Flame retardant polyethylene sheath material used for refrigerator power line and capable of preventing termites and manufacturing method thereof

Abstract

The invention discloses a flame retardant polyethylene sheath material used for refrigerator power line and capable of preventing termites. Nano-magnesium hydroxide with the surface modified with silane is used as flame retardant, hydrophobicity of magnesium hydrate can be improved to a certain extent, compatibility of magnesium hydrate in a polymer is improved, material mechanics and flame retardance are improved, the problems that red phosphorus is prone to moisture absorption and poor in safety are solved by modifying red phosphorus in a capsulation mode, capisulazed modified red phosphorus is heated to form phosphoric acid and metaphosphoric acid, then a powerful dehydrating agent polymetaphosphate is formed, decomposition of magnesium hydrate is accelerated, and the synergistic flame retardant effect is achieved. The surface of inorganic filler zeolite powder is modified chemically, compatibility of zeolite powder in the polymer is improved, and mechanical strength and abrasion resistance of the product are improved; by means of compatibility of other effective auxiliaries like oleum menthae, the manufactured polyethylene sheath material has a pungent smell of mint and can prevent termite gnawing when used a power line sheath material, and the service life is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a termite-proof flame-retardant polyethylene sheath material for a 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 insulation, mechanic...

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