The application of engineering plastics imagine the space shuttle lifting off in an explosion of cryogenic fuel from its external tank and solid rocket boosters, climbing across the sky, entering space at hypersonic speed and then returning to earth through the scorching friction of earths atmosphere. Advantages and disadvantages of plastic dronacharya. In this article we will discuss advantages and disadvantages of plastic over metal parts. Advantages and disadvantages of plastic essay in points. Ofttimes people use it as a dodge and congest the slides with their ideas, so that they have to speak lesser or not at all. Typical reactions for chain assembling are polyaddition continuous or step wise and condensation polymerization polycondensation 1 figure 1. Mechanical properties and performance of materials samples of engineering materials are subjected to a wide variety of mechanical tests to measure their strength, elastic constants, and other material properties as well as their performance under a variety of actual use conditions and environments. Plastic packaged food lasts longer, reducing wastage. Advantages and disadvantages of plastic full essay in points disadvantages of plastic. Keywords plastic recycle, mixed plastic waste mpw, polyvinyl chloride pvc i. Group pemrg on the production and the demand of plastic raw materials. Various products of plastic are available for household and other purposes. For the process of conversion a machine can be used which will heat the plastic to a temperature so that it melts and does not burns.
A free powerpoint ppt presentation displayed as a flash slide show on id. Advantages of plastic over metal plastic materials are low in cost, weight and also have the advantage of low processing. Plasticseuropes market research and statistics group pemrg provided input on the production and the demand of plastic raw materials. With its everexpanding applications, plastics have delivered many benefits for society. Plastic packaging accounts for nearly half of all plastic waste globally, and much of it is thrown. Pdf on aug 19, 2015, rajendran sangeetha devi and others.
In other words, the more plastic bags you use, the greater the chances of environmental damage. The seventh edition of this classic reference work once more provides a comprehensive overview of commercially available plastics materials. Ppt plastics and their uses powerpoint presentation. Adobe acrobat reader dc download free pdf viewer for. Need book fundamentals of plastics mould design book by sanjay k nayak, pratap chandra padhi, y hidyathullah. Our goal as an international leader in plastics fabrication and distribution can only be reached by. Production capacity and operating efficiency of plastics, fy. So let us check it out some advantages and disadvantages one by one. Plastics are a wide range of synthetic or semisynthetic organic compounds that are malleable. The energy and resources institute introduction the plastic industry, owing to its use in a wide variety of sectors, such as the automotive, construction. Dec 19, 2014 recent studies in this direction have shown some hope in terms of using plastic waste in road construction i. Find powerpoint presentations and slides using the power of, find free presentations research about disadvantages of plastic ppt.
Advantages and disadvantages of plastic advantages of plastic. Plastic bags are stable and benign in sanitary landfills. In general, biobased and biodegradable plastics are more expensive than fossilbased plastics on a weight basis. And now, its connected to the adobe document cloud. The plastic atlas provides facts and figures about the world of synthetic polymers. Merits and demerits of plastic money based on experiences of. New polyethlene material datasheet nationwide plastics. Plastic atlas 2019 free download heinrichbollstiftung. Conversion of plastic wastes into fuels 87 in a short span of five years plastics have captured 40% of total 6. Its high points may turn out to be ineffective for you, if not utilized properly. Adobe acrobat reader dc software is the free global standard for reliably viewing, printing, and commenting on pdf documents. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Pdf degradation of various plastics in the environment. They can be easily moulded and have excellent finishing. The energy and resources institute challenges and opportunities. Offering complete and indepth data and information on plastics extrusion, this practical handbook presents the technology of the subject rather than the theory. View and download powerpoint presentations on disadvantages of plastic ppt. Tech engineering chemistry or applied chemistry unit wise material with question and answers, jntu related old or previous question papers, powerpoint presentations, pdf files, word documents, and civil engineering. Apr 18, 2020 welcome to the mechanical engineering trending blog. Plastic consumes very less energy for recycle compared to glass. The remaining half is disposed of at landfill sites or simply burned in incinerators. Ppt recycling plastics powerpoint presentation free to. Several challenges could be faced in an attempt to replace petroleum based plastics product with green plastics. Even though plastic products have undeniable positive effect on our lives and industry, it still has several disadvantages. Pete plastic is used to make many common household items like beverage bottles, medicine jars, rope, clothing and carpet fibre. Ppt plastics and their uses powerpoint presentation free to download id.
They have low thermal expansion of coefficient and possess good thermal. The disadvantages of using plastic products sciencing. Click here download book fundamentals of plastic mould design pdf introduction 1. Advantages and disadvantages of plastic compared to metal. Ppt plastics and their uses powerpoint presentation free.
Jessica ellen cornish born 27 march 1988, better known by her stage name jessie j, is an british singer and songwriter. The production of nylon was started without using any natural raw material from plant or animal almost simultaneously in new york and london, thus it got its name ny for new york and lon for london as nylon. A study on the importance and popularity of plastic money in. This course provides participants with a general introduction to the plastics industry. Nylon plastics handbook by, 1995, hanser publishers, distributed in the usa and in canada by hansergardner publications edition, in english. However, specific material properties can allow costs reductions in the use or endoflife phase. This situation may grow further in the coming years with more and more us and european companies entering the market. Plastics and plastic products manufacturers in dubai plastic and plastic products are extensively. I,mohammed shafi, admin,blogger and an assistant professor from the department of mechanical engineering, having 3 years of experience in teaching, in one of the reputed engineering colleges in hyderabad,india want to teach you all the aspects of mechanical engineering.
Advantages of plastic are corrosion resistant and chemically inert. Other than cost, plastics offer various other advantages. Disadvantages the following disadvantages have also been identified. Microbial degradation of polyvinyl chloride plastics pdf ph. It is hard to break down which means that the landfills and seas being affected by plastic will. Npi has been a leading distributor of quality sheet, rod, tube and film plastics to a wide variety of markets. Merits and demerits of plastic money based on experiences of peoples. It is usually made in factories by melting the grains and poured into moulds and are synthetic. She first saw fame when she began writing tracks for justin timberlake, alicia keys and christina aguilera. Recycling plastics logan mongelli, victoria pemberton, roddy tierney, deanna prue is there a market for recycled paper approximately 140 paper mills in the u. Introduction about 50% of the plastic waste collected as general waste is recycled today.
For most of the biobased and biodegradable plastics there are several suppliers and most plastics are readily available. When preparing a powerpoint presentation one should remember that it is a critical technique. Biobased and biodegradable plastics facts and figures. Global production of plastics has grown 20 fold from 15 million metric tons mt in 1964 to 311 mt in 2014 plastics europe, 2015, with plastics becoming ubiquitous across almost all facets of the economy. Plastic roads mainly use plastic carrybags, disposable cups and pet bottles that are collected from garbage dumps as an important ingredient of the construction material. The primary focus of this training program is the daytoday operations of a typical injection molding facility. The real reason that the worlds landfills werent overflowing with plastic was because most of it ended up in an ocean fill u. It is a world free from moth and rust and full of colour, a world largely built up of synthetic materials made from the most universally distributed substances.
Also explore the seminar topics paper on plastic as a soil stabilzer with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2017 2018. Its the only pdf viewer that can open and interact with all types of pdf content, including. Explore plastic as a soil stabilzer with free download of seminar report and ppt in pdf and doc format. Medical plastics and composites use containers bottles, bags drug delivery iv bags, syringes tubing and tools for surgery implants, artificial skins the use of plastic materials in the medical field, about 4 billion dollars in 2000 us. Dec 29, 2014 about some of the advantages and disadvantages of plastic in brief. Advantagesanddisadvantagesofusingplastics plastics are manmade material that can be moulded into different colours and shapes. Elocution demerits of plastics free essays, term papers. Plastic as a soil stabilzer seminar report, ppt, pdf for. A study on the importance and popularity of plastic money in aluva doi. Firms consider plastics easier and cheaper to manufacture as compared to other materials such as metals and stones because theyre produced. Degradation of various plastics in the environment cleavage of the chain to form hydroxyls, ca ge reaction between the pair o f the radicals formed, i. Pdf the role of microbes in plastic degradation researchgate. Introduction plastic is the general common term for a wide range of synthetic or semi synthetic organic solid materials suitable for the manufacture of industrial products.
Advantages of plastic are used to produce another product. Kim 8 materials solid materials metals ceramics plastics. Therefore, it is possible to convert waste plastic into fuels. Plasticseuropes market research and statistics group pemrg provided input. Polymer science free download as powerpoint presentation. Plastic bags are complimentary in many locations but are charged or taxed in others. Engineering plastics handbook mcgrawhill handbooks pdf. The use of plastic products has increased significantly in the recent past, with many enterprises joining the industry and many more varieties of plastics being made.
As like advantages the first disadvantages of plastic is the strong and durability is beneficial when it comes to protection but these same features turn evil when it comes to decomposition. Disadvantage of plastics are deformation under load. The term polymer means a molecule made up by repetition of simple units. Disadvantages of plastic negative effects of plastic. In february 2011, she won the prestigious critics choice award at the brit awards in 2011.
Plastic is strong and water and chemical resistant. Plastic in the first place is manufactured from natural gas specifically from ethane which is a constituent of natural gas. Bridging the gap between theory and practice, it enables scientists to understand the commercial implications of their work as well as providing technologists with a theoretical background. Engineering plastics handbook this page intentionally left blank engineering plastics handbook james m. The main objectives of this study were to understand and optimize the processes of plastic pyrolysis for maximizing the diesel range products, and to design a continuous. The adobe flash plugin is needed to view this content. Plastic bags are made of petrochemicals, a nonrenewable resource. Therefore the waste plastic can be converted back into it. Those disadvantages can range from lack of durability in certain uses, chemical risks, and environmental harm to potential choking hazards. Plastic means easy to bend or mould into different shapes.
475 1062 1334 470 1028 236 1547 628 1153 1363 175 31 898 746 11 227 1465 1165 1489 898 306 1445 439 577 565 756 596 1426 454 964 1016 636 49