Matte epoxy/polyester powder coating and preparation method thereof
A technology of polyester powder and epoxy, which is applied in the direction of powder coating, polyester coating, epoxy resin coating, etc. It can solve the problems of poor baking resistance, insufficient gloss stability, and affecting the quality of matte coatings. Achieve good aging resistance, improve gloss stability, high baking resistance and surface fineness
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[0041] A kind of matt type epoxy / polyester powder coating, it is made up of the raw material of following weight part:
[0042] Epoxy resin (E-12) 300 parts
[0043] Polyester resin (P5127) 300 parts
[0044] Leveling agent (GLP503) 10 parts
[0045] Brightener (BLC701) 10 parts
[0046] Matting agent (XG603-2A) 10 parts
[0047] Benzoin 10 parts
[0048] Modified polyethylene wax powder 10 parts
[0049] 250 parts of barium sulfate
[0050] 50 parts of quasi-spherical silica powder
[0051] 5 parts of 2-phenylimidazoline
[0052] 5 parts of 2-methylimidazole
[0053] 10 parts of carbon black.
[0054] Wherein, the particle size of the quasi-spherical silica powder is 600 mesh.
[0055] The modified polyethylene wax micropowder is prepared by the following method: (1) Add polytetrafluoroethylene micropowder, fumed silica and tree ash into a high-speed mixer at a mass ratio of 4:1.5:0.8 and mix for 25 minutes, then add 1.5% sodium lauryl sulfate, 2% sodium stearate a...
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