Fireproof composite material deck and vacuum infusion forming method thereof

Abstract

The invention relates to a fireproof composite material deck which is composed of a foam sandwich and composite material skin layers arranged on the upper side and the lower side of the foam sandwich. The composite material skin layer comprises a fiber pouring layer and a hand lay-up layer. In implementation, the mode that the hand lay-up layer and the pouring layer are combined is adopted on the upper portion and the lower portion of the foam sandwich respectively, so that the upper surface and the lower surface of the composite material deck are both provided with efficient flame-retardant filler, the oxygen index of the composite material deck is larger than or equal to 36, and if the oxygen index is generally larger than or equal to 32, the composite material deck belongs to a flame-retardant material; and meanwhile, the ratio of the accelerant in the hand lay-up layer is relatively low, so that the pre-curing of the resin in the hand lay-up layer in the laying and pouring molding process can be effectively prevented, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite materials, in particular to a fireproof composite material deck and a vacuum infusion molding method thereof. Background Art

[0002] With the rapid development of the global automobile industry and the increasing prosperity of international trade, the market demand for PCTC (Pure Car and Truck Carrier) continues to grow as an important link between automobile production and consumption. As a ship specially designed for transporting automobiles, the deck design of PCTC ships is directly related to the ship's loading capacity, transportation efficiency and safety. However, most traditional PCTC ships use steel decks. Although this design is strong, it has many shortcomings in terms of weight, corrosion resistance and environmental protection.

[0003] Composite materials are usually made of high-strength fibers and resin matrices, and have the characteristics of light weight, high strength, and corrosion resistance. Compared with steel decks, composite decks can significantly reduce the weight and center of gravity of ships, and improve navigation stability, cargo capacity, and fuel efficiency.

[0004] However, the flame retardancy of composite materials is poorer than that of metal materials, and it is usually necessary to improve the flame retardancy of composite materials by adding flame retardants. A patent for a composite helicopter platform deck (CN202220133683.8) includes an anti-slip layer, a flame retardant layer, a first fiber reinforced layer, a sandwich layer, and a second fiber reinforced layer arranged in sequence from top to bottom, and is integrally formed by vacuum infusion of flame retardant resin. The flame retardant layer with flame retardant effect is reinforced with satin cloth, and flame retardant powder is evenly laid between the satin cloths. In this way, since the powder is not pre-mixed with the resin, the powder will be dispersed by the flowing resin during the vacuum canning process, and a uniform effect cannot be achieved after molding.

[0005] Therefore, there is an urgent need in the prior art for an improved fireproof composite deck to improve product quality, especially to improve fire retardant properties. Summary of the invention

[0006] The purpose of the present invention is to provide an improved fireproof composite material deck and a vacuum infusion molding method thereof, through which the surface of the composite material deck has better flame retardant properties when exposed to fire, and at the same time has the characteristics of light weight, high strength and corrosion resistance.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a fireproof composite deck, characterized in that: the fireproof composite deck is composed of a foam sandwich and a composite skin layer arranged on the upper and lower sides of the foam sandwich; the composite skin layer includes a fiber infusion layer and a hand lay-up layer.

[0008] Preferably, the fiber infusion layer is composed of an infusion layer dry fiber cloth and an infusion resin mixture that impregnates the dry fiber cloth; the ingredients of the infusion resin mixture include: 100 parts of flame retardant vinyl ester resin, 1.5 parts of methyl ethyl ketone peroxide curing agent, and 1 part of cobalt isooctanoate accelerator.

[0009] Furthermore, the hand lay-up layer is composed of a hand lay-up layer dry fiber cloth and a hand lay-up resin mixture that impregnates the hand lay-up layer dry fiber cloth; the components of the hand lay-up resin mixture include: 100 parts of flame retardant vinyl ester resin, 1.5 parts of methyl ethyl ketone peroxide curing agent, 0.5 parts of cobalt isooctanoate accelerator, and 1-20 parts of high-efficiency flame retardant filler.

[0010] A vacuum infusion molding method for a fireproof composite material deck, characterized in that: the vacuum infusion molding method comprises the following steps: a. cleaning the mold surface and treating the surface with a demoulding medium; b. preparing hand-layup resin, mixing the resin, curing agent, accelerator and flame retardant, dispersing them evenly with a disperser, and placing the prepared hand-layup resin in a degassing barrel for degassing; c. preparing the infusion resin, mixing the resin, curing agent and accelerator, dispersing them evenly with a disperser, and placing the prepared infusion resin in a degassing barrel for degassing; d. placing the hand-layup layer dry fiber cloth flat on a clean plane, evenly applying the hand-layup resin mixture on the hand-layup layer dry fiber cloth with a scraper, and laying the impregnated hand-layup layer fiber cloth on the mold surface to form the following layer of hand lay-up; e. After the lower hand lay-up layer is laid, lay the lower infusion layer dry fiber cloth on top of the hand lay-up layer, lay the foam sandwich on top of the lower infusion layer dry fiber cloth, and then lay the upper infusion layer dry fiber on top of the foam sandwich; f. Place the hand lay-up layer dry fiber cloth flat on a clean plane, evenly apply the hand lay-up resin mixture on the hand lay-up layer dry fiber cloth with a scraper, and lay the impregnated hand lay-up layer fiber cloth on the surface of the upper infusion layer dry fiber layer to form an upper hand lay-up layer; g. Lay the diversion structure, glue injection device and vacuum device; h. Vacuum the whole and check the air tightness; after the air tightness is qualified, infuse the prepared infusion resin mixture, and after the infusion is completed, cure and demould to obtain a fireproof composite deck.

[0011] Preferably, in step b, a hand-laid resin mixture is prepared, 100 parts by mass of a flame-retardant vinyl ester resin and 0.5 parts of a cobalt isooctanoate accelerator are stirred using a disperser at a speed of 2000 r / min. After mixing evenly, 1.5 parts of methyl ethyl ketone peroxide curing agent are added and continued to be stirred evenly using a disperser at a speed of 2000 r / min; then 1-20 parts of a high-efficiency flame retardant coating are added, and the disperser is continued to be stirred at a speed of 3500 r / min. Finally, the prepared hand-laid resin mixture is placed in a degassing barrel for degassing for 10 minutes.

[0012] Furthermore, the high-efficiency flame-retardant filler is one or a combination of two or more of antimony trioxide, zinc borate, aluminum hydroxide, and expanded graphite.

[0013] Further, in step c, a perfusion resin mixture is prepared, 100 parts by mass of flame retardant vinyl ester resin and 1 part of cobalt isooctanoate accelerator are stirred by a disperser at a speed of 2000r / min. After mixing evenly, 1.5 parts of methyl ethyl ketone peroxide curing agent are added and continued to be stirred evenly by a disperser at a speed of 2000r / min. Finally, the prepared perfusion resin mixture is placed in a degassing barrel for degassing for 10 minutes.

[0014] Furthermore, the hand-layup layer dry fiber cloth is a glass fiber biaxial warp knitted fabric, and the upper and lower hand-layup layers each have 2 layers of glass fiber biaxial warp knitted fabric; the upper and lower infusion layer dry fiber cloth each have 3 layers of glass fiber biaxial warp knitted fabric.

[0015] Furthermore, in step h, after evacuation, the vacuum degree is maintained at -99 kPa for 15 minutes. After the air tightness is qualified, the prepared infusion resin is infused. After the infusion is completed, it is cured at room temperature and the curing time is 24 hours.

[0016] Compared with the prior art, the technical solution of the present invention not only improves the overall technical solution, but also includes many improvements in details. Specifically, it has the following beneficial effects: 1. The improved scheme of the present invention, the fireproof composite deck is composed of a foam sandwich and a composite skin layer arranged on the upper and lower sides of the foam sandwich; the composite skin layer includes a fiber infusion layer and a hand lay-up layer, wherein the hand lay-up layer contains a flame retardant filler, so that the composite deck has flame retardant and fireproof properties; 2. In the technical solution of the present invention, the components of the hand-layup resin mixture include: 100 parts of flame-retardant vinyl ester resin, 1.5 parts of methyl ethyl ketone peroxide curing agent, 0.5 parts of cobalt isooctanoate accelerator, and 1-20 parts of high-efficiency flame-retardant filler. The addition of the high-efficiency flame-retardant filler makes the oxygen index of the composite deck 36. The composite deck passes the surface flammability test specified in the IMO FTP rules of the International Maritime Organization, further improving the fire resistance of the deck; 3. The molding method of the present invention is a process method combining hand lay-up and infusion, which can make the upper and lower surfaces of the composite deck have high-efficiency flame-retardant fillers, so that the surface of the composite deck has better flame-retardant properties when it encounters fire, and does not affect the vacuum infusion process. Different accelerator ratios are used in the hand lay-up layer and the infusion layer. The accelerator ratio in the hand lay-up layer is lower, which can effectively prevent the hand lay-up layer resin from solidifying prematurely during the laying and infusion molding process, thereby improving product quality.

[0017] 4. The vacuum infusion molding process of the structure of the present invention has simple steps, is easy to implement, has low cost, and is easy to promote and utilize. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic diagram of the structure of the vacuum infusion molding ply in an embodiment of the present invention.

[0019] Reference numerals: 1. Upper hand-layup layer, 2. Upper pouring layer, 3. Foam sandwich, 4. Lower pouring layer, 5. Lower hand-layup layer. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0021] The present invention provides a fireproof composite deck, see Figure 1 The difference between the present invention and the prior art is that the fireproof composite deck is composed of a foam core and a composite skin layer arranged on the upper and lower sides of the foam core; the composite skin layer includes a fiber infusion layer and a hand lay-up layer.

[0022] During implementation, a hand lay-up layer and a pouring layer are respectively used on the upper and lower parts of the foam sandwich, so that the upper and lower surfaces of the composite deck are provided with high-efficiency flame-retardant fillers, so that the oxygen index of the composite deck is greater than or equal to 36. Generally, materials with an oxygen index greater than or equal to 32 are flame-retardant materials, so that the composite deck has better flame-retardant properties when encountering fire. At the same time, the proportion of accelerator in the hand lay-up layer of the present invention is relatively low, which can effectively prevent the hand lay-up layer resin from curing prematurely during laying and pouring molding, thereby improving the quality of the product.

[0023] The advantages of the present invention are as follows: 1. The molding method combining hand lay-up and infusion solves the problem that fillers and flame retardants cannot be added in infusion molding to improve the flame retardancy of composite materials (generally, infusion molding adopts the method of adding liquid flame retardants, but liquid flame retardants generally have low flame retardant efficiency, large addition amount, and affect the mechanical properties and water resistance of materials).

[0024] 2. Use different ratios of accelerators for the hand lay-up layer and the infusion layer to ensure that there is enough window period during the molding process, and the hand lay-up layer will not solidify prematurely during infusion.

[0025] Example 1

[0026] In this embodiment, a fireproof composite deck is provided, which is composed of a foam sandwich and a composite skin layer arranged on the upper and lower sides of the foam sandwich; the composite skin layer includes a fiber infusion layer and a hand-layup layer. Specifically, the fiber infusion layer is composed of a dry fiber cloth of the infusion layer and a mixture of infusion resins that impregnate the dry fiber cloth of the infusion layer; the ingredients of the infusion resin mixture include: 100 parts of flame-retardant vinyl ester resin (resin model 892N produced by Shanghai Fuchen Chemical Co., Ltd.), 1.5 parts of methyl ethyl ketone peroxide curing agent (curing agent model M50 produced by Changzhou Lebang Composite Materials Co., Ltd.), and 1 part of cobalt isooctanoate accelerator (resin matching accelerator model 892N produced by Shanghai Fuchen Chemical Co., Ltd.). The hand-layup layer is composed of a hand-layup layer dry fiber cloth and a hand-layup resin mixture that impregnates the dry fiber cloth of the hand-layup layer; the ingredients of the hand-layup resin mixture include: 100 parts of flame-retardant vinyl ester resin, 1.5 parts of methyl ethyl ketone peroxide curing agent, 0.5 parts of cobalt isooctanoate accelerator, and 1-20 parts of high-efficiency flame-retardant filler.

[0027] The high-efficiency flame retardant filler here is one or more of antimony trioxide (produced by Hefei Zhongke Flame Retardant New Material Co., Ltd.), zinc borate (produced by Suzhou Dongtuo Chemical Co., Ltd.), aluminum hydroxide (produced by Hefei Zhongke Flame Retardant New Material Co., Ltd.), and expanded graphite (produced by Suzhou Dongtuo Chemical Co., Ltd.). For example, 3 parts of antimony trioxide and 5 parts of expanded graphite are used; or 2 parts of zinc borate and 5 parts of aluminum hydroxide are used.

[0028] Example 2

[0029] In this embodiment, the vacuum infusion molding method includes the following steps: a. cleaning the mold surface and treating the surface with a demoulding medium; b. preparing hand-layup resin, mixing the resin, curing agent, accelerator, and flame retardant, and dispersing them evenly with a disperser, and placing the prepared hand-layup resin in a degassing barrel for degassing; c. preparing the infusion resin, mixing the resin, curing agent, and accelerator, and dispersing them evenly with a disperser, and placing the prepared infusion resin in a degassing barrel for degassing; d. placing the hand-layup layer dry fiber cloth flat on a clean plane, and evenly applying the hand-layup resin mixture on the hand-layup layer dry fiber cloth with a scraper, and laying the impregnated hand-layup layer fiber cloth on the mold surface to form a lower hand-layup layer; e. After the paste layer is laid, lay the lower layer of the infusion layer dry fiber cloth on the hand lay-up layer, lay the foam sandwich on the lower layer of the infusion layer dry fiber cloth, and then lay the upper layer of the infusion layer dry fiber on the foam sandwich; f. Place the hand lay-up layer dry fiber cloth flat on a clean plane, evenly apply the hand lay-up resin mixture on the hand lay-up layer dry fiber cloth with a scraper, and lay the impregnated hand lay-up layer fiber cloth on the surface of the upper layer of the infusion layer dry fiber layer to form an upper hand lay-up layer; g. Lay the diversion structure, glue injection device and vacuum device; h. Vacuum the whole and check the air tightness; after the air tightness is qualified, infuse the prepared infusion resin mixture, and after the infusion is completed, cure and demould to obtain a fireproof composite deck.

[0030] Preferably, in step b, a hand-paste resin mixture is prepared, and 100 parts of flame-retardant vinyl ester resin (resin of model 892N produced by Shanghai Fuchen Chemical Co., Ltd.) and 0.5 parts of cobalt isooctanoate accelerator (resin supporting accelerator of model 892N produced by Shanghai Fuchen Chemical Co., Ltd.) are stirred by a disperser at a speed of 2000r / min. After uniform mixing, 1.5 parts of methyl ethyl ketone peroxide curing agent (curing agent of model M50 produced by Changzhou Lebang Composite Materials Co., Ltd.) are added and continued to be stirred evenly with a disperser at a speed of 2000r / min; then 1-20 parts of high-efficiency flame-retardant coating are added, and the disperser is continued to be stirred at a speed of 3500r / min, and finally the prepared hand-paste resin mixture is placed in a degassing barrel for degassing for 10min. The high-efficiency flame-retardant filler is one or more combinations of antimony trioxide, zinc borate, aluminum hydroxide, and expanded graphite.

[0031] Further, in step c, a perfusion resin mixture is prepared, 100 parts by mass of flame retardant vinyl ester resin and 1 part of cobalt isooctanoate accelerator are stirred by a disperser at a speed of 2000r / min. After mixing evenly, 1.5 parts of methyl ethyl ketone peroxide curing agent are added and continued to be stirred evenly by a disperser at a speed of 2000r / min. Finally, the prepared perfusion resin mixture is placed in a degassing barrel for degassing for 10 minutes.

[0032] Furthermore, the hand-layup layer dry fiber cloth is a glass fiber biaxial warp knitted fabric, and the upper and lower hand-layup layers are each provided with 2 layers of glass fiber biaxial warp knitted fabric; the upper and lower infusion layer dry fiber cloth are each provided with 3 layers of glass fiber biaxial warp knitted fabric. In step h, after vacuuming, the vacuum degree is maintained at -99kPa for 15 minutes, and after the air tightness is qualified, the prepared infusion resin is infused, and after the infusion is completed, it is cured, and the curing temperature is room temperature and the curing time is 24 hours.

[0033] The vacuum infusion molding method for a fireproof composite deck provided in this embodiment improves the common vacuum infusion molding fiber laying method into a method combining hand lay-up and infusion, so that the upper and lower surfaces of the composite deck can be provided with high-efficiency flame-retardant fillers, so that the surface of the composite deck has better flame-retardant properties when exposed to fire, and does not affect the vacuum infusion process. Different accelerator ratios are used in the hand lay-up layer and the infusion layer, and the accelerator ratio in the hand lay-up layer is lower, which can effectively prevent the hand lay-up layer resin from curing prematurely during the laying and infusion molding process.

[0034] Example 3

[0035] This embodiment discloses a vacuum infusion molding method for a fireproof composite material deck, the method comprising the following steps: Step 1: Clean the mold surface and treat the surface with a release agent.

[0036] Step 2: Prepare the hand-layup resin mixture. Stir the flame-retardant vinyl ester resin (100 parts, the same by mass below) and the cobalt isooctanoate accelerator (0.5 parts) with a disperser at a speed of 2000r / min. After mixing evenly, add methyl ethyl ketone peroxide curing agent (1.5 parts) and continue to stir evenly with a disperser at a speed of 2000r / min. Add antimony trioxide (3 parts) and expanded graphite (5 parts) to the resin and stir with a disperser at a speed of 3500r / min. Put the prepared hand-layup resin into a degassing barrel for degassing for 10 minutes.

[0037] Step 3: Prepare the infusion resin mixture, stir the flame retardant vinyl ester resin (100 parts) and cobalt isooctanoate accelerator (1 part) with a disperser at a speed of 2000r / min. After mixing evenly, add methyl ethyl ketone peroxide curing agent (1.5 parts) and continue to stir evenly with a disperser at a speed of 2000r / min. Put the prepared infusion resin into a degassing barrel for degassing for 10 minutes.

[0038] Step 4: Place the biaxial warp knitted glass fiber fabric on a clean surface, and evenly apply the prepared hand lay-up resin on the biaxial warp knitted glass fiber fabric with a scraper. Lay two layers of impregnated biaxial warp knitted glass fiber fabric on the mold surface to form the lower hand lay-up layer.

[0039] Step 5: After the lower hand lay-up layer is laid, lay the lower perfusion layer dry fiber cloth (three layers of glass fiber biaxial warp knitted fabric) on top of the hand lay-up layer, and then lay the PVC100 foam sandwich board (50mm thick, foam board with guide holes and guide grooves) on top of the lower perfusion layer dry fiber cloth. Then lay the upper perfusion layer dry fiber cloth (three layers of glass fiber biaxial warp knitted fabric) on top of the foam sandwich.

[0040] Step 6: Place the biaxial warp knitted glass fiber fabric flat on a clean surface, and evenly apply the prepared hand lay-up resin on the biaxial warp knitted glass fiber fabric with a scraper. Lay the impregnated fiber cloth on the surface of the upper perfusion layer of dry fiber cloth to form the upper hand lay-up layer.

[0041] Step 7: Lay out the guide, glue injection, and vacuum parts. Vacuum and check the air tightness to keep the vacuum degree at -99kPa for 15min; after the air tightness is qualified, pour the prepared pouring resin, and cure after pouring. The curing temperature is room temperature and the curing time is 24h. After curing, demoulding is carried out to obtain the fireproof composite deck.

[0042] The upper and lower skins of the fireproof composite deck prepared by this embodiment have a certain flame retardant effect, and the surface layer contains a high-efficiency flame retardant, which further improves the fire resistance of the deck. Through testing, the oxygen index of the composite deck is 36, and the composite deck passes the surface flammability test specified by the IMO FTP rules of the International Maritime Organization. At the same time, the method of using different proportions of accelerators is adopted to prevent the hand lay-up layer resin from curing prematurely, ensuring that the composite deck can be integrally formed and has good structural integrity.

[0043] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to the above descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. A fireproof composite deck, characterized by: The fireproof composite deck consists of a foam core and composite skin layers arranged on the upper and lower sides of the foam core; the composite skin layers include a fiber infusion layer and a hand lay-up layer.

2. The fireproof composite deck according to claim 1, characterized in that: The fiber infusion layer is composed of an infusion layer dry fiber cloth and an infusion resin mixture that impregnates the dry fiber cloth; the ingredients of the infusion resin mixture include: 100 parts of flame retardant vinyl ester resin, 1.5 parts of methyl ethyl ketone peroxide curing agent, and 1 part of cobalt isooctanoate accelerator.

3. The fireproof composite deck according to claim 1, characterized in that: The hand lay-up layer is composed of a hand lay-up layer dry fiber cloth and a hand lay-up resin mixture that impregnates the hand lay-up layer dry fiber cloth; The hand-layup resin mixture comprises: 100 parts of flame-retardant vinyl ester resin, 1.5 parts of methyl ethyl ketone peroxide curing agent, 0.5 parts of cobalt isooctanoate accelerator, and 1-20 parts of high-efficiency flame-retardant filler.

4. The vacuum infusion molding method of a fireproof composite material deck according to claim 1, characterized in that: The vacuum infusion molding method comprises the following steps: a. cleaning the mold surface and treating the surface with a demoulding medium; b. preparing hand lay-up resin, mixing resin, curing agent, accelerator and flame retardant, dispersing them evenly with a disperser, and placing the prepared hand lay-up resin in a degassing barrel for degassing; c. preparing infusion resin, mixing resin, curing agent and accelerator, dispersing them evenly with a disperser, and placing the prepared infusion resin in a degassing barrel for degassing; d. placing a hand lay-up layer dry fiber cloth flat on a clean plane, evenly applying the hand lay-up resin mixture on the hand lay-up layer dry fiber cloth with a scraper, and laying the impregnated hand lay-up layer fiber cloth on the mold surface to form a lower hand lay-up layer; e. laying the lower hand lay-up layer After the installation is completed, lay the lower layer of the infusion layer dry fiber cloth on the hand lay-up layer, lay the foam sandwich on the lower layer of the infusion layer dry fiber cloth, and then lay the upper layer of the infusion layer dry fiber on the foam sandwich; f. Place the hand lay-up layer dry fiber cloth flat on a clean plane, evenly apply the hand lay-up resin mixture on the hand lay-up layer dry fiber cloth with a scraper, and lay the impregnated hand lay-up layer fiber cloth on the surface of the upper layer of the infusion layer dry fiber layer to form an upper hand lay-up layer; g. Lay the diversion structure, glue injection device and vacuum device; h. Vacuum the whole and check the air tightness; after the air tightness is qualified, infuse the prepared infusion resin mixture, and after the infusion is completed, cure and demould to obtain a fireproof composite deck.

5. The vacuum infusion molding method of a fireproof composite material deck according to claim 4, characterized in that: In step b, a hand-layup resin mixture is prepared, and 100 parts of flame-retardant vinyl ester resin and 0.5 parts of cobalt isooctanoate accelerator are stirred by a disperser at a speed of 2000 r / min. After mixing evenly, 1.5 parts of methyl ethyl ketone peroxide curing agent are added and continued to be stirred evenly by a disperser at a speed of 2000 r / min; then 1-20 parts of high-efficiency flame retardant coating are added, and the disperser is continued to be stirred at a speed of 3500 r / min. Finally, the prepared hand-layup resin mixture is placed in a degassing barrel for degassing for 10 minutes.

6. The vacuum infusion molding method of a fireproof composite material deck according to claim 5, characterized in that: The high-efficiency flame-retardant filler is one or a combination of two or more of antimony trioxide, zinc borate, aluminum hydroxide and expanded graphite.

7. The vacuum infusion molding method of a fireproof composite material deck according to claim 4, characterized in that: In step c, a pouring resin mixture is prepared. 100 parts by weight of flame-retardant vinyl ester resin and 1 part of cobalt isooctanoate accelerator are stirred by a disperser at a speed of 2000 r / min. After mixing evenly, 1.5 parts of methyl ethyl ketone peroxide curing agent are added and continued to be stirred evenly by a disperser at a speed of 2000 r / min. Finally, the prepared pouring resin mixture is placed in a degassing barrel for degassing for 10 minutes.

8. The vacuum infusion molding method of a fireproof composite material deck according to claim 4, characterized in that: The hand-layup layer dry fiber cloth is a glass fiber biaxial warp knitted fabric, and the upper and lower hand-layup layers are each provided with 2 layers of glass fiber biaxial warp knitted fabric; the upper and lower infusion layer dry fiber cloth are each provided with 3 layers of glass fiber biaxial warp knitted fabric.

9. The vacuum infusion molding method of a fireproof composite material deck according to claim 4, characterized in that: In step h, after evacuation, the vacuum degree is maintained at -99 kPa for 15 minutes. After the air tightness is qualified, the prepared infusion resin is infused. After the infusion is completed, it is cured at room temperature and the curing time is 24 hours.

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