Heat exchange polyethylene composite material, preparation thereof and heat exchange plastic pipe prepared from heat exchange polyethylene composite material

• Main Authors: LI PENG, XU PENGLIANG, DING LIPING, ZHOU WEIQING, WU HUACHENG, WANG MEISHUN, ZHANG ZIJIAN, ZHOU ZILONG
• Format: Patent
• Language: Chinese; English
• Published: 13.09.2022
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a heat exchange polyethylene composite material, preparation thereof and a heat exchange plastic pipe prepared from the heat exchange polyethylene composite material. After the polyvinylpyrrolidone is added into the mixed filler of the graphene and the carbon nanotubes, the graphene and the carbon nanotubes are treated by a high-pressure homogenization method, so that uniform co-dispersion of the graphene and the carbon nanotubes can be realized, the high length-diameter ratio of the graphene and the carbon nanotubes can be maintained, and defects can be reduced; the graphene and carbon nanotube composite filler establishes a long-range heat conduction path in the composite material, and the heat conduction property in the composite material can be obviously improved. The plastic pipe prepared by using the material disclosed by the invention not only has a relatively high heat conductivity coefficient, but also can improve the mechanical property of a matrix, and has a wide application