Easiest Core-shell electrospinning

More Tran Khanh's questions See All

How does this Adsorption device work?

This is a diagram of an adsorption device with 2 adsorption columns, the input air is to the far left and the product is on the top right corner. Can someone tell me its working principle?

11 April 2020 2,066 0 View

How can I dissolve Polystyrene for electrospinning?

I read a paper, that said they had dissolved PS by putting 7.5wt% PS in 46.25wt% HFIP and 46.25wt% DMF, stirring overnight. Is that true? How can I dissolve PS for electrospinning?

01 January 1970 9,930 3 View

Oligomerization of TiO2 in the limonene oxidation process

I started the limonene oxidation process inside an autoclave at 150 Celsius Degree, TBHP as initiator, solvent: ethanol. However, the GC-MS showed the oligomerization of TiO2. As far as I know,...

01 January 1970 6,434 0 View

How to electrospin PDMS?

Would you kindly show me how to electrospin PDMS? I have never learnt about this technique, thank you.

01 January 1970 9,851 2 View

Electrospinning pump malfunction

According to some advises on researchgate, I bought another electrospinning pump for the co-axial technique. However, after I had installed it, the axle still rotated yet the square was not moving...

01 January 1970 6,572 0 View

Limonene to limonene glycol

I am doing experiments about oxidation process from limonene to limonene glycol, but the product are some limonene oxide (which I don’t want). These are the chemicals I have: -Catalyst: CuY...

01 January 1970 7,710 5 View

How can I dissolve PVDF in optimal condition? (ratio, temperature, time, stirring speed?)

I am making PVDF solution for electrospinning, I only have DMF and acetone as solvents, so can you tell me the optimal conditions for this process? (ratio, temperature, time, stirring speed). Any...

01 January 1970 3,117 6 View

Triboelectric nanogenerator low current.

My TENG (PDMS-Copper) can fabricate about 24 Volts by 2.45 N at the frequency of nearly 1 Hz. However, the average current value is only about 100 nA. How can I increase the current, I only need...

01 January 1970 245 4 View

Simple self-healing Diels-Adler processes.

Hi, can you kindly provide me with some simple processes for fabricating a self-healing film based on Diels-Adler reaction? I have already known about the basic principle, diene with dienophile...

01 January 1970 8,884 1 View

Optimal Nylon 6,6/Formic Acid Electrospinning Set up.

Can someone give me some parameters about the electrospinning process of the Nylon 6,6/Formic Acid solution? (concentration, flow rate, Voltage, etc.) I tried Nylon/Formic Acid 20wt% (4 grams...

01 January 1970 7,101 11 View

Polymer wear calculation?

What is the method for analytically calculating the wear and service life of polymer-polymer sliding pairs?

04 August 2024 1,078 1 View

How to explain the different interaction between soluble and insoluble polymer in water?

Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.

29 July 2024 6,350 3 View

How can the rubber fibres produced by the electrospinning device be removed from the fibre collect(aluminium foil) ?

How can the rubber fibres produced by the electrospinning device be removed from the fibre collector (aluminium foil) without affecting the orientation of the rubber fibres for use in reinforcing...

26 July 2024 8,281 0 View

How to get LP fiber modes directly from Comsol?

Hi there, I'm new to modelling with comsol. I would like to ask if it is possible for comsol to output linearly polarized (LP) modes? I tried modelling a simple single mode fiber with an enlarged...

23 July 2024 4,019 3 View

What is the difference between coordination polymer, MOFs, MCOFs?

Wherever I have referred, it puts me in a dilemma about the exact differences between these. It would be really helpful if someone can put me out of this trouble.

21 July 2024 3,045 3 View

Appearance of crystallization peak in heating cycle of DSC test?

For which types of polymers, the crystallization peak in heating cycle of DSC test can be observed and for which types cant? In another word, when this exothermic crystallization can be observed...

18 July 2024 348 3 View

Interpreting ATR-FTIR Spectra for Microplastics Research?

Hello everyone, I am currently pursuing a PhD in Environmental Engineering with a focus on microplastic studies. My background is in Civil Engineering, and I am relatively new to working with...

18 July 2024 7,258 3 View

How do you decide an optimal AC amplitude for non-faradaic electrochemical impedance spectroscopy?

I work with planar interdigitated electrodes (IDEs). The finger width and the spacing between the fingers are 5 micron. The surface of the IDEs is coated by a non-conductive polymer layer...

16 July 2024 5,031 1 View

Why am I seeing only one initial maximum in torque-time curves for the fusion of PVC in a Brabender?

We're studying the stability and fusion behavior of multiple PVC compounds in a Brabender. After a few trials, we set the temperature at 195 °C and the rotor speed at 70 rpm. Samples differ in...

12 July 2024 2,768 1 View

How to solve Bubble Error in fiber splicing?

I'm having a bubbling error while splicing 100/350 um optical fiber (core/cladding) on the Fujikura FSM100P+. I have tried some ways such as changing Prefuse power and Prefuse time but to no...

03 July 2024 7,463 6 View

Jomit T Mathew

PMMA for shell, PEO for core

Tran Khanh

Jomit T Mathew Thank you very much.

José Ermesto Dominguez-Herrera

Probably, if you want to test your device, you could replicate "Article Preparation of PVDF/PVP core–shell nanofibers mats via homog...

" and compare your results with the article.

If you want a special system, we can collaborate. I produce core-shell nanofibres by Solution Blow Spinning. We can get in touch and determinate a system to compare.