High-hydroscopicity polymer resin microcapsule and its production process
A high water absorption, production process technology, applied in microcapsule preparation, microsphere preparation, wellbore/well components, etc., to achieve the effect of convenient use, small dosage and good sealing effect
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[0008] 1. Pass the core material through a standard sieve from 28 mesh to 38 mesh, and use particles within this size range as the core material.
[0009] 2. Weigh a certain amount of hardened lard with a melting point of 56°C to dissolve it, take 400ml in a beaker, and place it in a constant temperature water bath at 90°C.
[0010] 3. Take 900g of the sieved core material and place it in a fluidized bed with a fluidized air volume of 200m 3 Fluidized under the condition of / h.
[0011] 4. The amount of compressed air is 0.64m 3 / h, the feed rate is 124ml / h, and the material is sprayed onto the surface of the core material through a two-fluid nozzle.
[0012] 5. Keep the bed temperature at 34°C and continue to operate for 2.5 hours. Take out the solidified microcapsule particles.
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