Preparation process of ultraviolet-resistant epoxy resin plate

Abstract

The application discloses a kind of preparation processes of epoxy resin plate of ultraviolet resistance, comprising the following steps: the configuration of inner layer resin material: using epoxy resin and the first ultraviolet resistant filler configuration inner layer resin material;Substrate production: using inner layer resin material in mold carries out the prefabrication of substrate, and the side or both sides of substrate is attached to multilayer aluminized fiber web;The configuration of surface layer resin material: using epoxy resin and the second ultraviolet resistant filler configuration surface layer resin material;Surface layer preparation: first coating a layer of inner layer resin material on the outside of multilayer aluminized fiber web, then coating surface layer resin material, after scraping flat, the solidification forming of surface layer is carried out.By the above manner, the preparation process of epoxy resin plate of ultraviolet resistance of the application adopts the technical scheme of three-dimensional ultraviolet resistance, reflects ultraviolet, gradually improves the effect of ultraviolet resistance, prolongs life.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of epoxy resin plate, in particular to a kind of preparation process of epoxy resin plate resistant to ultraviolet. BACKGROUND

[0002] Epoxy resin plate has good insulation, high chemical stability, and is widely used in ship, chemical industry, storage container and other fields.

[0003] When used outdoors, epoxy resin plate will be irradiated by ultraviolet light, and long-term ultraviolet irradiation will cause discoloration and accelerated aging of epoxy resin plate, affecting the structural strength and service life of epoxy resin plate. In the prior art, the modification of epoxy resin is usually carried out by adding ultraviolet absorber, but the service life of ultraviolet absorber is also limited, and many ultraviolet absorbers lose their anti-ultraviolet protection of epoxy resin after 2-3 years of use, which needs to be improved. SUMMARY

[0004] The technical problem solved by the present application is to provide a preparation process of epoxy resin plate resistant to ultraviolet, to produce epoxy resin plate and improve the ultraviolet resistance and service life of epoxy resin plate.

[0005] To solve the above technical problems, one technical solution adopted by the present application is to provide a preparation process of epoxy resin plate resistant to ultraviolet, comprising the following steps:

[0006] Configuration of inner layer resin material: the inner layer resin material is configured by epoxy resin and first ultraviolet-resistant filler, and in the inner layer resin material, the weight fraction of the first ultraviolet-resistant filler is 3.5-4.5 parts, and the weight fraction of the epoxy resin is 95.5-96.5 parts;

[0007] Production of substrate: the substrate is prefabricated in the mold using the inner layer resin material, and a plurality of aluminized fiber meshes are attached to one side or both sides of the substrate;

[0008] Configuration of surface layer resin material: the surface layer resin material is configured by epoxy resin and second ultraviolet-resistant filler, and in the surface layer resin material, the weight fraction of the second ultraviolet-resistant filler is 1-2 parts, and the weight fraction of the epoxy resin is 98-99 parts;

[0009] Preparation of surface layer: first coat a layer of inner layer resin material on the outer side of the plurality of aluminized fiber meshes, then coat the surface layer resin material, and then cure and form the surface layer after scraping.

[0010] In a preferred embodiment of the present application, the first ultraviolet-resistant filler and the second ultraviolet-resistant filler each comprise nano-TiO2.

[0011] In a preferred embodiment of the present application, the multi-layer aluminized fiber mesh includes a first aluminized glass fiber mesh and a second aluminized glass fiber mesh, the first aluminized glass fiber mesh is attached to one side or both sides of the substrate, and a layer of inner resin material is coated on the outer side of the first aluminized glass fiber mesh, and then the second aluminized glass fiber mesh is attached.

[0012] In a preferred embodiment of the present application, the mesh openings in the first aluminized glass fiber mesh and the second aluminized glass fiber mesh are staggered.

[0013] In a preferred embodiment of the present application, the thickness of the surface layer is 10% to 20% of the thickness of the substrate.

[0014] In a preferred embodiment of the present application, the third aluminized glass fiber mesh is embedded in the surface layer.

[0015] In a preferred embodiment of the present application, the construction step of the coating layer is further included, and a layer of UV-resistant coating is coated on the outer side of the surface layer.

[0016] The present application has the following advantages: the preparation process of the UV-resistant epoxy resin plate disclosed by the present application adopts a three-dimensional UV-resistant technical solution, first resists UV through the outermost UV-resistant coating, and then resists UV through the third aluminized glass fiber mesh and the second UV-resistant filler in the surface layer when the UV-resistant coating is worn out or fails, ensures the distribution effect and surface hardness in the surface layer through the second UV-resistant filler with low specific gravity, reflects UV through the third aluminized glass fiber mesh to reduce the adverse effects on the substrate, ensures the UV-resistant effect and impact resistance through the first UV-resistant filler with high specific gravity in the substrate, and further prolongs the service life of the substrate through the UV reflection and protection of the first aluminized glass fiber mesh and the second aluminized glass fiber mesh on the outer side of the substrate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please note that the embodiments of the present application include:

[0019] Embodiment 1:

[0020] A preparation process of a UV-resistant epoxy resin plate includes the following steps:

[0021] The inner layer resin material is configured by using epoxy resin and a first ultraviolet resistant filler. In this embodiment, the first ultraviolet resistant filler is nano-sized TiO2, and the weight percentage of the first ultraviolet resistant filler is 3.5 parts, and the weight percentage of the epoxy resin is 96.5 parts.

[0022] The substrate is prefabricated in a mold using the inner layer resin material. The first ultraviolet resistant filler with a large specific gravity ensures the ultraviolet resistant effect and impact resistance. A multi-layer aluminum-coated fiber mesh is attached to one side or both sides of the substrate. The multi-layer aluminum-coated fiber mesh can shield electromagnetic signals and improve anti-interference effect.

[0023] In this embodiment, the multi-layer aluminum-coated fiber mesh includes a first aluminum-coated glass fiber mesh and a second aluminum-coated glass fiber mesh. The first aluminum-coated glass fiber mesh is attached to one side or both sides of the substrate. An inner layer resin material is coated on the outer side of the first aluminum-coated glass fiber mesh, and then the second aluminum-coated glass fiber mesh is attached. The structure is stable.

[0024] In addition, in order to improve the reflection effect of ultraviolet rays and ensure the structural strength, the mesh holes in the first and second aluminum-coated glass fiber meshes are staggered to reduce the problem of light transmission. Moreover, the aluminum-coated glass fiber can reflect ultraviolet rays, further reducing the transmission of ultraviolet rays to the substrate.

[0025] The surface layer resin material is configured by using epoxy resin and a second ultraviolet resistant filler. In this embodiment, the second ultraviolet resistant filler is nano-sized TiO2, and the weight percentage of the second ultraviolet resistant filler is 1 part, and the weight percentage of the epoxy resin is 99 parts. The second ultraviolet resistant filler with a low specific gravity ensures the distribution effect in the surface layer and the surface hardness, improving the wear resistance.

[0026] The surface layer is prepared by first coating an inner layer resin material on the outer side of the multi-layer aluminum-coated fiber mesh, and then coating a surface layer resin material. After scraping, the surface layer is cured and formed. In this embodiment, the thickness of the surface layer is 20% of the thickness of the substrate, which is more wear-resistant. The third aluminum-coated glass fiber mesh is embedded in the surface layer, which strengthens the surface layer structure and reflects ultraviolet rays, reducing the inward transmission of ultraviolet rays.

[0027] Embodiment 2:

[0028] A preparation process of an ultraviolet resistant epoxy resin plate material, comprising the following steps:

[0029] The inner layer resin material is configured by using epoxy resin and the first ultraviolet resistant filler, and in the inner layer resin material, in this embodiment, the first ultraviolet resistant filler is nano TiO2, and the weight of the first ultraviolet resistant filler is 4.5 parts, and the weight of the epoxy resin is 95.5 parts;

[0030] The substrate is produced by using the inner layer resin material in the mold, and the multi-layer aluminum-coated fiber mesh is attached to one side or both sides of the substrate, and the substrate can adopt a planar structure or a curved surface structure, and is widely applicable;

[0031] In this embodiment, the multi-layer aluminum-coated fiber mesh includes a first aluminum-coated glass fiber mesh and a second aluminum-coated glass fiber mesh, the first aluminum-coated glass fiber mesh is attached to one side or both sides of the substrate, a layer of inner layer resin material is coated on the outer side of the first aluminum-coated glass fiber mesh, and then the second aluminum-coated glass fiber mesh is attached, and the structure is stable;

[0032] Meanwhile, in order to improve the reflection effect of ultraviolet rays and ensure the structural strength, the mesh holes in the first aluminum-coated glass fiber mesh and the second aluminum-coated glass fiber mesh are staggered, the reflection and shading effects are good, and the signal shielding effect is further improved;

[0033] The surface layer resin material is configured by using epoxy resin and the second ultraviolet resistant filler, and in the surface layer resin material, in this embodiment, the second ultraviolet resistant filler is nano TiO2, the weight of the second ultraviolet resistant filler is 2 parts, and the weight of the epoxy resin is 98 parts, the nano TiO2 has stable structure, good ultraviolet resistant effect, and long service life;

[0034] The surface layer is prepared by first coating a layer of inner layer resin material on the outer side of the multi-layer aluminum-coated fiber mesh, then coating the surface layer resin material, and then curing and forming the surface layer after scraping, and in this embodiment, the thickness of the surface layer is 10% of the thickness of the substrate, thereby reducing the thickness and self-weight of the plate;

[0035] The coating is constructed by coating a layer of UV anti-ultraviolet coating on the outer side of the surface layer, thereby improving the anti-ultraviolet effect of the surface, and the UV anti-ultraviolet coating should be avoided from being rubbed as much as possible.

[0036] In summary, the preparation process of the ultraviolet resistant epoxy resin plate material gradually improves the ultraviolet resistant performance and service life by using the multi-layer composite technical solution, and is particularly suitable for outdoor use.

[0037] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields by using the content of the present application, is also included in the patent protection range of the present application.

Claims

1. A process for preparing UV-resistant epoxy resin boards, characterized in that, Includes the following steps: The inner layer resin material is prepared by using epoxy resin and a first UV-resistant filler. In the inner layer resin material, the first UV-resistant filler accounts for 3.5 to 4.5 parts by weight, and the epoxy resin accounts for 95.5 to 96.5 parts by weight. Substrate production: The substrate is prefabricated in a mold using an inner layer resin material, and multiple layers of aluminum-plated fiber mesh are attached to one or both sides of the substrate. Formulation of surface layer resin: The surface layer resin is formulated with epoxy resin and a second UV-resistant filler, wherein the second UV-resistant filler accounts for 1 to 2 parts by weight and the epoxy resin accounts for 98 to 99 parts by weight. Preparation of the surface layer: First, an inner layer of resin material is coated on the outside of the multi-layer aluminum-coated fiber mesh, then the surface layer of resin material is coated, and after smoothing, the surface layer is cured and formed.

2. The process for preparing UV-resistant epoxy resin sheets according to claim 1, characterized in that, The first UV-resistant filler and the second UV-resistant filler each comprise nano-sized TiO2.

3. The process for preparing UV-resistant epoxy resin sheets according to claim 1, characterized in that, The multilayer aluminized fiber mesh includes a first aluminized glass fiber mesh and a second aluminized glass fiber mesh. The first aluminized glass fiber mesh is attached to one or both sides of the substrate. An inner layer of resin is coated on the outside of the first aluminized glass fiber mesh, and then the second aluminized glass fiber mesh is attached.

4. The process for preparing UV-resistant epoxy resin sheets according to claim 3, characterized in that, The mesh openings in the first aluminized glass fiber mesh and the second aluminized glass fiber mesh are interwoven.

5. The process for preparing UV-resistant epoxy resin sheets according to claim 1, characterized in that, The thickness of the surface layer is 10% to 20% of the substrate thickness.

6. The process for preparing UV-resistant epoxy resin sheets according to claim 1, characterized in that, A third aluminized glass fiber mesh is pre-embedded in the surface layer.

7. The process for preparing UV-resistant epoxy resin sheets according to claim 1, characterized in that, It also includes the coating application process, which involves applying a UV-protective coating to the outer side of the surface layer.