Polyesters also offer low moisture absorption and have good flow properties. Printer friendly version pdf download download as pdf. It does not deform lose its shape, at the temperatures reached by its contents in microwaves domestic ovens. Pet is used in the packaging sector in the form of films, trays or bottles. Therefore, it is utilized in bottles for mineral water. Polyethylene terephthalate sometimes written poly ethylene terephthalate, commonly abbreviated pet, pete, or the obsolete petp or petp, is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, thermoforming for manufacturing, and in combination with glass. Some mechanical and thermal properties of pcabs blends. Plastics material data sheets sortable compare materials.
As might be expected, this higher crystallinity permits use at temperatures up to c degrees with somewhat better creep resistance below that temperature. Its crystallinity varies from amorphous to fairly high crystalline. Thermal and mechanical properties of recycled pet and its blends parthasarathy pattabiraman, dr. Polyvinyl chloride pvc physical and mechanical properties. Some swelling and a small reduction in mechanical likely. There is no ul file number available for ertalyte stock shapes. Pet after stretching still has properties of having a proper orientation, high stiffness, creep resistance, clarity, water vapor barrier, chemical and impact resistance. Zpetg physical properties metric english comments specific gravity 1.
Material creates dangerous slipping hazard on hard surfaces. Material safety data sheet high density polyethylene hdpe. Uv properties of plastics lawrence berkeley national. For hostile environments, peek is a high strength alternative to fluoropolymers. We continually strive to deliver online tools and technologies that enable our customers to make the best use of matwebs materials data. However, it sometimes happens that, locally, over short chain segments, pvc is syndiotactic and can assume the crystalline phase, but the percent shear fracture never exceeds 10 to 15 %.
May 26, 2003 polybutylene terephthalate pbt is a semicrystalline, white or offwhite polyester similar in both composition and properties to polyethylene terephthalate pet. Contact romacs engineering department at 18004269341 if you have questions about the. It is supplied in a range of colours and in transparent form. Chapter 6 mechanical properties university of tennessee. Polyethylene terephthalate polyester petp is a hard, stiff, strong, dimensionally stable material that absorbs very little water. Select the right material for your application by using our sortable material data sheets. For each property being compared, the top bar is pc and the bottom bar is pet. 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. Introduction often materials are subject to forces loads when they are used. Specific modulus cntex 700 800 specific tenacity cntex 36 70 80 density g. Curing times, pet particle sizes, and aggregate concentrations were varied.
For more specific values, follow the links immediately below. Mechanical engineers calculate those forces and material scientists how materials deform elongate, compress, twist or break as a function of applied load, time. Pdf the main objective of this study was to investigate the potential utilization of polyethylene terephthalate pet waste in cementitious matrix, as. Professional plastics cannot guarantee any material for your particular application. Impact resistance petg is less brittle than acrylic, and is a lower cost alternative to polycarbonate. Since 1996 matweb has been your premier source for free online material property data. This page displays only the text of a material data sheet. Polycarbonate pc polyethylene terephthalate pet, pete. Physical properties pet pete is a thermoplastic polymer and has good physical properties of strength, ductility, stiffness and hardness. Structural features and relaxation properties of petpc blends containing impact strength modifier and chain. To see matwebs complete data sheet for this material including material property data, metal compositions, material suppliers, etc, please click the button below. Mdi improves compatibility between pet and pc in pet pcppepdm ternary blends.
Thermal and mechanical properties of recycled pet and its. Pet is a clear, strong, and lightweight plastic that is widely used for packaging. Hardness is proportional to the tensile strengthbut. Low density polyethylene has less stiffness than the high density type. Overview of pet for schools listening paper pdf, 118 kb overview of pet for schools reading and writing paper pdf, 78 kb overview of. Physicalthermal properties mylar polyester film retains good physical properties over a wide temperature range 70 to 150c 94 to 302f, and it is also used at temperatures from 250 to 200c 418 to 392f when the physical requirements are not as demanding. Polyethylene terephthalate pet or pete is a generalpurpose thermoplastic polymer which belongs to the polyester family of polymers. Peek carries a v0 flammability rating and exhibits very low smoke and toxic gas emission when exposed to flame. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. Physical and chemical properties of waste from pet bottles. Polyethylene terephthalate, also known as pet or pete. Study the picture of the fruit packaging and microwavable meal tray. Structural features and relaxation properties of petpc.
Pet is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially conveniencesized soft drinks, juices and water. Typical reactions for chain assembling are polyaddition continuous or step wise and condensation polymerization polycondensation 1 figure 1. Overview of materials for polyethylene terephthalate pet matweb. Pet for schools exam report march 2009 pdf, 178 kb pet for schools exam report march 2010 pdf, 118 kb preliminary for schools exam report 2011 pdf, 167 kb example lessons plans from resources section. Mechanical properties of materials david roylance 2008. The wet process can be conveniently used for plastics such as. File hard introduction to materials science, chapter 6, mechanical properties of metals university of tennessee, dept. Contact romacs engineering department at 18004269341 if you have questions about the use of our products on hdpe pipe.
Engineering polyesters are engineering thermoplastics based on pbt polybutylene terephthalate and pet polyethylene terephthalate. Polyethylene terephthalate sometimes written poly ethylene terephthalate, commonly abbreviated pet, pete, or the obsolete petp or pet p, is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, thermoforming for manufacturing, and in combination with glass. It describes the properties of pet with respect to its effects on the. Properties with values for just one material, in this case are not shown. Typically, the highdensity material is more linear and consequently more crystalline. An introduction to pet pet also abbreviated pete is short for. Changes in the properties of matter physical and chemical. Pet pete is a thermoplastic polymer and has good physical properties of strength, ductility, stiffness and hardness. The facts about pet european federation of bottled waters. Pdf polyethylene maufacturing and its properties abdul.
Properties of waste polyethylene terephthalate pet periodica. The physical properties and chemical properties of matter chemistry. This monograph is intended to give the salient facts about pet as a food packaging material. Polyethylene terephthalate, polyethylene terephthalate shows high tensile and mechanical strength, hardness and toughness, low friction and a high dimensional stability.
What is the built up area requirement and cost for setting up a pet preform from pet resin business. Pet polyethylene terephthalate, semicrystalline is a strong, stiff engineering plastic with excellent machining characteristics, chemical resistance, and bearing and wear properties. What polymer is the most suitable for this type of packaging. This property data is a summary of similar materials in the matweb database for the category polyethylene terephthalate pet, unreinforced. Variations may occur as far as cases and technical parts are concerned. 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. There are 10 material properties with values for both materials. The compressive strength, compressive strain at yield point, and young modulus were determined. Some physical and thermal properties of mylar are summarized. It has good gas barrier properties and good chemical resistance except to alkalis which hydrolyse it. With such excellent material properties, pet is widely used today as a packaging.
Addition of mdi leads to higher values of the dynamic shear modulus for pet high elastic state in the. And unfilled peek is approved by the fda for food contact applications since 1998. Physical and chemical properties of waste from pet. Polybutylene terephthalate pbt properties and applications. Material pet polyethylene terephthalate pet has good barrier properties against oxygen and carbon dioxide. Pvc is an atactic polymer and therefore essentially uncrystallized. Thermal and mechanical properties of recycled pet and its blends.
It has somewhat lower strength and stiffness than polyethylene terephthalate, pet, is a little softer but has higher impact strength and very similar chemical resistance. Jun 25, 2003 polyethylene terephthalate polyester petp is a hard, stiff, strong, dimensionally stable material that absorbs very little water. Prof edward kosior, visy industries, melbourne, australia abstract this paper discusses the thermal and mechanical properties of virgin pet. An introduction to pet polyethylene terephthalatepet also abbreviated pete is short for polyethylene terephthalate, the chemical name for polyester. Igor sbarski, prof tom spurling, iris, swinburne university of technology, melbourne, australia adj. Material safety data sheet high density polyethylene. Due to its low weight and easy processing, trocraft eco is perfect for interior design, model making or product and industrial design. Polyester resins combine excellent mechanical, electrical and thermal properties with very good chemical resistance and dimensional stability. The graph bars on the material properties cards further below compare pet to. Concretes consisting of portland cement opc, silica sand, gravel, water, and recycled pet particles were developed.
Other applications include food trays for oven use, roasting bags, audiovideo tapes as well as mechanical components. Properties and applications of ldpe or low density polyethylene. Meltprocessable fep is also used as a protective coating on uv lamps for electronic fly killers, where the coating allows for excellent transmission only around 4% loss for a 0. Specimens without pet particles were prepared for comparison. Pdf properties of waste polyethylene terephthalate pet. Because of pets unique properties, it is rapidly becoming the worlds preferred. Any final design should be based on manufacturers or suppliers data for the material in question, and not on the data given here. The properties of pet include three common variations. It must be realised that many material properties such as toughness vary between wide limits depending on composition and previous treatment. Trocraft eco is an environmentallyfriendly material made from pure wood fiber. Morphological and material properties of polyethyleneterephthalate. The plastic properties on pages 222223 are exclusively applicable for the specified standard test pieces.
Trocraft eco is made from pure cellulose fiber, produced without additives, is fully biodegradable and is also emissionsfree. An introduction to pet polyethylene terephthalate pet also abbreviated pete is short for polyethylene terephthalate, the chemical name for polyester. Properties and applications of ldpe or low density. Thermoforming petg does not require drying prior to forming and has rapid thermoforming cycle times. Material safety data sheet high density polyethylene hdpe 1.
Click here to view some of the graphs of physical properties of the arnitetm range of engineering polyesters or click here to gain access to the dsm website in which you can download a pdf based brochure of the range of pbt and pet materials. What are the requirement of utilities and overheads for setting up a pet preform from pet resin plant. Ensure adequate ventilation, especially in confined areas. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical. Effects on mechanical properties of recycled pet in cement. 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 as well as their performance under a variety of actual use conditions and environments. Pet is often used for food processing machinery applications where low moisture absorption, low thermal expansion, resistance to staining, or resistance to. Properties of hdpe pipe limitations of romac products for use on hdpe pipe romac cannot warrant products used in applications that are outside one or more of these limitations. Pet for schools speaking test preparation pack candidate visuals worksheet 4 pdf, 493 kb exam reports. Typical properties only, not minimum or actual values.
What are the projected balance sheets of a pet preform from pet resin plant. Pet is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially conveniencesized. It is the customers sole responsibility to test materials to determine their suitability in their particular. The information and recommendations in this website are accurate and reliable to the best of our knowledge, however users should perform their own tests to determine the suitability of these products for their own particular purposes. Pet was obtained from shredding waste plastic bottles.
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