Polypropylene frame nanometer heat insulation plate

Abstract

The utility model discloses a polypropylene frame nanometer thermal insulation board, which comprises a thermal insulation board body, the outer end of the thermal insulation board body is fixedly connected with an MPP reinforced frame, the thermal insulation board body comprises a protective layer, an electromagnetic shielding layer, a thermal insulation layer, a sound absorption damping layer, a fireproof blocking layer and a lining layer, the protective layer is attached to the electromagnetic shielding layer, and the lining layer is attached to the thermal insulation layer. A traditional silica gel frame is replaced by the MPP frame, a multi-layer functional structure is integrated, the comprehensive performance and the application range of the nanometer heat insulation plate are remarkably improved, the fire endurance breaks through 1.5 hours through double protection of the flame-retardant MPP surface layer and the ceramic coating, leap-type improvement is achieved compared with 0.5 hour of the silica gel frame, and the service life of the nanometer heat insulation plate is prolonged. The aerogel core layer is embedded into the MPP reinforcing ribs, so that the heat insulation and bearing capacity structure is optimized, and the physical performance of the heat insulation plate is improved to a great extent.

Description

Technical Field

[0001] This utility model relates to the field of heat insulation board technology, and in particular to a polypropylene frame nano heat insulation board. Background Technology

[0002] Polypropylene framed nano-insulation panels are a new type of composite material with polypropylene (PP) material as the frame support and nano-insulation core material inside. This product is mainly used in building energy conservation (such as curtain wall insulation, cold storage enclosure), transportation (new energy vehicle battery pack insulation, high-speed rail carriage insulation) and industrial equipment (pipeline insulation, storage tank insulation). Its lightweight characteristics (30%-50% lighter than traditional materials) can significantly reduce structural load. At the same time, the hydrophobicity and fire resistance of nanomaterials (up to Class A fire resistance) meet the requirements of harsh environments, making it a new energy-saving solution in the fields of green building and high-end equipment manufacturing.

[0003] Traditional silicone frame nanosheets face multiple bottlenecks due to the inherent defects of silicone material: silicone has a low elastic modulus (≤1.5MPa), leading to leakage at the joints due to long-term deformation; silicone has poor flame retardancy, with a fire resistance limit of only 0.5 hours and excessive smoke density; and silicone's high density results in a sheet surface density of up to 12kg / m³. 2 Meanwhile, silicone is not recyclable, which goes against the trend of green building. It cannot integrate electromagnetic shielding or antibacterial modules inside, and additional construction is required to add functional layers, which greatly reduces the applicability of the entire insulation board. Utility Model Content

[0004] The purpose of this invention is to provide a polypropylene frame nano-insulation board, which solves the problem of poor flame retardant performance and low applicability of traditional silicone frame nano-boards due to the inherent defects of silicone material.

[0005] To achieve the above objectives, a polypropylene frame nano-insulation board is provided, comprising an insulation board body, characterized in that an MPP reinforced frame is fixedly connected to the outer end of the insulation board body, and the insulation board body comprises a protective layer, an electromagnetic shielding layer, a heat insulation layer, a sound-absorbing damping layer, a fireproof barrier layer, and an inner lining layer, wherein the protective layer and the electromagnetic shielding layer are bonded together.

[0006] The electromagnetic shielding layer is bonded to the heat insulation layer, the heat insulation layer is bonded to the sound-absorbing damping layer, the sound-absorbing damping layer is bonded to the fireproof barrier layer, and the fireproof barrier layer is bonded to the inner lining layer.

[0007] According to the aforementioned polypropylene frame nano-insulation board, the protective layer is made of flame-retardant modified polypropylene material, and the surface is composited with a nano-ceramic coating.

[0008] According to the aforementioned polypropylene frame nano-insulation board, the electromagnetic shielding layer is made of carbon nanotube conductive composite material.

[0009] According to the aforementioned polypropylene frame nano-insulation board, the insulation layer is made of nano-aerogel felt material.

[0010] According to the aforementioned polypropylene frame nano-insulation board, the sound-absorbing damping layer is made of open-cell MPP foam material.

[0011] The above-mentioned solution has the following beneficial effects:

[0012] 1. This patent significantly improves the overall performance and application scope of nano-insulation boards by replacing the traditional silicone frame with an MPP frame and integrating a multi-layer functional structure. The dual protection of the flame-retardant MPP surface layer and the ceramic coating enables the fire resistance limit to exceed 1.5 hours, a leap forward compared to the 0.5 hours of the silicone frame. The aerogel core layer is embedded with MPP reinforcing ribs to optimize the structure of heat insulation and load-bearing capacity, greatly improving the physical properties of the insulation board.

[0013] 2. This patent breaks through the limitations of traditional single-function boards by vertically integrating sound-absorbing, fireproof, and antibacterial layers, which can meet the high requirements of clean rooms, medical buildings, and other scenarios. The on-demand implantation of modular electromagnetic shielding layers enables electromagnetic attenuation of more than 30dB, which is suitable for emerging needs such as 5G base stations.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is an overall schematic diagram of a polypropylene frame nano-insulation plate according to the present invention.

[0017] Figure 2 This is an exploded view of a polypropylene frame nano-insulation plate according to the present invention.

[0018] Figure 3 This is a cross-sectional view of a polypropylene frame nano-insulation plate according to the present invention.

[0019] Legend:

[0020] 1. MPP reinforced frame; 2. Heat insulation board body; 3. Protective layer; 4. Electromagnetic shielding layer; 5. Heat insulation layer; 6. Sound absorption damping layer; 7. Fireproof barrier layer; 8. Inner lining layer. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1-3 This utility model provides a polypropylene frame nano-insulation board, comprising an insulation board body 2, with an MPP reinforced frame 1 fixedly connected to the outer end of the insulation board body 2. The insulation board body 2 includes a protective layer 3, an electromagnetic shielding layer 4, an insulation layer 5, a sound-absorbing damping layer 6, a fireproof barrier layer 7, and an inner lining layer 8. The protective layer 3 and the electromagnetic shielding layer 4 are bonded together. The above layers are connected by a hot melt adhesive film lamination process. Furthermore, the aerogel layer is pre-punched, and epoxy resin / graphene composite adhesive (thermal conductivity 0.8W / m·K) is injected. After curing, a thermal bridge blocking structure is formed with a shear strength >15MPa. The electromagnetic shielding layer 4 is bonded to the insulation layer 5, the insulation layer 5 is bonded to the sound-absorbing damping layer 6, the sound-absorbing damping layer 6 is bonded to the fireproof barrier layer 7, and the fireproof barrier layer 7 is bonded to the inner lining layer 8.

[0023] The protective layer 3 is made of flame-retardant modified polypropylene material, and the surface is coated with a nano-ceramic coating. Through the nitrogen and phosphorus flame-retardant modified polypropylene (UL94V-0 grade) + Al2O3 / SiO2 sol-gel coating, the board can have the advantages of impact resistance (Mohs hardness 7), weather resistance (-40~120℃), and fire resistance (the ceramic layer reflects 85% of radiant heat), replacing the problem of easy aging of silicone.

[0024] Electromagnetic shielding layer 4 uses carbon nanotube conductive composite material, which combines MPP with 8% multi-walled carbon nanotubes through melt blending and ultrasonic dispersion process. The CNTs form a three-dimensional permeable network with a shielding effectiveness of more than 30dB. It can be customized and implanted into 5G base station / data center scenarios.

[0025] The insulation layer 5 is made of nano-aerogel felt material, which is silica aerogel prepared by supercritical drying and embedded with polyester fibers (density 80 g / m³) using a needle-punching method. 2 It prevents brittle fracture, achieves super thermal insulation (thermal resistance increased by 40%), compressive strength >100kPa, and avoids aerogel layer collapse;

[0026] The sound-absorbing damping layer 6 uses open-cell MPP foam material, employing 85% open-cell MPP foam + 0.5% nano-graphene, achieving an NRC of 0.75 for mid-to-low frequency sound absorption (compared to only 0.6 for traditional polyurethane), and is resistant to damp heat (50 kg / m²). 3 The effect of density;

[0027] The fireproof barrier layer 7 is made by blending and extruding ammonium polyphosphate (APP) / pentaerythritol (PER) / melamine (MEL) with MPP in a ratio of 5:2:1. When exposed to fire, it generates a dense char layer (expansion ratio ≥30) with a thermal conductivity of <0.1W / (m·K), which greatly improves the fire resistance of the entire board.

[0028] The inner liner layer 8 is made of MPP and 2% nano zinc oxide (ZnO, particle size 30-50nm) co-extruded blown film, with an antibacterial rate of >99.5% and the ability to decompose organic pollutants under ultraviolet light, meeting the requirements of medical cleanliness. Meanwhile, the MPP reinforced frame is composed of 20% glass fiber reinforced MPP (tensile strength ≥60MPa) + 1mm anodized aluminum alloy, providing rigid support (resistant to wind pressure 200kg / m). 2 Modular splicing (tolerance ±0.1mm) solves the problem of silicone frame deformation and leakage.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A polypropylene framed nano-insulation panel, comprising an insulation panel body (2), characterized in that, The outer end of the heat insulation board body (2) is fixedly connected to an MPP reinforced frame (1). The heat insulation board body (2) includes a protective layer (3), an electromagnetic shielding layer (4), a heat insulation layer (5), a sound-absorbing damping layer (6), a fireproof barrier layer (7), and an inner lining layer (8). The protective layer (3) is attached to the electromagnetic shielding layer (4). The electromagnetic shielding layer (4) is bonded to the heat insulation layer (5), the heat insulation layer (5) is bonded to the sound-absorbing damping layer (6), the sound-absorbing damping layer (6) is bonded to the fireproof barrier layer (7), and the fireproof barrier layer (7) is bonded to the inner lining layer (8).

2. The polypropylene framed nano-insulation board according to claim 1, characterized in that, The protective layer (3) is made of flame-retardant modified polypropylene material and has a composite nano-ceramic coating on its surface.

3. The polypropylene framed nano-insulation board according to claim 1, characterized in that, The electromagnetic shielding layer (4) is made of carbon nanotube conductive composite material.

4. The polypropylene framed nano-insulation board according to claim 1, characterized in that, The heat insulation layer (5) is made of nano-aerogel felt material.

5. A polypropylene framed nano-insulation board according to claim 1, characterized in that, The sound-absorbing damping layer (6) is made of open-cell MPP foam material.

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