Why is it important to recycle polymers?

Why is it important to recycle polymers?

Why is it important to recycle polymers?
Polymeric materials can be classified as thermosets and thermoplastics. Thermoset polymers refer
to the irreversible polymerization and this type of polymer is cured by chemical reaction or heat and
becomes infusible and insoluble material. Thermoplastics are made up of linear molecular chains and
this polymer softens on heating and hardens when cooled [16].
Thermoplastic polymers are represented by a large range of plastic materials. There are three types
of thermoplastic polymers:

Recycling and Polymers

Crystalline thermoplastics, usually translucent with molecular chains which present a regular
arrangement. Compared to other types, these polymers have more mechanical impact resistance.
Examples of this type of polymers are polypropylene (PP), low-density polyethylene (LDPE),
and high-density polyethylene (HDPE).
Amorphous thermoplastics, usually transparent with the molecules arranged randomly.
Examples of this type of polymers are poly vinyl chloride (PVC), polymethylmethacrylate
(PMMA), polycarbonate (PC), polystyrene (PS), and acrylonitrilebutadiene styrene (ABS).
To increase the knowledge of plastics recycling issues to sound and eclectic viewpoints involving governments and green lobby groups, as well as focusing on a commercial product.

How is polymer waste recycled?

Due to the ideal properties of the thermoplastic polymers such as corrosion resistance, low density,
high strength, and user-friendly design, plastic usage has become much higher than the usage of
aluminum or other metals. For example, density is a very important parameter because it reveals
information about the intrinsic strength of the construction that is supposed to be created, as in the
case of flax reinforcement when PP and LDPE are the best choices (because of their low density) since
its purpose is to produce a composite that is as light as possible.
The glass transition temperature
(Tg) is another characteristic that is very important when studying polymer mechanical properties,
because the flexibility of amorphous polymers is reduced drastically when they are cooled below
Tg. At these temperatures, there are no dimensional changes or segmental motion in the polymer.