TiO2 gives stability and prevent degradation of sample when exposed to light. But why is it added in aliphatic polyurea if aliphatic polyurea is already light stable? How does this make aliphatic polyurea more advantageous than aromatic polyurea?
NCO content of IPDI(isophorene diisocyanate) is 37.5%...Some papers claim that the NCO content after mixing this IPDI with D-2000 in 1 to 1 ratio results in 15%.... How do I calculate this?
07 August 2019 5,667 2 View
In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...
03 March 2021 1,682 3 View
Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....
02 March 2021 7,890 2 View
When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...
27 February 2021 6,326 2 View
Dear all, I am trying to perform a MD simulation about the interaction between CO2 and a polymer. I create my model, solvate it and perform the NVT and NPT equilibration. Now I am not able to...
26 February 2021 10,014 3 View
Has anyone ever tried to deliver CO2 with a CGA 300 regulator? I know that a CGA 320 regulator is standard for CO2. The issue is that I currently do not have any free CGA 320 regulators. I also...
25 February 2021 3,292 3 View
Hi everyone, Please, how can I obtain time series data by country on night-time light (brightness) ? I've tried, but so far all I can find are maps. I am looking for numerical data, especially in...
24 February 2021 8,625 4 View
As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic...
23 February 2021 3,175 3 View
I want to illuminate a scene (small space) using LED to capture photographs or videos of some tiny objects inside the space. But am not sure if I should use a Laser LED, or simple LED or power...
22 February 2021 4,240 4 View
I want to measure the thickness of aluminum oxide and titanium oxide layers deposited on textured glass substates. The layer thicknesses are typically below 100nm.
21 February 2021 5,465 4 View
Basically, I would like to know how to treat or coat on the uncoated bare TiO2 (Ti-OH rich) surface with polymer which has anchoring groups in the polymer structure like trimethoxygroups. What is...
21 February 2021 4,657 6 View