On the flammability of cellulose acetate
cellulose acetate, its properties are related to whether it burns or not, and people often have the intention to explore it.

From the perspective of physical properties, cellulose acetate has a unique quality. Its structure is fine, and the attractive force between molecules is different, which has a great impact on flammability. From the analysis of chemical composition, carbon, hydrogen, and oxygen elements form its main frame, and then the combination method and proportion affect its flammability tendency.

In the usual environment, in case of a small ignition source, cellulose acetate or only the surface is slightly changed, and there is no open flame. Because of the initial heating, the outer layer melts first to form an isolation layer, which temporarily prevents the internal transfer of heat, and is difficult to cause rapid internal explosion. However, if the heat source is strong and long-lasting, the outer protection is broken, the internal material pyrolyzes, escapes flammable gas, mixes with oxygen, and reaches the ignition point, the combustion potential is difficult to control.

Furthermore, environmental factors are key. Good ventilation, flammable gas dissipates quickly, difficult to accumulate to the explosion limit, and the burn risk is reduced; while in a closed space, gas accumulates, and ignites in case of fire, and the fire spreads rapidly. Humidity is also affected. In the wet state, the moisture of cellulose acetate hinders heat transfer and reduces flammability; when dry, it is reversed, and it is more likely to catch fire.

In industrial applications, additives are often added due to processing requirements. Some additives are flame retardant and combine with cellulose acetate to change their combustion characteristics, or reduce the heat release rate, or prevent flame propagation In summary, the flammability of cellulose acetate is not absolute and is restricted by its own structure, environmental conditions and additives. To clarify its flammability, it is necessary to comprehensively consider all factors to avoid fire hazards and ensure production and life safety.