Table 1. Classification of plastics

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Presentation transcript:

Table 1. Classification of plastics THERMOSETS THERMOPLASTICS 1. Solidifies or sets irrevocably when heated. 1. Softens when exposed to heat and yields to original state at room temperature. 2. The molecules of these plastics are cross linked in three dimensions and this is why they cannot be redesigned or recycled. 2. Do not undergo significant chemical change. 3. They are useful for their durability and strength. 3. Weak bond, which becomes even weaker on reheating. 4. Used predominantly in automobiles and construction applications. Other uses include adhesives, inks, and coatings. 4. Thermoplastics can easily be shaped and modelled into products such as floor coverings, credit cards, carpet fibres, etc. Swati Pathak et al. Bioplastics: Its Timeline Based Scenario & Challenges. Journal of Polymer and Biopolymer Physics Chemistry, 2014, Vol. 2, No. 4, 84-90. doi:10.12691/jpbpc-2-4-5 © The Author(s) 2014. Published by Science and Education Publishing.