2. Which of the following is a property of thermo setting plastic?
A) Flame resistant B) Non-corrosive
C) Moldable
D)All of the above
Answers
Answer:
The correct answer is: All of the above
Explanation:
Thermosetting plastic :- These are made from long chain of mopecules.They are the rigid structures
These plastics can be shaped into different shapes by heating.
They have low melting point.
They have low tensile strength.
They are recyclable.
They have good electrical properties.
They improve the mechanical properties of material.
They are heat resistance, chemical resistance, and structural integrity.
Such materials have polymers that, during the curing process, cross-link together so as to form an irreversible chemical bond.
Common examples of thermoplastic are :-
polyester, Teflon, polystyrene, and polypropylene.
This plastic is also known as thermoset.
Polymer:-It is a substance consisting of large number of molecules called macromolecules composed of repetiting units.
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Answer:
The correct option for the property of thermosetting plastic among the given options is A) Flame resistant.
Explanation:
However, it is important to note that not all thermosetting plastics possess all the properties listed in the given options.
Thermosetting plastics are a type of polymer that undergoes irreversible chemical reactions when heated, leading to a highly cross-linked three-dimensional network of polymer chains. These highly rigid materials are known for their excellent mechanical, thermal, and chemical properties. Unlike thermoplastics, which can be melted and remoulded, thermosetting plastics cannot be reshaped or remoulded after they are formed.
One of the important properties of thermosetting plastics is their excellent flame resistance. Due to their highly cross-linked structure, these materials do not melt or drip when exposed to high temperatures and do not support combustion. This makes them suitable for use in applications where fire safety is critical, such as in electrical and electronic components, automotive parts, and construction materials.
Other properties of thermosetting plastics include their high strength, stiffness, and dimensional stability, as well as their resistance to chemical corrosion and degradation. However, not all thermosetting plastics are moldable, as they cannot be melted or softened after they are cured. The properties of a particular thermosetting plastic depend on the material's specific chemical composition and cross-linking density.
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