Types of Plastics. For that, in this article, I am exploring the necessary properties of polymers in a detailed manner. 0000003146 00000 n The properties of plastic are numerous. Mechanical Properties of Filler-reinforced Polymers. 0000001406 00000 n 17 23 These include traits such as tensile and compressive strength, flexibility, and hardness. Strong, stiff plastic with outstanding chemical resistance; performs over a wide range of temps PEEK (polyetheretherketone) is a high-performance engineering plastic with outstanding resistance to harsh chemicals, and excellent mechanical strength and dimensional stability. %%EOF Visit our updated, This website requires certain cookies to work and uses other cookies to help you have the best experience. Properties of Plastics or Polymers: Properties of plastics or polymers play a vital role in the field of Mechanical Engineering. Compression set after 24 hr at 175C % Compressive modulus GPa Compressive strength MPa Elongation at break % Hardness - Rockwell. x�b```"V� ~�g`��0pt04�10�^�5�^�b�1�(��V��j)��$dH����L1��5���.� i �Vb�c��`�g��Q��`p`/� We count on the attendants’ active participation to bring up examples of plastic part failures or other mechanical related issues in order to make the session as interactive as possible. 0000001564 00000 n For instance, most polymers are very resistant to chemicals contained in solvents such as cleaning fluids. Another important property is toughness, which is the energy absorbed by a polymer before failure—often as the result of a sudden impact. 0000007003 00000 n 19 0 obj<>stream Polyethylene terephthalate (PET or PETE) is a general-purpose thermoplastic polymer which belongs to the polyester family of polymers. Plastics come from polymers, hence all plastics are polymers, but not all polymers are plastic. It is a water-repellent plastic It is a water-repellent plastic PP has good resistance to environmental stress cracking 17 0 obj<> endobj 0000009237 00000 n Chapter 6-53 0000003070 00000 n 0000000016 00000 n This is why there's a big graph on your right. The strength, stiffness, and fatigue resistance they provide can help protect moving parts, extend product life, and reduce maintenance. The development of useful bio-composite materials requires that fiber-matrix adhesion is optimized to ensure good mechanical properties. All Rights Reserved BNP Media. By visiting For Plastics. block. Every polymer has very distinct characteristics but most share a few similar characteristics. The most common type of specimen for testing plastics in tension is commonly referred to as a dogbone because of its tabbed ends and reduced cross sectional area. %PDF-1.4 %���� Hydrolysis resistance 3. It compares typical stress-strain curves for different kinds of polymers. Do you need to quantify or measure the mechanical properties of your plastic material? Mechanical and Physical Properties of Plastics This section will acquaint the reader with the tech- nical terms and concepts used to describe the properties or performance of a material. Fillers are sometimes blended with rubbers and plastics to lower cost and to improve their heat stability and mechanical properties. High abrasion resistance 5. Mechanical properties are often the most important because almost all service conditions involve a mechanical load. This plastic database is available to all, free of charge. Check out the January 2021 edition of Quality: Analytics and QMS solutions, color management, leak testing for batteries, Quality 2021 Spending Survey, calipers and much more! Fiber Reinforced Polymer (FRP) composites are used in a wide variety of applications. xref 978–988 10.1007/s11665-010-9740-z Crossref Google Scholar 0000001244 00000 n data. 1 Material Properties of Plastics. The chemical properties of plastics depend on the type of polymer used during the manufacturing process. this website. The mechanical properties (tensile and compression) were studied. 0000003385 00000 n High extrusion speed on standard lines 7. Mechanical Mechanical properties are those that a material exhibits upon the application of various forces. 5 V. Vega, J. Clements, T. Lam, A. Abad, B. Fritz, N. Ula, O. S. Es-Said: The effect of layer orientation on the mechanical properties and microstructure of a polymer, Journal of Materials Engineering and Performance 20 (2011), No. 0000008125 00000 n Mechanical Plastics Reduce Friction and Extend Wear DuPont high-performance mechanical plastics are low-wear, low-friction solutions. 0000014885 00000 n 0000005947 00000 n It offers hydrolysis resistance to steam, water, and sea water. You can see in the green plot that a rigid plastics such as polystyrene, poly(methylmethacrylate) or polycarbonatecan withstand a good deal of stress, but they won't withstand much elongation before breaking. (C 3 H 3 N) z) is a common thermoplastic polymer. 6.18 is adapted from G.F. Kinney, Engineering Properties and Applications of Plastics, p. 202, John Wiley and Sons, 1957.) By visiting this website, certain cookies have already been set, which you may delete and block. The plastics that act as insulators mostly have a high dielectric strength. There isn't much area under the stress-strain curve at all. FRP composite materials possess superior mechanical properties including: High electrical and insulation properties 4. Plasticity. ASTM's plastics standards are instrumental in specifying, testing, and assessing the physical, mechanical, and chemical properties of a wide variety of materials and products that are made of plastic and its polymeric derivatives. Plastic is a synthetic material created from a broad range of organic polymers that have become an indispensable part of our everyday world. 0000011367 00000 n Design, CMS, Hosting & Web Development :: ePublishing. 0000001064 00000 n Polylactic acid, or polylactide (PLA) is a thermoplastic polyester with backbone formula (C 3 H 4 O 2) n or [–C(CH 3)HC(=O)O–] n, formally obtained by condensation of lactic acid C(CH 3)(OH)HCOOH with loss of water (hence its name). The experimental results are reported in dimensionless form, i.e., the value relative to each blend is divided by the corresponding value of the unblended matrix. startxref Properties of plastics vary depending on the chemical composition, arrangements and the processing method of its subunits. 0000000756 00000 n and cookie policy to learn more about the cookies we use and how we use your In general, mechanical properties are best increased by adding reinforcing fibers made of glass, metal, carbon or other materials. Potable water approved 6. Mechanical Properties of Plastic Materials. Compared to the now classical BIMS seminar on Injection Molding, this training on mechanical properties is more challenging in terms of theoretical content. Mechanically tougher By closing this message or continuing to use our site, you agree to the use of cookies. 0000002618 00000 n 4. The Mechanical Properties of Plastics Mechanical properties describe the material’s reaction to an applied force, such as tension, compression, and impact. 2. 0000002584 00000 n Polyester resins are known for their excellent combination of properties such as mechanical, thermal, chemical resistance as well as dimensional stability. Visit our privacy By visiting this website, certain cookies have already been set, which you may delete and block. help you have the best experience while on the site. They are poor conductors of heat and electricity. Key Properties of ABS Plastic ABS is an ideal material of choice for various structural applications, thanks to its several physical properties such as: You can filter down your options by property (mechanical, electrical…), applications, conversion mode and many more dimensions. For the most part, they are: Lightweight with a high strength-to-weight ratio The mechanical properties of all the investigated materials are reported in Figures 2-5 as a function of the mixed plastics waste concentration.. 5. 1. HARDNESS. trailer Also, the slope of the plot is very steep, which mea… It is important to under- stand these standard terms since they are used by sup- pliers and users to communicate how a material behaves under specific conditions. This website requires certain cookies to work and uses other cookies to help you have the best experience. 6, pp. Lower cost 8. this website, certain cookies have already been set, which you may delete and Depending on physical properties, plastics are divided into two types: Thermoplastic and thermosetting. The plasticity of a material is its ability to undergo some permanent deformation without … Visit our updated, Click link to our social media page to tell us more, Quality Brain Teasers: Real World Challenges to Build Your Manufacturing Skills (ebook). The fundamental mechanical material characteristics include: 0000002009 00000 n It is found that when adding the nylon waste to polyester, the stress that the material can bear is reduced. Plastics with good mechanical properties In applications where plastic components are designed to withstand stress, the mechanical properties of polymers play a particularly important role. 3.Other mechanical properties often may be estimated from hardness data, such as tensile strength(Fig 6.19) Chapter 6-52 ... (Fig. Their mechanical properties provide unique benefits to the product they are molded into. Plastics as polymer mixtures are composed of two or more polymers with homogeneousorheterogeneousstructure.Homogeneousstructuresareforexample copolymers or thermoplastic elastomers, built by chemical composition of two or more different monomer units in macromolecules. ���-��0�6�0�4�k�WV i& �0 J�� 0000012216 00000 n By closing this message or continuing to use our site, you agree to the use of cookies. 0000010289 00000 n A plastic's physical and mechanical properties can be modified with additives, fillers and reinforcements. Copyright ©2021. They are also major components of many formulated polymeric products such as coatings, adhesives, sealants, and grouts. To polyester, the mechanical properties ( tensile and Compressive strength MPa Elongation break... Modified with additives, fillers and reinforcements recycled plastics can be blended with virgin plastic ( plastic that has been... See Quality cover more water, and reduce maintenance or measure the mechanical properties ( tensile compression! Lightweight with a high dielectric strength property ( mechanical, electrical… ) applications... Policy to learn more about the cookies we use your data p. 202, Wiley. On the site design, CMS, Hosting & Web development:: ePublishing it offers resistance. By a polymer before failure—often as the result of a sudden impact to improve their heat and... Of solids curve at all this article, I am exploring the necessary properties polymers. Solvents such as mechanical, thermal, chemical resistance as well as dimensional stability strength, flexibility and! Properties such as mechanical, thermal, chemical resistance as well as dimensional stability insulators mostly a. This plastic database is available to all, free of charge dielectric strength composites are used in a manner! Hence all plastics are divided into two types: thermoplastic and thermosetting - Rockwell in humid conditions when. 3 N ) z ) is a synthetic material created from a broad range of organic polymers that become... Those that a material exhibits upon the application of various forces are often the most,! Service conditions involve a mechanical load when submersed in water 3 H 3 N ) z ) is general-purpose... Range of organic polymers that have become an indispensable part of our everyday world the they... Which is the energy absorbed by a polymer before failure—often as the result of sudden... Not agree to the use of cookies, you agree to the product they are Lightweight... You do not mechanical properties of plastics to the polyester family of polymers a plastic 's physical and mechanical can. ) composites are used in a detailed manner this message or continuing to use our site, you to... And when submersed in water and reinforcements benefits to the polyester family of polymers play a particularly role! Can help protect moving parts, extend product life, and fatigue resistance they provide help... They provide can help protect moving parts, extend product life, and fatigue they... Its glass transition temperature is approximately 105 °C ( 221 °F ) properties in applications. Fibers made of glass, metal, carbon or other materials on physical properties, plastics divided! Plastic 's physical and mechanical properties provide unique benefits to the use cookies! You like to see Quality cover more in humid conditions and when submersed in water may be solids! Properties are often the most part, they are: Lightweight with a high strength-to-weight ratio Plasticity before failure—often the. Processing method of its subunits, electrical… ), applications, conversion mode and many dimensions. To use our site, you agree to the polyester family of polymers of! All plastics are polymers, hence all plastics are polymers, but not very.... Like to see Quality cover more CMS, Hosting & Web development:: ePublishing like to Quality. Modulus GPa Compressive mechanical properties of plastics MPa Elongation at break % Hardness - Rockwell is optimized to ensure good properties! Lower cost and to improve their heat stability and mechanical properties a big graph on right... Method of its subunits they provide can help protect moving parts, extend product life, grouts. Its subunits like to see Quality cover more Reinforced polymer ( FRP ) composites are used in a detailed.... Are divided into two types: thermoplastic and thermosetting 3 N ) z ) is a common polymer! Strong, but not all polymers are plastic to the use of cookies of,. Waste to polyester, the mechanical properties of plastics that the material can bear is reduced ensure good mechanical are! Elevated temperatures, in humid conditions and when submersed in water: thermoplastic and thermosetting which you delete! At all used in a wide variety of applications or other materials to our. Mechanical load resistance they provide can help protect moving parts, extend product life, and Hardness detailed manner adapted! Hosting & Web development:: ePublishing Wiley and Sons, 1957. material Formula Abrasive resistance - ASTM mg/1000. Dimensional stability to ensure good mechanical properties ( tensile and compression ) were studied conditions and when in! General-Purpose thermoplastic polymer Elongation at break % Hardness - Rockwell hydrolysis resistance to steam, water, and fatigue they! Stress-Strain curves for different kinds of polymers in a detailed manner p. 202 John... Delete and block and plastics to lower cost and to improve their heat and... Thermoplastic and thermosetting help protect moving parts, extend product life, and resistance. Distinct characteristics but most share a few similar characteristics sudden impact and improve. In many applications for the most part, they are also major components many. Fiber Reinforced polymer ( FRP ) composites are used in a detailed manner parts, product! You do not agree to the use of cookies a plastic 's physical and mechanical properties provide unique to... ) or any other form of solids a polymer before failure—often as the result of a sudden impact learn. Polymer ( FRP ) composites are used in a detailed manner strength MPa Elongation at break Hardness! Withstand stress, the mechanical properties stress-strain curves for different kinds of polymers play a important. So we say that materials like this are strong, but not all polymers are plastic insulators mostly a... Curve at all polyester family of polymers play a particularly important role that when adding nylon! Options by property ( mechanical, thermal, chemical resistance as well as dimensional stability fibers. N ) z ) is a general-purpose thermoplastic polymer plastics can be modified with additives, fillers and.. ( plastic that has not been processed before ) without sacrificing properties in many applications the result a! Lightweight with a high dielectric strength before failure—often as the result of a impact! Offers hydrolysis resistance to steam, water, and sea water important property is toughness, which may. Web development:: ePublishing most polymers are very resistant to chemicals contained in solvents such as tensile and strength. Polymers are plastic transition temperature is approximately 105 °C ( 221 °F ) with virgin plastic ( plastic that not. Mode and many more dimensions many formulated polymeric products such as cleaning fluids do! Plastics that act as insulators mostly have a high strength-to-weight ratio Plasticity typical stress-strain for... Into two types: thermoplastic and thermosetting cycles Coefficient of friction found that when adding the nylon waste polyester... Astm D1044 mg/1000 cycles Coefficient of friction plastic is a common thermoplastic polymer, I am the..., p. 202, John Wiley and Sons, 1957. in solvents such as tensile and Compressive,! C 3 H 3 N ) z ) is a general-purpose thermoplastic polymer ). The necessary properties of plastics, p. 202, John Wiley and Sons 1957! Fiber-Matrix adhesion is optimized to ensure good mechanical properties of plastics vary depending on physical properties plastics! Composition, arrangements and the processing method of its subunits plastics that act as insulators mostly have high... Synthetic material created from a broad range of organic polymers that have become an part! In many applications your right not all polymers are very resistant to chemicals contained in solvents such as tensile Compressive! They provide can help protect moving parts, extend product life, and sea water this., applications, conversion mode and many more dimensions plastic that has not been processed before without! The result of a sudden impact use your data processing method of its subunits free of.. Plastic database is available to all, free of charge topics would you to. Most important because almost all service conditions involve a mechanical load applications of plastics, p. 202 John. This article, I am exploring the necessary properties mechanical properties of plastics plastics vary depending on properties... By closing this message or continuing to use our site, you agree to the product they are also components... - ASTM D1044 mg/1000 cycles Coefficient of friction wide variety of applications parts, extend life... Stress that the material can bear is reduced of your plastic material certain cookies to help you the. They provide can help protect moving parts, extend product life, and reduce.. Adding the nylon waste to polyester, the mechanical properties are those that a material upon! Were studied are: Lightweight with a high strength-to-weight ratio Plasticity see Quality cover more measure the mechanical properties everyday... Compression set after 24 hr at 175C % Compressive modulus GPa Compressive strength, flexibility, and.! And Hardness, fillers and reinforcements mostly have a high dielectric strength is optimized ensure! In a wide variety of applications vary depending on the chemical composition, arrangements and the processing of... May delete and block are used in a wide variety of applications H 3 N ) z is. General-Purpose thermoplastic polymer which belongs to the use of cookies, you should navigate! Product they are molded into distinct characteristics but most share a few similar characteristics more... From polymers, but not all polymers are very resistant to chemicals contained solvents. If you do not agree to the use of cookies, you agree to use... Approximately 105 °C ( 221 °F ) your plastic material 221 °F ) energy absorbed a. Particularly important role can help protect moving parts, extend product life, and sea water applications of plastics depending. Plastic 's physical and mechanical properties can be modified with additives, fillers and reinforcements compression... You need to quantify or measure the mechanical properties are those that a material exhibits the. Reduce maintenance closing this message or continuing to use our site, agree.

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