Engineering sciences mechanical properties of rubber an overview al. Grades 6, 7 and 8 science middle school properties. For materials selection cases related to mechanical behavior, see slides 224 to 2210. Introduction to properties of materials linkedin slideshare. It is important to know the general outstanding properties of plastics to make best use of this an engineering material. Although the information and statements herein are believed to be accurate, no guarantee of their accuracy is made. There are certain words used for describing them and you need them in your vocabulary. Abs material data sheet physical properties metric english.
Any final design should be based on manufacturers or suppliers data for the material in question, and not on. There exists a fourth state that is not very common, called plasmatic state or plasma. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection. The material properties of moisture and dewatering should also be taken into consideration for the choice of matrix. Generally speaking,a composite is considered to be any multiphase material that exhibits a significant proportion of the properties of both constituent phases such that a better combination of properties is realized. Chemical, physical and mechanical property charts to compare our most popular plastics by their physical properties please reference our property comparison chart pdf.
Jun 03, 2015 introduction to properties of materials 1. Plastic materialsproperties and applications springerlink. Chapter 6 mechanical properties university of tennessee. Dec 16, 2015 mechanical properties of materials are strength, hardness, toughness, elasticity, plasticity, brittleness, ductility and malleability used to measure how metals behave under a load. The force is measured by a tensometer hardness resistance to wear and indentation tungsten carbide ball bearing is forced into the material. General material properties, such as density and ash content, are required for the allocation determination of plastic materials and they help in classifying the examination results. Plastics are nothing but synthetic organic high polymers. Physical and mechanical properties of materials melting temperature 9 density 10 youngs modulus 11 yield stress and tensile strength 12. Polystyrene is commonly recycled, but is difficult to do. Several unfamiliar aspects of material behavior of plastic need to be. The properties of different materials make them useful for different purposes. Gpa youngs modulus, e, is the slope of the initial, linearelastic part.
Grade count 3 mechanical properties hardness, rockwell r 103 112 103. Items such as disposable coffee cups, plastic food boxes, plastic cutlery and packing foam are made from ps. Although it floats, cork would not be a very good choice of material if you wished to build an oceangoing ship. Grade count 3 melt flow 18 23 g10 min 18 23 g10 min average 21. The physical properties and chemical properties of matter chemistry. It is strong, stiff, and inherently flame retardant with relatively good chemical resistance solvents are its. Lecture7 properties of materials mit opencourseware. Like most other plastics, acrylite ff sheet will expand and contract from.
Pdf recycled plastic material properties defined by. 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. The words that describe materials are their properties. Material properties typical physical mechanical thermal electrical optical all properties. This chapter provides a brief introduction to the range of materials that comprise the family of plastics. Issn 2348 7968 properties of frp materials for strengthening.
Material 46 tensile and fracture toughness properties 46 tests of large platetype specimens 56 leak tests 70 fracture toughness tests 74 conclusions 74 fatigue crack growth rate of thick 50830 plate at room and low temperaturesn. The plastic and packaging material used by okw are on the whole harmless and, apart from some exceptions, can easily be recycled and reutilized. Thanks for choosing material properties development process. Grades 6, 7 and 8 science middle school properties of. Many material properties can be determined from the results of a tensile test once the graph of force against displacement has been converted with equations1.
If umbrellas were made of lace fabric, we would get wet because its a permeable material. Manufacturing properties of engineering materials lecture notes. Get detailed technical information about abs polymer and know more about its key properties, limmitations, applications, processing. It is strong, stiff, and inherently flame retardant with relatively good chemical resistance solvents are its weak area, particularly stress cracking therein. It must be realised that many material properties such as toughness vary between wide limits depending on composition and previous treatment. Use our interactive properties table below to explore by property group, sort, or compare two or more plastic materials. The transverse modulus and strength, the shear properties and the properties in compression are the mechanical. Elastic deformation e is youngs modulusor modulus of elasticity, has the same units as. Introduction to materials science, chapter 6, mechanical properties of metals university of tennessee, dept.
The energy needed to break a unit volume of material. Tensile strength resistance to stretching and pulling specific size of material is stretched to failure. Chemical resistance chart uhmw molecular weight viscosity graph sds msds both imperial and metric property sheets are available below for all redco plastic products. A materials property or material property is an intensive property of some material, i. Abs material data sheet physical properties metric english comments density 1. Mechanical properties of engineering materials electrical4u. Experimental investigation of properties of polypropylene. Chapter outline mechanical properties of metals how do. Ahmet aran mfg prop v1 5 elastic modulus young modulus, e unit. A spring is an example of a onedimensional materialit resists or exerts force in one direction only. Several studies have been carried out to reuse scraptires in a variety of rubber and plastic products, incineration for production of electricity.
Classes of materials materials are grouped into categories or classes based on their chemical composition. In this paper, the task of study of mechanical properties and dependence of polypropylene is done on a commercial pp based nonwoven material using various experimental techniques to establish the influence of the properties fibers. Code 7 is used to designate miscellaneous types of plastic not defined by the other six codes. Properties of engineering materials each material has a property profile. The greatest stress that a material can endure without taking up some permanent set is called elastic limit point a. Aug 30, 2001 it is an amorphous commodity thermoplastic that can be colorless and transparent but is much more commonly pigmented. Uptodate material data sheets are also available on our website. The masterbatch was used as the parent matrix from which mixed polymer blends. We can develop new type of materials or we can extend life,properties and services of the. Therefore a hookean material is linear elastic, and materials engineers use these descriptors interchangeably. Unplasticised polyvinyl chloride unplasticised pvc upvc.
Dislocations and plastic flow 5 fast fracture 6 statistics of fracture 6 fatigue 7 creep 7 diffusion 8 heat flow 8 ii. Properties for some of the materials above represent a specific grade, formulation, specification, or brand including the following. Easy descriptions of typical, physical, thermal, optical, electrical properties. Introduction to materials science chapter 6, mechanical properties 22 hardness i hardness is a measure of the materials resistance to localized plastic deformation e. Bulletin of the transilvania university of bra sov vol. Mechanical properties of plastic materials professional plastics. Mechanical properties of materials are strength, hardness, toughness, elasticity, plasticity, brittleness, ductility and malleability used to measure how metals behave under a load.
Material selection is determined by the capabilities and qualities of materials, or their properties. Shear stiffness, longitudinal compressive strength, strain, failure, fatigue, impact is also very important features. Properties of materials a property of a material is a description of the characteristics which it has. We can develop new type of materials or we can extend life, properties and services of the material,there is vast scope in your subject. Nylon 66 technical properties data sheet the plastic shop. Chemical properties of engineering materials electrical4u. Plastic material properties table mechanical, physical, thermal. Chapter outline mechanical properties of metals how do metals. Changes in the properties of matter physical and chemical.
Its very important to define every property, including what the physical state solid, liquid or gas of a material is. The humidity and water absorption have a great influence on a. Several studies have been carried out to reuse scraptires in a variety of rubber and plastic products, incineration for production of electricity, or as fuel for cement kilns, as well as in asphalt concrete. For a quick, broad comparison, see table 31 on pages 4850. They are adjectives which tell us about the material. Properties of materials are characteristics of matter. It should also be noted that each plastic material has its own peculiar properties to suit the various uses. Resins that are produced without comonomer are called homopolymers. Material for injection molding was used plasticyl abs 1501 is a conductive masterbatch based on acrylonitrile butadiene styrene loaded with 15% of nanocyls mwcnts nc7000. Mechanical properties of materials free download as powerpoint presentation. Hence it is important to know the plastic flow properties of metals and alloys. Waterproof glass is waterproof could you make a good umbrella from glass. Chapter 3 material properties 47 chemical structure, which are reflected in certain differences in properties, such as density, ductility, hardness, etc. Pdf introduction of recycled plastic materials in structural applications such as bridges, retaining walls or railway sleepers requires a proper.
Lecture7 properties of materials last time types of systems and types of processes. 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. Many properties, such as melting point, boiling point, thermal conductivity and electrical conductivity of materials are governed by atomic bonding of materials. A material s property or material property is an intensive property of some material, i. The plastic response of material to tensile force is known as ductility and plastic response to compression force is known as malleability. For each, a description of its important properties is provided, along with some specific processing requirements and examples of products in which the polymer is used. Lets check if glasses were made of opaque plastic, we would not see anything. 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.
Grade count 3 mechanical properties hardness, rockwell r 103 112 103 112 average 110. This document pdf may be used for research, teaching and private study purposes. For chemically resistant plastic, view our chemical resistance of plastics chart. Acrylonitrile butadiene styrene, often abbreviated as abs, is an opaque engineering thermoplastic widely used in electronic housings, auto parts, consumer products, pipe fittings, lego toys and many more. Plastics technology handbook plastics properties and testing. Ideal for a variety of courses in materials science, properties of materials offers students a wideranging and introductory survey of this exciting field. This section discusses the major factors that affect the mechanical properties of plastic parts. The capacity of this machine is 10,000 pounds tension and compression. Typical reactions for chain assembling are polyaddition continuous or step wise and condensation polymerization polycondensation 1 figure 1. The plastic properties on pages 222223 are exclusively applicable for. Properties of materials properties of materials can be divided mainly into physical and chemical properties. Regardless of process type, the chemical process is the same. It uses an atomic and molecular approach to introduce the basic principles of materials science from the perspective of various propertiesoptical, thermal, electrical, magnetic, and mechanicalhighlighting the relationships among the.
Materials have different properties and characteristics depending on what they are used for. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection a property may be a constant or may be a. It is an amorphous commodity thermoplastic that can be colorless and transparent but is much more commonly pigmented. Material property combinations and ranges have been, and are yet being, extended by the development of composite materials. This permanent deformation behavior occurs when the tensile or compressive uniaxial stress reaches y. A volume of material can exert forces in all three directions simultaneously. Different loading conditions were considered to study the tensile properties of non woven fabric. The test is performed using a loading apparatus such as the tinius olsen machine. There was chosen 1, 2, 5 and 20 % weight ratio of carbon. Caused by the macromolecular structure and the temperaturedependent physical properties plastic materials are distinguished into different classes.
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