The metallographic studies have indicated that the bonding phase of the WC-13%Fe/Co/Ni alloy with addition of small A1 is mainly of γ phase and lath martensite with partial existense of α+ (Fe,Me)_3C lamellar structure.
tripos standard, hydrogen bonding, parabolic indicator in the case of CoMFA and steric, electrostatic, donor, acceptor, hydrophobic, donor and acceptor, steric and electrostatic in the case of CoMSIA.
In addition, electrostatic, hydrogen-bonding, and dipole-dipole interactions are responsible for the above separations, which improve the selectivity of DNB for solutes.
For example, in water, PCL and PAA formed core-shell nanospheres due to interpolymer hydrogen bonding.
Both the micellization and the structure transition were found to be reversible and associated with H-bonding complexation between the main chain and grafts.
When the content of nano-SiO2 was below 1.5%, the amount of free formaldehyde decreased, and the viscosity and bonding strength of resin increased with an increase in the added nano-SiO2, which did not prolong the curing time.