On Thermal Analysis of Cellulose Acetate
It is called Cellulose Acetate, which has attracted much attention in the field of materials. Its characteristics are specific and it is widely used. To study its thermal properties, the method of DSC is very good.
For DSC, differential scanning calorimetry is also. Taking cellulose acetate as an experiment, this method can observe the relationship between the change of its heat flow and temperature. When it heats up, the movement of molecules inside cellulose acetate intensifies. The transition of contingent phases, such as crystalline state to amorphous state, shows the characteristic peak in the diagram of DSC.
The position of the peak indicates the temperature of the transition; the height and area of the peak indicate the change of energy. If the degree of acetylation of cellulose acetate is different, the graph of its DSC is also different. With a high degree of acetylation, the force between molecules changes, and the temperature of the thermogenic transition is different.
In addition, different heating rates also affect the results of DSC. If the speed is fast, the peak will be sharper, and the temperature of the transition will rise slightly. This is because the molecular response speed is not as fast as the temperature rise.
From the DSC analysis of cellulose acetate, it can be known that its thermal stability and phase transition properties. In the design, preparation, and application of materials, it is of great guidance. It is clear that its thermal properties can make cellulose acetate used in various fields, such as textiles, packaging, film materials, etc., to develop its growth.