Nayab Nasir

6 Questions 4 Answers 0 Followers

Questions related from Nayab Nasir

How to identify the selected and the de-selected controllers in an override control ?

I have recently learned the concept of override control in the p&id diagram. I have also learned some typical examples but whenever i come across a new complicated override control I find it...

01 January 2020 1,273 3 View

Explaination of a new peak in the DSC pattern of Pebax 1657 + SSZ-13 zeolite mixed matrix membrane?

I mixed SSZ-13 CHA type zeolite with Pebax 1657 to form mixed matrix membranes. The DSC ( exotherms) patters of MMM have new peaks at 50 to 100C that i cant find the explaination for. Can anyone...

05 May 2019 1,529 2 View

Is SSZ-13 zeolite soluble in water or ethanol ?

Can SSZ-13zeolite dissolve in water or ethanol? If not a solution ,can it make a good dispersion.

03 March 2019 6,192 1 View

Is there any way to purify Matrimide 5218?

Hi, I want to purify Matrimide 5218. Can anyone please suggest me a suitable method to purify it?

12 December 2018 7,838 3 View

Does PMDA-mPD combination works for making Polyimide membrane?

Recently I tried to make a Polyimide PI membrane using Pyromellitic dianhydride (PMDA) and m-phenylene diamine (mPD). Using DMAc as solvent, After reaching Polyamic acid PAA stage i casted the...

10 October 2018 4,877 0 View

How can i purify meta-phenylenediamine (m-PD) ?

I need to purify/recrystallize m-phenylenediamine . Is there any simple method to do it ?

10 October 2018 8,850 6 View