Polycarbonate had earned the tag because the most appropriate material to be used in the automotive industry. However, these days, Polymethyl Methacrylate, the PMMA polymer or commonly known acrylic plastic, has efficiently risen for the growing demands with the automotive industry in replacing polycarbonate for the most important utilization in the market, namely, automotive glazing.
Long established to be used in a variety of vehicle applications for example decorative trim, ambient lighting and door entry strips, automotive glazing is among those fields that offer the best growth risk of PMMA.
Related key options that come with acrylic plastic which make it ideal for the whole process of automotive glazing are discussed below.
Light weight
To make a comparison over a erogenous level, PMMA is half the body weight plus much more transparent than glass, thereby providing superior visibility even during the truth of fluctuating and unstable temperatures. As a result of its molecular structure, thermoformed thermoplastic resin are actually used almost mainly for car window glazing where every one of the necessary requirements for light-weight materials which can be safe, very easy to process and perform in all weathers are met.
On top of Scratch Resistance
Another significant dependence on glazing is scratch resistance. Standard PMMA already has got the highest surface hardness coming from all thermoplastics even when uncoated. However, for automotive glazing, you will find stringent conditions to become fulfilled in order to meet the optimal condition of scratch resistance. The use of a coating is therefore mandatory. Given that PMMA is intrinsically UV and also weathering-resistant, a single-step coating is successful. On the other hand, thermoplastics who have low capacity weathering require a two-step coating system. This results in relatively expensive for coating.
New design possibilities
PMMA glazing is 40 to 50 percent lighter than conventional glass, which piques the eye of automobile manufacturers. With the advantages being immediately obvious, PMMA is now seen as the proper fit for automotive glazing. Weight savings apart, the transparency of acrylic plastic as well as its extremely high weathering resistance, pleasant acoustic properties, and exceptional form ability allow freedom enabling entirely new design possibilities.
Less anxiety birefringence
PMMA exhibits almost no stress birefringence this also works as a major benefit over other thermoplastics for example polycarbonate, which has been primarily useful for glazing in the past. Weighed against traditional materials for example polycarbonate, moulded PMMA, provides a distinct potential for functional integration – reducing recess depth and assembly costs.
Environment-friendly
The brand new goal in the automotive market is to develop clean low fuel consumption vehicles. Due to the awareness and the requirement for eco-friendly initiatives with the current economic scheme of things, PMMA works as a perfect option to glass in the automotive glazing segment. As vehicle manufacturers push the bounds of design, so too is automotive glazing evolving.
SUMIPEX® PMMA polymer offers characteristics that match the latest challenges in the transportation sector. It’s a monumental challenge for car makers looking to sit in recent environmental requirements and they are considering alternatives that reduce greenhouse gas and save fuel. It is the perfect partner in this movement given it can make cars lighter.
Being a leading manufacturer of SUMIPEX® PMMA polymer, Sumitomo Chemical is satisfied to help you out to understand its properties and just how it ideal to automotive glazing.
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