Sandwich composite wallboard produced by utilizing plant straws

Abstract

The invention provides a sandwich composite wallboard produced by utilizing plant straws, which relates to the technical field of composite boards and comprises a plant straw biomass board, an inorganic panel without a veneer, an inorganic panel with a veneer, a paint surface, a steel U-shaped groove and a box body framework, the width of the steel U-shaped groove is equal to the thickness of the plant straw biomass plate, so that the plant straw biomass plate is matched with the steel U-shaped groove to form the plant straw constraint biomass plate with the steel U-shaped groove; an inorganic panel without a veneer and an inorganic panel with a veneer are arranged on the two sides of the plant straw constraint biomass plate in an attached mode respectively, and a primary sandwich composite wallboard is formed; a paint surface is arranged on the non-attached surface of the non-facing inorganic panel; the primary sandwich composite wallboards are placed on the box body framework, and the chamfered areas of the primary sandwich composite wallboards and the box body framework are sealed through weather-proof sealant to form the sandwich composite wallboards; one side face of the inorganic panel with the facing faces indoors, and the paint face faces outdoors.

Description

Technical Field

[0001] This invention relates to the field of composite panel technology, and in particular to a sandwich composite wall panel produced using plant straw. Background Technology

[0002] Plant straw wall panels are an environmentally friendly wall material made primarily from plant straw through a special process. The straw is cooked at high temperatures, compressed, and then combined with natural adhesives or other materials to form wall panels with excellent heat insulation, sound insulation, and pressure resistance. These wall panels are not only lightweight but also effectively reduce resource waste and environmental pollution.

[0003] Straw, as a byproduct of agriculture, is renewable. Utilizing it to produce wall panels can effectively reduce the accumulation and burning of agricultural waste, thus lowering environmental pollution. Simultaneously, plant straw wall panels possess excellent thermal insulation properties, improving building energy efficiency and reducing energy consumption, meeting the demands of modern green building. It is not only environmentally friendly but also economical, and can be widely applied in the construction of energy-efficient and low-carbon buildings, promoting the sustainable development of the construction industry.

[0004] Existing plant straw wall panels have strong hygroscopic properties, are greatly affected by changes in environmental humidity, and have insufficient heat insulation effects. When air humidity changes, the straw wall panels will expand or contract, leading to deformation and cracking. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a sandwich composite wall panel produced using plant straw, which can solve the technical problems of existing plant straw wall panels having strong hygroscopicity, being greatly affected by changes in environmental humidity, and having insufficient heat insulation effect. When the air humidity changes, the straw wall panel will expand or contract, resulting in deformation and cracking of the wall panel.

[0006] This invention provides a sandwich composite wall panel produced using plant straw, comprising: plant straw biomass board, unfinished inorganic panel, finished inorganic panel, painted surface, steel U-shaped channel, and box frame; The width of the steel U-shaped groove is equal to the thickness of the plant straw biomass board, so that the plant straw biomass board and the steel U-shaped groove can be matched to form a plant straw constrained biomass board with a steel U-shaped groove. The two sides of the biomass board, which is bound by plant straw, are respectively provided with an unfinished inorganic panel and a finished inorganic panel to form a primary sandwich composite wall panel. The un-bonded side of the unfinished inorganic panel has a painted finish; The primary sandwich composite wall panel is placed on the box frame. The chamfered area between the primary sandwich composite wall panel and the box frame is sealed with weather-resistant adhesive to form a sandwich composite wall panel. The box frame is used to support the primary sandwich composite wall panel. The inorganic panel with decorative finish is placed with one side facing indoors and the painted side facing outdoors.

[0007] Optionally, the unfinished inorganic panel is specifically an unfinished desulfurized gypsum panel.

[0008] Optionally, the paint finish is specifically a fluorocarbon paint finish.

[0009] Optionally, the steel U-shaped channel is fixedly connected to the box frame by welding.

[0010] Optionally, both the unfinished inorganic panel and the finished inorganic panel are spaced a first preset distance from the enclosure frame.

[0011] Optionally, the bonding length between the unfinished inorganic panel and the finished inorganic panel and the steel U-shaped channel is the second preset distance. Optionally, the ratio of the first preset distance to the second preset distance is 1:4.

[0012] Alternatively, the unfinished inorganic panel and the finished inorganic panel have the same thickness.

[0013] Optionally, the thickness ratio of the unfinished inorganic panel, the plant straw biomass board, and the finished inorganic panel is 1:12:1.

[0014] Optionally, the outer surface of the plant straw biomass board is covered with kraft paper.

[0015] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this embodiment of the invention, the mechanical properties of the plant straw biomass board are enhanced by constraining it with a steel U-shaped groove, avoiding the deformation and cracking problems of traditional straw boards. Furthermore, the combination of unfinished and finished inorganic panels on both sides of the wall panel improves its aesthetics while enhancing its thermal insulation and waterproofing performance. The paint coating design provides excellent waterproof and moisture-proof properties, while also improving the wall's weather resistance. The use of weather-resistant sealant enhances the overall structural stability and effectively resists changes in environmental humidity, solving the problems of high moisture absorption and insufficient insulation in traditional straw wall panels. This sandwich composite wall panel not only possesses strong mechanical strength but also improves building energy efficiency, demonstrating good environmental friendliness and sustainable development potential. Attached Figure Description

[0016] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of a sandwich composite wall panel produced using plant straw, provided by an embodiment of the present invention.

[0018] Attached drawings: 1. Plant straw biomass board; 2. Unfinished inorganic panel; 3. Finished inorganic panel; 4. Painted finish; 5. Steel U-shaped channel; 6. Box frame; 7. Weather-resistant adhesive. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions 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, not all embodiments. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this invention.

[0021] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention.

[0022] Reference manual attached Figure 1 The diagram shows a structural schematic of a sandwich composite wall panel produced using plant straw, provided by an embodiment of the present invention.

[0023] The present invention provides a structure for a sandwich composite wall panel produced using plant straw, comprising: a plant straw biomass board 1, an unfinished inorganic panel 2, a finished inorganic panel 3, a painted surface 4, a steel U-shaped channel 5, and a box frame 6.

[0024] The width of the steel U-shaped groove 5 is equal to the thickness of the plant straw biomass board 1, so that the plant straw biomass board 1 and the steel U-shaped groove 5 are fitted together to form a plant straw constrained biomass board with the steel U-shaped groove 5.

[0025] The two sides of the biomass board, which is bound by plant straw, are respectively provided with an unfinished inorganic panel 2 and a finished inorganic panel 3, forming a primary sandwich composite wall panel.

[0026] The unattached side of the unfinished inorganic panel 2 is covered with a painted surface 4.

[0027] The primary sandwich composite wall panel is placed on the box frame 6. The chamfered area between the primary sandwich composite wall panel and the box frame 6 is sealed with weather-resistant adhesive 7 to form a sandwich composite wall panel. The box frame 6 is used to support the primary sandwich composite wall panel.

[0028] The inorganic panel 3 with decorative finish is arranged with one side facing indoors, and the painted surface 4 is arranged with the other side facing outdoors.

[0029] Among them, plant straw biomass board 1 is the core material of sandwich composite wall panel. It is made from processed plant straw and has good environmental protection characteristics. The straw biomass board itself provides structural strength to the wall panel and has strong moisture absorption and heat insulation properties, but it is prone to deformation and cracking when used directly. Therefore, other materials are needed to enhance its performance.

[0030] The steel U-shaped channel 5 is used to constrain the shape of the plant straw biomass board 1. The width of the channel is equal to the thickness of the plant straw biomass board 1. Through this structural cooperation, a stable sandwich composite board is formed. The steel U-shaped channel 5 provides additional mechanical support, avoiding deformation and cracking of the straw board, and enhancing its stability and load-bearing capacity.

[0031] The unfinished inorganic panel 2 is installed on one side of the plant straw biomass board 1, primarily providing a robust outer layer of protection to prevent the inner material from being affected by the external environment. The main function of this unfinished panel is to increase the strength and durability of the wall panel, but it does not have a decorative function.

[0032] The decorative inorganic panel 3, located on the other side facing the interior, serves as the decorative layer of the sandwich composite wall panel, providing an aesthetically pleasing surface. It not only offers protection but also enhances the wall's thermal and sound insulation, improving indoor comfort.

[0033] Paint 4 covers the unbonded side of the unfinished inorganic panel 2, primarily serving to provide waterproofing, moisture resistance, and aesthetic enhancement. Paint 4 enhances the weather resistance of the outer layer, enabling the wall to better withstand the impact of the external environment and extending the service life of the wall panel.

[0034] The box frame 6 is the structural component that supports the entire sandwich composite wall panel, ensuring that the wall panel can stably bear the weight in the building. The chamfered areas of the box frame 6 are sealed with weather-resistant sealant 7, effectively isolating moisture and air and enhancing the overall structural airtightness.

[0035] Weather-resistant sealant 7 is used to seal the chamfered area between the primary sandwich composite wall panel and the box frame 6. Weather-resistant sealant 7 has excellent waterproof and moisture-proof properties, which can effectively prevent moisture from seeping into the interior of the wall and ensure the long-term stability of the wall panel.

[0036] The inorganic panel 3 with its decorative finish faces inwards, while the painted surface 4 faces outwards. This design allows the wall panel to combine aesthetics and protective functions. Through this multi-layered structure, the sandwich composite wall panel not only solves the problems of insufficient mechanical properties, high moisture absorption, and poor thermal insulation of traditional straw wall panels, but also enhances overall stability and durability.

[0037] It should be noted that this sandwich composite wall panel produced using plant straw has multiple advantages. The steel U-shaped groove 5 constrains the shape of the straw biomass board, effectively improving the stability and load-bearing capacity of the wall panel and avoiding the deformation and cracking problems of traditional straw boards. The multi-layered structural design, combined with unfinished and finished inorganic panels 3, not only enhances the strength and durability of the wall but also improves thermal insulation and soundproofing. The paint coating 4 provides waterproof and moisture-proof functions, extending the service life of the wall panel. Simultaneously, the support of the box frame 6 and the sealing design of the weather-resistant sealant 7 make the entire wall panel system perform excellently in resisting the impact of external environmental factors, providing a more stable, safe, and environmentally friendly building solution.

[0038] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this embodiment of the invention, the steel U-shaped groove 5 constrains the plant straw biomass board 1, enhancing the mechanical properties of the wall panel and avoiding the deformation and cracking problems of traditional straw boards. Furthermore, the combination of unfinished inorganic panels 2 and finished inorganic panels 3 on both sides of the wall panel improves its aesthetics while enhancing its thermal insulation and waterproofing performance. The paint coating 4 provides excellent waterproof and moisture-proof properties, while also enhancing the wall's weather resistance. The weather-resistant sealant 7 seals the wall, improving the overall structural stability and effectively resisting changes in environmental humidity, thus solving the problems of high moisture absorption and insufficient thermal insulation in traditional straw wall panels. This sandwich composite wall panel not only possesses strong mechanical strength but also improves building energy efficiency, exhibiting good environmental protection and sustainable development potential.

[0039] In one possible implementation, the unfinished inorganic panel 2 is specifically an unfinished desulfurized gypsum panel.

[0040] It should be noted that the unfinished inorganic panel 2 is specifically an unfinished desulfurized gypsum panel. This material has excellent fire resistance, corrosion resistance, and moisture resistance, effectively enhancing the strength and stability of the wall panel while also possessing good environmental friendliness. As an environmentally friendly material, desulfurized gypsum reduces the use of industrial waste and provides a solid foundation for the wall structure.

[0041] In one possible implementation, the paint finish 4 is specifically a fluorocarbon paint finish 4.

[0042] Among them, fluorocarbon paint surface 4 is a high-performance coating with excellent weather resistance, UV resistance, and corrosion resistance. It can effectively protect wall panels from the influence of the external environment, prevent moisture penetration and corrosion, while maintaining a long-term bright color and smooth surface, thus improving the durability and service life of the wall.

[0043] In one possible implementation, the steel U-shaped channel 5 is fixedly connected to the box frame 6 by welding.

[0044] It should be noted that the steel U-shaped channel 5 is fixedly connected to the box frame 6 by welding, which ensures the structural stability and load-bearing capacity of the entire sandwich composite wall panel. The welding connection provides a high-strength connection, enhances the overall compressive strength and stability of the wall panel, ensures that it will not loosen or deform during long-term use, and improves the durability and safety of the wall panel.

[0045] In one possible implementation, both the unfinished inorganic panel 2 and the finished inorganic panel 3 are spaced apart from the housing frame 6 by a first preset distance.

[0046] Specifically, the unfinished inorganic panel 2 and the finished inorganic panel 3 maintain a first preset distance from the frame 6, which effectively avoids direct contact between the wall panels and the frame, thereby reducing deformation or stress concentration caused by temperature changes and humidity fluctuations. This design helps to enhance the structural stability of the wall panels, improve the thermal and sound insulation performance of the wall, and enhance the overall usability.

[0047] It should be noted that those skilled in the art can set the size of the first preset distance according to actual needs, and the present invention does not limit this.

[0048] In one possible implementation, the bonding length between the unfinished inorganic panel 2 and the finished inorganic panel 3 and the steel U-shaped groove 5 is a second preset distance.

[0049] Specifically, the bonding length between the unfinished inorganic panel 2 and the finished inorganic panel 3 and the steel U-shaped groove 5 is set to a second preset distance, which helps to ensure a tight fit between the layers of the wall panel and enhances the stability and sealing of the overall structure. By reasonably controlling the bonding length, gaps caused by thermal expansion and contraction of materials can be avoided, improving the strength, durability and deformation resistance of the wall panel, and ensuring safety and performance during long-term use.

[0050] It should be noted that those skilled in the art can set the size of the second preset distance according to actual needs, and the present invention does not limit this.

[0051] In one possible implementation, the ratio of the first preset distance to the second preset distance is 1:4.

[0052] It should be noted that the ratio of the first preset distance to the second preset distance is 1:4, meaning that the distance between the box frame 6 and the panel is smaller than the fitting length between the panel and the steel U-shaped channel 5. This proportional design helps to optimize the fit and stress distribution between layers while ensuring structural stability, reducing stress concentration, improving the overall strength and durability of the wall panel, and ensuring its long-term stability in actual use.

[0053] Optionally, the first preset distance can be 5mm, and the second preset distance can be 20mm.

[0054] In one possible implementation, the unfinished inorganic panel 2 and the finished inorganic panel 3 have the same thickness.

[0055] Understandably, the design of having the same thickness for both the unfinished inorganic panel 2 and the finished inorganic panel 3 ensures balanced stress distribution and structural stability across all layers of the wall panel. This uniform thickness helps achieve overall symmetry in the wall panel, avoiding uneven stress or deformation caused by thickness differences. It also enhances the wall panel's heat and sound insulation, making its performance more stable and improving its service life and reliability.

[0056] In one possible implementation, the thickness ratio of the unfinished inorganic panel 2, the plant straw biomass board 1, and the finished inorganic panel 3 is 1:12:1.

[0057] It should be noted that the thickness ratio of the unfinished inorganic panel 2, the plant straw biomass board 1, and the finished inorganic panel 3 is 1:12:1. This design ensures that the plant straw biomass board 1, as the core material, provides greater thermal insulation and structural strength support, while the inorganic panels on both sides provide necessary protection and stability. This thickness ratio rationally allocates the functions of each layer, achieving an optimal balance between thermal insulation, sound insulation, and strength in the wall panel, thus enhancing the overall performance and durability of the wall.

[0058] Optionally, the thicknesses of the unfinished inorganic panel 2, the plant straw biomass board 1, and the finished inorganic panel 3 can be 5mm, 60mm, and 5mm, respectively.

[0059] In one possible implementation, the outer surface of the plant straw biomass board 1 is wrapped with kraft paper.

[0060] Understandably, wrapping the outer surface of the plant straw biomass board 1 with kraft paper effectively enhances the surface protection of the wall panel. Kraft paper has good tensile strength and abrasion resistance, preventing damage to the surface of the plant straw from the external environment, while also improving the wall panel's moisture resistance and durability. In addition, kraft paper also has environmentally friendly properties, making the overall material greener and more sustainable.

[0061] In practical applications, sandwich composite wall panels made from plant straw employ a multi-layered structural design, combining plant straw biomass boards 1, unfinished inorganic panels 2, and finished inorganic panels 3, providing excellent mechanical properties, thermal insulation, and sound insulation. Steel U-shaped channels 5 constrain the plant straw biomass boards 1, preventing deformation and cracking, and enhancing the stability and load-bearing capacity of the wall panel. The paint coating 4 improves the wall's waterproofing, moisture resistance, and weather resistance, extending its service life. The box frame 6 and weather-resistant adhesive 7 seal the design, enhancing the wall panel's sealing and moisture resistance. The overall structural optimization ensures both environmental friendliness and improved strength, durability, and safety of the wall panel.

[0062] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A sandwich composite wall panel produced using plant straw, characterized in that, include: Plant straw biomass board (1), unfinished inorganic panel (2), finished inorganic panel (3), painted surface (4), steel U-shaped channel (5) and box frame (6); The width of the steel U-shaped groove (5) is equal to the thickness of the plant straw biomass board (1), so that the plant straw biomass board (1) and the steel U-shaped groove (5) are matched and arranged to form a plant straw constrained biomass board with steel U-shaped groove (5). The two sides of the plant straw-constrained biomass board are respectively provided with the undecorated inorganic panel (2) and the decorated inorganic panel (3) to form a primary sandwich composite wall panel; The unattached side of the unfinished inorganic panel (2) is provided with the paint surface (4); The primary sandwich composite wall panel is placed on the box frame (6), and the chamfered area between the primary sandwich composite wall panel and the box frame (6) is sealed with weather-resistant adhesive (7) to form the sandwich composite wall panel, wherein the box frame (6) is used to support the primary sandwich composite wall panel. The inorganic panel (3) with decorative finish is arranged with one side facing indoors, and the paint finish (4) is arranged with the other side facing outdoors.

2. The sandwich composite wall panel produced using plant straw according to claim 1, characterized in that, The unfinished inorganic panel (2) is specifically an unfinished desulfurized gypsum panel.

3. The sandwich composite wall panel produced using plant straw according to claim 1, characterized in that, The paint finish (4) is specifically a fluorocarbon paint finish (4).

4. The sandwich composite wall panel produced using plant straw according to claim 1, characterized in that, The steel U-shaped channel (5) is fixedly connected to the box frame (6) by welding.

5. The sandwich composite wall panel produced using plant straw according to claim 1, characterized in that, Both the undecorated inorganic panel (2) and the decorated inorganic panel (3) are spaced a first preset distance from the box frame (6).

6. The sandwich composite wall panel produced using plant straw according to claim 5, characterized in that, The fitting lengths of both the unfinished inorganic panel (2) and the finished inorganic panel (3) with the steel U-shaped groove (5) are the second preset distances.

7. The sandwich composite wall panel produced using plant straw according to claim 6, characterized in that, The ratio of the first preset distance to the second preset distance is 1:

4.

8. The sandwich composite wall panel produced using plant straw according to claim 1, characterized in that, The unfinished inorganic panel (2) and the finished inorganic panel (3) have the same thickness.

9. The sandwich composite wall panel produced using plant straw according to claim 8, characterized in that, The thickness ratio of the undecorated inorganic panel (2), the plant straw biomass board (1), and the decorated inorganic panel (3) is 1:12:

1.

10. The sandwich composite wall panel produced using plant straw according to claim 1, characterized in that, The outer surface of the plant straw biomass board (1) is wrapped with kraft paper.

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