WO2021013268A1

WO2021013268A1 - Hollow composite board and application thereof

Info

Publication number: WO2021013268A1
Application number: PCT/CN2020/104800
Authority: WO
Inventors: 蒋晶磊
Original assignee: 蒋晶磊
Priority date: 2019-07-25
Filing date: 2020-07-27
Publication date: 2021-01-28

Abstract

A hollow composite board (1') and an application thereof. The composite board comprises a first partial board (30'), a second partial board (40'), a first layer (10'), and a second layer (20'). At least part of the first layer (10') is laminated to the second layer (20'). The first partial board (30') comprises one or two selected from the combination of at least part of the first layer (10') and at least part of the second layer (20'). The second partial board (40') comprises one or two selected from the combination of other at least part of the first layer (10') and other at least part of the second layer (20'). The first partial board (30') and the second partial board (40') are connected to each other and are surrounded to form a hollow cavity (100') by blow molding to form a hollow structure.

Description

Hollow composite panel and its application

Technical field

The invention relates to the field of plastic products, in particular to hollow composite panels made at least partly of plastics and their applications.

Background technique

Traditional panels are usually made of wood or metal, such as wooden panels or metal panels used in furniture. However, in order to ensure the load-bearing performance of furniture, the weight of this type of panel is generally designed to be relatively large. The finished furniture becomes clumsy and difficult to move as a whole. The surface of the furniture also needs special treatment to make the surface of the furniture smooth and corrosion-resistant.

At present, more and more panels are made of plastics. This is due to the superior performance of plastics. For example, the density of plastic materials is generally small, and the panels made are lighter, saving transportation costs, and most The physical and chemical properties of the plastic material itself are relatively stable, acid and alkali resistant and waterproof. In addition, plastic is also very malleable and can be easily molded into different shapes.

Although there are many advantages to using plastic to make panels, there are also some disadvantages. For furniture or toys, the surface layer is required to have scratch resistance, and it requires better rigidity and toughness to provide sufficient support and impact resistance. Plastic furniture or toys are usually made by plastic injection molding. The general plastic itself is not tough enough, easy to crack, and easy to be scratched. In order to meet the requirements of use, it is usually necessary to add some additional materials, such as scratch-resistant materials, Toughener to improve the performance of the plastic or attach a protective layer to the surface. Obviously, this method increases the cost of manufacturing. In order to save manufacturing costs, some manufacturers choose to increase the weight of the panel to obtain better impact resistance, which saves manufacturing costs, but makes the corresponding products awkward. There are also some ways to reduce the weight of the panel and obtain better support by changing the internal structure of the panel. For example, the panel is made into a hollow structure on the upper and lower layers, and then the lower layer is formed with multiple depressions to support the upper surface. The production materials are still relatively expensive.

Summary of the invention

In order to solve the above-mentioned technical problems of the current state of the art, a technical solution provided by the present invention is a blow molding multi-layer blow molding hollow composite board with good impact resistance, light weight, and stable and strong structure.

Another technical solution provided by the present invention is a compounding structure that can be made into a double-layer blow-molded hollow composite panel with good impact resistance, strong and stable structure, but light weight.

Another technical solution provided is a compounding structure that can produce a three-layer blow-molded hollow composite panel with good impact resistance, strong and stable structure.

Another technical solution adopted by the present invention is to provide a blow-molded hollow composite board, comprising an upper board and a lower board, a hollow structure is blow-molded between the upper board and the lower board, and is characterized in that: The upper board and the lower board each include an outer layer and an inner layer, and the lower board is recessed in the direction of the upper board to the inner layer of the lower board and the inner layer of the upper board are fused with each other to form a predetermined number of collision support structures.

Preferably, the upper board and the lower board each include an outer layer, a middle layer and an inner layer, and the lower board is recessed in the direction of the upper board until the inner layer of the lower board and the inner layer of the upper board are fused with each other to form a predetermined number The collision support structure is distributed in a preset manner.

In order to improve the strength of the edge structure of the hollow composite board, the outer edge of the upper layer board has an outer bending wall that is bent downward, and the outer edge of the lower layer board has an inner bending wall that is bent downward. The inner layer at the bottom of the wall and the inner layer at the bottom of the inner bending wall are integrated with each other.

In order to improve the structural strength of the hollow composite panel, the collision support structure may be a point structure or a strip structure.

Further preferably, at least one reinforcing rib is provided in the collision support structure.

Further preferably, the collision support structure is provided with two reinforcing ribs, and correspondingly, the collision support structure is provided with three contact peak points and arranged at intervals with the reinforcing ribs.

Another technical solution adopted by the present invention is that, for each layer of the raw material structure of the double-layer blow-molded hollow composite board, the outer layers of each of the upper and lower boards are made of high-density polyethylene, and the upper board and The inner layer of the lower board is all selected from the mixture of high-density polyethylene, metallocene polyethylene and calcium carbonate or all selected from the mixture of high-density polyethylene, metallocene polyethylene and glass fiber.

Preferably, the mass percentage of the metallocene polyethylene in the inner layer is 10-15%, the mass percentage of the calcium carbonate is 15-20%, and the rest is high-density polyethylene; or, the metallocene polyethylene in the inner layer The mass percentage is 10-15%, the glass fiber mass percentage is 15-25%, and the rest is high-density polyethylene.

Another technical solution adopted by the present invention is: according to the compounding structure of the double outer single inner three-layer blow-molded hollow composite board of each of the upper and lower boards, the outer layers of the upper and lower boards are both High-density polyethylene is used, and the middle layer of the upper board and the lower board is selected from a mixture of high-density polyethylene and calcium carbonate or a mixture of high-density polyethylene and glass fiber. The layers are all made of metallocene polyethylene.

As a preferred solution for the intermediate layer, the mass percentage of high-density polyethylene used in the intermediate layer is 70-85%, and the mass percentage of calcium carbonate is 15-30%.

As another preferred solution of the intermediate layer, the mass percentage of high-density polyethylene used in the intermediate layer is 60-85%, and the mass percentage of glass fiber is 15-40%.

Compared with the prior art, the present invention has the advantage that the multi-layer blow-molded hollow composite board only uses the upper and lower blow-molded hollow structure and constitutes a lightweight, firm and crash-resistant plate-shaped structure, wherein the lower board is upward The direction of the laminate is recessed to the inner layer of the lower laminate and the inner layer of the upper laminate to form a predetermined number of collision support structures distributed in a preset manner to improve the structural strength of the blow molding board. The outer layer can be made of high surface strength and resistance. For materials with strong scratch and oil resistance, the inner layer can be made of materials with low thermoplastic shrinkage ratio to provide frame support. If the middle layer of high toughness, elasticity and energy absorption materials is also used, it can be further Effectively alleviate the impact and drop damage to the panel, thereby further improving the overall structural strength of the blow molding board.

An advantage of the present invention is to provide a composite panel and its application, wherein the composite panel has the advantages of plastic lightness and better performance.

Another advantage of the present invention is to provide a composite panel and its application, wherein the surface layer of the composite panel can have better scratch resistance, and the entire composite panel can have better rigidity and toughness.

Another advantage of the present invention is to provide a composite panel and its application, wherein the composite panel can be specifically designed and manufactured based on the use requirements of different locations, such as the impact resistance requirements of a certain location of the composite panel Higher, this position can be made into a structure with higher impact resistance.

Another advantage of the present invention is to provide a composite panel and its application, wherein the composite panel can be specifically designed and manufactured based on the use requirements of different positions. For example, the same layer of the composite panel can be constructed in different positions. Designed according to requirements.

Another advantage of the present invention is to provide a composite panel and its application, wherein the composite panel can be specifically designed and manufactured based on the use requirements of different positions, for example, the same layer of the composite panel is made of materials in different positions Can be selected according to needs.

Another advantage of the present invention is to provide a composite panel and its application, wherein the composite panel is designed as a multilayer structure, through the multilayer structure to meet the various performance requirements for the panel, such as scratch resistance, impact resistance, etc. , Each layer meets at least one performance, so as to meet the requirements for the overall panel performance, thereby reducing the requirements for the production materials of the overall panel.

According to one aspect of the present invention, the present invention provides a composite panel including:

A first part of the panel;

A second part of the panel;

A first floor; and

A second layer, wherein at least a part of the first layer is overlapped with the second layer, and the first part of the panel includes one selected from a combination of at least part of the first layer and at least part of the second layer One or two types, the second partial panel includes one or two selected from a combination of other at least part of the first layer and other at least part of the second layer, wherein the first partial panel and the second Part of the panels are connected to each other at the edges and surrounded by blow molding to form a cavity to form a hollow structure.

According to at least one embodiment of the present invention, the first partial panel includes at least part of the first layer and at least part of the second layer, and the first layer part of the first layer panel is located outside, and the The scratch resistance of the first layer is stronger than that of the second layer.

According to at least one embodiment of the present invention, the first partial panel includes at least part of the first layer and at least part of the second layer, and the first layer part of the first partial panel is located outside, and the The supporting strength of the second layer part of a part of the panel is stronger than the first layer part of the first part of the panel.

According to at least one embodiment of the present invention, the second layer is completely clad and compounded by the first layer, the inner wall of the second layer surrounds the cavity to form the cavity, and the first partial panel integrally extends over the The second part of the panel.

According to at least one embodiment of the present invention, the composite panel further includes a third layer, wherein the second layer is located between the first layer and the third layer, and the first layer is located on the outside, so The third layer is located on the inner side, and the first partial panel includes one or more selected from combining at least part of the first layer, at least part of the second layer, and at least part of the third layer. The second partial panel includes one or more selected from a combination of at least part of the first layer, at least part of the second layer, and at least part of the third layer.

According to at least one embodiment of the present invention, the supporting strength of the third layer is stronger than that of the first layer and the second layer.

According to at least one embodiment of the present invention, the impact resistance of the second layer is stronger than that of the first layer and the third layer.

According to at least one embodiment of the present invention, the composite panel further includes a reinforcement layer, wherein the reinforcement layer is disposed at a corner position formed by the connection of the first partial panel and the second partial panel.

According to at least one embodiment of the present invention, the first partial panel includes at least part of the first layer, at least part of the second layer, and at least part of the third layer, and the second partial panel includes at least part of the The first layer, at least part of the second layer, and at least part of the third layer, wherein each layer of the first partial panel extends on the same layer corresponding to the second partial panel, and the third layer The inner wall of the surround forms the cavity.

According to at least one embodiment of the present invention, the first layer is made of high-density polyethylene, and the third layer is made of high-density polyethylene, and the third layer is made of high-density polyethylene plus calcium carbonate and high-density polyethylene plus glass fiber. One or two of them, and the second layer is made of one or two materials selected from the group consisting of metallocene polyethylene plus calcium carbonate and metallocene polyethylene plus glass fiber.

According to at least one embodiment of the present invention, the second partial panel of the composite panel extends toward the cavity to form at least one supporting structure, and the supporting structure is supported on the first partial panel.

According to another aspect of the present invention, the present invention provides a table top suitable for being supported on at least one table leg device to form a table, wherein the table top includes:

A first part of the panel;

A second part of the panel;

A first floor; and

A second layer, wherein the first layer is laminated to the second layer, and the first part of the panel includes one or two selected from a combination of at least part of the first layer and at least part of the second layer The second partial panel includes one or two selected from a combination of other at least part of the first layer and other at least part of the second layer, wherein the first partial panel and the second partial panel are at the edge They are connected to each other and are surrounded by blow molding to form a hollow structure, wherein the second partial panel of the table top board is adapted to be supported on the table leg device to form the table.

According to another aspect of the present invention, the present invention provides a table, wherein the table includes:

At least one table leg device; and

A table top, wherein the table top is supported on the table legs, and the table top includes:

A first part of the panel;

A second part of the panel;

A first floor; and

A second layer, wherein the first layer is laminated to the second layer, and the first part of the panel includes one or two selected from a combination of at least part of the first layer and at least part of the second layer The second partial panel includes one or two selected from a combination of other at least part of the first layer and other at least part of the second layer, wherein the first partial panel and the second partial panel are at the edge They are connected to each other and are surrounded by blow molding to form a cavity to form a hollow structure.

According to another aspect of the present invention, the present invention provides a method for manufacturing a hollow composite panel, which is characterized in that it includes the following steps:

(a) forming a second layer and a first layer laminated on the second layer; and

(b) A first partial panel and a second partial panel are surrounded by blow molding to form an edge connection, wherein a cavity is formed between the first partial panel and the second partial panel to form a hollow structure, wherein The first partial panel includes one or two selected from a combination of at least a part of the first layer and at least a part of the second layer, and the second partial panel includes a combination of at least a part of the first layer and others. At least one or two of the second layers.

According to at least one embodiment of the present invention, the manufacturing method further includes the steps:

(c) At least one contact peak is formed on the second partial panel extending into the cavity, and each contact peak is recessed toward the first partial panel to be connected to the first partial panel.

A predetermined number of supporting structures are simultaneously recessed toward the first partial panel in multiple parts of the second partial panel to form a predetermined number of supporting structures distributed in a predetermined manner and respectively form a recessed cavity.

Description of the drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment 1 of the present invention.

Fig. 2 is an enlarged schematic diagram of part A in Fig. 1.

Fig. 3 is an enlarged schematic diagram of part B in Fig. 2.

Fig. 4 is a schematic structural diagram of a second preferred embodiment of the present invention.

FIG. 5A is a schematic diagram of a composite panel according to a third preferred embodiment of the present invention.

Fig. 5B is a schematic cross-sectional view of the composite panel according to the third preferred embodiment of the present invention along the position A-A in Fig. 5.

6A is a schematic diagram of the composite panel according to the third preferred embodiment of the present invention from another perspective.

6B is an enlarged schematic diagram of the composite panel according to the third preferred embodiment of the present invention along the J position in FIG. 6A.

FIG. 6C is an enlarged schematic diagram of the composite panel according to the third preferred embodiment of the present invention taken along the position J in FIG. 6A from another perspective.

6D is an enlarged schematic diagram of the composite panel according to the third preferred embodiment of the present invention taken along the position J in FIG. 6A.

FIG. 7 is a schematic diagram of the manufacturing process of the composite panel according to the third preferred embodiment of the present invention.

FIG. 8 is a schematic diagram of a composite panel according to a fourth preferred embodiment of the present invention.

FIG. 9 is a schematic diagram of the manufacturing process of the composite panel according to the fourth embodiment of the present invention.

FIG. 10 is a schematic diagram of a composite panel according to a fifth preferred embodiment of the present invention.

FIG. 11 is a schematic diagram of the manufacturing process of the composite panel according to the fifth embodiment of the present invention.

FIG. 12 is a schematic diagram of a composite panel according to a sixth preferred embodiment of the present invention.

FIG. 13 is a schematic diagram of the manufacturing process of the composite panel according to the sixth preferred embodiment of the present invention.

FIG. 14 is a schematic diagram of a composite panel according to a seventh preferred embodiment of the present invention.

15 is a schematic diagram of the manufacturing process of the composite panel according to the seventh preferred embodiment of the present invention.

Figure 16 is a schematic diagram of a table according to a preferred embodiment of the present invention.

Detailed ways

The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention And to simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the above terms should not be understood as limiting the present invention.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in other embodiments, The number can be multiple, and the term "one" cannot be understood as a restriction on the number.

The present invention will be further described in detail below in conjunction with the embodiments of the drawings.

Example one:

As shown in Figures 1 to 3, according to the first preferred embodiment of the present invention, the multilayer blow-molded hollow composite panel of this embodiment includes an upper plate 1 and a lower plate 2, and the upper plate 1 and the lower plate 2 are between It forms a hollow structure during blow molding.

The upper board 1 and the lower board 2 of this embodiment are each a three-layer structure, that is, each includes an outer layer 3, a middle layer 5, and an inner layer 4, and the lower board 2 is upward, that is, in the direction of the upper board 1, and is recessed to The inner layer 4 of the lower board and the inner layer 4 of the upper board 1 are fused with each other to form a predetermined number of collision support structures 6 distributed in a preset manner.

The edge structure of the blow-molded hollow composite panel is as follows, as shown in Figure 3, the outer edge of the upper plate 1 has an outer bending wall 11 that is bent downward, and the outer edge of the lower plate 2 has an inner bend that is bent downward The wall 21, the inner layer 4 at the bottom of the outer bent wall 11 and the inner layer 4 at the bottom of the inner bent wall 21 are fused into one body.

In this embodiment, the collision support structure 6 is strip-shaped, and the collision support structure 6 is provided with two reinforcing ribs 61, as shown in Figures 1 and 2, correspondingly, the collision support structure 61 is provided with three There are two contact peak points 62 and are spaced apart from the reinforcing rib 61.

The raw material structure of the double-outer single-inner three-layer blow-molded hollow composite board is as follows: the outer layer 3 of the upper board 1 and the lower board 2 are both made of high-density polyethylene, and the middle layer 5 of the upper board 1 and the lower board 2 are selected from A mixture of high-density polyethylene and calcium carbonate or a mixture of high-density polyethylene and glass fiber is used, and the inner layer 4 of the upper board 1 and the lower board 2 are both made of metallocene polyethylene.

In this way, the outer layer 3 has the advantages of high surface strength, scratch resistance, and oil resistance. The inner layer 4 has a low thermoplastic shrinkage ratio and provides frame structure support. The middle layer 5 has certain elasticity and energy absorption, high toughness, and energy Effectively alleviate the damage to the panel caused by impact and drop.

According to the first preferred embodiment of the present invention, if the intermediate layer 5 uses high-density polyethylene and calcium carbonate, the mass percentage of the high-density polyethylene is 70-85%, and the mass percentage of calcium carbonate is 15-30%.

According to the first preferred embodiment of the present invention, if the intermediate layer 5 uses high-density polyethylene and glass fiber, the mass percentage of high-density polyethylene is 60-85%, and the mass percentage of glass fiber is 15-40%.

After the upper board 1 and the lower board 2 of the multilayer blow-molded hollow composite board of this embodiment adopt the above-mentioned double-outer single-inner three-layer structure, when the outer layer 3 is strongly impacted and dropped, the inner layer 4 can even break actively. Dissolve energy, and because the material of the middle layer 5 has resilience tension, the inner layer 4 can still be reset to ensure the integrity and function of the entire panel. Therefore, the hollow composite board has the advantages of high surface strength, high flatness, overall impact resistance, deformation resistance, more stable structure, higher performance and longer service life.

The multi-layer blow-molded hollow composite panel can be applied to many different occasions, for example, it can be applied to tables and chairs, as table panels, chair seats, back panels, etc., and can also be applied to other products whose panels are easy to break It can also be applied to building materials such as wall panels, wall panels, door panels, fence panels, outdoor floors, insulation panels, and partition panels.

According to the first preferred embodiment of the present invention, the parameters of the high-density polyethylene used in the outer layer 3 are as follows: melting grease: 1.5 g/10 min, bending strength: 900 MPa, Shore D69.

According to the first preferred embodiment of the present invention, the parameters of the high-density polyethylene used in the intermediate layer 5 are as follows: melt fat: 0.35 g/10 min, bending strength: 1050 MPa, Shore D63.

According to the first preferred embodiment of the present invention, the parameters of the metallocene polyethylene used in the inner layer 4 are as follows:

Melting fat: 2.0g/10min;

Elongation at break: longitudinal 420%, transverse 830%;

Tensile strength at break: longitudinal 62MPa, transverse 25MPa;

Impact strength of falling dart <48g;

Ekmandorf tearing strength: 21°C in longitudinal direction, 430°C in transverse direction.

In addition, those familiar with the art can understand that, as a simplified application example, the outer layer, the middle layer, and the inner layer can be made of the same material, or different grades and grades of the same material, such as uniform use of high-density polyethylene. In addition, the outer layer can be made of brand-new materials with higher hardness and bright colors, the middle layer can be used as a mixed layer, and the inner layer can use recycled materials and a certain proportion of structural filling materials. This can achieve cost savings and quick color change.

Embodiment two:

As shown in FIG. 4, according to the second preferred embodiment of the present invention, the upper plate 1 and the lower plate 2 of this embodiment are each a double-layer structure, that is, both include an outer layer 3 and an inner layer 4, and the lower layer The board 2 is recessed in the direction of the upper board 1 until the inner layer of the lower board and the inner layer of the upper board 1 merge with each other to form a predetermined number of collision support structures 6 distributed in a preset manner.

The raw material structure of the double-layer blow-molded hollow composite board is as follows: the outer layer 3 of the upper board 1 and the lower board 2 are made of high-density polyethylene, and the inner layer 4 of the upper board 1 and the lower board 2 are all selected from high-density polyethylene , A mixture of metallocene polyethylene and calcium carbonate or a mixture of high-density polyethylene, metallocene polyethylene and glass fiber.

According to the second preferred embodiment of the present invention, the mass percentage of the metallocene polyethylene in the inner layer is 10-15%, the mass percentage of calcium carbonate is 15-20%, and the rest is high-density polyethylene; or, the metallocene in the inner layer The mass percentage of polyethylene is 10-15%, the mass percentage of glass fiber is 15-25%, and the rest is high-density polyethylene.

In addition, the parameter performance of the high-density polyethylene and metallocene polyethylene used in this embodiment can refer to Embodiment 1, and the description will not be expanded here.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, various modifications or improvements can be made to the present invention, for example, the upper plate The outer layer, the middle layer and the inner layer, and the outer layer, the middle layer and the inner layer of the lower board can also adopt more than one layer structure, and these are all considered to be within the protection scope of the present invention.

Referring to Figures 5A to 7, a composite panel 1'and its manufacturing process according to a third preferred embodiment of the present invention are illustrated. The composite panel 1'can be applied but is not limited to toys, Furniture, decoration and other fields. The composite panel 1'can have excellent properties, such as scratch resistance, impact resistance, etc., to meet a variety of use needs, but it does not need to pass expensive plastic materials that have good scratch resistance and excellent impact resistance. Made. The composite panel 1'can meet higher quality requirements with lower manufacturing costs.

It is worth mentioning that when the application scenarios are different, the performance requirements of the composite panel 1'are different. When the composite panel 1'is used in the toy field, the impact resistance performance of the composite panel 1'may be more demanding. High to meet the high frequency of children beating toys. When the composite panel 1'is applied to the furniture field, there may be higher requirements for the scratch resistance of the composite panel 1'. The composite panel 1'provided in this embodiment can meet different usage requirements, and can be adapted to different usage requirements by making simple improvements in the manufacturing process.

Further, the composite panel 1'includes a first partial panel 30' and a second partial panel 40', wherein the first partial panel 30' and the second partial panel 40' are integrally connected at the periphery, as shown in FIG. 5A and 5B, and at least part of the first partial panel 30' and at least part of the second partial panel 40' maintain a preset distance to form at least one cavity 100', thereby forming a hollow One-piece structure.

Further, the first partial panel 30' may be a single-layer, double-layer, three-layer, or multi-layer structure, and the second partial panel 40' may be a single-layer, double-layer, three-layer, or It is a more layered structure. At least part of the first partial panel 30' extends integrally with the second partial panel 40'.

Since the first partial panel 30' may have a double-layer or more layer structure, the different layers forming the first layer 10' may be made of different materials, so that the first partial panel 30' Each location of has different properties.

According to the third preferred embodiment of the present invention, the first partial panel 30' and the second partial panel 40' of the composite panel 1'include a first layer 10' and a second layer 20', wherein The first layer 10' and the second layer 20' overlap to form the first partial panel 30' or the second partial panel 40' of the composite panel 1'. The first partial panel 30' of the composite panel 1'or the first layer 10' of the second partial panel 40' may be in contact with a user during use, and the first part of the composite panel 1' The second layer 20' of the panel 30' or the second partial panel 40' is located inside the first layer 10', and it is difficult for users to see the second layer 20' outside the composite panel 1' .

It is understandable that "layer" here does not mean that the first layer 10' or the second layer 20' has a clear boundary line, and the first layer 10' and the second layer 20' It can be made of the same material, and the boundary of the connection between the first layer 10' and the second layer 20' can be blurred, such as a fused, bonded, or laminated integrated composite structure. The first layer 10' and the second layer 20' may also be made of different materials. Further, the first partial panel 30' includes at least part of the first layer 10' and the at least part of the second layer 20', wherein at least part of the first layer 10' and the second layer 20' It can be overlapped and compounded to form the first partial panel 30'.

The part of the first layer 10' forming the first partial panel 30' may be made of a material with high surface strength, scratch resistance and oil stain resistance.

The portion of the second layer 20' forming the first partial panel 30' may be made of an impact-resistant and deformation-resistant material. During use, the second layer 20' part forming the first partial panel 30' can be supported on the first layer 10' part forming the first partial panel 30', so that the first partial panel 30' has good impact resistance.

It is worth noting that, since the second layer 20' forming the first partial panel 30' is located on the inner side, it is difficult for users to observe from the outside, and it is also difficult to scratch with external objects. Therefore, it is difficult to form the first part The portion of the second layer 20' of the panel 30' may not have excessively high requirements for surface flatness and scratch resistance. That is, the scratch resistance of the second layer 20' part forming the first partial panel 30' may be weaker than the first layer 10' part forming the first partial panel 30'.

Further, since the second layer 20' part forming the first partial panel 30' does not require too much aesthetic requirements, the second layer 20' part forming the first partial panel 30' It can be unsightly, the color can be uneven, or mixed with various colors to reduce the cost of production. The thickness of each of the second layer 10' part and the second layer 20' part forming the first partial panel 30' and the second partial panel 40' can be set differently according to the use occasion and needs.

The second partial panel 40' may be a single-layer, double-layer, three-layer, or multi-layer structure, and the different layers forming the second partial panel 40' may be made of different materials, or Can be made of the same material.

When the second partial panel 40' is a single layer, at least part of the second layer 20' may form the second partial panel 40'. That is, the second partial panel 40' may not have the first layer 10' part. The portion of the second layer 20' forming the second partial panel 40' integrally extends to the portion of the second layer 20' forming the second partial panel 40'.

When the second partial panel 40' is a double layer, at least part of the second layer 20' and at least part of the first layer 10' overlap each other to form the second partial panel 40'. The portion of the second layer 20' forming the second partial panel 40' may extend integrally with the portion of the second layer 20' forming the first partial panel 30'. The portion of the first layer 10' forming the second partial panel 40' may extend integrally with the portion of the first layer 10' forming the first partial panel 30'. At this time, the second layer 20' may surround the cavity 100'. The first layer 10' is located outside the second layer 20'.

It can be understood that the second layer 20' and the first layer 10' do not necessarily overlap each other everywhere. It may be that a part of the second layer 20' and the first layer 10' overlap each other. In other words, not every position of the second layer 20' needs to be provided with the first layer 10'.

Furthermore, in this embodiment, as shown in FIG. 5B, the composite panel 1'includes a third layer 50', wherein the second layer 20' is located between the first layer 10' and the first layer 10'. Between 50' on three floors. The first layer 10' and the third layer 50' become outer layers, and their materials may be the same or different, and the first layer 10' and the third layer 50' are the same as the inner layer. The second layer 20' is different.

The second layer 20' can play a role of buffering or energy absorption. When the first layer 10' of the first partial panel 30' of the composite panel 1'is impacted by an external force, the second layer 20' can absorb the external impact force. Or when the composite panel 1'falls to the ground, the second layer 20' can play a buffering effect.

The first partial panel 30' of the composite panel 1'may include at least a part of the third layer 50', and the second partial panel 40' may include at least a part of the third layer 50', located at the The part of the third layer 50' of a part of the panel 30' and the part of the third layer 50' of the second part of the panel 40' may be discontinuous or continuous.

In this embodiment, the first layer 10', the second layer 20', and the third layer 50' at each position are integrally formed. In other words, the cross-section of the first partial panel 30' or the second partial panel 40' of the composite panel 1'has three layers.

Further, the second partial panel 40' can extend toward the cavity 100' to form at least one supporting structure 41', so that at least a part of the second partial panel 40' can face the first partial panel 30' The protrusions support the first partial panel 30' to facilitate the structural strength of the entire composite panel 1'.

It is understandable that the first layer 10' part, the second layer 20' part and the third layer 50' part of the second partial panel 40' can simultaneously bulge inward to form the support The structure 41', such as a collision support structure, forms a recessed cavity 400' on the outer surface of the second partial panel 40', as shown in FIGS. 5A to 6D. It may also be that one or more layers of the second partial panel 40' protrude inward to form the support structure 41', for example, the third layer 50 of the second partial panel 40' The supporting structure 41' is formed partially protruding inward, and is at least partially separated from the second layer 20' of the second partial panel 40'.

In this embodiment, multiple parts of each layer of the second partial panel 40' are simultaneously recessed into the cavity to form a predetermined number of the supporting structures 41' distributed in a preset manner. Viewed from the outside of the second partial panel 40' of the composite panel 1', a plurality of recessed cavities 400' are formed, as shown in Figs. 6A and 6B.

The composite panel 1'may be formed with a plurality of the supporting structures 41', and the supporting structures 41' may be arranged at intervals in a predetermined manner, and may be arranged at intervals along the longitudinal or transverse directions, or may be as the present invention. The third embodiment is arranged along a crisscross interval (as shown in FIG. 6B). The supporting structure 41' can support the first partial panel 30' of the composite panel 1'. The supporting structure 41' may be designed to have the same shape and structure, or may be designed to be different. The supporting structures 41' are arranged in a preset order, and a preset distance is maintained between adjacent supporting structures 41'.

Preferably, in this embodiment, the supporting structure 41' may further be provided with at least one reinforcing rib 42', wherein the reinforcing rib 42' is located at the position of the recessed cavity 400' and is integrally extended to the support Structure 41'. The reinforcing rib 42' may be a U-shaped wavy shape that at least part of the supporting structure 41' protrudes outward.

According to the third implementation of the present invention, each of the supporting structures 41' of the second partial panel 40', as shown in FIGS. 6A to 6D, is a three-peak shape recessed toward the first partial panel 30' to form a relatively W-shape A recessed cavity 400', wherein the recessed cavity 400' is oblong in shape, has two arc ends, and its peripheral edge extends upward and inward obliquely to form the supporting structure with the second partial panel 40' 41'. Each supporting structure 41' is provided with at least one reinforcing rib 42'. According to the present embodiment, a pair of the reinforcing ribs 42' are provided, which are evenly arranged across the bottom of the recessed cavity 400' in the transverse direction, that is, the The opposite top of the support structure 41'. It is worth emphasizing that the wave-shaped structure is an ideal reinforcement structure, so the wave-shaped pair of stiffeners 42' form the three-peak wave support structure 41', which greatly strengthens the impact resistance of the second part of the panel 40' Sex and robustness.

Further, the second partial panel 40' of the present invention is formed with at least one contact peak 43', and the contact peak 43' is located higher than the surrounding part and close to the first partial panel 30'. In detail, the second partial panel 40' extends toward the cavity, that is, toward the first partial panel 30', to form the contact peak 43'. Wherein, the second partial panel 40' is recessed toward the first partial panel 30' to the third layer 50' of the second partial panel 40' and the third layer 50' of the first partial panel 30' merge with each other to form the contact peak 43 ', the first partial panel 30' is supported at the position of the contact peak 43'. At least part of the second partial panel 40' may undulate and extend to form the contact peak 43'. The number of the contact peak points 43' may be multiple and keep an interval. Each of the reinforcing ribs 42' and each of the contact peak points 43' in the position of the recessed cavity 400' are arranged in a concave-convex staggered arrangement, as shown in FIG. 6B, to form the supporting structure 41'.

In other words, the contact peak point 43' is located at the supporting structure 41'. At least part of the supporting structure 41' protrudes outward to form the reinforcing rib 42', thereby forming two or more spaced contact peak points 43'.

According to the third implementation of the present invention, the three peak points of the support structure 41' become the three contact peak points 43', as shown in FIGS. 6A to 6D, at the position of each support structure 41', the second The third layer 50' of the partial panel 40' is just recessed to the third layer 50' of the first partial panel 30', and is fused with the third layer 50' of the first partial panel 30' during blow molding. One. Thereby, the second partial panel 40' is combined with the first partial panel 30' by all the contact peak points 43' of the supporting structure 41' to form the hollow composite panel of the present invention. Wherein, the three-peaked wave support structure 41' formed by the wave-shaped reinforcing ribs 42' of the second partial panel 40' is also formed by the combination of the contact peaks 43' and the first partial panel 30' In addition to the reinforced support and structure of the first partial panel 30', the impact and force on the first partial panel 30' are directly and evenly transmitted to the second partial panel 40' to support the force, while the first partial panel 30' And the cavity 100' in the second part of the panel 40' is formed to provide cushioning and shock-absorbing effects. As shown in FIG. 6A, the predetermined number of supporting structures 41' are preferably staggered and evenly distributed in the vertical and horizontal directions, with equal distances apart; in this way, even if the composite panel of the present invention is a hollow structure, the material cost and weight are greatly reduced. However, by this, the hollow composite panel 1'is formed into an impact-resistant and strong structure with crosswise and crosswise reinforcement. Moreover, through the contact peak points 43' of each support structure 41', the multiple evenly distributed joints of the first partial panel 30' and the second partial panel 40' are fused with each other, so that the first partial panel 30 'It is more integrated with the second partial panel 40', and the impact and force applied to the first partial panel 30' are directly and evenly transmitted to the second partial panel 40' and the force is dispersed and supported, and then directly transmitted to A supporting device supported on the hollow composite panel 1', such as a leg device in contact with the ground.

The preparation method of the composite panel 1'may be to prepare the second layer 20' first, and then stack the third layer 50' and the first layer 10' to the second layer 20 layer by layer. ', it can also be prepared layer by layer by spraying.

According to the third preferred embodiment of the present invention, please refer to FIG. 7. The preparation method of the composite panel 1'is prepared by blow molding. The specific preparation process is as follows:

First, the first layer 10', the third layer 50', and the second layer 20' of the first layer 10', the third layer 50', and the second layer 20' used to prepare the composite panel 1' Are respectively transported to a handpiece 201' of a preparation equipment 2', wherein the handpiece 201' has a plurality of discharging channels 200', wherein the discharging channels 200' may be annular channels arranged in concentric circles, such as Speaking of the first discharging channel 200A', the second discharging channel 200B', and the third discharging channel 200C', the inner diameters of them increase in sequence. The first layer of raw material after hot melting is extruded from the first outlet channel 200A', the second layer of raw material after hot melting is extruded from the second outlet channel 200B', and the third after hot melt The layer material is extruded from the third discharge channel 200C'.

Under a certain temperature and pressure, the first layer of raw materials, the second layer of raw materials, and the third layer of raw materials can be extruded at the same time, and after contacting each other, they will be fused together to obtain the first layer 10', the The second layer 20' and the third layer 50'.

A molding die 202' is provided below the die 201', wherein the molding die 202' (Blow Molding) includes a left mold 2021' and a right mold 2022'. The first layer of raw material , The third layer of raw materials and the second layer of raw materials enter the forming mold 202', and after the left mold 2021' is closed to the right mold 2022', blow air inward to make the first The layer 10', the second layer 20', and the third layer 50' are laminated and adhered to the left mold 2021' and the right mold 2022' in order to form the hollow composite panel 1 'And the cavity 100' in it.

The right mold 2022' and the left mold 2021' correspond to the first partial panel 30' and the second partial panel 40', respectively. The right mold 2022' or the left mold 2021' may have a predetermined number of evenly distributed protrusion structures to form the second partial panel 40' with each supporting structure 41'.

The composite panel 1'is obtained through the above manufacturing steps. Since the supporting strength of the first partial panel 30' of the composite panel 1'can be satisfied by the third layer 50' of the first partial panel 30', Therefore, the requirements for the structural strength of the first layer 10' or the second layer 20' can be reduced. Similarly, since the scratch resistance of the composite panel 1'can be satisfied by the first layer 10' of the outer surface portion, the third layer 50' and the third layer 50' of the first partial panel 30' The scratch resistance requirement of the second layer 20' can be reduced. Similarly, since the impact resistance of the composite panel 1'can be satisfied by the second layer 20' of the first partial panel 30', the first layer 10' of the composite panel 1' And the impact resistance requirements of the third layer 50' can be reduced. In addition, the thickness of the three layers of the first layer 10', the second layer 20' and the third layer 50' can be made into different thicknesses as required.

For the entire composite panel 1', there is no need to rely on a relatively perfect material that can meet multiple needs to meet the use needs. The above-mentioned multi-layer arrangement can be used with simple and relatively inexpensive materials. Can achieve the purpose.

Furthermore, when designers need to design or improve certain attributes of the composite panel 1', they do not need to be restricted by other attributes. In traditional wooden, plastic, or blow-molded single-layer panels, when considering the improvement of the strength of the panel material, it is also necessary to consider whether the improvement will affect other properties, such as scratch resistance. In the composite panel 1'provided in this embodiment, when the impact resistance of the composite panel 1'needs to be improved, the designer focuses on improving the material and structure of the third layer 50'. There is no need to consider the scratch resistance of the third layer 50', because at this time the scratch resistance is mainly embodied by the first layer 10'.

Further, the above-mentioned preparation method is only an example. The first layer 10', the third layer 50' and the second layer 20' of the composite panel 1'may all be made of different plastics. Into. The first layer 10' may be set thicker than the third layer 50'. The composite panel 1'may also include non-plastic materials. For example, the first layer 10' and the second layer 20' may be plastic materials, and the third layer 50' may be non-plastic materials. The second layer 20' does not necessarily have a buffering effect, and can also act as a media when the first layer 10' and the third layer 50' cannot adhere to each other. In other words, even if the materials are not fused, as long as the second layer 20' can be fused with the first layer 10' and the third layer 50, it becomes the first layer 10' With the medium of the third layer 50, the three layers are fused together.

Referring to Fig. 8, the composite panel 1'according to a fourth embodiment of the present invention is illustrated. In this embodiment, the first partial panel 30' of the composite panel 1'is implemented as three layers, and the second partial panel 40' is implemented as two layers.

The first partial panel 30' may include at least part of the first layer 10', at least part of the second layer 20', and at least part of the third layer 50'. The second partial panel 40' may include at least part of the third layer 50' and at least part of the second layer 20'. Of course, the second partial panel 40' can also be implemented to include at least a part of the first layer 10' and at least a part of the third layer 50', or at least a part of the first layer 10' and at least Part of the second layer 20'.

Since the second partial panel 40' is difficult to be observed when in use, the second partial panel 40' can focus on the support strength to provide a better support for the first partial panel 30'.

Referring to FIG. 9, a manufacturing method of the composite panel 1'corresponding to the fourth embodiment is illustrated.

First, the first layer 10', the second layer 20', and the third layer 50' of the first layer 10', the second layer 20', and the third layer 50' used to prepare the composite panel 1' Are respectively transported to the handpiece 201' of the preparation equipment 2', wherein the handpiece 201' has a plurality of discharging channels 200', wherein the discharging channel 200' may be an annular channel arranged in concentric circles For example, the first discharging channel 200A', the second discharging channel 200B', and the third discharging channel 200C', and their inner diameters increase sequentially. The first layer of raw material after hot melting is extruded from the first outlet channel 200A', the second layer of raw material after hot melting is extruded from the second outlet channel 200B', and the third layer after hot melting The layer material is extruded from the third discharge channel 200C'.

The first discharge channel 200A' of the handpiece 201' is implemented in an arc shape, for example, at least part of the original annular channel is sealed, so that the panel 30' corresponding to the first part can include the The first layer 10' part, and the panel 40' corresponding to the second part does not include the first layer 10' part.

The forming mold 202' is provided under the head 201', wherein the forming mold 202' includes the left mold 2021' and the right mold 2022'. When the first layer of raw materials are fused with each other, When the second layer of raw materials and the third layer of raw materials move down a certain distance, the left mold 2021' and the right mold 2022' of the forming mold 202' move toward each other from both sides of the raw materials to move closer to each other, and the raw materials enter The forming mold 202'.

After the left mold 2021' is closed to the right mold 2022', blow air inward to make the first layer 10' part, the third layer 50' part and the second layer 20 on one side 'Partially laminated and attached to the left mold 2021' to obtain the first partial panel 30', and the third layer 50' part and the second layer 20' part on the other side are sequentially laminated It is attached to the right mold 2022' to obtain the second partial panel 40' to form the hollow composite panel 1'and the cavity 100' therein.

The left mold 2021' may have a predetermined number of evenly distributed protrusion structures to form the second partial panel 40' with each supporting structure 41'. The support structure 41' has a certain depth. For example, the second layer 20' forming the support structure 41' just touches the second layer 20' forming the first partial panel 30', On the one hand, the second partial panel 40' can play a supporting role, and on the other hand, it prevents excessive adhesion between the second partial panel 40' and the first partial panel 30', so as to reduce the possibility of heat dissipation problems during the manufacturing process. The probability of causing uneven shrinkage of the first partial panel 30'.

Referring to Fig. 10, the composite panel 1'according to a fifth embodiment of the present invention is illustrated. In this embodiment, the junction of the first partial panel 30' and the second partial panel 40' of the composite panel 1'forms at least a corner 60', wherein the corner 60' includes at least part of the The first layer 10', at least part of the second layer 20', at least part of the third layer 50', and a reinforcement layer 70', wherein the reinforcement layer 70' is superimposed on the corners 60' Between the second layer 20' part and the third layer 50' part to enhance the impact resistance of this position.

In other words, the first partial panel 30' and the second partial panel 40' of the composite panel 1'mainly have a three-layer structure, and the first partial panel 30' and the second partial panel 40' of the composite panel 1' The junction of the second part of the panel 40' is a four-layer structure to strengthen the structural strength of this position.

The material of the reinforcing layer 70' and the material of the second layer 20' may be different or the same.

Referring to FIG. 11, a manufacturing method of the composite panel 1'according to the fifth embodiment described above is illustrated. The head 201' includes the first discharge channel 200A', the second discharge channel 200B', the third discharge channel 200C', and a fourth discharge channel 200D', which are used for making The raw material of the first layer 10' is extruded through the first discharge channel 200A', and the raw material used to make the second layer 20' is extruded through the second discharge channel 200B'. The raw materials used to make the third layer 50' pass through the third discharge channel 200C' for being extruded, and the raw materials used to make the reinforcement layer 70' pass through the fourth discharge channel 200D' for being extruded Out.

The four discharging channels 200' of the die head 201' overlap in time for discharging, so that the raw materials extruded by the adjacent discharging channels 200' contact each other and merge into one body. The first discharging channel 200A', the second discharging channel 200B', and the third discharging channel 200C' are arranged in concentric circles with gradually decreasing inner diameters from outside to inside. The fourth discharge channel 200' is arranged between the third discharge channel 200C' and the second discharge channel 200B' and is an arc-shaped channel.

The die 201' extrudes the raw materials of each layer to produce a hollow embryo.

When the left mold 2021' and the right mold 2022' of the forming mold 202' are closed on the embryo body from both sides, and then inflated toward the embryo body so that the embryo body is attached to the embryo body respectively The left mold 2021' and the right mold 2022' are formed.

After cooling and drawing, the composite panel 1'can be obtained, wherein the reinforcing layer 70' is disposed at the corner 60'.

Referring to FIG. 12, the composite panel 1'according to a sixth embodiment of the present invention is illustrated.

For the composite panel 1', the thickness of each position of the first layer 10', the second layer 20' or the third layer 50' can be the same, or it can be designed according to requirements Into different. In this embodiment, the thickness of the third layer 50' at the corner 60' is greater than other positions, so that the corner 60' has better impact resistance.

As described with reference to FIG. 13, a manufacturing method corresponding to the composite panel 1'according to the sixth embodiment described above is illustrated, the first discharge channel 200A', the second discharge channel 200B', and The third discharge channel 200C' is an annular channel respectively. The cross-sectional size of the first discharging channel 200A' and the second discharging channel 200B' is the same everywhere to obtain the first layer 10' and the second layer 20' with the same thickness.

At least part of the inner diameter of the third discharge channel 200C' is enlarged, so that the thickness of the third layer 50' formed at this position becomes larger.

After the molding die 202' is closed, the position where the inner diameter of the third discharge channel 200C' increases corresponds to the connection between the first partial panel 30' and the second partial panel 40', that is, The position of the corner 60' is such that the thickness of the third layer 50' corresponding to the corner 60' is increased relative to other positions.

In this way, the structural strength of the corner 60' of the composite panel 1'can be enhanced.

Referring to Figures 14 and 15, the composite panel 1'and the manufacturing process according to a seventh embodiment of the present invention are illustrated.

The materials for the different layers of the composite panel 1'can be different or the same. For the same layer of the composite panel 1', the materials may be the same or different.

In this embodiment, taking the third layer 50' made of different materials as an example for description, the handpiece 201' includes the first discharge channel 200A', the second discharge channel 200B', and The third discharge channel 200C', wherein the first discharge channel 200A' is used to prepare the first layer 10', and the second discharge channel 200B' is used to prepare the second layer 20' The third discharge channel 200C' is used to prepare the third layer 50'.

The first discharging channel 200A', the second discharging channel 200B', and the third discharging channel 200C' are respectively arranged in a concentric ring shape, and the inner diameters are sequentially reduced.

The third discharging channel 200C' includes a first part of the third discharging channel 200C ₁ 'and a second part of the third discharging channel 200C ₂ ', wherein the first part of the third discharging channel 200C ₁ ' and the The second part of the third discharge channel 200C ₂ ′ is isolated from each other. When the raw materials in the first part of the third discharge channel 200C ₁ ′, the materials in the second part of the third discharge channel 200C ₂ ′, the materials in the first discharge channel 200A′, and the first After the raw materials in the three discharge channels 200C' are simultaneously extruded from the head 201', the raw materials corresponding to the adjacent layers are bonded to each other while the raw materials located in the same layer are bonded to each other.

In the above manner, the same layer of the composite panel 1'can be prepared from different raw materials. It is worth noting that if the adjacent raw material layers cannot be joined to each other, an intermediary layer can be added between the two to play the role of joining.

Referring to Fig. 16 while referring to Figs. 5A to 6D, a table 1000' according to a preferred embodiment of the present invention is illustrated. The table 1000' includes a table top 1001' and at least one table leg device 1002', wherein the table top 1001' is supported by the table leg device 1002', wherein the number of the table leg devices 1002' may be Two or more.

At least part of the first partial panel 30' and at least part of the second partial panel 40' of the desktop board 1001 are arranged face to face and may be parallel to each other.

The desktop board 1001' can be prepared from the composite panel 1', and the composite panel 1'can be prepared into various shapes such as a circle, a rectangle, etc., to meet different requirements.

Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been completely and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may have any deformation or modification.

Claims

A hollow composite panel, characterized in that it includes:

A first part of the panel;

A second part of the panel;

A first floor; and

A second layer, wherein at least part of the first layer and the second layer overlap each other to form the first partial panel and the second partial panel, and the first partial panel includes a combination of at least part of the One or both of the first layer and at least part of the second layer, and the second part of the panel includes one selected from combining other at least part of the first layer and other at least part of the second layer One or two, wherein the first partial panel and the second partial panel are connected to each other at an edge position, and at least part of the first partial panel and at least part of the second partial panel maintain a predetermined distance to form At least one cavity is surrounded to form a hollow one-piece structure, wherein the second part of the panel extends into the cavity to form at least one contact peak point, each of the contact peak points is recessed toward the first part of the panel to meet the The first part of the panel is connected.
The hollow composite panel according to claim 1, wherein a plurality of parts of the second partial panel are simultaneously recessed toward the first partial panel to form a predetermined number of supporting structures arranged in a preset manner, and respectively form a recessed cavity.
The hollow composite panel according to claim 2, wherein each of the supporting structures is provided with at least one reinforcing rib, and the reinforcing rib is located in the recessed cavity and extends integrally with the supporting structure.
The hollow composite panel according to claim 3, wherein the reinforcing ribs are at least part of the supporting structure protruding toward the first partial panel to form a U-shaped wavy structure, and the reinforcing ribs span the The bottom of the recessed cavity forms the contact peak point oppositely.
The hollow composite panel according to claim 4, wherein each of the supporting structures is provided with a pair of the reinforcing ribs and uniformly forms three contact peak points, wherein the contact peak points are combined with the first partial panel.
The hollow composite panel according to claim 1, wherein the first layer of the first partial panel is located on the outer side, the scratch resistance of the first layer is stronger than that of the second layer, and the first partial panel The supporting strength of the second layer portion is stronger than that of the first layer portion of the first partial panel, wherein the second layer is completely covered by the first layer, and the inner wall of the second layer is surrounded to form The cavity.
The hollow composite panel according to claim 5, wherein the first layer of the first partial panel is located on the outside, the scratch resistance of the first layer is stronger than that of the second layer, and the first partial panel The supporting strength of the second layer portion is stronger than that of the first layer portion of the first partial panel, wherein the second layer is completely covered by the first layer, and the inner wall of the second layer is surrounded to form The cavity.
The hollow composite panel according to any one of claims 1 to 5, wherein the hollow composite panel comprises a third layer, wherein the third layer is located between the first layer and the second layer, and the The first layer, the second layer, and the third layer together form the first partial panel and the second partial panel, wherein the first partial panel includes a combination of at least part of the first layer, at least part of the One or more of the second layer, at least part of the third layer, and the second part of the panel includes a combination of other at least part of the first layer, other at least part of the second layer, and others At least part of one or more of the third layers.
The hollow composite panel according to claim 7, wherein the hollow composite panel comprises a third layer, wherein the third layer is located between the first layer and the second layer, and the first layer, The second layer and the third layer together form the first partial panel and the second partial panel, wherein the first partial panel includes a combination selected from at least part of the first layer and at least part of the second Layer, one or more of at least part of the third layer, the second part of the panel includes a combination of other at least part of the first layer, other at least part of the second layer, and other at least part of the One or more of the third layer.
The hollow composite panel according to claim 9, wherein the first layer of the first layer panel is located on the outside, and the scratch resistance of the first layer is stronger than that of the second layer and the third layer , The supporting strength of one of the second layer and the third layer of the first partial panel is stronger than the first layer of the first partial panel, wherein the second layer and the third layer The layer is completely covered by the first layer, and the inner wall of the third layer surrounds the cavity to form the cavity.
The hollow composite panel according to claim 9, wherein the second part of the panel faces each of the recessed cavities and extends toward the first part of the panel to form the contact peak point, wherein the second part of the panel faces The first partial panel is recessed into the third layer part of the second partial panel and the third layer part of the first partial panel merges with each other to form the contact peak point.
The hollow composite panel according to claim 10, wherein the second partial panel faces each of the recessed cavities and extends toward the first partial panel to form the contact peak point, wherein the second partial panel faces The first partial panel is recessed into the third layer part of the second partial panel and the third layer part of the first partial panel merges with each other to form the contact peak point.
The hollow composite panel according to claim 12, wherein the material of the first layer comprises high-density polyethylene, and the material of the third layer comprises a combination of high-density polyethylene plus calcium carbonate and high-density polyethylene Add one or two of glass fiber, and the material of the second layer includes one or two selected from the group consisting of metallocene polyethylene plus calcium carbonate and metallocene polyethylene plus glass fiber.
A hollow composite panel, characterized in that it includes:

A first part of the panel; and

A second partial panel, wherein at least part of the first partial panel and at least part of the second partial panel maintain a predetermined distance to form at least one cavity, thereby forming a hollow integral structure around it, wherein The first partial panel and the second partial panel each include:

A first floor; and

A second layer, wherein at least part of the first layer and the second layer overlap each other, and the first part of the panel comprises a combination of at least part of the first layer and at least part of the second layer One or two, the second partial panel includes one or two selected from a combination of other at least part of the first layer and other at least part of the second layer, wherein the first partial panel and the first The two partial panels are connected to each other at the edges and form a cavity therein, wherein a plurality of parts of the second partial panel are simultaneously recessed in the direction of the first partial panel to form a predetermined number of supporting structures distributed in a preset manner and respectively form a recess The cavity, wherein each of the supporting structures is provided with at least one reinforcing rib, located in the recessed cavity and integrally extending from the supporting structure.
The hollow composite panel according to claim 14, wherein the reinforcing ribs are at least part of the supporting structure protruding toward the first part of the panel to form a U-shaped wave shape, and are formed across the bottom of the recessed cavity. At least one contact point.
15. The hollow composite panel according to claim 15, wherein each of the contact peak points is recessed toward the first partial panel to be connected to the first partial panel.
The hollow composite panel according to claim 16, wherein each of the supporting structures is provided with a pair of the reinforcing ribs to form three contact peak points uniformly to be combined with the first partial panel.
The hollow composite panel according to claim 14, wherein the first layer part of the first layer panel is located outside, the scratch resistance of the first layer is stronger than the second layer, and the first part The supporting strength of the second layer portion of the panel is stronger than the first layer portion of the first partial panel, wherein the second layer is completely covered by the first layer, and the inner wall of the second layer surrounds The cavity is formed.
The hollow composite panel according to claim 17, wherein the first layer of the first layer panel is located on the outside, the scratch resistance of the first layer is stronger than the second layer, and the first partial panel The supporting strength of the second layer is stronger than that of the first layer of the first partial panel, wherein the second layer is completely covered by the first layer, and the inner wall of the second layer is surrounded to form the Cavity.
The hollow composite panel according to any one of claims 14 to 18, wherein the first partial panel and the second partial panel each further comprise a third layer, wherein the second layer is located between the first layer and the Between the third layers, the first layer is located on the outside, the third layer is located on the inside, and the first part of the panel includes a combination of at least part of the first layer, at least part of the second layer and at least Part of one or more of the third layer, the second part of the panel includes a combination of at least part of the first layer, at least part of the second layer and at least part of the third layer One or more.
The hollow composite panel according to claim 20, wherein the first layer of the first layer panel is located outside, and the scratch resistance of the first layer is stronger than that of the second layer and the third layer , The supporting strength of one of the second layer and the third layer of the first partial panel is stronger than the first layer of the first partial panel, wherein the second layer and the third layer The layer is completely covered by the first layer, and the inner wall of the third layer surrounds the cavity to form the cavity.
The hollow composite panel according to claim 16, wherein the second part of the panel faces each recessed cavity and extends toward the first part of the panel to form the contact peak point, wherein the second part of the panel faces the first part The third layer of the panel recessed to the second partial panel and the third layer of the first partial panel are fused with each other to form the contact peak point.
22. The hollow composite panel according to claim 21, wherein the second partial panel faces each recessed cavity and extends toward the first partial panel to form the contact peak point, wherein the second partial panel faces the first partial panel. A part of the panel is recessed into the third layer of the second part of the panel and the third layer of the first part of the panel is fused with each other to form the contact peak point.
The hollow composite panel according to claim 20, wherein the material of the first layer comprises high-density polyethylene, and the material of the third layer comprises a combination of high-density polyethylene plus calcium carbonate and high-density polyethylene Add one or two of glass fiber, and the material of the second layer includes one or two selected from the group consisting of metallocene polyethylene plus calcium carbonate and metallocene polyethylene plus glass fiber.
The hollow composite panel according to claim 23, wherein the material of the first layer comprises high-density polyethylene, and the material of the third layer comprises a combination of high-density polyethylene plus calcium carbonate and high-density polyethylene Add one or two of glass fiber, and the material of the second layer includes one or two selected from the group consisting of metallocene polyethylene plus calcium carbonate and metallocene polyethylene plus glass fiber.
A method for manufacturing a hollow composite panel is characterized in that it comprises the following steps:

(a) forming a second layer and a first layer laminated on the second layer; and

(b) A first partial panel and a second partial panel are surrounded by blow molding to form an edge connection, wherein a cavity is formed between the first partial panel and the second partial panel to form a hollow structure, wherein The first partial panel includes one or two selected from a combination of at least a part of the first layer and at least a part of the second layer, and the second partial panel includes a combination of at least a part of the first layer and others. At least one or two of the second layers.
The method for manufacturing a hollow composite panel according to claim 26, further comprising:

(c) At least one contact peak is formed on the second partial panel extending into the cavity, and each contact peak is recessed toward the first partial panel to be connected to the first partial panel.
The method of manufacturing a hollow composite panel according to claim 27, wherein the second partial panel is recessed toward the first partial panel to the second layer of the second partial panel and the second layer of the first partial panel. The layers merge with each other to form the contact peak point.
The method for manufacturing a hollow composite panel according to claim 26, further comprising:

A predetermined number of supporting structures are simultaneously recessed toward the first partial panel in multiple parts of the second partial panel to form a predetermined number of supporting structures distributed in a predetermined manner and respectively form a recessed cavity.
The manufacturing method of the hollow composite panel according to claim 28, further comprising:

A predetermined number of supporting structures are simultaneously recessed toward the first partial panel in multiple parts of the second partial panel to form a predetermined number of supporting structures distributed in a predetermined manner and respectively form a recessed cavity.
28. The method for manufacturing a hollow composite panel according to claim 29, wherein each of the supporting structures is provided with at least one reinforcing rib, located in the recessed cavity and integrally extending from the supporting structure.
The method for manufacturing a hollow composite panel according to claim 30, wherein each of the supporting structures is provided with at least one reinforcing rib, which is located in the recessed cavity and extends integrally on the supporting structure.
The method for manufacturing a hollow composite panel according to claim 31, wherein the stiffener is at least part of the supporting structure that protrudes toward the first part of the panel to form a U-shaped wave shape across the recessed cavity bottom.
The method for manufacturing a hollow composite panel according to claim 32, wherein the stiffener is at least part of the supporting structure that protrudes toward the first part of the panel to form a U-shaped wave shape across the recessed cavity The bottom is opposite to form the contact peak point.
The method for manufacturing a hollow composite panel according to claim 33, wherein the first layer portion of the first layer panel is located outside, and the scratch resistance of the first layer is stronger than that of the second layer, so The supporting strength of the second layer portion of the first partial panel is stronger than the first layer portion of the first partial panel, wherein the second layer is completely covered by the first layer, and the second layer The inner wall surrounds the cavity to form the cavity, wherein the first layer of the first layer panel is located on the outside, the scratch resistance of the first layer is stronger than the second layer, and the The supporting strength of the second layer is stronger than that of the first layer of the first partial panel, wherein the second layer is completely covered by the first layer, and the inner wall of the second layer surrounds and forms the cavity.
The method for manufacturing a hollow composite panel according to claim 34, wherein the first layer part of the first layer panel is located outside, and the scratch resistance of the first layer is stronger than that of the second layer, so The supporting strength of the second layer portion of the first partial panel is stronger than the first layer portion of the first partial panel, wherein the second layer is completely covered by the first layer, and the second layer The inner wall surrounds the cavity to form the cavity, wherein the first layer of the first layer panel is located on the outside, the scratch resistance of the first layer is stronger than the second layer, and the The supporting strength of the second layer is stronger than that of the first layer of the first partial panel, wherein the second layer is completely covered by the first layer, and the inner wall of the second layer surrounds and forms the cavity.
The method for manufacturing a hollow composite panel according to claim 35, wherein step (a) further comprises:

A third layer is formed, wherein the second layer is located between the first layer and the third layer, the first layer is located on the outside, the third layer is located on the inside, and the first part of the panel includes One or more selected from the combination of at least part of the first layer, at least part of the second layer and at least part of the third layer, the second part of the panel includes a combination of at least part of the first layer One or more of one layer, at least part of the second layer and at least part of the third layer.
The method for manufacturing a hollow composite panel according to claim 36, wherein step (a) further comprises:

A third layer is formed, wherein the second layer is located between the first layer and the third layer, the first layer is located on the outside, the third layer is located on the inside, and the first part of the panel includes One or more selected from the combination of at least part of the first layer, at least part of the second layer and at least part of the third layer, the second part of the panel includes a combination of at least part of the first layer One or more of one layer, at least part of the second layer and at least part of the third layer.
The method for manufacturing a hollow composite panel according to claim 36, wherein the second part of the panel faces each recessed cavity and extends toward the first part of the panel to form the contact peak point, wherein the second part of the panel faces The third layer of the first partial panel recessed into the second partial panel and the third layer of the first partial panel merge with each other to form the contact peak point.
The method for manufacturing a hollow composite panel according to claim 38, wherein the second part of the panel faces each recessed cavity and extends toward the first part of the panel to form the contact peak point, wherein the second part of the panel faces The third layer of the first partial panel recessed into the second partial panel and the third layer of the first partial panel merge with each other to form the contact peak point.
A table top suitable for being supported on a table leg device to form a table, characterized in that it comprises:

A first part of the panel;

A second part of the panel;

A first floor; and

A second layer, wherein at least part of the first layer and the second layer overlap each other to form the first partial panel and the second partial panel, and the first partial panel includes a combination of at least part of the One or both of the first layer and at least part of the second layer, and the second part of the panel includes one selected from combining other at least part of the first layer and other at least part of the second layer One or two, wherein the first partial panel and the second partial panel are connected to each other at an edge position, and at least part of the first partial panel and at least part of the second partial panel maintain a predetermined distance to form At least one cavity is surrounded to form a hollow one-piece structure, wherein the second part of the panel extends into the cavity to form at least one contact peak point, each of the contact peak points is recessed toward the first part of the panel to meet the The first part of the panel is connected.
A table top suitable for being supported on a table leg device to form a table, characterized in that it comprises:

A first part of the panel; and

A second partial panel, wherein at least part of the first partial panel and at least part of the second partial panel maintain a predetermined distance to form at least one cavity, thereby forming a hollow integral structure around it, wherein The first partial panel and the second partial panel each include:

A first floor; and

A second layer, wherein at least part of the first layer and the second layer overlap each other, and the first part of the panel comprises a combination of at least part of the first layer and at least part of the second layer One or two, the second partial panel includes one or two selected from a combination of other at least part of the first layer and other at least part of the second layer, wherein the first partial panel and the first The two partial panels are connected to each other at the edges and form a cavity therein, wherein a plurality of parts of the second partial panel are simultaneously recessed in the direction of the first partial panel to form a predetermined number of supporting structures distributed in a preset manner and respectively form a recess The cavity, wherein each of the supporting structures is provided with at least one reinforcing rib, located in the recessed cavity and integrally extending from the supporting structure.
A table, characterized in that it includes:

At least one table leg device; and

A desktop board, wherein the desktop board is supported on the table leg device, and the desktop board includes:

A first part of the panel;

A second part of the panel;

A first floor; and

A second layer, wherein at least part of the first layer and the second layer overlap each other to form the first partial panel and the second partial panel, and the first partial panel includes a combination of at least part of the One or both of the first layer and at least part of the second layer, and the second part of the panel includes one selected from combining other at least part of the first layer and other at least part of the second layer One or two, wherein the first partial panel and the second partial panel are connected to each other at an edge position, and at least part of the first partial panel and at least part of the second partial panel maintain a predetermined distance to form At least one cavity is surrounded to form a hollow one-piece structure, wherein the second part of the panel extends into the cavity to form at least one contact peak point, each of the contact peak points is recessed toward the first part of the panel to meet the The first part of the panel is connected.
A table, characterized in that it includes:

At least one table leg device; and

A desktop board, wherein the desktop board is supported on the table leg device, and the desktop board includes:

A first part of the panel; and

A second partial panel, wherein at least part of the first partial panel and at least part of the second partial panel maintain a predetermined distance to form at least one cavity, thereby forming a hollow integral structure around it, wherein The first partial panel and the second partial panel each include:

A first floor; and

A second layer, wherein at least part of the first layer and the second layer overlap each other, and the first part of the panel comprises a combination of at least part of the first layer and at least part of the second layer One or two, the second partial panel includes one or two selected from a combination of other at least part of the first layer and other at least part of the second layer, wherein the first partial panel and the first The two partial panels are connected to each other at the edges and form a cavity therein, wherein a plurality of parts of the second partial panel are simultaneously recessed in the direction of the first partial panel to form a predetermined number of supporting structures distributed in a preset manner and respectively form a recess The cavity, wherein each of the supporting structures is provided with at least one reinforcing rib, located in the recessed cavity and integrally extending from the supporting structure.