Carbon-saving, flame-retardant and waterproofing roll material for roofing and preparation method thereof

Abstract

The application relates to the technical field of waterproof coiled materials, and particularly discloses a carbon-saving and flame-retardant waterproof coiled material for roofs and a preparation method thereof. The carbon-saving and flame-retardant waterproof coiled material for roofs comprises a protective layer, a base layer and an isolation layer arranged in sequence from top to bottom, both sides of the base layer are provided with asphalt modified layers, the asphalt modified layers are asphalt modified materials, and the asphalt modified materials comprise the following raw materials in parts by weight: 40-60 parts of asphalt, 5-10 parts of SBS elastomers, 10-20 parts of naphthenic oil and 1.6-4.8 parts of functional additives; the functional additives comprise the following raw materials in parts by weight: 0.1-0.3 parts of graphene, 1-3 parts of aromatic oil and 0.5-1.5 parts of quartz powder; the flame-retardant waterproof coiled material can be used in roof waterproof engineering, and has the advantages of waterproofness, good flame retardancy and good tensile resistance.

Description

Technical Field

[0001] This application relates to the technical field of waterproof membranes, and more specifically, it relates to a carbon-saving and flame-retardant waterproof membrane for roofing and its preparation method. Background Technology

[0002] Waterproof membrane is a type of rollable sheet waterproof material and is one of the important varieties of waterproof materials in building engineering. In roof waterproofing projects, with the introduction of relevant policies and the mandatory standard "General Technical Specification for Waterproofing of Buildings and Municipalities", waterproofing system engineering will also face reform. The service life of waterproofing has been raised to a new level. Energy saving, flame retardancy, durability, convenient construction and easy maintenance are all new directions for the research of roofing materials.

[0003] Currently, relevant polymer-modified bitumen waterproof membranes typically include a protective material layer, a modified bitumen layer, a base fabric layer, and an isolation layer. When modified bitumen waterproof membranes are used for exposed roof applications, shale is usually used as the protective material. However, shale material is easily exposed to wind and sun and is prone to peeling off, exposing the modified bitumen layer to sunlight. Furthermore, since the modified bitumen layer is mainly composed of flammable materials, the waterproof membrane absorbs heat when used outdoors, which can easily lead to combustion. Summary of the Invention

[0004] To improve the flame retardancy of waterproof membranes, this application provides a carbon-saving and flame-retardant waterproof membrane for roofing and its preparation method.

[0005] In a first aspect, this application provides a carbon-saving, flame-retardant, and waterproof roofing membrane, employing the following technical solution: A carbon-saving, flame-retardant, and waterproof roofing membrane, comprising a protective layer, a base layer, and an isolation layer arranged sequentially from top to bottom. Both sides of the base layer are provided with asphalt-modified layers, the asphalt-modified layers being composed of asphalt modifiers, the asphalt modifiers comprising the following raw materials in parts by weight:

[0006] 40-60 parts asphalt

[0007] 5-10 parts of SBS elastomer

[0008] 10-20 parts of naphthenic oil,

[0009] Functional additives: 1.6-4.8 parts.

[0010] The functional additive comprises the following raw materials in parts by weight:

[0011] 0.1-0.3 parts of graphene,

[0012] 1-3 parts aromatic oil,

[0013] 0.5-1.5 parts of quartz powder.

[0014] By adopting the above technical solution, naphthenic oil and SBS elastomer have good compatibility with asphalt, which is conducive to the cross-linking of SBS elastomer and asphalt to form a stable network structure, thereby enhancing the structural stability, low-temperature resistance, high-temperature resistance and waterproof performance of the asphalt modified layer.

[0015] Adding functional additives can effectively improve the flame retardancy and tensile strength of waterproof membranes. Utilizing the high thermal conductivity, high melting point, and stability of graphene, the heat insulation, durability, and flame retardancy of waterproof membranes can be effectively improved. Furthermore, the bonds between carbon atoms inside graphene are very flexible, which helps ensure the stability of waterproof membranes in roofing projects. However, graphene itself has a large specific surface area and is prone to agglomeration, resulting in poor dispersibility during processing.

[0016] Aromatic oil is added to the functional additives and mixed with graphene to form an oil-in-powder structure. The aromatic oil acts as a lubricant and coats the surface of graphene, reducing the agglomeration of graphene. At the same time, the benzene ring structure of the aromatic oil and the two-dimensional layered structure of graphene work synergistically to further enhance the flame retardancy and heat insulation of the waterproof membrane.

[0017] Quartz powder possesses excellent mechanical and thermal properties, enabling it to act as a flame retardant. When quartz powder is added to graphene during mixing, on one hand, the quartz powder acts as a grinder, making the graphene surface smoother, reducing agglomeration, and enhancing its dispersibility. On the other hand, due to graphene's low density and light weight, it often floats on the surface of the dispersion system, resulting in poor uniformity. By utilizing graphene's adsorption properties to coat the aromatic oil and quartz powder on its surface, the higher density and weight of the quartz powder compared to graphene allows for more uniform dispersion of the graphene within the system. This not only improves the flame retardant effect and durability of the asphalt modification layer but also increases the thermal insulation of the waterproof membrane, reducing the amount of heat absorbed by asphalt products under sunlight and thus contributing to carbon conservation.

[0018] Preferably, the graphene has a particle size of 50-60 micrometers.

[0019] By adopting the above technical solution, when the particle size of graphene is within this range, it can effectively enhance the flame retardancy and structural stability of waterproof membranes and extend their service life. When the particle size of graphene is too small, the agglomeration effect of graphene is greater, which is not conducive to the dispersion of graphene. When the particle size of graphene is too large, it is not conducive to the combination of graphene with other raw materials in the modified bitumen layer, which is not conducive to extending the flame retardancy and durability of waterproof membranes.

[0020] Preferably, the particle size of the quartz powder is 40-50 micrometers.

[0021] By adopting the above technical solution, when the particle size of quartz powder is within a certain range, the grinding effect of quartz powder on graphene can be fully utilized when quartz powder is mixed with graphene. At the same time, taking advantage of the high density of quartz powder, when quartz powder is coated on the surface of graphene and mixed with other asphalt modifiers, the disadvantage of strong buoyancy of graphene is overcome, and graphene can be evenly dispersed in the entire system, further enhancing the flame retardancy and durability of waterproof membrane.

[0022] Preferably, the asphalt modifier further includes 10-15 parts of talc powder.

[0023] By adopting the above technical solution, talc powder, as an inorganic high-temperature resistant filler, can further enhance the flame retardancy of waterproof membranes. In addition, due to the strong adsorption capacity of talc powder, it can automatically adsorb some naphthenic oil. Since naphthenic oil has some properties of aromatic hydrocarbons and some properties of straight-chain hydrocarbons, naphthenic oil further enhances the compatibility between talc powder and other organic components. During the crosslinking modification of asphalt by SBS elastomer, talc powder is also crosslinked in the network structure of modified asphalt, enhancing the flame retardancy and tensile strength of the modified asphalt layer.

[0024] Preferably, the asphalt modifier further includes 10-15 parts of rubber powder.

[0025] By adopting the above technical solution, the addition of rubber powder is conducive to the formation of a more stable cross-linked network structure of modified asphalt material, while enhancing the bonding strength between modified asphalt material and protective layer and base course, and reducing the occurrence of protective layer detachment.

[0026] Preferably, the protective layer is a stainless steel film or a metal aluminum film.

[0027] By adopting the above technical solutions, stainless steel film and aluminum film as protective layers can further enhance the bonding strength with modified asphalt layer. At the same time, since the rubber powder in modified asphalt is rich in amino acids, it is beneficial to improve the corrosion inhibition and heat insulation properties of aluminum film, and further extend the service life of protective layer.

[0028] Preferably, the base layer is a polyester base fabric.

[0029] By adopting the above technical solution, the modified bitumen material is coated on the polyester base fabric, which ensures the tensile properties of the waterproof membrane. Furthermore, the modified bitumen material and the polyester base fabric have good bonding strength due to the principle of similar compatibility, which further improves the tensile properties and flame retardant properties of the waterproof membrane.

[0030] Secondly, this application provides a method for preparing a carbon-saving, flame-retardant, and waterproof roofing membrane, employing the following technical solution:

[0031] A method for preparing a carbon-saving, flame-retardant, and waterproof roofing membrane includes the following steps:

[0032] S1. Preparation of functional additives: Aromatic oil is mixed with graphene to form an oil-in-powder structure, and then quartz powder is added and mixed evenly to obtain functional additives.

[0033] S2. Preparation of modified asphalt: Mix asphalt, naphthenic oil, SBS elastomer, talc powder and rubber powder according to the specified ratio, heat to 180-190℃ for cross-linking reaction, then add functional additives, stir at constant temperature for 25-35 minutes, and discharge.

[0034] S3. Apply the modified asphalt material obtained in S2 to both sides of the base layer to form a modified asphalt layer with a thickness of 2-3 mm. Then cover it with a protective layer and an isolation layer respectively, and cool it to obtain a waterproof membrane.

[0035] By adopting the above technical solution, the functional additives can improve the flame retardancy and tensile strength of modified asphalt. In the process of preparing the functional additives, the graphene is pre-dispersed, so that the graphene and modified asphalt have good dispersibility when mixed again. In the crosslinking process of modified asphalt, the functional additives are uniformly dispersed and form a uniform crosslinking system together, which improves the flame retardancy, durability and heat insulation of the waterproof membrane.

[0036] In summary, this application has the following beneficial effects:

[0037] 1. Because this application uses graphene, aromatic oil and quartz powder as functional additives, it can effectively improve the flame retardancy and tensile strength of waterproof membrane.

[0038] 2. In this application, the preferred particle size of the quartz powder is 40-50 micrometers, so that the quartz powder can fully exert the grinding effect on the graphene when mixed with graphene. At the same time, taking advantage of the high density of quartz powder, when the quartz powder is coated on the surface of graphene and mixed with other asphalt modifiers, the disadvantage of strong floating of graphene is overcome.

[0039] 3. The method of this application involves first preparing functional additives and then preparing asphalt modifiers. The prepared asphalt modifiers are then applied to both sides of the base layer to form a modified asphalt layer with a thickness of 2-3 mm. After that, a protective layer and an isolation layer are respectively covered and cooled to obtain a waterproof membrane. Thus, a waterproof membrane with good flame retardancy and high durability is obtained. Attached Figure Description

[0040] Figure 1 The graph shows the temperature test results for Example 5.2.

[0041] Figure 2 The graph shows the temperature test results for control group 1.

[0042] Figure 3 The graph shows the temperature test results for control group 2. Detailed Implementation

[0043] Raw material source:

[0044] All raw materials used in the embodiments and preparation examples of this application are commercially available. The following disclosure of the sources of raw materials is for clarification purposes only and should not be construed as limiting the scope of protection.

[0045] CAS number for naphthenic oil: 8562-95-1;

[0046] Asphalt CAS number: 8052-42-4;

[0047] Aromatic oil, viscosity measured at 100℃ is 20-50 mm. 2 / s, flash point is 180-210℃, pour point is 10-15℃, aromatic content is 75-80%;

[0048] Talc CAS: 14807-96-6;

[0049] The adhesive powder has a mesh size of 60, is white and semi-transparent in appearance, has no unpleasant odor, and is free of visible impurities. Its molecular weight is 10,000 to 100,000, contains 18 kinds of amino acids, and has a moisture and inorganic salt content of less than 16% and a protein content of more than 82%.

[0050] Graphene CAS: 1034343-98-0;

[0051] SBS elastomer is a styrene-butadiene-styrene block copolymer.

[0052] Preparation Example (Preparation of Functional Additives)

[0053] Preparation Examples 1.1-1.3

[0054] A functional additive, the preparation method of which is as follows:

[0055] First, 1 kg of aromatic oil and 0.1 kg of graphene are mixed to form an oil-in-powder structure. Then, 0.5 kg of quartz powder is added and mechanically mixed at a speed of 1600 r / min for 30 min to obtain the functional additive.

[0056] The graphene has a particle size of 55 micrometers, and the quartz powder has a particle size of 45 micrometers.

[0057] The amounts of each raw material used in the functional additives prepared in Examples 1.1-1.3 are shown in Table 1.

[0058] Table 1. Raw material amounts (unit: kg) for preparing the dispersed microspheres in Examples 1.1-1.3

[0059] Preparation Example 1.1 Preparation Example 1.2 Preparation Example 1.3 Aromatic oils 1 2 3 graphene 0.1 0.2 0.3 Quartz powder 0.5 1 1.5

[0060] Preparation Examples 2.1-2.4

[0061] A functional additive, which differs from the preparation example 1.2 in that the graphene has a different particle size.

[0062] In Example 2.1, the graphene had a particle size of 50 micrometers.

[0063] The graphene in Preparation Example 2.2 has a particle size of 60 micrometers;

[0064] The graphene in Preparation Example 2.3 had a particle size of 20 micrometers;

[0065] The graphene in Preparation Example 2.4 has a particle size of 80 micrometers.

[0066] Preparation Examples 3.1-3.4

[0067] A functional additive, which differs from Preparation Example 1.2 in that the quartz powder has a different particle size.

[0068] In Example 3.1, the particle size of the quartz powder was 40 micrometers.

[0069] The quartz powder in Preparation Example 3.2 had a particle size of 50 micrometers;

[0070] The quartz powder in Preparation Example 3.3 had a particle size of 25 micrometers;

[0071] The quartz powder in Preparation Example 3.4 had a particle size of 70 micrometers.

[0072] Comparative Preparation Example 1

[0073] A functional additive, which differs from Preparation Example 1.2 in that an equal amount of naphthenic oil is used instead of aromatic oil.

[0074] Comparative Preparation Example 2

[0075] A functional additive, which differs from Preparation Example 1.2 in that an equal amount of paraffin oil is used instead of aromatic oil.

[0076] Comparative preparation example 3

[0077] A functional additive, which differs from Preparation Example 1.2 in that it replaces graphene with an equal amount of graphene oxide.

[0078] Comparative preparation example 4

[0079] A functional additive, which differs from Preparation Example 1.2 in that an equal amount of talc powder is used instead of quartz powder.

[0080] Comparative preparation example 5

[0081] A functional additive, which differs from Preparation Example 1.2 in that the amount of aromatic oil used is 0 kg.

[0082] Comparative preparation example 6

[0083] A functional additive, which differs from Preparation Example 1.2 in that the amount of quartz powder used is 0 kg.

[0084] Example

[0085] Examples 1.1-1.3

[0086] A carbon-saving, flame-retardant, and waterproof roofing membrane includes, from top to bottom, a protective layer, a base layer, and an isolation layer. Both sides of the base layer are provided with asphalt-modified layers. The asphalt-modified layers are composed of asphalt-modified material, which comprises the following raw materials by weight:

[0087] 40kg of asphalt

[0088] 5kg of SBS elastomer

[0089] 10 kg of naphthenic oil

[0090] Functional additives 4.8kg,

[0091] The functional additive was prepared in Preparation Example 1.2;

[0092] A method for preparing a carbon-saving, flame-retardant, and waterproof roofing membrane includes the following steps:

[0093] S1. Preparation of functional additives: Functional additives were prepared according to the preparation method in Preparation Example 1.2;

[0094] S2. Preparation of modified asphalt: Mix asphalt, naphthenic oil and SBS elastomer according to the above ratio, heat to 185℃ and stir, then add functional additives, stir at constant temperature for 30 minutes, and discharge.

[0095] S3. Apply the modified asphalt material obtained in S2 to both sides of the base layer to form a modified asphalt layer. The thickness of the modified asphalt layer is 3mm. Then cover it with a protective layer and an isolation layer respectively, and cool it with cooling water to obtain a waterproof membrane.

[0096] The protective layer is made of aluminum film, the base layer is made of polyester fabric, and the isolation layer is made of polyethylene film.

[0097] The preparation parameters of the asphalt modifiers in Examples 1.1-1.3 are shown in Table 2.

[0098] Table 2. Preparation parameters of asphalt modified materials in Examples 1.1-1.3

[0099] Example 1.1 Example 1.2 Example 1.3 Functional additives Preparation Example 1.2 Preparation Example 1.2 Preparation Example 1.2 Asphalt / kg 40 50 60 SBS elastomer / kg 5 8 10 Naphthenic oil / kg 10 15 20

[0100] Examples 2.1-2.4

[0101] A carbon-saving, flame-retardant, and waterproof roofing membrane, based on Example 1.2, differs in that the functional additives are prepared using Preparation Examples 2.1-2.4.

[0102] Examples 3.1-3.4

[0103] A carbon-saving, flame-retardant, and waterproof roofing membrane, based on Example 1.2, differs in that the functional additives are prepared using Preparation Examples 3.1-3.4.

[0104] Examples 4.1-4.3

[0105] A carbon-saving, flame-retardant, and waterproof roofing membrane, based on Example 1.2, differs in that talc powder is added to the asphalt modifier.

[0106] In Example 4.1, the amount of talc added was 10 kg;

[0107] In Example 4.2, the amount of talc added was 11.8 kg;

[0108] The amount of talc added in Example 4.3 was 15 kg.

[0109] Examples 5.1-5.3

[0110] A carbon-saving, flame-retardant, and waterproof roofing membrane, based on Example 4.2, differs in that adhesive powder is added to the asphalt modifier.

[0111] In Example 5.1, the amount of adhesive powder added was 10 kg;

[0112] In Example 5.2, the amount of adhesive powder added was 12 kg;

[0113] The amount of adhesive powder added in Example 5.3 was 15 kg.

[0114] Comparative Example

[0115] Comparative Examples 1-6

[0116] A carbon-saving, flame-retardant, and waterproof roofing membrane differs from Example 1.2 in that the functional additives are prepared using comparative preparation examples 1-6.

[0117] Comparative Example 7

[0118] A carbon-saving, flame-retardant, and waterproof roofing membrane differs from Example 4.2 in that an equal amount of mica powder is used instead of talc powder.

[0119] Comparative Example 8

[0120] A carbon-saving, flame-retardant, and waterproof roofing membrane differs from Example 5.2 in that an equal amount of silicone rubber is used to replace the adhesive powder.

[0121] Performance testing

[0122] The tests include:

[0123] 1. Combustion performance test

[0124] The tests were conducted on Examples 1-5 and Comparative Examples 1-8 according to the methods specified in GB8624-2012 "Classification of Combustion Performance of Building Materials and Products". The test results are shown in Table 3.

[0125] 2. Tensile property test

[0126] The tests were conducted on Examples 1-5 and Comparative Examples 1-8 according to the methods specified in GB18242-2008 "Elastomer Modified Bituminous Waterproofing Membranes". The test results are shown in Table 3.

[0127] Table 3 Combustion performance and tensile properties test

[0128]

[0129]

[0130] Based on Examples 1.1-1.3 and Comparative Examples 1-4, and in conjunction with Table 3, it can be seen that the flame retardancy and tensile properties of Examples 1.1-1.3 are superior to those of Comparative Examples 1-4. The addition of functional additives can effectively improve the flame retardancy and tensile properties of waterproof membranes. Utilizing the high thermal conductivity, high melting point, and stability of graphene, the heat insulation, durability, and flame retardancy of waterproof membranes can be effectively improved. Furthermore, the connections between carbon atoms within graphene are very flexible, which is beneficial for ensuring the stability of waterproof membranes in roofing projects. However, graphene itself has a large specific surface area and is prone to agglomeration, resulting in poor dispersibility during processing.

[0131] Aromatic oil is added to the functional additives and mixed with graphene to form an oil-in-powder structure. The aromatic oil acts as a lubricant and coats the surface of graphene, reducing the agglomeration of graphene. At the same time, the benzene ring structure of the aromatic oil and the two-dimensional layered structure of graphene work synergistically to further enhance the flame retardancy and structural stability of the waterproof membrane.

[0132] Quartz powder possesses excellent mechanical and thermal properties, enabling it to act as a flame retardant. When quartz powder is added to graphene during mixing, on one hand, the quartz powder acts as a grinder, making the graphene surface smoother, reducing agglomeration, and enhancing its dispersibility. On the other hand, due to graphene's low density and light weight, it often floats on the surface of the dispersion system, resulting in poor uniformity of dispersion. By utilizing graphene's adsorption properties to coat the aromatic oil and quartz powder on its surface, the higher density and weight of the quartz powder compared to graphene allows for more uniform dispersion of the graphene within the system, enhancing the flame retardant effect and durability of the functional additives on the asphalt-modified layer.

[0133] Combining Examples 2.1-2.4 and Example 1.2 with Table 3, it can be seen that Examples 2.1-2.2 and Example 1.2 are superior to Examples 2.3-2.4, indicating that graphene with a particle size in the range of 50-60 micrometers can effectively enhance the flame retardancy and structural stability of waterproof membranes and extend their service life.

[0134] Combining Examples 3.1-3.4 with Table 3, it can be seen that Examples 3.1-3.2 are superior to Examples 3.3-3.4. This indicates that when the particle size of the quartz powder is in the range of 40-50 micrometers, the quartz powder can fully exert its grinding effect on the graphene when mixed with it. At the same time, taking advantage of the high density of the quartz powder, when the quartz powder coats the surface of the graphene and is mixed with other asphalt modifiers, it overcomes the disadvantage of the strong buoyancy of graphene, and can make the graphene uniformly dispersed in the entire system, further enhancing the flame retardancy and durability of the waterproof membrane.

[0135] Combining Examples 4.1-4.3, Comparative Example 7, and Example 1.2 with Table 3, it can be seen that Examples 4.1-4.3 and Comparative Example 7 are superior to Example 1.2. This indicates that talc powder has the advantage of strong adsorption, which can automatically adsorb some naphthenic oil. Since naphthenic oil has some properties of aromatic hydrocarbons and some properties of straight-chain hydrocarbons, naphthenic oil further enhances the compatibility between talc powder and other organic components. During the crosslinking modification of asphalt by SBS elastomer, talc powder is also crosslinked in the network structure of the modified asphalt, enhancing the flame retardant properties and tensile strength of the modified asphalt layer.

[0136] Based on Examples 5.1-5.3, Comparative Example 8, and Example 4.2, and in conjunction with Table 3, it can be seen that the addition of rubber powder is beneficial for the modified asphalt to form a more stable cross-linked network structure, while enhancing the bonding strength between the modified asphalt and the protective layer and the base course, and reducing the occurrence of detachment of the protective layer.

[0137] 3. Carbon-saving and heat-insulating performance test

[0138] Commercially available SBS waterproof membrane was used as control group 1, and commercially available cross-laminated polymer waterproof membrane was used as control group 2. Control group 1, control group 2, and the waterproof membranes of Examples 1.2, 2.3-2.4, 3.3-3.4, 4.2, 5.2, and Comparative Examples 1-8 were exposed to outdoor temperatures of 25°C for 60 minutes, and their surface temperatures were measured. The test results are shown in Table 4. The lower the surface temperature, the better the reflective heat insulation effect of the waterproof membrane.

[0139] Example 5.2, the test results of control group 1 and control group 2 are as follows Figure 1 .

[0140] Table 4. Test Results of Carbon Insulation Performance

[0141] Surface temperature after sun exposure / ℃ Example 1.2 16.8 Example 2.3 20.1 Example 2.4 19.8 Example 3.3 20.2 Example 3.4 19.8 Example 4.2 15.9 Example 5.2 13.0 Comparative Example 1 25.6 Comparative Example 2 25.9 Comparative Example 3 24.7 Comparative Example 4 25.7 Comparative Example 5 28.6 Comparative Example 6 28.9 Comparative Example 7 25.8 Comparative Example 8 26.7 Control group 1 34.1 Control group 2 30.4

[0142] As can be seen from Examples 1.2, 2.3-2.4, and 3.3-3.4, and Table 4, the particle sizes of graphene and quartz powder within the particle size range of this application can better achieve uniform dispersion of graphene. This allows graphene to be uniformly dispersed throughout the system and form a network structure during the crosslinking process of the modified asphalt material. This improves the flame retardant and tensile properties, while also increasing the reflective and heat-insulating properties of the waterproof membrane, resulting in a significant carbon-saving effect.

[0143] Combining Examples 1.2 and Comparative Examples 1-4 with Table 4, it can be seen that in Examples 1.2 and Comparative Examples 1.4, the synergistic effect of quartz powder, graphene and aromatic oil improves the flame retardant and tensile properties, while also increasing the reflective and heat-insulating properties of the waterproof membrane, resulting in a significant carbon-saving effect.

[0144] As can be seen from Examples 1.2, 4.2, and Comparative Example 7, and Table 4, the addition of talc powder further enhances the flame retardant and heat insulation properties of the waterproof membrane.

[0145] Based on Examples 1.2, 5.2, and Comparative Example 8, and in conjunction with Table 4, it can be seen that the addition of adhesive powder helps reduce the detachment of the protective layer, further ensuring the durability and carbon-saving heat insulation properties of the waterproof membrane.

[0146] Combined with Example 5.2 and Control Groups 1-2, and in conjunction with Table 4 and Figure 1-3 It can be seen that, under the same outdoor temperature, different waterproof membranes absorb heat to varying degrees, and the waterproof membrane of this application has a better carbon-saving and heat-insulating effect.

[0147] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A carbon saving, flame-retardant, waterproofing membrane for roofing, characterized in that, The waterproof coiled material comprises a protective layer, a base layer and an isolation layer arranged in sequence from top to bottom, both sides of the base layer are provided with asphalt modified layers, the asphalt modified layers are composed of asphalt modified materials, the asphalt modified materials comprise the following raw materials in parts by weight: Asphalt 40-60 parts, SBS elastomer 5-10 parts, Naphthenic oil 10-20 parts, Functional additive 1.6-4.8 parts, The functional additive comprises the following raw materials in parts by weight: Graphene 0.1-0.3 parts, Aromatic oil 1-3 parts, Quartz powder 0.5-1.5 parts; The functional additive is prepared by the following method: the aromatic oil is mixed with the graphene to form an oil-in-powder structure, then the quartz powder is added and uniformly mixed to obtain the functional additive.

2. The carbon-saving, flame-retardant waterproofing membrane according to claim 1, characterized in that: The particle size of the graphene is 50-60 microns.

3. The carbon-saving, flame-retardant waterproofing membrane according to claim 1, characterized in that: The particle size of the quartz powder is 40-50 microns.

4. The carbon-saving, flame-retardant waterproofing membrane according to claim 1, characterized in that: The asphalt modified material further comprises talc powder 10-15 parts.

5. The carbon saving, flame-retardant waterproofing membrane according to claim 1, wherein: The asphalt modified material further comprises rubber powder 10-15 parts.

6. The carbon-saving, flame-retardant waterproofing membrane according to claim 1, characterized in that: The protective layer is a stainless steel film or a metal aluminum film.

7. The carbon-dioxide-reducing, flame-retardant, waterproofing sheet according to claim 1, characterized in that: The base layer is a polyester base cloth.

8. A process for the preparation of a flame-retardant waterproofing membrane according to any one of claims 1 to 7, characterized in that, The method comprises the following steps: S1, preparing an asphalt modified material: the asphalt, naphthenic oil, SBS elastomer, talc powder and rubber powder are mixed according to the proportion, heated to 180-190 DEG C for crosslinking reaction, then the functional additive is added, constant temperature stirring for 25-35 min, discharging; S2, the asphalt modified material prepared in S2 is coated on both sides of the base layer to form a modified asphalt layer, the thickness of the modified asphalt layer is 2-3 mm, then the protective layer and the isolation layer are covered respectively, cooled to obtain the waterproof coiled material.

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