Polymers used for the Manufacturing of the Security Seals – Polycarbonate

Due to their lightness, corrosion resistance, ease of processing, and...

Due to their lightness, corrosion resistance, ease of processing, and economy, polymers are
used in many areas of our daily lives, including engineering applications. Thanks to their
mechanical, electrical, magnetic and optical properties polymers replace other materials in a
variety of applications, especially in the energy storage, aerospace, defence and automotive
sectors.


Polymers are preferred in the production of security seals due to their resistance to extreme
temperatures, and their impact and abrasion resistance. Security seals produced
from polymers are light, inexpensive, easily produced, and display excellent chemical
resistance and high mechanical properties, as well as easy workability.

Polycarbonate

Polycarbonates are strong, rigid, tough, transparent engineering thermoplastics that can
maintain hardness up to 140°C and toughness down to -20°C. They are thermally resistant up
to 135°C and exhibit slow burning properties.
Polycarbonate continues to be one of the fastest growing engineering plastics discovering new
application areas. Global demand for the PC exceeds 1,5 million tonnes.

Properties of Polycarbonate in summary;

Hardness
Lightness
This feature, as a glass substitute, enables limitless design possibilities, enhanced efficiency by
lowering the quantity of material needed, decreased shipping and material costs, and contributes
to sustainability.
Wide range of thermal/mechanical properties
It is not only lightweight but also incredibly durable. A polycarbonate sheet, for
example, is 250 times stronger than a glass panel and is extremely resistant to fracture.
Toughness and impact resistance
Maintains its durability from -20 °C to 140 °C.
Transparency
PC is a very transparent plastic that, like glass, can transmit more than 90% of light.
Fine optical properties
Surface appearance
Compliance with the food regulations
High dimensional stability
High flexibility
Chemical Resistance
Polycarbonate shows proper chemical resistance to diluted acids, aliphatic
hydrocarbons and alcohols.

Thanks to the advantages mentioned above, polycarbonate is often used to make durable, longlasting consumer products.

Tablo 1: General Properties of Polycarbonate

PropertiesUnitTesting
Method
Value
Technical Name--Polycarbonate (PC)
Chemical Formula--
Recycling Code--
Specific Gravitygr/cm3ISO 11831.20
Tensile StrengthMPaISO 52759
Elongation at Break%ISO 52750-120
Impact Resistance(izod
notched)
Kj/m2ISO 18060-80
HardnessShore DISO 86890-95
Maximum continuous operating
temperature
-°C100-140

Fields of Use
• Medical Devices
• Glass Substitutes
• Telephone Booths
• Food Service Sets Especially for Air Passengers
• LED lamps

Figure 1: Polycarbonate usage areas

• Baby Bottles
• Safety Helmets
• In Car Headlight Sets
• Carboy Water Cans
• Eyeglass Lenses
• Security Seals

Figure 2: Security seals made using polycarbonate

Polycarbonate is one of the most widely used polymers in the production of security seals due
to its transparency, resistance to chemicals, good impact resistance, high dimensional
stability, glossy surface and food contact suitability.

REFERENCES

[1]-https://www.creativemechanisms.com/blog/everything-you-need-to-know-aboutpolycarbonate-pc
[2]- https://omnexus.specialchem.com/selection-guide/polycarbonate-pc-plastic
[3]- https://www.bpf.co.uk/plastipedia/polymers/Polycarbonate.aspx#history
[4]- Doç. Dr. Mehmet Arif Kaya Eğitim Notları (Educational Notes of Assoc. Dr. Mehmet
Arif Kaya

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Due to their lightness, corrosion resistance, ease of processing, and economy, polymers are
used in many areas of our daily lives, including engineering applications. Thanks to their
mechanical, electrical, magnetic and optical properties polymers replace other materials in a
variety of applications, especially in the energy storage, aerospace, defence and automotive
sectors.


Polymers are preferred in the production of security seals due to their resistance to extreme
temperatures, and their impact and abrasion resistance. Security seals produced
from polymers are light, inexpensive, easily produced, and display excellent chemical
resistance and high mechanical properties, as well as easy workability.

Polycarbonate

Polycarbonates are strong, rigid, tough, transparent engineering thermoplastics that can
maintain hardness up to 140°C and toughness down to -20°C. They are thermally resistant up
to 135°C and exhibit slow burning properties.
Polycarbonate continues to be one of the fastest growing engineering plastics discovering new
application areas. Global demand for the PC exceeds 1,5 million tonnes.

Properties of Polycarbonate in summary;

Hardness
Lightness
This feature, as a glass substitute, enables limitless design possibilities, enhanced efficiency by
lowering the quantity of material needed, decreased shipping and material costs, and contributes
to sustainability.
Wide range of thermal/mechanical properties
It is not only lightweight but also incredibly durable. A polycarbonate sheet, for
example, is 250 times stronger than a glass panel and is extremely resistant to fracture.
Toughness and impact resistance
Maintains its durability from -20 °C to 140 °C.
Transparency
PC is a very transparent plastic that, like glass, can transmit more than 90% of light.
Fine optical properties
Surface appearance
Compliance with the food regulations
High dimensional stability
High flexibility
Chemical Resistance
Polycarbonate shows proper chemical resistance to diluted acids, aliphatic
hydrocarbons and alcohols.

Thanks to the advantages mentioned above, polycarbonate is often used to make durable, longlasting consumer products.

Tablo 1: General Properties of Polycarbonate

PropertiesUnitTesting
Method
Value
Technical NamePolycarbonate (PC)
Chemical Formulascreenshot 1
Recycling Codescreenshot 2
Specific Gravitygr/cm3ISO 11831.20
Tensile StrengthMPaISO 52759
Elongation at Break%ISO 52750-120
Impact Resistance(izod
notched)
Kj/m2ISO 18060-80
HardnessShore DISO 86890-95
Maximum continuous operating
temperature
°C100-140

Fields of Use
• Medical Devices
• Glass Substitutes
• Telephone Booths
• Food Service Sets Especially for Air Passengers
• LED lamps

Figure 1: Polycarbonate usage areas

• Baby Bottles
• Safety Helmets
• In Car Headlight Sets
• Carboy Water Cans
• Eyeglass Lenses
• Security Seals

sayac muhurleri

Figure 2: Security seals made using polycarbonate

Polycarbonate is one of the most widely used polymers in the production of security seals due
to its transparency, resistance to chemicals, good impact resistance, high dimensional
stability, glossy surface and food contact suitability.

REFERENCES

[1]-https://www.creativemechanisms.com/blog/everything-you-need-to-know-aboutpolycarbonate-pc
[2]- https://omnexus.specialchem.com/selection-guide/polycarbonate-pc-plastic
[3]- https://www.bpf.co.uk/plastipedia/polymers/Polycarbonate.aspx#history
[4]- Doç. Dr. Mehmet Arif Kaya Eğitim Notları (Educational Notes of Assoc. Dr. Mehmet
Arif Kaya

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