Novel multifunctional waterproof coiled material and preparation method thereof

Abstract

The invention discloses a novel multifunctional waterproof coiled material and a preparation method thereof, and relates to the technical field of waterproof coiled materials, the novel multifunctional waterproof coiled material comprises the following raw materials by weight: 50-70 parts of a polymer waterproof base material, 10-15 parts of heat insulation microbeads, 8-12 parts of sound insulation fibers, 3-5 parts of a nanometer self-cleaning material, 5-10 parts of a reinforcing auxiliary agent, 2-5 parts of a binder and 100-120 parts of a matrix layer; the macromolecular waterproof base material is polyurethane generated by reaction of polyether polyol and isocyanate; the heat insulation microbeads are hollow glass microbeads; the sound insulation fibers are polyester fibers or rock wool fibers; the nanometer self-cleaning material is nanometer titanium dioxide; the reinforcing auxiliary agent is carbon black or chopped glass fiber; the binder is a water-based acrylate emulsion; the carcass layer is a glass fiber felt or a polyester felt; according to the novel multifunctional waterproof coiled material and the preparation method thereof, the waterproof function, the heat insulation function, the sound insulation function and the self-cleaning function are integrated, and the limitation that a traditional waterproof coiled material is single in function is overcome.

Description

Technical Field

[0001] The invention relates to waterproof coiled material technology, and in particular to a novel multifunctional waterproof coiled material and a preparation method thereof. Background Art

[0002] In modern construction projects, waterproofing is a key link to ensure the structural stability and service life of buildings. However, traditional waterproofing membranes often have many limitations in practical applications. Over time, due to uneven settlement of the base layer, drastic changes in temperature, natural aging of the material, and erosion by external physical and chemical factors, cracks are prone to appear in waterproofing membranes, leading to leakage problems. These cracks not only reduce the waterproofing effect, but may also cause a series of serious building quality problems, such as structural damage and mold growth. In addition, the existing waterproofing membranes need to be further improved in terms of strength and impermeability to cope with increasingly complex and demanding use environments. Summary of the invention

[0003] The purpose of the present invention is to provide a novel multifunctional waterproof coiled material and a preparation method thereof, so as to solve the above-mentioned deficiencies in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical scheme: a new type of multifunctional waterproof roll material, whose raw materials include, by weight: 50-70 parts of polymer waterproof base material, 10-15 parts of heat-insulating microbeads, 8-12 parts of sound-insulating fibers, 3-5 parts of nano self-cleaning materials, 5-10 parts of reinforcing additives, 2-5 parts of adhesives and 100-120 parts of carcass layers.

[0005] Furthermore, the polymer waterproof base material is polyurethane generated by the reaction of polyether polyol and isocyanate; the heat insulating microspheres are hollow glass microspheres; the sound insulating fibers are polyester fibers or rock wool fibers; the nano self-cleaning material is nano titanium dioxide; the reinforcing agent is carbon black or chopped glass fibers; the binder is a water-based acrylic emulsion; and the carcass layer is glass fiber felt or polyester felt.

[0006] A method for preparing a novel multifunctional waterproof coiled material comprises the following steps:

[0007] S1. Heat the polymer waterproof base material to 80-100°C, stir evenly, add heat-insulating microbeads, sound-insulating fibers, nano self-cleaning materials, reinforcing additives and adhesives in sequence, stir and mix at 120-150°C for 1-2 hours to obtain a waterproof coiled material coating;

[0008] S2, unfolding the carcass layer and evenly coating the waterproof coiled material coating on its surface;

[0009] S3. Put the coated coiled material into an oven for curing to obtain a new multifunctional waterproof coiled material

[0010] Furthermore, the preparation method of the polymer waterproof base material is:

[0011] A1. dehydrating the polyether polyol under reduced pressure at 130° C., adding the dehydrated polyether polyol and isocyanate into a reactor at a weight ratio of 1:1.5-3, and reacting under the action of a catalyst to generate a prepolymer;

[0012] A2, mixing the prepolymer with the chain extender, carrying out a chain extension reaction, and generating an intermediate product;

[0013] A3. Place the intermediate product in a mold, gradually increase the mold temperature to the curing temperature, control the heating rate at 5°C-10°C / min, and maintain it at the curing temperature for 1-3 hours. After the curing is completed, remove the mold from the heating equipment and cool it naturally to room temperature to obtain a polymer waterproof base material.

[0014] Furthermore, the reaction temperature of the reactor A1 is 75°C-82°C, and the reaction time is 2 hours.

[0015] Furthermore, the catalyst described in A1 is N,N-dimethylcyclohexylamine, triethylenediamine or N,N-dimethylbenzylamine.

[0016] Furthermore, the chain extender described in A2 is 1,4-butanediol, ethylene glycol, propylene glycol or neopentyl glycol.

[0017] Furthermore, the curing temperature of A3 is 80°C-120°C.

[0018] Furthermore, the coating thickness of the waterproof coiled material coating in S2 is 1.5-2.5 mm.

[0019] Furthermore, the curing temperature in S3 is 150-180° C., and the curing time is 1-2 hours.

[0020] Compared with the prior art, the present invention provides a novel multifunctional waterproofing membrane and a preparation method thereof, which integrates multiple functions such as waterproofing, heat insulation, sound insulation, and self-cleaning, overcomes the limitation of the single function of traditional waterproofing membranes, can meet the requirements of buildings for multiple performances, reduces the use of different materials in construction, and improves construction efficiency;

[0021] Insulating microbeads can effectively reduce heat transfer, reduce energy consumption of buildings, and improve energy-saving effects. They are in line with the current development concept of green buildings and are of great significance for reducing energy consumption and operating costs. Sound insulation fibers can absorb and block sound transmission, create a quiet environment for the interior, and improve the comfort of living and use. They are especially suitable for places with high requirements for noise control, such as residences, office buildings, schools, etc. Nano self-cleaning materials give the surface of the coil a self-cleaning function, which can decompose pollutants through photocatalysis and other effects in the natural environment, keep the surface of the coil clean and beautiful, reduce the cost and frequency of manual cleaning, and also reflect the environmental protection characteristics. Enhancement additives can enhance the mechanical properties and stability of the coil, improve its tensile strength, tear strength, etc., make the coil more durable, extend its service life, reduce the frequency of maintenance and replacement, and save costs.

[0022] The preparation method of the new multifunctional waterproof membrane is relatively simple, and the membrane has good flexibility and operability, which is convenient for construction workers to lay and install, and can improve construction quality and efficiency and shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1 A schematic flow chart of the overall preparation method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1:

[0027] A novel multifunctional waterproof coiled material, the raw materials of which include by weight: 50-70 parts of polymer waterproof base material, 10-15 parts of heat insulation micro beads, 8-12 parts of sound insulation fiber, 3-5 parts of nano self-cleaning material, 5-10 parts of reinforcing additive, 2-5 parts of adhesive and 100-120 parts of carcass layer.

[0028] The polymer waterproof base material is polyurethane generated by the reaction of polyether polyol and isocyanate; the heat insulating microbeads are hollow glass microbeads; the sound insulating fibers are polyester fibers or rock wool fibers; the nano self-cleaning material is nano titanium dioxide; the reinforcing additive is carbon black or chopped glass fiber; the binder is water-based acrylic emulsion; and the carcass layer is glass fiber felt or polyester felt.

[0029] The specific implementation method is that the heat-insulating micro-beads are evenly distributed in the waterproof coiled material system, aiming to reduce heat transfer and improve the heat-insulating performance of the coiled material. These micro-beads, with their unique structure and material properties, effectively reduce the conduction and radiation of heat energy, thereby maintaining a stable temperature inside the building in hot summer or cold winter environments, improving living comfort, and reducing the energy consumption of air conditioning and heating systems, achieving energy conservation and emission reduction goals. This heat-insulating effect not only helps to reduce energy consumption, but also significantly improves the quality of the indoor environment, providing residents with a more comfortable and pleasant living environment.

[0030] The sound insulation fibers are interwoven and arranged in the coil structure to absorb and block the propagation of sound, giving the coil a sound insulation function. The specially treated fiber material has excellent sound absorption and sound insulation effects, which can effectively reduce the interference of external noise on the indoor environment and create a quiet and comfortable living space. Whether it is traffic noise, industrial noise or noise between neighbors, it can be effectively isolated to improve the quality of living. In addition, the application of sound insulation fibers also enhances the overall strength and durability of the coil, ensuring that it maintains good sound insulation performance during long-term use.

[0031] Nano self-cleaning materials are covered on the surface of the coils. With the help of properties such as photocatalysis, the coils have self-cleaning functions to keep the surface clean and beautiful. The material uses advanced nanotechnology and photocatalytic principles to decompose dirt and organic matter attached to the surface of the coils, such as dust and oil, under sunlight, and converts them into harmless substances to achieve a self-cleaning effect. This not only reduces the frequency and cost of manual cleaning, but also extends the service life of the coils and keeps their appearance neat and beautiful. The introduction of nano self-cleaning materials makes the coils more convenient and efficient in daily maintenance, while improving the overall image of the building.

[0032] The reinforcing agent works synergistically with the polymer waterproof base material and other raw materials to enhance the overall mechanical properties of the coiled material, ensure its stability during use, and extend its service life. The reinforcing agent improves the tensile strength, tear strength and puncture resistance of the coiled material by improving the molecular structure and interface interaction of the material, making it more durable in the face of various external forces. At the same time, the optimized combination of the polymer waterproof base material and other raw materials ensures that the coiled material has good flexibility and ductility, can adapt to the slight deformation of the building caused by temperature changes, prevent the occurrence of cracks, and further improve the comprehensive performance and service life of the coiled material. This multi-level reinforcement design makes the coiled material perform well in practical applications, and can provide reliable waterproof protection whether it is a new construction project or the renovation of old houses.

[0033] Embodiment 2:

[0034] See also Figure 1This embodiment provides a technical solution based on the first embodiment: a method for preparing a novel multifunctional waterproofing membrane, comprising the following steps:

[0035] S1. Heat the polymer waterproof base material to 80-100°C, stir evenly, add heat-insulating microbeads, sound-insulating fibers, nano self-cleaning materials, reinforcing additives and adhesives in sequence, stir and mix at 120-150°C for 1-2 hours to obtain a waterproof coiled material coating;

[0036] S2, unfold the carcass layer and evenly apply the waterproof coil coating on its surface; the coating thickness of the waterproof coil coating is 1.5-2.5mm;

[0037] S3. Put the coated coiled material into an oven for curing at a temperature of 150-180°C for 1-2 hours to obtain a new multifunctional waterproof coiled material.

[0038] The specific implementation method is to first heat the polymer waterproof base material to the range of 80-100°C to ensure that its molecular structure becomes active under the drive of thermal energy, thereby reducing viscosity and improving fluidity, creating favorable conditions for subsequent operations. Continuous and uniform stirring allows the molecules in the base material to be fully dispersed to form a stable and uniform fluid state, laying a solid foundation for the addition of thermal insulation beads, sound insulation fibers, nano self-cleaning materials, reinforcing additives and adhesives.

[0039] The heat-insulating microspheres are hollow glass microspheres. Their unique hollow structure is rich in tiny pores, which effectively blocks heat transfer and builds a solid heat-insulating barrier. When these microspheres are evenly distributed in the coating, they act like micro-insulating units, significantly slowing down the speed of heat conduction inside the coil, protecting the substrate from high temperatures, extending the service life, and maintaining structural stability. The integration of sound-insulating fibers further enhances the acoustic performance of the coil. Whether it is polyester fiber or rock wool fiber, it can form an intricate fiber network structure inside the coil, reflecting, refracting and absorbing sound waves multiple times, greatly reducing the sound wave transmittance, and creating a quiet indoor environment.

[0040] The application of nano self-cleaning materials gives the surface of the coil a long-lasting cleaning ability. With its special nano-scale structure, nano titanium dioxide undergoes a photocatalytic reaction with oxygen and water molecules in the air to generate strong oxidizing substances, such as hydroxyl free radicals. These active ingredients can quickly decompose organic stains on the surface of the coil, including dust, oil and bacteria, keeping the surface clean as new. This feature not only reduces maintenance costs, but also extends the service life of the coil and ensures the stability of its waterproof performance.

[0041] The selection of reinforcing additives is crucial to improving the mechanical strength of the coiled material. The addition of reinforcing materials such as carbon black or chopped glass fibers, by tightly combining with the molecular chains in the polymer waterproof base material, forms a tighter network structure, which significantly enhances the tensile strength, tear strength and impact resistance of the coiled material. This strengthening effect makes the coiled material more stable when facing external forces, less prone to damage, cracking and other problems, and can maintain good waterproof performance even in harsh environments.

[0042] Water-based acrylic emulsion stands out for its excellent bonding performance and good compatibility. It can form a strong bonding layer between the membrane and the waterproof substrate, whether it is concrete, mortar or other common building substrates, it can achieve close fit and effectively prevent the membrane from falling off, hollowing and other phenomena. In addition, the adhesive can also adapt to various extreme environmental conditions, such as high temperature, low temperature, humidity, etc., to ensure the durability and reliability of the bonding effect.

[0043] Glass fiber felt and polyester felt are the first choice for the carcass layer due to their excellent physical properties. Glass fiber felt is known for its high strength, high temperature resistance and dimensional stability, providing a solid skeleton support for the coil; while polyester felt is favored for its good flexibility, tear resistance and chemical corrosion resistance. Before coating, the surface of the carcass layer needs to be carefully checked to remove wrinkles, stains and damaged parts, and to ensure its flatness, cleanliness and integrity through edge trimming and other treatments.

[0044] Use professional coating equipment such as a scraper coater or roller coater to evenly coat the waterproof coil coating on the surface of the carcass layer. During the operation, the coating thickness must be strictly controlled within the range of 1.5-2.5mm to balance waterproof performance and economic benefits. Although a too thick coating can enhance the waterproof effect, it will increase costs and affect construction efficiency; while a too thin coating may not achieve the ideal waterproof effect.

[0045] Curing is an important step to give the coil its final properties. The coated coil needs to be neatly placed in a curing box for heat treatment. The curing temperature needs to be precisely controlled within the range of 150-180°C for about 1-2 hours. This process allows the chemical components in the coating to further undergo cross-linking reactions, forming a dense and stable waterproof structure, while giving the coil excellent waterproof properties and durability. Too high or too low a temperature will affect the curing effect, so it must be strictly controlled.

[0046] After 1-2 hours of high-temperature curing, the coil is completely cured when it is taken out of the curing box. At this time, the cross-polymers in the polymer waterproof base material form a three-dimensional network structure, which gives the coil excellent waterproof performance; the heat insulation, sound insulation and self-cleaning functional materials are also firmly embedded in the waterproof structure, giving full play to their respective roles. The reinforcing additives further enhance the mechanical strength and toughness of the coil, enabling it to resist various external forces. The strong bonding layer formed by the adhesive ensures that the coil fits tightly to the substrate, providing long-term and reliable waterproof protection for the building. The new multifunctional waterproof coil finally obtained has a smooth surface and a dense and uniform internal structure. All performance indicators meet the strict requirements for high-standard waterproof materials in construction projects, providing long-term and reliable waterproof protection for buildings.

[0047] The preparation method of polymer waterproof base material is:

[0048] A1. Dehydrate the polyether polyol under reduced pressure at 130° C., add the dehydrated polyether polyol and isocyanate into a reactor at a weight ratio of 1:1.5-3, and react under the action of a catalyst to generate a prepolymer; the reactor reaction temperature is 75° C.-82° C., the reaction time is 2 hours; the catalyst is N,N-dimethylcyclohexylamine, triethylenediamine or N,N-dimethylbenzylamine;

[0049] The specific implementation method is to first decompress and dehydrate the polyether polyol at a high temperature of 130°C. Polyether polyol is a polymer compound containing multiple hydroxyl groups, and its hydroxyl groups can react with isocyanate to form a prepolymer. However, polyether polyol often retains a certain amount of moisture during the production process. When the moisture reacts with isocyanate, it will react with isocyanate to generate gases such as carbon dioxide, which will not only affect the molecular structure and performance of the prepolymer, but also may cause the reaction system to have undesirable phenomena such as foam and gel, which seriously affects the normal progress of the reaction and the quality of the product. Therefore, before the reaction begins, the polyether polyol is strictly dehydrated.

[0050] After dehydration is completed, the treated polyether polyol and isocyanate are accurately weighed in a weight ratio of 1:1.5-3 and added to the reactor. In the reactor, in order to promote the reaction of polyether polyol and isocyanate, an appropriate amount of catalyst needs to be added. Commonly used catalysts include N,N-dimethylcyclohexylamine, triethylenediamine or N,N-dimethylbenzylamine. These catalysts can reduce the activation energy of the reaction, increase the reaction rate, and make the reaction proceed quickly in a shorter time, thereby improving production efficiency. The temperature of the reactor needs to be strictly controlled at 75℃-82℃, and the reaction time is 2 hours. Within this temperature and time range, polyether polyol and isocyanate can fully react under the action of the catalyst to form a prepolymer with specific structure and performance.

[0051] A2, mixing the prepolymer with the chain extender, carrying out a chain extension reaction, and generating an intermediate product; the chain extender is 1,4-butanediol, ethylene glycol, propylene glycol or neopentyl glycol;

[0052] The specific implementation method is to mix the prepolymer and the chain extender to carry out a chain extension reaction to generate an intermediate product; the added mass of the chain extender is 3%-18% of the added mass of the prepolymer; the chain extender is 1,4-butanediol, ethylene glycol, propylene glycol or neopentyl glycol.

[0053] Chain extenders are compounds containing multiple active hydrogen atoms that can react with isocyanate groups in prepolymers to further extend the molecular chain and increase the molecular weight. Through chain extension reactions, the performance of polymer waterproof base materials can be improved, and their strength, toughness and elasticity can be increased.

[0054] A3. Place the intermediate product in a mold, gradually increase the mold temperature to the curing temperature, control the heating rate at 5°C-10°C / min, and maintain it at the curing temperature for 1-3 hours. After the curing is completed, remove the mold from the heating equipment and cool it naturally to room temperature to obtain a polymer waterproof base material; the curing temperature is 80°C-120°C.

[0055] The specific implementation method is to place the intermediate product in a mold, gradually increase the mold temperature to the curing temperature, and control the heating rate at 5°C-10°C / min. Keep at the curing temperature for 1-3 hours. After the curing is completed, take the mold out of the heating equipment and cool it naturally to room temperature to obtain a polymer waterproof base material. The curing temperature is generally 80°C-120°C. This curing process is a key step in the formation of the final performance of the polymer waterproof base material. Through slow heating and heat preservation treatment at the curing temperature, the intermediate product can fully undergo a cross-linking reaction to form a stable network structure. At the same time, this mild curing condition can avoid defects such as stress concentration and cracking in the material during the curing process, and ensure the quality uniformity and performance stability of the polymer waterproof base material. The polymer waterproof base material after curing and molding has excellent waterproof performance, mechanical properties and chemical corrosion resistance, and can meet the high standard requirements for the base material in the preparation process of waterproof membranes.

[0056] Embodiment three:

[0057] This embodiment provides a technical solution based on the first embodiment: testing the waterproof performance, heat insulation performance, sound insulation performance and self-cleaning ability of the new multifunctional waterproof membrane.

[0058] The waterproof performance of the new multifunctional waterproof membrane was tested according to GB18242-2008 "Elastomer modified bitumen waterproof membrane"; the thermal insulation performance of the new multifunctional waterproof membrane was tested according to GB / T 22588-2008 "Flash method for measurement of thermal diffusion coefficient or thermal conductivity"; the sound insulation performance of the new multifunctional waterproof membrane was tested according to ISO140-3 "Acoustic buildings and sound insulation measurements of building elements Part 3: Laboratory measurement of airborne sound insulation of building elements"; the self-cleaning ability of the new multifunctional waterproof membrane was measured by simulating outdoor light, dust and rain environment with a contact angle meter.

[0059] The waterproof roll material of the present invention adopts a unique formula, integrating the functions of waterproofing, heat insulation, sound insulation, self-cleaning and the like, thereby greatly improving the comprehensive performance of the roll material; the addition of heat insulation micro beads effectively reduces heat transfer and improves the energy-saving effect of the building; the sound insulation fiber can absorb and block the propagation of sound and provide a quiet environment indoors; the nano self-cleaning material enables the surface of the roll material to have a self-cleaning function, thereby keeping the roll material clean and beautiful; the reinforcing additive enhances the mechanical properties and stability of the roll material and prolongs its service life.

[0060] It integrates multiple functions such as waterproofing, heat insulation, sound insulation, and self-cleaning, overcoming the limitation of the single function of traditional waterproof membranes, meeting the building's needs for multiple performances, reducing the use of different materials in construction, and improving construction efficiency; thermal insulation microbeads can effectively reduce heat transfer, reduce the energy consumption of buildings, and improve energy-saving effects, which is in line with the current development concept of green buildings and is of great significance for reducing energy consumption and operating costs; sound insulation fibers can absorb and block sound propagation, creating a quiet environment indoors, and improving the comfort of living and use. It is especially suitable for places with high requirements for noise control, such as residences, office buildings, schools, etc. ; Nano self-cleaning materials give the surface of the roll a self-cleaning function, and can decompose pollutants through photocatalysis and other effects in the natural environment, keeping the surface of the roll clean and beautiful, reducing the cost and frequency of manual cleaning, and also embodying environmental protection characteristics; reinforcing additives can enhance the mechanical properties and stability of the roll, improve its tensile strength, tear strength, etc., make the roll more durable, extend its service life, reduce the frequency of maintenance and replacement, and save costs; its preparation method is relatively simple, and the roll has good flexibility and operability, which is convenient for construction personnel to lay and install, which can improve construction quality and efficiency and shorten the construction period.

[0061] The test results of the waterproof performance, heat insulation performance, sound insulation performance and self-cleaning ability of the new multifunctional waterproof membrane are shown in the following table:

[0062]

[0063] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A new type of multifunctional waterproof membrane, characterized in that: The raw materials include, by weight: 50-70 parts of polymer waterproof base material, 10-15 parts of heat insulation micro beads, 8-12 parts of sound insulation fiber, 3-5 parts of nano self-cleaning material, 5-10 parts of reinforcing additive, 2-5 parts of adhesive and 100-120 parts of carcass layer.

2. A novel multifunctional waterproofing membrane according to claim 1, characterized in that: The polymer waterproof base material is polyurethane generated by the reaction of polyether polyol and isocyanate; the heat insulating microbeads are hollow glass microbeads; the sound insulating fibers are polyester fibers or rock wool fibers; the nano self-cleaning material is nano titanium dioxide; the reinforcing additive is carbon black or chopped glass fibers; the binder is water-based acrylic emulsion; and the carcass layer is glass fiber felt or polyester felt.

3. A method for preparing a novel multifunctional waterproof coiled material, characterized in that: The steps include: S1. Heat the polymer waterproof base material to 80-100°C, stir evenly, add heat-insulating microbeads, sound-insulating fibers, nano self-cleaning materials, reinforcing additives and adhesives in sequence, stir and mix at 120-150°C for 1-2 hours to obtain a waterproof coiled material coating; S2, unfolding the carcass layer and evenly coating the waterproof coiled material coating on its surface; S3. Put the coated coiled material into an oven for curing to obtain a new multifunctional waterproof coiled material.

4. The method for preparing a novel multifunctional waterproof coiled material according to claim 3, characterized in that: The preparation method of the polymer waterproof base material is: A1. dehydrating the polyether polyol under reduced pressure at 130° C., adding the dehydrated polyether polyol and isocyanate into a reactor at a weight ratio of 1:1.5-3, and reacting under the action of a catalyst to generate a prepolymer; A2, mixing the prepolymer with the chain extender, carrying out a chain extension reaction, and generating an intermediate product; A3. Place the intermediate product in a mold, gradually increase the mold temperature to the curing temperature, control the heating rate at 5°C-10°C / min, and maintain it at the curing temperature for 1-3 hours. After the curing is completed, remove the mold from the heating equipment and cool it naturally to room temperature to obtain a polymer waterproof base material.

5. The method for preparing a novel multifunctional waterproof coiled material according to claim 4, characterized in that: The reaction temperature of the reactor A1 is 75°C-82°C, and the reaction time is 2 hours.

6. The method for preparing a novel multifunctional waterproof coiled material according to claim 4, characterized in that: A1 The catalyst is N,N-dimethylcyclohexylamine, triethylenediamine or N,N-dimethylbenzylamine.

7. The method for preparing a novel multifunctional waterproof coiled material according to claim 4, characterized in that: A2 The chain extender is 1,4-butanediol, ethylene glycol, propylene glycol or neopentyl glycol.

8. The method for preparing a novel multifunctional waterproof coiled material according to claim 4, characterized in that: A3 The curing temperature is 80°C-120°C.

9. The method for preparing a novel multifunctional waterproof coiled material according to claim 3, characterized in that: The coating thickness of the waterproof coiled material coating described in S2 is 1.5-2.5mm.

10. The method for preparing a novel multifunctional waterproof coiled material according to claim 3, characterized in that: The curing temperature in S3 is 150-180° C. and the curing time is 1-2 hours.

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