Edge-reinforced anti-cracking glass fiber reinforced plastic gel coat plate and processing method thereof

Abstract

The invention relates to an edge-reinforced anti-cracking glass fiber reinforced plastic gel coat plate and a processing method thereof, and relates to the field of glass fiber reinforced composite materials. The edge-reinforced anti-cracking glass fiber reinforced plastic gel coat plate comprises a base body layer and a gel coat layer, the gel coat layer is fixed on the base body layer, and the edge of the gel coat layer is infiltrated with fiber strips to form an anti-cracking edge. The processing method comprises the following steps: step 1, conveying the bearing film; step 2, blade coating of a gel coat layer is carried out on the bearing film; step 3, flatly laying fiber strips on the gel coat layer, and infiltrating and fusing the fiber strips and the gel coat layer; step 4, performing gel forming on the gel coat layer, and forming an anti-crack edge at the fusion part of the fiber strip and the gel coat layer; and step 5, adding a matrix layer on the gel coat layer and the anti-crack edge in the step 4. The gel coat plate has the effect of preventing the gel coat layer of the gel coat plate from cracking, and meanwhile, the influence of addition of fiber materials on the appearance of the gel coat layer is reduced.

Description

Technical Field

[0001] The present application relates to the field of glass fiber reinforced composite materials, and in particular to an edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated plate and a processing method thereof. Background Art

[0002] FRP gel-coated panels are generally composed of an inner base layer and an outer gel-coat layer. The inner base layer is the core of the panel, and its main component is a resin impregnated with reinforcing fibers such as glass fiber. The outer gel-coat layer provides a protective layer for the base layer to improve the weather resistance, corrosion resistance and wear resistance of the product; secondly, it gives the product patterns and colors to enhance the aesthetics of the product. The gel-coat layer is usually a pure resin layer without fibers to ensure a smooth surface, uniform color, and good gloss.

[0003] In the related art, the resin used in the gel coat layer of the FRP sheet is a thermosetting resin. After the thermosetting resin is formed, it is relatively brittle, and the FRP gel coat sheet is prone to cracking during processing and use. The prior art usually uses technical means such as material component optimization, thickness control, and curing temperature control to reduce the probability of cracks. However, when the FRP gel coat sheet is subjected to bending stress, the outer gel coat layer is still prone to cracks. For example, when the FRP gel coat sheet is used as a decorative gel coat sheet, it needs to be pasted on the surface of the sheet or cabinet. During the pasting process, the FRP gel coat sheet is prone to bending. During this process, excessive bending of the FRP gel coat sheet can easily cause cracks in the outer gel coat layer, affecting its use and appearance.

[0004] In view of the above-mentioned related technologies, in order to further reduce the probability of cracks in the outer gel coat layer of the FRP gel coat plate, especially under bending stress conditions, the applicant has designed an edge-reinforced crack-resistant FRP gel coat plate and a processing method thereof. Summary of the invention

[0005] In the first aspect, the present application provides an edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated plate, which adopts the following technical solution: The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coat plate comprises a base layer and a gel-coat layer. The gel-coat layer is fixed on at least one surface of the base layer. The edge of the gel-coat layer is impregnated with fiber strips to form an anti-cracking edge.

[0006] By adopting the above technical solution, the edge of the gel coat layer and the fiber strips can better prevent the edge of the gel coat layer from cracking, and effectively prevent the gel coat layer of the gel coat board from cracking; at the same time, the edge of the FRP gel coat board is often at the structural splicing position, and the edge of the FRP gel coat board used in the final product will not be exposed, and the splicing position has lower requirements for aesthetics, weather resistance, corrosion resistance and wear resistance; setting an anti-cracking edge can prevent the fiber from affecting the decorative and practical effects of the FRP gel coat board, and can reduce costs, compared with the entire gel coat layer being infiltrated with fibers for anti-cracking. According to the needs of product use, the gel coat layer can be fixed on one or both sides of the base layer.

[0007] After research, the inventor found that the gel coat layer of FRP gel-coated board is prone to cracking when it is bent and stressed, while the fiber-reinforced matrix layer is not easy to crack. Furthermore, the inventor also found that the cracking of the gel coat layer of FRP gel-coated board generally starts from the very edge and gradually extends inward, so the edge of the gel coat layer is the most likely part to cause cracking. Most of the cracking of the gel coat layer occurs when the edge of the gel coat board is trimmed and cut. Since the gel coat layer is very brittle, the cutter microscopically cuts the edge surface of the gel coat layer of the board into small serrations; the fiber-reinforced layer in the infiltration area is not easy to form micro-serrations during the trimming process of the fixed width by the trimming knife, and the cut surface is smooth and neat at the microscopic level. In this way, when the gel coat board is bent, the edge of the fiber-reinforced layer is not damaged by the trimming knife, and it will not extend along the serrated damage surface to cause cracking; even if the edge of the fiber-reinforced layer is damaged, there is a tendency for the bending to extend and crack along the damaged surface of the fiber-reinforced layer, but the introduction of fibers inside the gel coat layer will also prevent the further extension of the cracks.

[0008] Optionally, the anti-cracking edge is arranged along the length direction of the gel coat layer, and two anti-cracking edges are arranged, and the two anti-cracking edges are respectively located at the two side edges of the gel coat layer in the length direction.

[0009] By adopting the above technical solution, the plate is mainly bent in the length direction when in use. Arranging two anti-cracking edges along the length direction of the gel coat plate can more effectively protect the long sides of the gel coat layer and prevent the gel coat layer from cracking.

[0010] Optionally, the anti-cracking edges are arranged perpendicular to the length direction of the gel coat layer, the anti-cracking edges are arranged at the edge and the middle of the gel coat layer, and at least three anti-cracking edges are arranged at intervals along the length direction of the gel coat layer.

[0011] By adopting the above technical solution, the FRP gel coat board is a continuously produced long thin sheet board, which needs to be cut according to the required size during subsequent use. In some application scenarios, the cutting length of the FRP gel coat board is determined in advance, and a transverse anti-cracking edge is set at the cutting position. Cutting on the anti-cracking edge can effectively avoid cracking of the edge of the gel coat layer or extension of the edge crack to the internal gel coat layer.

[0012] Optionally, the anti-cracking edge includes a long anti-cracking edge arranged along the length direction of the gel coat layer and a separating anti-cracking edge arranged perpendicular to the length direction of the gel coat layer; the long anti-cracking edge is arranged along the length direction of the gel coat layer, and two long anti-cracking edges are arranged, and the two long anti-cracking edges are respectively located at the two side edges of the length direction of the gel coat layer; the two ends of the separating anti-cracking edge are abutted against the two long anti-cracking edges, and multiple separating anti-cracking edges are arranged along the length direction of the gel coat layer.

[0013] By adopting the above technical solution, by adding a long anti-cracking edge and a separation anti-cracking edge, the gel coat layer of the gel coat board is fully protected, and the gel coat layer is better prevented from cracking. When the gel coat layer needs to be cut in the length direction, the separation anti-cracking edge position can be preset at the cutting position, and cutting from the separation anti-cracking edge can effectively prevent the gel coat layer from cracking.

[0014] Optionally, the width of the anti-crack edge is 1-100 mm.

[0015] By adopting the above technical solution, the width of the anti-crack edge can be adjusted according to the use requirements to adapt to a variety of different application scenarios. The anti-crack edge formed by the 1mm impregnated fiber strip on the edge of the gel coat layer can also play a significant anti-crack effect; it is necessary to avoid the setting of the anti-crack edge affecting the ornamental and decorative effects of the gel coat board, so a preferred design solution is that the maximum width of the anti-crack edge should not exceed 100mm.

[0016] Optionally, the anti-crack edge impregnated fiber strips are fiber felt.

[0017] By adopting the above technical solution, the surface of the FRP gel-coated board is smooth, and the addition of fiber strips has little effect on the appearance of the FRP gel-coated board. The fiber mat has good surface flatness, uniform fiber distribution, and a relatively smooth and flat surface, which can effectively cover up defects such as cloth grain, making the surface of the product smoother; the structural characteristics of the fiber mat allow the resin to penetrate quickly, thereby improving production efficiency, and can form a resin-rich layer between the fiber gaps to enhance the performance of the product; the fiber mat is soft in texture and can be applied to the surface of various complex-shaped products and molded products, and can fit the mold tightly to ensure the shape and size accuracy of the product. Therefore, the interference with the appearance of the gel-coated board will be relatively much smaller. For occasions with high requirements for appearance, fiber mat is a preferred material.

[0018] Optionally, the anti-crack edge impregnated fiber strips may also be any one of fiber felt, fiber cloth and fiber yarn or a combination thereof.

[0019] By adopting the above technical solution, other fiber materials and combinations thereof that can enhance the anti-cracking performance of the gel coat layer can be used to make anti-cracking edges, making it convenient to select materials reasonably according to different needs.

[0020] In a second aspect, the present application provides a method for processing the edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated plate, which adopts the following technical solution: A method for processing edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated plate, comprising: Step 1, transporting the carrier film; Step 2, applying a gel coat layer on the carrier film; Step 3, lay the fiber strips evenly on the gel coat layer, and allow the fiber strips to penetrate and blend with the gel coat layer; Step 4, the gel coat layer is gel-formed, and the fiber strips and the gel coat layer are fused to form an anti-cracking edge; Step 5, add the base layer on top of the gel coat layer and anti-cracking edge from step 4.

[0021] By adopting the above technical scheme, fiber strips are added to be compatible with the gel coat layer before the gel coat layer is gelled. After the gel coat layer is solidified, an anti-cracking edge will be formed on the gel coat layer. The anti-cracking edge can effectively protect the edge of the gel coat layer, prevent the edge of the gel coat layer from cracking, and then prevent the entire gel coat layer from cracking. In the gel coat board prepared by this process, fiber strips are arranged on the edge of the gel coat layer. The edge of the gel coat layer (the edge of the gel coat board) is generally at the joint of the structure and will be blocked, and the fiber strips have little effect on the aesthetics.

[0022] Optionally, in step 3, the fiber strips and the gel coat layer are infiltrated by natural infiltration.

[0023] By adopting the above technical solution, the fiber strips are placed on the unsolidified gel coat layer. Under the action of the fiber strips' own gravity and the natural spreading of the liquid gel coat, the fiber strips and the liquid gel coat are infiltrated and blended. The method is simple, does not require additional mechanisms, and reduces the complexity of the equipment. The structural characteristics of the fiber felt allow the resin to penetrate quickly, thereby improving production efficiency, and can form a resin-rich layer between the fiber gaps, thereby enhancing the performance of the product.

[0024] Optionally, in step 3, the fiber strips and the gel coat layer are impregnated by pressurized impregnation.

[0025] By adopting the above technical solution and applying pressure to the fiber strips and the gel coat layer using a pressure roller, the wetting process of both can be accelerated, thereby improving production efficiency.

[0026] Optionally, the anti-cracking edge includes a long anti-cracking edge arranged along the length direction of the gel coat layer and a separating anti-cracking edge arranged perpendicular to the length direction of the gel coat layer; in step 3, the fiber strips corresponding to the long anti-cracking edge are continuously laid along the length direction of the gel coat layer, and the fiber strips corresponding to the separating anti-cracking edge are arranged between two long anti-cracking edges and overlap with the fiber strips corresponding to the long anti-cracking edges.

[0027] By adopting the above technical solution, a long anti-cracking edge and a separated anti-cracking edge are simultaneously provided on the gel coat layer, so that the gel coat layer is more comprehensively protected and the edge cracking of the gel coat layer is more effectively prevented.

[0028] Optionally, in step 3, the width of the fiber strip is greater than a preset long anti-cracking edge width.

[0029] By adopting the above technical solution, the width of the fiber strip is greater than the preset long anti-crack edge width, and a certain cutting margin is reserved so that a more precise size board can be obtained through later cutting, thereby reducing the position accuracy requirements when placing the fiber strip and reducing the processing difficulty.

[0030] Optionally, the method further comprises step 6, laying an upper film with a gel coat layer on top of the base layer in step 5, wherein the gel coat layer of the upper film is in direct contact with the base layer; the upper film with the gel coat layer is prepared by the method of steps 1-4.

[0031] By adopting the above technical solution, a gel coat board with gel coat layers arranged on both sides of the base layer is prepared.

[0032] In summary, the present application includes at least one of the following beneficial technical effects: 1. It effectively prevents the cracking and spreading of the edge of the gel coat layer of the gel coat board. At the same time, the edge of the FRP gel coat board is often at the structural splicing position. The edge of the FRP gel coat board will not be exposed in the final product, and the requirements for aesthetics, weather resistance, corrosion resistance and wear resistance are also low.

[0033] 2. By adding anti-cracking edges perpendicular to the length direction of the base layer, the width direction of the gel coat board is also protected to better prevent the gel coat layer from cracking. The setting spacing of the anti-cracking edges can also be set according to the size of the gel coat board to separate the anti-cracking edges as cutting positions, which is convenient for cutting and can prevent the gel coat layer from cracking.

[0034] 3. The fiber strips in the anti-crack edge are made of fiber felt. The fiber felt has a good surface finish and will have relatively little interference with the appearance of the gel coat board. For occasions with high requirements on appearance, fiber felt is a preferred material.

[0035] 4. Long anti-crack edges and separated anti-crack edges are set on the gel coat layer at the same time to protect the entire outer circle of the FRP gel coat plate and better prevent cracking at the edge of the gel coat layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application; Figure 2 yes Figure 1 AA structural cross-sectional view; Figure 3 yes Figure 2A schematic diagram of the structure from a top-down angle; Figure 4 It is a schematic diagram of the overall structure of Example 2 of the present application; Figure 5 It is a schematic diagram of the overall structure of Example 3 of the present application; Figure 6 It is a schematic diagram of the overall structure of Example 4 of the present application.

[0037] Reference numerals: 1, base layer; 2, gel coat layer; 3, anti-cracking edge; 31, long anti-cracking edge; 32, separating anti-cracking edge. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-6 This application is described in further detail.

[0039] Example 1 An edge-reinforced, crack-resistant glass fiber reinforced plastic gel-coated board, Figure 1 and Figure 2 , including a base layer 1, a gel coat layer 2 and an anti-cracking edge 3; the gel coat layer 2 is covered and fixed on the base layer 1.

[0040] The anti-crack edge 3 is an anti-crack structure formed by the infiltration and fusion of fiber strips in the gel coat layer 2. Figure 2 and Figure 3 The anti-cracking edge 3 is arranged along the length direction of the gel coat layer 2 , and two anti-cracking edges 3 are arranged, and the two anti-cracking edges 3 are respectively located at the two side edges of the gel coat layer 2 in the length direction.

[0041] In this embodiment, the width of the anti-crack edge 3 is set to 50mm, and the anti-crack edge 3 is made of fiber felt, which has a smoother surface and better aesthetics. The anti-crack edge 3 is set at the edge of the glass fiber reinforced plastic gel coat board, which is generally the structural joint position of the board and will be covered by other connecting parts. In most application scenarios, the anti-crack edge 3 has little effect on the appearance of the board.

[0042] The anti-crack edge 3 fiber can also be any one of fiber felt, fiber cloth and fiber yarn or a combination thereof.

[0043] It should be noted that the present invention does not limit the type of fibers introduced into the gel coat layer 2 , and the fiber strips may be any one of glass fibers, basalt fibers and plastic fibers, or any combination of different fiber types.

[0044] The implementation principle of the edge-reinforced anti-cracking FRP gel coat board disclosed in the embodiment of the present application is as follows: the inventors have found through research that the gel coat layer 2 of the FRP gel coat board is prone to cracking when subjected to bending stress, while the fiber-reinforced matrix layer 1 is not prone to cracking; further, the inventors have also found that the cracking of the gel coat layer 2 of the FRP gel coat board generally starts from the very edge and gradually extends inward, so the edge of the gel coat layer 2 is the part that is most likely to cause cracking. Most of the cracks in gel coat layer 2 occur when the edges of gel coat board are trimmed and cut. Since gel coat layer 2 is very brittle, the cutter cuts the edge of gel coat layer 2 of the board into small serrations at the micro level. During the trimming process of the fiber reinforced layer in the infiltrated area with the trimming knife, the edge of the fiber strip reinforced layer is not easy to form micro serrations, and the cut surface is smooth and neat at the micro level. In this way, when the gel coat board is bent, the edge of the fiber reinforced layer is not damaged by the trimming knife, and will not extend along the serrated damage surface to cause cracks. Even if the edge of the fiber reinforced layer is damaged, there is a tendency for the bending to extend and crack along the damaged surface of the fiber reinforced layer, but the introduction of fibers into the gel coat layer 2 will also prevent the further extension of the cracks. The infiltration of the edge of gel coat layer 2 and the fiber strips can better prevent the edge of gel coat layer 2 from cracking, and effectively prevent the gel coat layer 2 of the gel coat board from cracking.

[0045] At the same time, the edge of the FRP gel-coated board is often at the structural splicing position. The edge of the FRP gel-coated board will not be exposed when used in the final product, and the splicing position has lower requirements for aesthetics, weather resistance, corrosion resistance and wear resistance. Therefore, the setting of the anti-crack edge 3 will basically not affect the decoration and practical effects of the FRP gel-coated board.

[0046] A processing method for the above-mentioned edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated plate comprises: Step 1: Carrier film delivery. The carrier film passes through the flattening wheel, adjusts the tension at both ends, and is laid evenly and smoothly on the production line to become a carrier mold. The carrier film is made of PET polyester film.

[0047] Step 2: Scrape-coat the gel coat layer 2 on the carrier film. Scrape-coat the gel coat evenly on the carrier film using a scraping device.

[0048] Step 3, lay the fiber strips evenly on the gel coat layer 2, and let the fiber strips and the gel coat layer 2 soak and blend. At the workstation behind the coating equipment, a material roller with the fiber strips wound around it is set, and two material rollers are set on both sides of the gel coat layer 2; a pair of motor-driven feed rollers are set between the material rollers and the carrier film, and the fiber strips are clamped and fixed between the feed rollers. The motor drives the feed rollers to rotate and cooperate with the movement of the gel coat layer 2 to continuously feed the fiber strips, and the fiber strips and the liquid gel coat layer 2 gradually soak and blend as they move.

[0049] A pressure roller may also be added to the production line to apply pressure to the fiber strips to speed up the wetting efficiency of the fiber strips and the gel coat layer 2 .

[0050] Step 4, gel coat 2 is gelled and the fiber strips and gel coat 2 are fused to form anti-crack edges 3. After the gel coat 2 and the fiber strips are fully infiltrated, they are heated in an electric heating oven to accelerate the gelling to a semi-cured state; the semi-cured state is preferably: when a finger touches the gel coat 2, the gel coat 2 feels sticky but the gel coat does not stick to the finger.

[0051] Step 5, adding a base layer 1 on the gel coat layer 2 and the anti-crack edge 3 of step 4. Continue to scrape resin on the gel coat layer 2 and the anti-crack edge 3 of step 4; and lay and infiltrate glass fiber on the scraped resin. It should be noted that the present invention does not limit the specific structure of the base layer 1, including the number of layers, fiber type, etc.

[0052] Step 6, lay the upper film on the resin that has been soaked in the glass fiber in step 5. The upper film is conveyed by the flattening wheel and the precision roller, and the tension at both ends of the upper film is adjusted, and it is evenly and evenly laid on the surface of the resin soaked glass fiber base layer to seal and remove bubbles; the upper film is also a PET polyester film.

[0053] Step 7, heating and molding, heating in oven.

[0054] Step 8: Cool and cut.

[0055] Step 9, packaging.

[0056] Example 2 The difference between this embodiment and embodiment 1 is that: Figure 4 The anti-cracking edges 3 are arranged perpendicular to the length direction of the base layer 1 , the anti-cracking edges 3 are arranged at the edge and the middle of the gel coat layer 2 , and at least three anti-cracking edges 3 are arranged at intervals along the length direction of the gel coat layer 2 .

[0057] The processing method of this embodiment differs from that of embodiment 1 in steps 3 and 8: Step 3 of this embodiment is to lay the fiber strips evenly on the gel coat layer 2, and allow the fiber strips to be infiltrated and blended with the gel coat layer 2. At the workstation behind the coating equipment, a robot is set to place the fiber strips, and the fiber strips are cut into sections in advance, and the fiber strips are placed perpendicular to the feeding direction of the gel coat layer 2; the length of the fiber strips is at least 100 mm larger than the width of the gel coat layer 2, and the robot clamps the two ends of the fiber strips and places the fiber strips on the gel coat layer 2, and the fiber strips and the liquid gel coat layer 2 gradually infiltrate and blend as they move. Step 8 of this embodiment is to cut and remove excess fiber strips during cooling and cutting.

[0058] Example 3 The difference between this embodiment and embodiment 1 is that: Figure 5The anti-crack edge 3 includes a long anti-crack edge 31 arranged along the length direction of the gel coat layer 2 and a separating anti-crack edge 32 arranged perpendicular to the length direction of the base layer 1; the long anti-crack edge 31 is arranged along the length direction of the gel coat layer 2, and there are two long anti-crack edges 31, which are respectively located at the two side edges of the length direction of the gel coat layer 2; the two ends of the separating anti-crack edge 32 are abutted against the two long anti-crack edges 31, and there are multiple separating anti-crack edges 32 along the length direction of the gel coat layer 2.

[0059] The difference between the processing method of this embodiment and that of embodiment 1 lies in step 3: step 3 of this embodiment is to lay the fiber strips evenly on the gel coat layer 2, and let the fiber strips and the gel coat layer 2 be infiltrated and blended. At the workstation behind the scraping equipment, a material roller wound with fiber strips is provided, and the material roller is a roller whose length is greater than the width of the gel coat layer 2; corresponding to the long anti-cracking edge 31 and the separating anti-cracking edge 32, the fiber strips are provided with long fiber strips continuously arranged along the feeding direction of the gel coat layer 2 and separating fiber strips arranged along the width direction of the gel coat layer 2, the separating fiber strips are arranged between two long fiber strips, the ends of the separating fiber strips are overlapped with the long fiber strips and glued and fixed, and a plurality of separating fiber strips are arranged equidistantly along the length direction of the long fiber strips; a pair of feeding rollers driven by a motor are provided between the material roller and the carrier film, the fiber strips are clamped and fixed between the feeding rollers, and the motor drives the feeding rollers to rotate to cooperate with the movement of the gel coat layer 2 to continuously feed the fiber strips, and the fiber strips and the liquid gel coat layer 2 are gradually infiltrated and fused as they move.

[0060] Example 4 The difference between this embodiment and embodiment 1 is that: Figure 6 , gel coat layers 2 with anti-cracking edges 3 are provided on both sides of the base layer 1.

[0061] The processing method of this embodiment differs from that of embodiment 1 in step 6: step 6 of this embodiment includes pre-laying a gel coat layer 2 on the upper film; repeating steps 1-4, replacing the carrier film in steps 1-4 with the upper film, and obtaining the upper film with the gel coat layer 2.

[0062] Then, the upper film with gel coat layer 2 is laid on the resin that has been impregnated with the glass fiber in step 5. The upper film with gel coat layer 2 is conveyed by the flattening wheel and the precision roller, and the upper film is bent 360 degrees with the gel coat layer 2 facing downward, and then the upper film with gel coat layer 2 is evenly and evenly laid on the surface of the resin impregnated glass fiber base layer to seal and remove bubbles.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board, comprising a base layer (1) and a gel-coated layer (2), wherein the gel-coated layer (2) is fixed on the base layer (1), and is characterized in that: The gel coat layer (2) is fixed on at least one surface of the base layer (1), and the edge of the gel coat layer (2) is impregnated with fiber strips to form an anti-cracking edge (3).

2. The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 1, characterized in that: The anti-cracking edges (3) are arranged along the length direction of the gel coat layer (2), and two anti-cracking edges (3) are arranged, and the two anti-cracking edges (3) are respectively located at the two side edges of the gel coat layer (2) in the length direction.

3. The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 1, characterized in that: The anti-cracking edges (3) are arranged perpendicular to the length direction of the gel coat layer (2), the anti-cracking edges (3) are arranged at the edge and the middle of the gel coat layer (2), and at least three anti-cracking edges (3) are arranged at intervals along the length direction of the gel coat layer (2).

4. The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 1, characterized in that: The anti-crack edge (3) comprises a long anti-crack edge (31) arranged along the length direction of the gel coat layer (2) and a separation anti-crack edge (32) arranged perpendicular to the length direction of the gel coat layer (2); the long anti-crack edge (31) is arranged along the length direction of the gel coat layer (2), and two long anti-crack edges (31) are arranged, and the two long anti-crack edges (31) are respectively located at the two side edges of the length direction of the gel coat layer (2); the two ends of the separation anti-crack edge (32) are in contact with the two long anti-crack edges (31), and a plurality of separation anti-crack edges (32) are arranged along the length direction of the gel coat layer (2).

5. The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to any one of claims 1 to 4, characterized in that: The width of the anti-crack edge (3) is 1-100 mm.

6. The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to any one of claims 1 to 4, characterized in that: The fiber strips impregnated with the anti-crack edge (3) are made of fiber felt.

7. The edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 6, characterized in that: The fiber strips impregnated with the anti-crack edge (3) may also be any one of fiber felt, fiber cloth and fiber yarn or a combination thereof.

8. A method for processing the edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: step 1, conveying a carrier film; step 2, applying a gel coat layer (2) on the carrier film; step 3, evenly laying fiber strips on the gel coat layer (2) to allow the fiber strips to be infiltrated and fused with the gel coat layer (2); step 4, gelling the gel coat layer (2) to form an anti-cracking edge (3) at the fusion portion between the fiber strips and the gel coat layer (2); and step 5, adding a base layer (1) on the gel coat layer (2) and the anti-cracking edge (3) in step 4.

9. The method for processing edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 8, characterized in that: In step 3, the fiber strips and the gel coat layer (2) are infiltrated by natural infiltration.

10. The method for processing edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 8, characterized in that: In step 3, the fiber strips and the gel coat layer (2) are impregnated by pressure impregnation.

11. The method for processing edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 8, characterized in that: The anti-cracking edge (3) comprises a long anti-cracking edge (31) arranged along the length direction of the gel coat layer (2) and a separating anti-cracking edge (32) arranged perpendicular to the length direction of the gel coat layer (2); in step 3, the fiber strips corresponding to the long anti-cracking edge (31) are continuously laid along the length direction of the gel coat layer (2), and the fiber strips corresponding to the separating anti-cracking edge (32) are arranged between the two long anti-cracking edges (31) and overlap with the fiber strips corresponding to the long anti-cracking edge (31).

12. The method for processing edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 11, characterized in that: In step 3, the width of the fiber strip is greater than the preset width of the long anti-cracking edge (31).

13. The method for processing edge-reinforced anti-cracking glass fiber reinforced plastic gel-coated board according to claim 8, characterized in that: The method further comprises step 6, wherein an upper film with a gel coat layer (2) is laid on the base layer (1) of step 5, wherein the gel coat layer (2) of the upper film is in direct contact with the base layer (1); the upper film with a gel coat layer (2) is prepared by the method of steps 1 to 4.

Images