Improved light thermoplastic core layer

Abstract

One of the improved lightweight thermoplastic core layers includes an interconnected panel unit. The interconnection panel unit comprises a decoration panel and a foaming core layer arranged on one side of the decoration panel, and the elastic modulus of the interconnection panel unit is gt; and the pressure is 7000 Mpa. The foaming core layer comprises a thermoplastic matrix, a regenerated filler, wood fibers and / or metal particles, a heat-resistant additive, a fire-resistant additive and a coupling agent. According to the improved light thermoplastic core layer, the elastic modulus of the foaming core layer is improved, and the risk of heating deformation of the plastic core layer is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of building materials, in particular to an improved light thermoplastic core layer. Background Art

[0002] Lightweight thermoplastic core foams have found wide applications in a variety of fields due to their unique lightness and plasticity. These materials are used in sporting goods, aerospace, transportation, marine, subsea, radar and telecommunications industries, and wind energy for their excellent mechanical properties and environmental benefits. However, despite the significant advantages these materials offer, they still face several technical and material challenges.

[0003] However, a major technical challenge of lightweight thermoplastic core foam materials is their low modulus value, which is an important parameter to measure the rigidity of a material. Low modulus means that the material is easily deformed when subjected to external forces. This characteristic limits the use of these materials in applications that require high rigidity. Summary of the invention

[0004] In view of this, the present invention provides an improved lightweight thermoplastic core layer with improved core rigidity to meet industrial needs.

[0005] An improved lightweight thermoplastic core layer includes an interconnected panel unit, the interconnected panel unit includes a decorative panel, and a foamed core layer arranged on one side of the decorative panel. The elastic modulus of the interconnected panel unit is greater than 7000Mpa. The foamed core layer includes a thermoplastic matrix, recycled filler, wood fiber and / or metal particles, heat-resistant additives, fire-resistant additives, and coupling agents.

[0006] Furthermore, the weight percentage of the thermoplastic matrix is ​​40-50, the weight percentage of the recycled filler is 20-30, the weight percentage of the wood fiber and / or metal particles is 5-10, the weight percentage of the heat-resistant additive is 5-10, the weight percentage of the fire-resistant additive is 5-10, and the weight percentage of the coupling agent is 1-3.

[0007] Furthermore, the heat-resistant additive includes organic silane and thermosetting plastic, the weight percentage of the organic silane is 1-3, and the weight percentage of the thermosetting plastic is 5-10.

[0008] Furthermore, the heat-resistant additive includes one or a combination of organic silane, coupling agent, thermosetting resin, and ceramic additive.

[0009] Furthermore, the heat-resistant additive is one or a combination of silicon carbide, silicon dioxide and aluminum oxide.

[0010] Furthermore, the fire retardant additive is a metal hydroxide, such as any one or a combination of aluminum hydroxide, aluminum trihydroxide, magnesium hydroxide, molybdenum hydroxide, tin hydroxide, zinc borate, hunterite, brucite, and zinc hydroxystannate.

[0011] Furthermore, the recycled filler is at least any one or a combination of plastics, textiles, wood composite materials, and metal particles.

[0012] Compared with the prior art, the improved lightweight thermoplastic core layer provided by the present invention is interconnected with the decorative panel and the foam core layer through the interconnected panel unit. The elastic modulus of the interconnected panel unit is greater than 9000Mpa, wherein the elastic modulus is an indicator of the material's ability to resist deformation. The larger the elastic modulus, the smaller the deformation of the material when subjected to force, that is, the material has a higher rigidity. The interconnected panel unit makes the foam core layer 12 have a higher rigidity. And the foam core layer includes a thermoplastic matrix, recycled fillers, wood fibers and / or metal particles, heat-resistant additives, fire-resistant additives, and coupling agents. The recycled fillers are recycled post-consumer waste. The recycled fillers improve the rigidity and strength of the foam core layer, and the use of recycled fillers helps to reduce resource consumption, reduce environmental pollution, and promote sustainable development. Heat-resistant additives and fire-resistant additives are added to the foam core layer to reduce the combustion temperature of the foam core layer and the flame retardant performance. It can be seen from this that the improved lightweight thermoplastic core layer improves the elastic modulus of the foam core layer and reduces the risk of heating deformation of the plastic core layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic structural diagram of the improved lightweight thermoplastic core layer provided by the present invention. DETAILED DESCRIPTION

[0014] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0015] like Figure 1 As shown, it is a schematic diagram of the structure of the improved lightweight thermoplastic core layer provided by the present invention. The improved lightweight thermoplastic core layer includes an interconnected panel unit 10. The improved lightweight thermoplastic core layer also includes some other functional modules, such as assembly components, etc., which should be well known to those skilled in the art and will not be described in detail here.

[0016] The interconnected panel unit 10 includes a decorative panel 11 and a foam core layer 12 arranged on one side of the decorative panel 11. The elastic modulus of the interconnected panel unit 10 is greater than 7000Mpa, wherein the elastic modulus is an indicator of the material's ability to resist deformation. The larger the elastic modulus, the smaller the deformation of the material when subjected to force, that is, the material has a higher rigidity, that is, the interconnected panel unit 10 has a higher rigidity. During the processing, the elastic modulus of the interconnected panel unit 10 is preferably greater than 8000Mpa, preferably greater than 9000Mpa, to meet the strength requirements of the interconnected panel unit 10.

[0017] The decorative panel 11 is used to improve the aesthetics of the foam core layer 12 . A printed pattern or a coating may be provided on the decorative panel 11 . The decorative panel 11 is a prior art and will not be described in detail herein.

[0018] The foamed core layer 12 includes a thermoplastic matrix, recycled fillers, wood fibers and / or metal particles, heat-resistant additives, fire-resistant additives, and coupling agents.

[0019] The weight percentage (wt%) of the thermoplastic matrix is ​​40-50, wherein polypropylene (PP) and polyethylene terephthalate (PET) are common thermoplastics, which have good processing performance and cost-effectiveness. The temperatures of polypropylene (PP) and polyethylene terephthalate (PET) are 65°C and 67°C respectively, so polypropylene (PP) and polyethylene terephthalate (PET) can withstand thermal stress to a certain extent. The thermoplastic matrix is ​​a prior art and will not be described in detail here.

[0020] The recycled filler is any one or a combination of plastic, textile, wood composite material, and metal particles, wherein the plastic is polyethylene, polypropylene, or polyethylene terephthalate (PET), and the weight percentage (wt%) of the recycled filler is 20-30. The use of recycled polypropylene (PP) and polyethylene terephthalate (PET) can improve the sustainability of the material. Among them, plastic, textile, wood composite material, and metal particles are all recycled post-consumer waste. Plastic, textile, wood composite material, and metal particles improve the rigidity and strength of the foaming core layer, thereby increasing the integrity of the structure, and due to the inherent characteristics of plastic, textile, wood composite material, and metal particles, the thermal insulation performance can be improved. In addition, the use of the recycled filler helps to reduce the demand for natural resources, realize the environmental protection of materials and improve the sustainability, and the use of recycled fillers can reduce the density of the material and improve its potential as a lightweight material. The recycled filler is a prior art and will not be repeated here.

[0021] The weight percentage (wt%) of wood fiber and / or metal particles is 5-10. Both wood fiber and metal particles can be used as reinforcing materials to improve the mechanical properties of the composite material. The addition of wood fiber can improve the rigidity and strength of the foamed core layer 12, while metal particles can improve thermal conductivity and strength. Wood fiber and / or metal particles are prior art and will not be described in detail here.

[0022] The weight percentage (wt%) of the heat-resistant additive is 5-10. As a fire-resistant additive, the metal hydroxide can absorb heat and decompose during the combustion process to release water, thereby reducing the combustion temperature and improving the flame retardant performance of the material. The heat-resistant additive is a prior art and will not be described in detail here.

[0023] The weight percentage (wt%) of the coupling agent is 1-3. The coupling agent can improve the interface bonding between the thermoplastic polymer and the filler, and improve the overall performance of the composite material, including heat resistance, water resistance and processing performance. The coupling agent is a prior art and will not be described in detail here.

[0024] The heat-resistant additive includes organosilane and thermosetting plastic, the weight percentage (wt%) of organosilane is 1-3, and the weight percentage (wt%) of thermosetting plastic is 5-10. As a coupling agent, organosilane can improve the bonding between wood fiber and metal particles and polymer matrix, thereby improving the heat resistance and mechanical properties of the composite material. As a heat-resistant additive, thermosetting plastic can improve the heat resistance of the composite material. Thermosetting plastic has higher thermal stability and heat resistance than thermoplastic plastic. The heat-resistant additive is a prior art and will not be described in detail here.

[0025] Compared with the prior art, the improved lightweight thermoplastic core layer provided by the present invention is interconnected with the decorative panel 11 and the foam core layer 12 in the interconnected panel unit 10. The elastic modulus of the interconnected panel unit 10 is greater than 9000Mpa, wherein the elastic modulus is an indicator of the material's ability to resist deformation. The larger the elastic modulus, the smaller the deformation of the material when subjected to force, that is, the material has a higher rigidity. The interconnected panel unit 10 enables the foam core layer 12 to have a higher rigidity. In addition, the foam core layer 12 includes a thermoplastic matrix, recycled fillers, wood fibers and / or metal particles, heat-resistant additives, fire-resistant additives, and coupling agents. The recycled fillers are recycled post-consumer waste. The recycled fillers improve the rigidity and strength of the foam core layer, and the use of recycled fillers helps to reduce resource consumption, reduce environmental pollution, and promote sustainable development. Heat-resistant additives and fire-resistant additives are added to the foam core layer 12 to reduce the combustion temperature and flame retardant properties of the foam core layer 12. It can be seen from this that the improved lightweight thermoplastic core layer improves the elastic modulus of the foamed core layer and reduces the risk of deformation of the plastic core layer due to heating.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. An improved lightweight thermoplastic core layer, characterized in that: The improved lightweight thermoplastic core layer includes an interconnected panel unit, which includes a decorative panel and a foamed core layer arranged on one side of the decorative panel. The elastic modulus of the interconnected panel unit is >7000Mpa, and the foamed core layer includes a thermoplastic matrix, recycled filler, wood fiber and / or metal particles, heat-resistant additives, fire-resistant additives, and a coupling agent.

2. The improved lightweight thermoplastic core layer as claimed in claim 1, characterized in that: The weight percentage of the thermoplastic matrix is ​​40-50, the weight percentage of the recycled filler is 20-30, the weight percentage of the wood fiber and / or metal particles is 5-10, the weight percentage of the heat-resistant additive is 5-10, the weight percentage of the fire-resistant additive is 5-10, and the weight percentage of the coupling agent is 1-3.

3. The improved lightweight thermoplastic core layer as claimed in claim 1, characterized in that: The heat-resistant additive comprises organic silane and thermosetting plastic, the weight percentage of the organic silane is 1-3, and the weight percentage of the thermosetting plastic is 5-10.

4. The improved lightweight thermoplastic core layer as claimed in claim 1, characterized in that: The heat-resistant additive includes one or a combination of organic silane, coupling agent, thermosetting resin, and ceramic additive.

5. The improved lightweight thermoplastic core layer as claimed in claim 1, characterized in that: The heat-resistant additive is one or a combination of silicon carbide, silicon dioxide and aluminum oxide.

6. The improved lightweight thermoplastic core layer of claim 1, wherein: The fireproof additive is a metal hydroxide, such as any one or a combination of aluminum hydroxide, aluminum trihydroxide, magnesium hydroxide, molybdenum hydroxide, tin hydroxide, zinc borate, hunterite, brucite, and zinc hydroxystannate.

7. The improved lightweight thermoplastic core layer of claim 1, wherein: The recycled filler is at least any one or a combination of plastics, textiles, wood composite materials, and metal particles.

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