Epoxy resin coating reinforced by polyethylene glycol terephthalate crystal and preparation method thereof
A technology of polyethylene terephthalate and epoxy resin coatings, applied in the direction of epoxy resin coatings, anti-corrosion coatings, coatings, etc. Problems such as high film cohesion, to achieve the effect of reducing cracks, excellent barrier properties, and good performance parameters
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Example Embodiment
[0012] Example 1:
[0013] The epoxy resin coating which does not add polyethylene terephthalate crystallization is obtained as the following feed ratio (mass percentage content):
[0014]
[0015] The epoxy resin was placed in an oven, 20 min at 60 ° C, and after the viscosity drops, the appropriate amount of epoxy resin is dissolved with hexafluoropropyl alcohol, and it is manually stirred at normal temperature until the system is uniform, colorless and transparent. state. An epoxy resin curing agent, a leveling agent, a defoamer is added to the blended system, and after the glass rod is fully stirred, the seal is allowed to stand for 10 min, and the blend is applied to the tip iron sheet and placed at 100 ° C oven baking. Take out after 2 hours. The impedance of the polyethylene terephthalate epoxide epoxy resin coating is about 4 × 10 3 Ω.
Example Embodiment
[0016] Example 2:
[0017] The polyethylene terephthalate crystal enhanced epoxy resin coating is prepared as follows (mass percentage content):
[0018]
[0019]
[0020] The melt quenched polyethylene terephthalate is added to the hexafluoropropyl alkanol solvent, and the sealing is allowed to completely dissolve, then the epoxy resin is placed in an oven, 60 ° C heat-insulation treatment for 20 min, viscosity drop Thereafter, the polyethylene terephthalate / hexafluoropropanol system is added to the appropriate amount of epoxy resin, respectively. The polyethylene terephthalate / hexafluoro isopropanol / epoxy resin is manually stirred for 5 min until the system is uniform, colorless and transparent. The epoxy resin curing agent, a leveling agent, and an antifoaming agent are added thereto among the blended system. After the glass rod is sufficiently stirred, the seal is allowed to stand for 10 min, and the blend is applied to the tip iron piece and placed at 100 ° C oven b...
Example Embodiment
[0021] Example 3:
[0022] The polyethylene terephthalate crystal enhanced epoxy resin coating is prepared as follows (mass percentage content):
[0023]
[0024] The melt quenched polyethylene terephthalate is added to the hexafluoropropyl alkanol solvent, and the sealing is allowed to completely dissolve, then the epoxy resin is placed in an oven, 60 ° C heat-insulation treatment for 20 min, viscosity drop Thereafter, the polyethylene terephthalate / hexafluoropropanol system is added to the appropriate amount of epoxy resin, respectively. The polyethylene terephthalate / hexafluoro isopropanol / epoxy resin is manually stirred for 5 min until the system is uniform, colorless and transparent. The epoxy resin curing agent, a leveling agent, and an antifoaming agent are added thereto among the blended system. After the glass rod is sufficiently stirred, the seal is allowed to stand for 10 min, and the blend is applied to the tip iron piece and placed at 100 ° C oven baking. Afte...
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