Difference between Thermoplastics and Thermosetting Plastics [With PDF]

Amrit Kumar
Reading Time: 2 minutes

The main differences between Thermoplastics and Thermosetting plastics are Thermoplastic are linear polymers and Thermosetting plastics are cross-linked polymers.

Before moving to further detailed explanation lets have some overview of Thermoplastic and Thermosetting Plastics.

Note: At the bottom of every article the PDF link is attached make sure if you want you can easily download.

Thermoplastics:

Thermoplastics are the linear polymers, which become 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.

Thermosetting plastics:

Thermosetting Plastics are cross-linked polymers, which become 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 Thermoplastic and Thermosetting Plastics
Difference between Thermoplastic and Thermosetting Plastics

Difference Between Thermoplastics and Thermosetting Plastics:

Sl NoThermoplasticsThermosetting plastics
1.Thermoplastics are linear polymers.Thermosetting Plastics are cross-linked polymers
2.They undergo no chemical change in the molding operation.They undergo chemical change in the molding 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.Thermoplastics are not fireproof.Thermosetting Plastics are fireproof.

So this our short presentation on the difference between Thermoplastic and Thermosetting Plastics, I hope you like it if so, let me know your thoughts in the comment section.

You can read more about Manufacturing Processes.

FAQ:

What is Thermoplastic?

Thermoplastics are the linear polymers, which become 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.

What is Thermosetting Plastics?

Thermosetting Plastics are cross-linked polymers, which become 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.

What are examples of Thermoplastic and Thermosetting plastics?

Some common thermoplastics are polyethylene, PVC, polystyrene, nylon, and acetate.
Epoxy resins are an example of Thermosetting Plastics.

References:

https://www.sciencedirect.com/topics/materials-science/thermoplastics

Was this post helpful?

Co-Founder. Writer. Mechanical Engineer
I'm Proud to be a Mechanical Engineer!
Steam Condenser: Definition, Functions, Working Principle, Types, Applications, Advantages, and Disadvantages [Notes with PDF]

In this article, I'm going discuss about Steam Condenser in briefly. At the end of this article, you will learn How a Steam Condenser works, Definition and Types of a steam condenser, and more. So let's get started. The Functions or Needs of a Steam Condenser: The functions or the needs of the condenser in […]

Electron Beam Welding: Definition, Construction, Working, Applications, Advantages, and Disadvantages [Notes with PDF]

Today in this article I am going to give you an in-depth overview of Electron Beam Welding Machine. This Welding Process was first developed in 1949 by Karl-Heinz Steigerwald who was a German physicist. In this article first, we will see the Definition, How it's Work after that I'll also show you the Applications, Advantages, […]

Extrusion Process: Definition, Working Principle, Types, Applications, Advantages, and Disadvantages [Notes with PDF]

In the field of mechanical engineering, the Extrusion Process is widely used by the engineers to form an object which has a fixed cross-sectional area. For making the object, the raw material is pushed into a die to provide it with the desired shape. The major function of this process is that the brittle materials […]