Graphene-waterborne epoxy high-dispersion system and synthetic method thereof
A water-based epoxy and synthesis method technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve problems such as pending research, heavy steel connection workload, structural safety hazards, etc., to reduce usage and increase market share. Competitiveness and the effect of reducing production costs
Active Publication Date: 2017-11-17
江苏丰彩建材(集团)有限公司 +1
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The invention relates to a synthetic method of a graphene-waterborne epoxy high-dispersion system. The method comprises steps as follows: step 1, glycidyl ether type epoxy resin and double-end amino micromolecular amine are subjected to an addition chain extension reaction, and an amino-terminated hydrophilic polyether chain segment is obtained; step 2, the amino-terminated hydrophilic polyether chain segment and a macromolecular epoxy group are subjected to an addition chain extension reaction, and an amino-terminated long-chain non-ionic self-emulsifying epoxy curing agent is obtained; step 3, low-oxidation graphene is prepared with an ultrasonic assisted Hummers method; step 4, the non-ionic self-emulsifying epoxy curing agent and low-oxidation graphene are subjected to a covalent grafting modification reaction, and the graphene-waterborne epoxy high-dispersion system is obtained. The synthetic method has the advantages as follows: the long-chain non-inoic self-emulsifying epoxy curing agent is grafted on the surface of graphene through a nucleophilic opening ring reaction, re-agglomeration of a graphene sheet layer is inhibited to a certain extent, the electric conductivity of graphene is retained, and the comprehensive mechanical performance and modulus of the graphene-waterborne epoxy high-dispersion system are improved effectively.
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Property | Measurement | Unit |
Particle size | <= 25.0 | mm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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