A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. Plastics are typically organic polymers of high molecular mass‚ but they often contain other substances. They are usually synthetic‚ most commonly derived from petrochemicals‚ but many are partially natural.[1] A plastic material is any of a wide range of synthetic or semi-synthetic organic solids that are moldable. Plastics are typically organic polymers of high molecular mass‚ but they often
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ABSTRACT The study aims to produce biodegradable plastic using cassava starch as its main component. Cassava starch was mixed with water‚ epoxydized soya bean oil (ESBO)‚ glycerol‚ and polyvinyl alcohol (PVA). The mixture was then compressed and tested. Three preparations were made from the mixture. The first preparation contained 50 grams starch‚ 50 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2.5 grams glycerol. The second preparation contained 65 grams starch‚ 65 grams water‚ 50 grams PVA‚ 2
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Plastics are synthetic substances produced by chemical reactions. Almost all plastics are made from petroleum‚ except a few experimental resins derived from corn and other organic substances. "Plastics" derived their name from their properties to be molded‚ cast‚ extruded or processed into a variety of forms‚ including solid objects‚ films and filaments. These properties arise from their molecular structure. Plastics are polymers‚ very long chain molecules that consist of subunits (monomers) linked
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about the plastic ban‚ which has resulted in the shift to the use of paper bags. Our world today is experiencing an environmental dilemma particularly on the numerous solid wastes around us. This is what pushed the government to implement an ordinance that would ban plastic bags and use paper bags instead. But did the government thought of the possible environmental effects that this alternative might bring? Are they positively aware that using paper bags as a replacement for plastic bags could
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figures show that plastics make up around 25% of the garbage that metro manila churns out‚ while an independent survey conducted by Eco waste Coalition and Greenpeace on the composition of discards on manila bay in 2006 found that 51% were plastic bags‚19% sachets and junk food wrappers‚ 5% Styrofoam‚ 1% hard plastics‚10% rubber‚ 13% biodegradable wastes (Cayetano‚ 2008;www.senatorpiacayetano.com/psc/pressreleasedetails.php?recordID=175) Biodegradable plastics are degradable plastics on which the degradation
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Plastic: It’s Impact on Earth BRIANNA NGUYEN 16/11/2012 Plastic has become such an integral part of society; it is used in nearly everything. They are accepted by a majority of people as an important feature to all products such as cellphones and bags because of their high resilient properties‚ their affordability‚ accessibility‚ and their low weight. With all these positive elements of plastic‚ it may seem that plastic is completely problem-free. The only problem is; there is a very pressing
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Conventional Oil Based Plastics Vs. Innovative Green Plastics The Twentieth century was filled with many inventions that have greatly influenced our world. The invention of plastic was one of the most dramatic of them all. Humans use plastics each and every day and just imagining a day without them is inconceivable. A material can be a plastic if it satisfies three conditions: its main ingredient must be a polymer material‚ it must be fluid at some point during processing‚ and it must be solid
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Plastic Plastics are used on a daily basis throughout the world. The word plastic is a common term that is used for many materials of a synthetic or semi-synthetic nature. The term was derived from the Greek plastikos‚ which means “fit for molding.” Plastics are a wide variety of combinations of properties when viewed as a whole. They are used for shellac‚ cellulose‚ rubber‚ and asphalt. We also synthetically manufacture items such as clothing‚ packaging‚ automobiles‚ electronics‚ aircrafts‚ medical
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Handmade Paper from Musa sapientum (banana) leaves ABSTRACT The main goal of this research is determine whether Musa Sapientum (banana) leaves can be another source of fiber for paper making by producing quality handmade paper out of Musa sapientum (banana) leaves. The banana leaves were gathered cut into small pieces and soaked in a basin full of water overnight. It underwent boiling in water‚ then in NaOH solution‚ and then lastly in soda ash solution to separate the cellulose fibers from the
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recycling of plastics bringing any long-term benefits to the environment? Plastics are one of the most popular building materials of modern human culture‚ but its widespread has brought many problems and caused environmental issues of extraordinary scale. Throughout the years‚ discarded plastics are accumulating as debris in landfills and in natural habitats worldwide. To control this issue‚ governments of many countries have established industrial processes for transforming discarded plastic into useful
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