Alexei Volkov
Plexiglass, also known as acrylic, is a type of plastic with a wide range of applications. It is a transparent thermoplastic that is lightweight, shatter-resistant, and an excellent alternative to glass. With half the weight of glass and no optical distortion, plexiglass has been a sought-after material since its brand name Plexiglas was registered in 1933. In this article, we will delve into the unique properties of plexiglass, its production process, and the various applications that have made it a popular choice across different industries.
| Characteristics | Values |
|---|---|
| Chemical Name | Polymethyl methacrylate |
| Other Names | Poly(methyl methacrylate), PMMA, acrylic, acrylic glass, plexiglass, plexigum |
| Texture | Smooth |
| Transparency | Transparent |
| Durability | High |
| Impact Resistance | High |
| Weight | Lightweight |
| Shatter-Resistance | High |
| Malleability | Easily formed and shaped |
| Flexibility | Becomes flexible when heated |
| Machinability | Easily cut and drilled |
| UV Light Resistance | High |
| Weather Resistance | High |
| Recyclability | 100% recyclable |
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What You'll Learn
Plexiglass is a branded product from POLYVANTIS GmbH
Plexiglass, also known as acrylic, is a transparent thermoplastic that serves as a lightweight and shatter-resistant alternative to glass. It is made from polymethyl methacrylate (PMMA) or poly(methyl methacrylate). This plastic material combines the optical clarity of glass with exceptional strength and durability while being half the weight. The development of plexiglass can be traced back to the early 20th century when German chemist Otto Röhm first polymerized methyl methacrylate (MMA) in 1902. However, it wasn't until 1933 that Röhm and his company, Röhm & Haas AG, patented and registered the brand name Plexiglas®.
The brand name Plexiglas® is significant, as it guarantees a consistently high-quality product. The original Plexiglas® from POLYVANTIS GmbH stands out due to its quality, prominence, and availability. This commitment to excellence has led to its recognition as a "Brand of the Century" since 2007. The rigorous quality control measures in the production of plexiglass ensure that the finished sheets meet stringent standards for clarity, strength, and durability.
Plexiglass is produced through two main processes: cell casting and extrusion. While both methods result in a solid material with the desired characteristics of plexiglass, only the cell cast variety can be rightfully called Plexiglas®. The extrusion process involves heating the liquid material and feeding it between two rollers until the desired thickness is achieved. On the other hand, cell casting begins with creating a "syrup" mixture of methyl methacrylate (MMA) monomer and other additives.
The versatility of plexiglass is evident in its wide range of applications. It is used in illuminated stadium facades, gigantic aquariums, and spectacular pools. Additionally, it finds its way into everyday items such as high-quality furniture, kitchen back walls, smartphone displays, and car taillight covers. Plexiglass is also known for its scratch resistance and load-bearing capacity, making it a popular choice for display cases and shadow boxes in public areas. The impact resistance of plexiglass, though not as high as polycarbonate, is still significantly better than glass, making it suitable for various applications where durability and aesthetics are crucial.
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Acrylic and plexiglass are two names for the same material
Plexiglass and acrylic are two names for the same material. The chemical name for this material is polymethylmethacrylate (PMMA), and it was invented in the early 20th century by German chemist Otto Röhm. In 1902, he first polymerized methyl methacrylate (MMA), which formed the basis for what we now know as plexiglass. However, it wasn't until 1933 that Röhm and his company, Röhm & Haas AG, patented and registered the brand name Plexiglas®.
Plexiglass is a branded product from POLYVANTIS GmbH, and the brand guarantees reliable high quality. The name Plexiglas® is derived from PLEXIGUM, the existing name of the company's plastic resins and solutions. The product is so successful that the term "plexiglass" has entered the common vernacular. However, this has led to some confusion, as plexiglass is sometimes used incorrectly or placed in the wrong context.
Acrylic is a transparent thermoplastic used as a lightweight, shatter-resistant alternative to glass. It is typically used in sheet form to create products such as mirrors and plexiglass. Acrylic is also known for its glossiness and remarkable scratch and impact resistance. It is used in a wide range of applications, from lighting to aquariums, and is even used in place of glass in some cases due to its superior durability and lower weight.
The difference between the terms "acrylic" and "plexiglass" is based on the origins of the words. "Acrylic" comes from the chemical name for the material, while "plexiglass" comes from the trade name Plexiglas®. Other trade names for the same material include Lucite®, Acrylite®, and Perspex®. While there is no difference between plexiglass and acrylic, there is a distinction between these terms and Plexiglas®. Acrylic can be produced by cell casting or extrusion, and the terms plexiglass and acrylic are used interchangeably for materials manufactured by either of these processes. However, Plexiglas®, the trademarked material, is only made via cell casting, and an extruded acrylic would never be referred to as Plexiglas®.
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Plexiglass is made via cell casting or extrusion
Plexiglass, also known as acrylic or polymethylmethacrylate, is a type of plastic that can be produced through cell casting or extrusion. These two processes result in slightly different properties, with cell casting being more labour-intensive and expensive, while extrusion is a continuous manufacturing method that is generally more cost-effective.
Cell Casting
Cell casting involves creating a "syrup" mixture of methyl methacrylate (MMA) monomer and other additives. This syrup is then poured between two parallel tempered glass plates, separated by rubber gaskets to create a cell. The cell then undergoes a carefully controlled heat treatment in water baths, during which the liquid syrup transforms into a solid, glass-like sheet through a process called polymerization. Polymerization involves breaking the double bonds in the MMA molecules and forming new bonds that link the molecules in long chains, creating polymethyl methacrylate. Casting yields a harder, sturdier, and more chemically resistant product, making it suitable for applications involving fragrances, lotions, or other solvents.
Extrusion
Extrusion, on the other hand, is a continuous manufacturing process where acrylic monomers are heated and fed through barrels where the chemical reaction occurs. This results in a heterogeneous material with properties that may vary depending on the direction of extrusion. Extruded acrylic is softer, with a lower melting temperature, making it easier to laser cut, rout, and polish. It is also less susceptible to dirt, lint, or particulate contamination during the production process and is better suited for cementing and thermoforming due to its lower melting point.
While the terms "plexiglass" and "acrylic" are often used interchangeably, it is important to note that "Plexiglas®" is a branded and trademarked product from POLYVANTIS GmbH. Plexiglas® is specifically made through cell casting, and the brand guarantees high quality and meets special requirements.
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Plexiglass is known for its glossiness and scratch resistance
Plexiglass, also known as PLEXIGLAS®, is a branded acrylic product that was invented by Dr Otto Röhm and his research team at Röhm & Haas over 90 years ago. It is a high-grade, adaptable plastic that is widely used in a variety of applications due to its versatility and durability.
Plexiglass is well-known for its glossiness and scratch resistance, which makes it a popular choice for a range of products. Its scratch resistance is due to its high surface hardness, which is confirmed by the pencil hardness test. Plexiglass has a 5H hardness rating, which is six degrees higher than polycarbonate. This scratch resistance makes it ideal for use in furniture, exhibition booths, shopfitting, and photo glazing, as it can withstand intense stress without showing signs of wear and tear.
The scratch-resistant surface treatment of plexiglass provides excellent resistance against abrasion and chemicals. It is available with a high-gloss surface or as a matte surface that reduces reflections. The matte surface of plexiglass can also be polished to restore its glossy appearance, even if it has been scratched. This makes plexiglass a durable and long-lasting material that can withstand heavy use and frequent cleaning.
Plexiglass is also lightweight, shatter-resistant, and has high impact strength, making it a safer alternative to glass. It is used in a wide range of applications, including windows, display cases, illuminated stadium facades, aquariums, and car taillight covers. Its scratch resistance, combined with its other properties, makes plexiglass a versatile and sought-after material for many industries.
Overall, plexiglass is known for its glossiness and scratch resistance, which are key factors in its widespread use and popularity. Its durability, impact strength, and ability to withstand intense stress make it a superior alternative to glass and other plastics in many applications.
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Plexiglass is used in illuminated stadium facades and aquariums
Plexiglass, also known as acrylic, is a type of plastic that is well-known for its use in optical devices and products. It is a transparent thermoplastic that is lightweight and shatter-resistant. Acrylic is typically used in sheet form to create products such as mirrors and plexiglass. It is stronger, more impact-resistant, and easier to handle and process than glass.
Plexiglass is often used in illuminated stadium facades. For example, the Kinnick Stadium in Iowa City features a vertically and horizontally shingled ventilated facade combining custom fritted glass and fiber-cement panels. Stadium facades are designed to be aesthetically pleasing, and in some cases, they may incorporate lighting to enhance their appearance.
In addition to its use in stadiums, plexiglass is also commonly used in aquariums. It can be used as a divider or lid for fish tanks, providing a clear view of the aquatic life within. Plexiglass is a suitable material for aquariums because it is transparent, impact-resistant, and does not easily shatter.
Furthermore, plexiglass can be customized to meet specific requirements. For instance, it can be made UV-tolerant, bullet-resistant, or anti-static. These properties make plexiglass a versatile material for a variety of applications, including illuminated stadium facades and aquariums.
Overall, plexiglass is a durable and reliable plastic that is well-suited for use in illuminated stadium facades and aquariums due to its strength, transparency, and ease of customization.
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Frequently asked questions
Plexiglass is a type of plastic known for its glossiness, scratch and impact resistance, and optical clarity. It is made from polymethyl methacrylate (PMMA).
Plexiglass and acrylic are two names for the same material. The term plexiglass comes from the trade name Plexiglas®, while acrylic comes from the chemical name of the material, polymethylmethacrylate.
Plexiglass combines the clarity of glass with exceptional durability and lower weight. It is half the weight of glass and free of optical distortion. It can be made in various colours and forms, such as bullet-resistant, UV-tolerant, non-glare, and anti-static.
Plexiglass is used in a wide range of applications due to its versatility and durability. Some examples include illuminated stadium facades, aquariums, pools, high-quality furniture, smartphone displays, car taillight covers, and more.
