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

How to measure the hardness for PLA & PHAs polymers?

Hello, I am a bit confused on whether to follow ASTM D785 (Standard Test Method for Rockwell Hardness of Plastics and Electrical Insulating Materials) or ASTM D2240 (Standard Test Method for...

21 January 2021 7,487 4 View

How to create suspended particles flow and simulate distribution in a chamber using CAD software?

Allow me first to apologize in advance for the long post. I have tried to keep it right-to-the-point as possible!. Objective To simulate suspension of solid particles using CAD software/create...

12 January 2021 6,389 2 View

How to properly purge an injection molding machine?

Hello, We're trying to purge a mini injection molding machine after not using it for a while now. The resin inside is PHA and can be some PLA left over as well. We've tried using a purging...

08 October 2020 4,659 5 View

How we could modeling orthotropic membrane elemnt in SAP2000?

I am trying to model steel plate shear walls in SAP 2000. First I should define an orthotropic steel material and define nonlinear parameter of it ( Stress-Strain curvature) in somehow to neglect...

22 May 2020 4,250 0 View

Hi,What is the names of all organic laser dyes?

Hi,What is the names of all organic laser dyes?

16 April 2020 3,543 11 View

Test aluminium foil If it has traces of rolling oil that could affect the coating adhesion?

I have to work with Aluminium foil (8079alloy- 38 micrometer thickness) , in the last months we encountered an adhesion problem between the aluminium and the coating materials (primer), so I think...

10 March 2020 2,739 10 View

How to calculate the surface area of the nanoparticles mathematically?

Please answer with equations or research that prove this

06 March 2020 7,428 3 View

Diabetes Locus of Control Scale?

Hi everyone. I am conducting a research study to explore the relationship between emotion-related variables such as locus of control and diabetes-related outcomes. However, I am not able to find...

29 February 2020 7,814 3 View

How to determine the initial phase angle in the SRF-PLL?

Dear all, My question is regarding the synchronous reference frame phase-locked loop (SRF-PLL), as discussed in the book "Doubly fed induction machines:Modelling and control for wind energy...

26 November 2019 1,829 5 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

How can we obtain a modification factor for creep parameters?

I want to obtain standard creep parameters of salt rock by creep parameters of rectangular samples. Is there a modification factor to convert creep parameters of rectangular (prismatic) rock salt...

01 March 2021 7,131 1 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View

How can I remove deep eutectic solvents from the medium?

Dear researchers, How can I remove deep eutectic solvents from the medium? You know, generally, deep eutectic solvents consist of ammonium salts and an acid group. Is there any alternative method...

22 February 2021 3,275 3 View