Preparation method of mildew-proof flame-retardant carbon fiber board

Abstract

The invention provides a preparation method of a mildew-proof flame-retardant carbon fiber board, and belongs to the technical field of new materials. The problem of poor stability in the prior art is solved. The preparation method of the mildew-proof flame-retardant carbon fiber board comprises the following steps: A, preparation: preparing an outer board and a flame-retardant adhesive; b, pre-connection, wherein the number of the outer plates is two, and after the two outer plates are connected in a buckled mode, a glue cavity is formed between the two outer plates; c, glue filling: filling the flame-retardant glue into the glue cavity; and D, forming: obtaining a semi-finished product after the flame-retardant glue is solidified and formed, and removing solidified glue overflowing out of the edge of the semi-finished product to obtain a finished carbon fiber board. The preparation method of the mildew-proof flame-retardant carbon fiber board is high in stability.

Description

Technical Field

[0001] The invention belongs to the technical field of new materials and relates to a method for preparing a mildew-proof flame-retardant carbon fiber board. Background Art

[0002] Carbon fiber board is a high-performance material made of carbon fiber and resin matrix. It combines the high strength and lightweight properties of carbon fiber with the good formability of resin and is widely used in aerospace, automobile manufacturing, sporting goods and other fields.

[0003] Existing carbon fiber boards are usually of an integrated structure, and since the board body is relatively thin, its strength is limited. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing a mildew-proof flame-retardant carbon fiber board which is simple to prepare and has high stability in view of the above problems existing in the prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A method for preparing a mildew-proof flame-retardant carbon fiber board, characterized in that the preparation method comprises the following steps:

[0007] A. Preparation: Prepare outer panels and flame retardant adhesive;

[0008] B. Pre-connection: There are two outer panels, which are buckled and connected to form a glue cavity between them;

[0009] C. Glue pouring: pour the flame retardant glue into the glue cavity;

[0010] D. Molding: After the flame retardant glue is solidified and formed, a semi-finished product is obtained, and the finished carbon fiber board is obtained after the solidified colloid overflowing from the edge of the semi-finished product is removed.

[0011] In the above-mentioned method for preparing mildew-proof and flame-retardant carbon fiber board, the outer panel includes a plate body one and a plate body two in the shape of a plate. The plate body one is a high-density plate material pressed by carbon powder and resin particles in a mass ratio of 1:1, and the plate body two is a resin material. The plate body one has a penetrating positioning hole, and the inner side of the plate body two has a positioning column matching the positioning hole, and the positioning column is embedded in the positioning hole.

[0012] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, the outer side of the second board body has arc-shaped concave glue storage recesses, the number of the glue storage recesses is several, and the several glue storage recesses are evenly distributed along the length direction of the second board body.

[0013] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, the upper end of the positioning hole has a recessed connecting seat, the size of the connecting seat is larger than the size of the positioning hole, and the outer end of the positioning column has a positioning head matching the connecting seat and the positioning head is embedded in the connecting seat.

[0014] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, the above-mentioned positioning holes and positioning columns form a connecting unit, the number of the connecting units is several and the several connecting units are evenly distributed along the length direction of the board body.

[0015] In the above-mentioned method for preparing the mildew-proof flame-retardant carbon fiber board, the board bodies on the two outer panels are opposite to each other and the edges of the two outer panels are flush, and the glue storage recesses on the two outer panels correspond to each other one by one.

[0016] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, a protruding pre-positioning rod is provided at the bottom of the glue storage recess of one outer panel, and another glue storage recess corresponding to the above-mentioned glue storage recess has a recessed pre-positioning hole, and the above-mentioned pre-positioning rod is embedded in the pre-positioning hole.

[0017] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, the pre-positioning rod and the board body are an integrated structure.

[0018] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, among two adjacent pre-positioning rods, one pre-positioning rod is located at two locations of the upper plate body, and the other pre-positioning rod is located at two locations of the lower plate body.

[0019] In the above-mentioned method for preparing mildew-proof flame-retardant carbon fiber board, the thickness of the board body one is the same as that of the board body two, the gap size between the two adjacent board bodies two is A, the thickness size of the board body one is B, and A is 1 / 3-1 / 2 of B.

[0020] Compared with the prior art, in the method for preparing mildew-proof and flame-retardant carbon fiber board, since the outer panel is formed by the combination of panel body one and panel body two, panel body one has good flame-retardant properties, and the panel body two can stably form glue storage recesses and positioning columns. Therefore, after the positioning columns are embedded in the positioning holes, panel body one and panel body two can be stably connected together. At the same time, the glue storage recesses on panel body two can provide an appropriate amount of flame-retardant glue between the two adjacent upper and lower outer panels, thereby ultimately ensuring that the entire carbon fiber board is stably connected together. The formed carbon fiber board not only has good flame-retardant properties, but also has high stability.

[0021] Of course, the role of the pre-positioning columns and the pre-positioning holes not only facilitates the pre-assembly of the two outer panels, but also further improves the connection stability of the two outer panels, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cross-sectional structure of a carbon fiber board.

[0023] In the figure, 1, plate body 1; 1a, positioning hole; 1b, connecting seat; 2, plate body 2; 2a, positioning column; 2a1, positioning head; 2b, glue storage recess; 3, pre-positioning rod; 4, pre-positioning hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0027] The method for preparing the mildew-proof flame-retardant carbon fiber board comprises the following steps:

[0028] A. Preparation: Prepare outer panels and flame retardant adhesive;

[0029] B. Pre-connection: There are two outer panels, which are buckled and connected to form a glue cavity between them;

[0030] C. Glue pouring: pour the flame retardant glue into the glue cavity;

[0031] D. Molding: After the flame retardant glue is solidified and formed, a semi-finished product is obtained, and the finished carbon fiber board is obtained after the solidified colloid overflowing from the edge of the semi-finished product is removed.

[0032] like Figure 1As shown, the outer panel includes a plate body 1 and a plate body 2 in the form of a plate. The plate body 1 is a high-density plate material obtained by pressing carbon powder and resin particles in a mass ratio of 1:1. The plate body 2 is made of resin material. The plate body 1 has a penetrating positioning hole 1a. The inner side of the plate body 2 has a positioning column 2a that matches the positioning hole 1a, and the positioning column 2a is embedded in the positioning hole 1a.

[0033] The plate body 1 has good flame retardant properties, and the plate body 2 has sufficient strength. Therefore, the outer plate has good flame retardant properties and appropriate strength. The inner and outer sides of the carbon fiber board formed by connecting the two outer plates both have good flame retardant properties and appropriate strength.

[0034] Since the plate body 2 made of resin material can be injection molded by a corresponding mold, the connection between the plate body 1 and the plate body 2 2 is simple and fast.

[0035] After the flame retardant adhesive is filled between the two plate bodies 2, the entire carbon fiber board can be quickly prepared and formed.

[0036] The outer side of the plate body 2 is provided with arc-shaped concave glue storage recesses 2b, and the number of the glue storage recesses 2b is several, and the several glue storage recesses 2b are evenly distributed along the length direction of the plate body 2.

[0037] The multiple concave glue storage notches 2b can ensure that there is an appropriate amount of flame-retardant glue between two upper and lower adjacent plate bodies 2b, and finally stably connect the two plate bodies 2 together.

[0038] The upper end of the positioning hole 1a has a recessed connection seat 1b, the size of the connection seat 1b is larger than the size of the positioning hole 1a, and the outer end of the positioning column 2a has a positioning head 2a1 matching the connection seat 1b, and the positioning head 2a1 is embedded in the connection seat 1b.

[0039] The connection seat 1b cooperates with the positioning head 2a11 to enable the plate body 1 and the plate body 2 2 to be connected together more stably.

[0040] The positioning holes 1a and the positioning posts 2a form a connection unit. The number of the connection units is several and the connection units are evenly distributed along the length direction of the plate body 1.

[0041] The plate bodies 2 on the two outer plates are opposite to each other and the edges of the two outer plates are flush, and the glue storage recesses 2b on the two outer plates correspond one to one.

[0042] A protruding pre-positioning rod 3 is provided at the bottom of the glue storage recess 2 b of one of the outer plates, and a recessed pre-positioning hole 4 is provided on another glue storage recess 2 b corresponding to the above-mentioned glue storage recess 2 b, and the above-mentioned pre-positioning rod 3 is embedded in the pre-positioning hole 4.

[0043] After the pre-positioning rod 3 is inserted into the pre-positioning hole 4, the two upper and lower adjacent plate bodies 2 can be stably connected together.

[0044] The pre-positioning rod 3 and the plate body 2 are an integrated structure.

[0045] Of the two adjacent pre-positioning rods 3 , one pre-positioning rod 3 is located at the second upper plate body 2 , and the other pre-positioning rod 3 is located at the second lower plate body 2 .

[0046] Two adjacent pre-positioning rods 3 are staggered, with one rod being located at the upper part and the other rod being located at the lower part, so that stress concentration can be avoided and the stability of the entire carbon fiber board can be improved.

[0047] The thickness of the plate body 1 is the same as that of the plate body 2, the gap between the two adjacent plate bodies 2 is A, the thickness of the plate body 1 is B, and A is 1 / 3 of B. Of course, according to actual conditions, the gap of 1 / 2 is also feasible.

[0048] Such a structure can stably connect two upper and lower adjacent outer panels together.

[0049] In the preparation method of the mildew-proof flame-retardant carbon fiber board, since the outer panel is formed by the combination of the plate body one and the plate body two, the plate body one has good flame-retardant properties, and the glue storage recess and the positioning column can be stably formed on the plate body two. Therefore, after the positioning column is embedded in the positioning hole, the plate body one and the plate body two can be stably connected together. At the same time, the glue storage recess on the plate body two can provide an appropriate amount of flame-retardant glue between the two adjacent outer panels, ultimately ensuring that the entire carbon fiber board is stably connected together. The formed carbon fiber board not only has good flame-retardant properties, but also has high stability.

[0050] Of course, the role of the pre-positioning column and the pre-positioning hole not only makes the pre-assembly of the two outer panels simple, but also further improves the connection stability of the two outer panels, which has a high practical value.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A method for preparing a mildew-proof flame-retardant carbon fiber board, characterized in that: The preparation method comprises the following steps: A. Preparation: Prepare outer panels and flame retardant adhesive; B. Pre-connection: There are two outer panels, which are buckled and connected to form a glue cavity between them; C. Glue pouring: pour the flame retardant glue into the glue cavity; D. Molding: After the flame retardant glue is solidified and formed, a semi-finished product is obtained, and the finished carbon fiber board is obtained after the solidified colloid overflowing from the edge of the semi-finished product is removed.

2. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 1, characterized in that: The outer plate includes a plate body 1 and a plate body 2 which are in the shape of a plate. The plate body 1 is a high-density plate material formed by pressing carbon powder and resin particles in a mass ratio of 1:

1. The plate body 2 is made of resin material. The plate body 1 has a penetrating positioning hole. The inner side of the plate body 2 has a positioning column matching the positioning hole and the positioning column is embedded in the positioning hole.

3. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 2, characterized in that: The outer side of the second plate body is provided with an arc-shaped concave glue storage recess, the number of the glue storage recess is several, and the several glue storage recesses are evenly distributed along the length direction of the second plate body.

4. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 3, characterized in that: The upper end of the positioning hole is provided with a recessed connection seat, the size of the connection seat is larger than the size of the positioning hole, and the outer end of the positioning column is provided with a positioning head matching the connection seat, and the positioning head is embedded in the connection seat.

5. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 4, characterized in that: The positioning holes and the positioning columns form a connection unit, and the number of the connection units is several and the connection units are evenly distributed along the length direction of the plate body.

6. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 5, characterized in that: The plate bodies on the two outer plates are directly opposite to each other and the edges of the two outer plates are flush, and the glue storage recesses on the two outer plates correspond to each other one by one.

7. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 6, characterized in that: A protruding pre-positioning rod is provided at the bottom of the glue storage recess of one of the outer plates, and a concave pre-positioning hole is provided on another glue storage recess corresponding to the above glue storage recess, and the above pre-positioning rod is embedded in the pre-positioning hole.

8. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 7, characterized in that: The pre-positioning rod and the plate body are an integrated structure.

9. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 8, characterized in that: Of the two adjacent pre-positioning rods, one pre-positioning rod is located at two locations of the upper plate body, and the other pre-positioning rod is located at two locations of the lower plate body.

10. The method for preparing mildew-proof flame-retardant carbon fiber board according to claim 9, characterized in that: The thickness of the plate body 1 is the same as that of the plate body 2. The gap size between two upper and lower adjacent plate bodies 2 is A. The thickness size of the plate body 1 is B, and A is 1 / 3-1 / 2 of B.

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