Polypropylene composite board with covered edges

Abstract

The utility model discloses a polypropylene composite board with covered edges, which comprises a polypropylene composite board main body, the polypropylene composite board main body comprises a polypropylene honeycomb core material, and the two sides of the polypropylene honeycomb core material are provided with thermal insulation layers; glass fiber cloth is arranged on the side, away from the polypropylene honeycomb core material, of the heat preservation layer. The polypropylene honeycomb core material, the thermal insulation layer and the glass fiber cloth are compounded through a hot melt adhesive; the periphery of the polypropylene composite board main body is provided with a covering edge; the covered edge is fixed with the polypropylene composite board main body through hot pressing. Based on the polypropylene composite board with the covered edge, the polypropylene honeycomb core material can effectively prevent heat transfer and sound transmission, and has good heat preservation and heat insulation performance; the heat preservation layer further slows down the transfer speed of heat in the material, and the heat preservation effect of the polypropylene composite board is enhanced; the covered edge can prevent the edge of the polypropylene composite board from being exposed, reduces collision and abrasion of the edge, and effectively protects safety of personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of composite boards, in particular to a polypropylene composite board with edge binding. Background Art

[0002] At present, the common polypropylene composite panels mostly adopt a sandwich structure, that is, a layer of polypropylene core material and fiber cloth fixed on both sides of the polypropylene core material, and the fiber cloth is glass fiber cloth or polyester cloth. Polypropylene composite panels have good waterproof properties, can avoid corrosion and deformation of materials in humid environments, have good chemical stability, can withstand corrosion by corrosive substances such as acids, alkalis, and salts, are light in weight, tough and durable, and have a long service life. However, the thermal insulation effect of this polypropylene composite panel is limited, and the scope of application is relatively small; in addition, the common polypropylene composite panel does not have an edge, and the exposed edge is easily damaged, deformed or sharp, which can easily cut people, especially in public places. This danger cannot be ignored. Utility Model Content

[0003] The utility model aims to provide a polypropylene composite board with edge binding, which aims to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: a polypropylene composite board with edging, comprising: a polypropylene composite board main body, the polypropylene composite board main body comprises a polypropylene honeycomb core material, and insulation layers are arranged on both sides of the polypropylene honeycomb core material; glass fiber cloth is arranged on the side of the insulation layer away from the polypropylene honeycomb core material; the polypropylene honeycomb core material, the insulation layer and the glass fiber cloth are composited by hot melt adhesive; edging is arranged around the polypropylene composite board main body; the edging is fixed to the polypropylene composite board main body by hot pressing.

[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: the edge wrapping is a low melting point PET non-woven fabric.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the thermal insulation layer is a glass fiber reinforced polyurethane foam material.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the thermal insulation layer is a hollow graphene thermal insulation polypropylene fiber layer.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: a sound insulation layer is arranged between the thermal insulation layer and the glass fiber cloth.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the sound insulation layer is a needle-punched sound-absorbing and sound-insulating fiber felt.

[0010] The beneficial effects of the utility model are as follows: based on the polypropylene composite board with hemming of the utility model, the polypropylene honeycomb core material can effectively prevent heat transfer and sound propagation, and has good thermal insulation performance; the thermal insulation layer further slows down the heat transfer speed in the material, and enhances the thermal insulation effect of the polypropylene composite board; the hemming can prevent the edge of the polypropylene composite board from being exposed, reduce the collision and wear of the edge, and effectively protect the safety of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the polypropylene composite board with hemming involved in the first and second embodiments;

[0012] Figure 2 This is a schematic structural diagram of a polypropylene composite board with hemming involved in Example 3;

[0013] In the figure: 1-polypropylene honeycomb core, 2-thermal insulation layer, 3-glass fiber cloth, 4-edging, 5-sound insulation layer. DETAILED DESCRIPTION

[0014] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] Embodiment 1

[0016] Combination Figure 1 This embodiment is described in detail. A polypropylene composite board with edging includes: a polypropylene composite board body, the polypropylene composite board body includes a polypropylene honeycomb core material 1, and thermal insulation layers 2 are arranged on both sides of the polypropylene honeycomb core material 1; a glass fiber cloth 3 is arranged on the side of the thermal insulation layer 2 away from the polypropylene honeycomb core material 1; the polypropylene honeycomb core material 1, the thermal insulation layer 2 and the glass fiber cloth 3 are compounded by hot melt adhesive; an edging 4 is arranged around the polypropylene composite board body; the edging 4 is fixed to the polypropylene composite board body by hot pressing. The polypropylene honeycomb core material 1 can effectively prevent heat transfer and sound propagation, and has good thermal insulation performance. The edging 4 can prevent the edge of the polypropylene composite board from being exposed, reduce the collision and wear of the edge, and effectively protect the safety of personnel.

[0017] Furthermore, the edge wrapping 4 is a low melting point PET non-woven fabric. When the hot pressing process temperature is set at about 160° C., the low melting point PET non-woven fabric will melt during the hot pressing process and adhere to the polypropylene composite board body to form an edge wrapping.

[0018] Furthermore, the thermal insulation layer 2 is made of glass fiber reinforced polyurethane foam material.

[0019] The preparation steps of the glass fiber reinforced polyurethane foam material are as follows: according to the production principle of polyurethane foam material, a certain mass of polyether polyol, foaming agent HFC-365mfc, catalyst and silicone oil are placed in a plastic cup; glass fiber and water with a mass fraction of 6% are added to the above raw materials, and the mixture is fully mixed under the action of an electric stirrer; polymethylene polyphenyl polyisocyanate is quickly added to the mixture, stirred for 1 minute, and stopped after a milky white color is produced; the mixture that is stirred evenly and has a milky white phenomenon is poured into a mold; the mold is removed after the mixture reacts and the hardness reaches the standard. The mechanical properties and thermal stability of glass fiber are relatively strong. Adding it to polyurethane foam material can significantly improve the strength, toughness and heat resistance of the material. In addition, glass fiber can also enhance the thermal insulation and heat preservation of polyurethane foam material. This is because the fiber is evenly distributed in the polyurethane material, forming a large number of heat barrier channels, which effectively hinders the transfer of heat and slows down the transfer rate of heat in the material.

[0020] Embodiment 2

[0021] The difference from the first embodiment is that the thermal insulation layer 2 is a hollow graphene thermal insulation polypropylene fiber layer. The hollow graphene thermal insulation polypropylene fiber is a phase change temperature regulating fiber. Phase change refers to the transformation of a substance from one phase to another, absorbing or releasing heat through phase change, thereby achieving temperature regulation. Since phase change materials are easy to flow and dissipate in liquid state, microcapsule technology is often used in the development of phase change temperature regulating fibers, that is, solids or liquids are coated with film-forming materials into particles with core-shell structure. The hollow graphene thermal insulation polypropylene fiber is prepared by first preparing temperature-adjustable phase change microcapsules, and the phase change temperature is controlled at about 25°C. Then, the well-formed phase change microcapsules are used to prepare fibers using composite spinning technology to achieve good thermal insulation performance.

[0022] Embodiment 3

[0023] Combination Figure 2 This embodiment is described in detail. The difference from the first embodiment is that a sound insulation layer 5 is provided between the thermal insulation layer 2 and the glass fiber cloth 3 .

[0024] Furthermore, the sound insulation layer 5 is a needle-punched sound-absorbing and sound-insulating fiber felt. Specifically, the needle-punched sound-absorbing and sound-insulating fiber felt is made by adding low-melting-point polyester fibers to a 0.44-0.666tex polyester fiber web and reinforcing it through needle punching. It has the characteristics of low cost, light weight, recyclability, etc., and has good sound absorption effect. The needle punching method is to use the up and down movement of a mechanical needle to needle-punch a fiber web that has been combed and stacked according to different fiber orientations, so that the fibers themselves are entangled with each other to achieve the effect of consolidating the fiber web. The fiber felt processed by the needle punching method can form a multi-layer three-dimensional mesh structure with uniform three-dimensional voids, which can be used as an ideal sound-absorbing and sound-insulating material. Needle-punched fiber felt is a porous sound-absorbing material. Its noise control mechanism is that when sound waves enter the pores of the sound-absorbing material, part of the sound waves are reflected, and part of the sound waves penetrate into the micropores inside the material, stimulating the air and tendons in the pores to vibrate. The friction resistance between the air and the tendons causes the sound energy to be continuously converted into heat energy and consumed; the heat exchange between the air and the tendons also consumes part of the sound energy, thereby achieving the purpose of sound absorption.

[0025] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A polypropylene composite board with edge binding, comprising: A polypropylene composite plate body, characterized in that the polypropylene composite plate body comprises a polypropylene honeycomb core material (1), and thermal insulation layers (2) are arranged on both sides of the polypropylene honeycomb core material (1); a glass fiber cloth (3) is arranged on the side of the thermal insulation layer (2) away from the polypropylene honeycomb core material (1); the polypropylene honeycomb core material (1), the thermal insulation layer (2) and the glass fiber cloth (3) are composited by hot melt adhesive; a rim (4) is arranged around the polypropylene composite plate body; and the rim (4) is fixed to the polypropylene composite plate body by hot pressing.

2. The polypropylene composite board with edge binding according to claim 1, characterized in that: The edge wrapping (4) is low melting point PET non-woven fabric.

3. The polypropylene composite board with edge binding according to claim 1, characterized in that: The thermal insulation layer (2) is a glass fiber reinforced polyurethane foam material.

4. The polypropylene composite board with edge binding according to claim 1, characterized in that: The thermal insulation layer (2) is a hollow graphene thermal insulation polypropylene fiber layer.

5. The polypropylene composite board with edge binding according to claim 1, characterized in that: A sound insulation layer (5) is provided between the thermal insulation layer (2) and the glass fiber cloth (3).

6. The polypropylene composite board with edge binding according to claim 5, characterized in that: The sound insulation layer (5) is a needle-punched sound-absorbing and sound-insulating fiber felt.

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