How can we get average velocity of of open channel by integrating over the channel height and length?

I am following one paper about the "Electrokinetic actuation of low conductivity dielectric" but did not understand the equation 35 derivations. Can anyone please help me to find Maxwell gradient...

01 February 2020 9,439 3 View

Is it possible to get 1700 v from 25 mm^2 area from tribo nanogenerator?

I am following this paper but the results are too high to get from mentioned data? Can anyone guide me about this? Carbon Electrodes Enable Flat Surface PDMS and PA6 Triboelec...

04 May 2019 2,716 1 View

I am following one paper about Tribo Electric Nano generator but getting 10000 times less results?

I have followed all the parameters and also changed them as well. But still values are 10000 times lower than the published one. I have focused on 1. Thickness of surfaces 2. Contact area 3....

04 May 2019 5,606 0 View

How can I measure or check the adhesion( interface force) between cured consecutive layers of PDMS?

Let suppose we make a PDMS lines( 50um) on glass/PET substrate and after fully curing PDMS, we cover the PDMS lines by spin coating with PDMS and again cured the whole sample. Now, how can I...

02 March 2019 3,033 4 View

Why DMA(Dynamic mechanical analysis) results of shape memory polymers are showing odd behavior?

04 May 2017 6,024 4 View

Whats can be expected applications of 2 different shape memory polymers layered one another?

Dear all, If we have 2 different shape memory polymers with different glass transition temperatures, layered one another along the thickness, then what can be expected applications? What can be...

03 April 2017 9,922 1 View

How wave length dimension play a role in curing time for 3D printing?

I am trying to cure my photo polymer using SL 3D printing technique, but material is not being cured by UV light of 405 nm. What type of parameters should be changed to cure my material?

31 December 2016 5,130 1 View

Can we fabricate four different polymers using 3D technique?

11 December 2016 8,479 0 View

Which type of methods can be used to fabricate a functionally graded polymer?

Let suppose, we have two type of materials, one is in liquid shape and other one is in powder shape, is it possible to make FGM type structure?? IS possible then how can we proceed?

09 October 2016 4,353 1 View

What is difference between graphite and CNT in terms of mechanical properties?

Dear researchers, How can we differentiate CNT and graphite without characterization techniques like SEM, XRD??

09 October 2016 8,427 2 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How do I determine the degree of polymerization of PEG 400 based on NMR integration?

Hello, I am working on the photocatalytic degradation of PEG 400. I would like to know if it's possible to determine the degree on polymerization based on NMR integration, or by the MW of the...

02 March 2021 6,186 3 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

POlymer+DMSO solution and moisture??

What could be the reason of moisture at the sides of Vial when I am preparing my polmyer+DMSO solution for membrane fabrication? What etiquettes I am possibly missing here?

28 February 2021 6,516 5 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to reduce residual stresses in MD simulation?

I am working on a preparation of representative polymeric structures of some popular polymers, such as polyimide or PTFE for MD simulation, during which a single nitrogen or oxygen atom will be...

24 February 2021 8,105 3 View

How to identify what type of fillers are in a polymer?

Hello everyone, I have some PHAs blended with fillers and nucleating agents, yet I don't know what kind of fillers or nucleating agents. The producer has shut down and there's no way to get in...

24 February 2021 1,356 8 View