Thermal and waterproof integrated structure coiled material and preparation method thereof

Abstract

The present application relates to the technical field of building construction, in particular to a kind of thermal insulation waterproof integrated construction coiled material and preparation method thereof.The thermal insulation waterproof integrated construction coiled material is characterized in that it includes lightweight high polymer waterproof coiled material layer, thermal insulation layer and veneer layer;Wherein lightweight high polymer waterproof coiled material layer is top layer, thermal insulation layer is intermediate layer, and veneer layer is bottom layer, the lightweight high polymer waterproof coiled material layer is made by high polymer waterproof surface layer and reinforcing layer from top to bottom adhesion;The high polymer waterproof surface layer includes the following components: polyethylene 60-80 parts, multifunctional flame retardant 13-18 parts, antioxidant 2-4 parts, plasticizer 1-3 parts, lubricant 3-5 parts, ultraviolet absorber 1-2 parts.The present application develops lightweight coiled material, reduces roof load, maintains the effective thickness of thermal insulation layer, adapts to various base layers, constructs "waterproof-thermal insulation-veneering" integrated system, eliminates interlayer defects, reduces construction cost, and has good application prospect.

Description

Technical Field

[0001] This invention belongs to the field of building construction technology, specifically relating to an integrated thermal insulation and waterproofing structural roll and its preparation method. Background Technology

[0002] Roofs are an important component of buildings; however, waterproofing and insulation have always been key concerns in the industry. Traditional waterproofing membranes present numerous problems when applied to roofs. Firstly, some waterproofing membranes, such as bitumen-based membranes, are heavy, lack flexibility, and have poor weather resistance, increasing the roof load. This is particularly problematic for older roofs or buildings with strict load requirements, potentially leading to structural safety hazards due to overloading. Secondly, the high density of traditional waterproofing membranes compresses the insulation layer, affecting its effective thickness and reducing overall thermal resistance. Thirdly, the weather resistance and adhesion to the substrate of ordinary waterproofing membranes need improvement, making them prone to leakage and delamination, thus affecting the roof's waterproofing effectiveness and lifespan.

[0003] Meanwhile, in terms of thermal insulation, traditional thermal insulation materials and waterproof membranes are usually installed separately, requiring separate laying of waterproof layer, thermal insulation layer and protective layer. This process is cumbersome and the construction period is long. This not only increases the construction process and cost, but also, because the layer is simply overlapped, the bond between the two is not tight enough, which easily leads to thermal bridging and water seepage, reducing the overall performance of thermal insulation and waterproofing.

[0004] Therefore, developing a lightweight, high-performance structure that integrates thermal insulation and waterproofing is of great practical significance for roofs of various types of buildings. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated thermal insulation and waterproofing structural roll and its preparation method, which solves the technical problems of heavy weight and insufficient weather resistance of existing building rolls.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The technical solution provided by this invention is as follows:

[0008] The integrated thermal insulation and waterproofing membrane consists of a lightweight polymer waterproof membrane layer, an insulation layer, and a facing layer. The lightweight polymer waterproof membrane layer is the top layer, the insulation layer is the middle layer, and the facing layer is the bottom layer. The lightweight polymer waterproof membrane layer is made by bonding a polymer waterproof surface layer and a reinforcing layer from top to bottom. The thickness of the polymer waterproof surface layer is 1.0-2.0 mm, and the thickness of the reinforcing layer is 0.1-0.5 mm.

[0009] Preferably, the polymer waterproof surface layer comprises the following components: 60-80 parts of polyethylene, 13-18 parts of multifunctional flame retardant, 2-4 parts of antioxidant, 1-3 parts of plasticizer, 3-5 parts of lubricant, and 1-2 parts of ultraviolet absorber.

[0010] Preferably, the antioxidant includes at least one of antioxidant 168 and antioxidant 1010.

[0011] Preferably, the lubricant includes at least one of paraffin wax and polyethylene wax.

[0012] Preferably, the plasticizer includes at least one of diisononyl phthalate and epoxidized soybean oil.

[0013] Preferably, the ultraviolet absorber is UV-531.

[0014] Preferably, the reinforcing layer comprises at least one of nonwoven fabric, high-strength film, or fiber mesh fabric.

[0015] Preferably, the material of the reinforcing layer includes at least one of glass fiber, polyester fiber, or aramid fiber.

[0016] Preferably, the adhesive used to bond the polymer waterproof surface layer and the reinforcing layer is neoprene adhesive.

[0017] Preferably, the insulation layer includes at least one of glass wool or rock wool board.

[0018] Preferably, the thickness of the insulation layer is 25-250 mm.

[0019] Preferably, the facing layer is one of PP composite fiberglass cloth, PVC composite fiberglass cloth, PP composite kraft paper or aluminum foil composite kraft paper, with a thickness of 0.07-0.2mm.

[0020] Preferably, the preparation method of the multifunctional flame retardant includes the following steps:

[0021] S1: Ammonium polyphosphate was added to an aqueous ethanol solution and ultrasonically treated to obtain an ammonium polyphosphate solution. 1,12-diaminododecane ethanol solution was added dropwise under mechanical stirring. The reaction was carried out at room temperature, filtered, washed, and dried to obtain modified ammonium polyphosphate.

[0022] In the above process, 1,12-diaminododecane modifies the surface of ammonium polyphosphate by introducing amino functional groups onto the surface of ammonium polyphosphate.

[0023] S2: Modified ammonium polyphosphate was added to an aqueous ethanol solution and ultrasonically treated to obtain an aqueous modified ammonium polyphosphate solution. Tris(hydroxymethyl)aminomethane aqueous solution was added under mechanical stirring. The pH was then adjusted to 8-9 with NaOH solution, followed by the addition of H2O2 aqueous solution and dropwise addition of tannic acid ethanol solution. The reaction was continued, and finally, tris(2-hydroxyethyl)isocyanurate organosiloxane precursor was added to continue the reaction. The mixture was then filtered, washed, and dried to obtain a multifunctional flame retardant.

[0024] Preferably, in step S1, the 1,12-diaminododecane ethanol solution is prepared by adding 40-80g of 1,12-diaminododecane to 500-1000mL of ethanol; the ratio of ammonium polyphosphate to aqueous ethanol solution is 160-320g:1-2L; the volume ratio of ethanol to water in the aqueous ethanol solution is 9:1; the ultrasonic treatment time is 8-12min; the mechanical stirring speed is 200-400rpm; the reaction time at room temperature is 1.5-2.5h; the washing method is to wash the precipitate with ethanol 3-5 times; the drying method is to dry at 65-75℃ for 10-14h.

[0025] Preferably, in step S2, the tannic acid ethanol solution is prepared by dissolving 30-60g of tannic acid in 300-600mL of ethanol; the ratio of modified ammonium polyphosphate, ethanol aqueous solution, tris(hydroxymethyl)aminomethane aqueous solution, H2O2 aqueous solution, and tris(2-hydroxyethyl)isocyanurate organosiloxane precursor is 80-160g:500-1000mL:100-200mL:125-250mL:3-5g; the volume ratio of ethanol to water in the ethanol aqueous solution is 9:1; and the ultrasonic treatment time is 8-12 minutes. The stirring speed was 200-400 rpm; the concentration of the tris(hydroxymethyl)aminomethane aqueous solution was 0.15 g / mL; the concentration of the NaOH solution was 0.1 g / mL; the mass fraction of the H2O2 aqueous solution was 3 wt%; the reaction conditions were: reaction temperature 45-55℃, reaction time 5-7 h; the conditions for continued reaction were: continued reaction temperature 55-65℃, continued reaction time 0.5-1.5 h; the washing method was: washing the precipitate 3-5 times with ethanol; the drying conditions were: drying at 55-65℃ for 20-28 h.

[0026] Preferably, the method for preparing the tris(2-hydroxyethyl)isocyanurate organosiloxane precursor includes the following steps:

[0027] Tris(2-hydroxyethyl) isocyanurate and propyltriethoxysilane isocyanate were mixed in a molar ratio of 1:1 and reacted at 140-145 °C for 3.5-4.5 h. The mixture was then cooled to room temperature in air to obtain the tris(2-hydroxyethyl) isocyanurate organosiloxane precursor.

[0028] Preferably, the method for preparing the polymer waterproof surface layer includes the following steps:

[0029] Add 60-80 parts of polyethylene, 13-18 parts of multifunctional flame retardant, 2-4 parts of antioxidant, 1-3 parts of plasticizer, 3-5 parts of lubricant, and 1-2 parts of UV absorber to a high-speed mixer, heat to 90-110℃ and mix for 1-1.5 hours, then cool and discharge to obtain a mixed material. Transfer the mixed material to a twin-screw extruder, setting the screw speed to 300-400 r / min, the die head temperature to 180-190℃, zone 1 temperature to 170-180℃, zone 2 temperature to 190-200℃, zone 3 temperature to 190-200℃, zone 4 temperature to 185-195℃, and zone 5 temperature to 175-180℃. Melt extrusion granulation is performed, and after cooling and setting, a polymer waterproof surface layer is obtained.

[0030] Preferably, the preparation method of the integrated thermal insulation and waterproofing structural membrane includes the following steps:

[0031] Step (1) Unwind the lightweight polymer waterproof membrane onto the fabric roll roller, and then evenly coat the bottom layer of the lightweight polymer waterproof membrane with lightweight spray adhesive before bonding it to the upper surface of the insulation layer.

[0032] Step (2) Unfold the laminating layer on the fabric roll roller, apply adhesive by roller coating and heat to obtain a heated adhesive laminating layer;

[0033] Step (3) combines the heated adhesive-coated surface layer with the lower surface of the insulation layer in step (1), and then combines it with the heating roller by bidirectional extrusion through the cotton pressing roller directly above the heating roller to obtain an integrated thermal insulation and waterproof structure roll.

[0034] Preferably, in step (1), the amount of adhesive dispensed is 35-80 g / m³. 2 .

[0035] Preferably, in step (2), the adhesive is 2051 glue or 1001 glue; the roller coating amount is 30-80 g / m². 2 The adhesive coating thickness is 0.1-0.2mm, and the width is consistent with the insulation layer; the 2051 adhesive is heated to 80-160℃ by a heating roller.

[0036] Preferably, in step (3), the extrusion compounding pressure is 0.6-0.8 MPa.

[0037] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0038] 1. This invention reduces roof load and adapts to various substrates by developing lightweight roofing membranes; it constructs an integrated "waterproofing-insulation-surfacing" system to eliminate interlayer defects and reduce construction costs; the integrated waterproofing and insulation structure combines the traditional waterproofing and insulation construction processes, reducing construction steps and time. Compared with the traditional construction method of laying waterproofing membranes first and then insulation materials, this integrated structure can shorten the construction cycle by 30-50%, improve construction efficiency, and reduce construction costs.

[0039] 2. The thermal insulation and waterproofing integrated structural roll material prepared by this invention forms an integrated thermal insulation and waterproofing system because the lightweight polymer waterproof roll material is tightly bonded to the insulation layer and the facing, effectively avoiding the thermal bridging and water seepage phenomena that occur between the waterproof roll material and the insulation material in traditional methods. The integrated structural roofing membrane prepared by this invention has a lower surface density than traditional waterproofing membranes. When laid on top of insulation cotton, it does not compress the insulation cotton, thus reducing thermal resistance and improving insulation performance. Furthermore, the waterproofing performance of this invention is more reliable, effectively extending the service life of the roof. The facing layer is tightly connected to the roof base layer, with the insulation layer and waterproofing membrane stacked sequentially on the facing layer, forming a stable structure for the entire roof system. This integrated structure can better resist external forces such as wind and earthquakes, improving the overall stability and safety of the roof. To improve the tensile strength and dimensional stability of the lightweight polymer waterproofing membrane, a reinforcing layer is set below the polymer waterproofing surface layer. This reinforcing layer effectively disperses external forces on the membrane. Simultaneously, propyltriethoxysilane reacts with tris(2-hydroxyethyl) isocyanate to generate an organosilicon bridging structure containing active functional groups, integrating the characteristics of organic and inorganic materials. This enhances the overall performance of the material through enhanced interfacial interactions. The forces between the tris(2-hydroxyethyl) isocyanate polymer molecular chains are weakened, making the molecular chains easier to slide, preventing tearing, punctures, and other damage to the membrane during construction and use.

[0040] 3. In this invention, the tannic acid in the polymer waterproof surface layer of the lightweight polymer waterproof membrane is unstable in a weakly alkaline environment. Its polyphenol groups are oxidized to benzoquinone structures under alkaline conditions. The oxidized oligomers then continuously aggregate through oxidative self-polymerization to form polytannic acid. The benzoquinone groups can absorb ultraviolet light, improving the UV aging resistance of polyethylene. Furthermore, the phenolic hydroxyl groups in tannic acid have the ability to capture free radicals, effectively capturing free radicals generated during polyethylene degradation under ultraviolet light or heat, thereby inhibiting the aging process. The triazine ring structure in tris(2-hydroxyethyl) isocyanurate helps absorb ultraviolet radiation, reducing direct damage to the polyethylene matrix. Simultaneously, the microcapsule structure provides additional protection, forming a stable protective film under ultraviolet irradiation, delaying photodegradation. Combined with the synergistic effect of the multi-component ultraviolet absorber, this improves the weather resistance of polyethylene.

[0041] 4. In this invention, ammonium polyphosphate can be dehydrated to generate polyphosphate and metaphosphate, thereby promoting the formation of a char layer. Non-combustible gases such as ammonia and water, as well as polyphosphate free radicals, generated during the combustion of ammonium polyphosphate can dilute oxygen and capture free radicals generated during the thermal decomposition of polypropylene. The high tannic acid carbon content can form an excellent char layer, which can effectively isolate oxygen and heat during combustion. The chemical structure of tris(2-hydroxyethyl) isocyanurate can promote the formation of a char layer. All components synergistically enhance the flame retardancy of the roll material.

[0042] 5. The lightweight polymer waterproof membrane in the integrated thermal insulation and waterproofing structural membrane prepared by this invention uses polyethylene polymer material. It is lightweight, low-density, chemically stable, and has good low-temperature resistance after electronic cross-linking foaming, which can well adapt to the use environment of various roofs. By using 1,12-diaminododecaneethanol as a bridging molecule to graft tannic acid onto the surface of ammonium polyphosphate, and then grafting tris(2-hydroxyethyl) isocyanurate organosiloxane precursor, the hydrophobicity of ammonium polyphosphate is improved by modifying ammonium polyphosphate, thereby improving its compatibility in the polyethylene matrix, and further improving the flame retardancy and weather resistance of the lightweight polymer waterproof membrane. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a process flow diagram of the preparation process of the integrated thermal insulation and waterproofing structural roll material of the present invention;

[0045] Figure 2 This is a cross-sectional schematic diagram of the integrated thermal insulation and waterproofing membrane of the present invention; in the figure: 1-lightweight polymer waterproof membrane layer; 2-thermal insulation layer; 3-faced layer;

[0046] Figure 3 This is a bar chart showing the initial and 100-hour tear strength of the thermal insulation and waterproof integrated structural roll material of the present invention. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] The substances and sources involved in the following examples and comparative examples are shown in Table 1:

[0049] Table 1

[0050] substance Source / Product Information PP composite fiberglass cloth Xuzhou Demei New Materials Co., Ltd. PVC composite fiberglass cloth Xuzhou Demei New Materials Co., Ltd. Aluminum foil composite kraft paper Xuzhou Demei New Materials Co., Ltd. polyethylene Nantong Linhao New Materials Co., Ltd. Lightweight spray adhesive Guangzhou Fuside New Material Technology Co., Ltd. 2051 glue Guangzhou Fuside New Material Technology Co., Ltd. 1001 glue Guangzhou Fuside New Material Technology Co., Ltd.

[0051] Example 1

[0052] This embodiment discloses a method for preparing a tris(2-hydroxyethyl) isocyanurate organosiloxane precursor, comprising the following steps:

[0053] 39 g of tris(2-hydroxyethyl) isocyanurate was mixed with 37.5 g of propyltriethoxysilane isocyanate and reacted at 142 °C for 4 h. The mixture was then cooled to room temperature in air to obtain the tris(2-hydroxyethyl) isocyanurate organosiloxane precursor.

[0054] Example 2

[0055] This embodiment discloses a method for preparing a multifunctional flame retardant, including the following steps:

[0056] S1: Add 240g of ammonium polyphosphate to 1.5L of ethanol-water solution with a volume ratio of 9:1. After sonication for 10min, an ammonium polyphosphate solution is obtained. 1,12-diaminododecane ethanol solution is added dropwise under mechanical stirring at 300rpm. The reaction is carried out at room temperature for 2h. After filtration, the precipitate is washed with ethanol 4 times. Finally, it is dried at 70℃ for 12h to obtain modified ammonium polyphosphate.

[0057] S2: 120g of modified ammonium polyphosphate was added to 750mL of ethanol-water solution with a volume ratio of 9:1. After ultrasonic treatment for 10min, the modified ammonium polyphosphate aqueous solution was obtained. Under mechanical stirring at 300rpm, 150mL of 0.15g / mL tris(hydroxymethyl)aminomethane aqueous solution was added. The pH was then adjusted to 8.5 with 0.1g / mL NaOH solution. Then, 190mL of 3wt% H2O2 aqueous solution was added, followed by dropwise addition of tannic acid ethanol solution. The reaction was carried out at 50℃ for 6h. Finally, 4g of tris(2-hydroxyethyl)isocyanurate organosiloxane precursor prepared in Example 1 was added and the reaction was carried out at 60℃ for 1h. The mixture was filtered, the precipitate was washed 4 times with ethanol, and dried at 60℃ for 24h to obtain a multifunctional flame retardant.

[0058] The 1,12-diaminododecane ethanol solution was prepared by adding 60g of 1,12-diaminododecane to 750mL of ethanol.

[0059] The tannic acid ethanol solution was prepared by dissolving 45g of tannic acid in 450mL of ethanol.

[0060] Example 3

[0061] This embodiment discloses a method for preparing a polymer waterproof surface layer, including the following steps:

[0062] 70g of polyethylene, 15g of the multifunctional flame retardant prepared in Example 2, 3g of antioxidant 168, 2g of diisononyl phthalate, 4g of paraffin wax, and 1.5g of UV-531 were added to a high-speed mixer. The mixture was heated to 100°C and stirred for 1.5 hours. After cooling, the mixture was discharged to obtain a mixed material. The mixed material was then transferred to a twin-screw extruder. The screw speed of the twin-screw extruder was set to 350 r / min, the die head temperature was 185°C, the temperature of zone 1 was 175°C, the temperature of zone 2 was 195°C, the temperature of zone 3 was 195°C, the temperature of zone 4 was 190°C, and the temperature of zone 5 was 175°C. The mixture was melt-extruded and granulated. After cooling and shaping, a polymer waterproof surface layer was obtained.

[0063] Example 4

[0064] This embodiment discloses a method for preparing a polymer waterproof surface layer, including the following steps:

[0065] 60g of polyethylene, 18g of the multifunctional flame retardant prepared in Example 2, 2g of antioxidant 1010, 3g of epoxidized soybean oil, 3g of polyethylene wax and 1g of UV-531 were added to a high-speed mixer, heated to 110℃ and mixed for 1 hour, then cooled and discharged to obtain a mixed material. The mixed material was then transferred to a twin-screw extruder, with the screw speed set to 400r / min, the die head temperature set to 180℃, the zone 1 temperature set to 180℃, the zone 2 temperature set to 190℃, the zone 3 temperature set to 200℃, the zone 4 temperature set to 185℃, and the zone 5 temperature set to 180℃. The material was melt-extruded and granulated, and after cooling and shaping, a polymer waterproof surface layer was obtained.

[0066] Example 5

[0067] This embodiment discloses a method for preparing a polymer waterproof surface layer, including the following steps:

[0068] 80g of polyethylene, 13g of the multifunctional flame retardant prepared in Example 2, 4g of antioxidant 168, 1g of diisononyl phthalate, 5g of paraffin wax, and 2g of UV-531 were added to a high-speed mixer. The mixture was heated to 90°C and stirred for 1.5 hours. After cooling, the mixture was discharged to obtain a mixed material. The mixed material was then transferred to a twin-screw extruder. The screw speed of the twin-screw extruder was set to 300 r / min, the die head temperature was 190°C, the temperature of zone 1 was 170°C, the temperature of zone 2 was 200°C, the temperature of zone 3 was 190°C, the temperature of zone 4 was 195°C, and the temperature of zone 5 was 175°C. The mixture was melt-extruded and granulated. After cooling and shaping, a polymer waterproof surface layer was obtained.

[0069] Example 6

[0070] See Figure 1 As shown in the figure, this embodiment discloses a method for preparing an integrated thermal insulation and waterproofing structural roll, including the following steps:

[0071] Step (1) Unroll the lightweight polymer waterproof membrane prepared in Example 3 on a fabric roll roller, and then uniformly coat the bottom layer of the lightweight polymer waterproof membrane with lightweight spray adhesive, with a spray adhesive output of 50g / m. 2 It adheres to the upper surface of the insulation layer;

[0072] Step (2) Unroll the facing layer on the fabric roll roller and apply 2051 adhesive using a roller coating method. The amount of adhesive applied by roller coating is 55g / m. 2 The adhesive coating thickness is 0.5mm, and the width is the same as that of the insulation layer; the adhesive applied to the surface is heated to 120℃ by a heating roller to obtain a heated adhesive surface layer;

[0073] Step (3) The heated adhesive-coated surface layer is combined with the lower surface of the insulation layer in step (1), and the heat-insulating and waterproof integrated structure roll is bidirectionally extruded together with the pressing roller directly above the heating roller at a pressure of 0.7MPa to obtain the heat-insulating and waterproof integrated structure roll.

[0074] The lightweight polymer waterproof membrane layer is made by bonding a polymer waterproof surface layer and a reinforcing layer from top to bottom, with neoprene adhesive as the adhesive; the thickness of the polymer waterproof surface layer is 1.5mm, and the thickness of the reinforcing layer is 0.3mm; the reinforcing layer is made of glass fiber non-woven fabric; the insulation layer is made of rock wool board with a thickness of 250mm; the facing layer is made of PP composite glass fiber cloth with a thickness of 0.08mm.

[0075] Example 7

[0076] See Figure 1 As shown in the figure, this embodiment discloses a method for preparing an integrated thermal insulation and waterproofing structural roll, including the following steps:

[0077] Step (1) Unroll the lightweight polymer waterproof membrane prepared in Example 4 on a fabric roll roller, and then uniformly coat the bottom layer of the lightweight polymer waterproof membrane with lightweight adhesive by spraying. The amount of adhesive applied is 35g / m. 2 It adheres to the upper surface of the insulation layer;

[0078] Step (2) Unfold the facing layer on the fabric roll roller and apply 1001 adhesive using a roller coating method. The amount of adhesive applied by roller coating is 30g / m. 2 The adhesive coating thickness is 0.2mm, and the width is the same as that of the insulation layer; the adhesive applied to the surface is heated to 80℃ by a heating roller to obtain a heated adhesive surface layer;

[0079] Step (3) combines the heated adhesive-coated surface layer with the lower surface of the insulation layer in step (1), and then combines it with the heating roller by bidirectional extrusion at a pressure of 0.8 MPa through the cotton pressing roller directly above the heating roller, to obtain an integrated thermal insulation and waterproofing structure roll.

[0080] The lightweight polymer waterproof membrane layer is made by bonding a polymer waterproof surface layer and a reinforcing layer from top to bottom, with neoprene adhesive as the adhesive; the thickness of the polymer waterproof surface layer is 1.6mm, and the thickness of the reinforcing layer is 0.3mm; the reinforcing layer is polyester fiber mesh; the insulation layer is glass wool with a thickness of 150mm; the facing layer is PVC composite fiberglass cloth with a thickness of 0.2mm.

[0081] Example 8

[0082] See Figure 1 As shown in the figure, this embodiment discloses a method for preparing an integrated thermal insulation and waterproofing structural roll, including the following steps:

[0083] Step (1) Unroll the lightweight polymer waterproof membrane prepared in Example 5 on a fabric roll roller, and then uniformly coat the bottom layer of the lightweight polymer waterproof membrane with lightweight spray adhesive, with a spray adhesive output of 80g / m. 2 It adheres to the upper surface of the insulation layer;

[0084] Step (2) Unfold the facing layer on the fabric roll roller and apply 2051 adhesive using a roller coating method. The amount of adhesive applied by roller coating is 80g / m. 2 The adhesive coating thickness is 0.1mm, and the width is the same as that of the insulation layer; the adhesive applied to the surface is heated to 160℃ by a heating roller to obtain a heated adhesive surface layer;

[0085] Step (3) combines the heated adhesive-coated surface layer with the lower surface of the insulation layer in step (1), and then combines it with the heating roller by bidirectional extrusion at a pressure of 0.6 MPa through the cotton pressing roller directly above the heating roller, to obtain an integrated thermal insulation and waterproofing structure roll.

[0086] The lightweight polymer waterproof membrane layer is made by bonding a polymer waterproof surface layer and a reinforcing layer from top to bottom, with neoprene adhesive as the adhesive; the thickness of the polymer waterproof surface layer is 2.0mm, and the thickness of the reinforcing layer is 0.1mm; the reinforcing layer is aramid fiber nonwoven fabric; the insulation layer is rock wool board with a thickness of 25mm; the facing layer is aluminum foil composite kraft paper with a thickness of 0.07mm.

[0087] Comparative Example 1

[0088] Compared with Example 6, Comparative Example 1 did not add a multifunctional flame retardant to the composition of the polymer waterproof surface layer during the preparation of the integrated thermal insulation and waterproofing structural roll material, while other conditions remained unchanged.

[0089] Comparative Example 2

[0090] Compared with Example 6, Comparative Example 2 used ammonium polyphosphate to replace the multifunctional flame retardant in the process of preparing the integrated thermal insulation and waterproofing structural membrane, while keeping other conditions unchanged.

[0091] Comparative Example 3

[0092] Compared with Example 6, in the preparation of the integrated thermal insulation and waterproofing structural membrane in Comparative Example 3, the multifunctional flame retardant in the polymer waterproofing surface layer was not grafted with the tris(2-hydroxyethyl) isocyanurate organosiloxane precursor, and all other conditions remained unchanged. The specific steps are as follows:

[0093] S1: Add 240g of ammonium polyphosphate to 1.5L of ethanol-water solution with a volume ratio of 9:1. After sonication for 10min, an ammonium polyphosphate solution is obtained. 1,12-diaminododecane ethanol solution is added dropwise under mechanical stirring at 300rpm. The reaction is carried out at room temperature for 2h. After filtration, the precipitate is washed with ethanol 4 times. Finally, it is dried at 70℃ for 12h to obtain modified ammonium polyphosphate.

[0094] S2: 120g of modified ammonium polyphosphate was added to 750mL of ethanol-water solution with a volume ratio of 9:1. After ultrasonic treatment for 10min, the modified ammonium polyphosphate aqueous solution was obtained. Under mechanical stirring at 300rpm, 150mL of 0.15g / mL tris(hydroxymethyl)aminomethane aqueous solution was added. The pH was then adjusted to 8.5 with 0.1g / mL NaOH solution. Then, 190mL of 3wt% H2O2 aqueous solution was added, followed by dropwise addition of tannic acid ethanol solution. The reaction was carried out at 50℃ for 6h. After filtration, the precipitate was washed 4 times with ethanol and dried at 60℃ for 24h to obtain a multifunctional flame retardant.

[0095] Experimental Example

[0096] The performance of the integrated thermal insulation and waterproofing structural membranes prepared in Examples 6-8 was tested, and the test results are shown in Table 2:

[0097] Table 2

[0098]

[0099] The tensile strength data of the integrated thermal insulation and waterproofing structural membrane are shown in Table 3:

[0100] Table 3

[0101]

[0102] Based on Tables 2 and 3, and from Examples 6-8 and Comparative Examples 1-3, the integrated thermal insulation and waterproofing structural roll prepared in Example 6 of this invention exhibits good waterproofing, flame retardancy, weather resistance, thermal insulation, and tear resistance. A comparison of Comparative Examples 1-3 and Examples 6-8 shows that the absence of a multifunctional flame retardant reduces the flame retardancy of polyethylene, thereby lowering the flame retardancy rating of the integrated thermal insulation and waterproofing structural roll, while also reducing weather resistance and tear resistance. The addition of unmodified ammonium polyphosphate, due to its poor water resistance, poor compatibility with polyethylene, and tendency to migrate, reduces the waterproofing and flame retardancy of the integrated thermal insulation and waterproofing structural roll, while also reducing weather resistance and tear resistance. The multifunctional flame retardant, lacking the tris(2-hydroxyethyl) isocyanurate organosiloxane precursor, lacks the bonding of a silane coupling agent, resulting in reduced compatibility with polyethylene, weather resistance, and tear resistance.

[0103] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0104] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A thermal insulation and waterproof integrated structural roll, characterized in that, It includes a lightweight polymer waterproof membrane layer, an insulation layer, and a facing layer; wherein the lightweight polymer waterproof membrane layer is the top layer, the insulation layer is the middle layer, and the facing layer is the bottom layer. The lightweight polymer waterproof membrane layer is made by bonding a polymer waterproof surface layer and a reinforcing layer from top to bottom. The polymer waterproof surface layer comprises the following components: 60-80 parts of polyethylene, 13-18 parts of multifunctional flame retardant, 2-4 parts of antioxidant, 1-3 parts of plasticizer, 3-5 parts of lubricant, and 1-2 parts of ultraviolet absorber. The preparation method of the multifunctional flame retardant includes the following steps: S1: Ammonium polyphosphate was added to an aqueous ethanol solution and ultrasonically treated to obtain an ammonium polyphosphate solution. 1,12-diaminododecane ethanol solution was added dropwise under mechanical stirring. The reaction was carried out at room temperature, filtered, washed, and dried to obtain modified ammonium polyphosphate. S2: Modified ammonium polyphosphate was added to an aqueous ethanol solution and ultrasonically treated to obtain an aqueous modified ammonium polyphosphate solution. Tris(hydroxymethyl)aminomethane aqueous solution was added under mechanical stirring. The pH was then adjusted to 8-9 with NaOH solution. H2O2 aqueous solution was added, followed by the addition of tannic acid ethanol solution. The reaction was continued, and finally, tris(2-hydroxyethyl) isocyanurate organosiloxane precursor was added to continue the reaction. The mixture was filtered, washed, and dried to obtain a multifunctional flame retardant. In step S2, the tannic acid ethanol solution is prepared by dissolving 30-60g of tannic acid in 300-600mL of ethanol; the ratio of modified ammonium polyphosphate, ethanol aqueous solution, tris(hydroxymethyl)aminomethane aqueous solution, H2O2 aqueous solution, and tris(2-hydroxyethyl)isocyanurate organosiloxane precursor is 80-160g:500-1000mL:100-200mL:125-250mL:3-5g; the volume ratio of ethanol to water in the ethanol aqueous solution is 9:

1. :1; The concentration of tris(hydroxymethyl)aminomethane aqueous solution is 0.15 g / mL; the concentration of NaOH solution is 0.1 g / mL; the mass fraction of H2O2 aqueous solution is 3 wt%; reaction conditions: reaction temperature is 45-55℃, reaction time is 5-7 h; continued reaction conditions: continued reaction temperature is 55-65℃, continued reaction time is 0.5-1.5 h; washing method: wash the precipitate with ethanol 3-5 times; drying conditions: dry at 55-65℃ for 20-28 h; The preparation method of the tris(2-hydroxyethyl) isocyanurate organosiloxane precursor includes the following steps: Tris(2-hydroxyethyl) isocyanurate and propyltriethoxysilane isocyanate were mixed in a molar ratio of 1:1 and reacted at 140-145 °C for 3.5-4.5 h. The mixture was then cooled to room temperature in air to obtain the tris(2-hydroxyethyl) isocyanurate organosiloxane precursor.

2. The integrated thermal insulation and waterproofing structural membrane according to claim 1, characterized in that, The thickness of the polymer waterproof surface layer is 1.0-2.0 mm, and the thickness of the reinforcing layer is 0.1-0.5 mm. The adhesive used to bond the polymer waterproof surface layer and the reinforcing layer is neoprene adhesive. The antioxidant includes at least one of antioxidant 168 and antioxidant 1010. The lubricant includes at least one of paraffin wax and polyethylene wax. The plasticizer includes at least one of diisononyl phthalate and epoxidized soybean oil. The ultraviolet absorber is UV-531. The reinforcing layer includes non-woven fabric, fiber mesh fabric, or high-strength film. The material of the reinforcing layer includes glass fiber, polyester fiber, or aramid fiber. The insulation layer includes glass wool or rock wool board. The thickness of the insulation layer is 25-250 mm. The facing layer is one of PP composite fiberglass cloth, PVC composite fiberglass cloth, PP composite kraft paper, and aluminum foil composite kraft paper, with a thickness of 0.07-0.2 mm.

3. The integrated thermal insulation and waterproofing structural membrane according to claim 1, characterized in that, In step S1, the 1,12-diaminododecane ethanol solution is prepared by adding 40-80g of 1,12-diaminododecane to 500-1000mL of ethanol; the ratio of ammonium polyphosphate to ethanol aqueous solution is 160-320g:1-2L; the volume ratio of ethanol to water in the ethanol aqueous solution is 9:1; the ultrasonic treatment time is 8-12min; the mechanical stirring speed is 200-400rpm; the reaction time at room temperature is 1.5-2.5h; the washing method is to wash the precipitate with ethanol 3-5 times; the drying method is to dry it at 65-75℃ for 10-14h.

4. The integrated thermal insulation and waterproofing structural membrane according to claim 1, characterized in that, In step S2, the ultrasonic treatment time is 8-12 minutes; the mechanical stirring speed is 200-400 rpm.

5. A method for preparing an integrated thermal insulation and waterproofing structural roll according to any one of claims 1-4, characterized in that, Includes the following steps: Step (1) Unfold the lightweight polymer waterproof membrane on the cloth roll roller, and then evenly coat the bottom layer of the lightweight polymer waterproof membrane with lightweight spray adhesive and then attach it to the upper surface of the insulation layer. Step (2) Unfold the facing layer on the fabric roll roller, apply adhesive by roller coating and heat to obtain a heated adhesive facing layer; Step (3) combines the heated adhesive-coated surface layer with the lower surface of the insulation layer in step (1), and then combines it with the heating roller by bidirectional extrusion through the cotton pressing roller directly above the heating roller to obtain an integrated thermal insulation and waterproof structure roll.

6. The method for preparing the integrated thermal insulation and waterproofing structural membrane according to claim 5, characterized in that, In step (1), the amount of adhesive dispensed is 35-80 g / m³. 2 In step (2), the adhesive is either 2051 glue or 1001 glue; the roller coating amount is 30-80 g / m². 2 The adhesive coating thickness is 0.1-0.2mm, and the width is consistent with the insulation layer; the 2051 adhesive is heated to 80-160℃ by a heating roller; in step (3), the extrusion composite pressure is 0.6-0.8MPa.

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