polythene. / (ˈpÉ’lɪˌθiËn) / noun. any one of various light thermoplastic materials made from ethylene with properties depending on the molecular weight of the polymer. The common forms are a waxy flexible plastic (low-density polythene) and a tougher rigid more crystalline form (high-density polythene).
Principal uses are in packaging film, trash and grocery bags, agricultural mulch, wire and cable insulation, squeeze bottles, toys, and housewares. The plastic recycling code of LDPE is #4.
Polythene is a synthetic material, which is polymerised from ethene. It is thermoplastic, which means that it can be softened by heat and remoulded. There are a number of forms of polythene including high density (HDPE) and low density (LDPE) polythene.
Polyethylene is made by the reaction of multiple ethylene molecules in the presence of catalyst. The polymer industry employs many catalysts, and new catalysts are developed every year.
Pollution from plastic materials, such as plastic bags, affect the natural order of feeding.
There is absolute restriction on carrying food items the polythene bag. Due to polyethylene waste, millions of animals and birds meet their end every year. People are becoming a prey to various diseases, the fertility of the land is being destroyed and the geological sources are becoming contaminated.
Polythene is an example of synthetic fibre.
Polythene is an example of Thermoplastic. Explanation: Thermoplastic is a material, usually a plastic polymer, that becomes more soft when heated and hardens when cooled. When thermoplastics are heated to their melting point, they melt into a liquid
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