The mechanical properties of plastics can be dramatically altered by environmental conditions, and particularly by extreme temperatures. Use our interactive properties table below to explore by property group, sort, or compare two or more plastic materials. Coefficient of Linear Thermal Expansion : Degree to which a plastic changes size due temperature change. The main physical difference between the two is that one can be reused time and again, and the other cannot. For example, tensile properties of plastics such as plastic tensile strength and rigidity can be determined according to DIN EN ISO 527 by briefly applying load in one direction with a tensile test. It is easy to maintain plastic surface. Plastics are relatively new as building materials and their properties are very different from those of traditional ones such as concrete and metal. Plastics are materials made from long molecules (Polymers). Our common engineering plastic properties chart for engineers has been widely distributed over the years. Another key point is that some plastics do NOT have a yield point. Often a plastic being designed for a specific purpose will have desirable properties. • Covers more than 70 types of plastics, and summarizes the chemistry of each type. It offers great resistance to moisture, chemical and solvents. Plastics come from polymers, hence all plastics are polymers, but not all polymers are plastic. The book discusses materials engineering through properties formulation, combining part design and processing to produce final products. • The only "databook" available on the effects of temperature and humidity conditions on plastics and elastomers. When you want to apply any type of load on a particular member, you need to know its material properties, density, etc. Such properties can be investigated and compared between different products using standardised test methods. Colour: Some plastics are completely transparent. Main Characteristics and Properties of Polycarbonate Electrical Properties of Plastics. Variations may occur as far as cases and technical parts are concerned. Using pigments plastics of any attractive colour can be produced. properties of unreinforced and reinforced plastics in the form of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment, temperature, humidity, and For that, in this article, I am exploring the necessary properties of polymers in a detailed manner. » View all Commercially Available Polycarbonate Grades and Suppliers in Omnexus Plastics Database This plastic database is available to all, free of charge. The plasticity during production makes it possible for plastic to be moulded, extruded or pressed into solid objects of various shapes, making them an adaptable material for many different uses. They have a low melting point. High number indicates more growth when heated. Properties and Behaviour of Plastics. Electrical Insulation: The plastics possess excellent electrical insulating property. Different materials exhibit different working properties. Plastic, polymeric material that has the capability of being molded or shaped. Materials Properties of plastics. To request a quotation for any test email info@trl.com for a prompt reply ISO 604 testing examines the compressive properties of reinforced and unreinforced rigid plastics through a process of straining and loading the plastic at a … Some plastics may portray normally ductile behaviors, but when exposed to low temperatures may become brittle. Plastics may be amorphous solids, crystalline solids, or semicrystalline solids (crystallites) or any other form of solids. Chemical Properties of Plastic. Plastic - Plastic - The polymers: Polymers are chemical compounds whose molecules are very large, often resembling long chains made up of a seemingly endless series of interconnected links. Properties of Plastics as a Construction Material Each plastic material has its own peculiar properties to suit its particular uses. The plastic can be easily fixed in position. A simple, easy to understand visual reference point. The plastic properties on pages 222/223 are exclusively applicable for the specified standard test pieces. It is important to understand the conditions that a product may endure to ensure that those conditions are replicated during testing. Generally Plastics contain numerous chemical additives to refine their mechanical properties. 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 GPa Tensile strength MPa Cellulose Acetate … Introduction to Plastics Engineering provides a single reference covering the basics of polymer and plastics materials, and their properties, design, processing and applications in a practical way. Properties of plastics or polymers play a vital role in the field of Mechanical Engineering. Low Temperature Properties of Polymers Introduction Most plastics at room temperature show their familiar properties of flexibility (a low Young’s modulus) and high resistance to cracking but when the temperature decreases this can change rapidly and many common plastics become brittle with low failure stresses. 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