Electric hot melting non-self-adhesive asphalt waterproof coiled material, production method and production device

Abstract

The invention discloses an electric hot melting non-self-adhesive asphalt waterproof coiled material, a production method and a production device. The coiled material sequentially comprises an upper isolating layer, an upper asphalt material coating layer, an electric heating polyester base layer, a lower asphalt material coating layer and a lower isolating layer from top to bottom, each of the upper asphalt material coating layer and the lower asphalt material coating layer comprises a common asphalt material coating layer located in the middle and electric hot melting asphalt material coating layers connected to the two sides of the common asphalt material coating layer; electric heating structures are arranged on the two edge portions of the electric heating polyester tire layer, the coiled material does not need to be heated through open fire, the paving construction function is achieved, and therefore pollution to the environment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of waterproofing membrane processing, and in particular to an electric hot-melt non-self-adhesive asphalt waterproofing membrane, a production method and a production device. Background Art

[0002] Building waterproof materials can be divided into waterproof membranes, waterproof coatings, waterproof plugging materials, rigid waterproof materials, etc. Among them, waterproof membranes are divided into two categories: modified asphalt waterproof membranes and polymer waterproof membranes, accounting for about 65%-70%, while modified asphalt waterproof membranes account for 45-50%. It can be seen that modified asphalt waterproof membranes are the main force of building waterproofing because of their high cost performance.

[0003] Modified asphalt waterproofing membranes are divided into self-adhesive asphalt waterproofing membranes and non-self-adhesive asphalt waterproofing membranes. Self-adhesive asphalt waterproofing membranes are sticky at room temperature and can be directly adhered to the base surface after removing the surface isolation material (membrane). The membranes are directly overlapped and sealed, and do not require open flame heating, which is the so-called cold construction. They have natural advantages in construction in confined spaces or poorly ventilated environments. As the name suggests, non-self-adhesive asphalt waterproofing membranes are not sticky at room temperature. They mainly include elastomer-modified asphalt waterproofing membranes (GB18242), plastomer-modified asphalt waterproofing membranes (GB18243), etc. This type of material is made of modified asphalt such as hot-melt styrene-butadiene rubber (SBS) or random polypropylene (APP) to prepare asphalt coating materials, which are dip-coated with polyester or glass fiber and covered with isolation materials such as isolation membranes on both sides (such as Figure 1 As shown in the figure, during construction, the surface of the coil is heated by 500-600℃ gas to melt the coil coating, and the adjacent coil edges are overlapped and bonded, and spread on the base to form a waterproof layer. This method is called hot melt construction method. This is extremely unfavorable to the development of non-self-adhesive asphalt waterproofing coils (mainly elastomer-modified asphalt waterproofing coils and plastic modified asphalt waterproofing coils). In terms of physical properties, non-self-adhesive asphalt waterproofing coils are impermeable, have high pressure, and excellent waterproof performance. They are a reliable waterproof material, but their open flame heating construction produces serious smoke, which affects the environment and does not conform to the social development orientation. Summary of the invention

[0004] The main purpose of the present application is to provide an electric hot-melt non-self-adhesive asphalt waterproofing membrane, a production method and a production device, which do not require open flame heating to achieve paving construction functions.

[0005] In order to achieve the above-mentioned purpose, in the first aspect, the present application provides an electric hot melt non-self-adhesive asphalt waterproofing membrane, which comprises, from top to bottom, an upper isolation layer, an upper asphalt coating layer, an electric hot polyester tire layer, a lower asphalt coating layer and a lower isolation layer; the upper asphalt coating layer and the lower asphalt coating layer both comprise an ordinary asphalt coating layer located in the middle, and an electric hot melt asphalt coating layer connected to both sides of the ordinary asphalt coating layer; both edge portions of both sides of the electric hot polyester tire layer are provided with electric heating structures;

[0006] The electric hot melt asphalt coating layer includes, by mass percentage, 20-30 parts of the first petroleum asphalt, 20-30 parts of the second petroleum asphalt, 4-8 parts of lubricating oil, 6-10 parts of polymer modified material, 10-20 parts of the first conductive material, 3-6 parts of the second conductive material, 10-20 parts of the heating material, and 5-20 parts of the inorganic filler;

[0007] The non-self-adhesive asphalt coating layer includes, by mass percentage, 20-35 parts of a first petroleum asphalt, 20-35 parts of a second petroleum asphalt, 5-8 parts of lubricating oil, 6-10 parts of a polymer modified material, and 20-35 parts of an inorganic filler.

[0008] Optionally, the width of the non-self-adhesive asphalt coating layer is 5-10 times the width of the electric hot-melt asphalt coating layer.

[0009] Optionally, the electric heating structure is embedded on the surface of the electric heating polyester tire layer.

[0010] Optionally, the electric heating structure is an electric heating sheet or a plurality of electric heating wires.

[0011] Optionally, the upper isolation layer and the lower isolation layer are polyethylene films.

[0012] Optionally, opposite ends of the upper isolation layer and the lower isolation layer are coated with a silicone oil layer.

[0013] In order to achieve the above-mentioned purpose, in a second aspect, the present application provides a method for producing an electric hot melt non-self-adhesive asphalt waterproofing membrane, comprising coating an electric hot polyester tire with a non-self-adhesive asphalt coating layer and a covering layer with an electric hot melt asphalt coating layer, specifically comprising:

[0014] S1. Electric hot melt asphalt coating material configuration: add 20-30 parts of the first petroleum asphalt, 20-30 parts of the second petroleum asphalt, and 4-8 parts of lubricating oil into the batching kettle, start stirring, and heat to 190-205°C; add 6-10 parts of polymer modified material and continue stirring, and stir and melt at 190-205°C for 2.5-3h; add 10-20 parts of the first conductive material, 3-6 parts of the second conductive material, and 10-20 parts of the heating material and stir and disperse for 1-2h; add 5-20 parts of inorganic filler and stir and disperse for 0.5-1h, and cool to 180-190°C;

[0015] S2, ordinary asphalt coating material preparation, add 20-35 parts of the first petroleum asphalt, 20-35 parts of the second petroleum asphalt, 5-8 parts of lubricating oil into the batching kettle, start stirring, heat to 190-205 ° C; add 6-10 parts of polymer modified material and continue stirring, stirring and melting at 190-205 ° C for 2.5-3h; add 20-35 parts of inorganic filler and stir and disperse for 0.5-1h, and cool to 180-190 ° C;

[0016] S3, adding the configured electric hot melt asphalt coating material into the cavities on both sides of the dipping tank, and adding the configured non-self-adhesive asphalt covering material into the middle cavity of the dipping tank;

[0017] S4. Start the traction motor and apply the coating material on the electric heating polyester tire.

[0018] In order to achieve the above-mentioned purpose, in a third aspect, the present application provides a production device for an electric hot melt non-self-adhesive asphalt waterproofing roll material, comprising an electric hot polyester tire unwinding rack, a dipping tank, a roll material thickness control mechanism, an isolation film composite mechanism, a cooling mechanism and a roll material winding rack arranged in sequence;

[0019] The tank body of the dipping tank is divided into electric hot melt asphalt coating dipping tanks on both sides and a common asphalt coating dipping tank in the middle by a first partition and a second partition along the width direction of the electric hot polyester tire, and the first partition and the second partition are both provided with gaps for the coil to pass through;

[0020] The electric hot melt asphalt coating dipping tank is provided with an electric hot melt asphalt coating, and the electric hot melt asphalt coating includes, in percentage by mass, 20-30 parts of a first petroleum asphalt, 20-30 parts of a second petroleum asphalt, 4-8 parts of lubricating oil, 6-10 parts of a polymer modified material, 10-20 parts of a first conductive material, 3-6 parts of a second conductive material, 10-20 parts of a heating material, and 5-20 parts of an inorganic filler; the ordinary asphalt coating dipping tank is provided with an ordinary asphalt coating, and the ordinary asphalt coating includes, in percentage by mass, 20-35 parts of a first petroleum asphalt, 20-35 parts of a second petroleum asphalt, 5-8 parts of lubricating oil, 6-10 parts of a polymer modified material, and 20-35 parts of an inorganic filler.

[0021] Optionally, the first partition and the second partition both include a lower partition located below and fixed relative to the dipping tank, and an upper partition located above the lower partition and vertically slidable relative to the dipping tank, a locking structure is provided between the upper partition and the dipping tank to lock the two in at least one working position, and there is a gap between the upper partition and the lower partition for the coil to pass through.

[0022] Optionally, a sealing strip is provided on the lower edge of the upper partition and the upper edge of the lower partition.

[0023] The electric hot-melt non-self-adhesive asphalt waterproofing membrane, production method and production device provided by the present invention have the following beneficial effects compared with the prior art:

[0024] (1) A new type of non-self-adhesive asphalt waterproofing membrane. The overlapped edges are coated with a conductive and heat-generating modified asphalt coating, while the middle part is coated with a common asphalt coating. The two performance / functional coatings are realized by a specific production process and proprietary equipment.

[0025] (2) Brand-new construction method. Use 220V power supply to connect the heating wire or heating sheet to heat the long side of the coiled material, melt it, seal it and overlap it. The construction is convenient and the cost is low. The short side can be sealed with asphalt sealant, double-sided self-adhesive tape and other measures.

[0026] (3) Solve the problem of open flame heating membrane construction. Solve the problem of limited construction of non-self-adhesive asphalt waterproof membrane in confined spaces or poorly ventilated environments, and provide a new way for waterproof construction in such environments.

[0027] (4) Energy conservation and environmental protection. Open flame hot melt construction burns a large amount of natural gas and fossil fuels, resulting in serious smoke and environmental pollution; the high temperature of 500-600℃ is harmful to the health of construction workers in close proximity. Electric hot melt can easily adjust and control the melting degree of the coating material to meet the requirements of bonding construction (120-130℃ coating material melts), turn off the heating, effectively control the generation of smoke, and do not have to face the scorching high temperature, which is construction-friendly.

[0028] (5) It is convenient for waterproof repair in the later stage. More than 95% of leakage is caused by incomplete sealing of the overlapped edge. If there is leakage in the overlapped edge in the later stage, it can be repaired by heating it with electricity, which is simple and quick.

[0029] (6) A special structure of the dipping tank is designed, which is composed of an electric hot-melt asphalt coating dipping tank and a common asphalt coating dipping tank, and sealing measures are adopted to prevent material leakage. A special production process is used to ensure that the coiled material described in the present invention can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The schematic embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0031] Figure 1 It is a schematic diagram of the prior art;

[0032] Figure 2 This is a schematic diagram of an electric hot melt non-self-adhesive asphalt waterproofing membrane;

[0033] Figure 3 is a schematic diagram of the production device;

[0034] Figure 4 yes Figure 3 Sectional view at AA;

[0035] Figure 5 It is a schematic diagram of the first partition or the second partition.

[0036] Wherein: 1. upper insulating layer; 2. upper asphalt coating layer; 3. electric heating polyester tire layer; 4. lower asphalt coating layer; 5. lower insulating layer; 6. ordinary asphalt coating layer; 7. electric heating molten asphalt coating layer; 8. electric heating structure; 9. electric heating polyester tire unwinding rack; 10. dipping tank; 11. coil thickness control mechanism; 12. insulating film composite mechanism; 13. cooling mechanism; 14. coil winding rack; 15. first partition; 16. second partition; 17. sealing strip; 18. upper partition; 19. lower partition; 20. silicone oil layer. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0040] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0041] In addition, the term "plurality" shall mean two or more.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] like Figure 2 As shown, the electric hot melt non-self-adhesive asphalt waterproofing membrane in the present invention includes a five-layer structure, namely, from top to bottom, it includes an upper isolation layer 1, an upper asphalt coating layer 2, an electric hot polyester tire layer 3, a lower asphalt coating layer 4 and a lower isolation layer 5; the upper asphalt coating layer 2 and the lower asphalt coating layer 4 both include an ordinary asphalt coating layer 6 located in the middle, and an electric hot melt asphalt coating layer 7 connected to both sides of the ordinary asphalt coating layer 6; the two edge portions of the two side surfaces of the electric hot polyester tire layer 3 are provided with electric heating structures 8.

[0044] The upper isolation layer 1 and the lower isolation layer 5 are made of high-density polyethylene film with a thickness of (1.0-1.5) threads. Ordinary non-self-adhesive asphalt coils generally use low-density polyethylene isolation membranes. Reasons: (1) Safety needs. High-density polyethylene film has better electrical insulation, which can avoid leakage when the coil is powered on and heated, thereby improving construction safety; (2) Melting point factor. High-density polyethylene film has a higher melting point than low-density polyethylene film, reaching 140-160°C, which is 20-30°C higher than low-density polyethylene isolation membrane. The construction of ordinary non-self-adhesive asphalt coils by open flame heating requires the isolation membrane to melt rapidly due to excessive fire, so it is more appropriate to use low-density polyethylene isolation membrane with a lower melting point. However, the coil construction of the present invention does not require the melting of the isolation membrane. During construction, the isolation membrane 10 cm above and below the adjacent coils coated with silicone oil is turned up, and the coating material is pressed tightly. After electric heating, it can be compacted.

[0045] Secondly, in order to facilitate the overlapping during construction, the upper isolation layer 1 and the lower isolation layer 5 are coated with a silicone oil layer at one opposite end. Here, if the left end of the upper isolation layer 1 has a silicone oil layer, the right end of the lower isolation layer 5 has a silicone oil layer. This is to facilitate the overlapping of adjacent rolls during construction. Ordinary non-self-adhesive asphalt roll isolation membranes do not have this requirement.

[0046] In this embodiment, the width of the ordinary asphalt coating layer 6 is 5-10 times the width of the electric hot melt asphalt coating layer 7, preferably 8 times. For example, the electric hot melt asphalt coating layer 7 on both sides is set to 10 cm, while the ordinary asphalt coating layer 6 in the middle is set to 80 cm.

[0047] The difference between the electric heating polyester tire layer 3 and the common non-self-adhesive asphalt coiled material is that the polyester tire used in the waterproof coiled material of the present invention is embedded with nickel-cadmium electric heating wires or nickel-cadmium electric heating sheets within 10cm in the longitudinal direction on both sides, and the embedding surfaces on both sides are opposite. If electric heating wires are used, 3-4 wires are embedded in parallel within 10cm, and the diameter of the electric heating wires is 0.3-0.6mm; if electric heating sheets are used, 2-3 pieces are embedded in parallel within 10cm, and the thickness of the electric heating sheets is 0.3-0.5mm and the width is 1cm-2cm. According to the weight per square area, it is divided into various specifications such as 200g and 250g.

[0048] Asphalt coating material, ordinary non-self-adhesive asphalt coiled material asphalt coating material is uniform (coil transverse width 100cm), made of SBS rubber or APP plastic, lubricating oil and other components modified asphalt, the coiled material middle coating material of the present invention is the same as the ordinary non-self-adhesive asphalt coiled material coating material, but the longitudinal direction of each side 10cm, two sides of the total 20cm coating material and the middle 80cm coating material are different, the two coating materials in addition to the requirements of GB18242 or GB18243 physical properties, the biggest difference is that the coating materials on both sides are required to be conductive, and have self-heating and melting characteristics after power is turned on, which is called electric hot melt asphalt coating material. To achieve the purpose, the formula of the electric hot melt asphalt coating material is as follows (by mass percentage).

[0049] The electric hot melt asphalt coating material is as follows:

[0050] First Petroleum Asphalt 20-30

[0051] Second petroleum asphalt 20-30

[0052] Lubricating oil 4-8

[0053] Polymer modified materials 6-10

[0054] First conductive material 10-20

[0055] Second conductive material 3-6

[0056] Heating material 10-20

[0057] Inorganic filler 5-20

[0058] illustrate:

[0059] The first petroleum asphalt is high-grade petroleum asphalt, such as commercially available 70#, 90#, 120# petroleum asphalt. High-grade petroleum asphalt is rich in asphalt oil and asphalt grease, which is beneficial to the low-temperature performance and adhesive performance of waterproof membranes.

[0060] The second petroleum asphalt is low-grade petroleum asphalt, such as commercially available 10# and 30# petroleum asphalt. Low-grade petroleum asphalt is rich in asphaltenes, which is beneficial to the high-temperature performance of waterproof membranes.

[0061] Lubricating oil is a kind of low molecular weight aromatic hydrocarbon and straight chain alkane oil, such as commercially available 32# base oil, 64# base oil, etc. Lubricating oil is beneficial to the low temperature performance of waterproof membrane.

[0062] Polymer modified materials are divided into rubber and resin. Rubber modified asphalt waterproofing membrane (standard GB18242) is made of asphalt modified by multiple components such as linear or star-shaped thermoplastic rubber (such as SBS styrene-butadiene rubber); plastic modified asphalt waterproofing membrane (standard GB18243) is made of asphalt modified by plastic resin components such as APP, PP, PE, etc.

[0063] The first conductive material is a type of metal powder that increases the conductivity of modified asphalt, such as iron powder, aluminum powder, iron oxide powder, aluminum oxide powder, etc., with a fineness of 800-1200 mesh. This type of material itself has low resistance and does not generate obvious heat when powered on. It mainly increases the conductivity of the coating.

[0064] The second conductive material is a type of non-metallic good conductor powder, such as graphite powder, which serves as a supplement to the conductive performance of the coating material.

[0065] The heating material is a material that can generate significant heat after being energized, and quickly and uniformly increase the temperature of the coating material as a whole. In the present invention, nickel-chromium powder or iron-chromium-aluminum alloy powder is used, and the fineness is 800-1200 mesh. This type of material has a high resistivity. After being energized, each heating powder in the coating material generates a thermal effect through the contact and current transmission of the first conductive material and the second conductive material, and the temperature of the coating material is quickly and uniformly increased until it melts and meets the bonding requirements.

[0066] The inorganic filler is stone powder, talcum powder, etc., with a fineness of 200-300 mesh.

[0067] The formula of common asphalt coating is as follows:

[0068] First Petroleum Asphalt 20-35

[0069] Second petroleum asphalt 20-35

[0070] Lubricating oil 5-8

[0071] Polymer modified materials 6-10

[0072] Inorganic filler 20-35

[0073] illustrate:

[0074] The first petroleum asphalt is a high-grade petroleum asphalt, such as commercially available 70#, 90#, and 120# petroleum asphalt.

[0075] The second petroleum asphalt is low-grade petroleum asphalt, such as commercially available 10# and 30# petroleum asphalt.

[0076] Lubricating oil is a type of low molecular weight aromatic hydrocarbon and straight chain alkane oil, such as commercially available 32# base oil, 64# base oil, etc.

[0077] Polymer modified materials are divided into rubber and resin. Rubber modified asphalt waterproofing membrane (standard GB18242) is made of asphalt modified by multiple components such as linear or star-shaped thermoplastic rubber (such as SBS styrene-butadiene rubber); plastic modified asphalt waterproofing membrane (standard GB18243) is made of asphalt modified by plastic resin components such as APP, PP, PE, etc.

[0078] The inorganic filler is stone powder, talcum powder, etc., with a fineness of 200-300 mesh.

[0079] The coating material preparation process includes the configuration of electric hot-melt asphalt coating material and the configuration of ordinary asphalt coating material;

[0080] The configuration of electric hot melt asphalt coating material includes:

[0081] According to the above formula 1, the first petroleum asphalt, the second petroleum asphalt and the lubricating oil are measured and added into the batching kettle, stirring is started, and the temperature is heated to 190-205°C.

[0082] Continue stirring, add polymer modified material, stir and melt at 190-205°C for 2.5-3h.

[0083] Add the first conductive material, the second conductive material and the heat generating material and stir and disperse for 1-2 hours.

[0084] Add inorganic filler, stir and disperse for 0.5-1h, and cool to 180-190℃.

[0085] Sampling inspection shows that the high temperature and low temperature performances of the coating material meet the standard requirements; the viscosity meets the production requirements.

[0086] Common asphalt coating configuration includes:

[0087] According to the above formula 2, the first petroleum asphalt, the second petroleum asphalt and the lubricating oil are measured and added into the batching kettle, stirring is started, and the temperature is heated to 190-205°C.

[0088] Continue stirring, add polymer modified material, stir and melt at 190-205°C for 2.5-3h.

[0089] Add inorganic filler, stir and disperse for 0.5-1h, and cool to 180-190℃.

[0090] Sampling inspection shows that the high temperature and low temperature performances of the coating material meet the standard requirements; the viscosity meets the production requirements.

[0091] Manufacturing process description:

[0092] (1) Place the electric heating polyester tire according to Figure 3 The schematic diagram shows that the polyester carcass is passed from the electric heating polyester carcass unwinding rack to the coil thickness control mechanism. The carcass passes through the partition seam of the dipping tank. The polyester carcass is 80cm wide in the ordinary asphalt coating tank and 10cm wide in the electric heating melt asphalt coating tank.

[0093] (2) Add the prepared electric hot melt asphalt coating material into the dipping tanks on both sides, and add the prepared ordinary asphalt coating material into the dipping tank in the middle.

[0094] (3) The traction motor is started, and the coating material is coated on the electric heating polyester tire. The thickness of the coil material is controlled by the coil material thickness control mechanism. The excess material is scraped off and returned to the corresponding dipping tank. Then, the high-density polyethylene isolation film is applied from top to bottom, and the coil material is cooled and rolled to form the waterproof coil material of the present invention. The specific structure of the coil material thickness control mechanism is not the innovation of the present application. For example, the coil material thickness control mechanism can be controlled by cooperating with the upper and lower rollers, that is, the lower roller is only arranged to rotate, while the upper roller can not only rotate but also adjust the distance between the upper roller and the lower roller, thereby controlling the thickness of the coil material.

[0095] Product performance is as follows:

[0096] The electric hot-melt non-self-adhesive asphalt waterproofing membrane not only has the performance of ordinary non-self-adhesive asphalt waterproofing membrane (GB18242 elastomer-modified asphalt waterproofing membrane, GB18243 plastomer-modified asphalt waterproofing membrane), but also has its own characteristics. The main properties are shown in Table 1 for physical properties and Table 2 for application performance.

[0097] Table 1 Physical properties

[0098]

[0099]

[0100] Table 2 Application performance

[0101]

[0102] Example

[0103] Example 1

[0104] The utility model relates to an electric hot-melt non-self-adhesive asphalt waterproofing membrane, which is composed of an electric hot-melt asphalt coating material, a common asphalt coating material, an electric hot polyester base, a high-density polyethylene film and the like.

[0105] The preparation method of the electric hot melt asphalt coating is as follows: add 22 parts of 70# petroleum asphalt, 22 parts of 10# petroleum asphalt, and 6 parts of 32# base oil into the batching kettle, start stirring, and heat to 190-205℃. Add 6.8 parts of thermoplastic styrene-butadiene rubber, stir and melt at 190-205℃ for 2.5h. Add 12 parts of iron powder, 5 parts of aluminum powder, 4 parts of graphite powder, and 13 parts of nickel-chromium powder, stir and disperse for 1.5h. Add 9.2 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, sample and test, and set aside.

[0106] The preparation method of ordinary asphalt coating is as follows: add 30 parts of 70# petroleum asphalt, 20 parts of 10# petroleum asphalt and 5 parts of lubricating oil into the batching kettle, start stirring, and heat to 190-205℃. Add 7.5 parts of styrene-butadiene rubber, stir and melt at 190-205℃ for 2.6h. Add 37.5 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, conduct random inspection and test, and set aside.

[0107] according to Figure 3 The process requires the electric heating polyester tire to be threaded. The electric heating melting asphalt coating material and the ordinary asphalt coating material are respectively added into the corresponding dipping tank. The traction motor is started, the coating material is coated on the electric heating polyester tire, the thickness of the roll is adjusted, and then a high-density polyethylene isolation film is applied on the upper and lower sides, cooled, and rolled to form the waterproof roll material of the present invention.

[0108] Example 2

[0109] The utility model relates to an electric hot-melt non-self-adhesive asphalt waterproofing membrane, which is composed of an electric hot-melt asphalt coating material, a common asphalt coating material, an electric hot polyester base, a high-density polyethylene film and the like.

[0110] The preparation method of the electric hot melt asphalt coating is as follows: add 28 parts of 70# petroleum asphalt, 17 parts of 10# petroleum asphalt, and 5 parts of 32# base oil into the batching kettle, start stirring, and heat to 190-205℃. Add 8.2 parts of thermoplastic styrene-butadiene rubber, stir and melt at 190-205℃ for 2.8h. Add 12 parts of iron oxide powder, 2 parts of aluminum oxide powder, 3 parts of graphite powder, and 15 parts of nickel-chromium powder, stir and disperse for 1.8h. Add 9.8 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, sample and test, and set aside.

[0111] The preparation method of ordinary asphalt coating is as follows: add 26 parts of 70# petroleum asphalt, 28 parts of 10# petroleum asphalt and 6 parts of lubricating oil into the batching kettle, start stirring, and heat to 190-205℃. Add 9.2 parts of styrene-butadiene rubber, stir and melt at 190-205℃ for 2.6h. Add 30.8 parts of stone powder filler, stir and disperse for 1h, cool to 180-190℃, conduct random inspection and test, and set aside.

[0112] according to Figure 3 The process requires the electric heating polyester tire to be threaded. The electric heating melting asphalt coating material and the ordinary asphalt coating material are respectively added into the corresponding dipping tank. The traction motor is started, the coating material is coated on the electric heating polyester tire, the thickness of the roll is adjusted, and then a high-density polyethylene isolation film is applied on the upper and lower sides, cooled, and rolled to form the waterproof roll material of the present invention.

[0113] Example 3

[0114] The utility model relates to an electric hot-melt non-self-adhesive asphalt waterproofing membrane, which is composed of an electric hot-melt asphalt coating material, a common asphalt coating material, an electric hot polyester base, a high-density polyethylene film and the like.

[0115] The preparation method of the electric hot melt asphalt coating is as follows: add 24 parts of 70# petroleum asphalt, 21 parts of 10# petroleum asphalt, and 6.5 parts of 32# base oil into the batching kettle, start stirring, and heat to 190-205℃. Add 6.2 parts of APP plastic resin, stir and melt at 190-205℃ for 2.6h. Add 13 parts of iron powder, 4 parts of alumina powder, 3 parts of graphite powder, and 16 parts of nickel-chromium powder, stir and disperse for 1.7h. Add 6.3 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, sample and test, and set aside.

[0116] The preparation method of ordinary asphalt coating is as follows: add 25 parts of 70# petroleum asphalt, 27 parts of 10# petroleum asphalt, and 6.4 parts of lubricating oil into the batching kettle, start stirring, and heat to 190-205℃. Add 6.8 parts of APP plastic resin, stir and melt at 190-205℃ for 2.6h. Add 34.8 parts of stone powder filler, stir and disperse for 0.8h, cool to 180-190℃, conduct random inspection and test, and set aside.

[0117] according to Figure 3 The process requires the electric heating polyester tire to be threaded. The electric heating melting asphalt coating material and the ordinary asphalt coating material are respectively added into the corresponding dipping tank. The traction motor is started, the coating material is coated on the electric heating polyester tire, the thickness of the roll is adjusted, and then a high-density polyethylene isolation film is applied on the upper and lower sides, cooled, and rolled to form the waterproof roll material of the present invention.

[0118] According to the standard test methods of GB18242 elastomer modified asphalt waterproofing membrane and GB18243 plastomer modified asphalt waterproofing membrane, the main mechanical properties of Example 1, Example 2 and Example 3 were tested. The results are shown in Table 3.

[0119] Table 3 Physical properties of the examples

[0120]

[0121] The asphalt coating material on the long side of the coil is heated by power to melt, and the test results after sealing and overlapping are shown in Table 4.

[0122] Table 4 Application performance of the embodiment

[0123]

[0124]

[0125] As can be seen from Table 3, the main mechanical properties of Examples 1 and 2 meet the requirements of GB18242 standard, and the main mechanical properties of Example 3 meet the requirements of GB18243 standard, including a 10 cm edge roll part made of electric hot melt asphalt coating material and an 80 cm wide roll part made of ordinary asphalt coating material.

[0126] As shown in Table 4, Example 1, Example 2, and Example 3 are the characteristic performance test results of the present invention. The peel strength of the overlapped seam after electrothermal fusion exceeds 1.5 N / mm, and 0.3 MPa30min is watertight, indicating that the electrothermal fusion overlap seal is reliable.

[0127] Comparative Example 1

[0128] The waterproof membrane of comparative example 1 is composed of common asphalt coating material, electric heating polyester tire, high-density polyethylene film, etc.

[0129] The preparation method of ordinary asphalt coating is as follows: add 22 parts of 70# petroleum asphalt, 22 parts of 10# petroleum asphalt, and 6 parts of 32# base oil into the batching kettle, start stirring, and heat to 190-205℃. Add 6.8 parts of thermoplastic styrene-butadiene rubber, stir and melt at 190-205℃ for 2.5h. Add 43.2 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, conduct random inspection and test, and set aside.

[0130] The molding process is the same as that of Example 1.

[0131] Comparative Example 2

[0132] The asphalt waterproofing membrane of comparative example 2 is composed of modified asphalt coating material, ordinary asphalt coating material, electric heating polyester tire, high-density polyethylene film, etc.

[0133] The preparation method of modified asphalt coating is as follows: add 28 parts of 70# petroleum asphalt, 17 parts of 10# petroleum asphalt, and 5 parts of 32# base oil to the batching kettle, start stirring, and heat to 190-205℃. Add 8.2 parts of thermoplastic styrene-butadiene rubber, stir and melt at 190-205℃ for 2.8h. Add 12 parts of iron oxide powder, 2 parts of aluminum oxide powder, and 3 parts of graphite powder, stir and disperse for 1.8h. Add 24.8 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, sample and test, and set aside.

[0134] The preparation method of ordinary asphalt coating is the same as that in Example 2.

[0135] The molding process is the same as that of Example 2.

[0136] Comparative Example 3

[0137] The asphalt waterproofing membrane of comparative example 3 is composed of modified asphalt coating material, ordinary asphalt coating material, electric heating polyester tire, high-density polyethylene film, etc.

[0138] The preparation method of modified asphalt coating is as follows: add 24 parts of 70# petroleum asphalt, 21 parts of 10# petroleum asphalt, and 6.5 parts of 32# base oil into the batching kettle, start stirring, and heat to 190-205℃. Add 6.2 parts of APP plastic resin, stir and melt at 190-205℃ for 2.6h. Add 16 parts of nickel-chromium powder and stir and disperse for 1.7h. Add 26.3 parts of stone powder filler, stir and disperse for 0.6h, cool to 180-190℃, sample and test, and set aside.

[0139] The preparation method of ordinary asphalt coating is the same as that in Example 3.

[0140] The molding process is the same as that of Example 3.

[0141] The test results of the coils formed by Comparative Examples 1, 2 and 3 show that the mechanical properties of the waterproof coils of the three comparative examples can meet the requirements of Table 1, because the maximum tensile force, elongation and other indicators are related to the carcass, and the carcass used in the three comparative examples is the same as that in the embodiment. The heat resistance, low temperature flexibility, water impermeability and other properties are not closely related to the special ingredients of the formula of the present invention, such as conductive material 1, conductive material 2, and heating material, but are related to the polymer modified material and its dosage, asphalt proportion, etc. Therefore, the heat resistance, low temperature flexibility and water impermeability of the coils formed by Comparative Examples 1, 2 and 3 meet the technical index requirements of Table 1.

[0142] However, in terms of workability, there is a significant difference between the comparative example and the example.

[0143] Compared with Example 1, the formula of Comparative Example 1 does not add conductive materials or heating materials, but the tire body uses an electric heating polyester tire. After the construction is energized, the heating wire / sheet in the middle of the coil quickly heats up, and the coating material around the heating wire / sheet melts quickly. However, since the coating material lacks good thermal conductivity, the heat cannot be quickly conducted to the entire coating material layer, resulting in the coating material around the heating wire / sheet quickly heating up, generating a large amount of smoke, and even burning the polyester tire body.

[0144] Comparative Example 2 Compared with Example 2, the formula of Comparative Example 2 adds conductive materials, but no heating materials. After the construction is powered on, the heating wire / sheet quickly heats up. Since the coating material has thermal conductivity, the heat is transferred from the inside to the outside, and the coating layer gradually melts from the inside to the outside. Finally, the overlapping edges can be bonded to meet the requirements of joint peel strength and impermeability in Table 2. However, due to the inside-to-outside radiation heat transfer, it takes a long time for the surface to melt and meet the bonding conditions, and the construction efficiency is slow. Especially when the ambient temperature is low, it takes longer for the surface of the coating material to melt and reach the ideal construction conditions. Example 2 has heating materials. After power is turned on, the coating material generates heat from the inside to the outside as a whole, and the melting efficiency is high and uniform.

[0145] Comparative Example 3 Compared with Example 3, the formula of Comparative Example 3 adds heating material but no conductive material. After power is turned on, the heating wire / sheet quickly heats up, but the coating material lacks good conductivity, and the heating material is in a dispersed phase in the coating material and cannot conduct electricity to generate heat. The result is similar to that of Comparative Example 1, and the coil generates a lot of smoke, and the tire body has the risk of burning.

[0146] like Figure 3-Figure 5 As shown, in addition, this embodiment also provides a production device for electric hot melt non-self-adhesive asphalt waterproofing membrane, including an electric hot polyester tire unwinding rack 9, a dipping tank 10, a membrane thickness control mechanism 11, a separator composite mechanism 12, a cooling mechanism 13 and a membrane winding rack 14 arranged in sequence;

[0147] like Figure 4As shown, the tank body of the dipping tank 10 is divided into the electric hot melt asphalt coating material dipping tank 10 located on both sides and the common asphalt coating material dipping tank 10 located in the middle by the first partition 15 and the second partition 16 along the width direction of the electric hot polyester tire, and the first partition 15 and the second partition 16 are both provided with gaps for the coil to pass through;

[0148] The electric hot melt asphalt coating material dipping tank 10 is provided with electric hot melt asphalt coating material, and the ordinary asphalt coating material dipping tank 10 is provided with ordinary asphalt coating material.

[0149] like Figure 5 As shown, the first partition 15 and the second partition 16 both include a lower partition 19 located below and fixed relative to the dipping tank 10, and an upper partition 18 located above the lower partition 19 and vertically slidably arranged relative to the dipping tank 10. A locking structure is provided between the upper partition 18 and the dipping tank 10 to lock the two in at least one working position. A gap is provided between the upper partition 18 and the lower partition 19 for the coil to pass through. The specific structure of the locking structure is not the innovation of the present application and will not be repeated here. The gap thickness can be adjusted to match different production specifications.

[0150] In order to improve the sealing effect, a sealing strip 17 is provided on the lower edge of the upper partition 18 and the upper edge of the lower partition 19 .

[0151] In addition, in order to allow the coiled material to be completely immersed in the dipping tank, a pressure roller assembly is also provided in the tank cavity. The pressure roller assembly includes a central shaft located in the gap, a first roller sleeve, a second roller sleeve and a third roller sleeve respectively rotatably sleeved on the central shaft, the first roller sleeve and the third roller sleeve are respectively located in the electric hot melt asphalt coating dipping tank, the second roller sleeve is located in the ordinary asphalt coating dipping tank, the central shaft is fixedly connected to the corner of the upper partition 18, the above structure can effectively prevent material from flowing, and can also move with the upper partition 18.

[0152] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electric hot melt non-self-adhesive asphalt waterproofing membrane, characterized in that: It includes, from top to bottom, an upper isolation layer, an upper asphalt coating layer, an electric heating polyester tire layer, a lower asphalt coating layer and a lower isolation layer; the upper asphalt coating layer and the lower asphalt coating layer both include a common asphalt coating layer located in the middle and an electric heating melt asphalt coating layer connected to both sides of the common asphalt coating layer; both edge portions of both sides of the electric heating polyester tire layer are provided with electric heating structures; The electric hot melt asphalt coating layer includes, by mass percentage, 20-30 parts of the first petroleum asphalt, 20-30 parts of the second petroleum asphalt, 4-8 parts of lubricating oil, 6-10 parts of polymer modified material, 10-20 parts of the first conductive material, 3-6 parts of the second conductive material, 10-20 parts of the heating material, and 5-20 parts of the inorganic filler; The common asphalt coating layer comprises, by mass percentage, 20-35 parts of a first petroleum asphalt, 20-35 parts of a second petroleum asphalt, 5-8 parts of lubricating oil, 6-10 parts of a polymer modified material, and 20-35 parts of an inorganic filler.

2. The electric hot melt non-self-adhesive asphalt waterproofing membrane according to claim 1, characterized in that: The width of the non-self-adhesive asphalt coating layer is 5-10 times the width of the electric hot-melt asphalt coating layer.

3. The electric hot melt non-self-adhesive asphalt waterproofing membrane according to claim 1, characterized in that: The electric heating structure is embedded on the surface of the electric heating polyester tire layer.

4. The electric hot-melt non-self-adhesive asphalt waterproofing membrane according to claim 3, characterized in that: The electric heating structure is an electric heating sheet or a plurality of electric heating wires.

5. The electric hot-melt non-self-adhesive asphalt waterproofing membrane according to claim 1, characterized in that: The upper isolation layer and the lower isolation layer are polyethylene films.

6. The electric hot melt non-self-adhesive asphalt waterproofing membrane according to claim 1, characterized in that: The upper isolation layer and the opposite end of the lower isolation layer are coated with a silicone oil layer.

7. A method for producing an electric hot melt non-self-adhesive asphalt waterproofing membrane, characterized in that: It includes covering the electric heated polyester tire with a common asphalt coating layer and an electric heated melt asphalt coating layer, specifically including: S1. Electric hot melt asphalt coating material configuration: add 20-30 parts of the first petroleum asphalt, 20-30 parts of the second petroleum asphalt, and 4-8 parts of lubricating oil into the batching kettle, start stirring, and heat to 190-205°C; add 6-10 parts of polymer modified material and continue stirring, stirring and melting at 190-205°C for 2.5-3h; add 10-20 parts of the first conductive material, 3-6 parts of the second conductive material, and 10-20 parts of the heating material and stir and disperse for 1-2h; add 5-20 parts of inorganic filler and stir and disperse for 0.5-1h, and cool to 180-190°C; S2, ordinary asphalt coating material preparation, add 20-35 parts of the first petroleum asphalt, 20-35 parts of the second petroleum asphalt, 5-8 parts of lubricating oil into the batching kettle, start stirring, heat to 190-205 ° C; add 6-10 parts of polymer modified material and continue stirring, stirring and melting at 190-205 ° C for 2.5-3h; add 20-35 parts of inorganic filler and stir and disperse for 0.5-1h, and cool to 180-190 ° C; S3, adding the configured electric hot melt asphalt coating material into the cavities on both sides of the dipping tank, and adding the configured ordinary asphalt coating material into the middle cavity of the dipping tank; S4. Start the traction motor and apply the coating material on the electric heating polyester tire.

8. A production device for electric hot-melt non-self-adhesive asphalt waterproofing membrane, characterized in that: It includes an electric heating polyester tire unwinding frame, a dipping tank, a coil thickness control mechanism, an isolation film composite mechanism, a cooling mechanism and a coil winding frame which are arranged in sequence; The tank body of the dipping tank is divided into electric hot melt asphalt coating dipping tanks on both sides and a common asphalt coating dipping tank in the middle by a first partition and a second partition along the width direction of the electric hot polyester tire, and the first partition and the second partition are both provided with gaps for the coil to pass through; The electric hot melt asphalt coating dipping tank is provided with an electric hot melt asphalt coating, and the electric hot melt asphalt coating includes, in percentage by mass, 20-30 parts of a first petroleum asphalt, 20-30 parts of a second petroleum asphalt, 4-8 parts of lubricating oil, 6-10 parts of a polymer modified material, 10-20 parts of a first conductive material, 3-6 parts of a second conductive material, 10-20 parts of a heating material, and 5-20 parts of an inorganic filler; the ordinary asphalt coating dipping tank is provided with an ordinary asphalt coating, and the ordinary asphalt coating includes, in percentage by mass, 20-35 parts of a first petroleum asphalt, 20-35 parts of a second petroleum asphalt, 5-8 parts of lubricating oil, 6-10 parts of a polymer modified material, and 20-35 parts of an inorganic filler.

9. The production device of the electric hot melt non-self-adhesive asphalt waterproofing membrane according to claim 8, characterized in that: The first partition and the second partition both include a lower partition located below and fixed relative to the dipping tank, and an upper partition located above the lower partition and vertically slidable relative to the dipping tank. A locking structure is provided between the upper partition and the dipping tank to lock the two in at least one working position, and a gap is provided between the upper partition and the lower partition for the coil to pass through.

10. The production device of the electric hot melt non-self-adhesive asphalt waterproofing membrane according to claim 9, characterized in that: The lower edge of the upper partition and the upper edge of the lower partition are both provided with sealing strips.

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