How can polyolefin food packaging materials meet the needs of fast-paced and high-quality life?

With the development of the food industry and the improvement of living standards, people's consumption concepts have been upgraded, and new requirements have been put forward for food packaging materials

Recently, Xu Meng and others from Beijing Chemical Research Institute of China Petrochemical Corporation analyzed the properties and uses of different food packaging materials from the perspective of materials and processing methods, and analyzed the future development trend of polymer material technology for food packaging.

Properties and advantages and disadvantages of commonly used packaging polymer materials

PE film

PE is the most used polymer material in fresh packaging at present.

Table 1 Properties of different PE films

PP film

PP is also one of the earliest polymer materials used in the packaging field.

Similar to PE film, the manufacturing method and production process also have a great impact on the performance of PP film

Table 2 Properties of different PP films

The structure and properties of the PP film can also be changed by adding additives, such as adding α-type nucleating agent to improve the rigidity and stiffness of the film, and adding a transparent nucleating agent to improve the optical properties of the film.

PA film

Biaxially oriented polyamide film (BOPA) is a packaging material with good comprehensive properties

The emergence of new materials and new technologies has promoted the improvement and rapid development of the overall performance of food packaging materials.