PET-based graphene composite material, preparation method thereof, and aerostat

Abstract

The invention provides a PET-based graphene composite material, a preparation method thereof, and an aerostat. The preparation method comprises the following steps: 1, carrying out an esterification reaction or an ester interchange reaction on ethylene glycol modified graphene oxide and a PET monomer to obtain a head product, wherein the PET monomer is terephthalic acid and/or dimetyl terephthalate; and 2, carrying out a condensation polymerization reaction on the head product to obtain the PET-based graphene composite material. The in situ polymerization reaction of the ethylene glycol modified graphene oxide and the PET monomer is carried out to make graphene oxide be dispersed in the reaction process of ethylene glycol and the PET monomer, so the dispersibility of graphene in the PET-based graphene composite material is improved. The preparation method directly adopting the PET monomer as a raw material has the advantages of simple process, short preparation period, low cost, and suitableness for large-scale technologic production; and the PET-based graphene composite material prepared in the invention has excellent gas barrier property and mechanical strength.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for improved dispersion or solubility of carbon nanoparticles (CNs) into polyethyleneglycols (PEG). By mixing certain chemical substances together during synthesis, CN particles can be made more easily dissolved when mixed with other molecules like water. These special compounds improve the performance of these films by making them stronger against impact force compared to traditional methods that use pure hydroxypropyltrimonium bromate (HTPB), which makes their film weaker at high pressure. Additionally, this new approach simplifies the manufacturing processes used to make such films without requiring expensive precursors.

Problems solved by technology

This patented technical solution describes how poly ethylenetterephthafonate (PET), or another type of plastic called polytetrafluorobutylethermalimberplifier(PTFE)) can be made into useful products such as pipings, tubular structures, insulation foam sheets, electronics applications, etc., while also improving their overall characteristics like heat conductivity, moisture protection, and gas blocking capabilities. Additionally, there have been attempts to create PE/graphite nanofibril Composites containing both graphene flakes and fullerenic layers on top of each other. These new methods aim to overcome difficulties associated with producing pure graphene without impurities from previous processes.

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