In terms of machining, HDPE finishes a … Satisfactory to 72°F (22°C) 2. Chemical Resistance and Physical Properties Transparency Flexibility Clear Translucent Opaque Excellent Rigid Excellent resistance, no attack. Polypropylene is the second-most widely produced commodity plastic (after polyethylene) and it is often used in packaging and labeling. It lends itself particularly well to blow molding. Polyolefin are polymer materials made from small alkene monomers. Thanks to the material’s extreme strength, HDPE is commonly used to create containers like milk and water jugs, where a 60g jug can effectively retain over a gallon of liquid without distorting its original shape. PE - Polyethylene - Chemical Resistance - Chemical resistance of Polyethylene - PEH - to common products; Plastic Pipes - Friction Head Loss - Friction head loss (ft/100 ft) in plastic pipes - PVC, PP, PE, PEH; Polyester - Chemical Resistance - Chemical resistance of Polyester to products like Acetic acid, Diesel oil and others Please contact MENDA for specific applications. Summary – Polyolefin vs Polyethylene. The difference between polyolefin and polyethylene is that polyolefin is made from the polymerization of alkenes whereas polyethylene is made from the polymerization of ethylene molecules. ABS vs. HDPE. PP Chemical Resistance Guide Product inquiries: Battleground Manufacturing Marina View Headquarters 2600 South Shore Blvd. Since other factors such as permeation, ESCR, and container design are involved, full compatibility testing is recommended. The information below concerns general polyethylene chemical resistance only. They are unaffected by most inorganic acids, alkalis, and aqueous solutions which rapidly corrode metals, although some concentrated acids and oxidizing agents can attack them, especially at elevated temperatures. Both ABS and HDPE are thermoplastics. The following chart should be used as a guide for evaluating the suitability of our products with the chemical agent to be used. The most commonly used material is Polypropylene (PP) which is the appropriate choice for many applications. Why use HDPE for Caps and Plugs HDPE makes for excellent push fit caps and plugs. However, HDPE can remain flexible as well. HDPE Chemical Compatibility & Resistance Chart Explanation of Footnotes 1. Polyvinyl Chloride (PVC) Polyvinyl Chloride is a widely-used plastic. Polypropylene vs. Teflon PTFE/FEP Machining Please select... ABS Acetal Acrylic Delrin ® FR-4 FR-5 G-9 G-10 G-11 G-3 G-5 G-7 Grade C Canvas Grade CE Canvas Grade L Linen Grade LE Linen Grade X Paper Grade XX Paper Grade XXX Paper HDPE Nylatron ® Nylon PEEK Plexiglas Polycarbonate LDPE Polypropylene PVC Rulon ® Ryton Teflon ® PTFE/FEP Torlon ® UHMW Ultem ® Vespel ® Nowadays, PP provides innovative solutions for many drawbacks came from automotive industry. These qualities make cross-linked polyethylene an excellent choice when tank integrity is critical. Its properties are similar to polyethylene, but it is slightly harder and more heat resistant. The high-temperature properties of the polymer are improved, its flow is reduced, and its chemical resistance is enhanced. See under Allyl, Amyl, Butyl, Ethyl, Furfuryl, Methyl, or iso-Propyl 2. HDPE has very good stress crack resistance as well as high impact and melt strength. There are 7 material properties with values for both materials. µ 999 99 9 – C TL O EX R LDPE HDPE PP PPCO PS ACRYLIC PTFE PMP PVC PC PFA Acids - … Main properties of Polypropylene. Polyethylene is a kind of thermoplastic polymers, which means that it turns into liquid by reaching its melting point and turns into solid by reaching its freezing point. HDPE, which stands for high-density polyethylene, is a versatile plastic known for its unique benefits. A = No Attack, possibly slight absorption. > Styrenic Plastic Up Two > ABS Up One. Good resistance, minor attack. Acetaldehyde LDPE and HDPE at 20C° show little or no damage after 30 days of constant exposure. PEX is a medium- to high-density polyethylene containing cross-link bonds introduced into the polymer structure, changing the thermoplastic into a thermoset. Applications include UHMW wear strips, chain guides, and marine dock fender pads. other thermoplastics such as PVC and HDPE. The following is an illuminating article on Polypropylene vs abs, ... ie it is a thermoplastic . • B = Good -- Minor Effect, slight corrosion or discoloration. Poor resistance, not recommended. intermittent, or continuous). Special consideration must be given to the expected temperature, stress involved in the application, and length and type of exposure (i.e. UV resistance, though, is poor; if it is stabilised with additives, it can be improved. It possesses excellent chemical resistance and low moisture absorption. Negligible effect on mechanical properties. Collectively under the polyethylene class of materials, LDPE (low-density polyethylene) and HDPE (high-density polyethylene) have shaped the landscape of the packaging and manufacturing industry. • C = Fair -- Moderate Effect, not recommended for continuous use. Aq. It’s abrasion resistance is good, much better than that of PVC. PP vs. HDPE HDPE Material. Polypropylene Chemical Resistance Introduction Among many of the positive attributes of polypropylene, it is probably best known for its resistance to highly aggressive chemicals. C = Moderate attack of appreciable absorption. Chemical Resistance Chart; Legend. Chemical Resistance Chart for HDPE (High Density Polyethylene) The chemical resistance chart below is a general guide only. As a thermoplastic, it easily melts and molds into required shapes. Polypropylene Chemical Compatibility Chart: Check the chemical compatibility of Polypropylene with various chemicals, solvents, alcohols and other products.. Shop Polypropylene. It has properties very similar to those of polyethylene (PE), but with a higher softening point. Generally speaking, the chemical resistance of polypropylene and polyethylene is considered superior to that of met-als. All Chemical Resistance data for Polypropylene (PP) contained within this manual has been provided, with written consent, by Durapipe. This is a feature of Chemline PVC butterfly valves which have PP discs as standard. HDPE (High Density Polyethylene) has a somewhat lower tensile strength than UHMW. The chemical formula of polypropylene is (C3H6)n. PP … These raw materials have outstanding resistance to both physical and chemical attack. Thermoplastic pipes with significant filler percentages may be susceptible to chemical attack where an unfilled material may be affected to a lesser degree or not at all. Chemline PP pipe and fittings weld together very well using either butt or socket fusion. HDPE is used in a variety of applications and industries where impact resistance, high tensile strength, low moisture absorption and chemical and corrosion resistance properties are required. It is a white, mechanically rugged material and has a high chemical resistance. UHMW is a popular plastic for countless industrial applications that require durability, low friction, and chemical resistance. While polypropylene is highly resistant to many chemicals at room temperatures, its chemical resistance decreases with increased temperatures. Material will have limited life. Resistant to a wealth of solvents, HDPE and PP have a wide variety of applications. It has a good cost/performance ratio and is suitable for high temperatures, or even hot water. High Density Polyethylene is a rigid, tough and strong resin of natural milky color. The result is a plastic that possesses impact resistance, tensile strength and resistance to fracture that linear polyethylene can’t match. Polyethylene is a chemical synthesis of ethylene, usually made up of a mixture of crude oil and natural gas. The chemical resistance of plastic piping is basically a function of the thermoplastic material and the compounding components. It is a linear hydrocarbon resin. Chemical Resistance for Plastics - Find plastic materials and their resistance to different chemicals. D = Material will decompose or dissolve in a short. Acrylonitrile Butadiene Styrene (ABS) High Density Polyethylene (HDPE) … It also offers a high chemical resistance. When the temperature drops below 5°C, Polypropylene (PP) however, it becomes brittle and may break more easily. If you require a crystal-clear container and can't use glass, reach for the PET container. In general, the less compounding components used the better the chemical resistance. 2 IPEX Chemical Resistance Guide for PP POLYPROPYLENE (PP) These notes are to be read in conjunction with the Chemical Resistance tables: 1. Polypropylene is a tough and rigid, crystalline thermoplastic produced from propene (or propylene) monomer. It is light weight. The specific gravity is 0.91 compared to 1.4 for PVC. Some swelling and a small reduction in mechanical likely. HDPE is appropriate for personal care, beverages, food and chemicals. In 2013, the global market for polypropylene was about 55 million tonnes. Limited resistance, moderate attack, suitable for short term use only. Satisfactory to 120°F (48°C) Ratings -- Chemical Effect • A = Excellent. Good chemical resistance: •Acetal •HDPE •LDPE •Nylon •PBT •PEEK •PET •Polypropylene •PPS •PTFE •PVDF (Kynar®) •UHMW-PE IMIDIZED MATERIALS Good chemical resistance: •PAI (polyamide-imide) •Vespel® Polyimide Shapes See pages 76-77 for more specific information See pages 76-77 for more specific information 8. It’s among the most commonly used plastics worldwide, and in addition to UV resistance, has a variety of useful traits. Have a question on the chemical resistance of plastics? Ask a Plastic … Like HDPE, Polypropylene offers good chemical resistance. PP plastic offered remarkable chemical resistance, purity, and it is the only one light weight polymer when compared to all conventional plastics. LDPE at 50C° shows some effect after 7 days of constant exposure. Properties with values for just one material (14, in this case) are not shown. UHMW (ultra high molecular weight polyethylene) is an extremely tough, abrasion-resistant, low-cost plastic, used for a wide range of wear applications. This technical note provides a basic resistance rating for … High Density Polyethylene (HDPE) is an ethylene-based polymer plastic which is created by exposing petroleum to extreme heat and pressure. If you need a container that’s more durable and temperature resistant, HDPE is the plastic of choice. Softening, loss of strength, swelling may occur. HDPE and LDPE Resistance Chart by Chemical LDPE & HDPE resistance listed by chemical 1.4-dioxane LDPE and HDPE at 20C° show little or no damage after 30 days of constant exposure. Polyethylene Chemical Compatibility Guide Page 1 of 5 Chemical Compatibility Guide For Polyethylene Items This Chemical Compatibility Guide is offered for informational purposes only and was developed from information sources other than SpillTech. Polyethylene is a good example for polyolefin. 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