Phase transformation and interface change of tempered glass ink

Tempered glass ink is a kind of high-temperature sintered ink.

In the construction and sintering process inks, the interface changes involved and the more complex phase transition coating line coatingol.

In the sintering process of the tempered glass ink, the ink changes from a liquid state to a solid state, then into a semi-solid state to a liquid state, and finally cools down and becomes a solid state

In order to observe the surface morphology changes of the coating at different temperatures, the experiment used an optical microscope combined with a 3D scanning microscope to observe the coating morphology after heat treatment at different temperatures for 1 hour

Combined with thermogravimetric analysis, it can be seen from Figures 2a and b that the organic resin begins to decompose in a large amount at 300-400°C.

It can be seen from Figures 2d and e that the low-melting glass powder further melts, flows and spreads into a continuous phase at 600°C and 700°C, which has replaced the organic resin film layer and adhered to the high-temperature resistant pigments and fillers in the coating.

It can be seen that the melting degree of low-melting glass powder with different incipient melting temperature is different under different temperature and time, resulting in a great difference between the microscopic and macroscopic properties of the entire coating

Taking water-based tempered glass ink as an example, we can design the process like this:

All in all, the production and construction of coatings and inks involve interface changes and phase transitions.