This property of plasticity, often found in combination with other special properties such as low density, low electrical conductivity, transparency, and toughness, allows plastics. Materials data book 2003 edition cambridge university engineering department. Types of plastics pdfproperties of thermosetting plastics. The aim of this article is to give an overview about the plastic materials. Acetal is a very high tensile strength plastic with significant creep resistant properties that bridge the material properties gap between most plastics and metals. Selecting the right material for injection molding. Typical properties only, not minimum or actual values.
Plastic material properties table mechanical, physical, thermal. The energy needed to break a unit volume of material. For chemically resistant plastic, view our chemical resistance of plastics chart. Plastics are part of everyday life and contribute immensely to the benefit of humanity. An overview of the plastic material selection process for. Material selection a design guide lanxess energizing chemistry. It is the most fundamental activity in any civilization. While design and material selection are interrelated, we have chosen to discuss part and mold design in a separate manual, engineering plastics. This permanent deformation behavior occurs when the tensile or compressive uniaxial stress reaches y. For that, in this article, i am exploring the necessary properties. A comprehensive guide on high heat plastic polyphenylene sulfide pps is a highperformance, engineering thermoplastic characterized by an unusual combination of properties. Therefore a hookean material is linear elastic, and materials engineers use these descriptors interchangeably. This may force the industry to go for plastic materials by which the cost can be reduced to an extent.
The success of plastic as an engineering material will depends up on the selection of variety of plastic. The plastic properties on pages 222223 are exclusively applicable for the specified standard test pieces. Chapter 6 mechanical properties university of tennessee. Properties and uses of plastics as a construction material. Such a material iselastic accordingtothedescription ofelasticity given earlier immediate response,fullrecovery, andit is also linear in its relation between stress and strain or equivalently, force and deformation. Mechanical properties of plastic materials material formula abrasive resistance astm d1044 mg 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 m1 poissons ratio tear strength n mm1 tensile modulus. Bridging the gap between theory and practice, it enables. Mechanical properties and performance of materials samples of engineering materials are subjected to a wide variety of mechanical tests to measure their strength, elastic constants, and other material properties. It is the customers sole responsibility to test materials. Polyoxymethylene pom, also known as acetal, polyacetal, and polyformaldehyde, is an engineering thermoplastic used in precision parts requiring high stiffness, low friction, and excellent dimensional. Each plastic material has its own peculiar properties to suit its particular uses. If youre after basic information on plastic materials, this is the place to find it.
Ultimately, material selection must be based upon your prototype testing under actual, enduse conditions. Plastic, polymeric material that has the capability of being molded or shaped. Typical reactions for chain assembling are polyaddition continuous or step wise and condensation polymerization polycondensation 1 figure 1. Dynamics and statics we all have some intuitive idea about the mechanics of the world around us, an idea built up largely from our own experience. Several unfamiliar aspects of material behavior of plastic need to be. Properties of plastic materials combustibility test for plastics according to ul subject 94 the plastic materials are classified as follows. For chemically resistant plastic, view our chemical resistance of plastics. Properties of plastic materials combustibility test for plastics according to ul subject 94 the plastic materials. Hourston department of materials, loughborough university, uk this article is a revision of the third edition article 18. Manufacturing properties of engineering materials lecture notes prof. The properties of materials and their everyday uses children need to have experience of, and explore as many different materials substances as possible in order to make sense of their world.
Properties of plastics or polymers play a vital role in the field of mechanical engineering. Today, they are a ubiquitous and irreplaceable part of modern day life. Properties combined with excellent appearance, including the possibility of self coloring. Chemical resistant low to moderate mechanical properties. Temperature, cost, mechanical properties, electrical insulation, fda, chemical resistance. Easy descriptions of typical, physical, thermal, optical, electrical properties. The seventh edition of this classic reference work once more provides a comprehensive overview of commercially available plastics materials. Introduction to materials science, chapter 6, mechanical properties of metals university of tennessee, dept. The properties of materials and their everyday uses. Plastic material selection guide at curbell plastics author. Plastic type general properties common household uses polyethylene.
To minimize deformation, select a material with a large elastic modulus e or g. Curbell plastics supplier of high quality thermoplastic materials, technical assistance, custom plastic fabrication subject. It is also generally lightweight and strong and can be moulded into any shape of all sizes. Design with plastics asm international the materials. This document pdf may be used for research, teaching and private study purposes. Mechanical properties of plastic materials material formula abrasive resistance astm d1044 mg cycles coefficient of friction compression set after 24 hr at 175c % compressive modulus.
Plastic material properties table mechanical, physical. Different types of plastics and their classification the society of the plastics industry spi established a classification system in 1988 to allow. Greene, csu 7 medical plastics and composites use containers bottles, bags drug delivery iv bags, syringes tubing and tools for surgery implants, artificial skins the use of plastic materials. The growing number of thermo plastics with their combinations of physical and mechanical properties makes the proper material selection difficult. Plastic properties tables wear resistance of plastics open or close the rating that appears in this table refers to the wear properties of the material in a bearing or bush application, and is normally tested. The mechanical behavior of plastics is affected by the rate of straining of the material. We have also included a builtin comparison tool so that you can easily compare a selection of materials. Use our interactive properties table below to explore by property group, sort, or compare two or more plastic materials. But there are still concerns over the desired mechanical properties, biodegradability, sterilizability and radiopacity of the materials. When failures occur, they are due in part either to inferior properties resulting from poor design or badly controlled processing, or to an incomplete understanding of the properties and applications of plastics materials. It is transparent, flexible, resistant to water and electricity. Abs material data sheet physical properties metric english. Variations may occur as far as cases and technical parts are concerned. Plastic materials properties and applications birley.
Therefore a hookean material is linear elastic, and materials. These properties range from high temperature performance to dimensional stability and excellent electrical insulation properties. Abs material data sheet physical properties metric english comments density 1. Dislocations and plastic flow 5 fast fracture 6 statistics of fracture 6. The maximum permissible deviations from the nominal dimensions are listed in din 16742 tg6. Plastic is material consisting of any of a wide range of synthetic or semisynthetic organic compounds that are malleable and so can be molded into solid objects. When used unmodified for the manufacture of food contract articles, the product will comply with food additive regulations fda unspecified rating under the u. Chapter 3 material properties plastics pipe institute.
Plastic properties tables plastics technical properties. When you want to apply any type of load on a particular member, you need to know its material properties, density, etc. This table summarizes a wide variety of properties and characteristics for each material. It is known for high resistance to heat, abrasion, water, and chemical compounds. 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. Professional plastics cannot guarantee any material for your particular application. But there are still concerns over the desired mechanical properties, biodegradability, sterilizability and radiopacity of the materials used that need to be looked at in detail. Here youll learn the definition and properties of polymers, another name for plastics. Plastics material data sheets sortable compare materials. Polyacetal, also known as acetal or polyoxymethylene pom, is a formaldehydebased, semicrystalline engineering thermoplastic containing the functional group of a carbon bonded to two or groups. Background manufacturing is the process of converting some material into a part or product. Glass fibers and fillers have little or no effect on the following properties. The highest value of shear stress a material can withstand before plastic.
Trantina, design with plastics, materials selection and design, volume 20, asm handbook, asm international, 1997, pages 639 to 647 the key to any successful part development is the proper choice of material. Select the right material for your application by using our sortable material data sheets. Chapter 3 material properties 45 an additional objective of this chapter is the presentation of values for the major properties that are used for material classification and piping design, and a brief description of the methods based on which these properties are determined. Plastic has a number of properties that make it a highly useful material. Caused by the macromolecular structure and the temperaturedependent physical properties plastic materials are distinguished into different classes. Over the last several decades, thermoplastics have flour ished, replacing traditional materials such as glass, metal, and wood. Database includes comprehensive coverage of thermoplastic and. Plastic material properties are intended to represent the characteristic behavior of a plastic material during processing and in a product enduse environment. Plastics technology handbook plastics properties and testing. It caused a lot of interest as a plastic material that could be used to make high. Plasticity is the general property of all materials.
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