Products Made with . It has excellent mechanical properties such as high abrasion resistance, impact strength and low coefficient of friction. Thermoplastic materials become liquid at their melting poin, (155 degrees Celsius in the case of Polycarbonat). There is a potential that certain types of polycarbonate could be hazardous in food contact situations due to the release of Bisphenol A (BPA) during hydrolysis (degradation due to material contact with water)1. Compared with other polymers, the material has a relatively narrow temperature range, becoming brittle below -20°C and unusable in temperatures beyond 120°C. Usually, soaking the material in a 120°C oven for 2-4 hours is sufficient to bring the material within a recommended moisture range of 0.02%. heating causes thermoset materials to set (similar to a 2-part epoxy) resulting in a chemical change that cannot be reversed. While ordinarily clear, the material is available in a variety of translucent and opaque forms. Polycarbonates (PC) are one of the largest sales volume engineering thermoplastics. Extending the engineering resins’ performance by incorporation of less expensive polymers. You can view a full list of material manufacturers here. A few examples include the following: 3D printed models for high heat applications when. Descriptions . Providing means for recycling of industrial and/or municipal plastics waste. For this reason, clear surfaces such as a polycarbonate lenses in a pair of glasses will typically be coated with a scratch-resistant layer for protection. Polycarbonate is a polymer chain of bisphenol-A carbonate. PC for 3D printing is usually limited to a white color. See used to produce a variety of materials and are particularly useful when impact resistance and/or transparency are a product requirement (e.g. This is thanks in part to its outstanding impact resistance (250 times greater than that of glass) and its ability to … Table 1 below provides a summary of the physical properties of polycarbonate: This article presented a brief discussion of polycarbonate resins, including information on properties, applications, and chemical resistance. They are amorphous polymers that can be easily molded and thermoformed, and have many attractive properties. By using this site, you agree to our. For more information on other resins, consult our other guides or visit the Thomas Supplier Discovery Platform to locate potential sources of supply or view details on specific products. Stock shapes (sheet, rods, bars) are usually available in clear, black, and white. 1. Additives are often used to improve its resistance to UV light (although it is a good UV blocker), which can cause discoloration as in the fogging that occurs with some auto headlamps. The bottled-water industry long ago switched to polycarbonate for its larger bottles. Thomas uses cookies to ensure that we give you the best experience on our website. Polycarbonate (PC) plastics are a naturally transparent amorphous thermoplastic. A major useful attribute about thermoplastics is that they can be heated to their melting point, cooled, and reheated again without significant degradation. We only use the material list to inform visitors that we are experienced in processing these materials for many fine products. PC/ABS blends are also available for 3D printing on an FDM machine. Resistant to Stress Cracking; Good fatigue, Bearing & Wear Resistance; Adverse: They generally display poor formability properties It has desirable physical properties such as transparency, high toughness, and very good heat resistance. Also, you may want to use our Plastic Material Selection Guide or Interactive Thermoplastics Triangle to assist with the material selection process based on your application requirements. , we have used Polycarbonate in a number of applications across a range of industries. Product Applications . Injection moldable polycarbonate might include other additives such as mold release agents that lubricate the material during processing. hbspt.cta._relativeUrls=true;hbspt.cta.load(187731, 'dc0744bc-8b1e-496b-9983-e09280c8e37f', {"region":"na1"}); Polycarbonate is also an amorphous material, meaning that it does not exhibit the ordered characteristics of crystalline solids. Information about these thermoplastics and other thermosets may be found in our Types of Resins guide. PC is classified as a “thermoplastic” (, ), and the name has to do with the way the plastic responds to heat. Thomas Register® and SEMI-CRYSTALLINE THERMOPLASTICS: Typical characteristics are as follows: Good: They have good chemical resistance characteristics. in bullet-proof glass). The following diagram shows the relative impact strength of Polycarbonate when compared to the impact strength of other commonly used plastics such as ABS, Polystyrene (PS), or Nylon. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. It can typically be formed at room temperature without cracking or breaking, similar to aluminum sheet metal. 4. Some polycarbonates have additives such as “ultraviolet stabilizers” that protect the material from long-term exposure to the Sun. 2. in bullet-proof glass). Polycarbonates are manufactured by polymerization of bisphenol A (C15H16O2) and phosgene (COCl2). Most aromatic and halogenated solvents (toluene, benzene, gasoline, acetone) will cause, at the minimum, surface whitening and, likely, crystallization of the material; contact should be avoided. Although they are made commercially available in a variety of colors (perhaps translucent and perhaps not), the raw material allows for the internal transmission of light nearly in the same capacity as glass. Polycarbonate is stable at higher temperatures, making it useful for medical devices that must be steam-sterilized. Even at high temperatures, it is resistant to several solvents, except aromatic, halogenated hydrocarbons and strong oxidizing materials, such as nitric acid. Polycarbonate is ductile at room temperature and can be machined with traditional sawing, drilling, and milling tools. If you tried to heat a thermoset plastic to a high temperature a second time it would simply burn. To avoid improper resin selection, Contact PMC for additional help in determining the exact engineering resin required for your application. Another feature of polycarbonate is that it is very pliable. You might notice that clamshells, and many other plastic containers, come with a number inside a triangle of arrows. The main advantage of polycarbonate over other types of plastic is unbeatable strength combined with light weight. Polycarbonate, like other plastics, starts with the distillation of hydrocarbon fuels into lighter groups called “fractions” some of which are combined with other catalysts to produce plastics (typically via polymerization or polycondensation). The material may be purchased in sheets for thermoforming and general flatwork, in extruded shapes (rounds and bars) for machining, and in pellets for injection and extrusion molding. You can read about the process in more depth here. , however, there are BPA free polycarbonates that have become particularly marketable for applications involving perishable food or water. Regardless of the contradictory studies on the negative effects of BPA, certain types of Polycarbonate have been associated with its release. They are primarily sought for their unique combination of transparency, toughness, stiffness and temperature resistance. Improvement of specific properties. They are primarily marketed under the tradenames Lexan ® and Makrolon ®, but many other manufacturers produce the material. It is a lighter alternative to glass and a natural UV filter, so it is often used in eyewear. The Poisson's ratio for our polycarbonate is 0.37-0.38; Regulatory Code Compliance and Certifications: According to AZO Materials, polycarbonate was concurrently developed in the middle 20th century by GE in the United States and Bayer in Germany. PC is classified as a “thermoplastic” (as opposed to “thermoset”), and the name has to do with the way the plastic responds to heat. COVID-19 Response There are various mechanical properties to consider during the resin selection process, including: o Toughness (Impact Resistance) o Tensile & Compressive Strength (Load or Stress Bearing) o Flexural Strength (Bending Stiffness) o Dielectric Strength (Electrical Insulation) Finished p, Polycarbonate, like other plastics, starts with the distillation of hydrocarbon fuels into lighter groups called “fractions” some of which are combined with other catalysts to produce plastics (typically via polymerization or polycondensation). The first. This 1 through 7 numbering system is called a resin identification code. Address:  206 Camars Drive Warminster, PA, © 2016 to 2021 Creative Mechanisms - All Rights Reserved, Everything You Need To Know About Polycarbonate (PC), Polycarbonate (PC) plastics are a naturally transparent. PC/ABS blends are also available for 3D printing on an FDM machine. Material: Polycarbonate ( PC ) - Conductive Polycarbonate - Properties - Supplier Data by Goodfellow 10+ million models from leading OEMs, compatible with all major CAD software systems. Find and evaluate OEMs, Custom Manufacturers, Service Companies and Distributors. Stay up to date on industry news and trends, product announcements and the latest innovations. ico-arrow-default-right, Image credit: kamolwan Aimpongpaitoon/Shutterstock.com. What Are The Different Types of Polycarbonate? In the modern era it is manufactured by a large number of firms, each typically with their own production process and unique formula. Terms and Conditions, There is a potential that certain types of polycarbonate could be hazardous in food contact situations due to the release of Bisphenol A (BPA) during hydrolysis (degradation due to material contact with water), . Polycarbonate also has very good heat resistance and can be combined with flame retardant materials without significant material degradation. Because the material is a thermoplastic, polycarbonate can easily be heated or cooled multiple times without experiencing the effects of degradation. PC can be blended to enhance its properties: zPC/ABS blends exhibit high ductility and impact strength at temperatures below those of pure PC zPC tends to scratch easily, Silicone-polycarbonate copolymers can yield a hard thermoplastic that doesn’t get scratched. Please Note: PMC does not sell the material listed below. It is also available as a material for certain additive manufacturing processes, both in a pure form and alloyed with other polymers. The material is almost totally inert, therefore it is used in the most corrosive or aggressive environments at moderate temperatures. It’s insulating properties and notable heat and flame-resistance render it the ideal choice for projects that involve high fire risk or excessive heat. . Although deformation may be simpler with the application of heat, even small angle bends are possible without it. It serves as a useful material for guarding automated machinery, offering easy shaping, high clarity, and impact resistance. PC for 3D printing is usually limited to a white color. Polycarbonate (PC) plastics are a naturally transparent amorphous thermoplastic. The material may be solvent welded or adhesive bonded and may also be joined by mechanical fasteners such as rivets. Polycarbonate resins bring an attractive combination of properties Makrolon® and Apec® polycarbonate products from Covestro offer many attractive characteristics. exceeded 3.75 million tons in 2012. Makrolon® polycarbonate sheet is half the weight & 200 times stronger than glass and 30 times stronger than acrylic. For example, PCs have an exceptional high light transmittance and impact toughness as well Polycarbonate is used in many electrical and electronic devices, including housings, connectors, battery boxes, smartphones, optical media, etc. Now that we know what it is used for, let’s examine some of the key properties of Polycarbonate. There have been roughly 100 studies conducted on BPA and the results are somewhat controversial in that a correlation between funding source and risk assessment has been. PC+PET Resin Properties & Uses. to exist. Copyright© 2021 Thomas Publishing Company. Polycarbonate is an incredibly useful plastic for applications requiring transparency and high impact resistance. While acrylic is 17 percent stronger than glass, polycarbonate is nearly unbreakable. All Rights Reserved. COVID-19 Response: Source manufacturers & distributors providing COVID-19 medical supplies What are the Properties of Polycarbonate? In filament form, it is used for 3D printing. Resin . Polycarbonate has obvious applications for the transmission of light where the risk of impact is great: for example, automotive headlamps, security windows, motorcycle face shields and windscreens, prescription lenses, safety glasses, machinery guards, skylights, streetlamps, etc. Polycarbonate plastics are engineering plastics in that they are typically used for more capable, robust materials such as in impact resistant “glass-like” surfaces. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek Suits — Please let us know. Instead of burning, thermoplastics like Polycarbonate liquefy, which allows them to be easily, By contrast, thermoset plastics can only be heated once (typically during the injection molding process). Multiwall polycarbonate plays a vital role in the growing business of data center & server room construction, creating a hot aisle containment system that surrounds the rows of computer servers. There have been roughly 100 studies conducted on BPA and the results are somewhat controversial in that a correlation between funding source and risk assessment has been shown to exist. Polycarbonate sheeting is known throughout the world of architecture and construction as one of the strongest and most flexible materials on the market today. All About Polyamide Resins - Properties and Uses, All About Polyester Resins - Properties and Uses, All About Polyethylene Resins - Properties and Uses, All About Phenolic Resins - Properties and Uses, All About Epoxy Resins - Properties and Uses, All About Silicone Resins - Properties and Uses, All About Polypropylene Resins - Properties and Uses, Comparison of Thermoset Versus Thermoplastic Materials, The 7 Best Expanding Foam Products, According to 12,500+ Happy Reviewers, Top Plastics Manufacturers, Fabricators and Compounders in the USA, Lead-Generating Website Examples (And How To Build One), How to Make Your Procurement Processes More Sustainable, Wisconsin Aluminum Manufacturer Acquires Indiana Castings Maker, New EV Battery to Provide 300 Miles with a 5-minute Charge. By contrast, thermoset plastics can only be heated once (typically during the injection molding process). Polycarbonate thermoforms well, is easy to paint and bonds well using solvents and adhesives. Dimensional stability Excellent creep characteristics, dimentions remain almost unchanged by moisture, temperatures and duration conditions. Polycarbonates General Structure: Poly(bisphenol A carbonate) This index is organized alphabetically. *At standard state (at 25 °C (77 °F), 100 kPa), Properly engineer the designs for production. Codes . Privacy Statement and Company. Mechanical Properties of Plastic Materials Material Formula Abrasive resistance - ASTM D1044 mg/1000 cycles Coefficient of friction Compression set after 24 hr at 175C % Compressive modulus GPa Compressive strength MPa Elongation at break % Hardness - Rockwell Izod impact strengt h J m-1 Poisson's ratio Tear strength N mm-1 Tensile modulus A few examples include the following: clear tubes for sports equipment prototypes, clear molds for urethane and silicone casting, 3D printed models for high heat applications when ABS is not an option. However, due to low wear resistance, it should not be used on occlusal surfaces. and the 3D printer heats and deposits the filament into the desired 3D shape. 140 °C (284 °F) at 0.46 MPa (66 PSI) **, Topics: Thermoplastics differ in this way from thermosets, which undergo permanent change after hardening. This influences the way in which the material softens—gradually and over a wide temperature range, rather than suddenly, as in the case of crystalline polymers. It may also be sterilized with ethylene oxide and radiation through a limited number of cycles. Because Polycarbonate is a thermoplastic material, certain 3D printers are able to print with PC using the FDM process. PC is commonly used for plastic lenses in eyewear, in medical devices, automotive components, protective gear, greenhouses, Digital Disks (CDs, DVDs, and Blu-ray), and exterior lighting fixtures. This resin is commonly used in beverage bottles and Thomasnet Is A Registered Trademark Of Thomas Publishing Colors are usually limited to clear, white, and black. Covestro and SABIC Plastics are the two largest polycarbonate producers worldwide and together contribute over 44% of global capacity. If you tried to heat a thermoset plastic to a high temperature a second time it would simply burn. Recycled Content* Polyethylene Terephthalate (PET, PETE). Trade names include well known variants (or “resins”) like Lexa, . Polycarbonate (PC) resins are thermoplastic polymers, meaning they may be formed with heat and re-melted without losing their intrinsic characteristics. Polycarbonate is considered to be compatible with many mineral acids, alcohol, mild soaps, petroleum oils (but not some oil additives), silicone oils and greases, and low concentrations of alkalis. 2 Properties Polycarbonates are strong, stiff, hard, tough, transparent engineering thermoplastics that can maintain rigidity up to 140°C and toughness down to -20°C or special grades even lower. The following pie chart shows world consumption of polycarbonate resins: Prior to 2011, optical media was the largest consumer of polycarbonate resins. There has been some concern that BPA (bisphenol A) used in making polycarbonate could leach into foods; this has led to the development of BPA-free polycarbonates.
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