Elmira Tavasoli

11 Questions 10 Answers 0 Followers

Questions related from Elmira Tavasoli

What is the relation between filler-matrix interactiona and its viscosity?

I modifed short carbon fiber and use it in epoxy matrix and I want to know how its modifcation can affect viscosity and how agglomeration can affect viscosity? please introduce some good papers...

08 March 2016 2,000 1 View

How to calculate work of adhesion?

please guide me through this calculation in the attached file, there are two tables as following: table one: Surface energies table two: work of adhesion In addition to this, there is an equation...

19 February 2016 1,029 9 View

How can I use a cross model?

i have viscosity diagram vs shear rate i want to use cross model but i dont know how to calculate the C and m and n zero and n infinity the equation is in the attachment please some body explain...

05 November 2015 9,381 5 View

Which properties are affected by interface in nanocomposites? Flexural or tensile properties?

Dear all, i have done surface modification on graphite nano platelets and i want to use this nanofiller in epoxy resin My SEM micrographs shows that the interface of nanofiller and epoxy resin has...

25 October 2015 3,786 30 View

What is the relation between tensile strength and flexural strength in isotropic material?

hello all, i want to know what the relations between these following parameters are in an isotropic material: 1. relation between tensile strength and flexural strength in isotropic material 2....

21 October 2015 3,518 20 View

How do I calculate flexural (3 point bending) strenght and modulus?

how to calculate Flexural Strength and Modulus? I meant 3 point bending i have done 3 point bending on a composite..... i have my own data here in excel form.... please some body help me and tell...

08 October 2015 238 4 View

How do I synthetize vertically aligned carbon nanotubes ?

i want to synthesis super aligned CNTs (yarns) by chemical vapor deposition but the problem is that the synthesized CNTs aren't vertically aligned...they are horizontally aligned....what is the...

23 June 2015 8,756 7 View

Which acid is better for doping Polyaniline (emeraldine base), HCl or H2SO4?

I know there are different acids for doping PANI but my question is as following: HCl is stronger than H2SO4 but some articles say that H2SO4 is better doping acid for PANI (EB), what is its...

14 March 2015 446 7 View

What is the best doping agent for polyaniline emeraldine base / NMP solution?

Hello every body, issue number one I cast polyaniline emeraldine base/ NMP in petri dish then I would like to doping I know there are many different acids used for doping, please give me priority...

09 March 2015 7,439 6 View

Can anyone help with the doping Polyaniline with HCL?

I have two cases: number one: I doped 20 gr poly aniline film in 20 cc 1 molar HCL for 4 hours. number two: I doped 40 gr poly aniline film in 20 cc 1 molar HC for 4 hours at the same condition as...

07 March 2015 1,340 4 View

What is the effect of HCl concentration and doping time on PANI film conductivity?

i disperse PANI (emeraldine base) in NMP (100 mgr of PANI in 3 ml NMP) then i dry the glass petri dishes containing the above solution (110 oC for 4hours) the final step i have only HCl i want to...

25 February 2015 4,294 14 View