High-density polyethylene conductive material and preparation method thereof

Abstract

The invention discloses a high-density polyethylene conductive material and a preparation method thereof. The conductive material is prepared from the following raw materials: high-density polyethylene, carbon black, glass fibers, an ethylene-vinyl acetate copolymer, phenolic resin, potassium titanate whiskers, filler, a stabilizer, a coupling agent, a plasticizer and an antioxidant. The preparation method comprises the following steps: firstly, mixing the high-density polyethylene, the glass fiber, the ethylene-vinyl acetate copolymer, the phenolic resin, the potassium titanate whisker and the coupling agent; and feeding the mixture into a double-screw extruder, carrying out melt extrusion granulation, mixing the mixed particles with carbon black, a filler, a stabilizer, a plasticizer andan antioxidant, then feeding the mixture into a single-screw extruder, and carrying out melt extrusion granulation to obtain the product. The high-density polyethylene is used as a main material, andmeanwhile, the acrylic resin, the glass fibers and the potassium titanate whiskers are added, so that the conductive material is stable in resistance and uniform in temperature.

Description

technical field [0001] The invention belongs to the technical field of plastic materials, and in particular relates to a high-density polyethylene conductive material and a preparation method thereof. Background technique [0002] High-density polyethylene (HDPE) is a white powder or granular product, non-toxic, tasteless, crystallinity is 80% to 90%, softening point is 125 to 135°C, and the service temperature can reach 100°C; hardness, tensile strength And creep is better than low-density polyethylene; wear resistance, electrical insulation, toughness and cold resistance are better; chemical stability is good, at room temperature, insoluble in any organic solvents, acid, alkali and various salts Corrosion; the film has low permeability to water vapor and air, low water absorption; poor aging resistance, environmental stress cracking resistance is not as good as low-density polyethylene, especially thermal oxidation will reduce its performance. [0003] Conductive material...

AI Technical Summary

Problems solved by technology

However, since the addition of conductive materials to resin materials will affect the mechanical properties of plastics, improving the mechanical properties of conductive materials has become a current research hotspot.