Flame-retardant polyethylene sheathing compound for acid-resistant anticorrosive refrigerator power lines and manufacturing method thereof

Abstract

The invention discloses a flame-retardant polyethylene sheathing compound for acid-resistant anticorrosive refrigerator power lines. After nano-magnesium hydroxide surface is silicane-modified, the silicane-modified nano-magnesium hydroxide is used as a fire retardant. Then, hydrophobicity of magnesium hydroxide is improved to some extent, compatibility of magnesium hydroxide in a polymer is enhanced, and mechanics of materials and flame retardance are raised. By encapsulation modification of red phosphorus, easy moisture absorption and poor safety of red phosphorus are improved. Encapsulation modified red phosphorus is heated to form phosphoric acid and metaphosphoric acid, and a dehydrating agent polymetaphosphate is furthermore formed. Then, decomposition of magnesium hydroxide is accelerated, and a synergistic flame retardant effect is achieved. By surface chemical modification of inorganic filler bagasse, compatibility of the inorganic filler bagasse in a polymer is raised, and mechanical strength and wear resistance of the product are improved. With compatibility of other effective auxiliary agents, the prepared polyethylene sheathing compound has characteristics of acid resistance, corrosion resistance, aging resistance and anti-tarnishing property.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant polyethylene sheath material for an acid-resistant and anti-corrosion refrigerator power cord and a manufacturing method thereof. Background technique [0002] As we all know, the power cord is a wire that transmits current, and the sheath is an indispensable structural part of the power cord, which plays the role of protecting the insulation of the wire, ensuring the safety of the power cord, insulating the conductor from water, air and other media, and avoiding leakage Phenomenon. The sheath of the refrigerator power cord can be divided into an outer sheath and an inner sheath. The outer sheath is also called the protective sheath. It is the outermost sheath of the refrigerator power cord. This outer sheath protects the power cord. role. High-density polyethylene (HDPE) is the most widely used general-purpose plastic. Because of its good electrical...

AI Technical Summary

Problems solved by technology

From the perspective of environmental protection, it is commonly used to add inorganic fillers to high-density polyethylene, such as calcium carbonate, talcum powder, glass beads, mica, etc., although it can improve the strength, rigidity, and dimensional stability of the material. However, The relative density of these inorganic fillers is relatively high, adding to the polymer makes the relative density of the prepared composite material high, resulting in an increase in product quality, and the compatibility between inorganic fillers and organic polyethylene is not good, so it is necessary to modify the surface of the inorganic materials. Better compound with the matrix, the preparation process is more complicated, and the cost is higher