Thursday 9 October 2014

stop using plastic bags
Plastic is one of the major elements that constitute the backyard trash.
Typical household trash burned consists of items that would typically be sent to a landfill or recycled. This includes
    • Paper.
    • Cardboard.
    • Food scraps.
    • Plastics.
    • Yard trimmings.
    • Leaves. Now one of the most important part of this project is the hazards caused by burning plastic. 
In the past, the trash burned by residents, especially those in rural areas, consisted mainly of paper and wood. The makeup of trash has changed within the past 50 years and now includes coated paper, plastics, and other materials manufactured by humans. Hence, it is necessary to make people aware about the hazards caused by burning plastic. Because when people will be aware of it, then only they will stop dumping their plastic bags in their bins and will stop burning it. Now, the question is what makes plastic bags so hazardous. The answer lies in chemical composition of plastic and further its physical and chemical properties. So, lets take a trip to the world of plastics......
ok, now the foremost important characteristic of plastic is that it is made up of polymers?? Now, what are polymers? A polymer is a molecule whose structure is composed of multiple repeating units, from which originates a characteristic of high relative molecular mass and attendant properties...
Now, let us see what this picture depicts???
A plastic item with thirty years of exposure to heat and cold, brake fluid, and sunlight. Notice the discoloration, swelling, and crazing of the material. Crazing looks like a network of fine cracks on the surface of a material, for example in a glaze layer. Brake fluid is a type of hydraulic fluid used in hydraulic brake and hydraulic clutch applications in automobilesmotorcycleslight trucks, and some bicycles. It is used to transfer force into pressure, and to amplify braking force. 

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