Properties of Rubber: Resilience & Applications

In summary, vulcanised rubber is a type of rubber that retains its original shape after being deformed. This is important for tires as it improves stopping ability and prevents slipping on turns. It is also used in children's play grounds for safety reasons. There are both risks and benefits associated with vulcanised rubber, including potential health hazards and improved durability.
  • #1
hancarruthers
3
0
Do you know why it's important for rubber to be resilient?
and does anybody have an example of an object that is made out of rubber which must be resilient?
and does anybody know why it's important why tires and children's play grounds are made from resilient materials?
Many thanks,
 
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  • #2
Resilient means that they retain their original shape after being deformed.

For a tire (which are no longer made from rubber!) you want a deformation where "the rubber meets the road" ... this improves your stopping ability ... and keeps the vehicle from slipping on turns, etc. But you also want it to "return to round" or you will have a bumpy ride.
 
  • #3
Vulcanised Rubber

What implications of physics does vulcanised rubber have?
Basically, what are the risks and benefits of vulcanised rubber?
Many thanks,
 

1. What is the definition of resilience in relation to rubber?

Resilience refers to the ability of rubber to return to its original shape after being stretched or compressed. This property is due to the elastomeric nature of rubber, which allows it to undergo large deformations without permanent damage.

2. What factors affect the resilience of rubber?

The molecular structure and composition of rubber, as well as the processing methods used, can affect its resilience. Generally, rubbers with a higher ratio of crosslinking agents, such as sulfur, exhibit higher resilience. Additionally, the temperature and strain rate also play a role in determining the resilience of rubber.

3. What are some common applications of resilient rubber?

Resilient rubber is commonly used in shock-absorbing products, such as tires, shoe soles, and sports equipment. It is also used in industrial applications, including seals, gaskets, and vibration dampeners. Additionally, resilient rubber is used in healthcare for making prosthetics and medical devices.

4. How does the resilience of rubber compare to other materials?

Rubber has a higher resilience compared to most other materials, such as metals and plastics. This is due to its unique molecular structure, which allows it to stretch and return to its original shape without permanent deformation. However, some synthetic rubbers, such as polyurethane, have higher resilience than natural rubber.

5. Can the resilience of rubber be improved?

Yes, the resilience of rubber can be improved by modifying its composition, such as increasing the amount of crosslinking agents, or by using additives such as plasticizers or reinforcing fillers. Additionally, the processing conditions, such as temperature and curing time, can also affect the resilience of rubber.

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