Anti-cracking impact-resistant PVC-O cable protection pipe and preparation method thereof

Abstract

The application discloses an anti-cracking and impact-resistant PVC-O cable protection pipe and a preparation method thereof, and belongs to the technical field of cable protection pipes, and aims to solve the technical problem that the impact resistance and the flame resistance of the PVC-O cable protection pipe in the prior art need to be further improved. The PVC-O cable protection pipe is formed by synergistically constructing phosphorus-silicon hybrid flame-retardant microfiller, epoxy imidazole core-shell copolymer microparticles and cinnamic acid modified photo-crosslinking PVC in a system, so that the PVC-O cable protection pipe forms a stable multi-scale oriented structure, a hierarchical interface and a hybrid flame-retardant network. The above structure units form a synergistic effect in terms of thermal decomposition regulation, interface stress transmission and orientation maintenance, so that the synchronous improvement of the flame resistance, the thermal stability, the impact toughness, the stiffness retention and the wear resistance is realized.

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