, enabling it to maintain good strength and durability in various grinding applications. The reinforcing substrate layer 12 is uniformly bonded to the coating substrate layer 11 using an environmentally friendly water-based adhesive to form a composite substrate.

[0025] This composite matrix combines strength, flexibility, and flatness, making it suitable for both light and heavy grinding, as well as grinding materials of varying hardness. The substrate can be up to 1650mm wide, facilitating subsequent die-cutting into various sizes and specifications, and can be used with a variety of manual and power tools.

[0026] In a specific embodiment, the material of the base adhesive layer 2 is a modified polyurethane adhesive, specifically Dow Chemical's ISONATE™ M 342. In addition to good bonding with the substrate layer, it also exhibits excellent flexibility and impact resistance.

[0027] In a specific embodiment, the material of the adhesive layer 4 is a modified phenolic resin, specifically HEXIONEpikote 5003-W-55A from the United States. It is uniformly coated on the diamond abrasive grain layer and well bonded with the base adhesive, enhancing impact resistance, heat resistance, and wear resistance.

[0028] In a specific embodiment, the coated abrasive further includes a flocked layer 6, the material of which is flocked fabric with a basis weight of 100~130g / m². 2 The composite adhesive layer 5 is uniformly bonded to the reinforcing substrate layer 12. This facilitates subsequent cutting into various shapes and specifications (such as discs and strips) for use with corresponding manual electrical tools.

[0029] In a specific embodiment, the composite adhesive layer 5 is made of VAE latex, which facilitates the bonding of the substrate and the snap-on layer.

[0030] In a specific embodiment, the composite adhesive layer 5 also contains an antistatic agent, which gives the abrasive good anti-clogging properties and prevents the abrasive surface from clogging during the grinding process, thus affecting the grinding effect.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coated abrasive for wall sanding, comprising, from bottom to top, a substrate layer (1), a base coat layer (2), an abrasive layer (3), and a top coat layer (4), characterized in that: The abrasive layer (3) is a diamond abrasive layer, which is evenly laid between the base adhesive layer (2) and the top adhesive layer (4).

2. The coated abrasive for wall sanding as described in claim 1, characterized in that: The abrasive layer (3) is made of RVD diamond abrasive, and the particle size of the RVD diamond abrasive is 50 / 60~200 / 230#.

3. The coated abrasive for wall sanding as described in claim 1, characterized in that: The substrate layer (1) includes a coated substrate layer (11) and a reinforcing substrate layer (12). The material of the coated substrate layer (11) is PET film, and the material of the reinforcing substrate layer (12) is polyester fabric. The reinforcing substrate layer (12) is bonded to the coated substrate layer (11). The coated substrate layer (11) is evenly laid under the base adhesive layer (2).

4. The coated abrasive for wall sanding as described in claim 3, characterized in that: The thickness of the PET film is 80-120 μm.

5. The coated abrasive for wall sanding as described in claim 3, characterized in that: The polyester fabric is a J-type or X-type pure polyester fabric.

6. The coated abrasive for wall sanding as described in claim 3, characterized in that: The material of the base layer (2) is a modified polyurethane adhesive, and the base layer (2) is uniformly coated on the coating substrate layer (11).

7. The coated abrasive for wall sanding as described in claim 1, characterized in that: The material of the adhesive layer (4) is modified phenolic resin, and the adhesive layer (4) is uniformly coated on the abrasive layer (3).

8. The coated abrasive for wall sanding as described in claim 3, characterized in that: The coated abrasive also includes a snap-on layer (6), the snap-on layer (6) is made of snap-on cloth, and the snap-on layer (6) is uniformly bonded to the reinforcing substrate layer (12) by a composite adhesive layer (5).

9. The coated abrasive for wall sanding as described in claim 8, characterized in that: The fabric has a weight of 100-130 g / m². 2 .

10. The coated abrasive for wall sanding as described in claim 8, characterized in that: The material of the composite adhesive layer (5) is VAE latex.

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