Polymers or engineering plastics are macromolecules formed with one or more repeated chemical units in the same chain, which are called monomers: thousands of organic molecules joined through covalent bonds that cause the polymerization process.
Mechanical properties of polymers for industry
Thanks to the large molecular chains of the polymer and the chemical composition carried out in the laboratory, the mechanical properties of plastics for industry have great resistance compared to other materials.
Thanks to the properties and structures that each one has, polymers can be classified as follows:
- Type of monomers by which they are formed: homopolymers or copolymers.
- How polymer chains are formed: polymerization, polycondensation and polyaddition.
- Types of bond: chemical or intermolecular forces.
- Materials that make up: thermoplastics, elastomers or thermosets.
What are Thermoplastics?
They are plastics that are subjected to high temperatures to deform and mold them into various shapes.
What are Thermosets?
They are a type of plastic that when heated can only be molded once during its manufacture.
What are polymers?
They are those that stand out for their elasticity, since they recover their initial shape after being deformed.
We present the processes to modify plastic products in different industry applications:
- Injection molding: parts for machines and other more complex shapes.
- Rotation molding for large structures.
- Blown film and cast film for thermoplastic materials.
- Pressing for resins.
- Yarn for fibers.
- Transfer and compression molding for thermosetting materials.
- Vulcanization for rubbers or elastomers.