Flame-retardant cellular board continuous hot pasting compounding process

Abstract

The invention belongs to the technical field of composite materials, and discloses a flame-retardant cellular board continuous hot pasting compounding process which comprises the following components: a flame retardant, an adhesive, a base material, an inorganic filler, high-strength resin and a carbon fiber reinforced material. The flame retardant, the adhesive, the base material, the inorganic filler, the high-strength resin and the carbon fiber reinforced material are uniformly mixed according to the proportion, the mixed composite material is uniformly coated on the surface of the honeycomb paperboard, and calcium silicate is added as the inorganic filler, so that the stability of the material in a high-temperature environment can be improved; the aluminum hydroxide is used as a flame retardant, so that the flame retardant property of the material is improved, particularly in a high-temperature environment, the aluminum hydroxide can be decomposed and release water vapor at high temperature, and in a continuous hot-bonding compounding process, the hot-bonding compounding temperature, the hot-bonding speed and the hot-bonding pressure are controlled, so that the flame retardant property of the material is improved. The adhesive can fully permeate the base material, and the quality of the composite material is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of composite materials, and in particular relates to a continuous thermal bonding composite process for flame-retardant honeycomb panels. Background Art

[0002] Flame retardant honeycomb panel is a panel with honeycomb structure and flame retardant performance. It is mainly composed of two layers of panels and the honeycomb core material in the middle. The panels are generally made of aluminum alloy, stainless steel, wood or plastic, while the honeycomb core material is usually made of aluminum alloy, paper or glass fiber. It is characterized by being light, strong and having good flame retardant properties.

[0003] Existing flame-retardant honeycomb panel technology has some limitations when facing high-temperature environments. Specifically, flame-retardant honeycomb panels often exhibit insufficient flame-retardant properties in high-temperature environments, which directly affects the safety and reliability of the material. Due to insufficient flame-retardant properties, these honeycomb panels are prone to flame spread when encountering extreme conditions such as fire, thereby shortening the service life of the material. Summary of the invention

[0004] The object of the present invention is to provide a flame retardant honeycomb panel continuous thermal bonding composite process to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0006] Flame retardants;

[0007] adhesive;

[0008] Base material;

[0009] Inorganic fillers;

[0010] High strength resin;

[0011] Carbon fiber reinforced materials;

[0012] The content of the flame retardant is controlled at 20-30%, the content of the adhesive is controlled at 5-10%, the content of the base material is controlled at 60-75%, the content of the inorganic filler is controlled at 5%-30%, the content of the high-strength resin is controlled at 10%-30%, and the content of the carbon fiber reinforced material is controlled at 5%-15%.

[0013] As a further solution of the present invention: the flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

[0014] As a further solution of the present invention: the high-strength resin is epoxy resin, and the carbon fiber reinforced material is chopped carbon fiber.

[0015] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0016] Mixing preparation: uniformly mix the flame retardant, adhesive, substrate, inorganic filler, high-strength resin and carbon fiber reinforcement material according to the above proportions;

[0017] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0018] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0019] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0020] As a further solution of the present invention: the temperature of the hot pressing composite is controlled at 150-200°C, which is adjusted according to the characteristics of the substrate and the adhesive, the hot pasting speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot pasting pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0021] As a further solution of the present invention: the thickness of the flame retardant honeycomb panel is controlled within 5-20 mm, and the width is controlled within 1000-1500 mm.

[0022] As a further solution of the present invention: the coating step may adopt coating techniques such as reverse roller coating, blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0023] As a further solution of the present invention: the cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0024] The beneficial effects of the present invention are as follows:

[0025] 1. The present invention can improve the stability of the material in a high temperature environment and increase its service life under extreme conditions by adding calcium silicate as an inorganic filler. It contains aluminum hydroxide as a flame retardant, which helps to improve the flame retardant properties of the material, especially in a high temperature environment. Aluminum hydroxide will decompose and release water vapor at high temperature to dilute the oxygen concentration in the combustion zone, and the generated aluminum oxide melt will cover the surface of the material, isolate the air, and prevent the combustion process. In the continuous hot-lamination composite process, by controlling the temperature, hot-lamination speed and hot-lamination pressure of the hot-pressing composite, it can be ensured that the adhesive fully penetrates the substrate and improves the quality of the composite material. DETAILED DESCRIPTION

[0026] The following will be combined with 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 making creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0029] Flame retardants;

[0030] adhesive;

[0031] Base material;

[0032] Inorganic fillers;

[0033] High strength resin;

[0034] Carbon fiber reinforced materials;

[0035] The content of flame retardant is controlled at 20-30%, the content of adhesive is controlled at 5-10%, the content of base material is controlled at 60-75%, the content of inorganic filler is controlled at 5%-30%, the content of high-strength resin is controlled at 10%-30%, and the content of carbon fiber reinforced material is controlled at 5%-15%.

[0036] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

[0037] The high-strength resin is epoxy resin, and the carbon fiber reinforcement material is chopped carbon fiber.

[0038] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0039] Mixing preparation: uniformly mix the flame retardant, adhesive, substrate, inorganic filler, high-strength resin and carbon fiber reinforcement material according to the above proportions;

[0040] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0041] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0042] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0043] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0044] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0045] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0046] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0047] Embodiment 2:

[0048] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0049] Flame retardants;

[0050] adhesive;

[0051] Base material;

[0052] Inorganic fillers;

[0053] The content of the flame retardant is controlled at 20-30%, the content of the adhesive is controlled at 5-15%, the content of the base material is controlled at 60-75%, and the content of the inorganic filler is controlled at 5%-30%.

[0054] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

[0055] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0056] Mixing preparation: uniformly mix the flame retardant, adhesive, base material and inorganic filler according to the above proportions;

[0057] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0058] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0059] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0060] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0061] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0062] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0063] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0064] Embodiment 3:

[0065] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0066] Flame retardants;

[0067] adhesive;

[0068] Base material;

[0069] Inorganic fillers;

[0070] The content of the flame retardant is controlled at 20-30%, the content of the adhesive is controlled at 1-5%, the content of the base material is controlled at 60-75%, and the content of the inorganic filler is controlled at 5%-30%.

[0071] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

[0072] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0073] Mixing preparation: uniformly mix the flame retardant, adhesive, base material and inorganic filler according to the above proportions;

[0074] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0075] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0076] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0077] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0078] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0079] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0080] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0081] Embodiment 4:

[0082] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0083] Flame retardants;

[0084] adhesive;

[0085] Base material;

[0086] Inorganic fillers;

[0087] The content of the flame retardant is controlled at 15-25%, the content of the adhesive is controlled at 5-10%, the content of the base material is controlled at 60-75%, and the content of the inorganic filler is controlled at 1%-5%.

[0088] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

[0089] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0090] Mixing preparation: uniformly mix the flame retardant, adhesive, base material and inorganic filler according to the above proportions;

[0091] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0092] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0093] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0094] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0095] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0096] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0097] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0098] Embodiment 5:

[0099] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0100] Flame retardants;

[0101] adhesive;

[0102] Base material;

[0103] The content of the flame retardant is controlled at 10-20%, the content of the adhesive is controlled at 5-10%, and the content of the base material is controlled at 60-75%.

[0104] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), and the base material is honeycomb paperboard.

[0105] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0106] Mixing preparation: uniformly mix the flame retardant, adhesive and substrate according to the above proportions;

[0107] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0108] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0109] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0110] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0111] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0112] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0113] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0114] Embodiment 6:

[0115] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0116] adhesive;

[0117] Base material;

[0118] The content of adhesive is controlled at 5-10%, and the content of base material is controlled at 60-75%.

[0119] The adhesive is polyvinyl alcohol (PVA) and the substrate is honeycomb paperboard.

[0120] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0121] Mixing preparation: uniformly mix the flame retardant, adhesive, substrate, inorganic filler, high-strength resin and carbon fiber reinforcement material according to the above proportions;

[0122] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0123] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0124] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0125] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0126] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0127] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0128] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0129]

[0130] As can be seen from Examples 1-5, by adding aluminum hydroxide as a flame retardant, the honeycomb panel can effectively suppress the spread of flames when encountering a fire source. Aluminum hydroxide will decompose and release water vapor at high temperatures, thereby diluting the oxygen concentration in the combustion zone, and the generated aluminum oxide melt covers the surface of the material, isolating the air and preventing the combustion process. By adding calcium silicate as an inorganic filler, not only the stability of the material in a high temperature environment can be improved, but also its service life under extreme conditions can be increased. In Examples 1-5, the content of aluminum hydroxide is controlled within a range of 10-30%, and the content of calcium silicate is controlled within a range of 5-30%. This can ensure that the material has sufficient flame retardant effect without excessively reducing other physical properties of the material.

[0131] Embodiment 7:

[0132] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0133] Flame retardants;

[0134] adhesive;

[0135] Base material;

[0136] Inorganic fillers;

[0137] High strength resin;

[0138] Carbon fiber reinforced materials;

[0139] The content of flame retardant is controlled at 20-30%, the content of adhesive is controlled at 5-10%, the content of base material is controlled at 60-75%, the content of inorganic filler is controlled at 5%-30%, the content of high-strength resin is controlled at 10%-30%, and the content of carbon fiber reinforced material is controlled at 5%-15%.

[0140] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

[0141] The high-strength resin is epoxy resin, and the carbon fiber reinforcement material is chopped carbon fiber.

[0142] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0143] Mixing preparation: uniformly mix the flame retardant, adhesive, substrate, inorganic filler, high-strength resin and carbon fiber reinforcement material according to the above proportions;

[0144] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0145] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0146] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0147] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0148] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0149] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0150] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0151] Embodiment 8:

[0152] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0153] Flame retardants;

[0154] adhesive;

[0155] Base material;

[0156] High strength resin;

[0157] Carbon fiber reinforced materials;

[0158] The content of flame retardant is controlled at 20-30%, the content of adhesive is controlled at 5-10%, the content of base material is controlled at 60-75%, the content of high-strength resin is controlled at 5%-15%, and the content of carbon fiber reinforced material is controlled at 5%-15%.

[0159] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), and the base material is honeycomb paperboard.

[0160] The high-strength resin is epoxy resin, and the carbon fiber reinforcement material is chopped carbon fiber.

[0161] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0162] Mixing preparation: uniformly mix the flame retardant, adhesive, base material, high-strength resin and carbon fiber reinforcement material according to the above proportions;

[0163] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0164] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0165] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0166] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0167] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0168] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0169] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0170] Embodiment 9:

[0171] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0172] Flame retardants;

[0173] adhesive;

[0174] Base material;

[0175] High strength resin;

[0176] Carbon fiber reinforced materials;

[0177] The content of flame retardant is controlled at 20-30%, the content of adhesive is controlled at 5-10%, the content of base material is controlled at 60-75%, the content of high-strength resin is controlled at 5%-15%, and the content of carbon fiber reinforced material is controlled at 1%-7%.

[0178] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), and the base material is honeycomb paperboard.

[0179] The high-strength resin is epoxy resin, and the carbon fiber reinforcement material is chopped carbon fiber.

[0180] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0181] Mixing preparation: uniformly mix the flame retardant, adhesive, base material, high-strength resin and carbon fiber reinforcement material according to the above proportions;

[0182] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0183] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0184] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0185] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0186] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0187] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0188] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0189] Embodiment 10:

[0190] A flame retardant honeycomb panel, the flame retardant honeycomb panel is composed of the following adhesives:

[0191] Flame retardants;

[0192] adhesive;

[0193] Base material;

[0194] The content of the flame retardant is controlled at 20-30%, the content of the adhesive is controlled at 5-10%, and the content of the base material is controlled at 60-75%.

[0195] The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), and the base material is honeycomb paperboard.

[0196] A flame retardant honeycomb panel continuous thermal bonding process, the process comprising the following steps:

[0197] Mixing preparation: uniformly mix the flame retardant, adhesive and substrate according to the above proportions;

[0198] Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard;

[0199] Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined;

[0200] Cutting: Cut the hot pressed composite honeycomb panel into required size.

[0201] As a further solution of the present invention: the temperature of hot pressing composite is controlled at 150-200°C, adjusted according to the characteristics of the substrate and the adhesive, the hot lamination speed is controlled at 1-2m / min to ensure the composite effect and continuous production, and the hot lamination pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

[0202] The thickness of the flame retardant honeycomb panel is controlled at 5-20mm, and the width is controlled at 1000-1500mm.

[0203] The coating step can adopt coating techniques such as reverse roller coating, doctor blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

[0204] The cutting step adopts laser cutting technology to improve the cutting accuracy and the quality of the cutting edge.

[0205]

[0206] As can be seen from Examples 7-10, by adjusting the component ratio, especially the content of carbon fiber reinforced material and epoxy resin, different levels of mechanical properties can be obtained. The high bending strength makes these honeycomb panels suitable for occasions with high load-bearing requirements and helps to improve the compressive properties of the material.

[0207] From the above, it can be known that by adding calcium silicate as an inorganic filler, the stability of the material in a high temperature environment can be improved, and its service life under extreme conditions can be increased. Containing aluminum hydroxide as a flame retardant can help improve the flame retardant properties of the material, especially in a high temperature environment. Aluminum hydroxide will decompose and release water vapor at high temperatures to dilute the oxygen concentration in the combustion zone, and the generated aluminum oxide melt will cover the surface of the material, isolating the air and preventing the combustion process. In the continuous hot lamination process, by controlling the temperature, hot lamination speed and hot lamination pressure of the hot pressing composite, it can be ensured that the adhesive fully penetrates the substrate and improves the quality of the composite material.

[0208] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flame retardant honeycomb panel, characterized in that: The flame retardant honeycomb panel is composed of the following adhesives: Flame retardants; adhesive; Base material; Inorganic fillers; High strength resin; Carbon fiber reinforced materials; The content of the flame retardant is controlled at 20-30%, the content of the adhesive is controlled at 5-10%, the content of the base material is controlled at 60-75%, the content of the inorganic filler is controlled at 5%-30%, the content of the high-strength resin is controlled at 10%-30%, and the content of the carbon fiber reinforced material is controlled at 5%-15%.

2. The flame retardant honeycomb panel according to claim 1, characterized in that: The flame retardant is aluminum hydroxide (Al(OH)3), the adhesive is polyvinyl alcohol (PVA), the substrate is honeycomb paperboard, and the inorganic filler is calcium silicate (CaSiO3).

3. The flame retardant honeycomb panel according to claim 1, characterized in that: The high-strength resin is epoxy resin, and the carbon fiber reinforced material is chopped carbon fiber.

4. A flame retardant honeycomb panel continuous thermal bonding process, according to any one of claims 1 to 3, the process comprising the following steps: Mixing preparation: uniformly mix the flame retardant, adhesive, substrate, inorganic filler, high-strength resin and carbon fiber reinforcement material according to the above proportions; Coating: evenly coat the mixed composite material on the surface of the honeycomb paperboard; Hot pressing composite: The coated honeycomb paperboard is subjected to hot pressing treatment to make the composite material and the honeycomb paperboard closely combined; Cutting: Cut the hot pressed composite honeycomb panel into required size.

5. The flame retardant honeycomb panel according to claim 4, characterized in that: The temperature of the hot pressing composite is controlled at 150-200°C, which is adjusted according to the characteristics of the substrate and the adhesive. The hot pressing speed is controlled at 1-2m / min to ensure the composite effect and continuous production. The hot pressing pressure is controlled at 1-2MPa to ensure that the adhesive fully penetrates the substrate.

6. The flame retardant honeycomb panel according to claim 1, characterized in that: The thickness of the flame retardant honeycomb panel is controlled within 5-20 mm, and the width is controlled within 1000-1500 mm.

7. The flame retardant honeycomb panel according to claim 5, characterized in that: The coating step may adopt coating techniques such as reverse roller coating, blade coating or spray coating to ensure that the composite material is evenly and accurately coated on the surface of the honeycomb paperboard.

8. The flame retardant honeycomb panel according to claim 7, characterized in that: The cutting step adopts laser cutting technology to improve cutting accuracy and cutting edge quality.

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