Fireproof veneer

Abstract

The utility model provides a fireproof veneer, and belongs to the technical field of building decoration materials. The fireproof veneer comprises a glass fiber reinforced layer, a flame-retardant adhesive layer and a flame-retardant organic film layer which are sequentially stacked, wherein the glass fiber reinforced layer is made of electronic-grade glass fiber cloth.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of building decoration material, concretely relates to a fireproof veneer. BACKGROUND

[0002] With the rapid development of the construction industry, the requirement for the fireproof performance of building materials is higher and higher, and there is no veneer that can achieve A-level fireproofing alone on the market at present; the strength of traditional veneer materials is relatively low, and it is necessary to lay steel wire mesh or bottom steel plate under the veneer, which not only increases the construction cost, but also reduces the construction efficiency; the flame-retardant function of traditional flame-retardant veneer is mainly realized by adding flame retardants, and the flame retardant composition is easy to precipitate when meeting water vapor, which not only leads to the weakening or even loss of the flame-retardant function of the veneer, but also causes the veneer to be powdered and the structure to be corroded. SUMMARY

[0003] In view of the above technical problems, the utility model provides a fireproof veneer to at least partially solve the above technical problems, and the specific technical solutions provided by the utility model are as follows.

[0004] According to the embodiment of the utility model, a fireproof veneer is provided, which comprises: a glass fiber reinforced layer, a flame-retardant glue layer and a flame-retardant organic film layer which are stacked in sequence; wherein the glass fiber reinforced layer is an electronic glass fiber cloth.

[0005] In the embodiment of the utility model, the fireproof veneer provided by the utility model comprises a glass fiber reinforced layer, a fire-retardant glue layer and a fire-retardant organic film layer. The electronic-grade glass fiber cloth made of electronic-grade glass fiber has good high-temperature resistance, and the glass fiber itself has a high melting point and is not easy to burn in case of fire, which can effectively block the spread of fire and provide the first line of defense for the fireproof veneer. At the same time, the glass fiber cloth has high strength and rigidity, which can provide good support for the entire fireproof veneer, so that it is not easy to deform during use, improving the structural stability and durability of the fireproof veneer. Whether during installation or after long-term use, it can maintain good shape and performance. The fire-retardant glue layer has fire-retardant properties and can prevent or delay the spread of fire when exposed to fire, further enhancing the fireproofing capability of the fireproof veneer. At the same time, it can firmly bond the glass fiber reinforced layer and the fire-retardant organic film layer together, ensuring that the layers do not easily separate in a high-temperature fire environment, maintaining the overall fireproofing performance. The fire-retardant organic film layer as the outermost layer directly contacts the external environment, can quickly respond in the early stage of fire, and through its fire-retardant mechanism, can suppress the burning of the flame and prevent the further transfer of heat to the internal materials. The layers of materials are stacked in turn and bonded by the fire-retardant glue layer, forming a compact overall structure. This structural design allows the fireproof veneer to evenly distribute stress to each layer when subjected to external force impact, avoiding damage caused by excessive local stress, and further improving the overall structural strength and impact resistance. Electronic-grade glass fiber, fire-retardant glue and fire-retardant organic film are common industrial materials, widely available and relatively low in cost, which is conducive to mass production, reduces the production cost of the fireproof veneer and improves its market competitiveness. The structure composed of the glass fiber reinforced layer, the fire-retardant glue layer and the fire-retardant organic film layer is relatively light and thin, which ensures the fireproofing performance while not adding too much weight and thickness to the object to be covered, and is suitable for various application scenarios such as building decoration, furniture manufacturing and electronic device housings, which can meet the dual requirements of material thinning and fireproofing performance in different industries. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 The figure is a structural diagram of the fireproof veneer in the embodiment of the utility model.

[0007] BRIEF DESCRIPTION OF DRAWINGS:

[0008] 11-glass fiber reinforced layer;

[0009] 12-fire-retardant glue layer;

[0010] 13-fire-retardant organic film layer;

[0011] 14-aluminum film layer. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following is combined with specific embodiments, and referring to the drawings, the utility model is further explained in detail.

[0013] In order to solve the problems of low strength of the existing fireproof veneer and the fireproof performance reduction caused by the water vapor easy precipitation of the flame retardant, the utility model provides a kind of fireproof veneer.The fireproof veneer provided by the utility model includes glass fiber reinforced layer, flame-retardant adhesive layer and flame-retardant organic film layer, uses electronic grade glass fiber cloth as reinforcing layer, not only can provide higher strength, but also can resist corrosion and humid environment, avoid the problem of poor durability of current veneer material in corrosion and humid environment

[0014] Figure 1 For the fireproof veneer structure schematic diagram in the utility model embodiment.

[0015] Specifically, according to the embodiment of the utility model, a kind of fireproof veneer is provided, as shown in Figure 1 Including: the glass fiber reinforced layer 11, the flame-retardant adhesive layer 12 and the flame-retardant organic film layer 13 are stacked in sequence;Wherein, the glass fiber reinforced layer 11 is electronic grade glass fiber cloth.

[0016] In the embodiment of the utility model, the fireproof veneer provided by the utility model comprises a glass fiber reinforced layer 11, a fire-retardant glue layer 12 and a fire-retardant organic film layer 13. The electronic-grade glass fiber cloth made of electronic-grade glass fiber has good high-temperature resistance, and the glass fiber itself has a high melting point and is not easy to burn in case of fire, which can effectively block the spread of flames and provide the first line of defense for the fireproof veneer. At the same time, the glass fiber cloth has high strength and rigidity, which can provide good support for the entire fireproof veneer, so that it is not easy to deform during use, improving the structural stability and durability of the fireproof veneer. Whether during installation or after long-term use, it can maintain good shape and performance. The fire-retardant glue layer has fire-retardant properties and can prevent or delay the spread of fire when exposed to fire, further enhancing the fireproofing capability of the fireproof veneer. At the same time, it can firmly bond the glass fiber reinforced layer and the fire-retardant organic film layer together, ensuring that the layers do not easily separate in a high-temperature fire environment, maintaining the overall fireproofing performance. The fire-retardant organic film layer as the outermost layer directly contacts the external environment, can quickly respond in the early stage of fire, and through its fire-retardant mechanism, can inhibit the burning of flames and prevent heat from further transferring to the internal materials. The layers of materials are stacked in turn and bonded by the fire-retardant glue layer, forming a compact overall structure. This structural design allows the fireproof veneer to evenly distribute stress to each layer when subjected to external force impact, avoiding damage caused by excessive local stress, and further improving the overall structural strength and impact resistance. Electronic-grade glass fiber, fire-retardant glue and fire-retardant organic film are common industrial materials with a wide range of sources and relatively low cost, which is conducive to large-scale production, reduces the production cost of the fireproof veneer and improves its market competitiveness. The structure composed of the glass fiber reinforced layer, the fire-retardant glue layer and the fire-retardant organic film layer is relatively light and thin, which ensures the fireproofing performance without adding excessive weight and thickness to the object to be covered, and is suitable for various application scenarios such as building decoration, furniture manufacturing, electronic device housings and other fields, which can meet the dual requirements of material lightness and fireproofing performance in different industries.

[0017] According to the embodiment of the utility model, the electronic-grade glass fiber cloth has a grammage of 50-300g / m 2 . The electronic-grade glass fiber roving is used, a high-performance environmentally friendly glass formula is adopted, which meets the standards of ASTM D578 and ISO 2078, has the advantages of boron-free E glass and E-CR glass, and has better mechanical strength, higher softening temperature, better corrosion resistance, better insulation performance and better temperature impact resistance than traditional E glass. This grammage range (50-300g / m 2) Allow flexible adjustment of the grammage of the glass cloth according to different application scenarios and performance requirements to optimize the fireproof facing performance. For example, for some occasions with higher requirements for flexibility, a lower grammage of glass cloth can be selected; while for environments that need to withstand greater external force and higher fireproof requirements, a higher grammage of glass cloth can be used. At the same time, it can meet the needs of various industries and fields, so that the fireproof facing can be applied to different fields such as buildings, ships and automobiles, adapt to various complex use environments and conditions, and expand the application range of the product.

[0018] According to the embodiment of the utility model, the amount of fire -retardant glue in fire -retardant glue layer 12 is 8-40g / m 2 On the basis of ensuring good bonding of glass reinforced layer 11 and fire -retardant organic film layer 13, this amount range (8-40g / m 2 ) can flexibly adjust the amount of fire -retardant glue according to specific production process and product requirement, realize the optimization and balance of bonding performance, fireproof performance, cost and the like. Under the premise of meeting the basic performance requirements of fireproof facing, the amount of fire -retardant glue is reasonably controlled to improve the comprehensive performance and cost -performance ratio of the product. Different production equipment and process have different requirements for the amount of fire -retardant glue, and the range can adapt to various production conditions, facilitate the adjustment of production manufacturers according to their actual conditions, and improve the production efficiency and stability of product quality.

[0019] According to the embodiment of the utility model, the fire -retardant glue in fire -retardant glue layer 12 is composed of neoprene latex, vulcanizing agent, molecular regulator, thickening agent, tackifying resin, anti -aging agent, fire -retardant agent, curing agent. The weight fraction of each component in fire -retardant glue is: 75-92 parts of neoprene latex, 3-10 parts of vulcanizing agent, appropriate amount of molecular regulator, 0.07-0.10 parts of thickening agent, 5-20 parts of tackifying resin, 1-3 parts of anti -aging agent, 10-30 parts of fire -retardant agent, 5-15 parts of curing agent. The pH of fire -retardant glue is 6-8. Neoprene latex is obtained by modifying polyneoprene emulsion with acrylic resin;Vulcanizing agent includes at least one of sulfur, sulfur monochloride, selenium, tellurium, zinc oxide, magnesium oxide, lead oxide;Molecular regulator includes sodium dodecyl sulfonate;Thickening agent includes at least one of polyacrylamide thickening agent, sodium chloride, monoethanolamine chloride, diethanolamine chloride, potassium chloride, ammonium chloride, sodium sulfate, sodium phosphate, disodium phosphate, ammonium oxide, which can keep fire -retardant glue in a uniform and stable suspension state;Tackifying resin includes at least one of rosin modified tackifying resin, which can effectively improve the bonding strength and toughness of fire -retardant glue;Anti -aging agent includes at least one of p -phenylenediamine anti -aging agent, which can inhibit or delay the oxidative degradation of fire -retardant glue and prolong the service life;Fire -retardant agent includes hydroxyl aluminum;Curing agent includes at least one of water -based neoprene rubber curing agent.

[0020] In the embodiment of the utility model, use fire -retardant glue to make the fiberglass reinforced layer 11 and fire -retardant organic film layer 13 compound, make fire -retardant effect of A level ( according to GB 8624 - 2012 《 building materials and products combustion performance classification 》 record) of fire -retardant veneer. Add aluminum base fire -retardant agent in fire -retardant glue, decompose and release a large amount of water vapor to dilute combustible gas, inhibit combustion spread, and the high -temperature resistant Al2O3 generated simultaneously forms a dense protective layer in the fire -retardant veneer, blocks air and prevents further spread of flame, and can promote the carbonization of the polymer in the fire -retardant glue, adsorb solid particles, and inhibit the generation of dense smoke. The neoprene latex obtained by modifying the polyvinylidene chloride emulsion with acrylic resin is used as the main component in the fire -retardant glue, which is free of organic solvents, low -volatile organic compounds, low odor, green and environmentally friendly, has excellent substrate adhesion and high temperature resistance.

[0021] Specifically, the fire -retardant glue is prepared by the following method: adding neoprene latex to the vulcanizing agent and tackifying resin and mixing uniformly, then adding thickening agent, anti -aging agent, fire -retardant agent and molecular regulator in turn, and adding curing agent before use. The powder in the raw material needs to be added with water first and grinded into slurry on the grinding machine.

[0022] According to the embodiment of the utility model, the thickness of the fire -retardant organic film layer 13 is 0.03-0.05mm, which can ensure that the organic high -molecular film has certain fire -retardant and isolation effect, and will not affect the other properties of the fire -retardant veneer, such as flexibility and air permeability, and can achieve a good balance between fire -retardant performance and other properties. At the same time, it is beneficial to better bond with other layer materials (such as fiberglass cloth, fire -retardant glue layer, etc.), forming a stable composite structure. The fire -retardant organic film layer 13 includes an organic high -molecular film subjected to fire -retardant treatment. The organic high -molecular film includes any one of polypropylene film, polyethylene film and polyethylene terephthalate film. The fire -retardant treatment includes adding aluminum hydroxide and MOF to the organic high -molecular film to produce a fire -retardant organic high -molecular film. Other ways of producing fire -retardant organic high -molecular film material can also be used in the production of fire -retardant veneer in the utility model, and the utility model is not limited to this. Through fire -retardant treatment, the fire -retardant performance of the organic high -molecular film can be significantly improved, so that it is not easy to burn when encountering fire, or can effectively slow down the burning speed and reduce the possibility of flame propagation, thereby enhancing the fire -retardant effect of the entire fire -retardant veneer and providing better fire protection for buildings or equipment. At the same time, it can also reduce the amount of smoke generated by the organic high -molecular film during combustion, reduce the harm of smoke to the human body and the pollution to the environment, improve the visibility of the fire scene, and is beneficial to personnel evacuation and fire rescue work.

[0023] According to the embodiment of the utility model, the fireproof veneer further comprises: an aluminum film layer 14 located on the side of the flame-retardant organic film layer 13 away from the flame-retardant adhesive layer 12. The thickness of the aluminum film layer 14 is 1-10 μm. The aluminum film layer 14 is coated on the flame-retardant organic film layer 13, which can enhance the barrier property of the fireproof veneer and effectively prevent the penetration of gas and water vapor. In addition, the aluminum film also makes the fireproof veneer have certain mechanical strength and tear resistance, which can be applied to various complex environments. The color of the aluminum film can be selected according to actual conditions, and the surface can be a mirror surface or a matte surface.

[0024] Specifically, the fireproof veneer is prepared by the following method: the prepared flame-retardant adhesive is coated on the flame-retardant organic polymer film; the glass fiber cloth is covered on the flame-retardant adhesive and then heated and rolled to obtain the fireproof veneer.

[0025] The utility model is further illustrated by the following examples and related test experiments. In the following detailed description, many specific details are set forth in order to provide a thorough understanding of the embodiments of the utility model. However, it is apparent that one or more embodiments can be implemented without these specific details. Moreover, the details in the following embodiments can be combined into other feasible embodiments without conflict. All instruments, consumables and reagents in the following examples can be obtained from commercial channels unless otherwise specified.

[0026] Example 1

[0027] The fireproof veneer is prepared by the following method in this example 1.

[0028] Firstly, the flame-retardant adhesive is prepared by the following method.

[0029] In 90 parts of chloroprene latex solution, 5 parts of zinc oxide, 3 parts of magnesium oxide, 0.08 parts of ammonium oxide, 1.5 parts of p-phenylenediamine, 12 parts of rosin modified tackifying resin, and 25 parts of hydroxy aluminum are added, and the mixture is fully stirred to obtain a mixed solution. The pH value of the above-mentioned mixed solution is adjusted to 7.08 by using sodium dodecyl sulfonate, and the mixture is fully stirred to obtain a latex. The powder in the raw material needs to be grinded into slurry on the grinding machine before being added into the latex mixed solution. 10 parts of water-based chloroprene rubber curing agent solution is added during on-site use. The curing agent and the latex mixed solution are mixed on site, and used up on the same day.

[0030] Secondly, the fireproof veneer is prepared by using the prepared flame-retardant adhesive.

[0031] The 0.03 mm thick organic polypropylene (PP) film material is laid flat, and an 8 μm aluminum layer has been coated on the film material. The flame-retardant adhesive is applied on the PP film in an amount of 15 g / m 2 The high-strength glass fiber cloth is unwound by the cloth winding machine, and the grammage is 140 g / m 2The fiberglass cloth is aligned and compounded with the organic film material, and after complete lamination, it is rolled and cut after heating at 75°C to obtain the fireproof facing.

[0032] Example 2

[0033] The fireproof facing is prepared by the following method in this example 2.

[0034] First, the fire-retardant glue is prepared by the following method.

[0035] In 90 parts of chloroprene latex solution, 5 parts of zinc oxide, 3 parts of magnesium oxide, 0.08 parts of ammonium oxide, 1.5 parts of p-phenylenediamine, 12 parts of rosin modified tackifying resin, and 25 parts of hydroxy aluminum are added, and fully stirred to obtain a mixed solution; sodium dodecyl sulfonate is used to adjust the pH value of the above mixed solution to 6.97, and fully stirred to obtain a latex solution. The powder in the raw material needs to be first added with water and ground into a slurry on a grinding machine before being added into the latex mixed solution. 12 parts of water-based chloroprene rubber curing agent solution is added during on-site use. The curing agent and the latex mixed solution are mixed on site as needed and used up on the same day.

[0036] Secondly, the fireproof facing is prepared by using the fire-retardant glue prepared above.

[0037] The 0.03mm thick organic PP film material is laid flat, and an 8μm aluminum layer has been coated on the film material. The fire-retardant glue is coated on the PP film in an amount of 15g / m 2 The high-strength fiberglass cloth is unwound by the cloth winding machine, and the grammage is 120g / m 2 The fiberglass cloth is aligned and compounded with the organic film material, and after complete lamination, it is rolled and cut after heating at 75°C to obtain the fireproof facing.

[0038] Example 3

[0039] The fireproof facing is prepared by the following method in this example 3.

[0040] First, the fire-retardant glue is prepared by the following method.

[0041] In 90 parts of chloroprene latex solution, 5 parts of zinc oxide, 3 parts of magnesium oxide, 0.08 parts of ammonium oxide, 1.5 parts of p-phenylenediamine, 12 parts of rosin modified tackifying resin, and 25 parts of hydroxy aluminum are added, and fully stirred to obtain a mixed solution; sodium dodecyl sulfonate is used to adjust the pH value of the above mixed solution to 6.97, and fully stirred to obtain a latex solution. The powder in the raw material needs to be first added with water and ground into a slurry on a grinding machine before being added into the latex mixed solution. 12 parts of water-based chloroprene rubber curing agent solution is added during on-site use. The curing agent and the latex mixed solution are mixed on site as needed and used up on the same day.

[0042] Secondly, the fireproof facing is prepared by using the fire-retardant glue prepared above.

[0043] Lay flat 0.03mm thick organic PP film material, apply fire-retardant glue on the PP film, dosage 25g / m 2 Unwind high-strength glass fiber cloth with a grammage of 110g / m 2 Align and composite the glass fiber cloth with the organic film material, roll and press after heating at 75℃, wind and cut to obtain the fireproof facing.

[0044] Example 4

[0045] The fireproof facing of this example 4 is prepared by the following method.

[0046] First, prepare the fire-retardant glue by the following method.

[0047] Add zinc oxide 5 parts, magnesium oxide 3 parts, ammonium oxide 0.08 parts, p-phenylenediamine 1.5 parts, rosin modified tackifying resin 12 parts, and hydroxy aluminum 10 parts to 90 parts of chloroprene latex solution, fully stir to obtain a mixed solution; adjust the pH value of the above mixed solution to 7.15 using sodium dodecyl sulfonate, fully stir to obtain a latex. The powder in the raw material needs to be ground into a slurry on a grinding machine before being added to the latex mixed solution. Add 10 parts of water-based chloroprene rubber curing agent solution on site. The curing agent and the latex mixed solution are mixed on site as needed, and used up on the same day.

[0048] Second, prepare the fireproof facing using the fire-retardant glue prepared above.

[0049] Lay flat 0.02mm thick organic PP film material, apply fire-retardant glue on the PP film, dosage 30g / m 2 Unwind high-strength glass fiber cloth with a grammage of 120g / m 2 Align and composite the glass fiber cloth with the organic film material, roll and press after heating at 75℃, wind and cut to obtain the fireproof facing.

[0050] Comparative Example 1

[0051] The fireproof facing of this example 4 is prepared by the following method.

[0052] First, prepare the fire-retardant glue by the following method.

[0053] Add zinc oxide 5 parts, magnesium oxide 3 parts, ammonium oxide 0.08 parts, p-phenylenediamine 1.5 parts, rosin modified tackifying resin 12 parts, and hydroxy aluminum 25 parts to 90 parts of chloroprene latex solution, fully stir to obtain a mixed solution; adjust the pH value of the above mixed solution to 7.08 using sodium dodecyl sulfonate, fully stir to obtain a latex. The powder in the raw material needs to be ground into a slurry on a grinding machine before being added to the latex mixed solution. Add 10 parts of water-based chloroprene rubber curing agent solution on site. The curing agent and the latex mixed solution are mixed on site as needed, and used up on the same day.

[0054] Secondly, the fireproof facing is prepared by using the prepared fire-retardant glue.

[0055] Lay flat 0.02mm thick organic PP film material, coat fire-retardant glue on the PP film, dosage 20g / m 2 , spread kraft paper by the cloth winding machine, grammage 100g / m 2 , align and compound the kraft paper with the organic film material, roll and press after heating at 75℃, wind and cut to obtain the fireproof facing.

[0056] Comparative Example 2

[0057] The fireproof facing is prepared by the following method in this comparative example 2.

[0058] Firstly, the fire-retardant glue is prepared by the following method.

[0059] Add 5 parts of zinc oxide, 3 parts of magnesium oxide, 0.08 parts of ammonium oxide, 1.5 parts of p-phenylenediamine, 12 parts of rosin modified tackifying resin, and 25 parts of aluminum hydroxide into 90 parts of chloroprene latex solution, fully stir to obtain a mixed solution; adjust the pH value of the above mixed solution to 7.08 by using sodium dodecyl sulfonate, fully stir to be uniform, and obtain the latex. The powder in the raw material needs to be grinded into slurry on the grinding machine before being added into the latex mixed solution. 10 parts of water-based chloroprene rubber curing agent solution is added on site. The curing agent and the latex are mixed on site, used up on the same day.

[0060] Secondly, the fireproof facing is prepared by using the prepared fire-retardant glue.

[0061] Lay flat 0.02mm thick organic PP film material, coat fire-retardant glue on the PP film, dosage 20g / m 2 , spread aluminum foil by the cloth winding machine, grammage 54g / m 2 , align and compound the aluminum foil with the organic film material, roll and press after heating at 75℃, wind and cut to obtain the fireproof facing.

[0062] Comparative Example 3

[0063] The fireproof facing is prepared by the following method in this comparative example 3.

[0064] Lay flat 0.03mm thick organic PP film material, which has been coated with 8μm aluminum layer, coat commercially available acrylic glue on the PP film, dosage 20g / m 2 , spread high-strength glass fiber cloth by the cloth winding machine, grammage 120g / m 2 , align and compound the glass fiber cloth with the organic film material, roll and press after heating at 75℃, wind and cut to obtain the fireproof facing.

[0065] Further, the fireproof performance of the fireproof facings prepared in the above examples and comparative examples is tested. The test results are shown in Table 1.

[0066] Table 1 Fireproof performance test results of fireproof facings in examples and comparative examples

[0067]

[0068] As can be seen from Table 1, the adhesive curing time of Example 1 and Example 4 and all comparative examples is moderate, which matches the production speed. Example 2 has the problem of curing too fast, which will cause material waste, and Example 3 is slower. The unit area mass of Example 1-Example 4 is between 145-177g / m2, and the unit area mass in the comparative examples varies greatly. Among them, the unit area mass of Example 1 is the largest, and the unit area mass of Example 3 is relatively small, and the unit area mass of Comparative Example 2 is significantly lower than other groups. Different unit area mass is related to the type, amount and ratio of materials used in each example. The relatively light fireproof facing (such as Example 3 and Example 4) is more suitable for application scenarios with certain weight restrictions, such as some interior decoration of buildings or fire protection of special equipment that require light weight; and the heavier Example 1 has more advantages in occasions that require higher strength or stability.

[0069] The top breaking strength of Example 1 is the highest, and that of Example 2-Example 4 decreases in turn; in the comparative examples, the top breaking strength of Comparative Example 3 is higher than that of Example 3 and Example 4, and that of Comparative Example 1 and Comparative Example 2 is far lower than that of other groups. In the examples, the tensile breaking strength of Example 1 is the highest in the longitudinal direction. In the comparative examples, the tensile breaking strength of Comparative Example 3 is higher than that of Example 3 and Example 4, and that of Comparative Example 1 and Comparative Example 2 is far lower than that of other groups. The tensile breaking strength of Example 1-Example 4 decreases in turn in the transverse direction; in the comparative examples, the tensile breaking strength of Comparative Example 3 is higher than that of Example 4, and that of Comparative Example 1 and Comparative Example 2 is far lower than that of other groups. This shows that the fireproof facing of Example 1 has better anti-deformation and anti-damage capacity, and is less likely to be damaged or torn when subjected to external force, which can provide more reliable protection for the protected object. The difference in mechanical properties is related to the performance of the materials of each layer of the fireproof facing, the interlayer bonding force and the overall structure design. For example, the grammage and quality of the glass fiber cloth, the adhesive strength of the fire-retardant glue, and the close fit between the layers will all affect the final mechanical properties. Example 1 achieves a good balance and optimization in these aspects.

[0070] The moisture permeability of each embodiment and the comparative example is relatively small. The moisture permeability reflects the water vapor permeability of the material, and the numerical range indicates that the fireproof facings are generally close in water vapor barrier performance. For some humidity-sensitive application environments, the moisture permeability will affect the use effect of the fireproof facing. For example, in a humid environment, too high moisture permeability will cause water vapor to enter the protected object, affecting its performance; and too low moisture permeability will form water vapor accumulation inside, also having an adverse effect. The relatively low and similar moisture permeability indicates that the fireproof facings are relatively stable in water vapor barrier performance in general environments. The total heat release of 600 s of Examples 1-4 increases in turn, and the total heat release of Comparative Examples 1-3 is significantly higher than that of the examples. The total smoke production of Examples 1-4 gradually increases in the first 600 s, and the total smoke production of the comparative examples is higher than that of the examples. The total heat release of the fireproof facings in the examples is less than that of the comparative examples in 600 s, indicating that the fireproof facings in the examples release almost no heat in the single burning test, have excellent fireproof and heat insulation performance, and can effectively prevent heat transfer in a fire. At the same time, the total smoke production of the fireproof facings in the examples is less than that of the comparative examples in 600 s, indicating that the fireproof facings in the examples produce less smoke during the burning process compared to the comparative examples, which is beneficial to maintaining better visibility when a fire occurs, providing more favorable conditions for personnel evacuation and fire rescue.

[0071] Overall, the embodiments perform better than the comparative examples in multiple indicators of fireproof performance, especially in the total heat release and total smoke production of the single burning test; and Example 1 also performs outstandingly in physical properties such as top breaking strength and tensile breaking strength.

[0072] The above specific embodiments further illustrate the purpose, technical solutions, and advantages of the present application. It should be understood that the above description is only for specific embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A fireproof facing, characterized in that Comprise: Glass fiber reinforced layer, flame-retardant glue layer, flame-retardant organic film layer are stacked in turn; Wherein, the glass fiber reinforced layer is electronic grade glass fiber cloth.

2. The fireproof facing of claim 1, wherein, The electronic grade glass fiber cloth has a grammage of 50-300 g / m 2 .

3. The fireproof facing of claim 1, wherein, The amount of the flame-retardant glue in the flame-retardant glue layer is 8-40 g / m 2 .

4. The fireproof facing of claim 1, wherein, The thickness of the flame-retardant organic film layer is 0.03-0.05mm.

5. The fireproof facing of claim 1, wherein, Also include: Aluminum film layer is located on the side of the flame-retardant organic film layer away from the flame-retardant glue layer.

6. The fireproof facing of claim 5, wherein, The thickness of the aluminum film layer is 1-10μm.

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