DA-PU在高温下发生熔融和RDA反应，，复合填料与基质间的粘合力增强

DA-PU undergoes melting and RDA reaction at high temperature, and the adhesion between the composite filler and the matrix is ​​enhanced through the presence of oxygen-containing functional groups on the surface of GO; the composite filler may appear alignment and slip at the fracture site, requiring additional energy; During the melting process of DA-PU at high temperature, the distribution of composite fillers in the matrix is ​​improved, and the possibility of stress concentration decreases.

Da-Pu melts and RDA reacts at high temperature, and the adhesion between the composite filler and the matrix is enhanced. There are oxygen-containing functional groups on the surface of go; The orientation arrangement and slip of composite fillers may occur at the fracture site, which requires additional energy; During the melting process of Da-Pu at high temperature, the distribution of composite filler in the matrix is improved and the possibility of stress concentration is reduced.

DA-PU melts and reacts with RDA at high temperature, and the adhesion between composite filler and matrix is enhanced through the existence of oxygen-containing functional groups on the surface of GO. The composite filler may be aligned and slipped at the fracture site, which requires extra energy. When DA-PU melts at high temperature, the distribution of composite filler in matrix is improved, and the possibility of stress concentration decreases.