*’Nano’ means….
Nanometer: one billionth of a meter
Nano-: prefix comes from the Greek word for ‘dwarf’
Chemical, physical, and biological properties that differ from those of their larger, or bulk counterparts
Nanotechnology: The National Nanotechnology Initiative(NNI)-> the science of materials and phenomena in the range of 1 to 100nm in diameter
*Features of ‘nanoparticles
In describing the answer to the question below, try to share your opinions on the basis of evidences such as articles and books. Also provide information of the evidence (author, title, journal name, etc.).
1. Explain what happens in terms of mechanical/chemical properties when making products using metal-based 3D additive manufacturing technology. (10 points)mechanical properties
전통적
chemical substance, which is the dibromoethane,
we can simply find out the relationship between those three gas laws.
The relationship are shown through 8 graphs plotted based on fixed
properties of dibromoethane such as critical temperature, pressure,
saturated liquid and vapor volume as well as using the general formulas
of the three gas laws. There are 7 graphs which plotted bas
Significantly higher surface area and much narrower pore size distribution in the mesopore region
A large amount of amine-type CO2 capturing agent into its mesopores in a well dispersed manner
Synthesis of MA
PEI impregnation on MA
Amine grafting on MCM-41
Characterization of the materials prepared
CO2 adsorption-desorption measurement
Al(i-PrO)3 (41.68g)+ Alcohol solvent
Chemical Deposition
유체(액체, 기체) precursor(씌우고자 하는 층이 될 잠재 물질)는 고체 표면에서 화학적 변화를 일으켜, 고체 층을 만든다. 유체가 고체 표면을 둘러싸기 때문에 방향에 관계없이 증착은 모든 표면에서 일어난다. 따라서 chemical deposition 기술에 의한 박막은 표면 전체에 걸쳐 두께가 동일하다