That value must be known in order to determine the overall weight of said project and whether its other components will be able to support the heft of the plastic component - which is why we've put together this quick and easy guide on the weights of some of our most popular plastics. Total elongation at failure of some polymers: Tensile modulus or Young's Modulus is the ratio of stress to strain within the elastic region of the stress-strain curve before the yield point. LDPE 0.91-0.93 0000006910 00000 n 0000142018 00000 n If plastic cannot be identified in the six types above-mentioned, then it will be included in group number 7. Finish: Solid. Thermodynamics But they can also be found on mobile phones and, more frequently, in compact-discs (CD). Design & Manufacturability 0000157774 00000 n Whether your business is local or global, we can help to ensure that your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. Natural rubber 0.91 Should reactivate cookies? or in connection with, the use of this information. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected. Physicists use 39.2 F (4 C) as the standard, but engineers ordinarily use 60 F. In the International System of Units (SI Units), the density of water is 1.00 g/cm3 at the standard temperature. in various applications. So, keep reading! 0000005127 00000 n Physics The specific gravity of a substance is a comparison of its density to that of water. Friction Formulas Apps Polycarbonate 1.2 Viscosity Chart. In 1988, the Society of the Plastics Industry introduced the Resin Identification Code (RIC) system which divided plastic resins into 7 different categories. Machine Design Apps However, various factors can affect density such as crystallinity, loss of plasticizer or absorption of solvent. Fun fact: because it is VERY resistant to fatigue, PP is usually used for living hinges (the thin piece ofplastic that allows a part of a product to fold or bend from 1 to 180 degrees). Materials with an index between 1.53 and 1.57 are sometimes considered mid-index, while 1.58 and greater is considered high-index. %PDF-1.4 % View Cart. warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with Blood normally has a specific gravity of ~1.060.
Vivak Sheet has become a staple in the point-of-purchase industry due to its economic advantages compared to polycarbonate and superior impact strength over acrylic. Its usually picked up through most curbside recycling programs and has a tremendously positive track record! Though that may seem like a simple and not particularly worthwhile distinction, any engineer worth their salt will tell you that weight is of the utmost importance when deciding whether a material is appropriate for a particular project. And The SI unit is Kg/m3. 0000014816 00000 n Any reliance you place on such information is therefore strictly at your ownrisk. In fact, not only can plastic be found in a variety of different shapes and colors, but also in many different types. This information can be used to tell whether plastic will float (or sink) if dropped in water (Buoyancy). HVAC Systems Calcs or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of, Hydraulics Pneumatics 0000004927 00000 n Polysulphone 1.24 Perhaps better known by its commercial name Styrofoam its highly inflammable and dangerous as it can leach harmful chemicals, especially when heated (which often happens because, as its found in disposable take-out containers, people oftentimes microwave it to heat up the food inside it). Hi! Polyvinyl acetate 1.19 Butyl rubber 0.92 Learn More, Density and Specific Gravity ASTM D792, ISO 1183, K-SHOW:Visit us at K2022: Supporting Polymers and Materials Development, NEW SERVICE:CircularAssure - Services to help you close the loop in the circular economy for plastics, ARTICLE:Processability and evaluation programmes for recycled plastic materials, ARTICLE:Adhesives Quality Assurance Testing Programs, ARTICLE:Enabling Polymer Non-Wovens Development, CASE STUDY:Polymer Surface Contamination Resolution, CASE STUDY:Polymer Failure - Distribution and Dispersion of Fillers, Ensuring the Safety and Performance of Electrical Products, Testlopedia - The Plastics Testing Encyclopedia, Plastics Circular Economy Solutions - CircularAssure, Physical and Mechanical Testing of Polymers, Thermal Analysis of Polymers and Plastics, Polymer Regulatory and Consulting Services, Polymer Product Processing Development Support, Microbeads and Microplastics Testing and Consultancy, Coatings and Thin Films Analysis and Testing, Supporting Polymers and Materials Development, Processability and evaluation programmes for recycled plastic materials, Adhesives Quality Assurance Testing Programs, Polymer Failure - Distribution and Dispersion of Fillers. 0000168199 00000 n 0000161897 00000 n Available in a range of sizes these trays have many industrial uses. Polycarbonates are commonly used for eye protection in the creation of lenses for sunglasses, sport and safety goggles. A Specific Gravity of less than 1 means that the ps = density of the fluid or substance (kg/m3) ph20 = density of water, standarized at temperature 4C (kg/m3), (Samples may vary, and these figures are approximate. 0000154762 00000 n For convenience's sake, we have converted the specific gravities provided by the manufacturers of our products to grams per cubic centimeters. Polybutene 0.91-0.92 Ultimate tensile strength is the maximum stress the thermoplastic material can withstand before failing, whichever occurs at the higher stress level. 0000015222 00000 n +hSm)/BNy-G:ipb4m(5i9 18N 2Y9 E7q!#5qnc"w2T.Cz(k4l@Ar$.n(*piE1uh%UF?x]*t4\J4j1i,/7Mq$``'>
. Density in plastics is the measurement of mass per unit volume. 0000172297 00000 n Fluids Flow Engineering Feedback Advertising The weight will appear in both metric and common US units. 0000155825 00000 n One of the most remarkable features of plastic is just how greatly its features can vary from variety to variety. 0000072608 00000 n Impact Consumer Products Group All Rights Reserved 2023, 5 Highland Drive Polyethylene terephtalate 1.34-1.39 0000124911 00000 n WebSimply enter the density of the material in which your are interested, select the shape from the drop-down list, enter the dimensions, then hit the Calculate button. the molded piece as compared to the weight of an equal volume of water The information is provided by The difference of Density & Specific Gravity. Web most plastic baby bottles 5-gallon water bottles sport water bottles metal food can liners clear plastic sippy cups some clear plastic cutlery Mixed resin plastics like #7 are difficult, if not impossible, to recycle. Bearing Apps, Specs & Data Sponsored Links 0000167357 00000 n LDPE is used for the infamous plastic bags that are usually used for a few seconds and then discarded. So youve narrowed down what material you need thanks to our Learn More About your Plastic Sheet series - now its time to download a data sheet and take a look at the performance attributes of our materials. 0000004768 00000 n Plastic Corporation. The lower the density or SG of a particular material, the more material per pound or surface area you will get. Learn More, Validating the specifications, value and safety of your raw materials, products and assets. How about an incentive to share this post? 0000124088 00000 n Plastics Synthetics The tests for density and SG are particularly significant in the custom sheet industry because plastic sheet is sold on a cost per pound basis. 0000002953 00000 n 0000042285 00000 n 0000159988 00000 n Engineering Calculators Polyacronitrile 1.17 0000005093 00000 n 0000164707 00000 n 0000125957 00000 n 1, Zhongshan Rd., Dacun Township, Changhua County 515, Taiwan (R.O.C. There are two basic test procedures to determine the density of a material method A, used for testing solid plastics in water, and method B, used for testing solid plastics in a liquid other than water. 0000158889 00000 n WebSpecific Gravity - SG - Tensile Yield Strength - y-(10 3 psi) Tensile Modulus - E - (10 3 psi) Coefficient of Linear Expansion - - (10-6 in/in o F) Thermal Conductivity - k - (Btu in One of the ASTM test methods for plastic commonly seen on data sheets is the test for Density and Specific Gravity (SG). 0000008409 00000 n Electronics Instrumentation Polyvinyl chlorideis the world's third-most widely produced syntheticplasticpolymer. One of the most commonly used plastics, our heavy duty acrylonitrile butadiene styrene, or ABS sheeting, has a high impact resistance and durability to be used for automotive, printing, and display applications. These specialty materials have densities of up to 15 g/cc yet still have the moldability of plastics. Note: Both densities need to be in the same unit as they will cancel each other and produce SG. Since the density of a fluid varies with temperature, specific gravities must be determined and specified at particular temperatures. Intertek is the industry leader with employees in 1,000 locations in over 100 countries. Engineering Forum Please read AddThis Privacy for more information. Specific Gravity = (Weight A / Weight B) Density = (Weight A / Weight B) * 0.9976 g/cm3 0000018128 00000 n Specific Gravity (SG) is defined as the ratio of 0000005504 00000 n In addition, polystyrene is not accepted incurbside collectionrecycling programs and is not separated and recycled where it is accepted. 0000005946 00000 n Second, polystyrene foam blows in the wind and floats on water, due to its low specific gravity. The solid wood density may be determined using the green volume, The density of water is 1.0 g/mL at room temperature, so the specific gravity is equal to the density of the object expressed without a unit. AddThis use cookies for handling links to social media. Health effects vary depending on the resin and plasticizers in this plastic that often 9;-h3UR{SD bD=NSH3)0lefD}n 81 c+0!o XFu#N/? It is a very inexpensive resin per unit weight and easy to create, for these reasons it can be found everywhere: from beverage cups, insulation, packing materials to egg cartons and disposable dinnerware. PA-6 1.12-1.13 WebDensity of Plastics Material: Technical Properties Table. 0000160831 00000 n 0000117341 00000 n At Plastics For Change, we are giving second life to discarded plastic numbers 1,2,4, and 5 and re-use them for the creation of various different products while cleaning our oceans! 0000117718 00000 n 7 0 obj<> endobj xref 7 103 0000000016 00000 n 0000163869 00000 nExpanded PVC sheet plastic is the ideal material where durable construction materials are needed. 0000007137 00000 n 0000177508 00000 n Despite its many advantages and efforts made by the plastic industry to increase its reusability, PVC is still hardly recyclable and should therefore be avoided, whenever possible. Others might see it as an important way to reduce risk or liability. Styrene-butadiene 0.93 Polypropylene 0.90-0.92 0000125208 00000 n 0000171239 00000 n 0000135081 00000 n HWM7W=T+[h#E\Zc"YLGr>ZH can be special ordered. **Ji-Horng Plastic is a leading plastic injection molding manufacturer since 1986, for more information, please contact us!**. Thanks to its versatile properties, such as lightness, durability, and easiness of processability, PVC is now replacing traditional building materials like wood, metal, concrete, rubber, ceramics, etc. Hard and sturdy, it can withstand high temperatures and is found in tupperwares, car parts, thermal vests, yogurt containers, and even disposable diapers. Therefore, the specific gravity is a unitless number. This broad range of flexible Tygon tubing products are engineered to meet many user specifications including chemical resistance, fluctuations in temperature, abrasion, high purity and long servicelife. Technical name - High-Density Polyethylene its an incredible resistant resin used for grocery bags, milk jugs, recycling bins, agricultural pipe, but also playground equipment, lids, and shampoo bottles among others. Roto-molded LLDPE with thick walls for superior strength anddurability. ?b0/7>41"FUm'V69mjqQn[pd@,XrKC^k $e-eI]abs6QCoq$Y+4Gb=.bsm?JBny!Q.h38'!xSi{C ,*+R9hHz 0000146514 00000 n Due to the different density of plastic, we can easily identify different plastics by "Buoyancy Test", for more information, please check out in related articles. You have no items in your cart. In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss Portions throughout the same sample may also differ in density due to differences in crystallinity, thermal history, porosity, or changes to the material composition, such as the addition of a filler or pigment. Learn More, Formally confirming that your products and services meet all trusted external and internal standards. CONSTITUTION: An isotactic polyolefin powder or particle of an average particle PVC 1.37-1.39 WebSpecific Gravity Information. 0000003888 00000 n xb```f`g`g`0cb@ !V6C'``D&yY(J-Ftt@UJ `H Dvp48(kha``aAA8koxD(lb'ftb~ef.aS-`0`"#a(1&' .8ffgS D!f' Specific gravity (S.G.) is a measure of the relative density of a substance as compared to the density of water at a standard temperature. 0000117111 00000 n ,unv . Polystyrene 1.05 The American Society for Testing and Materials (ASTM) is an organization that defines and sets standards to ensure good quality and workmanship. Used in plastic bags,six-pack rings, various containers, dispensing bottles, and most famously for plastic wraps, is not often recycled through curbside programs. WebDensity of Plastics Density is calculated by dividing the mass of the material by the volume and is normally expressed in g/cm3. 0000011164 00000 n 1 gallon of water weighs 8.33 lbs. 0000129490 00000 n WebSpecific gravity is the (unit less) ratio of the solid wood density to the density of water at the same temperature. 0000134268 00000 n 0000012608 00000 n WebSpecific gravity is the ratio of the density of a substance to the density of the same volume of water. WebThough some manufacturers use grams per cubic centimeter to indicate the weight of their products, others merely provide the specific gravity of their material. Training Online Engineering. Continue reading to learn more! All rights reservedDisclaimer | 0000153750 00000 n 0000124655 00000 n Easy for Beginner: Plastic Material Identification by Buoyancy Test, How to Identify Plastic Materials by Burn Test Accurately, No.98, Ln. 0000145640 00000 n 0000131261 00000 n Yield point is the first point where the specimen yields, where the specimen's cross-sectional area begins to contract significantly, or where the strain can increase without increase in the stress. The most widely used member of the vinyl family, PVC is excellent when used for corrosion-resistant tanks, ducts, fume hoods and pipe. 1 cm3 water weighs 1 g (as mentioned, density of water is 1g/cm3), and 1cm3 aluminum weighs 2.7 g (the density is 2.7 g/cm3), thus specific gravity of aluminum is 2.7 1 = 2.7 (which has the same value with density), **Tip: To look it up efficiently, mobile phone viewer, please use site searching, computer viewer, please use "Ctrl + F"**, Remarks: Glass Fiber (GF), Carbon Fiber (CF), Mineral Fiber (MF), Impact Modified (IM), Low Friction (LF), Talc Filled (TF), Ultra High Molecular Weight Polyethylene (UHMWPE), Crosslinked Polyethylene (XLPE), Density of Chemical Additives forInjection Molding. 0000166558 00000 n 0000019679 00000 n Specific gravity, 0000151915 00000 n Thermodynamics Directory | Heat Transfer Directory, Specific Gravity Table Chart and Equation. 0000004265 00000 n ~P2p@0$:+mbsuz! WebPURPOSE: The title filler having a low specific gravity and excellent affinity for plastics and retention of electric conductivity, prepared by applying a metallic coating to the surface of an isotactic polyolefin powder or particle etched in the presence of a specified chemical agent. You can target the Engineering ToolBox by using AdWords Managed Placements. WebMaterial density g/cc 1 g/cc = material density = specific gravity Therefore, knowing the specific gravity and with the help of the handy conversion table on the shared drive one Plastic Material: Density & Specific Gravity PA66, 1.13 - 1.15 PA66 + 30% GF, 1.37 PA66 + 30% MF, 1.35 - 1.38 PA66 IM, 1.05 - 1.10. This changes the ratio for our calculation; it is now 0.945/0.74 or 1.28. 0000050964 00000 n 0000165724 00000 n SPECIFIC GRAVITY- The ratio of the weight of the molded piece as compared to the weight of an equal volume of water ASTM D792. Plastic (CR-39) and Crown Glass are considered base index with indices of 1.498 and 1.52 respectively. Density of Plastics: Technical Properties. Density measures the mass per unit volume. It is calculated by dividing the mass of the material by the volume and is normally expressed in g/cm 3. The density of a plastic sample may change due to change in crystallinity, loss of plasticizers, absorption of solvent, etc. Gears Design Engineering The purpose was to provide a consistent national system to facilitate recycling of post-consumer plastics." Each one is different from the other and has different uses. Because of this difference, when comparing polypropylene sheet to PET sheet, holding constant gauge and size, customers can see approximately a 30% density reduction from PET to PP and an increased yield on pounds purchased. 0000162752 00000 n Acrylic doesn't have as much impact resistance as polycarbonate; polycarbonate's tensile strength is greater than that of PVC; PVC's heat deflection abilities are lesser than Vivak's; and so on, and so on. 3t6/8lM2-lA Beverage bottles are among the main plastic items that come for PET. This site requires JavaScript to function. All prices and offers subject to change. For example, polypropylene has a density of approximately 0.90, whereas PET has a density of approximately 1.40. For example, The American Society for Testing and Materials (ASTM), approximately a 30% density reduction from PET to PP and an increased yield on pounds purchased. WebThe Specific Gravity - SG- is a dimensionless unit defined as the ratio of density of the material to the density of water at a specified temperature. 0000136804 00000 n Hardware, Imperial, Inch For more information Please review the privacy policy, Disabling cookies will make it impossible to use member-related functions. Specific Gravity means specific value of an object under normal temperature and pressure. 0000173991 00000 n WebSince the density of a fluid varies with temperature, specific gravities must be determined and specified at particular temperatures. (You will help other colleagues find this blog). ASTM D792 +74|=8/[ dcepJ@@ Q endstream endobj 8 0 obj<> endobj 10 0 obj<> endobj 11 0 obj<>/Font<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>> endobj 12 0 obj[278 750 474 750 750 750 750 238 750 750 750 750 278 750 278 278 556 556 556 556 556 750 750 750 556 750 750 750 750 750 750 611 750 722 750 722 722 667 611 778 722 278 750 750 750 750 722 778 667 750 722 667 611 750 667 944 750 667 750 750 750 750 750 750 750 556 611 556 750 556 333 611 750 278 750 750 278 750 611 611 611 750 389 556 333 611 556 750 556 556] endobj 13 0 obj<> endobj 14 0 obj<> endobj 15 0 obj<> endobj 16 0 obj<> endobj 17 0 obj<> endobj 18 0 obj[/ICCBased 39 0 R] endobj 19 0 obj[278 750 355 750 750 750 750 191 333 333 389 750 278 333 278 278 556 556 556 556 556 556 556 556 556 556 278 750 750 584 750 556 750 667 667 722 722 667 611 750 722 278 750 667 556 833 722 778 667 750 722 667 611 722 667 944 750 750 750 750 750 750 750 750 750 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500] endobj 20 0 obj<> endobj 21 0 obj<> endobj 22 0 obj[278 750 750 750 750 750 750 750 333 333 750 750 750 750 278 278 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 722 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 750 556 750 500 556 556 278 556 556 222 750 750 222 833 556 556 556 750 333 500 278 556 500 750 750 500] endobj 23 0 obj[250 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 500 500 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 667 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 778 722 778 778 778 778 778 778 778 444 500 444 500 444 778 778 778 278 778 778 278 778 500 500 778 778 333 389 278 778 500] endobj 24 0 obj<> endobj 25 0 obj<> endobj 26 0 obj<>stream The best-known plastics of this group are polycarbonates(PC) used to build strong,toughproducts. 0000152962 00000 n Manufacturing Processes Only emails and answers are saved in our archive. 0000149962 00000 n HDPE 0.96-0.97 Cookies are only used in the browser to improve user experience. We carry a large selection of American-made Tamco industrial strength tanks. 0000128624 00000 n Downloads For example, some types of plastic are reusable and others arent because of the chemicals they contain; some can be recycled and others need to be disposed of in a different way. 0000148052 00000 n Specially designed for marine applications, antiskid HDPE sheeting offers superior durability with the additional benefit of a non-skid surface perfect for high-traffic marine surfaces. WebSupplier: U.S. 0000139528 00000 n One of the most basic differences between varieties, however, can be found in how much they weigh. Cleaning & Industrial U.S. 0000176664 00000 n With a smooth, matte finish, expanded PVC sheets provide the great surface for graphic overlays.
, Sign up for A&C Plastics Updates, Promotions. If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. 0000137613 00000 n The member-related functions have been closed due to the deactivation of cookies. If youve ever felt this way after reviewing a material data sheet, then this next Impact Plastics Blog series focused on Understanding your Data Sheet is for you. 0000132332 00000 n Do you have a packaging idea and need some guidance on which material is best? Mass Versus Solids and Metals - Specific Gravities . Specific gravity for some common solids and metals like aluminum, asbestos, brass, calcium and many others . Sponsored Links . The Specific Gravity - SG- is a dimensionless unit defined as the ratio of density of the material to the density of water at a specified temperature. 0000002356 00000 n 0000169321 00000 n 0000126937 00000 n Environmentally-speaking its among the worst types of plastic: first, it is regarded as notbiodegradable. If you are interested in knowing more about what we do, click here. This bucket is economically priced, while still featuring premium bucket quality and durability. 0000051762 00000 n Materials and Specifications Structural Shapes I'm Gelson Luz, mechanical engineer, welding specialist and passionate about: I am building this blog to be the best learning blog about engineering! This website uses cookies to collect necessary user browsing behaviors so that we can provide you with a better browsing experience. For PS the melt density is 0.945 g/cm 3 and for PP it is about 0.74 g/cm 3. 0000015048 00000 n Specific gravity and density are especially relevant because plastic is sold on a cost per pound basis and a lower density or specific gravity means more material per pound or varied part weight. There are two basic test procedures- Method A and Method B. The more common being Method A, can be used with sheet, rod, tube and molded articles. Videos Design Manufacture Threads & Torque Calcs WebMinerals and other Materials - Specific Gravities Specific gravities for minerals and other materials. Method A is the more common test method used, and can be performed with sheet, rod, tube and molded pieces of plastic materials that are not affected by water. This may also be referred to as relative density. The lower the density or SG of a particular material, the more material per pound or surface area you will get. PA-66 1.13-1.15 Polystyrene is the sixth type of plastic on the list and it can be solid or foamed. 0000124825 00000 n Polychloroprene rubber 1.23 0000143715 00000 n The specific gravity of plastic is the ratio of the density of plastic to that of a reference substance (Usually water). Therefore, the specific gravity (which is dimensionless) for a liquid has the same numerical value as its density in units of g/cm3. Electric Motor Alternators Since then, after undergoing some minor variations, the RIC has been recognized as the worldwide standard plastic classification. Polymers typically have a benchmark density that can offer an approximate value of what the density of a particular material can be expected to be. resistant to a variety of bases and acids, some solvents and chlorinated hydrocarbons may damage the material, common as DEV - Drainage, Waste and Vent - pipes, only compression and banded type joints used. Web1 28768 DENSITY OF PLASTICS What is Density of plastic: The density of a substances is generally known as mass per unit volume. 0000138434 00000 n As far as its disposal is concerned, HDPEis accepted at mostrecyclingcenters in the world, as it is one of the easiest plastic polymers torecycle. Definition: Density v.s. Now we need a minimum of 6.16 x 1.28 or 7.88 oz of shot capacity. Animals do not recognize it as artificial and may mistake it for food causing serious effects on the health of birds or marine animals that might swallow it. In order to help you make better-informed decisions about the products that you buy, today we will go through the seven different types of plastic, how they differ, and their impact on the environment. 6I&dsV.G{w+Z#Ot>wY[~JKWr#oyOIIl(RV[U|i:n0qfB#}CNs,%|PEyeTeB LLDPE 0.91-0.94 Heres a brief recap of what we have learned so far: We hope this blog post has provided some clarity about the differences among all these plastic types. 0000002716 00000 n 0000151051 00000 n 0000086690 00000 n Engineering Mathematics Pumps Applications 0000004435 00000 n Plastics have a really wide specific gravity range depending on its composition. Lubrication Data AppsMetv Shows Coming Soon 2022,
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