Plastic properties tables plastics technical properties. The graph bars on the material properties cards below compare unfilled pet to. The tensile and flexural strength of compatibilized rpetpp are dependent on the kinds of compatibilizers. The results of experimental investigation of mechanical properties in tension of polyethylene pe and polyethylene terephthalate pet blends are reported. This paper discusses the thermal and mechanical properties of virgin pet,recycled pet and their blends. Properties of materials we shall concern ourselves with three types of issues. Additional properties, such as specific gravity, water absorption, and natural carbonation depth, can be found else where because. Polyethylene terephthalate or pet is a polymer that finds extensive application in wideranging areas. Unlike other types of plastics, polyethylene terephthalate is considered safe and is represented on water bottles with the number 1, indicating it is a safe option. These plastics are a type of thermoplastic polymer resin, useful in various applications including in synthetic fiber. Arnite pbt, pet, and blends are highperformance engineering plastics that combine high strength and rigidity with excellent processing characteristics. Overview of materials for polyethylene terephthalate pet matweb. We studied mechanical and chemical recycling processes and.
Main characteristics and properties of polycarbonate pc is an ideal material well known and widely used in the industry for its versatile characteristics, ecofriendly processing and recyclability. Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. Pdf the main objective of this study was to investigate the potential utilization of polyethylene terephthalate pet waste in cementitious matrix, as. Differential scanning calorimetry dsc and thermogravimetric analysis tga were used to study the thermal properties. Bhowmick encyclopedia of life support systems eolss 9 k g e 3k g. A high melting point enables pet p to retain significantly more of its original strength than nylon or acetal, making it suitable for the manufacture of precision mechanical parts. Mechanical properties of recycled pet fibers in concrete.
The relative impact strength fig 4a is reduced by the addition of filler. Studies on degradation of pet in mechanical recycling. Mechanical properties of concrete using recycled plastic. Properties for some of the materials above represent a specific grade, formulation, specification, or brand including the following. Polyester is a category of polymer whose monomer contains the ester functional group. This set of properties makes pet of huge importance to the packaging industry.
Printer friendly version pdf download download as pdf excel download download to excel. Pdf mechanical properties of recycled pet fibers in. The results of mechanical testings indicate that there is only slight loss in mechanical properties. The results suggest that mechanical recycling is a suitable method for recycling of pet for economic and environmental purposes. Data about using plastic as aggregate were provided only for some of properties. Approximate estimation of the weight ratio of pgma or tta modified on rgo from tga results part ii. 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.
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. Other mechanical properties that are less affected by the pet fibers, such as the compressive and tensile strengths and the modulus of elasticity, are also discussed. Polyester fiber pet physical properties of polyester. Pet is a thermoplastic, further classified as a polyester plastic. 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.
Also, the mechanical properties are very important in the case of thermoplastic polymers, mostly the tensile strength important for their performance under stress and tensile modulus the resistance of polymers to elastic deformation 12,2431. Pdf mechanical properties of recycled pet fibers in concrete. Mechanical properties of goincorporated petst2000 blends with different loadings of go components part iii. Polyethylene terephthalate pet or pete is a generalpurpose thermoplastic polymer which belongs to the polyester family of polymers. This property data is a summary of similar materials in the matweb database for the category petg copolyester. The article describes the influence of thee microstructure and environment conditions on the mechanical properties of pet material. The mechanical properties of pet fiber reinforced concrete. Polyethylene terephthalate an overview sciencedirect topics. Mechanical properties mechanical properties are useful to estimate how parts will behave when they are subjected to mechanical loads forces, moments etc.
Addition of ppgma improved the tensile and flexural. The main thermoplastic polymers and their properties are presented in table1. Polyethylene terephthalate polyester petp is a hard, stiff, strong, dimensionally stable material that absorbs very little water. Engineering properties of polyethylene introduction a fundamental understanding of material characteristics is an inherent part of the design process for any piping system. Ertalyte tx petp is an unreinforced, semicrystalline thermoplastic polymer based on the polyethylene terephthalate petp. The most common polyester for fiber purposes is poly ethylene terephthalate, or simply pet. In this research, the mechanical properties that were measured are compressive strength, splitting tensile strength and modulus of elasticity moe following british. Its low moisture absorption enables mechanical and electrical properties to remain virtually unaffected by moisture. Thermal and mechanical properties of recycled pet and its blends. Pet is a ubiquitous material in modern life which is used in diverse applications from drink bottles and film to shirts and fabrics. With such an understanding, the piping designer can use the properties of. Effectiveness of compatibilizer on mechanical properties. A brief introduction of pet is given in this report, concentrating on the following aspects.
May 26, 2003 polybutylene terephthalate pbt is a semicrystalline, white or offwhite polyester similar in both composition and properties to polyethylene terephthalate pet. The mechanical properties of pet fiber reinforced concrete from recycled bottle wastes article pdf available in advanced materials research 795. However, increasing filler content from 20% to 40% did not influence the values. Mechanical properties of solid polymers have been discussed in terms of two approaches. Effectiveness of compatibilizer on mechanical properties of. Typical reactions for chain assembling are polyaddition continuous or step wise and condensation polymerization polycondensation 1 figure 1. It has the lowest strength and highest ductility compared to the other variants of pet. Igor sbarski, prof tom spurling, iris, swinburne university of technology, melbourne, australia adj. The tensile tests at ambient and elevated temperature were used to study the mechanical properties. This pet polyester also offers excellent sliding and wear properties, and a low coefficent of friction.
It can have the lowest heat capacity among the polyester plastics in the database. The properties of pet include three common variations. With such an understanding, the piping designer can use the properties of the material to design for optimum performance. Thermal degradation and mechanical properties of pet blends. For environmental reasons, recycling of postconsumer polyester bottles into textile fibers has become commercially attractive. Unesco eolss sample chapters materials science and engineering vol.
Moreover, the crystallinity of composites fibers was also increased with an increasing of hbpet content. Pet is one of the most recycled thermoplastic, and has. The aim of this study is to produce recycled materials with high static mechanical performances and impact strengths using the postconsumer pet bottles by blending waste pet with waste bottle caps, labels and compatibilizers. The effect of pet fibres geometries on the mechanical properties of concrete is also studied and results show that change in pet fibres geometry from flat surface to crimped and deformed surface. Overview of materials for petg copolyester categories. As a result, arnite a pet and arnite t pbt are well suited for a broad. Reinforcement of recycled pet for mechanical properties of. Thermal and mechanical properties of recycled pet and its. Methods of recycling, properties and applications of recycled.
Impact resistance petg is less brittle than acrylic, and is a lower cost alternative to polycarbonate. Reinforcement of recycled pet for mechanical properties of isotactic. Green concrete composite produced from polyethylene terephthalate pet fibers may be considered an important issue in sustainable construction. Thermal and mechanical properties of recycled pet and its blends parthasarathy pattabiraman, dr. Polybutylene terephthalate pbt properties and applications. Petp in general is known to have the best dimensional stability, excellent wear resistance, a low coefficient of friction, high strength and rigidity, excellent stain resistance, good chemical and abrasion resistance. Plastic material properties table mechanical, physical. Main characteristics and properties of polycarbonate pc is an ideal material well known and widely used in the industry for its versatile characteristics, eco. Thermal degradation and mechanical properties of pet. Methods of recycling, properties and applications of. 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 using a pinondisc wear test. The effect of injection molding temperature on the morphology. Jun 25, 2003 polyethylene terephthalate polyester petp is a hard, stiff, strong, dimensionally stable material that absorbs very little water.
Mechanical properties and the longterm degradation properties of the recycled pet yarns are typically lower than the virgin pet yarns due to the contaminants coming from nonpet bottles, labels and caps etc. Pdf the mechanical properties of pet fiber reinforced. Properties of recycled poly ethylene terephthalate pet. Mechanical properties of concrete using recycled plastic submitted by. 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. Polyethylene terephthalate pet is a semicrystalline thermoplastic polymer with high toughness, and good physical and chemical properties. An introduction to pet polyethylene terephthalatepet also abbreviated pete is short for polyethylene terephthalate, the chemical name for polyester. Pdf mechanical properties and impact behavior of pet fiber. Effects of recycling processes on physical, mechanical and. Its outstanding mechanical and optical properties give bioriented pet bopet films widespread uses in the packaging industry for conditioning numerous varieties of food products. Mechanical properties of polyethylene and poly ethylene.
The incorporation of nanofillers in pet imparts significant enhancements to its properties such as mechanical strength, permeability, electrical conductivity, and thermal stability, among others. The effect of injection molding temperature on the. Mohammed arafa a thesis submitted in partial fulfillment of the requirement for the. The improvement in mechanical properties may be due to the increase of orientation of fiber molecules. Mylar product information 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. Lower sizes and concentrations of pet particle create less space in the concrete, and in consequence the compressive strength and the compression strain increase and youngs modulus decreases when the size of pet particles used was increased. Thermoforming petg does not require drying prior to forming and has rapid thermoforming cycle times. 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. Structural features and relaxation properties of petpc blends. It was found that mechanical properties of the rpet0. Therefore, the behavior of selfcompacting concrete scc slabs containing pet fibers under impact loads.
Mechanical blending of virgin polymer with recycled pet was studied. Polyethylene terephthalate an overview sciencedirect. Tecapet pet polyester from ensinger is specially formulated to provide improved toughness, and enhanced machinability. Pdf mechanical properties and impact behavior of pet.
As expected, mechanical properties of the concrete depend on the pet particle size and its concentration. This is also the polymer used for many soft drink bottles and it is becoming increasingly common to recycle them after use by remelting the pet and extruding it as fiber. Each property range of values reported is minimum and maximum values of appropriate matweb entries. Pet plastics are some of the more commonly discussed plastics when searching for solutions for drinking water. It can be seen that the tensile and flexural strength of rpet is decreased by adding of various compatibilizers and their mixture, and the damage degree of mechanical properties of rpet is evagma poegma ppgma. Mechanical properties of rpet blends with different compatibilizers and their mixture are shown in fig. Prof edward kosior, visy industries, melbourne, australia abstract this paper discusses the thermal and mechanical properties of virgin pet.
The processability of such films is improved in particular by antiblocking particles embedded in. Material properties typical physical mechanical thermal electrical optical all properties. High performance polyester compounds pet, pbt and blends, combining excellent flow with good mechanical strength. Its crystallinity varies from amorphous to fairly high crystalline. The effect of theamount s and types of compatibilizerson properties of recycled rpet blends was investigated. Pet is a clear, strong, and lightweight plastic that is widely used for packaging foods and beverages, especially conveniencesized soft drinks, juices and water. The tensile strength, youngs modulus and elongation at break were. Time dependence of morphology and mechanical properties. From the microscopic point of view, mechanical and thermal properties of pet material have the biggest influence on orientation and crystallization processes of material. The morphological analyses on these filled pet blends confirmed that the surface chemical structure of go had a crucial impact on the mechanical property of the blend. A high melting point enables petp to retain significantly more of its original strength than nylon or acetal, making it suitable for the manufacture of precision mechanical parts. Pet bottles, one of the waste plastic types, is used in this. For more specific values, follow the links immediately below.
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