Acrylic primer suitable for polyvinylidene fluoride (PVDF) finish paint and preparation method thereof
A technology of acrylic and acrylic resin, applied in the direction of coating, etc., can solve the construction performance, water resistance, weather resistance, acid and alkali resistance, low hardness, high chemical resistance and weather resistance, chemical resistance, Poor weather resistance and other problems, to achieve the effect of improving T-bend performance, improving interlayer adhesion, and prolonging the service life
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[0023] Example one
[0024] Acrylic primer suitable for PVDF topcoat. The components and their weight percentages in the formulation are: thermosetting acrylic resin 30%, organic solvent 30%, rutile titanium dioxide powder 20%, filler 6%, PVDF resin 5%, auxiliary 5% of hexamethoxymethyl melamine formaldehyde resin, 4% of hexamethoxymethyl melamine formaldehyde resin, of which, the organic solvent is isophorone, the fillers include barium sulfate, zinc phosphate, silicon dioxide, and the additives include dispersants, acrylic defoamers, flow Ping agent, closed p-toluenesulfonic acid.
[0025] The preparation method of the acrylic primer includes the following steps:
[0026] (1) Select each component according to the formula, put the thermosetting acrylic resin, organic solvent, and additives into the mixer for a single stirring, and the dispersion is uniform. The speed of the mixer is 400 revolutions per minute and the stirring time is 2 minutes during one stirring;
[0027] (2) Afte...
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[0030] Example two
[0031] Acrylic primer suitable for PVDF topcoat. The components and their weight percentages in the formulation are: thermosetting acrylic resin 25%, organic solvent 35%, rutile titanium dioxide powder 15%, filler 10%, PVDF resin 5%, auxiliary Agent 4%, hexamethoxymethyl melamine formaldehyde resin 6%, of which, the organic solvent is cyclohexanone, the fillers include barium sulfate, zinc phosphate, silicon dioxide, and the additives include dispersants, acrylic defoamers, and leveling Agent, closed p-toluenesulfonic acid.
[0032] The preparation method of the acrylic primer includes the following steps:
[0033] (1) Select the components according to the formula, put the thermosetting acrylic resin, organic solvent, and additives into the mixer for a single stirring, and the dispersion is uniform. The speed of the mixer is 600 revolutions per minute and the stirring time is 5 minutes;
[0034] (2) After step (1) is completed, add rutile titanium dioxide powder...
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[0037] Example three
[0038] Acrylic primer suitable for PVDF topcoat. The components and their weight percentages in the formulation are: thermosetting acrylic resin 20%, organic solvent 34%, rutile titanium dioxide powder 16%, filler 10%, PVDF resin 10%, auxiliary 2%, hexamethoxymethyl melamine formaldehyde resin 8%, of which, the organic solvent is trimethylbenzene, the fillers include barium sulfate, zinc phosphate, and silicon dioxide, and the additives include dispersants, acrylic defoamers, and leveling agents , Closed p-toluenesulfonic acid.
[0039] The preparation method of the acrylic primer includes the following steps:
[0040] (1) Select each component according to the formula, put the thermosetting acrylic resin, organic solvent, and auxiliary agent into the mixer for a single stir, and the dispersion is uniform. The speed of the stirrer is 500 revolutions per minute and the stirring time is 3 minutes;
[0041] (2) After step (1) is completed, add rutile titanium diox...
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