Packaging materials lead the show

Today's packaging has penetrated into every corner of our lives, and almost all products are packaged. With the rapid development of the packaging industry, packaging has grown from a single paper, plastic, cloth, etc., into a variety of material packaging, flexible packaging, hard packaging and other forms. Other industries have also put forward various new requirements for packaging. In order to adapt to users and strive for a larger market, various new types of packaging materials are also emerging.
New types of plastics and alloys have been developed in China. Polysulfones, polyphenylene sulfides, polyether ether esters, polyimides, and polyarylates are used in product packaging. Foreign polycarbonates, polyesters (PETs), polyamides, and polyoxymethylene (POM) still dominate the mainstream, among which polycarbonate is the fastest growing. In foreign countries, PBT (polybutylene terephthalate) and PET alloys have developed rapidly. These two materials have the advantages of high strength and low mass and can be used to manufacture special high-strength packaging containers. In the United States, PET alloys have also been used in packaging because they perform better than pure PET in many respects.
Special fiber packaging There are a large variety of modern fibers. Fibers with different chemical structures influence the strength of synthetic fibers to a large extent. In order to enhance or improve the strength and function of the fiber, the use of a ray treatment process can greatly increase its strength. High-functional fiber materials such as wholly aromatic polyesters, high-polymerization PE, fluorine-based resins, and POM have also been gradually applied to special synthetic fibers. Conductive fibers and magnetically conductive fiber composite plastics (films) are also widely used, mainly used in anti-static, electromagnetic and other sensitive packaging containers and packaging materials.
Organic optoelectronic materials Photoelectron organic polymer materials newly developed varieties are: organic photochromic polymer materials, nonlinear optical materials, photorefractive materials, polarizing polymer materials, selective light-transmitting polymer materials, photoelectric conversion functional materials, piezoelectric Functional polymer materials and so on. Non-linear optical polymers, gradient refractive index polymers (such as methyl phenylenoates, vinyl benzoates, etc.) have also made great progress. Therefore, organic optoelectronic materials have great potential for application in special packaging.
The resin-based composite material has a wide variety of polymer composite materials in which a variety of fibers, granules or films are compounded using a resin as a matrix. Such as the addition of conductive fibers composite into conductive functional materials, wave absorbing functional materials, adding ceramics, glass fiber and carbon fiber composite reinforced plastic, or different resin film multilayer composite composite materials, etc., its application is very wide. There are more than 30 kinds of fibers in the reinforced fiber composite type. In the packaging has been widely used mainly laminated composite, coextrusion composite, mixed and reused types of composite materials.
Surface modification materials There are various types of modern modification materials, including metals, non-metals, ceramics, plastics, and multi-component composites. The surface modification of new materials used in the packaging industry is relatively more. For example, in order to improve the condensation performance of packaging plastic films, vacuum vapor deposition technology is used to 'coat' a very thin aluminum film and silicon oxide film on the plastic surface; the plastic film is processed by laser scanning; and chromate is used. Passivation technology surface modification of electrolytic iron foil, strengthen material properties.
In summary, some high-tech materials have been used in the packaging field, some are showing their way in the packaging world, or they have a lot of potential for development. With the advancement of science and technology, people are increasingly demanding packaging. Packaging in the 21st century must be the world of high-tech materials.