Increasing the density of plastics is a method to increase the relative density of raw resin, mainly by adding heavy filler and blending heavy resin.

Reducing the density of plastics means that the original relative density of plastics is reduced by appropriate means to meet the needs of different applications.The methods of reducing the density of plastics include foaming modification, adding light filler and blending light resin.

Characteristics of Fillers Required in Practical Application

The effect law of fillers on the properties of products

The functionality of fillers is that after adding fillers, polymer building materials can obtain properties that have not been done before or have strengthened and changed certain properties, such as electrical properties, barrier properties, optical properties, combustion properties, etc.

Plastic filling modification refers to the addition of non-metallic minerals, organic materials, metal powders and other fillers to pure resins to improve the properties of plastic resins, to achieve the required technical targets or to improve cost performance.

According to its shape, it can be divided into powder, globular, flake, columnar, needle-shaped and fibrous fillers.