Heat-insulating and flame-retardant APET (amorphous polyethylene terephthalate) sheet

Abstract

The utility model relates to the technical field of APET sheets, in particular to a heat-insulation flame-retardant APET sheet which comprises an APET base layer, heat-insulation layers are fixedly connected to the upper side face and the lower side face of the APET base layer respectively, buffer layers are fixedly connected to the sides, away from the APET base layer, of the two heat-insulation layers respectively, and reinforcing layers are fixedly connected to the sides, away from the heat-insulation layers, of the two buffer layers respectively. Compared with the prior art, the APET sheet has the advantages that the heat-resistant layer, the flame-retardant layer and the protective layer are arranged in a matched mode, a heat-resistant and flame-retardant structure is additionally arranged on the basis of an existing APET base layer, so that the flame-retardant performance of the APET sheet is better, the APET base layer is surrounded and protected through the arrangement of the heat-resistant layer, the flame-retardant layer and the protective layer, and the service life of the APET sheet is prolonged. According to the APET sheet, the heat insulation performance of the APET sheet is good, so that the situation that high temperature continues to be conducted downwards through the APET sheet is greatly avoided, the situation that an object protected by the APET sheet is affected by the high temperature is avoided, and the practicability of the APET sheet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of APET sheets, in particular to a heat-insulating and flame-retardant APET sheet. Background Art

[0002] APET is the full name of Amorphous Polyethylene Terephthalate, and its chemical name is non-crystallized polyethylene terephthalate, which is a blister material. APET blister material polyester sheet (PETSHEET) is also called polyester hard tape. It is a thermoplastic environmentally friendly plastic product. Its scraps and waste products are recyclable. The chemical elements it contains are carbon, hydrogen, and oxygen, just like paper. It is a degradable plastic. After the packaging products made of this material are discarded, they will eventually become water and carbon dioxide.

[0003] Although the melting point of APET sheet is relatively high, which can greatly prevent fire caused by external fire sources, its heat insulation performance is poor. When a fire occurs in the outside, the temperature will rise. At this time, the high temperature will continue to be transmitted downward through the APET sheet, which will have a certain impact on the items protected by APET. Therefore, a heat-insulating and flame-retardant APET sheet is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the present invention is to provide a heat-insulating flame-retardant APET sheet to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the utility model provides a heat-insulating flame-retardant APET sheet, comprising an APET base layer, wherein the upper and lower side surfaces of the APET base layer are fixedly connected with a heat insulation layer, the two heat insulation layers are fixedly connected with a buffer layer on one side away from the APET base layer, the two buffer layers are fixedly connected with a reinforcement layer on one side away from the heat insulation layer, the two reinforcement layers are fixedly connected with a heat-resistant layer on one side away from the buffer layer, the two heat-resistant layers are fixedly connected with a flame-retardant layer on one side away from the reinforcement layer, and the two flame-retardant layers are fixedly connected with a protective layer on one side away from the heat-resistant layer.

[0007] Preferably, any of the above schemes is that the material of the thermal insulation layer is polyurethane rigid foam, which is mostly a closed-cell structure and has the characteristics of good thermal insulation effect, high specific strength, and heat resistance, so that the thermal insulation and high temperature resistance effects of the thermal insulation layer are relatively good.

[0008] Preferably, any of the above schemes is that the material of the buffer layer is polyurethane soft foam, which has good elasticity and thermal insulation properties, so that the buffer layer has better buffering and thermal insulation effects.

[0009] Preferably, the material of the reinforcement layer is thermoplastic polyester, which perfectly combines the elasticity of rubber, the strength of engineering plastics and the processing characteristics of thermoplastics, and has amazing resilience, outstanding toughness and strength, ensuring that the structure of the reinforcement layer is relatively stable while making the elastic performance of the reinforcement layer better.

[0010] Preferably, any of the above schemes is that the material of the heat-resistant layer is EPDM, and EPDM has good heat resistance, so that the heat-resistant layer has better heat resistance.

[0011] Preferably, any of the above schemes is that the material of the flame retardant layer is flame retardant polycarbonate, which has a high melting point and flame retardant acid ester has good heat resistance and impact resistance, so that the flame retardant layer has good flame retardancy and impact resistance.

[0012] Preferably, any of the above schemes is that the material of the protective layer is fluoroplastic, which has good heat resistance and wear resistance, so that the wear resistance and heat resistance of the protective layer are relatively good.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0014] 1. Through the coordinated arrangement of the heat-resistant layer, the flame-retardant layer and the protective layer, a heat-resistant and flame-retardant structure is added on the basis of the existing APET base layer, so that the flame-retardant performance of the APET sheet is better, and through the coordinated arrangement with the heat-insulating layer, the APET base layer is surrounded and protected, so that the heat-insulating performance of the APET sheet is better, thereby greatly avoiding the situation where high temperature continues to be conducted downward through the APET sheet, and then avoiding the situation where the items protected by the APET sheet are affected by high temperature, thereby improving the practicality of the APET sheet.

[0015] 2. The protective layer makes the APET sheet more wear-resistant, the buffer layer can buffer the force on the APET sheet, and the structural strength of the APET sheet is increased by cooperating with the reinforcing layer, which greatly avoids the APET sheet from being damaged by external forces and ensures the service life of the APET sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the hierarchical structure of the utility model.

[0017] In the figure: 1-APET base layer, 2-thermal insulation layer, 3-buffer layer, 4-reinforcement layer, 5-heat-resistant layer, 6-flame retardant layer, 7-protective layer. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0019] like Figure 1 As shown, a heat-insulating flame-retardant APET sheet comprises an APET base layer 1, and the upper and lower sides of the APET base layer 1 are fixedly connected with a heat-insulating layer 2, and the heat-insulating layer 2 can greatly prevent the heat from continuing to transfer downward, and the two heat-insulating layers 2 are fixedly connected with a buffer layer 3 on the side away from the APET base layer 1, and the buffer layer 3 can buffer the external force, which greatly prevents the influence of the external force on the APET sheet. The two buffer layers 3 are fixedly connected with a reinforcing layer 4 on the side away from the heat-insulating layer 2, and the structural strength of the APET sheet can be increased by the reinforcing layer 4, and the external force can be buffered by the reinforcing layer 4. By cooperating with the buffer layer 3, the APET sheet is resistant to the external force. The buffering performance is relatively good, which greatly avoids the APET sheet from breaking due to external forces. The two reinforcing layers 4 are fixedly connected with a heat-resistant layer 5 on one side away from the buffer layer 3. The heat-resistant layer 5 allows the APET sheet to withstand high temperatures without deformation. The two heat-resistant layers 5 are fixedly connected with a flame-retardant layer 6 on one side away from the reinforcing layer 4. The flame-retardant layer 6 makes the flame-retardant performance against external fire sources relatively good, which greatly avoids the APET sheet from catching fire. The two flame-retardant layers 6 are fixedly connected with a protective layer 7 on one side away from the heat-resistant layer 5. The protective layer 7 not only makes the wear resistance of the upper and lower sides of the APET sheet relatively good, but also makes the heat resistance of the APET sheet relatively good.

[0020] As an optional technical solution of the present invention, the material of the thermal insulation layer 2 is polyurethane rigid foam, which is mostly a closed-cell structure and has the characteristics of good thermal insulation effect, high specific strength, and heat resistance, so that the thermal insulation and high temperature resistance effects of the thermal insulation layer 2 are relatively good.

[0021] As an optional technical solution of the present invention, the material of the buffer layer 3 is polyurethane soft foam, which has good elasticity and thermal insulation performance, so that the buffer layer 3 has relatively good buffering and thermal insulation effects.

[0022] As an optional technical solution of the present invention, the material of the reinforcing layer 4 is thermoplastic polyester. Thermoplastic polyester perfectly combines the elasticity of rubber, the strength of engineering plastics and the processing characteristics of thermoplastics. It has amazing resilience, outstanding toughness and strength, ensuring that the structure of the reinforcing layer 4 is relatively stable while making the elastic performance of the reinforcing layer 4 better.

[0023] As an optional technical solution of the present invention, the material of the heat-resistant layer 5 is EPDM, which has good heat resistance, so that the heat-resistant layer 5 has relatively good heat resistance.

[0024] As an optional technical solution of the present invention, the material of the flame retardant layer 6 is flame retardant polycarbonate. The melting point of flame retardant polycarbonate is relatively high, and the heat resistance and impact resistance of flame retardant acid ester are relatively good, so that the flame retardant and impact resistance of the flame retardant layer 6 are relatively good.

[0025] As an optional technical solution of the present invention, the material of the protective layer 7 is fluoroplastic, which has good heat resistance and wear resistance, so that the wear resistance and heat resistance of the protective layer 7 are relatively good.

[0026] In summary, the heat-insulating flame-retardant APET sheet, through the coordinated arrangement of the heat-resistant layer 5, the flame-retardant layer 6 and the protective layer 7, adds a heat-resistant and flame-retardant structure on the basis of the existing APET base layer 1, thereby making the flame-retardant performance of the APET sheet better, and through the coordinated arrangement with the heat-insulating layer 2, the APET base layer 1 is surrounded and protected, so that the heat-insulating performance of the APET sheet is relatively good, thereby greatly avoiding the situation where the high temperature continues to be conducted downward through the APET sheet, and then avoiding the situation where the items protected by the APET sheet are affected by the high temperature, thereby improving the practicality of the APET sheet, and the wear resistance of the APET sheet is relatively good through the protective layer 7, the force on the APET sheet can be buffered by the buffer layer 3, and the structural strength of the APET sheet is increased through the coordinated arrangement with the reinforcing layer 4, which greatly avoids the situation where the APET sheet is damaged by external forces, thereby ensuring the service life of the APET sheet.

Claims

1. A heat-insulating flame-retardant APET sheet, characterized in that: The invention comprises an APET base layer (1), wherein the upper and lower sides of the APET base layer (1) are both fixedly connected to a heat insulation layer (2), the sides of the two heat insulation layers (2) away from the APET base layer (1) are both fixedly connected to a buffer layer (3), the sides of the two buffer layers (3) away from the heat insulation layer (2) are both fixedly connected to a reinforcement layer (4), the sides of the two reinforcement layers (4) away from the buffer layer (3) are both fixedly connected to a heat-resistant layer (5), the sides of the two heat-resistant layers (5) away from the reinforcement layer (4) are both fixedly connected to a flame-retardant layer (6), and the sides of the two flame-retardant layers (6) away from the heat-resistant layer (5) are both fixedly connected to a protective layer (7).

2. The heat-insulating flame-retardant APET sheet according to claim 1, characterized in that: The material of the heat insulation layer (2) is polyurethane rigid foam.

3. The heat-insulating flame-retardant APET sheet according to claim 2, characterized in that: The material of the buffer layer (3) is polyurethane soft foam.

4. The heat-insulating flame-retardant APET sheet according to claim 3, characterized in that: The material of the reinforcement layer (4) is thermoplastic polyester.

5. The heat-insulating flame-retardant APET sheet according to claim 4, characterized in that: The material of the heat-resistant layer (5) is EPDM.

6. The heat-insulating flame-retardant APET sheet according to claim 5, characterized in that: The material of the flame retardant layer (6) is flame retardant polycarbonate.

7. The heat-insulating flame-retardant APET sheet according to claim 6, characterized in that: The material of the protective layer (7) is fluoroplastic.

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