High density polyethylene hdpe sheet is designed to be used in the manufacturing and food processing industry as it is moisture, stain, and odor resistant. Overview of materials for high density polyethylene hdpe, injection molded. High density polyethylene plastic is most commonly known and referred to as hdpe sheet plastic. All plastics are polymers but not all polymers are plastics. Kuzeyboru hdpe pipe weight table, also known as kuzeyboru polyethylene pipe is performed by multiplying the hdpe pressure pipe density by the hollow cylinderic volume account and determining the hdpe pipe weight. Polyethylene physical properties in relation to polymer density. Although ldpe and hdpe are both thermoplastic ethylene polymers, they differ in several properties and uses. High density polyethylene, of which hdpe sheets are made of, is a polyethylene thermoplastic that is generated from petroleum.
During the mixing process, we add a minimum of 2% and a maximum of 5% of the uv inhibitor, carbon black. Ads pipe is engineered to exceed all the aashto lrfd structural design requirements for earth and live loads. Incompatibility may react or be incompatible with oxidizing materials. Coupled with low coefficient of friction and ease of fabrication, hdpe high density polyethylene is widely used in automotive, leisure and industrial applications and is particularly suitable for the fabrication of tanks, silos, hoppers etc. This document provides the cell classification and respective material properties in accordance with astm d3350. Due to heat treatment during the pe 100 pipe production phase, it shows the expansion characteristic. Highdensity polyethylene hdpe or polyethylene highdensity pehd is a thermoplastic polymer produced from the monomer ethylene. Includes performance characteristics, brands, and typical properties. Fire fighting measures flammability may be combustible at high temperature. Hdpe bimodal pe4710 pipe resin black characteristics outstanding high temperature creep rupture strength outstanding slow crack growth resistance excellent resistance to rapid crack propagation nsf certified for astm d25 gas, csa b7.
Items that are in stock are typically shipped within 24 hours. One stark contrast is that ldpe has more branching than hdpe. High density polyethylene hdpe sheets a member of the polyolefin family, polyethylene hdpe is recognized as being extremely environmentallyfriendly. Hdpe s toughness and flexibility enable it to withstand deep fill heights and extended live loads. Ignition temperature cloud 790 f 420 c minimum radiant flux for ignition 20 kwm2. In fact, using hdpe pipes contributes to leed credits if you are using leed certified standards for building. Alteration or republication of this document in whole or part is strictly prohibited.
Mechanical properties of high density polyethylenechromium. High density polyethylene hdpe plastic bottles are a popular packaging choice for the milk and fresh juice markets. Properties and applications of hdpe or high density. Hdpe resins are manufactured as odorless white pellets or granules. In terms of what code to use i think there is no specific answer, so what ive done is i check both using simple manual calculation based from manufacturers catalogue and also perform beam element analysis and tweak some numbers i already forget how i. In practical terms, this means hdpe pipe shrinks 10 times as much as di and 3. M60075 is a high density polyethylene hdpe grade suitable for injection moulding applications where good mechanical properties are essential with gloss, dimensional stability, good escr, required for technical mouldings like moulded crates, luggage shells, helmets. Mechanical properties of high density polyethylene. Pdf mechanical properties of high density polyethylenemodified. Choose file properties, click the description tab, and then click additional metadata. Section properties for both, corrugated polyethylene and corrugated polypropylene pipes are presented. Hdpe advantages for water some distinctive advantages of hdpe pipe that provide important bene.
Resin properties 1 typical value astm method polyethylene. The hdpe material did not change, but the astm d3350 cell classification that described the material did change, necessitating the upgrade to pe3608. The properties given below are for hdpe grades used to manufacture pipe. Polyethylene is a combustible substance but under normal housekeeping conditions there is no risk of ignition. Polyethylene, including hdpe sheets, requires few natural resources to produce, generates minimal waste products, and is widely recycled. This data sheet provides typical properties for performance pipe piping products. Overview of materials for high density polyethylene hdpe. Pdf polyethylene maufacturing and its properties abdul. Our product specialists have the knowledge and experience to provide highdensity polyethylene pipe and fittings solutions for engineers, designers, contractors and technicians nationwide. This is a pdf file of an unedited manuscript that has been accepted for publication. Product safety assessment high density polyethylene hdpe. Hdpe provides a whole host of benefits to manufacturers, retailers and consumers. Key properties inherent with hdpe toe in happens when hdpe is cut which can alter the ability of any sleeve or saddle to seal and affect the installation of stiffeners. Plastic properties of high density polyethylene hdpe a linear polymer, high density polyethylene hdpe is prepared from ethylene by a catalytic process.
Material properties, backfill criteria, and load conditions also factor into the procedure. On the other hand, the quality of hdpe resin remains constant. There are 5 material properties with values for both materials. Rheological and thermal behavior of highdensity polyethylene hdpe at. As requested by the pipe manufacturers representatives, a test installation was chosen and two culverts were installed at the miramar landfill site in san diego, california. Coefficient of thermal expansion is over 10 times that of di and steel and 3 times that of pvc. Organic solvents, gasoline, and lubricants may react with and degrade polyethylene. To save the metadata to an external file, click save and name the file. The files will be publicly downloadable or emailed, and i do not want any user of any os windows, mac, linux. Properties with values for just one material 19, in this case are not shown. Material safety data sheet high density polyethylene hdpe 1. With a high strengthtodensity ratio, hdpe is used in the production of plastic bottles, corrosionresistant piping, geomembranes and plastic lumber. History and physical chemistry of hdpe atoms, and consequently, the greater the molecular weight.
Hdpe resin properties table hdpe plastic injection. Pdf mechanical and morphological properties of high density. How are hdpe high density polyethylene and ldpe low density polyethylene different. Contact romacs engineering department at 18004269341 if you have questions about the use of our products on hdpe pipe. Before using this product, the user is advised and cautioned to make their own determination and assessment of the safety and suitability of the product for the specific use in question and is further advised against relying on the information contained herein as. Physical property data for hdpe polyethylene pipe table 2 for data, sizes, or classes not re. Other common polyethylene pe materials are mediumdensity polyethylene mdpe. Linear low density polyethylene lldpe refers to low density type polymer with a density between about. Among the rheological properties, viscosity is one of the most commonly utilized parameters in the study of polymeric material behavior during processing, once the majority of transformation processes occur in shear flows. In practical terms, this means hdpe pipe shrinks 10 times as much as di and 3 times as. Frequently in the piping industry, it is referred to as alkathene. Highdensity polyethylene black gas 5 physical properties table 2 lists general physical properties of jm eagle highdensity polyethylene pipe. Depending on the type of corrugated hdpe pipe and the product standard, our mixtures may vary.
Polyethylene is a lightweight, durable thermoplastic with variable crystalline structure. Thermophysical properties of high density polyethylene. The flow properties of viscoelastic fluids depend on temperature, strain rate and observation time. High density polyethylene hdpe sheets grafix plastics. The graph bars on the material properties cards further below compare hdpe to. Printer friendly version pdf download download as pdf excel download. For each property being compared, the top bar is hdpe and the bottom bar is ldpe. Unless otherwise stated, these values represent averages taken from injection moulding samples. The mechanical characteristics and properties of hope gipes are highly affected by the environmental conditions. In the present work, rheological properties of hdpe samples were measured at temperatures of 150. A definitive quality guarantee is given in our generalconditions of sales.
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. It is used extensively in many fields, including agricultural and foodpacking films. The quality controller qc carries out tests on the mixture to verify if it is. Engineering properties of polyethylene introduction a fundamental understanding of material characteristics is an inherent part of the design process for any piping system. The density of hdpe can range from 930 to 970 kgm 3. Properties of hdpe pipe high density polyethylene pipe hdpe has several properties that make it very different from traditional water works pipe materials. The files have to be jpeg, png, pdf documents or for 3dprinting stp, stl, ipt. Materials jm eagle hdpe water pipe is manufactured with premi. It not easily ignites but in contact with a flame it becomes soft, flows, ignites and. In this investigation the influence of temperature.
Those same changes encompassed the addition of pe4710 high performance polyethylene hppe into the arsenal of. Highdensity polyethylene is a plastic made from ethane. This thermoplastic is made from a string of ethylene molecules hence, the poly part of polyethylene, and is known for being both lightweight and strong. The absence of branching results in a more closely packed structure with a higher density and somewhat higher chemical resistance than ldpe. With more and more companies embracing sustainability initiatives, hdpe sheet popularity has. Branching takes place during polymerisation, where polymer chains have secondary polymer chains attached to them through replacing an atom in the primary chain with a monomer. Akatherm hdpe properties 3 akatherm hdpe properties. By colouring with 2% of carbon black the pe gets its black colour. It was shown, by oscillatory tests, at low frequencies, that, for tempera. The nominal properties reported herein are typical of the product but do not reflect normal testing variance and therefore should not be used for specification purposes. Properties of hdpe can be further manipulated by the addition of organic or inorganic particles into the polymer matrix. Rheological and thermal behavior of highdensity polyethylene.
Hdpe high density polyethylene after its experimental preparation in the 1930s, the application in high frequency radar cables during world war ii, gave impetus to its commercial production. Without doubt, the workhorse of construction plastics is high density polyethylene hdpe. The molecular weight, the molecular weight distribution and the amount of branching determine many of the mechanical and chemical properties of the end product. Cellulose, for example, is a polymer, but it cannot be processed like a plastic material unless it is modified. You have the option of attaching files to your message.
With such an understanding, the piping designer can use the properties of. Rheological and thermal behavior of highdensity polyethylene hdpe. This book bridges the meaning of engineering enduse parameters of polyethylene resins hdpe, ldpe, lldpe, vldpe and their molecular characteristics. The temperature effects on high density polyethylene hdpe pipes. In prac tical terms, this means hdpe pipe shrinks 10 times as.
Pdf polyblend films were prepared from highdensity polyethylene hdpe and polyllactic acid plla up to 20% plla by the melt. With such an understanding, the piping designer can use the properties of the material to design for optimum performance. It is sometimes called alkathene or polythene when used for hdpe pipes. Polyethylene pipeline systems avoiding the pitfalls of. Hdpe is a ubiquitous material with versatile properties and is widely used due to its mechanical strength, low cost, excellent biocompatibility, easy process ability and resistance to chemical and biological attack.
High density polyethylene hdpe is a thermoplastic material which is. Polyethylene is used in applications ranging for films, tubes, plastic parts, laminates, etc. Hdpe is known for its high strengthtodensity ratio. And the company that has led the development of hdpe for drainage products is advanced drainage systems, inc.
For more specific values, follow the links immediately below. Low density polyethylene ldpe high degree of short and long chain branching density 30. This thermoplastic is available in a range of flexibilities depending on the production process. Akatherm hdpe properties 3 akatherm hdpe properties polyethylene, pe for short, is a semi crystalline thermoplastic and is a generic term for different kinds of pe. Hdpe can be translucent or opaque, and the opaque varieties are stronger. Highdensity polyethylene products are very safe and are not known to transmit any chemicals into foods or drinks. Pdf high density polyethylene hdpecalcium silicate cs composites containing vinyltriethoxysilane treated calcium silicate contents varying from. It is one of the most widely produced plastics in the world tens of millions of tons are produced worldwide each year. Hdpe sheets high density polyethylene sheets polymershapes. The properties of hdpe include three common variations. High density polyethylene pipe hdpe has several properties that make it very different from traditional water works pipe materials. Properties and applications of hdpe or high density polyethylene.