Answer
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Hint: By applying heat we can change the shape of some plastics, those plastics are called thermoplastic. We can’t convert a few plastics into different shapes by applying heat, those plastics are called thermosetting plastic.
Complete step by step solution:
Thermoplastic polymers
● Thermoplastics are the polymers that possess intermolecular forces of attraction between elastomers and fibers.
● Thermoplastics are linear or slightly chain polymers.
● Thermoplastics have the capability to soften on heating and hard on cooling.
● Examples for Thermoplastics are Polythene, Polypropylene, Polystyrene, Polyvinyl chloride (PVC), etc.
Thermosetting polymers
● Thermosetting polymers are the cross-linked polymers and heavily branched chains.
● Thermosetting plastics on heating go through extensive cross-links in molds and over again become infusible.
● Thermosetting polymers cannot be reshaped.
● Examples of Thermosetting polymers are Bakelite, Urea-formaldehyde resins etc.
Additional information:
● Bakelite is a thermosetting plastic, due to its high resistance to electricity and heat it is used in industrial applications.
● Due to its good insulating property, it is used in the manufacture of switches and other electrical appliances.
● Bakelite is also used to prepare numerous kitchenware products such as frying pans etc.
● The other name of Bakelite is phenol-formaldehyde polymer because phenol and formaldehyde are the monomeric units to prepare Bakelite.
Note: Don’t be confused with the words thermoplastic and thermosetting plastic.
Thermoplastic can be reshaped any number of times by applying heat but thermosetting plastics can’t be remolded or reshaped by applying heat.
Complete step by step solution:
Thermoplastic polymers
● Thermoplastics are the polymers that possess intermolecular forces of attraction between elastomers and fibers.
● Thermoplastics are linear or slightly chain polymers.
● Thermoplastics have the capability to soften on heating and hard on cooling.
● Examples for Thermoplastics are Polythene, Polypropylene, Polystyrene, Polyvinyl chloride (PVC), etc.
Thermosetting polymers
● Thermosetting polymers are the cross-linked polymers and heavily branched chains.
● Thermosetting plastics on heating go through extensive cross-links in molds and over again become infusible.
● Thermosetting polymers cannot be reshaped.
● Examples of Thermosetting polymers are Bakelite, Urea-formaldehyde resins etc.
Additional information:
● Bakelite is a thermosetting plastic, due to its high resistance to electricity and heat it is used in industrial applications.
● Due to its good insulating property, it is used in the manufacture of switches and other electrical appliances.
● Bakelite is also used to prepare numerous kitchenware products such as frying pans etc.
● The other name of Bakelite is phenol-formaldehyde polymer because phenol and formaldehyde are the monomeric units to prepare Bakelite.
Note: Don’t be confused with the words thermoplastic and thermosetting plastic.
Thermoplastic can be reshaped any number of times by applying heat but thermosetting plastics can’t be remolded or reshaped by applying heat.
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