Curing test of glue and other materials

Refers to the process of a substance changing from a low molecular weight to a high molecular weight. The strength of the sample after curing will be higher. “The curing principle is a principle used in the study of the motion of a variable mass system. It means that at any instant, the motion equation of the rigid shell of a variable mass system can be written in the form of the motion equation of a constant mass rigid body, as long as it is assumed at this instant.”