Conductive foam with flame-retardant function

Abstract

The utility model discloses conductive foam with a flame-retardant function, and relates to the technical field of conductive foam, in particular to the conductive foam with the flame-retardant function. The conductive foam comprises a conductive foam body, the conductive foam body is a cylinder, the conductive foam body is of a three-layer hot-pressing structure, the conductive foam body is formed by sequentially hot-pressing a foam base material layer, a conductive layer and a flame-retardant layer from inside to outside, the foam base material layer is one of polyurethane foam, polyether foam or polyethylene foam, the polyurethane foam is preferentially selected, the polyether foam is preferentially selected, and the flame-retardant layer is preferentially selected. The conductive layer is filled with graphene powder, the mass of the conductive layer accounts for 10-30% of the total mass of the conductive foam body, and the graphene powder has good conductivity and flexibility and can meet the use requirements of the conductive foam; the flame-retardant layer is filled with one of aluminum hydroxide, magnesium hydroxide and zinc borate. According to the utility model, the cable not only has good conductivity, but also has higher flame retardant property, can effectively prevent fire, and can solve the problems proposed in the background technology.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive foam, in particular to a conductive foam with a flame retardant function. Background Art

[0002] Conductive foam is a special foam with conductive properties that can effectively prevent electromagnetic interference. It has a wide range of uses, mainly including the following aspects: Conductive foam can be used in electronic products, automobiles, construction and other fields to effectively reduce electromagnetic radiation and protect human health; Conductive foam can be used in optoelectronics, microelectronics, aviation, aerospace and other high-tech enterprises. As a new type of antistatic material, its electrostatic protection performance is permanent and has no dependence on environmental humidity; Conductive foam can also be used in turnover, storage, transportation, packaging and other fields that require buffering and shock absorption, such as televisions, mobile phones, medical instruments and other electronic products, as well as military and aerospace fields. Conductive foam is widely used in various fields due to its special conductive properties and excellent physical properties, bringing many conveniences to our lives and work.

[0003] With the popularization and application of electronic products, the requirements for the fire resistance and conductivity of electronic materials are getting higher and higher. Although traditional conductive foam has good conductivity, its flame retardant performance is poor and it is easy to burn in a fire, posing a hidden danger to people's life and property safety. Therefore, it is necessary to propose a conductive foam with flame retardant function to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a conductive foam with flame retardant function in view of the defects and shortcomings of the prior art. This foam not only has good conductive properties, but also has high flame retardant properties, can effectively prevent the occurrence of fire, and can solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a conductive foam with flame retardant function, which comprises a conductive foam body 1, the conductive foam body 1 is a cylinder, the conductive foam body 1 is a three-layer hot-pressed structure, and the conductive foam body 1 is formed by hot pressing a foam substrate layer 2, a conductive layer 3, and a flame retardant layer 4 from the inside to the outside.

[0006] The foam substrate layer 2 is one of polyurethane foam, polyether foam or polyethylene foam, and polyurethane foam is preferred.

[0007] The conductive layer 3 is filled with graphene powder, and the mass of the conductive layer 3 accounts for 10-30% of the total mass of the conductive foam body 1. The graphene powder has good conductivity and softness, and can meet the use requirements of the conductive foam.

[0008] The flame retardant layer 4 is filled with one of aluminum hydroxide, magnesium hydroxide, and zinc borate, preferably aluminum hydroxide, and the mass of the flame retardant layer 4 accounts for 10-30% of the total mass of the conductive foam body 1. The flame retardant layer 4 can improve the flame retardant performance of the conductive foam, so that it can effectively slow down the spread of flames when encountering a fire source, reducing the risk of fire.

[0009] The foam substrate layer 2, the conductive layer 3 and the flame retardant layer 4 are all filled with an auxiliary agent 5, which is one of a silane coupling agent, an antioxidant and an ultraviolet absorber, preferably a silane coupling agent, and the amount of the auxiliary agent 5 added is 1-5% of the total mass of the conductive foam body 1. The provision of the auxiliary agent 5 can improve the compatibility between the foam substrate layer 2 and the conductive layer 3 and the flame retardant layer 4, making the performance of the conductive foam more stable.

[0010] One end surface of the conductive foam body 1 is provided with a groove 1-1, and the other end surface of the conductive foam body 1 is provided with a snap-fit ​​block 1-2. Two adjacent conductive foam bodies 1 are connected via the groove 1-1 and the snap-fit ​​block 1-2, and the snap-fit ​​block 1-2 is snapped into the groove 1-1.

[0011] Working principle of the utility model: the foam substrate layer provided in the utility model is one of polyurethane foam, polyether foam or polyethylene foam; the conductive layer is filled with graphene powder, which has good conductivity and softness and can meet the use requirements of conductive foam; the flame retardant layer is filled with one of aluminum hydroxide, magnesium hydroxide and zinc borate; the flame retardant layer can improve the flame retardant properties of the conductive foam, so that it can effectively slow down the spread of flames and reduce the risk of fire when encountering a fire source; two or more conductive foams can be quickly spliced ​​together through the groove of the conductive foam body and the snap-fit ​​block of another conductive foam body, thereby providing conductive foams of various sizes.

[0012] After adopting the above technical scheme, the beneficial effects of the utility model are as follows: the conductive foam of the utility model has high flame retardant properties, can effectively prevent the occurrence of fire, can solve the problem that although the traditional conductive foam has good conductive properties, its flame retardant properties are poor, it is easy to burn in a fire, and brings hidden dangers to people’s life and property safety. It is widely used in various occasions that require fire prevention and conductivity to ensure the normal operation and safe use of electronic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a side sectional view of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of two conductive foams spliced ​​together in the utility model.

[0016] Description of the reference numerals: conductive foam body 1, groove 1-1, snap-fit ​​block 1-2, foam substrate layer 2, conductive layer 3, flame retardant layer 4, additive 5. DETAILED DESCRIPTION

[0017] See also Figure 1-2 As shown, the technical solution adopted in this specific embodiment is: a conductive foam with flame retardant function, which includes a conductive foam body 1, the conductive foam body 1 is a cylinder, one end face of the conductive foam body 1 is provided with a groove 1-1, and the other end face of the conductive foam body 1 is provided with a snap-fit ​​block 1-2, and two adjacent conductive foam bodies 1 are connected by the groove 1-1 and the snap-fit ​​block 1-2, and the snap-fit ​​block 1-2 is snapped into the groove 1-1. The conductive foam body 1 is a three-layer hot-pressed structure, and the conductive foam body 1 is formed by hot-pressing the foam substrate layer 2, the conductive layer 3, and the flame retardant layer 4 from the inside to the outside. The foam substrate layer 2 is one of polyurethane foam, polyether foam or polyethylene foam, and polyurethane foam is preferably selected. The conductive layer 3 is filled with graphene powder, and the mass of the conductive layer 3 accounts for 10-30% of the total mass of the conductive foam body 1. The graphene powder has good conductivity and softness, and can meet the use requirements of the conductive foam. The flame retardant layer 4 is filled with one of aluminum hydroxide, magnesium hydroxide, and zinc borate, with aluminum hydroxide being preferred. The mass of the flame retardant layer 4 accounts for 10-30% of the total mass of the conductive foam body 1. The flame retardant layer 4 can improve the flame retardant properties of the conductive foam, so that it can effectively slow down the spread of flames when encountering a fire source, thereby reducing the risk of fire. The foam substrate layer 2, the conductive layer 3, and the flame retardant layer 4 are all filled with an additive 5, which is one of a silane coupling agent, an antioxidant, and an ultraviolet absorber, with a silane coupling agent being preferred. The amount of additive 5 added is 1-5% of the total mass of the conductive foam body 1. The additive 5 can improve the compatibility between the foam substrate layer 2 and the conductive layer 3 and the flame retardant layer 4, making the performance of the conductive foam more stable.

[0018] The present specific embodiment provides a conductive foam with flame retardant function, which is formed by hot pressing a foam substrate layer, a conductive layer, and a flame retardant layer in sequence from the inside to the outside. The foam substrate layer is one of polyurethane foam, polyether foam or polyethylene foam, the conductive layer is filled with graphene powder, and the flame retardant layer is filled with one of aluminum hydroxide, magnesium hydroxide, and zinc borate. The utility model not only has good conductive properties, but also has high flame retardant properties, and can effectively prevent the occurrence of fire.

[0019] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A flame retardant conductive foam, characterized in that: It comprises a conductive foam body (1), which is a cylinder and a three-layer hot-pressed structure. The conductive foam body (1) is formed by hot-pressing a foam substrate layer (2), a conductive layer (3), and a flame-retardant layer (4) in sequence from the inside to the outside.

2. The flame-retardant conductive foam according to claim 1, characterized in that: The foam substrate layer (2) is one of polyurethane foam, polyether foam or polyethylene foam.

3. The flame-retardant conductive foam according to claim 1, characterized in that: The conductive layer (3) is filled with graphene powder, and the mass of the conductive layer (3) accounts for 10-30% of the total mass of the conductive foam body (1).

4. The flame-retardant conductive foam according to claim 1, characterized in that: One end surface of the conductive foam body (1) is provided with a groove (1-1), and the other end surface of the conductive foam body (1) is provided with a snap-fit ​​block (1-2); two adjacent conductive foam bodies (1) are connected via the groove (1-1) and the snap-fit ​​block (1-2), and the snap-fit ​​block (1-2) is snap-fitted into the groove (1-1).

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