types of plastics and their properties pdf

Types of plastics and their properties pdf

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Properties and Uses of Plastics as a Construction Material

The world is full of plastics. Whether you realize it or not, practically everything you see and use on a daily basis is entirely or partly plastic material. Your television, computer, car, house, refrigerator, and many other essential products utilize plastic materials to make your life easier and more straightforward.

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The world is full of plastics. Whether you realize it or not, practically everything you see and use on a daily basis is entirely or partly plastic material. Your television, computer, car, house, refrigerator, and many other essential products utilize plastic materials to make your life easier and more straightforward.

However, all plastics are not made alike. Manufacturers utilize a variety of different plastic materials and compounds that each possess unique properties. Well-known for its use in optical devices and products, acrylic is a transparent thermoplastic used as a lightweight, shatter-resistant alternative to glass. Acrylic is typically used in sheet form create products such as acrylic mirrors and acrylic plexiglass.

The transparent plastic can be made colored and fluorescent , abrasion-resistant, bullet-resistant, UV-tolerant, non-glare, anti-static and many more. In addition to being than glass and polycarbonate sheeting, acrylic is seventeen times more impact resistant than glass, easier to handle and process, and has endless applications. Tough, stable, and transparent, polycarbonate is an excellent engineering plastic that is as clear as glass and two hundred and fifty times stronger. Thirty times stronger than acrylic, clear polycarbonate sheets are also easily worked, molded, and thermo-formed or cold-formed.

Although extremely strong and impact-resistant, polycarbonate plastic possesses inherent design flexibility. Unlike glass or acrylic, polycarbonate plastic sheets can be cut or cold-formed on site without pre-forming and fabrication. Polycarbonate plastic is in a wide variety of products including greenhouses, DVDs, sunglasses, police riot gear, and more. The most common plastic on earth, polyethylene can be manufactured in varying densities.

Each different density of polyethylene gives the final plastic unique physical properties. As a result, polyethylene is in a wide variety of products. This density of polyethylene is ductile and used to make products like shopping bags, plastic bags, clear food containers, disposable packaging, etc.

Possessing more polymer chains and, thus, greater density, MDPE is typically in gas pipes, shrink film, carrier bags, screw closures, and more. Compared to HDPE, this polyethylene plastic much more abrasion resistant due to the extreme length of its polymer chains. Possessing high density and low friction properties, UHMWPE is in military body armor, hydraulic seals and bearings, biomaterial for hip, knee, and spine implants, and artificial ice skating rinks.

Its widespread use and popularity are undoubted because polypropylene is one of the most flexible thermoplastics on the planet. Although PP is stronger than PE, it still retains flexibility. It will not crack under repeated stress.

Durable, flexible, heat resistant, acid resistance, and cheap, polypropylene sheets are used to make laboratory equipment, automotive parts, medical devices, and food containers. Just to name a few. The most common thermoplastic resin of the polyester family, PET is the fourth-most produced synthetic plastic. Polyethylene Terephthalate has excellent chemical resistance to organic materials and water and is easily recyclable.

It is practically shatterproof and possesses an impressive high strength to weight ratio. This plastic material is in fibers for clothing, containers for foods and liquid, glass fiber for engineering resins, carbon nanotubes, and many other products that we use on a daily basis. The third-most produced synthetic plastic polymer, PVC can be manufactured to possess rigid or flexible properties. It is well-known for its ability to blend with other materials.

For example, expanded PVC sheets are a foamed polyvinyl chloride material that is ideal products like kiosks, store displays, and exhibits. The rigid form of PVC is commonly in construction materials, doors, windows, bottles, non-food packaging, and more. With the addition of plasticizers such as phthalates, the softer and more flexible form of PVC is in plumbing products, electrical cable insulation, clothing, medical tubing, and other similar products.

Created by polymerizing styrene and acrylonitrile in the presence of polybutadiene, ABS is robust, flexible, glossy, highly processable, and impact resistant.

It can be manufactured in a range of thicknesses from microns to 5mm with a maximum width of mm. 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. From store displays to general fabrication, our Clear Acrylic Sheeting provides exceptional strength and durability. HDPE sheet is a versatile and malleable alternative to acrylic and polycarbonate sheeting.

Whether you work in security or the automotive industry, polycarbonate mirror plastic sheeting is ideal for applications that require a mirrored surface with high heat resistance and impact strength.

An economical alternative to HDPE or ABS, polypropylene plastics offer an excellent balance of thermal, chemical, and electrical properties. Polypropylene sheeting also possesses a very favorable strength to weight ratio. Need Help? Call Acrylic or Polymethyl Methacrylate PMMA Well-known for its use in optical devices and products, acrylic is a transparent thermoplastic used as a lightweight, shatter-resistant alternative to glass. Polycarbonate PC Tough, stable, and transparent, polycarbonate is an excellent engineering plastic that is as clear as glass and two hundred and fifty times stronger.

Polyethylene PE The most common plastic on earth, polyethylene can be manufactured in varying densities. Acrylonitrile-Butadiene-Styrene ABS Created by polymerizing styrene and acrylonitrile in the presence of polybutadiene, ABS is robust, flexible, glossy, highly processable, and impact resistant. Get in Touch Name. ABS Plastic Browse.

Clear Acrylic Sheets Browse. HDPE Browse. Polycarbonate Mirror Browse. Polypropylene Sheet Browse.

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Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products. Materials recovery facilities are responsible for sorting and processing plastics. As of , due to limitations in their economic viability, these facilities have struggled to make a meaningful contribution to the plastic supply chain. However, the industry has lobbied for the expansion of recycling while these companies have continued to increase the amount of virgin plastic being produced. When different types of plastics are melted together, they tend to phase-separate , like oil and water, and set in these layers. The phase boundaries cause structural weakness in the resulting material, meaning that polymer blends are useful in only limited applications. This is in part why the plastics industry has developed the resin identification codes.

Year 10 Manufacturing Resistant Materials. Lesson 4 Plastics. Properties, Uses and Common Forms. Lesson10 Vacuum forming. Lesson11 Quality. Lesson 12 Finishes.

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Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Materials as a field is most commonly represented by ceramics, metals, and polymers. While noted improvements have taken place in the area of ceramics and metals, it is the field of polymers that has experienced an explosion in progress.

Plastic recycling

Plastic , polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure. This property of plasticity , often found in combination with other special properties such as low density , low electrical conductivity, transparency, and toughness, allows plastics to be made into a great variety of products. These include tough and lightweight beverage bottles made of polyethylene terephthalate PET , flexible garden hoses made of polyvinyl chloride PVC , insulating food containers made of foamed polystyrene , and shatterproof windows made of polymethyl methacrylate.

Properties and Uses of Plastics as a Construction Material

To understand the types of plastics available, their differences and to figure out what can be recycled, refer to our quick guide below. One of the most commonly recycled plastics, clear bottles are likely to be recycled, remove lids first. Clear bottles look for 'bubble' on the bottom of a bottle , food trays clear, green, black etc. Clear bottles look for a line on the bottom of the bottle , food trays, toys, piping, wire insulation. More fragile and will crack and. Reuse of bags and targeted collection in supermarkets most likely, dispose of materials contaminated with food. Reuse of individual items more likely, avoid placing in your recycling unless specifically instructed to do so.

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Plastics are also called as Polymers. They are made up of carbon, hydrogen and sometimes oxygen, chlorine, nitrogen, fluorine, sulfur, phosphorus or silicon. Properties of plastics or polymers play a vital role in the field of Mechanical Engineering.

The seven types of plastic

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