Polystyrene containers are used in various industries. In general, polystyrenes are used to make plastics. These materials are produced under special conditions and polystyrene production standards must be observed. Usually, polystyrene containers have a door and are tightly packed.

These materials are flexible and smell good. In addition, these materials have good resistance to impact and temperature changes. If you want to know more about polystyrenes, join us in this PetroProviders article to show you polystyrene containers.

Introducing polystyrene containers and their types

structure of polystyrene containers

structure of polystyrene containers

These containers are made of polystyrene. Polystyrene is a type of polymer made from styrene monomers. This monomer is extracted from oil and has interesting properties. In general, polystyrenes are white; But you can see different colors in different grades of PS. For example, you can paint and order your favorite for high Impact polystyrene!

In general, two different grades of polystyrene are used to make utensils. The first grade is high-impact polystyrene. This polystyrene, also known as HIPS, is usually white. It should be noted that you can order different designs of your favorite dishes.

The second grade is General Purpose polystyrene. This polystyrene, also known as GPPS, is much clearer than HIPS. This material is used to make transparent disposable containers such as small plastic plates. In the following, we will show you these two grades of polystyrene and their features and applications.

GPPS polystyrene containers

These dishes are also known as crystals in global markets. These dishes are transparent and look like glass, But they are not glass! These containers have high strength against pressure and impact. It should be noted that GPPS is not used to make unbreakable plastic containers. This material is not very strong against shocks and breaks easily.

In general, GPPS is used to make liquid containers. These containers are transparent and easily show the color and contents of the liquid. In addition, GPPS is used to make salad dishes. These containers are less harmful than other plastic containers.

HIPS polystyrene containers

These polystyrene containers are known in global markets as HIPS. These materials are stronger than GPPS. In general, HIPS containers are used to produce impact-resistant containers. These materials are less transparent than GPPS, but they are more resistant to various pressures and shocks.

The color of HIPS is usually white. This material is used to make disposable materials and plastics produced with HIPS have good strength. To order HIPS-colored containers, white containers are combined with special colors to produce the desired color.

In general, one of the most important applications of HIPS polystyrene containers is their use for dairy packaging. These dishes are opaque and have high resistance. In addition, HIPS is used to make packaging containers for liquids and juices.

Foam polystyrene containers

Unlike HIPS and GPPS containers, these containers are very impact-resistant. In general, these containers are used to make hot food packaging. It should be noted that this feature in these polystyrene containers has made foam polystyrene popular.

Production methods of polystyrene containers

PS Packaging

PS Packaging

HIPS and GPPS polystyrene containers are not much different! The raw material of these polystyrenes is the same. The only difference between GPPS and HIPS is the combination of HIPS with butadiene. It contains 5 to 10% butadiene, which makes it more resistant and opaque.

There are two very suitable methods for producing polystyrene containers. Semi-forming method and thermoforming method.

Introducing the semi-forming method for the production of disposable containers

In this method, the process of shaping and producing dishes is done by a machine. This device first converts polystyrene material into granular form. These granules are produced in the extrusion line. The machine then melts these granules and, after heating the granules, enters them into the mold. After the molten polystyrene enters the mold, the molding process is performed to produce the best plastics.

Using this method, disposable plastic containers are produced very quickly. Of course, it should be noted that HIPS and GPPS polystyrenes can be produced in this way.

Thermoforming method for the production of disposable containers

This method is more advanced than the semi-forming method! Thermoforming is a recently popular way to shape polystyrene containers. In this method, two devices are used; The first machine converts polystyrene granules into PS sheets. It then rolls these sheets. The second machine, also known as a thermoforming press, heats the sheets produced inside the furnaces. This causes these materials to become the desired shape.

Summary of reviews of polystyrene containers

In this article, we looked at polystyrene containers. Disposable tableware is usually produced in 3 types. GPPS disposable tableware, HIPS disposable tableware, and foam disposable tableware. These dishes have special features and have various uses.

The methods of producing disposable tableware are very interesting! In the semi-forming method, only one machine converts polystyrenes into granules and then molds them to produce disposable containers. In the thermoforming method, two devices start working; The first machine converts the granules into sheets and the second machine heats the sheets to their desired shape.

What do you think about polystyrene containers? In the comments section, you can ask us your questions about polystyrene and PS containers. You can contact our experts to buy the best disposable tableware.