Based on the notion of the time-dependent global attractor, the long-time dynamic behavior of the solution for the Cahn-Hilliard equation with the time-dependent inertial coefficients was considered. When the nonlinear function satisfies the critical growth condition, the existence of the bounded absorbing set and the asymptotic compactness of the process were demonstrated by using the asymptotic priori estimates and the method of operator decomposition, and then the existence and regularity of the time-dependent global attractor of the Cahn-Hilliard equation were proved. The research findings extend the Cahn-Hilliard equation model and advance the theoretical understanding of Cahn-Hilliard equation attractors.
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