Rezvan Sharifi

7 Questions 20 Answers 0 Followers

Questions related from Rezvan Sharifi

Cuold you please give me a suggestion abuot this spectrum?

i did an spectrum FTIR of resin that i dont know that cuold you please help to interpration? Thanks in advance

09 May 2023 3,131 0 View

To make flexible polyurethane foam, necessary to observe the mixing process?

To make flexible polyurethane foam, necessary to observe the mixing process? I want to know , the oxygen of the air accumulates in the mix? How is the condition of mixing? Thank you Rezvan

21 June 2016 8,676 7 View

Who can help me on polyurethane foam that does not remain stable?

What happens when I make polyurethane foam, and the foam does not remain stabl? Thank you

18 January 2016 7,209 7 View

How do I dissolve a polyester urethane resin after it has hardened?

If I dissolve a polyester urethane resin in THF, not distruge bonding resin? Or as another alternative ?

21 December 2015 7,882 4 View

How can I choose between 3 silanes I have for the production of polyurethane ?

I have three methoxy sialno ; Aminoethyl , aminopropyl - trimethoxysilane and propylmetaacrylate trimethoxysilane and 3 - aminopropyl - trimethoxysilane Which of the three and sarabbe better? And...

25 August 2015 8,373 21 View

How can I calculate the molar ratio for the components of a polyurethane in a stoichiometric value?

How to calculate the molar ratio for the components of a polyurethane in a stoichiometric value? For example, if I have: Trifunctional polyolPPG (MW = 1000 g/mol) Diisocyanate (MW = 250 g/mol)...

28 July 2015 9,496 11 View

Who can give some information on siloxane resins?

Hello friends siloxane resins are thermosetting?what type of polymerization you can have? Thank you

01 January 1970 7,524 3 View