Question

Write a paragraph to produce useful article from waste polythene bags

Answer 1

Answer:

When different types of plastics are melted together, they tend to phase-separate, like oil and water, and set in these layers. The phase boundaries cause structural weakness in the resulting material, meaning that polymer blends are useful in only limited applications. The two most widely manufactured plastics, polypropylene and polyethylene behave this way, which limits their utility for recycling. Recently, the use of block copolymers as "molecular stitches" or "macromolecular welding flux" has been proposed to overcome the difficulties associated with phase separation during recycling.

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Answer 2

Useful article from waste polythene bags:

• Plastic is used widely in our day to day life. Starting from pen to polythene bag in which we are carrying fruits and books are form of plastic.
• Polythene bags are non-biodegradable  and do not decay by biological actions of microbes.
• These are harmful for health. If we burn then they emit harmful chemicals like Co2, CO, NO etc..,
• The wastes of plastics damage sanitary pipes and sanitary lines causes malaria, cholera and other diseases.
• Ocean pollution, Ecosystem Imbalance etc..,