Mosquito-repellent flame-retardant polyethylene sheathing material for stain-resistant refrigerator power line and manufacturing method of sheathing material

Abstract

The invention discloses a mosquito-repellent flame-retardant polyethylene sheathing material for a stain-resistant refrigerator power line. The surface of nano magnesium hydroxide is modified with silane so that nano magnesium hydroxide can serve as a flame-retardant agent, hydrophobicity of magnesium hydroxide is improved to a certain extent, compatibility of magnesium hydroxide in polymer is improved, and the effects of improving material mechanics and flame retardancy are achieved. Red phosphorus is encapsulated and modified to improve the problem that red phosphorus absorbs moisture easily and is poor in safety, the encapsulated and modified red phosphorus is heated to form phosphate and metaphosphoric acid, accordingly a strong dehydrating agent, namely polymetaphosphate, is formed, decomposition of magnesium hydroxide is accelerated, and the synergetic flame-retardant function is achieved. The surface of inorganic filler fly ash is chemically modified, compatibility of inorganic filler fly ash in polymer is improved, mechanical strength and abrasion resistance of a product are improved, inorganic filler fly ash is matched with other effective auxiliaries like dimethyl phthalate, and the prepared polyethylene sheathing material can dispel mosquitoes, has high impact resistance and bending elastic modulus, and achieves the reinforcing and toughening effects.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant polyethylene sheath material for repelling mosquitoes and a stain-resistant 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 elec...

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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