Elastomer (Rubber) Video Lecture | Chemical Technology - Chemical Engineering

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FAQs on Elastomer (Rubber) Video Lecture - Chemical Technology - Chemical Engineering

1. What is an elastomer?
Ans. An elastomer is a type of polymer that exhibits elastic behavior, meaning it can stretch and return to its original shape after being deformed. It is commonly known as rubber and is used in various applications due to its high elasticity and resilience.
2. How are elastomers produced?
Ans. Elastomers are produced through a process called vulcanization. During vulcanization, raw rubber is mixed with various chemicals, such as sulfur, accelerators, and activators. The mixture is then heated, causing a chemical reaction that crosslinks the polymer chains, resulting in the formation of a three-dimensional network structure with improved elasticity and strength.
3. What are the main applications of elastomers?
Ans. Elastomers are widely used in various industries due to their unique properties. Some common applications include tires for vehicles, seals and gaskets for machinery, shoe soles, conveyor belts, and medical devices such as gloves and catheters. Elastomers are also used in the production of adhesives, coatings, and insulation materials.
4. How do elastomers compare to other types of polymers?
Ans. Elastomers differ from other polymers, such as thermoplastics and thermosets, in their ability to undergo large elastic deformations. Unlike thermoplastics, elastomers do not melt when heated but instead soften and retain their elastic properties. Unlike thermosets, elastomers can be stretched and return to their original shape without undergoing permanent deformation.
5. What are the factors that influence the mechanical properties of elastomers?
Ans. Several factors influence the mechanical properties of elastomers. The crosslink density, which is the number of crosslinks in the polymer network, affects the stiffness and strength of the elastomer. The type and amount of fillers added to the elastomer can also alter its properties. Additionally, temperature and strain rate can impact the elasticity and resilience of elastomers.
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