What are the differences between therosetting plastic and thermoplastic?

About Thermosetting Plastic and Thermoplastic

  1. The thermosetting plastics are those which are formed into shape under heat and pressure and results in a permanently hard product.
  2. The thermoplastic materials do not become hard with the application of heat and pressure and no chemical change occurs.

Difference Between Thermosetting Plastic and Thermoplasti (Physical and Chemical Properties)

  • In thermosetting plastic heat first softens the material, but as additional heat and pressure is applied, it becomes hard by a chemical change known as phenolformaldehyde (Bakelite), phenol-furfural (Durite), ureaformaldehyde (Plaskon), etc.
  • In thermoplastic the material remain soft at elevated temperatures until they are hardened by cooling. These can be remelted repeatedly by successive application of heat. Some of the common thermoplastics are cellulose nitrate (Celluloid), polythene, polyvinyl acetate, polyvinyl chloride (P.V.C.), etc.

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