Preparation method of pesticide diuron slow controlled release nanometer composite material
A nanocomposite material, Diuron technology, applied in botany equipment and methods, chemicals for biological control, herbicides and algicides, etc., can solve the effects of drug efficacy, waste of petroleum resources, phytotoxicity, etc. Problems, to achieve the effect of reducing agricultural production costs, avoiding environmental pollution, and good environmental protection effects
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Embodiment 1
[0022] A preparation method of pesticide Diuron slow-controlled release nano-composite material, it comprises the following steps:
[0023] 1). Dissolve 1.5g of Diuron in 13.5g of water, then ultrasonically disperse (make the pesticide Diuron disperse to form a suspension) to obtain a suspension containing Diuron; the power of the ultrasonic dispersion is 100W, The frequency of the ultrasonic wave is 60 kHz, and the time is 20 minutes;
[0024] 2). Use the "negative pressure-freeze drying method" to load the solution containing diuron on hydroxyapatite nanoparticles:
[0025] First put 8.5g of hydroxyapatite nanoparticles with a particle size of 150nm in a closed container, pump air to make it in a vacuum state and then seal it, then inject the suspension containing diuron into the container, and the diuron molecule Adsorbed on the surface of the nanoparticle and infiltrated into the hole by negative pressure, after 1min (that is, after reaching equilibrium), freeze-dry (use ...
Embodiment 2
[0033] A preparation method of pesticide Diuron slow-controlled release nano-composite material, it comprises the following steps:
[0034] 1). Dissolve 3.5g of Diuron in 5.25g of water, then ultrasonically disperse (make the pesticide Diuron disperse to form a suspension) to obtain a suspension containing Diuron; the power of the ultrasonic dispersion is 100W, The frequency of the ultrasonic wave is 60 kHz, and the time is 20 minutes;
[0035] 2). Use the "negative pressure-freeze drying method" to load the solution containing diuron on hydroxyapatite nanoparticles:
[0036] First put 7.0g of hydroxyapatite nanoparticles with a particle size of 800nm in an airtight container, pump air to make it in a vacuum state and then seal it, then inject the suspension containing diuron into the container, and the diuron molecules are Adsorbed on the surface of the nanoparticles and infiltrated into the pores through negative pressure, after 7 minutes (that is, after reaching equilibr...
Embodiment 3
[0044] A preparation method of pesticide Diuron slow-controlled release nano-composite material, it comprises the following steps:
[0045] 1). Dissolve 5.5g of Diuron in 22g of water, and then ultrasonically disperse (to disperse the pesticide Diuron to form a suspension) to obtain a suspension containing Diuron; the power of the ultrasonic dispersion is 100W, and the ultrasonic dispersion The frequency is 60 kHz, and the time is 20 minutes;
[0046] 2). Use the "negative pressure-freeze drying method" to load the solution containing diuron on hydroxyapatite nanoparticles:
[0047] First put 4.5g of hydroxyapatite nanoparticles with a particle size of 500nm in a closed container, pump air to make it in a vacuum state and then seal it, then inject the suspension containing diuron into the container, and the diuron molecule Adsorbed on the surface of the nanoparticle and infiltrated into the hole by negative pressure, after 10 minutes (that is, after reaching equilibrium), fre...
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