High-flame-retardant photoelectric composite cable sheath material with good processability and preparation method thereof

Abstract

The invention relates to a high-flame-retardant photoelectric composite cable sheath material with good processability and a preparation method thereof, and belongs to the technical field of cable sheath materials. The high-flame-retardant photoelectric composite cable sheath material comprises the following raw materials: a resin base material, a compatilizer, a composite flame retardant, a synergistic flame retardant, an antioxidant, modified glass fibers and a lubricant. The resin base material, the compatilizer, the composite flame retardant, the synergistic flame retardant, the antioxidant, the modified glass fiber and the lubricant are uniformly mixed and then extruded and granulated to prepare the flame-retardant resin. According to the invention, the composite flame retardant and the modified glass fiber are introduced and are scientifically proportioned with other raw materials, so that the high-flame-retardant photoelectric composite cable sheath material with good processability is obtained; the halogen-free flame-retardant low-smoke halogen-free flame-retardant halogen-free halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant halogen-free flame-retardant

Description

technical field [0001] The invention belongs to the technical field of cable sheath materials, and in particular relates to a high flame-retardant photoelectric composite cable sheath material with good processability and a preparation method thereof. Background technique [0002] The traditional PVC photoelectric composite cable sheathing material has the following disadvantages: First, it is very easy to catch fire due to excessive heat generation of the line during use, which causes a fire, and produces a large amount of toxic gas and smoke when burning. Seriously endanger people's lives and property safety; second, the processing fluidity and thermal stability of PVC resin itself are poor, so it is necessary to add plasticizers and stabilizers to ensure processing performance, and the most commonly used phthalates in plasticizers Heavy metal elements such as lead and cadmium in dicarboxylates and stabilizers are not environmentally friendly, so the use of halogen-free fl...

AI Technical Summary

Problems solved by technology

[0002] The traditional PVC photoelectric composite cable sheathing material has the following disadvantages: First, it is very easy to catch fire due to excessive heat generation of the line during use, which causes a fire, and produces a large amount of toxic gas and smoke when burning. Seriously endanger people's lives and property safety; second, the processing fluidity and thermal stability of PVC resin itself are poor, so it is necessary to add plasticizers and stabilizers to ensure processing performance, and the most commonly used phthalates in plasticizers Heavy metal elements such as lead and cadmium in dicarboxylates and stabilizers are not environmentally friendly, so the use of halogen-free flame-retardant cable materials to replace traditional halogen-containing cable materials has become an inevitable trend in the invention of cable sheathing tube materials

[0003] The flame retardancy of existing halogen-free flame-retardant cable materials is mainly achieved by adding magnesium hydroxide and aluminum hydroxide to polyolefin materials, which has the disadvantage of low flame-retardant efficiency; and its flame-retardant effect usually requires a large amount of The addition of inorganic fillers, such a large amount of addition of inorganic fillers often results in a significant reduction in the processing performance and mechanical properties of the composite material, resulting in the incompatibility between the high flame retardancy and mechanical properties or processing properties of halogen-free cable materials.

Images