It shows very good tribological properties, high oil resistance and excellent dimensional stability also with wide ranges of temperature fluctuations. Material Properties of Plastics 1.1 Formation and Structure The basic structure of plastics (or polymers) is given by macromolecule chains, formulated from monomer units by chemical reactions.
Other properties that the plastics engineer has to address include: outdoor weatherability, thermal properties such as upper use temperature, electrical properties, barrier properties, and resistance to chemical attack. The strength of plastics can further be increased by reinforcing them with various fibrous materials. HOW TO INCREASE REPETITION VALUE OF PLYWOOD? All operations like drilling, sawing, punching, clamping etc are carried out easily on plastics, just like wood. You can connect me on Google +. Your email address will not be published. When you want to apply any type of load on a particular member, you need to know its material properties, density, etc. The distance between the atoms is more when compared with metals and thereby the Binding energy is low. Typical reactions for chain assembling are polyaddition (continuous or step wise) and condensation polymer-ization (polycondensation)  (Figure 1.1). It is important to know the general outstanding properties of plastics to make best use of this an engineering material. Your email address will not be published. At room temperature, they are available in the form as Solids. It is available in the form of liquid at Room temperature. Required fields are marked *.
Thermosetting Plastic Definition (Thermoset) –. It is hazardous to the environment which is more when compared to the thermoplastic and less than the rubber. First attempts like the Vinyloop process can guarantee that a product's primary energy demand is 46 percent lower than conventional produced PVC.
PET is among those plastics which are an important part of your everyday life. Plastics easily maintain its shape and do not go under plastic deformations. Plastic Machinery is the general term for all types of machinery and devices used in the plastics processing industry. Required fields are marked *, Notify me of follow-up comments via e-mail address. Superior corrosion and chemical resistance . The new polyethersulfone (PESU) Ultrason® E0510 C2TR is particularly suited for automotive parts that come into contact with hot oil. A plastic is a polymeric material that is in a semi-liquid state, having the property of plasticity and exhibiting flow. Our main focus is to give our readers quality notes directly from the Professors, and Well Experienced Mechanical Engineers who already completed their education. In a large production run cooling time is very expensive. Many plastics are found to possess excellent corrosion resistance.
Plastics are available in variety of colors, both opaque and transparent. Good wear properties. These chains are called polymers and that is why many plastics begin with “poly,” such as polypropylene, polyethylene, and polystyrene. In many cases however, it is important for a product to meet certain specifications, and cost could then be measured in price per unit of a property. The examples of Thermoplastics are as follows. So this is all about types of plastics with their corresponding properties. Properties of plastics or polymers play a vital role in the field of Mechanical Engineering. You can find this famous clear plastic around you as water bottle or soda bottle container. The cost of a plastic product is measured in different ways, and the absolute cost of a plastic material is difficult to ascertain. Plastics are clean, light and shining, so they need not be given any finish such as painting, polishing etc. Engineering plastics offer many advantages over metal as a production material: Reduction in weight. Notify me of follow-up comments by email.
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