How can I choose the time and temperature suitable to bake a polyurethane resin?
thanks
Who can give me an indication, how can I compare a physical and mechanical character with an elastomeric polyurethane resin and a sufficiently flexible thermoplastic? Thanks in advance
07 August 2017 3,910 0 View
how can i conversion CPS unite of measure to SV or mSV? Thank you in advance
05 June 2017 8,317 0 View
Who knows, except styrene monomer another solvent for polyester Resin? Thanks you
01 February 2017 7,133 0 View
Who knows a silicone resin powder which had a melting point of about 200 degrees or even less? Thanks
11 December 2016 1,642 0 View
Who knows why the Hf acid hold in a plastic bottle? thanks in advance
07 August 2016 7,413 0 View
I want to make a flexible polyurethane foam, but I find many holes in the foam, how can I delete them? And have a smooth foam? Thanks a lot
05 June 2016 1,107 7 View
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
05 June 2016 5,104 8 View
Who can help me to find a highly volatile and even polished metal surface. Thanks
02 March 2016 7,018 0 View
Why the polyurethane foam clings to the side?Also used stabilizing! Thanks a lot
01 February 2016 6,399 3 View
I have a powder copper color, but not is copper, a very fine powder and insoluble in water, in the acid does not give me blue green.Cerium may be ?? Tanks a lot
31 December 2015 301 0 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
I am planning to collect human fecal samples for metatranscriptomic analysis using MGI. These samples are from indigenous people living in a region with high temperatures. I will have access to a...
06 August 2024 1,367 3 View
During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...
06 August 2024 726 3 View
A typical reforming section in a large-scale Haber-Bosch process (Figure 1) comprises two reactors. A mixture of methane (CH4) and steam (H2O) is fed into a primary reformer to produce syngas via...
01 August 2024 7,051 5 View
Hello! I am trying to calculate the sumatriptan molecule, but it has been counting for five days and it does not stop. It seems to me that it is too long and I am doing something wrong. Please...
25 July 2024 3,364 5 View
Hello everyone, I am currently working on a protein that is 10x his-tagged and positively charged (predicted pI=10.16). But when I tried to use Ni-NTA column to purify the protein, it's not...
24 July 2024 7,293 4 View
The resin bonded carbon containing refractories are aged before use. How time of aging is determined? And mechanism behind aging.
23 July 2024 3,205 0 View
Hello, I am experiencing an issue with mixing micro powder with resin in a 3D printer. The problem is that sedimentation occurs after a short period (about half an hour to an hour). Could you...
23 July 2024 1,672 0 View
Greetings. I’m currently running a nested pcr for giardia. My mastermix comprised of 3mM Mgcl2, 5unit of taq polymerase, 0.2uM of forward and reverse primers each respectively and 0.2mM of dNtp...
22 July 2024 9,761 5 View
https://en.wikipedia.org/wiki/Viscosity
21 July 2024 3,089 4 View