Ethan Clarke
Polycarbonate and plastic are both widely used synthetic materials with a variety of applications. Polycarbonate is an advanced form of plastic with superior properties, including greater strength and flexibility. When compared to polyethylene, a common type of plastic, polycarbonate has significantly higher tensile strength, making it more suitable for applications requiring durability. It also has a lower coefficient of thermal expansion, allowing it to withstand temperature changes better. Polycarbonate is more expensive than acrylic plastic but offers greater impact resistance and flexibility. Given its unique properties, polycarbonate is increasingly being used in place of conventional plastics in certain applications.
| Characteristics | Values |
|---|---|
| Tensile strength | Polycarbonate is 200 times stronger than polyethylene with a tensile strength of 70-80 Newtons per square millimeter |
| Weight | Polycarbonate is heavier than polyethylene, with a density of 1.20 grams per cubic centimeter |
| Thermal expansion | Polycarbonate has a thermal expansion coefficient of 0.0000065, which is more than 100 times smaller than polyethylene |
| Chemical resistance | Polycarbonate has good resistance to acids, alphatic hydrocarbons, and alcohol but poor resistance to alkalies and halogenated hydrocarbons |
| Flexibility | Polycarbonate is more flexible than acrylic plastic |
| Scratch resistance | Polycarbonate is more prone to scratches than acrylic plastic |
| Impact resistance | Polycarbonate has 250 times the impact resistance of glass and 30 times that of acrylic |
Explore related products
What You'll Learn
Polycarbonate is stronger and more flexible but scratches easily
Polycarbonate is a stronger and more flexible plastic than its counterparts, but it does have a major drawback: it scratches easily. Polycarbonate is 250 times stronger than standard glass and has 250 times the impact resistance of glass. It is also 30 times stronger than acrylic. Polycarbonate's tensile strength is between 70-80 Newtons per square millimeter, while both types of polyethylene have a tensile strength of 0.20-0.40 Newtons per square millimeter. This makes polycarbonate more than 200 times stronger than polyethylene.
Polycarbonate is ideal for highly demanding applications like bullet-resistant windows, and it offers a level of safety that no other clear glazing material can match. It is also well-suited to applications where the temperature changes. Polycarbonate has a thermal expansion coefficient of 0.0000065, which is more than one hundred times smaller than polyethylene.
Polycarbonate is also superior to acrylic in terms of resilience. Acrylic is more transparent and has a high-gloss finish, making it ideal for display cases, but it is more vulnerable to cracks. Acrylic is also easier to mould and is less expensive.
Polycarbonate is replacing the use of more common plastics in some applications due to its superior properties. It is renowned for its impact strength, toughness, and durability. It is also relatively inexpensive, but prices vary depending on weight and any extra properties.
Dog Ate Hard Plastic? Here's What to Do
You may want to see also
Explore related products
Polycarbonate is 250 times stronger than glass
Polycarbonate is a thermoplastic polymer that is 250 times stronger than glass. This property of polycarbonate makes it a preferred material for safety glazing, such as in protective goggles, machine guards, headlights for cars, and even in the cockpits of jet fighters. It is also used in bullet-resistant windows. Polycarbonate is a suitable alternative to glass because it is flexible, impact-resistant, and durable.
Polycarbonate is also a superior insulator to glass, which can result in lower energy costs. It is practically unbreakable and can withstand extreme weather conditions, making it ideal for greenhouses, bus shelters, schools, and hospitals. Its durability also makes it resistant to burglary and vandalism.
Polycarbonate is half the weight of comparably sized glass by volume. It is also six times lighter than glass, making installation quicker and easier. Its lightweight property, along with its strength, makes it a good choice for enclosures.
Polycarbonate is also temperature-resistant and can withstand extreme temperatures ranging from -40 degrees Celsius to 120 degrees Celsius. It can endure temperatures of 270 degrees Celsius for several hours at a time or sudden bursts of heat up to 1166 degrees Celsius without distortion, breakage, or absorption of heat. This makes it a good choice for products that need to be durable and able to withstand wear and tear.
Polycarbonate is also chemical-resistant. It has good resistance to acids, alphatic hydrocarbons, and alcohol but poor resistance to alkalies and halogenated hydrocarbons. Its maintenance is simple and can be done annually with a Vuplex Antistatic Cleaner.
Plastic Frames vs Rimless: Battle of the Lightweights
You may want to see also
Explore related products
Polycarbonate is more durable than polyethylene
Polycarbonate is a stronger and more durable alternative to polyethylene. Polycarbonate has a tensile strength of 70-80 Newtons per square millimeter, while polyethylene only has a tensile strength of 0.20-0.40 Newtons per square millimeter. This means that polycarbonate is more than 200 times stronger than polyethylene.
Polycarbonate is also more flexible than polyethylene. It has a thermal expansion coefficient of 0.0000065, which is more than 100 times smaller than that of polyethylene, which has a thermal expansion coefficient of 0.00010-0.00022. This makes polycarbonate well-suited for applications where temperature changes occur, as it expands less than polyethylene when heated.
Polycarbonate is also more impact-resistant than polyethylene. It has 250 times the impact resistance of standard glass, while acrylic plexiglass, which is made from polyethylene, only has 17 times the impact resistance of glass. This makes polycarbonate ideal for highly demanding applications such as bullet-resistant windows.
Polycarbonate is also more chemically resistant than polyethylene in certain environments. Polyethylene has excellent resistance to dilute acids, alkalies, and alcohols but poor resistance to hydrocarbons. Polycarbonate, on the other hand, has good resistance to acids, alphatic hydrocarbons, and alcohol but poor resistance to alkalies and halogenated hydrocarbons.
While polycarbonate has superior strength and durability compared to polyethylene, it is important to consider other factors when choosing between the two materials. Polycarbonate is more expensive and sensitive to scratches. Polyethylene is widely available and used in thousands of applications. The right choice depends on the specific requirements of the project.
Shuttlecock Showdown: Feather vs Plastic
You may want to see also
Explore related products
Polycarbonate is more resistant to heat than polyethylene
Polycarbonate is a stronger and more advanced plastic than polyethylene. It is 200 times stronger than polyethylene, with a tensile strength of 70-80 Newtons per square millimeter, compared to 0.20-0.40 Newtons per square millimeter for polyethylene. Polycarbonate is also more resistant to heat. It has a thermal expansion coefficient of 0.0000065, which is more than 100 times smaller than polyethylene's coefficient of 0.00010-0.00022. This means that polycarbonate is well-suited for applications where temperature changes are common.
Polycarbonate is a versatile and durable thermoplastic polymer known for its exceptional impact resistance and natural transparency. It is widely used in many industries due to its well-rounded mechanical properties. Polycarbonate is highly transparent, allowing for excellent light transmission, and is often used in applications where optical clarity is essential, such as eyeglass lenses and transparent protective shields. It is also used in bulletproof glass, safety goggles, and automotive headlight lenses due to its durability and impact resistance.
Polycarbonate has a limited resistance to high temperatures and is not inherently flame retardant. However, it can withstand high temperatures without melting or deforming. Its continuous use temperature range is 110-120°C, and it does not deform at 150°C without external force applied. The thermal decomposition temperature of polycarbonate is above 300°C, with a long-term working temperature of up to 120°C.
Polyethylene, on the other hand, is a lightweight and impact-resistant plastic commonly used in applications where chemical resistance and flexibility are more important than transparency, such as bottles, pipes, and liners. It has excellent resistance to dilute acids, alkalies, and alcohols but poor resistance to hydrocarbons. Polycarbonate, in comparison, has good resistance to acids, alphatic hydrocarbons, and alcohol but poor resistance to alkalies and halogenated hydrocarbons.
In summary, polycarbonate is a superior alternative to polyethylene in many applications due to its higher strength, heat resistance, and transparency. It is well-suited for demanding applications where durability, optical clarity, and resistance to heat are required.
The Allure of Glossy Plastics
You may want to see also
Explore related products
Polycarbonate is more chemically resistant than polyethylene
Polycarbonate is a popular alternative to common plastics due to its superior properties. It is renowned for its impact strength, toughness, and durability. Polycarbonate is 250 times stronger than standard glass and 30 times stronger than acrylic plastic. It is also stronger than polyethylene, which has a tensile strength between 0.20 and 0.40 Newtons per square millimeter, while polycarbonate has a tensile strength of 70-80 Newtons per square millimeter. This makes polycarbonate well-suited for applications requiring durable materials.
Polycarbonate is also denser than polyethylene. Polycarbonate has a density of 1.20 grams per cubic centimeter, while high-density polyethylene has a density of between 0.935 to 0.96 grams per cubic centimeter, and low-density polyethylene has a density of between 0.91 and 0.925 grams per cubic centimeter. This means that a thin lens made from polycarbonate would be heavier than one made from polyethylene.
Polycarbonate is also more chemically resistant than polyethylene. Polycarbonate has good resistance to acids, alphatic hydrocarbons, and alcohol, but poor resistance to alkalies and halogenated hydrocarbons. On the other hand, polyethylene has excellent resistance to dilute acids, alkalies, and alcohols but poor resistance to hydrocarbons. Therefore, the choice between the two materials depends on the specific chemical environment they will be exposed to.
Polycarbonate is also superior to polyethylene in terms of thermal expansion. Polycarbonate has a thermal expansion coefficient of 0.0000065, which is more than one hundred times smaller than polyethylene's coefficient of between 0.00010 and 0.00022. This means that polycarbonate is better suited for applications where temperature changes may occur, as it expands less than polyethylene when heated.
In summary, polycarbonate is a more advanced plastic than polyethylene due to its superior strength, durability, density, chemical resistance, and thermal expansion properties. It is well-suited for applications requiring durable, chemically resistant, and thermally stable materials. However, polyethylene may be preferred in certain situations due to its excellent resistance to dilute acids, alkalies, and alcohols, as well as its lighter weight and higher elasticity.
Hardening Laminated Plastics: Techniques for a Sturdy Finish
You may want to see also
Frequently asked questions
Polycarbonate is a type of plastic that is stronger and more flexible than other common plastics. It is also known as Lexan or Makrolon.
Polyethylene is one of the most popular plastic materials used. It comes in low-density (LDPE) and high-density (HDPE) variations.
Polycarbonate has a tensile strength of 70-80 Newtons per square millimeter, while polyethylene has a tensile strength between 0.20 and 0.40 Newtons per square millimeter. This means that polycarbonate is more than 200 times stronger than polyethylene.
Polycarbonate is well-suited to applications where the temperature changes due to its low coefficient of thermal expansion. It also has good resistance to acids, alphatic hydrocarbons, and alcohol.
Polyethylene has excellent resistance to dilute acids, alkalies, and alcohols, while polycarbonate has poor resistance to these substances. Polyethylene is also lighter and less expensive than polycarbonate.
