A kind of hydrophobic and lipophilic modified synthetic mica and preparation method thereof
A technology for synthesizing mica, hydrophobic and lipophilic, applied in the field of mica, can solve the problems of difficult to control the uniformity of product quality, difficult to mix evenly of surface treatment agents, and increased energy consumption and cost, so as to achieve uniform hydrophobic and lipophilic effect, good uniformity, The effect of high pass rate
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Embodiment 1
[0032] The first step, in parts by mass, add 5 parts of synthetic mica and 45 parts of water in the reactor, stirring at room temperature (rotating speed is 200rpm) for 10 minutes;
[0033] The second step, in parts by mass, adds 5.6 parts of ammonium bicarbonate to the reactor described in the first step, and adopts ultrasonic dispersion treatment for 10 minutes at room temperature (ultrasonic frequency and power are respectively 40kHz and 350W), so that the synthetic mica Uniform contact between particles and ammonium bicarbonate molecules for ion exchange to occur;
[0034] In the third step, in parts by mass, add 0.3 parts of hexadecyltrimethoxysilane and 2.7 parts of methanol solution in the reactor, and use ultrasonic dispersion for 20 minutes at room temperature (ultrasonic frequency and power are 50kHz and 450W respectively) , making the ion-exchanged synthetic mica particles uniformly contacted with hexadecyltrimethoxysilane molecules, and then performing solid-liquid...
Embodiment 2
[0037] In the first step, in parts by mass, 10 parts of synthetic mica and 90 parts of water are added to the reactor, and stirred at room temperature for 5 minutes (rotating speed is 250rpm);
[0038] In the second step, add 11.2 parts of ammonium bicarbonate to the reactor described in the first step, and use ultrasonic dispersion treatment for 10 minutes at room temperature (ultrasonic frequency and power are respectively 40kHz and 350W), so that the synthetic mica particles and ammonium bicarbonate molecules Uniform contact between them for ion exchange to occur;
[0039] In the third step, add 0.5 parts of dodecyltrimethoxysilane and 4.5 parts of methanol solution in the reactor, and use ultrasonic dispersion treatment for 10 minutes at room temperature (ultrasonic frequency and power are 50kHz and 450W respectively), so that ion exchange occurs The synthetic mica particles are evenly contacted with dodecyltrimethoxysilane molecules, and then solid-liquid separation is ca...
Embodiment 3
[0042] In the first step, in parts by mass, 7 parts of synthetic mica and 60 parts of water are added to the reactor, and stirred at room temperature for 8 minutes (rotating speed is 150rpm);
[0043] In the second step, add 6.8 parts of ammonia water to the reactor described in the first step, and adopt ultrasonic dispersion treatment for 15 minutes at room temperature (ultrasonic frequency and power are respectively 40kHz and 300W), so that the uniform contact between the synthetic mica particles and the ammonia water molecules for ion exchange to occur;
[0044] In the third step, add 0.5 parts of octyltriethoxysilane and 4.5 parts of ethanol solution in the reactor, and use ultrasonic dispersion treatment for 25 minutes at room temperature (ultrasonic frequency and power are respectively 50kHz and 450W), so that the ion-exchanged Synthetic mica particles are uniformly contacted with octyltriethoxysilane molecules, and then solid-liquid separation is performed to obtain a w...
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