Question

Statement: The articles made of thermoplastics can be recycled whereas the articles made of thermosetting plastics cannot be recycled.
State whether the given statement is true or false.
True
False

Answer 1

The concept which is used to solve this question of thermosetting and thermoplastic polymer is the internal structure of both this polymer. Thermoplastics are the polymer in which linear or slightly branched long chain molecules are present while in Thermosetting polymer, there is a cross linked or heavily branched structure is present.

Complete step by step answer:
Thermosetting plastics are made up of long chains of molecules that are cross-linked. They have a very hard structure. Once heated, thermosetting plastics can be moulded, shaped and pressed into shapes. Once set they cannot be reheated since they are permanently set. Hence the process of heating in thermosetting plastics is irreversible.
Plastics are one of the most common materials used in manufacturing goods today, from the keyboard you’re typing on, to the International Space Station – plastics are everywhere. Thermosets are unique and quite different from traditional plastic materials such as thermoplastics. Unlike old thermoplastic parts that melt and disfigure when exposed to extra heat, thermoset components as implied by their name become set in their physical and chemical properties after an initial heat treatment and therefore are no longer affected by additional exposure to heat. The process is very similar to hard boiling an egg. Once the egg is boiled, additional reheating does not cause disfiguration – like the curing process connected with a thermoset part. After initial heat forming, thermoset material’s ability to show resistance to heat, corrosion, and mechanical creep make them perfectly suitable for usage in components that need tight tolerances and excellent strength-to-weight characteristics, while being exposed to elevated temperatures. Given below is the basic structure of a thermosetting plastic.

From plastic containers, bottles, and life-saving medical devices to aerospace components, plastics are a material that is used in applications all around us. Thermoplastic polymers are one such type of plastic which is known for its versatility and recyclability. Thermoplastic polymers form when repeating units called monomers linked into chains or branches.

Thermoplastic pellets soften when heated and become more fluid as more heat is administered. The curing process is $100$ reversible as no chemical bonding takes place. This typically allows thermoplastics to be remolded and recycled without affecting the material’s physical properties negatively. Variety of thermoplastic resins offer several performance benefits, but the majority of materials usually used offer high strength, shrink-resistance, and easy flexibility. Depending on the resin, thermoplastics can serve low-stress applications such as plastic bags or can be used in high-stress mechanical parts. Examples of thermoplastic polymers include polyethylene, PVC, and nylon.

Hence, the correct option is false.

Note: Plastics and composite materials provide more efficient engines, improved aerodynamics and reduced aircraft weight to the aerospace industry.
PVC is made into blood bags and plasma bags, ensuring safe and hygienic storage of blood products.