Polymers have for lengthy been a fundamental piece of our everyday lives a case in point that examples is found almost ubiquitously. We generally an impact leading us to think that polymers are only plastics used for packaging, in household objects as well as making fibres, however is the tip of the iceberg.

Polymers are used in all sorts of applications you will possibly not have thought much about. This web site enlightens you regarding the story behind polymers and the way it’s got evolved since for everyone several functions across a host of industries.
Origin of polymer science
Humans have advantage of the versatility of polymers for years and years by means of oils, tars, resins and gums. However, it wasn’t until the industrial revolution the polymer industry began to develop. The truth is, the birth of polymer science may be traced time for the mid-nineteenth century. From the 1830s, Charles Goodyear developed the vulcanization procedure that transformed the sticky latex of natural rubber in to a useful elastomer for tire use. In 1909, Leo Hendrik Baekeland designed a resin from two common chemicals, phenol and formaldehyde. The reaction between these chemicals paved the way to add mass to a resin, called Bakelite, named after him. It was this resin that served being a harbinger to a lot of of the common polymers that people use today. The term “polymer” hails from the Greek roots “poly” and “mer,” which assembled means “many parts.” Polymeric substances are comprised of many chemical units called monomers, which are joined together into large molecular chains comprising 1000s of atoms.
Classification of polymers
On the basis of their origin, pmma plastic may be viewed as synthetic or natural polymers. Natural polymers are the types polymers that appear in nature understanding that which are isolated from plant and animal resources. Starch, cellulose, proteins, natural rubber etc. are several samples of natural polymers. Though they are processed to get the end product, considering that the basic material comes from a natural source, these polymers are termed as natural polymers. Natural rubber via tree latex is basically a polymer made from isoprene units using a tiny proportion of impurities inside it.
With this context, biopolymers will also be significant. There exists large number of biopolymers for example polysaccharides, polyesters, and polyamides. They are naturally produced by microorganisms. The genetic manipulation of microorganisms makes means for enormous risk of the biotechnological manufacture of biopolymers with tailored properties ideal for high-value medical application for example tissue engineering and drug delivery.
Synthetic polymers, his or her name indicates, are synthesized within the laboratory or factory by way of a compilation of chemical reactions from low molecular weight compounds. From your functional perspective they could be classified into four main categories: thermoplastics, thermosets, elastomers and artificial fibres. Polymethyl methacrylate (PMMA) is but one such thermoplastic produced by the polymerization of the monomer, methyl methacrylate (MMA). PMMA is often called acrylic plastic and lends its properties to a variety of consumer product applications. Being both a thermoplastic and transparent plastic, acrylic is utilized extensively within the automotive industry in trunk release handles, master cylinder, and dashboard lighting. Consumer products which have a constituent portion of acrylic plastic include aquariums, motorcycle helmet lenses, paint, furniture, picture framing, and umbrella clamps, and others.
Many of the other synthetic polymers that people use within our everyday life include Nylons, utilized in fabrics and textiles, Teflon, utilized in non-stick pans and Polyvinyl Chloride, utilized in pipes.
As being a leading manufacturer of SUMIPEX® PMMA polymer, Sumitomo Chemical is happy to help you to understand its properties being a synthetic polymer. To learn more, get in touch with us here.
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Polycarbonate had earned the tag because the most appropriate material to use within the automotive industry. However, recently, Polymethyl Methacrylate, the PMMA polymer or commonly known acrylic plastic, has efficiently risen towards the growing demands in the automotive industry in replacing polycarbonate for the best important use within the, namely, automotive glazing.

Long established to use in many different vehicle applications such as decorative trim, ambient lighting and door entry strips, automotive glazing is one of those fields that supply the best growth prospect of PMMA.
Related key popular features of acrylic plastic which make it ideal for the entire process of automotive glazing are discussed below.
Light-weight
To generate a comparison on a erogenous level, PMMA is half the extra weight plus more transparent than glass, thereby providing magnificent visibility even during the situation of fluctuating and unstable temperatures. As a result of its molecular structure, thermoformed Acrylic Plastic are actually used almost just for car window glazing where all of the necessary requirements for light-weight materials which are safe, very easy to process and perform in every weathers are met.
At the top of Scratch Resistance
Another important requirement of glazing is scratch resistance. Standard PMMA already gets the highest surface hardness of all thermoplastics even when uncoated. However, for automotive glazing, you will find stringent conditions to be fulfilled to meet the ideal state of scratch resistance. The use of a coating is therefore mandatory. Considering that PMMA is intrinsically UV and also weathering-resistant, a single-step coating is useful. In comparison, thermoplastics that have low potential to deal with weathering need a two-step coating system. This brings about relatively expense for coating.
New design possibilities
PMMA glazing is Forty to fifty percent lighter than conventional glass, which piques the interest of automobile manufacturers. With the advantages being immediately obvious, PMMA has become known as the correct fit for automotive glazing. Weight savings apart, the transparency of acrylic plastic with its extremely high weathering resistance, pleasant acoustic properties, and exceptional form ability allow freedom enabling entirely new design possibilities.
Less anxiety birefringence
PMMA exhibits very little stress birefringence this also works as a major benefit over other thermoplastics such as polycarbonate, which was primarily employed for glazing in the past. Weighed against traditional materials such as polycarbonate, moulded PMMA, supplies a distinct possibility of functional integration – reducing recess depth and assembly costs.
Environment-friendly
The newest goal within the automotive companies are to produce clean low fuel consumption vehicles. In the awareness and also the requirement of eco-friendly initiatives in today’s general scheme of things, PMMA works as a perfect replacement for glass within the automotive glazing segment. As vehicle manufacturers push the bounds of design, also is automotive glazing evolving.
SUMIPEX® PMMA polymer offers characteristics that satisfy the latest challenges within the transportation sector. It’s a monumental challenge for auto makers that are looking to adjust to recent environmental requirements and are thinking about alternatives that reduce greenhouse gas and save fuel. It’s the perfect partner on this movement as it makes cars lighter.
Like a leading manufacturer of SUMIPEX® PMMA polymer, Sumitomo Chemical is satisfied to help you to understand its properties and just how it suitable to automotive glazing.
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Polycarbonate had earned the tag because the most appropriate material to use inside the automotive industry. However, these days, Polymethyl Methacrylate, the PMMA polymer or commonly known acrylic plastic, has efficiently risen to the growing demands with the automotive industry in replacing polycarbonate for the best important use within the, namely, automotive glazing.

Long established to use in many different vehicle applications such as decorative trim, ambient lighting and door entry strips, automotive glazing is one kind of those fields that provide the highest growth prospect of PMMA.
Related key top features of acrylic plastic which render it ideal for the entire process of automotive glazing are discussed below.
Lightweight
To generate a comparison with a very basic level, PMMA is half the body weight and more transparent than glass, thereby providing really clear visibility even just in true of fluctuating and unstable temperatures. As a result of its molecular structure, thermoformed polymer resin are now used almost only for car window glazing where all the necessary requirements for light-weight materials which can be safe, simple to process and perform in most weathers are met.
At the top of Scratch Resistance
Another essential desire for glazing is scratch resistance. Standard PMMA already gets the highest surface hardness of most thermoplastics regardless if uncoated. However, for automotive glazing, you’ll find stringent conditions being fulfilled to satisfy the perfect state of scratch resistance. The application of a coating is therefore mandatory. Since PMMA is intrinsically UV along with weathering-resistant, a single-step coating works well. On the other hand, thermoplastics which may have low effectiveness against weathering demand a two-step coating system. This leads to relatively high costs for coating.
New design possibilities
PMMA glazing is Forty to fifty percent lighter than conventional glass, which piques the eye of automobile manufacturers. With all the advantages being immediately obvious, PMMA has become seen as the proper fit for automotive glazing. Weight savings apart, the transparency of acrylic plastic in addition to its very high weathering resistance, pleasant acoustic properties, and exceptional form ability allow freedom enabling entirely new design possibilities.
Less stress birefringence
PMMA exhibits almost no stress birefringence and this works as a major benefit over other thermoplastics such as polycarbonate, that was primarily used for glazing previously. Weighed against traditional materials such as polycarbonate, moulded PMMA, offers a distinct possibility of functional integration – reducing recess depth and assembly costs.
Environment-friendly
The brand new goal inside the automotive companies are to produce clean low fuel consumption vehicles. Because of the awareness and also the dependence on eco-friendly initiatives with the current economic general scheme of things, PMMA works as a perfect option to glass inside the automotive glazing segment. As vehicle manufacturers push the bounds of design, so too is automotive glazing evolving.
SUMIPEX® PMMA polymer offers characteristics that satisfy the latest challenges inside the transportation sector. It’s a monumental challenge for auto makers that are looking for to sit in recent environmental requirements and therefore are considering alternatives that reduce greenhouse gas and save fuel. Oahu is the perfect partner with this movement since it makes cars lighter.
As a leading manufacturer of SUMIPEX® PMMA polymer, Sumitomo Chemical is glad to help you in understanding its properties and just how it best suited to automotive glazing.
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Just how do a liquid which includes just 5 carbon atoms, 2 oxygen atoms and 8 hydrogen atoms supply for robust purposes where thermal resistance, electrical resistance and mechanical strength is of prime importance? The answer lies in one word – “Polymerisation”.
Through this infographic, we trace the journey of MMA (Methyl Methacrylate), a liquid monomer that is polymerised to cause PMMA polymer (Polymethyl Methacrylate), and its particular various grades.

MMA could be polymerised to PMMA through solution polymerisation, emulsion polymerisation and bulk polymerisation techniques. All these reactions occur in the use of a catalyst. The resulting pmma polymer could be modified to numerous shapes, sizes and forms with regards to the additives.
The different grades of SUMIPEX®, the Polymethyl methacrylate resin created by Sumitomo Chemical, which might be obtained on adding additives are:
• ‘High Impact Grade of SUMIPEX® PMMA’ – Properties like high flow and good heat resistance get this suited to manufacturing extruded sheets/ pipes/ rods, construction materials, automotive parts and industrial applications
• ‘Extrusion Grade of SUMIPEX® PMMA’ – Good extrusion molding characteristics, high surface hardness, superb weatherability and ideal chemical resistance would be the properties of the grade that favour its utilization in extruded sheets/ pipes/ rods.
• ‘Heat Resistant Grades of SUMIPEX® PMMA’ – Excellent heat resistance, excellent surface hardness and mechanical strength enables the application of this grade in automotive parts for example tail lamp, instrument cluster, optical Lens, general lighting fixtures, etc.
• ‘Optical Grades of SUMIPEX® PMMA’ – With excellent heat resistance and flow properties, the optical grades with extremely low quantities of foreign contaminants bring light Guide panels and optical lenses.
• ‘High Flow Grade of SUMIPEX® PMMA’- With characteristics like high-flow during injection molding and good moldability, this grade is suggested for intricate parts and thin-wall parts molding for example watch and clock cover, lighting cover, name plate, house ware, etc.
• ‘General Purpose Grades of SUMIPEX® PMMA’ – General Purpose Grades determine contrast between normal and optical grades/special grades. General Purpose Grades like MH, LG, LG2, etc. are available under “Extrusion Grade”, “Heat Resistance Grade” and “High Flow Grade”. With balanced properties for example heat resistance and mechanical strength, this grade would work for making great deal of products for example house ware, stationery, telephone buttons, piano keys, electrical accessories, ornaments, etc.
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