This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What are thermal stresses and how are they caused in plastic materials? How can they be relieved? ... (Read 10 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
on: Aug 19, 2018
What are thermal stresses and how are they caused in plastic materials? How can they be relieved?
 
  What will be an ideal response?

Question 2

What is the molecular difference between thermoset and thermoplastic materials?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

frankwu0507

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Aug 19, 2018
Answer to Question 1

Thermal stresses are energy concentrations that are retained in a material resulting from the inability of the material to change shape as would normally occur upon cooling or heating. These thermal stresses can be relieved by slowly heating the material to a moderate temperature

Answer to Question 2

The thermoset materials are crosslinked and thermoplastics are not. This crosslinking raises the total length


kfurse

  • Member
  • Posts: 590
Reply 2 on: Aug 19, 2018
Wow, this really help

Perkypinki

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

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?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Variegated leaves caused by a mutation in cpDNA Variegated leaves caused by a mutation in cpDNA
Disposable plastic cover placed over probe Disposable plastic cover placed over probe
Damage to Field CA1 Caused by Anoxia Damage to Field CA1 Caused by Anoxia
Thermal denaturation of BPTI Thermal denaturation of BPTI
Goiter is an enlarged thyroid gland caused by an iodine deficiency Goiter is an enlarged thyroid gland caused by an iodine deficiency
Vaginal Discharge with Microorganisms Caused by Trichomoniasis Vaginal Discharge with Microorganisms Caused by Trichomoniasis
Video: Cellular Respiration & Glucose Mobilization (Glucose transport & Phosphorylation of Glucose)

For a complete list of videos, visit our video library