its low density, it takes up a relative large amount of space in . Polystyrene is a versatile thermoplastic that is available in a wide range of formulations. Biaxially oriented polystyrene films in thin gauges are used for … It is one of the largest volume commodity It is the material of choice for many applications including food-packaging, Despite its advantageous properties, polystyrene is brittle and flammable; it also softens in boiling water and, without the addition of chemical stabilizers, yellows upon prolonged exposure to sunlight. 15 polystyrene reference material 500mg each US$ 1000.00 15 polystyrene reference material 1,000mg each US$ 1400.00 . dielectric constant (ε) polystyrene (amorphous): 2.49-2.55 at 1kHz (curve flat to 1GHz)* PMMA: 3.6 at 50Hz, 25ºC; 3.0 at 1KHz, 25ºC; 2.6 at 1MHz, 25ºC; 2.57 at 30GHz, 25ºC; 2.59 at 138 GHz, 25ºC* dielectric strength polystyrene: (ASTM D 149): 19.7-22.7 MV/m; 500-575 Volts/mil; 19.7-22.7 kV/mm** PMMA: 17.7-60 kV/mm****** electrical conductivity polystyrene: 10-16 S/m******* PMMA: n/a resistivity [unit = Ohm cm] polystyrene: 1020 - 1022;* volume resistivity (ASTM D 257): 1.0 x 1017** PMMA: >1015*; 1014-101… The range of properties available along with the ease of processing make polystyrene a good choice for many applications. The graph bars on the material properties cards below compare GPPS to: styrenic plastics (top), all thermoplastics (middle), and the entire database (bottom). Three different thermal treatments were investigated: a first quenching from the melt state to different temperatures, a second quenching from +7°C, and finally an annealing. Although both types of insulation are comprised of polystyrene, the two types of manufacturing processes produce finished products with very different performance properties. Sign up to get access to this premium feature for free. Notes: Visit MatWeb's property-based search page to limit your results to materials that meet specific property performance criteria. Polystyrene is a not biodegradable plastic and resistant to Furthermore, its upper temperature limit for continual use is rather low Our Ashby charts are interactive with more technical data upon clicking. transition temperature (Tg) See details of its material properties in the chart below. Both copolymers have very high stress and impact resistance and ABS Material. produced are α-methylstyrene, o-, m-, and p-methylstyrene, 1 See ASTM C578 Standard for test methods and complete information. We expect other The transformation of carbon-carbon double bonds into less reactive single bonds in polystyrene, is the main reason for its chemical stability. market. It is a lightweight, rigid, plastic foam insulating material produced from solid beads of polystyrene. Hatton, Kayo: Jorge Marcondes, Lucy McProud, Our quality polystyrene sheets are characterized by high heat resistance and good stress cracking resistance. EPS is a rigid, closed cell, thermoplastic foam material. Extruded grades can be used in trays and packaging. Styrenic Copolymers and their blends are considered engineering thermoplastics because their properties can be tailored over a wide Depending on the application, densities range from 10kg/m3 to 35kg/m3. thermoplastic market1. Expanded Polystyrene Physical Properties Expanded polystyrene has a flame spread index of 20 and a smoke developed index of 150-300 when tested in accordance with ASTM E84/UL 723 for densities from 0.7 - 2.0 lb/ft3. This page shows summary ranges across both of them. The large EPS blocks beads can … The material can be injection molded and extruded. We do not empirically evalu- Solid polystyrene is used, for example, in disposable cutlery, plastic models, CD and DVD cases, and smoke detector housings. Expanded Polystyrene Physical Properties Expanded polystyrene has a flame spread index of 20 and a smoke developed index of 150-300 when tested in accordance with ASTM E84/UL 723 for densities from 0.7 - 2.0 lb/ft3. From being used as building materials to white foam packaging, expanded polystyrene has a wide range of end-use applications. But the resins are attacked by gasoline, lacquer thinner, turpentine and citrus-fruit-rind oil. Use our interactive properties table below to explore by property group, sort, or compare two or more plastic materials. Polystyrene (PS) is a clear, amorphous, nonpolar commodity Polystyrene can be transparent or can be made to take on various colors. 1 Source: PlasticEurope / Consultic / ECEBD A large variety of products are formed by injection molding including dining utensils, plastic cups, housewares, toys, More importantly, that’s common practice today. In chemical terms, polystyrene is a long chain hydrocarbon wherein alternating carbon centers are attached to phenyl groups (a derivative of benzene).Polystyrene's chemical formula is (C 8 H 8) n; it contains the chemical elements carbon and hydrogen.. Its lightweight, strength, thermal insulation, durability and other properties make it suitable for a number of applications. lower-cost and lower-density resins to gain market share in has excellent optical clarity due to the lack of crystallinity, and has good chemical resistance to diluted acids and bases. It is a major contributor to the debris in the ocean. disposable consumer plastic goods as well as parts for optical, electronic/electrical, Styropor®, and The strength of EPS foam along with its shock absorbing properties makes it effective for use in children’s seats and cycling helmets. General purpose polystyrene is clear, hard and brittle. PP products in the general recycle stream. PS is a very good electrical insulator, For chemically resistant plastic, view our Chemical Resistance of Plastics chart. Probably of equal importance are poly(styrene-co-butadiene) (SBR, Properties of Polystyrene – (C 8 H 8) n Polystyrene (solid and foam) is widely used to protect consumer products. Sign In. Unmodified polystyrene is clear, rigid, brittle and moderately strong. Most of polystyrene's properties are influenced by short-range attractions, called van der Waals, between the … quality, very durable plastic products suitable for many demanding applications. Abstract. Polystyrene (PS) PS is a thermoplastic, further classified as a styrenic plastic. The toughness of high-impact Polystyrene increases with increasing rubber content. It is being widely used for the day to day applications. However, these copolymers often yield yellow products. The toughness of high-impact Polystyrene increases with increasing rubber content. See details of its material properties in the chart below. The properties of PS include two common variations. In addition, polyethylenes are lightweight, easily processed and offer near-zero moisture absorption. To increase the heat resistance, styrene is sometimes copolymerized with small amounts of maleic anhydride or it is copolymerized Injection molding applications include labware, diagnostic equipment, and device components. Expansion is achieved by virtue of small amounts of gas contained within the polystyrene bead. It is also easy to fabricate into a large number of Polystyrene is a synthetic polymer made from styrene monomer, which is a liquid petrochemical. The EPS beads are expanded and finally molded into larger EPS blocks which are further used for walls, roofs, floors, crawl spaces.. Applications of Polystyrene. It is commonly used plastic to produce a variety of end segment products. All of our polystyrene and PMMA (poly(methyl methacrylate)) microspheres . Polystyrene can be rigid or foamed. Plastics Group Polifil® RP-HIPS High Impact Polystyrene Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified. Styropor Expanded Polystyrene Technical Bulletin S-7, “Protective Packaging” Properties and Design Fundamentals”, BASF Corporation, Mt Olive, New Jersey. HIPS is a graft copolymer having polystyrene sidearms. 6.6.2 Polystyrene Properties. However, polystyrene also has several limitations such as chemical sensitivity to hydrocarbon solvents, poor oxygen and ultraviolet resistance, brittleness, and low upper temperature limit [5]. Hence, it finds use in a wide variety of applications such as food containers, packaging material, building insulation, and more. What is Polystyrene (PS)? Polystyrene is soluble in most chlorinated and aromatic solvents though not in alcohols. Styron™. (2013)2The term crystal is used to describe the excellent optical clarity of the product. The natural color of expanded polystyrene is white, this is due to light refraction. Polystyrene is typically (but not always) a homopolymer meaning that it is composed only of the monomer styrene in combination with itself. Polystyrene foams are used for a variety of applications because of its excellent set of properties including good thermal insulation, good damping properties and being extremely light weight. It has much improved chemical resistance, However, polystyrene also has several limitations such as chemical sensitivity to hydrocarb… Polystyrene is one of the most important commodity plastics. it is completely amorphous. One of its most popular Polystyrene formats is when it is made into a foam material, called expanded polystyrene (EPF). heat stability, and improved mechanical properties. Richfield, WI 53076, https://dielectricmfg.com/wp-content/uploads/2019/02/header-logo.jpg, Halar® (Ethylene-Chlorotrifluoroethylene), Thermoplastic Materials - Cost Comparison, UHMW (Ultra-High-Molecular-Weight Polyethylene), Vespel® (High-Performance Polyimide-Based Plastic), Nomex® (Synthetic Aromatic Polyamide Polymer). thermoplastic that is easy to process and that can be easily The biggest problem is expandable polystyrene (EPS); due to In addition, polyethylenes are lightweight, easily processed and offer near-zero moisture absorption. There are two types of polystyrene foam best suited for processing with the Hot wire foam cutters and Hot knife cutters: extruded polystyrene (XPS foam), and expanded polystyrene (EPS foam). Three different thermal treatments were investigated: a first quenching from the melt state to different temperatures, a second quenching from + 7 °C, and finally an annealing. In chemical terms, polystyrene is a long chain hydrocarbon wherein alternating carbon centers are attached to phenyl groups (a derivative of benzene). The production volume of polystyrene and styrene copolymers Some of its weaknesses can be overcome by copolymerization with other monomers. Its electrical properties are good though it has relatively low heat resistance. Polystyrene is insoluble in water. which is an expanded polypropylene (PP) that can be recycled right along with other for parts which require high(er) impact resistance. The later is used as a cross-linking agent in a large number of different polymer materials. High Impact Polystyrene: Polystyrene containing a polybutadiene rubber impact modifier is opaque or translucent rather than transparent. It is easily dissolved by many aromatic hydrocarbon solvents and chlorinated solvents. Call 800-367-9122 or email sales@dielectricmfg.com. The gas expands when heat in the form of steam is applied, thus forming closed cells of EPS. 1-800-553-0335. CD and DVD cases, foam packaging peanuts for shipping, food packaging, meat/poultry trays and egg cartons typically are made with polystyrene to protect against damage or spoilage. Many styrene derivatives have been synthesized on a Is Dielectric Manufacturing ISO Certified? XPS is manufactured in a continuous extrusion process that pr… All categories Polystyrene foam – EPS can be used in manufacture of sliders, model planes and even surfboards because of its positive strength to weight ratio. Polystyrene is compound is non-biodegradable with a couple of exceptions. When the material is heated, the chains become flexible and elastic. Although recycable, polystyrene is not recycled in many parts of the All rights reserved. This behavior is characteristic of tough materials. It is sold under various trade names, including Despite all these weaknesses, styrene polymers are very attractive large-volume commodity plastics. It is also compression resistant, meaning that polystyrene is ideal for stacking packaging goods. The range of properties available along with the ease of processing make polystyrene a good choice for many applications. ; Show All Materials - an inefficient drill-down to data sheets. General-Purpose Polystyrene offers performance & processing that make these resins well suited for clear or foamed applications while High-Impact Polystyrene combines toughness with other features, such as gloss & processability, for packaging & home appliances. Polystyrene Characteristics. The copolymer poly(styrene-co-maleic anhydride) (PSMA) This behavior is characteristic of tough materials. Expanded Polystyrene – Expanded Polystyrene or EPS has great properties such as low weight, high rigidity, and formability. Among those that are commercially The copolymer poly(styrene-co-methyl methacrylate) (PSMMA) has higher clarity and improved chemical and UV stability. See where Polystyrene (PS) falls on the material property chart for Density against Elastic modulus in your materials selection and design process. EPS: Expandable polystyrene The results have shown that a slight improvement of the impact strength can be obtained after a second quenching at 40°C, and a correlation between the mechanical and thermal properties is observed. Expanded polystyrene materials are ideal for construction projects for many reasons: Strong and durable. These chains consist of thousands of hydrocarbon atoms, making the attractive force very high. world. It is impervious to most foods, drinks and household fluids. is several million tons per year. films, and sheets. landfills.In recent years, the (food) packaging industry has ; More Search Strategies on how to find information in MatWeb. Although polystyrene can be supplied with UV inhibitors and colored to minimize UV absorption, this plastic injection molding material is not recommended for continuous outdoor use. photolysis. Hence, it finds use in a wide variety of applications such as food containers, packaging material, building insulation, and more. There are four categories of polyethylene thermoplastic material based on density/property: low, medium, high (HDPE) and ultra-high molecular weight polyethylene. General Purpose Polystyrene (GPPS) GPPS is a grade of PS. Polystyrene Characteristics Polystyrene is a versatile thermoplastic that is available in a wide range of formulations. it has poor impact strength due to the stiffness of the polymer backbone. Properties . A full bar means this is the highest value in the relevant set. Medical applications include pipettes, Petri dishes and medicine containers. Below its Tg, it has medium to high PS is made by the polymerization of styrene which is a kind of building block material used to produce a variety of plastic products. STYRON Polystyrene (PS) polymers appear in many products. commodity thermoplastic. Properties tables include physical, mechanical, thermal, electrical, etc. products, like disposable drinking cups, egg cartons, trays, fast-food The three most important grades of styrene are: GPPS: General purpose polystyrene, The expanded or foamed polystyrene is thermally insulating, has high impact resistance and good processability. High-impact Polystyrene displays a less steep initial rise in the curve and, after reaching the yield point, pronounced deformation until rup-ture. Unmodified polystyrene is clear, rigid, brittle and moderately strong. Products made from foamed polystyrene are nearly ubiquitous, for example packing materials, insulation, and foam drink cups. 9025 Technology Dr. Fishers, IN 46038 • www.bangslabs.com • info@bangslabs.com • 800.387.0672. that can be easily molded. Unmodified polystyrene is clear, rigid, brittle and moderately strong. It is a synthetic polymer made of monomer styrene. (100°C). It is a thermoplastic polymer which softens when heated and can be converted via semi-finished products, such as films and sheets, into a wide range of final articles. Depending on the type of PS it could be classified as a “thermoplastic” or a “thermoset” material. General-Purpose Polystyrene offers performance & processing that make these resins well suited for clear or foamed applications while High-Impact Polystyrene combines toughness with other features, such as gloss & processability, for packaging & home appliances. EPS is commonly preferred thermoplastic material for over half a century due to its performance, technical versatility, and cost-effectiveness. Some of the advantages of the polystyrene include good electrical and moisture resistance properties, optical clarity, chemical resistance to diluted acids and bases, and high formability. Now that we know what it is used for, let’s examine some of the key properties of Polystyrene. All of our polystyrene and PMMA (poly(methyl methacrylate)) microspheres are solid, non-porous polymer bead products. Now that we know what it is used for, let’s examine some of the key properties of Polystyrene. Polystyrene also is made into a foam material, called expanded polystyrene (EPS) or extruded polystyrene (XPS), which is valued for its insulating and cushioning properties. are solid, non-porous polymer bead products. STYRON Polystyrene (PS) polymers appear in many products. due to the lack of crystallinity and its low glass transition temperature of with this monomer to an alternating structure. about Tg = 373 K It is one of the most recognised plastics available in multiple commodity plastics. The solid form of plastic is … containers, cushioned packaging, and thermal insulation for the construction As a foam, polystyrene can be brittle and easy to break and crumble. Properties . Lot No. Thanks.Mailthaddeus: Polystyrene is not a structural material … The range of properties available along with the ease of processing make polystyrene a good choice for many applications. Of end-use applications full bar means this is the highest value in the set. Methyl methacrylate ) ) microspheres is one of its most popular polystyrene formats is when it is one the! Versatile thermoplastic that is available in a wide range of end-use applications elastic modulus in materials! 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