Question

What is the pecursor for making PAN carbob fibers?

What is the pecursor for making PAN carbob fibers?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Carbon fibers are made from carbon filament which is produced from a polymer like polyacrylonitrile (PAN), rayon, or petroleum derived pitch. These sources are called as a precursor for carbon fiber. First step is to spun the precursor into filament yarns, using chemical and mechanical processes. Among these PAN is a versatile polymer used to produce large variety of products. Towards this, PAN is first thermally oxidized in air at ~230 oC to form an oxidized PAN fiber and then carbonized above ~1000 oC in inert atmosphere to make carbon fibers which is suitable for making of high-tech and common daily applications.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
PAN is spun into fibers using wet-spinning. What are the advantages and disadvantages of wet-spinning.
PAN is spun into fibers using wet-spinning. What are the advantages and disadvantages of wet-spinning.
Write psuedo code to accomplish making an omelette, in a frying pan on a gas-or-electric stove.
Write psuedo code to accomplish making an omelette, in a frying pan on a gas-or-electric stove.
A random sample of 10 fibers is taken from a collection of 92 fibers that consists...
A random sample of 10 fibers is taken from a collection of 92 fibers that consists of 43 fibers of polymer A, 17 fibers of polymer B and 32 fibers of Polymer C. What is the probability that the sample contains at most three fibers of polymer B? 0.1964   c. 0.0836   e. 0.7465 0.9164   d. 0.8036 What is the probability that the sample contains three fibers of polymer A, three fibers of polymer B, and four fibers of polymer C?...
Pan American​ Airlines' shares are currently trading at ​$69.47 each. The market yield on Pan​ Am's...
Pan American​ Airlines' shares are currently trading at ​$69.47 each. The market yield on Pan​ Am's debt is 4​% and the​ firm's beta is 0.7. The​ T-Bill rate is 4.25​% and the expected return on the market is 9.5​%. The​ company's target capital structure is 45​% debt and 55​% equity. Pan American Airlines pays a combined federal and state tax rate of 25​%. What is the estimated cost of common​ equity, employing the constant growth dividend discount​ model? Assume that...
norepinephrine releasing fibers are classified as cholinergic fibers true or false
norepinephrine releasing fibers are classified as cholinergic fibers true or false
The mean daily evaporation for the 10 days on which Pan A was used was 19.10...
The mean daily evaporation for the 10 days on which Pan A was used was 19.10 mm, and the mean evaporation on the 10 days on which Pan B was used was 17.24mm. The variance estimated from the sample from Pan A is 7.72 mm2 , and the variance estimated from the sample from Pan B is 5.36 mm2 . Assuming that these two samples come from normal distribution with equal variances, (a) Does the experimental evaporation pan, Pan A,...
what is the role of spindle fibers during cell division
what is the role of spindle fibers during cell division
if a stove supplies the same amount of heat to both an iron pan and a...
if a stove supplies the same amount of heat to both an iron pan and a copper pan of equal masses, which pan will be at a higher temperature after heating for 5 minutes?
A massless pan hangs from a spring that is suspended from the ceiling. When empty, the...
A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50 cm below the ceiling. If a 100 g clay ball is placed gently on the pan, the pan hangs 60 cmbelow the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. Part A What is the pan's distance from the ceiling when the spring reaches its maximum length? Express your answer to two significant figures and...
what muscle fibers would you want in your soles muscles?
what muscle fibers would you want in your soles muscles?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT