A shielding film with good moisture and heat resistance and its preparation method

Abstract

The invention discloses a shielding film with good humidity and heat resistance. The shielding film adopts a four-layer structure including a tempered glass film, a waterproof breathable film, an electromagnetic shielding film and a thermal-insulating film, wherein air channels are arranged in the tempered glass film, the electromagnetic shielding film and the thermal-insulating film; steel wires are arranged in the tempered glass film, the waterproof breathable film, the electromagnetic shielding film and the thermal-insulating film; anti-static particles are arranged between the tempered glass film, the waterproof breathable film, the electromagnetic shielding film and the thermal-insulating film. The shielding film has the benefits as follows: the waterproof breathable film and the thermal-insulating film are arranged in the shielding film with good humidity and heat resistance, heat transfer in the shielding film can be blocked, air in the film can freely flow along the air channels, the situation that the inside of the film is in a humid and hot environment for a long time is avoided, and the shielding film has good humidity and heat resistance, requires few production processing procedures and is simple in process, low in cost and good in practicability.

Description

technical field [0001] The invention relates to the field of shielding films, in particular to a shielding film with good moisture and heat resistance and a preparation method. Background technique [0002] Shielding film is a film with good waterproof, moisture-proof, anti-static, anti-electromagnetic and anti-static functions. It is generally made of MPET / PE and is widely used in static-sensitive components, IC packaging, large precision machinery PC boards, IC integrated circuits, optical drives, hard disks, electronic components and other packaging have the advantages of high mechanical strength and good heat sealing. However, there are still some problems in the actual use of traditional shielding films, such as traditional shielding films Generally, the air is also blocked in the film while being waterproof, so that the film is kept in a humid environment for a long time. In a hot and humid environment, this has a great impact on the quality of the film-wrapped items....

AI Technical Summary

Problems solved by technology

[0002] Shielding film is a film with good waterproof, moisture-proof, anti-static, anti-electromagnetic and anti-static functions. It is generally made of MPET / PE and is widely used in static-sensitive components, IC packaging, large precision machinery PC boards, IC integrated circuits, optical drives, hard disks, electronic components and other packaging have the advantages of high mechanical strength and good heat sealing. However, there are still some problems in the actual use of traditional shielding films, such as traditional shielding films Generally, the air is also blocked in the film while being waterproof, so that the film is kept in a humid environment for a long time. In a hot and humid environment, this has a great impact on the quality of the film-wrapped items. In view of the above situation, a shielding film with good heat and humidity resistance can be designed to solve the above problems

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