Self-adhesive waterproof coiled material for high-weather-resistance color steel and preparation method of self-adhesive waterproof coiled material

Abstract

The invention relates to the field of waterproof coiled materials, and discloses a high-weather-resistance self-adhesive waterproof coiled material for color steel and a preparation method thereof, the high-weather-resistance self-adhesive waterproof coiled material comprises 30-40% of a high-molecular polymer, 35-40% of high-performance rubber, 8-10% of a high-performance polymer material, 3-4% of a tackifier, 1-2% of a plasticizer, 1-2% of a stabilizer and 2-5% of a weather-resistance additive; the high-performance polymer material is prepared from a styrene-butadiene-styrene block copolymer and a styrene-isoprene-styrene block copolymer; the high-molecular polymer comprises TPO (Thermoplastic Polyolefin), TPV (Thermoplastic Vulcanizate) and polymer modified asphalt, and the high-performance rubber is specifically butyl rubber; the weather-resistant additive comprises an ultraviolet light absorber, an antioxidant and an anti-aging agent. Through material selection and formula optimization, the weather resistance of the coiled material is remarkably improved, stable performance can be kept for a long time under extreme weather conditions including high temperature, low temperature, ultraviolet radiation and the like, and the service life of the coiled material is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof coiled materials, in particular to a self-adhesive waterproof coiled material for color steel with high weather resistance and a preparation method thereof. Background Art

[0002] At present, with the growing demand for high performance of waterproof materials in the construction industry, the research and development of high-performance waterproof membranes that meet different uses has become an important direction to promote the development of the industry. Color steel structure buildings have been widely used in industrial plants, storage facilities, public buildings and other fields due to their fast construction, low cost and beautiful appearance. However, the waterproofing problem of color steel structures has always been a key factor restricting their long-term safe use. Traditional waterproof materials are prone to aging, cracking, peeling and other problems under extreme climatic conditions, including high temperature, low temperature, strong ultraviolet rays, etc., which leads to building leakage and affects the service life and safety of the building.

[0003] Therefore, developing a high-weather-resistant, self-adhesive, easy-to-construct and environmentally friendly polymer waterproofing membrane has become an important way to solve the waterproofing problem of color steel structure buildings. This project aims to develop a high-weather-resistant self-adhesive waterproofing membrane with superior performance suitable for color steel structures through material formulation optimization and production process improvement to meet the urgent needs of the construction industry. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a highly weather-resistant self-adhesive waterproof membrane for color-coated steel and a preparation method thereof, which solves the problem that traditional waterproof materials are prone to aging, cracking, and peeling under extreme climatic conditions, including high temperature, low temperature, strong ultraviolet rays, etc.

[0005] To achieve the above purpose, the present invention is implemented by the following technical scheme: a highly weather-resistant self-adhesive waterproof coiled material for color steel, comprising 30%-40% of high molecular polymer, 35%-40% of high-performance rubber, 8%-10% of high-performance polymer material, 3%-4% of tackifier, 1%-2% of plasticizer, 1%-2% of stabilizer, and 2%-5% of weather-resistant additive;

[0006] The high-performance polymer material includes: styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer;

[0007] The high molecular polymer includes: TPO, TPV, polymer modified asphalt, and the high performance rubber is specifically butyl rubber;

[0008] The weather-resistant additives include ultraviolet absorbers, antioxidants, and anti-aging agents.

[0009] A method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel comprises the following steps:

[0010] S1. Raw material preparation: weigh the raw materials according to the above ratio, and prepare the required production equipment and tools, including: stirring equipment, coating equipment, calendering equipment, cooling equipment, cutting equipment;

[0011] S2. Preparation of polymer modified asphalt mixture: heat the polymer modified asphalt to 150-160°C, then add TPO and TPV in sequence, keep the stirring temperature at 160-170°C, and stir for 40-50 minutes to ensure uniform mixing; then add styrene-butadiene-styrene block copolymer and styrene-isoprene-styrene block copolymer, continue stirring for 30-40 minutes, and maintain the temperature at 160-170°C; finally add tackifier, plasticizer, stabilizer and weathering additive, stir for 20-30 minutes, and keep the temperature unchanged to obtain a uniform polymer modified asphalt mixture;

[0012] S3. Coil forming: including coating, calendering, cooling, reinforcement layer laying, self-adhesive waterproof layer production, covering layer production, cooling, and cutting steps;

[0013] S4. Quality inspection and packaging: The prepared coils are subjected to quality inspection, including inspection of dimensional accuracy, appearance quality, performance indicators, etc. Qualified coils are packaged with moisture-proof and dust-proof packaging materials.

[0014] Preferably, in step S3, the coil forming includes coating: the prepared polymer modified asphalt mixture is evenly coated on the isolation layer by a coating device.

[0015] Preferably, in step S3, coil forming includes calendering: using calendering equipment to calender the coated material to make it uniform in thickness and smooth in surface, and the calendering temperature is 140°C-150°C.

[0016] Preferably, in step S3, the coil forming includes laying a reinforcement layer: laying a non-woven fabric reinforcement layer on the calendered material.

[0017] Preferably, in step S3, the coiled material forming includes making a self-adhesive waterproof layer: coating a butyl rubber self-adhesive adhesive on the non-woven fabric reinforcement layer to form a self-adhesive waterproof layer.

[0018] Preferably, in step S3, the coil forming includes making a covering layer: making a covering layer on the self-adhesive waterproof layer, the covering layer has excellent sunlight reflection and heat insulation properties, can be made of materials with corresponding properties, and is firmly combined with the self-adhesive waterproof layer through a specific process.

[0019] Preferably, in step S3, the coil forming includes cooling: the formed coil is sent to a cooling device for cooling, and the cooling temperature is controlled at 20°C-30°C.

[0020] Preferably, in step S3, the coiled material forming includes cutting: according to the required size, the cooled coiled material is cut using a cutting device to obtain a highly weather-resistant self-adhesive waterproof coiled material for color steel.

[0021] A highly weather-resistant self-adhesive waterproofing membrane for color-coated steel, the highly weather-resistant self-adhesive waterproofing membrane for color-coated steel as claimed in claim 1, is applied to the field of waterproofing membranes, especially in the field of industrial building roof waterproofing and steel structure workshops.

[0022] The present invention provides a highly weather-resistant self-adhesive waterproof coiled material for color steel and a preparation method thereof. It has the following beneficial effects:

[0023] 1. The present invention significantly improves the weather resistance of the coiled material through material selection and formula optimization, and can maintain stable performance for a long time under extreme climatic conditions, including high temperature, low temperature, ultraviolet radiation, etc., thereby extending the service life of the coiled material.

[0024] 2. The surface of the coiled material of the present invention adopts fluorocarbon film or diffuse reflective metal material, which has excellent thermal insulation performance, can greatly reduce the temperature of the color steel roof, reduce the destructive force caused by thermal expansion and contraction, and fundamentally solve the problems of structural deformation, displacement, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a flow chart of the preparation method of the present invention;

[0026] Figure 2 This is the S3 flow chart of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] Please refer to the attached Figure 1 - Attachment Figure 2 The embodiment of the present invention provides a highly weather-resistant self-adhesive waterproof coiled material for color steel, comprising 40% of high molecular polymer, 37% of high-performance rubber, 10% of high-performance polymer material, 4% of tackifier, 2% of plasticizer, 2% of stabilizer, and 5% of weather-resistant additive;

[0030] The high-performance polymer material includes: styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer;

[0031] The high molecular polymer includes: TPO, TPV, polymer modified asphalt, and the high performance rubber is specifically butyl rubber;

[0032] The weather-resistant additives include: ultraviolet absorbers, antioxidants, and anti-aging agents.

[0033] A method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel comprises the following steps:

[0034] S1. Raw material preparation: weigh the raw materials according to the above ratio, and prepare the required production equipment and tools, including: stirring equipment, coating equipment, calendering equipment, cooling equipment, cutting equipment;

[0035] S2. Preparation of polymer modified asphalt mixture: heat the polymer modified asphalt to 150-160°C, then add TPO and TPV in sequence, keep the stirring temperature at 160-170°C, and stir for 40-50 minutes to ensure uniform mixing; then add styrene-butadiene-styrene block copolymer and styrene-isoprene-styrene block copolymer, continue stirring for 30-40 minutes, and maintain the temperature at 160-170°C; finally add tackifier, plasticizer, stabilizer and weathering additive, stir for 20-30 minutes, and keep the temperature unchanged to obtain a uniform polymer modified asphalt mixture;

[0036] S3. Coil Forming:

[0037] Coating: The prepared polymer modified asphalt mixture is evenly coated on the isolation layer through the coating equipment, and the coating thickness is controlled within a certain range;

[0038] Calendering: Use calendering equipment to calender the coated material to make it uniform in thickness and smooth on the surface. The calendering temperature is 140℃-150℃;

[0039] Laying the reinforcement layer: Lay the non-woven reinforcement layer on the calendered material to ensure close bonding with the underlying material;

[0040] Production of self-adhesive waterproof layer: Coat butyl rubber self-adhesive glue on the non-woven fabric reinforcement layer to form a self-adhesive waterproof layer with moderate coating thickness;

[0041] Fabrication of the covering layer: The covering layer is fabricated on the self-adhesive waterproof layer. The covering layer has excellent sunlight reflection and heat insulation properties and can be made of materials with corresponding properties. The covering layer is firmly bonded to the self-adhesive waterproof layer through a specific process.

[0042] Cooling: The formed coil is sent to the cooling device for cooling. The cooling temperature is controlled at 20℃-30℃ to ensure the stable performance of the coil;

[0043] Cutting: according to the required size, use cutting equipment to cut the cooled coiled material to obtain highly weather-resistant self-adhesive waterproof coiled material for color steel;

[0044] S4. Quality inspection and packaging: The prepared coils are subjected to quality inspection, including dimensional accuracy, appearance quality, performance indicators and other aspects. Qualified coils are packaged with moisture-proof and dust-proof packaging materials to ensure that they are not damaged during storage and transportation.

[0045] Embodiment 1 Beneficial effects: The waterproofing coiled material can maintain stable physical and chemical properties and durability in extreme climates. At the same time, a special self-adhesive layer formula is developed so that the adhesive layer can form a firm bond with the color steel plate without the need for additional adhesives, effectively preventing water penetration and improving the waterproofing effect. At the same time, by making a covering layer, a layer of carbon fluorine film with excellent reflective and heat-insulating properties is formed on the surface of the coiled material, reducing the solar radiation absorption of the color steel roof, reducing the impact of thermal expansion and contraction on the structure, and thus extending the service life of the coiled material.

[0046] Embodiment 2: A highly weather-resistant self-adhesive waterproof membrane for color steel (quick-drying version), comprising 43% high molecular polymer, 31% high-performance rubber, 10% high-performance polymer material, 4% tackifier, 2% plasticizer, 2% stabilizer, 3% weather-resistant additive, and 5% quick-drying agent.

[0047] Beneficial effect of Example 2: On the basis of Example 1, by adding a quick-drying agent, the drying effect of the coiled material is better during the mixed production process, and the production efficiency is faster, which is suitable for use when the production quantity is large and the production cycle is short.

[0048] Embodiment 3: A highly weather-resistant self-adhesive waterproof membrane for color-coated steel (odor-free version), comprising 40% high molecular polymer, 33% high-performance rubber, 10% high-performance polymer material, 4% tackifier, 2% plasticizer, 2% stabilizer, 4% weather-resistant additive, and 5% natural zeolite.

[0049] Beneficial effects of Example 3: On the basis of Example 1, natural zeolite is added to effectively absorb the odor that may be generated during the production and use of the coiled material, thereby improving the comfort of use, reducing the impact of the material on the environment when used, and improving environmental protection.

[0050] Embodiment 4: A highly weather-resistant self-adhesive waterproof membrane for color-coated steel (low-temperature resistant version), comprising 40% high molecular polymer, 33% high-performance rubber, 10% high-performance polymer material, 4% tackifier, 2% plasticizer, 2% stabilizer, 4% weather-resistant additive, and 5% low-temperature resistant additive.

[0051] Beneficial effect of Example 4: On the basis of Example 1, the low-temperature resistant additive is added to further improve the performance of the coiled material in a low-temperature environment. Even in cold climate conditions, the coiled material can maintain good flexibility and waterproof performance, is not easy to crack, and is more suitable for use in areas with lower temperatures.

[0052] Comparative experiment 1: basic performance test experiment

[0053] Experimental process:

[0054] Several samples of the coiled material of Example 1 and existing coiled materials were prepared, each having a size of 100 cm in length and 100 cm in width.

[0055] A universal material testing machine was used to stretch the sample at a speed of 50 mm / min, and the maximum tensile force at break was recorded to determine the tensile strength.

[0056] Place the coiled material sample in a watertight device, apply a water pressure of 0.3MPa, observe whether there is water seepage and record the time it remains watertight.

[0057] Place the sample in an environment of 80°C and observe changes in its appearance and performance

[0058] Experimental conclusion: The high weather-resistant self-adhesive waterproof membrane for color steel in Example 1 performs better in terms of tensile strength, reaching 15N / mm 2 , higher than the existing coiled material 12N / mm 2 In terms of water impermeability, the coil of Example 1 can remain watertight for 48 hours, while the existing coil is 40 hours. In terms of heat resistance, the coil of Example 1 has no obvious deformation and no color change under an environment of 80°C, while the existing coil has slight deformation and slightly darkened color, which shows that the coil of Example 1 has better performance in basic performance and can better adapt to various conditions in actual use.

[0059]

[0060] Comparative experiment 2: Weather resistance test experiment

[0061] Experimental process:

[0062] The two types of coil samples were exposed to the natural environment, and the time nodes were set to 1 month, 3 months, and 6 months.

[0063] At each time point, observe the appearance changes of the coil, such as color change, crack appearance, etc.

[0064] Use professional equipment to test the changes in performance indicators such as tensile strength and elongation at break of the coil

[0065] Experimental conclusion: After the natural environment exposure test, the coiled material of Example 1 had no obvious change in 1 month, slightly lighter in color in 3 months, and very fine cracks appeared in 6 months; while the existing coiled material slightly darkened in color in 1 month, had a small number of fine cracks in 3 months, and more cracks in 6 months. In terms of the change rate of tensile strength and elongation at break, Example 1 was 5% and 8% respectively, which was significantly lower than the 12% and 15% of the existing coiled material. This shows that the coiled material of Example 1 has better weather resistance and can maintain stable performance for a longer time in the natural environment.

[0066]

[0067] Comparative experiment three: bonding performance test experiment

[0068] Prepare several color steel plates with a size of 50 cm in length and 50 cm in width, and paste the coiled material of Example 1 and the existing coiled material on the color steel plates respectively.

[0069] Use a tensile testing machine to stretch at a speed of 20mm / min to measure the bonding strength between the coil and the color steel plate

[0070] Experimental conclusion: The bonding force between the coil of Example 1 and the color steel plate is 80 N / cm, which is significantly higher than the 60 N / cm of the existing coil. This means that the coil of Example 1 can be more firmly attached to the color steel plate in practical applications, effectively preventing water penetration and improving the waterproof effect.

[0071]

[0072]

[0073] Comparative experiment 4: Environmental performance test experiment

[0074] The two types of coil samples were placed in closed spaces respectively, and professional air quality testing equipment was used to test the content of harmful substances in the air.

[0075] Record the initial concentration of harmful substances released by the coil and the concentration changes after a certain period of time

[0076] Experimental conclusion: In terms of the initial concentration of harmful substances, the coil of Example 1 was 10ppm, which was lower than the 15ppm of the existing coil. After 24 hours, the concentration of harmful substances in the coil of Example 1 dropped to 5ppm, while the concentration of harmful substances in the existing coil was 10ppm. This shows that the coil of Example 1 has better environmental performance, releases less harmful substances, and has less impact on the environment and human health.

[0077]

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly weather-resistant self-adhesive waterproof coiled material for color steel, characterized in that: Including high molecular polymer 30% - 40%, high performance rubber 35% - 40%, high performance polymer material 8% - 10%, tackifier 3% - 4%, plasticizer 1% - 2%, stabilizer 1% - 2%, weather resistance additive 2% - 5%; The high-performance polymer material includes: styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer; The high molecular polymer includes: TPO, TPV, polymer modified asphalt, and the high performance rubber is specifically butyl rubber; The weather-resistant additives include ultraviolet absorbers, antioxidants, and anti-aging agents.

2. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 1, characterized in that: The following steps are involved: S1. Raw material preparation: weigh the raw materials according to the above ratio, and prepare the required production equipment and tools, including: stirring equipment, coating equipment, calendering equipment, cooling equipment, cutting equipment; S2. Preparation of polymer modified asphalt mixture: heat the polymer modified asphalt to 150-160°C, then add TPO and TPV in sequence, keep the stirring temperature at 160-170°C, and stir for 40-50 minutes to ensure uniform mixing; then add styrene-butadiene-styrene block copolymer and styrene-isoprene-styrene block copolymer, continue stirring for 30-40 minutes, and maintain the temperature at 160-170°C; finally add tackifier, plasticizer, stabilizer and weathering additive, stir for 20-30 minutes, and keep the temperature unchanged to obtain a uniform polymer modified asphalt mixture; S3. Coil forming: including coating, calendering, cooling, reinforcement layer laying, self-adhesive waterproof layer production, covering layer production, cooling, and cutting steps; S4. Quality inspection and packaging: The prepared coils are subjected to quality inspection, including inspection of dimensional accuracy, appearance quality, performance indicators, etc. Qualified coils are packaged with moisture-proof and dust-proof packaging materials.

3. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, coil forming includes coating: the prepared polymer modified asphalt mixture is evenly coated on the isolation layer through a coating device.

4. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, coil forming includes calendering: using calendering equipment to calender the coated material to make it uniform in thickness and smooth in surface, and the calendering temperature is 140°C-150°C.

5. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, the coil forming includes laying of a reinforcement layer: laying a non-woven reinforcement layer on the calendered material.

6. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, the coiled material forming includes making a self-adhesive waterproof layer: coating a butyl rubber self-adhesive adhesive on the non-woven fabric reinforcement layer to form a self-adhesive waterproof layer.

7. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, the coil forming includes making a covering layer: making a covering layer on the self-adhesive waterproof layer, the covering layer has excellent sunlight reflection and heat insulation properties, can be made of materials with corresponding properties, and is firmly combined with the self-adhesive waterproof layer through a specific process.

8. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, the coil forming includes cooling: the formed coil is sent to a cooling device for cooling, and the cooling temperature is controlled at 20°C-30°C.

9. The method for preparing a highly weather-resistant self-adhesive waterproof coiled material for color steel according to claim 2, characterized in that: In step S3, the coiled material forming includes cutting: according to the required size, the cooled coiled material is cut using a cutting device to obtain a highly weather-resistant self-adhesive waterproof coiled material for color steel.

10. A highly weather-resistant self-adhesive waterproofing membrane for color-coated steel, the highly weather-resistant self-adhesive waterproofing membrane for color-coated steel as claimed in claim 1, which is used in the field of waterproofing membranes, especially in the field of industrial building roof waterproofing and steel structure workshops.

Images