TPO self-adhesive waterproofing membrane with aerogel thermal insulation layer

Abstract

The present application relates to waterproof thermal insulation composite material technical field, propose a kind of TPO self-adhesive waterproofing membrane with aerogel thermal insulation layer, from top to bottom in turn include weatherable TPO layer, backing non-woven fabric layer, aerogel thermal insulation layer, self-adhesive layer and release film layer;Weatherable TPO layer extends to one side horizontally and forms lap edge;Weatherable TPO layer includes the following weight parts of raw materials: ethylene-olefin copolymer 40~60 parts, styrene-isoprene-styrene copolymer 5~10 parts, styrene-maleic anhydride copolymer 5~15 parts, polypropylene 10~25 parts, antioxidant 0.1~1.5 parts, light stabilizer 0.1~1.5 parts, flame retardant 5~10 parts, filler 15~30 parts, ultraviolet screen 1~5 parts, antibacterial agent 0.1~1 part.The TPO self-adhesive waterproofing membrane with aerogel thermal insulation layer provided by the present application has excellent weather resistance, waterproof thermal insulation function and good mechanical properties.

Description

Technical Field

[0001] This invention relates to the field of waterproof and thermal insulation composite materials, specifically to a TPO self-adhesive waterproof membrane with an aerogel insulation layer. Background Technology

[0002] Thermoplastic polyolefin (TPO) waterproof membranes have excellent physical and mechanical properties and durability, and are increasingly favored in exposed waterproofing projects; however, existing TPO waterproof membranes only have waterproofing functions and poor thermal insulation performance, which cannot meet the development needs of integrated building energy conservation and thermal insulation.

[0003] Aerogel is a nanoporous lightweight material with extremely low thermal conductivity, and its thermal insulation performance far exceeds that of traditional insulation materials such as rock wool, glass wool, and polystyrene board. However, aerogel itself is brittle, has low strength, and is prone to pulverization. It is easily damaged when molded and constructed alone, and its overall mechanical properties are poor when combined with TPO, which seriously restricts its engineering applications.

[0004] In summary, developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer that combines excellent weather resistance and waterproof and thermal insulation functions, achieves a stable interlayer composite of aerogel and TPO, and has excellent overall mechanical properties has become an urgent technical problem to be solved in this field. Summary of the Invention

[0005] To address the above technical problems, this invention provides a TPO self-adhesive waterproof membrane with an aerogel insulation layer. The TPO self-adhesive waterproof membrane provided by this invention has excellent weather resistance, waterproof and thermal insulation functions, and good mechanical properties, and is especially suitable for integrated waterproof and thermal insulation projects in exposed and complex conditions such as metal roofs and concrete roofs.

[0006] The specific technical solution of the present invention is as follows: According to one aspect of the present invention, a TPO self-adhesive waterproof membrane with an aerogel insulation layer is provided, comprising, from top to bottom, a weather-resistant TPO layer, a backing non-woven fabric layer, an aerogel insulation layer, a self-adhesive layer, and a release film layer; the weather-resistant TPO layer extends horizontally to one side to form an overlap edge; the weather-resistant TPO layer comprises the following raw materials in parts by weight: 40-60 parts of ethylene-olefin copolymer, 5-10 parts of styrene-isoprene-styrene copolymer, 5-15 parts of styrene-maleic anhydride copolymer, 10-25 parts of polypropylene, 0.1-1.5 parts of antioxidant, 0.1-1.5 parts of light stabilizer, 5-10 parts of flame retardant, 15-30 parts of filler, 1-5 parts of ultraviolet shielding agent, and 0.1-1 parts of antibacterial agent.

[0007] In the above technical solution, the ethylene-olefin copolymer includes at least one of ethylene-propylene copolymer and ethylene-octene copolymer.

[0008] In the above technical solution, the backing nonwoven fabric layer comprises a unit area mass of 80~120g / m². 2 Polyester nonwoven fabric.

[0009] In the above technical solution, the aerogel insulation layer comprises the following raw materials in parts by weight: 10-15 parts water, 15-25 parts water-based silicone-acrylic emulsion, 15-25 parts water-soluble saturated polyester resin, 2-5 parts basalt fiber, 10-15 parts hollow glass microspheres, 20-35 parts silica aerogel, 5-10 parts flame retardant, 0.5-1 part dispersant, 0.5-1 part defoamer, and 1-2 parts film-forming aid.

[0010] In the above technical solution, the water-soluble saturated polyester resin includes a first water-soluble saturated polyester resin and a second water-soluble saturated polyester resin with a mass ratio of 4~9:1. The first water-soluble saturated polyester resin has a hydroxyl value of 5~10 KOH mg / g and an acid value of 2~7 KOH mg / g, while the second water-soluble saturated polyester resin has a hydroxyl value of 10~15 KOH mg / g and an acid value of 35~45 KOH mg / g.

[0011] In the above technical solution, the self-adhesive layer includes a hot melt pressure-sensitive adhesive layer or a butyl adhesive layer.

[0012] In the above technical solution, the isolation film layer includes a silicone-coated PE isolation film or an aluminum-coated PET isolation film.

[0013] In the above technical solution, the thickness of the weather-resistant TPO layer is 0.5~1.5mm.

[0014] In the above technical solution, the thickness of the backing nonwoven fabric layer is 0.3~0.5mm.

[0015] In the above technical solution, the thickness of the aerogel insulation layer is 0.1~2mm.

[0016] In the above technical solution, the thickness of the self-adhesive layer is 0.2~1.5mm.

[0017] In the above technical solution, the thickness of the isolation membrane layer is 0.1~0.2mm.

[0018] According to another aspect of the present invention, the present invention also provides a method for preparing the above-mentioned TPO self-adhesive waterproof membrane with an aerogel insulation layer, comprising the following steps: S1. Weather-resistant TPO layer and backing non-woven fabric layer composite: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and hot press the weather-resistant TPO layer with backing non-woven fabric to obtain weather-resistant TPO layer with backing non-woven fabric layer. S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. S3. Self-adhesive layer coating and release film bonding: The self-adhesive layer material is melted and coated on one side of the aerogel insulation layer of the composite layer, and then the release film is bonded and cooled to obtain TPO self-adhesive waterproof roll with aerogel insulation layer.

[0019] According to another aspect of the present invention, the present invention also provides the application of the TPO self-adhesive waterproof membrane with aerogel insulation layer or the TPO self-adhesive waterproof membrane with aerogel insulation layer prepared by the preparation method described above in the field of construction.

[0020] Compared with existing technologies, this invention provides a TPO self-adhesive waterproof membrane with an aerogel insulation layer. Firstly, this TPO self-adhesive waterproof membrane with an aerogel insulation layer exhibits excellent weather resistance, capable of withstanding complex outdoor environments such as sun exposure, rain, and strong winds under exposed conditions, resulting in a long service life. After a 2500-hour xenon lamp weathering test, the membrane showed no cracking, powdering, or delamination. This is because the weather-resistant TPO layer uses a styrene-isoprene-styrene copolymer combined with a styrene-maleic anhydride copolymer. These two components synergistically enhance the anti-aging ability: the former's flexible segments buffer stress and inhibit the propagation of microcracks; the latter's maleic anhydride groups act as molecular bridges to strengthen interfacial bonding, preventing stress concentration that could lead to cracking and delamination, thus ensuring the membrane's structural integrity after long-term aging.

[0021] Secondly, the TPO self-adhesive waterproof membrane with aerogel insulation layer of the present invention has a reasonable structure and layering. By placing the aerogel insulation layer in the middle of the waterproof membrane, the defects of the aerogel insulation layer being easy to absorb water and turn into powder when applied alone can be solved, which leads to the continuous decline of waterproof and heat insulation performance and the overall mechanical properties of the waterproof membrane.

[0022] Furthermore, the TPO self-adhesive waterproof membrane with an aerogel insulation layer of this invention has wide adaptability, can be cold-applied without heat fusion, and can be directly bonded to various substrates such as metal roofs and concrete. It can adapt to substrate deformation, achieving integrated waterproofing and insulation, simplifying construction procedures, improving construction efficiency, and effectively reducing construction costs. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the structure of the TPO self-adhesive waterproof membrane with an aerogel insulation layer according to an embodiment of the present invention.

[0025] In the diagram: 1. Weather-resistant TPO layer, 2. Backing non-woven fabric layer, 3. Aerogel insulation layer, 4. Self-adhesive layer, 5. Release film layer, 6. Overlap edge. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention more apparent, the invention is described in detail below. It should be understood that the invention is not limited to the description herein.

[0027] ethylene-olefin copolymer The ethylene-olefin copolymer used in this invention is an ethylene-olefin copolymer known in the art for use in waterproof membranes, and this invention is not limited to the ethylene-olefin copolymers listed below. As an example, the ethylene-olefin copolymer can be an ethylene-propylene copolymer and / or an ethylene-octene copolymer. In this invention, the ethylene-olefin copolymer can impart diverse properties to the weather-resistant TPO layer; for example, the ethylene-propylene copolymer can improve the flexibility and processability of the weather-resistant TPO layer, and the ethylene-octene copolymer can improve the flexibility and tear resistance of the weather-resistant TPO layer.

[0028] Styrene-isoprene-styrene copolymer The styrene-isoprene-styrene copolymer used in this invention is a known styrene-isoprene-styrene copolymer that can be used in waterproof membranes. It is a thermoplastic elastomer that provides good flexibility and resilience in the system, allowing the weather-resistant TPO layer to maintain good physical properties at different temperatures and adapt to the expansion and contraction deformation of building roofs caused by temperature changes.

[0029] Styrene-maleic anhydride copolymer The styrene-maleic anhydride copolymer used in this invention is a known styrene-maleic anhydride copolymer that can be used in waterproof membranes. It can improve the strength and stability of the weather-resistant TPO layer and enhance the overall mechanical properties of the waterproof membrane.

[0030] polypropylene The polypropylene used in this invention is a type of polypropylene known in the art for use in waterproof membranes. It increases the rigidity and hardness of the material, improves the puncture resistance of the weather-resistant TPO layer, and effectively resists damage to the waterproof membrane from sharp objects during construction and use.

[0031] antioxidants The antioxidant used in this invention is an antioxidant known in the art for use in waterproof membranes. As an example, the antioxidant may be one or more of antioxidant 1010, antioxidant 2246, and antioxidant 168. The antioxidant can capture free radicals, interrupt the oxidation chain reaction, maintain the stability of material properties, thereby inhibiting or delaying oxidative degradation, and thus extending the service life of the weather-resistant TPO layer.

[0032] Light stabilizers The light stabilizer used in this invention is a known light stabilizer for use in waterproof membranes. As an example, the light stabilizer could be Tinuvin XT847. The light stabilizer absorbs, transfers, or quenches ultraviolet energy, preventing the material from aging due to ultraviolet radiation, thereby protecting the weather-resistant TPO layer.

[0033] Flame retardant The flame retardant used in this invention is a flame retardant known in the art for use in waterproof membranes. As an example, the flame retardant can be a mixture of magnesium hydroxide and aluminum hydroxide in a 1:1 mass ratio. Improving the flame retardancy of waterproof membranes is crucial in building applications. The flame retardant imparts flame-retardant properties to the weather-resistant TPO layer, reducing the risk of fire.

[0034] filler The filler used in this invention is a filler known in the art for use in waterproof membranes. As an example, the filler can be one or more of calcium carbonate, talc, and silica. The filler can improve the material's hardness and dimensional stability, while reducing shrinkage and enhancing the physical properties of the weather-resistant TPO layer.

[0035] UV shielding agent The ultraviolet (UV) shielding agent used in this invention is a UV shielding agent known in the art for use in waterproof membranes. As an example, the UV shielding agent can be one or both of titanium dioxide and zinc oxide. The UV shielding agent can work synergistically with light stabilizers to further block UV rays and reduce UV damage to the weather-resistant TPO layer.

[0036] Antibacterial agents The antibacterial agent used in this invention is a known antibacterial agent that can be used in waterproof membranes. As an example, the antibacterial agent can be a nano-silver ion antibacterial agent. The antibacterial agent can inhibit the growth of microorganisms, preventing mold and bacteria growth on the surface of the membrane from causing mildew and odors, thus affecting its use and aesthetics. It is particularly suitable for waterproofing buildings in humid environments.

[0037] Backing non-woven fabric layer The nonwoven fabric backing layer of this invention can be selected from different nonwoven fabrics according to the needs of different application scenarios. As an example, the nonwoven fabric can be a high-strength, chemically resistant, and dimensionally stable polyester nonwoven fabric or a lightweight, breathable, and low-cost polypropylene nonwoven fabric.

[0038] Waterborne silicone-acrylic emulsion The water-based silicone-acrylic emulsion used in this invention is a known water-based silicone-acrylic emulsion that can be used in waterproof membranes. The water-based silicone-acrylic emulsion provides good water resistance, weather resistance, and adhesion, and serves as a film-forming substance in aerogel insulation layers.

[0039] Water-soluble saturated polyester resin The water-soluble saturated polyester resin used in this invention is a known water-soluble saturated polyester resin in the art that can be used in waterproof membranes. The water-soluble saturated polyester resin can adjust the hardness, flexibility, and drying speed of the aerogel insulation layer.

[0040] Basalt fiber The basalt fiber used in this invention is a type of basalt fiber known in the art for use in waterproof membranes. Basalt fiber can enhance the mechanical strength of the aerogel insulation layer and improve its tensile and tear resistance.

[0041] Hollow glass microspheres The hollow glass microspheres used in this invention are known in the art for use in waterproof membranes. Hollow glass microspheres can reduce material density, enhance thermal insulation performance, and also provide some sound insulation.

[0042] dispersant The dispersant used in this invention is a dispersant known in the art for use in waterproof membranes. As an example, the dispersant can be a polyphosphate dispersant. The dispersant ensures uniform dispersion of the raw materials, improving the stability and coating effect of the aerogel slurry.

[0043] Defoamer The defoamer used in this invention is a known defoamer in the art that can be used in waterproof membranes. As an example, the defoamer can be a polyether-modified silicone defoamer. The defoamer removes air bubbles from the slurry, preventing the formation of pores in the insulation layer that could affect performance.

[0044] Film-forming promoters The film-forming accelerator used in this invention is a known film-forming accelerator for use in waterproof membranes. As an example, the film-forming accelerator can be a dodecyl alcohol ester. The film-forming aid can promote the fusion of polymer emulsion particles into a continuous film, improving the film-forming quality and performance of the aerogel insulation layer.

[0045] Self-adhesive layer The self-adhesive layer of this invention can be selected according to the needs of different application scenarios. As an example, the self-adhesive layer can be a hot-melt pressure-sensitive adhesive layer or a butyl rubber layer. Hot-melt pressure-sensitive adhesive has good adhesion after melting when heated and can be quickly cured after cooling, making it easy to apply and providing a strong bond. The butyl rubber layer has excellent airtightness, watertightness, and aging resistance, ensuring a tight bond between the self-adhesive waterproof membrane and the substrate, preventing moisture penetration.

[0046] isolation membrane The release film layer of this invention can effectively isolate the self-adhesive layer, preventing it from sticking together during storage and transportation. As an example, the release film layer can be a silicone-coated polyethylene (PE) release film or an aluminized polyethylene terephthalate (PET) release film.

[0047] TPO self-adhesive waterproof membrane with aerogel insulation layer Please refer to Figure 1 A schematic diagram of the structure of a TPO self-adhesive waterproof membrane with an aerogel insulation layer is shown. The waterproof membrane includes, from top to bottom, a weather-resistant TPO layer, a backing non-woven fabric layer, an aerogel insulation layer, a self-adhesive layer, and a release film layer. The weather-resistant TPO layer extends horizontally to one side to form an overlap edge, which can be hot-air welded. Its width can be selected according to actual needs, generally 6~10cm. The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40-60 parts of ethylene-olefin copolymer, preferably 45-55 parts; 5-10 parts of styrene-isoprene-styrene copolymer, preferably 6-8 parts; 5-15 parts of styrene-maleic anhydride copolymer, preferably 8-12 parts; 10-25 parts of polypropylene, preferably 15-20 parts; 0.1-1.5 parts of antioxidant, preferably 0.5-1 part; 0.1-1.5 parts of light stabilizer, preferably 0.5-1 part; 5-10 parts of flame retardant, preferably 7-8 parts; 15-30 parts of filler, preferably 20-25 parts; 1-5 parts of ultraviolet shielding agent, preferably 3-4 parts; and 0.1-1 part of antibacterial agent, preferably 0.4-0.6 parts.

[0048] In this invention, the ethylene-olefin copolymer includes at least one of ethylene-propylene copolymer and ethylene-octene copolymer.

[0049] In this invention, the backing nonwoven fabric layer comprises a unit area mass of 80~120g / m². 2 Polyester nonwoven fabric.

[0050] In this invention, the aerogel insulation layer comprises the following raw materials in parts by weight: 10-15 parts water, preferably 12-14 parts; 15-25 parts water-based silicone-acrylic emulsion, preferably 18-22 parts; 15-25 parts water-soluble saturated polyester resin, preferably 18-23 parts; 2-5 parts basalt fiber, preferably 3-4 parts; 10-15 parts hollow glass microspheres, preferably 12-14 parts; 20-35 parts silica aerogel, preferably 25-30 parts; 5-10 parts flame retardant, preferably 7-8 parts; 0.5-1 part dispersant, preferably 0.6-0.8 parts; 0.5-1 part defoamer, preferably 0.6-0.8 parts; and 1-2 parts film-forming aid, preferably 1.2-1.6 parts.

[0051] In this invention, the water-soluble saturated polyester resin includes a first water-soluble saturated polyester resin and a second water-soluble saturated polyester resin in a mass ratio of 4 to 9:1. The first water-soluble saturated polyester resin has a hydroxyl value of 5 to 10 KOH mg / g and an acid value of 2 to 7 KOH mg / g, while the second water-soluble saturated polyester resin has a hydroxyl value of 10 to 15 KOH mg / g and an acid value of 35 to 45 KOH mg / g.

[0052] In this invention, by selecting two water-soluble saturated polyester resins with different hydroxyl and acid values ​​at a specific mass ratio, the overall mechanical properties of TPO self-adhesive waterproof membranes with aerogel insulation layers can be improved. The first and second water-soluble saturated polyester resins, through the synergistic effect of their hydroxyl and acid values, mutually compensate for each other's performance shortcomings. Appropriate hydroxyl and acid values ​​enhance both flexibility and cohesion, thereby effectively improving the mechanical properties of the waterproof membrane and ensuring greater durability in building applications.

[0053] In this invention, the self-adhesive layer includes a hot melt pressure-sensitive adhesive layer or a butyl adhesive layer.

[0054] In this invention, the isolation film layer includes a silicone-coated PE isolation film or an aluminum-coated PET isolation film.

[0055] In this invention, the thickness of the weather-resistant TPO layer is 0.5~1.5mm.

[0056] In this invention, the thickness of the backing nonwoven fabric layer is 0.3~0.5mm.

[0057] In this invention, the thickness of the aerogel insulation layer is 0.1~2mm.

[0058] In this invention, the thickness of the self-adhesive layer is 0.2~1.5mm.

[0059] In this invention, the thickness of the isolation film layer is 0.1~0.2mm.

[0060] Preparation method of TPO self-adhesive waterproof membrane with aerogel insulation layer The present invention also provides a method for preparing the aforementioned TPO self-adhesive waterproof membrane with an aerogel insulation layer, comprising the following steps: S1. Weather-resistant TPO layer and backing non-woven fabric layer composite: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and hot press the weather-resistant TPO layer with backing non-woven fabric to obtain weather-resistant TPO layer with backing non-woven fabric layer. S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. S3. Self-adhesive layer coating and release film bonding: Melt the self-adhesive layer material and coat it on one side of the aerogel insulation layer of the composite layer. Then bond the release film, cool, cut, and roll up to obtain TPO self-adhesive waterproof roll with aerogel insulation layer.

[0061] application The present invention also provides the application of the aforementioned TPO self-adhesive waterproof membrane with aerogel insulation layer or the TPO self-adhesive waterproof membrane with aerogel insulation layer prepared by the aforementioned preparation method in the construction field.

[0062] To further illustrate the present invention, the following embodiments will be described in detail. The raw materials used in the following embodiments and comparative examples of this invention are all commercially available products. Specifically, the ethylene-propylene copolymer is POE 3020FL, the ethylene-octene copolymer is Engage 8842, the styrene-isoprene-styrene copolymer is SIS D1163, the styrene-maleic anhydride copolymer is SMA 3840, the polypropylene is PP RJ6428, the light stabilizer is TinuvinXT847, the average particle size of the silica is 20 μm, the average particle size of the titanium dioxide is 20 μm, the nano silver ion antibacterial agent is SILVADUR 930, the waterborne silicone-acrylic emulsion is Jiangsu Shengda SD-5281, the basalt fiber has an average diameter of 15 μm and a length of 50 μm, the hollow glass microspheres have an average particle size of 70 μm and an isostatic compressive strength of 3.45 MPa, and the silica aerogel has a specific surface area of ​​600-1100 m². 2 / g, pore size 10~15nm; average particle size of aluminum hydroxide is 20μm; average particle size of magnesium hydroxide is 20μm; polyphosphate dispersant is Polyron 322; polyether modified silicone defoamer is TEGO Foamex 8051; hot melt pressure sensitive adhesive is Bostik H2259C.

[0063] Example 1 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with the backing nonwoven fabric (unit area mass of 80g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-propylene copolymer, 5 parts styrene-isoprene-styrene copolymer, 5 parts styrene-maleic anhydride copolymer, 10 parts polypropylene, 0.1 parts antioxidant 1010, 0.1 parts Tinuvin XT847 light stabilizer, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 15 parts silica, 1 part titanium dioxide, and 0.1 parts nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 10 parts water, 15 parts water-based silicone-acrylic emulsion, 15 parts water-soluble saturated polyester resin (model EW 100Q, hydroxyl value 10~15KOH mg / g, acid value 2~7KOH mg / g), 2 parts basalt fiber, 10 parts hollow glass microspheres, 20 parts silica aerogel, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 0.5 parts polyphosphate dispersant, 0.5 parts polyether-modified organosilicon defoamer, and 1 part dodecyl alcohol ester; S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 0.5 mm, the backing non-woven fabric layer has a thickness of 0.3 mm, the aerogel insulation layer has a thickness of 0.1 mm, the self-adhesive layer has a thickness of 0.2 mm, the release film layer has a thickness of 0.1 mm, and the weather-resistant TPO layer is 6 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0064] Example 2 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with backing nonwoven fabric (unit area mass of 120g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-octene copolymer, 15 parts styrene-isoprene-styrene copolymer, 10 parts styrene-maleic anhydride copolymer, 25 parts polypropylene, 1.5 parts antioxidant 1010, 1.5 parts Tinuvin XT847 light stabilizer, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 30 parts silica, 5 parts titanium dioxide, and 1 part nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 15 parts water, 25 parts water-based silicone-acrylic emulsion, 25 parts water-soluble saturated polyester resin (model EW 100D, hydroxyl value 10~15KOHmg / g, acid value 35~45KOHmg / g), 5 parts basalt fiber, 15 parts hollow glass microspheres, 35 parts silica aerogel, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 1 part polyphosphate dispersant, 1 part polyether-modified organosilicon defoamer, and 2 parts dodecyl alcohol ester. S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 1.5 mm, the backing non-woven fabric layer has a thickness of 0.5 mm, the aerogel insulation layer has a thickness of 2 mm, the self-adhesive layer has a thickness of 1.5 mm, the release film layer has a thickness of 0.2 mm, and the weather-resistant TPO layer is 10 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0065] Example 3 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with backing nonwoven fabric (unit area mass of 120g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-octene copolymer, 15 parts styrene-isoprene-styrene copolymer, 10 parts styrene-maleic anhydride copolymer, 25 parts polypropylene, 1.5 parts antioxidant 1010, 1.5 parts Tinuvin XT847 light stabilizer, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 30 parts silica, 5 parts titanium dioxide, and 1 part nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 15 parts water, 25 parts water-based silicone-acrylic emulsion, 25 parts water-soluble saturated polyester resin (model EW 370, hydroxyl value 5~10KOH mg / g, acid value 2~7KOH mg / g), 5 parts basalt fiber, 15 parts hollow glass microspheres, 35 parts silica aerogel, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 1 part polyphosphate dispersant, 1 part polyether-modified organosilicon defoamer, and 2 parts dodecyl alcohol ester. S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 1.5 mm, the backing non-woven fabric layer has a thickness of 0.5 mm, the aerogel insulation layer has a thickness of 2 mm, the self-adhesive layer has a thickness of 1.5 mm, the release film layer has a thickness of 0.2 mm, and the weather-resistant TPO layer is 10 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0066] Example 4 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with backing nonwoven fabric (unit area mass of 120g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-octene copolymer, 15 parts styrene-isoprene-styrene copolymer, 10 parts styrene-maleic anhydride copolymer, 25 parts polypropylene, 1.5 parts antioxidant 1010, 1.5 parts Tinuvin XT847 light stabilizer, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 30 parts silica, 5 parts titanium dioxide, and 1 part nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 15 parts water, 25 parts water-based silicone-acrylic emulsion, 20 parts first water-soluble saturated polyester resin (model EW 370, hydroxyl value 5~10KOH mg / g, acid value 2~7KOH mg / g), 5 parts second water-soluble saturated polyester resin (model EW 100Q, hydroxyl value 10~15KOH mg / g, acid value 2~7KOH mg / g), 5 parts basalt fiber, 15 parts hollow glass microspheres, 35 parts silica aerogel, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 1 part polyphosphate dispersant, 1 part polyether-modified silicone defoamer, and 2 parts dodecyl alcohol ester. S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 1.5 mm, the backing non-woven fabric layer has a thickness of 0.5 mm, the aerogel insulation layer has a thickness of 2 mm, the self-adhesive layer has a thickness of 1.5 mm, the release film layer has a thickness of 0.2 mm, and the weather-resistant TPO layer is 10 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0067] Example 5 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with backing nonwoven fabric (unit area mass of 120g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-octene copolymer, 15 parts styrene-isoprene-styrene copolymer, 10 parts styrene-maleic anhydride copolymer, 25 parts polypropylene, 1.5 parts antioxidant 1010, 1.5 parts Tinuvin XT847 light stabilizer, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 30 parts silica, 5 parts titanium dioxide, and 1 part nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 15 parts water, 25 parts water-based silicone-acrylic emulsion, 20 parts first water-soluble saturated polyester resin (model EW 100Q, hydroxyl value 10~15KOH mg / g, acid value 2~7KOH mg / g), 5 parts second water-soluble saturated polyester resin (model EW 100D, hydroxyl value 10~15KOH mg / g, acid value 35~45KOH mg / g), 5 parts basalt fiber, 15 parts hollow glass microspheres, 35 parts silica aerogel, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 1 part polyphosphate dispersant, 1 part polyether-modified silicone defoamer, and 2 parts dodecyl alcohol ester. S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 1.5 mm, the backing non-woven fabric layer has a thickness of 0.5 mm, the aerogel insulation layer has a thickness of 2 mm, the self-adhesive layer has a thickness of 1.5 mm, the release film layer has a thickness of 0.2 mm, and the weather-resistant TPO layer is 10 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0068] Example 6 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with backing nonwoven fabric (unit area mass of 120g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-octene copolymer, 15 parts styrene-isoprene-styrene copolymer, 10 parts styrene-maleic anhydride copolymer, 25 parts polypropylene, 1.5 parts antioxidant 1010, 1.5 parts Tinuvin XT847 light stabilizer, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 30 parts silica, 5 parts titanium dioxide, and 1 part nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 15 parts water, 25 parts water-based silicone-acrylic emulsion, 20 parts first water-soluble saturated polyester resin (model EW 370, hydroxyl value 5~10KOH mg / g, acid value 2~7KOH mg / g), 5 parts second water-soluble saturated polyester resin (model EW 100D, hydroxyl value 10~15KOH mg / g, acid value 35~45KOH mg / g), 5 parts basalt fiber, 15 parts hollow glass microspheres, 35 parts silica aerogel, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 1 part polyphosphate dispersant, 1 part polyether-modified silicone defoamer, and 2 parts dodecyl alcohol ester. S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 1.5 mm, the backing non-woven fabric layer has a thickness of 0.5 mm, the aerogel insulation layer has a thickness of 2 mm, the self-adhesive layer has a thickness of 1.5 mm, the release film layer has a thickness of 0.2 mm, and the weather-resistant TPO layer is 10 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0069] Example 7 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with backing nonwoven fabric (unit area mass of 120g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-octene copolymer, 15 parts styrene-isoprene-styrene copolymer, 10 parts styrene-maleic anhydride copolymer, 25 parts polypropylene, 1.5 parts antioxidant 1010, 1.5 parts Tinuvin XT847 light stabilizer, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 30 parts silica, 5 parts titanium dioxide, and 1 part nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 15 parts water, 25 parts water-based silicone-acrylic emulsion, 22.5 parts first water-soluble saturated polyester resin (model EW 370, hydroxyl value 5~10KOH mg / g, acid value 2~7KOH mg / g), 2.5 parts second water-soluble saturated polyester resin (model EW 100D, hydroxyl value 10~15KOH mg / g, acid value 35~45KOH mg / g), 5 parts basalt fiber, 15 parts hollow glass microspheres, 35 parts silica aerogel, 5 parts aluminum hydroxide, 5 parts magnesium hydroxide, 1 part polyphosphate dispersant, 1 part polyether-modified silicone defoamer, and 2 parts dodecyl alcohol ester. S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 1.5 mm, the backing non-woven fabric layer has a thickness of 0.5 mm, the aerogel insulation layer has a thickness of 2 mm, the self-adhesive layer has a thickness of 1.5 mm, the release film layer has a thickness of 0.2 mm, and the weather-resistant TPO layer is 10 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0070] Comparative Example 1 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with the backing nonwoven fabric (unit area mass of 80g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-propylene copolymer, 10 parts styrene-isoprene-styrene copolymer, 10 parts polypropylene, 0.1 parts antioxidant 1010, 0.1 parts Tinuvin XT847 light stabilizer, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 15 parts silica, 1 part titanium dioxide, and 0.1 parts nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 10 parts water, 15 parts water-based silicone-acrylic emulsion, 15 parts water-soluble saturated polyester resin (model EW 100Q, hydroxyl value 10~15KOH mg / g, acid value 2~7KOH mg / g), 2 parts basalt fiber, 10 parts hollow glass microspheres, 20 parts silica aerogel, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 0.5 parts polyphosphate dispersant, 0.5 parts polyether-modified organosilicon defoamer, and 1 part dodecyl alcohol ester; S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 0.5 mm, the backing non-woven fabric layer has a thickness of 0.3 mm, the aerogel insulation layer has a thickness of 0.1 mm, the self-adhesive layer has a thickness of 0.2 mm, the release film layer has a thickness of 0.1 mm, and the weather-resistant TPO layer is 6 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0071] Comparative Example 2 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with the backing nonwoven fabric (unit area mass of 80g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-propylene copolymer, 10 parts styrene-maleic anhydride copolymer, 10 parts polypropylene, 0.1 parts antioxidant 1010, 0.1 parts Tinuvin XT847 light stabilizer, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 15 parts silica, 1 part titanium dioxide, and 0.1 parts nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 10 parts water, 15 parts water-based silicone-acrylic emulsion, 15 parts water-soluble saturated polyester resin (model EW 100Q, hydroxyl value 10~15KOH mg / g, acid value 2~7KOH mg / g), 2 parts basalt fiber, 10 parts hollow glass microspheres, 20 parts silica aerogel, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 0.5 parts polyphosphate dispersant, 0.5 parts polyether-modified organosilicon defoamer, and 1 part dodecyl alcohol ester; S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 0.5 mm, the backing non-woven fabric layer has a thickness of 0.3 mm, the aerogel insulation layer has a thickness of 0.1 mm, the self-adhesive layer has a thickness of 0.2 mm, the release film layer has a thickness of 0.1 mm, and the weather-resistant TPO layer is 6 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0072] Comparative Example 3 A method for developing a TPO self-adhesive waterproof membrane with an aerogel insulation layer includes the following steps: S1. Composite of weather-resistant TPO layer and backing nonwoven fabric layer: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and then combine the weather-resistant TPO layer with the backing nonwoven fabric (unit area mass of 80g / m²). 2 The polyester nonwoven fabric is hot-pressed to obtain a weather-resistant TPO layer with a backing nonwoven fabric layer; The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40 parts ethylene-propylene copolymer, 10 parts polypropylene, 0.1 parts antioxidant 1010, 0.1 parts Tinuvin XT847 light stabilizer, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 15 parts silica, 1 part titanium dioxide, and 0.1 parts nano silver ion antibacterial agent; S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. The aerogel insulation layer comprises the following raw materials in parts by weight: 10 parts water, 15 parts water-based silicone-acrylic emulsion, 15 parts water-soluble saturated polyester resin (model EW 100Q, hydroxyl value 10~15KOH mg / g, acid value 2~7KOH mg / g), 2 parts basalt fiber, 10 parts hollow glass microspheres, 20 parts silica aerogel, 2.5 parts aluminum hydroxide, 2.5 parts magnesium hydroxide, 0.5 parts polyphosphate dispersant, 0.5 parts polyether-modified organosilicon defoamer, and 1 part dodecyl alcohol ester; S3. Self-adhesive layer coating and release film layer bonding: Hot melt pressure-sensitive adhesive is melted and coated on one side of the aerogel insulation layer of the composite layer to form a self-adhesive layer. Silicone-coated PE release film is then bonded to the surface of the self-adhesive layer. After cooling, cutting, and rolling, TPO self-adhesive waterproof roll with aerogel insulation layer is obtained. The weather-resistant TPO layer has a thickness of 0.5 mm, the backing non-woven fabric layer has a thickness of 0.3 mm, the aerogel insulation layer has a thickness of 0.1 mm, the self-adhesive layer has a thickness of 0.2 mm, the release film layer has a thickness of 0.1 mm, and the weather-resistant TPO layer is 6 cm wider than the other layers to form an overlap edge that can be hot-air welded.

[0073] Experiment Example 1 Weather Resistance Test Artificial accelerated aging tests were conducted on the TPO self-adhesive waterproof membranes with aerogel insulation layers prepared in Examples 1-7 and Comparative Examples 1-3, in accordance with GB 27789-2011. The test duration was 2500 hours. The test results are shown in Table 1 below.

[0074] Table 1 Weather resistance performance test

[0075] Experiment Example 2 Mechanical Property Testing The maximum tensile strength and elongation at break of the TPO self-adhesive waterproof membranes with aerogel insulation layers prepared in Examples 1-7 were tested according to GB 27789-2011. The test results are shown in Table 2 below.

[0076] Table 2 Mechanical property test results

[0077] Example 3 Waterproof and thermal insulation performance test The water absorption rate and thermal conductivity of the TPO self-adhesive waterproof membranes with aerogel insulation layers prepared in Examples 1-7 were tested according to GB 27789-2011 and GB / T 10294-2008. The results showed that the water absorption rate was 0.5%~0.8%, and the thermal conductivity was 0.018~0.024 W / (m·K). This indicates that the TPO self-adhesive waterproof membrane with aerogel insulation layer of the present invention has good waterproof and thermal insulation functions.

[0078] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A TPO self-adhesive waterproof membrane with an aerogel insulation layer, characterized in that, From top to bottom, the layers consist of a weather-resistant TPO layer, a backing non-woven fabric layer, an aerogel insulation layer, a self-adhesive layer, and a release film layer. The weather-resistant TPO layer extends horizontally to one side to form an overlap edge. The weather-resistant TPO layer comprises the following raw materials in parts by weight: 40-60 parts of ethylene-olefin copolymer, 5-10 parts of styrene-isoprene-styrene copolymer, 5-15 parts of styrene-maleic anhydride copolymer, 10-25 parts of polypropylene, 0.1-1.5 parts of antioxidant, 0.1-1.5 parts of light stabilizer, 5-10 parts of flame retardant, 15-30 parts of filler, 1-5 parts of ultraviolet shielding agent, and 0.1-1 part of antibacterial agent.

2. The TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 1, characterized in that, The ethylene-olefin copolymer includes at least one of ethylene-propylene copolymer and ethylene-octene copolymer.

3. The TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 1, characterized in that, The backing nonwoven fabric layer comprises a unit area mass of 80~120g / m². 2 Polyester nonwoven fabric.

4. The TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 1, characterized in that, The aerogel insulation layer comprises the following raw materials in parts by weight: 10-15 parts water, 15-25 parts water-based silicone-acrylic emulsion, 15-25 parts water-soluble saturated polyester resin, 2-5 parts basalt fiber, 10-15 parts hollow glass microspheres, 20-35 parts silica aerogel, 5-10 parts flame retardant, 0.5-1 part dispersant, 0.5-1 part defoamer, and 1-2 parts film-forming aid.

5. The TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 4, characterized in that, The water-soluble saturated polyester resin comprises a first water-soluble saturated polyester resin and a second water-soluble saturated polyester resin in a mass ratio of 4 to 9:

1. The first water-soluble saturated polyester resin has a hydroxyl value of 5 to 10 KOH mg / g and an acid value of 2 to 7 KOH mg / g, while the second water-soluble saturated polyester resin has a hydroxyl value of 10 to 15 KOH mg / g and an acid value of 35 to 45 KOH mg / g.

6. The TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 1, characterized in that, The self-adhesive layer includes a hot melt pressure-sensitive adhesive layer or a butyl adhesive layer.

7. A TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 1, characterized in that, The isolation film layer includes a silicone-coated PE isolation film or an aluminum-coated PET isolation film.

8. A TPO self-adhesive waterproof membrane with an aerogel insulation layer according to claim 1, characterized in that, The thickness of the weather-resistant TPO layer is 0.5~1.5mm; and / or The thickness of the backing nonwoven fabric layer is 0.3~0.5mm; and / or The thickness of the aerogel insulation layer is 0.1~2mm; and / or The thickness of the self-adhesive layer is 0.2~1.5mm; and / or The thickness of the isolation membrane layer is 0.1~0.2mm.

9. A method for preparing a TPO self-adhesive waterproof membrane with an aerogel insulation layer according to any one of claims 1 to 8, characterized in that, Includes the following steps: S1. Weather-resistant TPO layer and backing non-woven fabric layer composite: Mix the raw materials of weather-resistant TPO layer, extrude and calender to form weather-resistant TPO layer, and hot press the weather-resistant TPO layer with backing non-woven fabric to obtain weather-resistant TPO layer with backing non-woven fabric layer. S2. Preparation and coating of aerogel slurry: Mix the raw materials of the aerogel insulation layer to obtain aerogel slurry. Coat the aerogel slurry on one side of the weather-resistant TPO layer with the backing nonwoven fabric layer. Dry and cool to room temperature to obtain a composite layer of weather-resistant TPO layer / backing nonwoven fabric layer / aerogel insulation layer. S3. Self-adhesive layer coating and release film bonding: Melt the self-adhesive layer material and coat it on one side of the aerogel insulation layer of the composite layer, then bond the release film and cool to obtain TPO self-adhesive waterproof roll with aerogel insulation layer.

10. The application of the TPO self-adhesive waterproof membrane with an aerogel insulation layer according to any one of claims 1 to 8, or the TPO self-adhesive waterproof membrane with an aerogel insulation layer prepared by the preparation method according to claim 9, in the construction field.

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