Anti-electromagnetic interference and anti-static packing material

Abstract

The invention discloses an anti-electromagnetic interference and anti-static packing material. The packing material comprises an outer layer, an intermediate layer and an inner layer, wherein the outer layer is a non-conductive common film, namely low-density polyethylene (LDPE) with high mechanical strength and low slip agent content; the intermediate layer is a transition layer, namely a linearlow-density polyethylene resin (LLDPE); and the inner layer is a conductive anti-electromagnetic interference layer and consists of the following components in percentage by weight: 0.5 to 1 percent of metal powder, 40 to 60 percent of thermoplastic polypropylene resin, 15 to 25 percent of carbon powder, 10 to 15 percent of diluting agent, 2 to 3 percent of coupling agent, 0.5 to 5 percent of slip agent, 2 to 8 percent of plasticizer, 0.3 to 0.5 percent of stabilizer, 0.1 to 0.5 percent of antioxidant and 5 to 10 percent of dispersant. The product has the advantages of high anti-static and anti-electromagnetic interference performance, wide application range, low production cost and the like, and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention relates to a packaging material, in particular to an anti-electromagnetic interference and anti-static packaging material. Background technique [0002] In recent years, with the deepening of people's understanding of electrostatic hazards, anti-static packaging has become more and more important. As we all know, static electricity will be generated between insulators. When the static electricity accumulates to a certain extent and encounters suitable conditions, electrostatic discharge will occur, and huge energy will be released instantly, thus causing damage to objects. In the field of packaging, various disadvantages caused by static electricity are not uncommon. For example, when packaging powdered goods with film, the sealing strength is often greatly reduced due to the electrostatic attraction of the heat-sealing surface, which becomes an important cause of serious damage to the packaging during storage and transportation of the g...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent application No. CN02806720.7, titled "Multilayer Packaging Material Suitable for Electrostatic Applications", discloses a multilayer packaging material suitable for antistatic applications. The multilayer structure includes at least one and static electricity Although the outer layer and a conductive core layer can prevent and remove static electricity to a certain extent, the structure is complex and the cost is very high

[0004] The Chinese patent application number is 200610008067.5, titled "an anti-static packaging material", which discloses an anti-static packaging material, which includes at least one conductive polymer layer. The conductive polymer layer is composed of carbon powder, polyurethane, additives and solvents. Although the material is simple, it also plays a certain role in preventing static electricity, but the anti-electromagnetic interference effect is poor, which restricts its application and promotion to a certain extent.