Polypropylene plastic foaming material (EPP) used in industry is composed of solid and gas phases. It is in black, pink or white particles, and the diameter is generally φ 2 ~ 7mm. The outer wall of EPP particles is closed and the interior is filled with gas. Generally, the solid phase composition accounts for only 2% ~ 10% of the total weight, and the rest is gas.
EPP has many advantages, such as good heat resistance, good dimensional stability, cushioning performance, low temperature characteristics, oil resistance, chemical resistance, 100% degradability, recyclability and so on. This kind of "small round bean" has penetrated into all aspects of our life.
Automotive application
With the development of automobile lightweight, material lightweight plays an important role in automobile weight reduction. EPP is a closed cell structure, which can fully absorb the dissipated energy and buffer the earthquake resistance; High stability and rapid recovery during deformation; Heat insulation, moisture-proof and noise reduction; Because of its extremely light weight and environmental protection, the application of EPP in automobiles is increasing year by year.
For example, foamed polypropylene materials are used in automobile bumper, automobile side shock core, automobile door shock core, advanced safety automobile seat, toolbox, trunk, armrest, bottom cushion plate, sunshade, instrument panel and other parts.
Packaging application
The EPP circulating heat preservation box has the characteristics of heat preservation, heat resistance, corrosion resistance and insulation. It is an environmentally friendly cold chain package that can be dispelled after heating. It is suitable for transporting food such as fruit, frozen meat, ice cream and so on, instead of foam boxes and partitions in traditional cold transportation.
In addition, as a buffer package, EPP can also protect fruits, refrigerators, ceramic products and other products that are easy to be "injured" during transportation.
The lightweight, antistatic, conductive and compressive cushioning properties of EPP products can minimize the electrostatic damage and collision damage of electronic products in the process of transfer or transportation.
Sports and leisure applications
EPP is a non-toxic, harmless and recyclable environmental protection material to avoid poisoning caused by children eating toys. Its products have moderate hardness and good flexibility. There is no need to worry about bumping or scratching. It gives children gentle protection, anti-skid and thermal insulation and changeable play experience. It is a new toy material for children. EPP has better seismic and energy absorption performance, and it is also more used to make child safety seats.
Post time: Apr-11-2022