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How is carbon fibre manufactured?

How is carbon fibre manufactured? Correct Answer Thermal degradation of PAN

Industrial manufacture of carbon fibre is based on the thermal degradation of non-melting organic polymers such as polyacrylonitrile (PAN). Mechanical properties attainable with carbon fibres is dependent upon the crystallinity.

Related Questions

Low quality of jute fibre is attributed to
1. Discoloration of fibre
2. Very short fibre strands
3. Reduction of cellulose in fibre
4. Reduction of cell wall strength over-retting decreases the fibre quality due to
Select the correct answer:
The pic chart given below shows the number of bulbs manufactured by a company in 6 years. The number of bulbs manufactured in a particular years is shows as a percentage of total number of bulbs manufactured in 6 years. If the total number of bulbs manufactured in 6 years is 100000, then what is the difference in the number of bulbs manufactured in year Y3 and Y5?
Which one of the following statement is/are incorrect with respect to fibre intake in animals? 1. Forage dry matter consumption should be near 2% of the body weight. 2. At least 21-25% acid detergent fibre should be in the total ration. 3. At least 28-30% neutral detergent fibre should be in the total ration. 4. Provide at least 3 Kg of fibre a day.
A glass fibre reinforced epoxy composite is made with 60 wt.% unidirectional continuous glass fibres. The elastic moduli of the glass fibre and the epoxy matrix are 72.5 and 2.4 GPa, respectively. What is the elastic modulus of this composite along the fibre direction, in GPa? The densities of glass fibre and epoxy are 2.58 g/cm3 and 1.14 g/cm3, respectively
Consider the following statements.
1. Fibre optics is based on the principle of total internal reflection.
2. In an optical fibre communication system, power consumption is extremely low
3. Optical fibre communications are free from radio frequency interference.
4. In India, Reliance Group of Industries is engaged in the manufacture of the optical fibre.
Which of these statements are correct?
The table given below shows the number of cars manufactured by 7 different companies in a month. Companies Number of Cars C1 2600 C2 3200 C3 4200 C4 1800 C5 2200 C6 2800 C7 3500 Which of the following statement(s) is/are correct? I. Ratio of number of cars manufactured by company C4 to the number of cars manufactured by company C6 is 9 : 14 respectively. Il. Average number of cars manufactured by per company is 2900. 
The bar graph given below shows the total number of cars manufactured by two companies A and B for the 5 given years. J1 = Difference between the total number of cars manufactured by company A and the total number of cars manufactured by company B in all five years together J2 = Average number of cars manufactured per year by company A for the given period What is the value of J2 – J1?
The different numbers of cars manufactured by a different company in a month. This is shown by the pictograph given below. Name of the company Number of cars manufactured Hyundai Toyota Mahindra Tata motors Maruti Suzuki 1  represents 1000 cars How much percentage of Maruti Suzuki car manufactured is more than Hyundai car manufactured?
Study the line graph and answer the question that follows. The line graph represents the number of vehicles (in thousands) manufactured by two automobile companies A and B over the years from 2010 to 2015. The X-axis represents the years and the Y-axis represents number of vehicles in thousands. (The data shown here is only for mathematical exercise. They do not represent the actual figures of the country.) Company B is projecting an increase in the number of vehicles to be manufactured in 2016 by 70% with respect to its average number of vehicles from 2010 to 2015. What should be the approximate percentage increase in the number of vehicles (in thousands) to be manufactured by Company A in 2016 with respect to the number of vehicles in 2015, so that it is at par with Company B?
Study the line graph and answer the question that follows. The line graph represents the number of vehicles (in thousands) manufactured by two automobile companies A and B over the years from 2010 to 2015. The X-axis represents the years and the Y-axis represents number of vehicles in thousands. (The data shown here is only for mathematical exercise. They do not represent the actual figures of the country.) The average value of the vehicles manufactured by Company A is what per cent of the average value of the vehicles manufactured by Company B during 2010 to 2015?