Manas Sarkar

12 Questions 31 Answers 0 Followers

Questions related from Manas Sarkar

Why air bubble mix with polymer in melt spinning?

I want to know, why the air bubble mixes with a polymer. Although we thoroughly dried the PET chips, but see a lot of air-bubble at the outlet with molten PET before the spinning plate. What is...

23 December 2019 6,301 2 View

What is the difference between filament grade and bottle grade PET?

I want to use high viscosity polyester for making filament for special textile applications. Is it possible to get a high viscous PET chip for filament grade? I like to know what is the difference...

16 December 2019 2,563 1 View

Do You have any idea about the problem of Paraffin based PCM after prolonged heating?

I heated C14-C16 based PCM materials at 142 Degree C for a few hours, I observed that carbon formed over the PCM materials. The boiling point of the PCM materials is around 310 Deg C. Anybody can...

21 October 2019 9,994 0 View

What is the most efficient way to prepare PU solution using alcohol?

I want to make dehydrated PU solution for coating nano-silicon, which reacted with water. Is it possible to get alcohol based PU solution? Any paper or suggestion will be appreciated....

30 November 2016 9,897 2 View

How long silver powder remain effective for antibacterial property in air?

Can anyone give me idea, how the silver powder remain in ion form in different antibacterial powder? Also I like to know, how much time it needs to change to silver molecule, if kept in air or...

06 September 2016 6,268 0 View

Is it possible to deposite silicon on cotton fabric?

Hi I like to know, is it possible to deposit silicon on cotton fabrics using vapor deposition method? I shall be glad, if you kindly share any related paper.

20 July 2016 9,340 2 View

Is there any formula to determine maximum strength of a yarn?

I'm interested to know, whether there is any formula to determine the maximum strength of a yarn for different counts, different materials and staple length...

04 November 2015 5,199 6 View

I am searching some permanent cool feel chemical product for cotton fabrics. Could anyone suggest any such products?

I am searching some permanent cool feel product for cotton fabrics. Could anyone suggest any such products? I shall prefer a product with zinc or Zinc oxide presence. Any branded product is ok for...

18 June 2015 5,099 6 View

How does surface porosity change for hollow fibers compared to the the solid ones of the same polymer?

How surface porosity(size and number) changes for hollow fibers against the solid one of same polymer? I'm interested to know about the water absorption property of solid and hollow...

07 May 2015 6,129 2 View

Could anyone suggest a permanent fire retardant proof finish (in garment form) for flash fire?

I want to apply permanent fire retardant/proof finish, for flash fire, in garment form. Could anyone suggest me for the same.

12 February 2015 7,789 2 View

Is there any permanent fire retardant finish for cotton that will NOT affect the absorption property?

We are searching for some fire-retardant chemicals, which gives permanent fire retardant property, but will NOT affect the natural hydrophilic property and permeability of cotton fabric. Could...

22 January 2015 7,999 3 View

Could anyone suggest how we can easily calculate spinning plate pressure drop, for melt spinning?

I've Zero-shear viscosity and density of polymer at different temperatures. I would be happy if you can suggest a process for hollow fibers.

05 June 2014 4,503 0 View