« previous next »

Author Question: How is modulus likely to be affected when toughness modifiers are added to a plastic? Why? What ... (Read 58 times)

jessicacav

  • Hero Member
  • *****
  • Posts: 558
on: Aug 19, 2018
How is modulus likely to be affected when toughness modifiers are added to a plastic? Why?
 
  What will be an ideal response?

Question 2

Explain the effects of crosslinking on the glass transition temperature.
 
  What will be an ideal response?


xiaomengxian

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Aug 19, 2018
Answer to Question 1

Modulus will likely be reduced because the toughness modifiers will have longer elongations than will the base polymer and will therefore decrease stiffness

Answer to Question 2

Crosslinks tie the molecular chains together and make long-range movements more difficult. Therefore, as the amount of crosslinking increases, the glass transition temperature should also increase.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Chest X-ray. A physician is examining chest X-rays with the aid of a plastic model of the bronchial Chest X-ray. A physician is examining chest X-rays with the aid of a plastic model of the bronchial
CPT Modifiers Used for Medical Office Services CPT Modifiers Used for Medical Office Services
Splash blending occurs when the ethanol is added to a tanker with gasoline and is mixed as the ... Splash blending occurs when the ethanol is added to a tanker with gasoline and is mixed as the ...
Nonfat Milk with added protein Nonfat Milk with added protein
Plastic Container Expiry Date Plastic Container Expiry Date
Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ... Determine the mass of a nonvolatile, nonionizing compound that must be added to 4.76 kg of ...
Video: Hormones and the menstrual cycle Animation

For a complete list of videos, visit our video library