1. At least 5.25 trillion plastic particles weighing a combined 268,940 tons are currently floating in the world’s oceans (Plastic Pollution in the World's Oceans). 2. Total weight of micro-plastics range between 7,000 and 35,000 metric tons (Plastic Pollution in the World's Oceans). B.
Plastics are manufactured in different forms such as moulding pipes, sheets and films. They are formed or expanded to produce materials of low density. Dissolved in solvents or dispersed as emulsions, they are used in paints, varnishes and adhesives. At present, plastics find use in buildings mainly in thin coverings, panels, sheets, foams, pipes etc. skilful use of plastics will expand the usefulness and life of conventional building materials and help them to function more efficiently and
The amount of plastic products that ended up in the ocean as of 2015 are quite high. How high you may ask yourself? No not 1 million but 9 million tons of plastic waste laid in the ocean as of 2015. Who could be responsible for most of this plastic in the ocean? Surprisingly its china, they are responsible for 2.4 million tons per year. That 's 30 percent of the global total.
While glass is fully recyclable, plastic is not something we endlessly reuse. The triangle arrow that is on our plastic bottles is actually telling us the type of plastic it is made out of. There are a total of seven different plastics and only two of them, PET and HDPE, are recyclable. The author states, “only 3 to 5 percent of plastics are recycled in any way.” Products from jackets to carpeting is what more than half of our recycled plastic is used for. To recycle plastic one must use low temperatures.
The huge amounts of plastic thrown away every year are enough to circle the world four times. According to Oxford dictionary plastic is “ a synthetic material made from a wide range of organic polymers that can be formed into shape while soft, and then set into inflexible or slightly flexible form”. It was invented by John Wesley Hayatt in 1869. Today, almost 260 million tons of plastic is produced a year. Plastic does not decompose and it stays on the surface for decades, which led to environment and health problems.
I. Plastic, what have you done? First and foremost, plastics have made a great impact on our lives. Plastic was an innovative material that was invented by Leo Hendrik Baekeland in 1907, who was living in New York state. The word plastic comes from the Greek word πλαστικός (plastikos), which means "capable of being shaped or molded".
1. INTRODUCTION Plastics are manmade molecule of long chain polymer. Substitution of natural material by synthetic polymers started more than half a century ago and the plastic became an indispensable part of life. (1) Stability strength and durability are the main features of plastics which impress all the mankind. With time these features are improved.
It is a material that is designed to be strong, cheap, durable and easy to manufacture. However, where there is usage, there is disposal. Every moment on the earth, massive of plastic is produced and also the waste, people may think once they throw away their plastic products, they are disappeared forever, however, the truth is, “over 80 percent of ocean plastic leaks from land-based sources, even if people don’t live near the sea, chances are the plastic garbage has found its way o the sea” (A Plastic Ocean). Once the plastic has entered the ecosphere, they will be caught by the rainwater, picked up by the stream and river, and finally get into the ocean. People should be aware that, our ocean is heavily polluted by plastic from its surface to its bottom, just as Mike deGruy said in A Plastic Ocean after he finished his deep-sea exploration and saw a plenty of
Like all plastics, bio-plastics are made from the combination of polymers. A polymer is substance that is comprised of small molecular subunits called monomers. The process of linking these monomer subunits together end to end that creates a polymer. This either involves the process of dehydration, which is the removal of water from the sugar or through polymerization to cause the molecules to link together in chains. From there on molecularly linking polymers together will make a plastic.
It seems ridiculous that plastics which are the ones that made a major part in people’s lives could do so much harm. Recycling plastics are not actually done by many nor done in noble ways, only a few percent of plastics are being recycled. Plastics are made from petroleum. Polyethylene is one of the most common plastic. Polyethylene