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Difference between Thermoplastics and Thermosetting Plastics

Difference between Thermoplastics and Thermosetting Plastics:

Today we will study the Difference between Thermoplastics and Thermosetting Plastics. Here You will get the articles of Mechanical Engineering in Brief with Some Key Points and you will get to know an enormous amount of knowledge from It. So You Find helpful this articles please let us know in the comment box either if any correction required too, also let’s know in the comment box.

Here we will study about some 10 main points of difference between Thermoplastics and Thermosetting Plastics.

Read More: Sintering In Powder Metallurgy Process

What is Thermoplastics:

  • Thermoplastics are the linear polymers, which becomes soft on heating and become hard on cooling.
  • The molecules of these polymers are synthesized in the shape of long threads and undergo no chemical change in the molding operation.
  • Some common thermoplastics are polyethylene, PVC, polystyrene, nylon, and acetate.

Read more: Powder Metallurgy::Advantage, Disadvantage and Application

What is Thermosetting plastics:

  • Thermosetting Plastics are cross-linked polymers, which becomes soft only on first heating with pressure and get hard permanently on cooling due to chemical changes by condensation and polymerization, and becomes unaffected by the heat or solvents.

Examples and applications of Thermosetting plastics materials:

  • Epoxy resins – used as coating materials, caulks, manufacture of insulating materials, etc …

  • Phenolic resins – tool handles, billiard balls, sprockets, insulation, etc …

  • Unsaturated polyester resins – manufacture of plastics reinforced fiberglass commonly known as polyester, fillers, etc.

Difference between Thermoplastics and Thermosetting Plastics

Powder Metallurgy Process::(Powder Preparation, Mixing and Blending, Compacting, and Sintering)

Difference between Thermoplastics and Thermosetting Plastics:

Sl No Thermoplastics Thermosetting plastics
1. These are linear polymers. These are cross-linked polymers
2. They undergo no chemical change in the moulding operation. They undergo chemical change in the moulding operation.
3. They can be softened again and again. They cannot be re-softened once they hard.
4. These plastics can be reused. These plastics cannot be reused.
5. These are soft and flexible. These are hard and brittle.
6. They are affected by certain solvents. They are unaffected by any solvent.
7. They are not fireproof. They are fireproof.

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