Polycarbonate or PC is a high-performance, hard, amorphous, transparent, thermoplastic polymer with organic groups. It is bonded together by carbonate groups (–O–(C=O)–O–) and combines properties It has a unique. PC polycarbonate is an engineered plastic that has the following properties: High impact strength High dimensional stability and good electrical properties. Polycarbonate uses are very important in various industries. This is one of the most important polymers used in global industries. In this PETROPROVIDERS article, join us to show you the uses of polycarbonate.

Introduction, properties, and characteristics of PC or polycarbonate

characteristics of PC

characteristics of PC

Polycarbonate is produced by the world’s largest companies such as SABIC and LG. In this paper, we fully introduce polycarbonate, polycarbonate structure, mechanical properties of polycarbonate, applications, and conditions of its forming processes.

Polycarbonate is a well-known ideal material that has many applications in various industries, and this is due to the suitable and wide properties of polycarbonate. We will talk more about the properties of polycarbonate polymer below.

High strength and impact resistance:

Polycarbonate, or PC, is a high-strength polymer that provides safety and comfort in applications that require high reliability and performance. This polymer has a density of 1.20 to 1.22 grams per cubic centimeter. In the study of polycarbonate uses, its properties are maintained up to 140 and -20 degrees Celsius; In addition, the PC is almost unbreakable.

Light transmission:

Polycarbonate is a transparent plastic that can transmit more than 90% of light.

Lightweight:

This feature of polycarbonate has led many artisans to consider replacing the glass with polycarbonate. This feature also increases the performance and efficiency of polycarbonate uses, easy installation, and reduces prices.

UV resistance:

Polycarbonate can provide 100% UV protection.

Optical properties:

Due to its amorphous structure, polycarbonate shows very good properties and its refractive index is 1.584.

Chemical resistance:

Polycarbonate has good chemical resistance to dilute acids, aliphatic hydrocarbons, and alcohols. This material has a suitable and moderate chemical resistance to oils and greases. Polycarbonate is weak against aromatic and halogenated hydrocarbons.

Thermal resistance:

Polycarbonates are thermally stable up to 140 ° C.

Advantages of using polycarbonate

  • High transparency, light-transmitting properties as well as glass
  • High strength even at -20 degrees Celsius
  • Stable mechanical properties up to 140 Celsius
  • It is inherently flame retardant
  • Suitable electrical insulation properties
  • Good abrasion resistance

Disadvantages of polycarbonate use

  • Weak against aromatic and open hydrocarbons
  • Exposed to water above 60 degrees does not last long
  • It needs to be dried before the process
  • Low fatigue resistance

Additives and polycarbonate alloy

The creep resistance of polycarbonate can be increased by adding glass fiber or carbon fiber to it. 5% to 40% of glass fibers are used in polycarbonate, which has been able to increase the creep resistance of polycarbonate to about 28 MPa. These reinforced polycarbonates also have a higher modulus and better tensile strength.

Additives such as flame retardant, UV stabilizer, heat, and color stabilizer can also be added to polycarbonate to improve these properties. Coated PCs also show better properties against atmospheric conditions and chemicals.

UV stabilizers such as benzotriazole-based additives, thermal stabilizers such as phosphorous esteric acids, and flame-retardant additives such as silicon-based and phosphorite-based additives are used in polycarbonate formulations.

Polycarbonate alloys:

Polycarbonate/polyester alloy is used for applications that require chemical resistance. For example, polycarbonate/polybutylene terephthalate (PC / PBT) alloys show even higher chemical resistance than PET / PC alloys; Because PBT has a higher crystalline behavior, it will give the PC a higher chemical resistance to PET.

PC / ABS alloy is used for applications that require high thermal resistance.

The most important polycarbonate uses in industries

Application of polycarbonate in home appliances:

Polycarbonate and its alloys are used for household appliances such as refrigerators, air conditioners, coffee machines, food mixers, washing machines, and hair dryers.

Polycarbonate uses in automobile and transportation:

Due to its transparency and lightweight, polycarbonate is used to reduce the weight of the car and improve its aerodynamic performance to create a beautiful and high-performance design. Also due to the high thermal resistance, it can be used in the headlight housing and other parts of the car.

Application of polycarbonate in the construction industry:

polycarbonate uses in the construction

polycarbonate uses in the construction

Polycarbonate can be a good alternative to glass in various applications in the construction industry.

Polycarbonate uses in consumer products:

Polycarbonate has high dimensional stability that can be used to make CDs / DVDs as well as glasses, eyeglasses, and even bulletproof windows.

Polycarbonate forming processes:

Polycarbonate is usually processed and shaped by one of the methods of extrusion, injection molding, blow molding, and thermoforming.

Polycarbonate usually requires high temperature and pressure for melting and injection. Before the process, it is recommended to dry for about 2 to 4 hours at a temperature of 120 degrees to reduce the humidity below 0.02% by weight.

To prevent degradation, the usual and optimal residence time of polycarbonate in forming machines is usually between 6 to 12 minutes.

Polycarbonate injection process:

As mentioned, injection molding or injection process is one of the most common methods of forming polycarbonate. Since polycarbonate has a high viscosity, the injection process temperature must be high to reduce this viscosity. In the injection process, the high-temperature molten polymer is injected into the mold by high pressure to form the final product.

Usually, the temperature of the polycarbonate melt for injection is 280 to 320 degrees Celsius, the mold temperature is 80 to 100 degrees and its shrinkage is 0.5 to 0.8 percent. These numbers are for pure polycarbonate.

Obviously, for the injection of filler-reinforced polycarbonate, the temperatures will be higher. Polycarbonate injection temperature is one of the most important parameters of injection process conditions.

Polycarbonate extrusion process:

The extrusion process is used to make polycarbonate pipes and profiles. Usually, the extruder temperature should be set in the range of 230 to 260 degrees Celsius and the extruder temperature with L / D is 20 to 25.

Summary of polycarbonate uses and its properties

Polycarbonate is the hardest transparent material that is used as a suitable alternative to glass in various parts of the building. Polycarbonate resin was developed by Dr. Daniel Fox at General Electric Plastics in 1953 and was first mass-marketed in 1958.

Various sheets were also produced and marketed in 1968. The structural diversity of polycarbonate sheets has made it possible to use them easily on any type of structure and near any type of building materials; Because of this, polycarbonate uses are very diverse in global industries.

What do you think about the PC and its applications? You can contact our experts to buy the best polymeric materials.


Are polycarbonates impact resistant?

Yes! These materials have high resistance due to carbonate and are considered resistant thermoplastics.

Is polycarbonate a type of plastic?

In general, polycarbonates are transparent thermoplastics that are produced in different colors.

Is PC plastic unbreakable?

This material has a very high resistance to pressure and impact. In addition, it is more than 30 times stronger than glass and acrylic.

Is polycarbonate metal or plastic?

It is a transparent thermoplastic material composed of carbonate monomers. PCs are used to produce durable plastics in the industry.