What are the main components of BOPP synthetic paper?

BOPP synthetic paper, also known as chemical film paper, plastic paper, polymer paper, imitation paper film, pearlite paper, etc., is a kind of polymer compounds as the main raw materials, through special treatment made of new paper. The main components of BOPP synthetic paper can be explained from the following aspects:

1. Basic raw materials

Polypropylene (polypropylene, PP) : The base material of BOPP synthetic paper is polypropylene, which is a polymer that is partially crystallized by polymerization of propylene monomer. Polypropylene is widely used in various plastic products because of its excellent physical and chemical properties, such as good mechanical strength, wear resistance, chemical corrosion resistance and thermal stability. In the production of BOPP synthetic paper, polypropylene, as the main component, provides a solid base performance for the synthetic paper.

2. Additives and modified materials

In order to improve the performance of BOPP synthetic paper, such as improving its flexibility, gloss, printing performance, etc., some functional additives and modified materials are usually added in the production process. These additives may include plasticizers, antistatic agents, lubricants, whitening agents, anti-adhesion agents, etc., their role is to improve the processing performance of synthetic paper, performance and appearance quality.

For example, plasticizers can increase the flexibility and plasticity of synthetic paper; Antistatic agent can prevent the synthetic paper from generating static electricity during use; Lubricants can improve the flow of synthetic paper during processing. Whitening agent can improve the whiteness and gloss of synthetic paper. The anti-adhesive can prevent the synthetic paper from sticking to each other when stacked or wound.

3. Special ingredients (such as pearlescent masterbatch)

For some special purpose BOPP synthetic paper, such as pearlescent paper, the main component will also include pearlescent masterbatch. Pearlescent masterbatch is composed of polypropylene and ultrafine calcium carbonate particles and other additives, which can give synthetic paper a unique pearlescent effect, making its appearance more beautiful and attractive.

4. Production process

The production process of BOPP synthetic paper is complex, including the preparation of raw materials, blending modification, extrusion molding, tensile orientation, surface treatment and other steps. In these steps, the selection of raw materials and the ratio of additives are crucial, and they directly affect the performance and quality of the final product.

In summary, the main component of BOPP synthetic paper is polypropylene, and may contain a variety of functional additives and modified materials, as well as special ingredients such as pearl masterbatch. These components work together to give BOPP synthetic paper excellent physical properties, processing properties and appearance quality, so that it is widely used in various fields.