The invention discloses an environment-friendly high-temperature-resistant PE
bottle body and a preparation method thereof, and belongs to the technical field of packaging materials. The
bottle body is of a three-layer co-
extrusion structure, in the inner layer, high-density
polyethylene serves as a base material, a
graphene-nano-
silicon dioxide core-shell filler and a
dicumyl peroxide /
triallyl isocyanurate cross-linking agent are added, and a high-temperature-resistant cross-linking layer is formed; the middle layer is a low-density
polyethylene base material and is reinforced and toughened by
silane-containing modified glass fibers; and the outer layer takes linear low-density
polyethylene as a base material, is loaded with nano TiO and a
starch-based biodegradable auxiliary agent, and is treated by trimethoxysilane to form a super-hydrophobic anti-aging layer. According to the preparation method, through
microwave-assisted filler activation, ultrasonic online dispersion, gradient
electron beam crosslinking and super-hydrophobic surface curing, the efficient dispersion of the filler and the synergistic effect of the functional layer are realized. And the prepared
bottle body has excellent high
temperature resistance,
mechanical strength and environmental friendliness, and is suitable for high-temperature environment packaging application.