High-flame-retardant anti-aging polypropylene composite board

Abstract

The utility model relates to the technical field of plates, in particular to a high-flame-retardant anti-aging polypropylene composite plate. According to the technical scheme, the composite board comprises a reinforcing inner layer, polypropylene board layers are fixedly connected to the two sides of the reinforcing inner layer, flame-retardant permeable layers are fixedly connected to the outer sides of the two polypropylene board layers, anti-aging coatings are arranged on the outer sides of the two flame-retardant permeable layers in a spraying mode, inner reinforcing pieces which are evenly distributed are fixed to the reinforcing inner layer, and the outer sides of the two polypropylene board layers are fixedly connected with flame-retardant permeable layers. And the internal reinforcer penetrates through the polypropylene plate layer and extends to the flame-retardant permeable layer. The anti-aging coating can prevent air from entering the composite board, so that the anti-aging effect is effectively achieved, meanwhile, the flame-retardant permeable layer can play a role in flame retardance, and the flame retardance of the composite board is improved; the firmness and the strength of the composite board can be improved through the arrangement of the inner reinforcer and the outer reinforcer, the composite board is prevented from being damaged, and the service life of the composite board is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of plates, in particular to a highly flame-retardant and aging-resistant polypropylene composite plate. Background Art

[0002] The Chinese utility model patent with authorization announcement number CN204869931U discloses "a polypropylene glass fiber composite board, including an intermediate core layer, an intermediate core layer, and a prepreg sheet hot-pressed on the upper surface and / or the lower surface. The prepreg sheet is made of multiple layers of polypropylene sheets with a melt index of 10 to 50 and several layers of glass fiber cloth with a grammage of 300 to 500 g / m2 stacked and pressed alternately. The intermediate core layer is a polypropylene sheet core material or a polypropylene honeycomb core material. The thickness of the polypropylene sheet core material is greater than that of the polypropylene sheet." The utility model selects suitable glass fiber cloth and polypropylene, has a better impregnation effect, and fully reflects the good physical properties of polypropylene and the mechanical property enhancement effect of glass fiber.

[0003] However, the composite board does not have the functions of flame retardancy and aging resistance, which makes its fire resistance low and its service life short. At the same time, the structure is not strong enough, resulting in low strength. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a polypropylene composite board with flame retardancy, aging resistance and high strength.

[0005] The technical solution of the utility model is: a highly flame-retardant and aging-resistant polypropylene composite board, comprising a reinforced inner layer, both sides of the reinforced inner layer are fixedly connected with polypropylene board layers, the outer sides of the two polypropylene board layers are fixedly connected with flame-retardant penetration layers, the outer sides of the two flame-retardant penetration layers are sprayed with anti-aging coatings, the reinforced inner layer is fixed with uniformly distributed internal reinforcements, and the internal reinforcements penetrate the polypropylene board layers and extend to the flame-retardant penetration layers.

[0006] Preferably, the outer sides of the reinforced inner layer, polypropylene board layer, flame retardant permeation layer and anti-aging coating are jointly provided with external reinforcements wrapping the four side edges, and the external reinforcements include a reinforced outer frame surrounding the four sides, and circular frames are fixed on both sides of the reinforced outer frame.

[0007] Preferably, the inner edge of the circular frame is provided with a chamfer.

[0008] Preferably, fixing sleeves are fixed to the four corners of the reinforced outer frame, and two ends of the fixing sleeves respectively penetrate the two circular frames.

[0009] Preferably, the internal reinforcement comprises a connecting rod fixed to the reinforced inner layer, the outer end of the connecting rod extends to the flame retardant permeable layer and is fixed with a locking block, and the locking block is embedded in the outer side of the flame retardant permeable layer.

[0010] Preferably, the polypropylene board layer is provided with a transversely arranged elongated mortise a, and the flame retardant permeable layer is fixed with a elongated tenon block a matching the elongated mortise a; the flame retardant permeable layer is provided with a transversely arranged elongated mortise b, and the polypropylene board layer is fixed with a elongated tenon block b matching the elongated mortise b.

[0011] Preferably, the thickness of the reinforced inner layer is 4-6 mm, the thickness of the polypropylene board layer is 3-4 mm, and the thickness of the flame-retardant permeation layer is 4-5 mm.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] 1. The anti-aging coating can prevent air from entering the interior of the composite board, thereby effectively preventing aging. At the same time, the setting of the flame retardant permeable layer can play a flame retardant effect and increase the flame retardancy of the composite board;

[0014] 2. The setting of internal reinforcement and external reinforcement can increase the reliability and strength of the composite panel to prevent the composite panel from being damaged and increase the service life of the composite panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A structural schematic diagram of an embodiment of the utility model is given;

[0016] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the AA direction;

[0017] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the outer reinforcement.

[0018] Figure numerals: 1 reinforced inner layer, 11 internal reinforcement, 111 connecting rod, 112 locking block, 2 polypropylene board layer, 21 long tenon block b, 3 flame retardant permeation layer, 31 long tenon block a, 4 anti-aging coating, 5 external reinforcement, 51 reinforced outer frame, 52 circular frame, 6 fixing sleeve. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1

[0021] like Figure 1-2As shown, the utility model proposes a highly flame-retardant and aging-resistant polypropylene composite board, comprising a reinforced inner layer 1, both sides of the reinforced inner layer 1 are fixedly connected with polypropylene board layers 2, the outer sides of the two polypropylene board layers 2 are fixedly connected with flame-retardant permeable layers 3, the reinforced inner layer 1, the polypropylene board layer 2 and the flame-retardant permeable layer 3 are respectively fixed by pressing, the thickness of the reinforced inner layer 1 is 4-6mm, the thickness of the polypropylene board layer 2 is 3-4mm, the thickness of the flame-retardant permeable layer 3 is 4-5mm, the outer sides of the two flame-retardant permeable layers 3 are sprayed with anti-aging coatings 4, and the reinforced inner layer 1 is fixedly connected with polypropylene board layers 2. The inner layer 1 is fixed with uniformly distributed internal reinforcements 11, the density of the internal reinforcements 11 can be set according to actual needs, and the internal reinforcements 11 penetrate the polypropylene board layer 2 and extend to the flame retardant permeation layer 3. The internal reinforcement 11 includes a connecting rod 111 fixed to the reinforced inner layer 1, the outer end of the connecting rod 111 extends to the flame retardant permeation layer 3 and is fixed with a locking block 112, and the locking block 112 is embedded in the outer side of the flame retardant permeation layer 3. The locking block 112 can limit the polypropylene board layer 2 and the flame retardant permeation layer 3 to avoid separation, thereby increasing the strength.

[0022] In this embodiment, the anti-aging coating 4 can prevent air from entering the interior of the composite board, thereby effectively achieving the effect of preventing aging. At the same time, the setting of the flame retardant permeation layer 3 can have a flame retardant effect and increase the flame retardancy of the composite board. The setting of the internal reinforcement 11 can increase the reliability and strength of the composite board to avoid separation of the reinforced inner layer 1, the polypropylene board layer 2, and the flame retardant permeation layer 3.

[0023] Embodiment 2

[0024] like Figure 1 , Figure 3 As shown, the utility model proposes a highly flame-retardant and aging-resistant polypropylene composite board, comprising a reinforced inner layer 1, both sides of the reinforced inner layer 1 are fixedly connected with polypropylene board layers 2, the outer sides of the two polypropylene board layers 2 are fixedly connected with flame-retardant permeable layers 3, the outer sides of the two flame-retardant permeable layers 3 are sprayed with anti-aging coatings 4, and uniformly distributed internal reinforcements 11 are fixed on the reinforced inner layer 1, and the internal reinforcements 11 penetrate the polypropylene board layers 2 and extend to the flame-retardant permeable layers 3;

[0025] The present embodiment also includes that the outer sides of the reinforced inner layer 1, the polypropylene board layer 2, the flame retardant permeation layer 3 and the anti-aging coating 4 are jointly provided with an outer reinforcement 5 that wraps the four side edges, the outer reinforcement 5 includes a reinforced outer frame 51 surrounding the four sides, and both sides of the reinforced outer frame 51 are fixed with a circular frame 52, the reinforced inner layer 1 and the reinforced outer frame 51 can be fixedly connected and welded by rivets, and the inner edge of the circular frame 52 is provided with a chamfer, which can prevent the edge of the circular frame 52 from causing harm to the installer and reduce the installation hidden dangers, and the four corners of the reinforced outer frame 51 are fixed with a fixing sleeve 6, and the two ends of the fixing sleeve 6 respectively pass through the two circular frames 52, when the composite board is fixedly installed, the iron nails or bolts used for fixing can be inserted from the inner hole of the fixing sleeve 6, so that the composite board can be fixed without damaging the structure of the composite board.

[0026] In this embodiment, the reinforced outer frame 51 can protect the side walls of the composite board, and the circular frame 52 can protect the corners of the composite board to prevent the corners of the composite board from warping or being damaged by collision with other objects.

[0027] Embodiment 3

[0028] like Figure 2 As shown, the utility model proposes a highly flame-retardant and aging-resistant polypropylene composite board, comprising a reinforced inner layer 1, both sides of the reinforced inner layer 1 are fixedly connected with polypropylene board layers 2, the outer sides of the two polypropylene board layers 2 are fixedly connected with flame-retardant permeable layers 3, the outer sides of the two flame-retardant permeable layers 3 are sprayed with anti-aging coatings 4, and uniformly distributed internal reinforcements 11 are fixed on the reinforced inner layer 1, and the internal reinforcements 11 penetrate the polypropylene board layers 2 and extend to the flame-retardant permeable layers 3;

[0029] This embodiment also includes: the polypropylene board layer 2 is provided with a transversely arranged long mortise a, and a long tenon block a31 matching the long mortise a is fixed on the flame retardant permeation layer 3; the flame retardant permeation layer 3 is provided with a transversely arranged long mortise b, and a long tenon block b21 matching the long mortise b is fixed on the polypropylene board layer 2. The arrangement of the long tenon block a31 and the long tenon block b21 can strengthen the adhesion between the polypropylene board layer 2 and the flame retardant permeation layer 3, thereby increasing the strength of the composite board.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A highly flame-retardant and ageing-resistant polypropylene composite board, comprising a reinforced inner layer (1), characterized in that: The reinforced inner layer (1) is fixedly connected to both sides with polypropylene board layers (2), the outer sides of the two polypropylene board layers (2) are fixedly connected to flame retardant permeable layers (3), the outer sides of the two flame retardant permeable layers (3) are sprayed with anti-aging coatings (4), and the reinforced inner layer (1) is fixed with uniformly distributed internal reinforcements (11), and the internal reinforcements (11) penetrate the polypropylene board layers (2) and extend to the flame retardant permeable layers (3).

2. The highly flame-retardant and aging-resistant polypropylene composite board according to claim 1, characterized in that: The outer sides of the reinforced inner layer (1), the polypropylene board layer (2), the flame retardant permeation layer (3) and the anti-aging coating (4) are commonly provided with an outer reinforcement member (5) wrapping around the four side edges, and the outer reinforcement member (5) includes a reinforced outer frame (51) surrounding the four sides, and circular frames (52) are fixed on both sides of the reinforced outer frame (51).

3. The highly flame-retardant and aging-resistant polypropylene composite board according to claim 2, characterized in that: The inner edge of the circular frame (52) is provided with a chamfer.

4. The highly flame-retardant and aging-resistant polypropylene composite board according to claim 2, characterized in that: The four corners of the reinforced outer frame (51) are all fixed with fixing sleeves (6), and the two ends of the fixing sleeve (6) respectively penetrate the two circular frame frames (52).

5. The highly flame-retardant and aging-resistant polypropylene composite board according to claim 1, characterized in that: The internal reinforcement (11) comprises a connecting rod (111) fixed to the reinforced inner layer (1), the outer end of the connecting rod (111) extends to the flame retardant permeable layer (3) and is fixed with a locking block (112), and the locking block (112) is embedded in the outer side of the flame retardant permeable layer (3).

6. The highly flame-retardant and aging-resistant polypropylene composite board according to claim 1, characterized in that: The polypropylene board layer (2) is provided with a transversely arranged long mortise a, and a long tenon block a (31) matching the long mortise a is fixed on the flame retardant permeable layer (3). The flame retardant permeable layer (3) is provided with a transversely arranged long mortise b, and a long tenon block b (21) matching the long mortise b is fixed on the polypropylene board layer (2).

7. The highly flame-retardant and aging-resistant polypropylene composite board according to claim 1, characterized in that: The thickness of the reinforced inner layer (1) is 4-6 mm, the thickness of the polypropylene board layer (2) is 3-4 mm, and the thickness of the flame-retardant permeation layer (3) is 4-5 mm.

Images