Rayon - semi synthetic polymers, Chemistry

Assignment Help:

Rayon - Semi Synthetic Polymers

Rayon is a man made material which contains purified cellulose in the type of long fibres. Cellulose is reacted along with cold NaOH solution to cleanse it and then treated along with CS2 to form a viscose solution. This is the reason why rayon is sometimes described as viscose rayon. This solution is provided to go through fine pores in metal cylinder, into a dilute H2SO4. This generates in the creation of long fibres. Rayon fibre is chemically identical to cotton but has a shine such as silk. As such rayon is as well described as artificial silk. Rayon is required on a big scale for making textiles, tyre-chord, surgical dressings and carpets. Not similar to fully synthetic polymers, it takes moisture and is bio-degradable.


Related Discussions:- Rayon - semi synthetic polymers

Explain critical angle, Critical Angle: The particular angle of inciden...

Critical Angle: The particular angle of incidence at which angle of refraction becomes 90 is known as critical Angle and it is denoted by  θc

Number of unpaired electrons, The number of unpaired electrons in Fe 3+ (Z...

The number of unpaired electrons in Fe 3+ (Z= 26)  are: (1) 5        (2) 6        (3) 3        (4) 4 Ans: 5

D-bock elements, color formation of d-block elements

color formation of d-block elements

Experiment of an air oven, An air oven A large tin can is used as an a...

An air oven A large tin can is used as an air oven. A hole through the lid fitted with a cork holds a thermo- meter, and the saucer or dish rests on a wire gauze bridge placed

Determine electronic configuration, Electronic configuration  1s 2 2s 2 2...

Electronic configuration  1s 2 2s 2 2p 6 3s 2 3p 6 3d 5 4s 1   represents: (1) Ground state (2) Excited state (3) Anionic state (4) All of these Ans:  Ground

Units of hardness and their relationship, Q.   Write short note on units of...

Q.   Write short note on units of hardness and their relationship. Sol. Units of hardness and their relationship. (1)         Parts Per million (ppm): It is defined as t

Calculate ionic products of water(kw) at a given temperature, It looks at h...

It looks at how the ionic product varies with temperature, and how that ... page, we shall calculate the concentration of hydroxonium ions present in pure water. Kw is called

Perfect gases - states of matter, A gas is a fluid. It has no resistance to...

A gas is a fluid. It has no resistance to change of shape and will expand indefinitely to fill any container in which is held. The molecules or atoms which make up a gas interact o

Explain pauli exclusion principle, Q. Explain Pauli Exclusion Principle? ...

Q. Explain Pauli Exclusion Principle? When assigning electron configurations, it is essential to consider the two important principles concerning electrons in orbitals:

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd