advantages and disadvantages of polymers ppt

Accordingly, in comparison with ordinary cement concrete, its properties such as strength, adhesion, watertightness, chemical resistance, freeze-thaw durability and abrasion resistance are generally improved to a great extent by polymer replacement. Conductive polymers have the potential advantages of lower manufacturing cost and that they can be processed into thin films. Semisynthetic fibres, like rayons, are made by using natural polymers as the starting material. If polymers are used instead of wood, fewer trees will have to be cut down. Although the literature is quick to point out technical differences and advantages/disadvantages of each, the end user will most likely find that the two techniques are very comparable and extremely versatile. Cheap to make; Many uses because of their different properties. Can be done in small labs whereas metals require large workshops to huge industries FLEXIBLE ADVANTAGES OF Some popular polymers for bitumen modification are listed in Table 1 with their advantages and disadvantages. Disadvantages Introduction: Organic polymers are normally insulators, it can be presumed that conducting polymers must have an unusual structure. Among them, SBS attracted the most attention due to its relatively good dispersibility (or appropriate solubility) in bitumen as well as the relatively excellent properties and acceptable cost of SBS modified bitumen [5] , [115] . Some polymers can be recycled, melted down and made into something else which saves valuable natural resources. The advantages and disadvantages of polymeric binders are directly given to the polymer concrete. Advantages Origin: renewable sources Destiny: Biodegodeg adab tyradability BIOPOLYMERS Compostability Disadvantages vs COMMODITY POLYMERS Small production high cost Service-life biodegradation process Low physical chemical and mechanical resitsenceLow physical, chemical and mechanical resitsence High water absorption Therefore, you’re going to create much less solids. Purely synthetic fibres, on the other hand, are made from chemicals. Advantages. The most popular methods of processing thermoplastics are injection molding, extrusion, and thermoforming, The thermoplastics can be like rubber or as strong as aluminum depending on their chemistry, They are light weight, Some thermoplastic materials can withstand the temperature extremes up to 600 F, while the others retain their properties at -100 F. Polyesters, nylons and acrylics are purely synthetic fibres. What advantages are there using a polymer blend? Polymers are more resistant to chemicals than their metal counterparts. Polymers with conjugated π-electron (i. e. system have C=C conjugated bonds) backbones display unusual electronic properties such as low energy optical transition, low ionization potentials, and high electron affinities. Polymer materials handle … FONTS advantages of biodesiles advantages of making polymers Advantages of plastic: Advantages of plastic are light in weight. CHEMICAL COMPOSITION EASE OF FABRICATION It is easier to adjust the chemical composition of polymers The synthesis of polymers is less cumbersome an much easier than metals. One is heat-flux DSC (hf-DSC), initially referred to as Quantitative DTA, and power compensation DSC (pc-DSC). Provide jobs in firms which make the polymer and the product. Polymer and composite materials are up to ten times lighter than typical metals. The advantage of using a blend is typically your coagulant will be much stronger. They can be easily moulded and have excellent finishing. They possess very good strength and toughness. Polymer parts do not require post-treatment finishing efforts, unlike metal. The advantages and disadvantages of biodegradable plastics give us hope for the future because there is an opportunity to reduce our reliance on fossil fuels. They possess good shock absorption capacity. Advantages of synthetic fibres: Synthetic fibres have many advantages … Advantages. Polymer blends are basically a blend of an inorganic and an organic, or a coagulant and a flocculent. 1 Electroluminescence (EL) is an opto-electrical phenomenon in which a material emits light in response to an electrical current flowing through the material or to a strong electrical field. It would be inaccurate to say that these items are free from emissions since it requires petroleum to grow crops in the first place. What advantages are there using a polymer blend lighter than typical metals polymer blends are basically a is. 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