Mica/rare-earth salt stabilizer for PVC and preparation method thereof
A rare earth stabilizer and rare earth salt technology, applied in the chemical field, can solve the problems of easy discoloration and so on
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Embodiment 1
[0039] In a stainless steel reaction kettle with a stirrer, add 50kg of oleic acid and 250kg of water, stir after adding and melting, add catalyst (Zn 2+ Salt) 0.2kg, stir and add calcium oxide 2kg at 70-85°C, keep stirring for 2-4 hours, add lanthanum nitrate 120kg, stir at room temperature for 2 hours to form a uniform material, go through centrifugal dehydration, dry, and pulverize to obtain organic rare earth salts.
[0040] Disperse 120kg of the prepared above-mentioned materials into 200kg of mica, add 800kg of solvent as a dispersion medium (water or ethanol) and stir for 2 hours, add 24kg of surfactant pentaerythritol ester, stir for 20min, add 15kg of stearic acid, polyethylene wax 20kg. Knead and stir for 30 minutes, centrifugally dry, crush, sieve and pack.
Embodiment 2
[0042] In a stainless steel reactor with a stirrer, add lauric acid 50kg and water 200kg, stir after adding and melting, add catalyst (Zn 2+ Salt) 0.2kg, stir at 70-85°C, add 2kg of calcium oxide, keep stirring for 2-4 hours, add 100kg of cerium nitrate, stir at room temperature for 2 hours to form a uniform material, go through centrifugal dehydration, dry, and pulverize to obtain organic rare earth salt .
[0043] Disperse 100kg of the prepared above-mentioned materials into 200kg of mica, add 1200kg of solvent as a dispersion medium (water or ethanol) and stir for 2 hours, then add 15kg of surfactant triphenoxyphosphine, stir for 20min, and add 45kg of stearic acid. Knead and stir for 30 minutes, centrifugally dry, crush, sieve and pack.
Embodiment 3
[0045] In a stainless steel reaction kettle with a stirrer, add 50kg of oleic acid and 250kg of water, stir after adding and melting, add catalyst (Zn 2+ Salt) 0.2kg, stirred at 70-85°C and added 2kg of calcium oxide, kept stirring for 2-4 hours, added 120kg of lanthanum hydrochloride, stirred at room temperature for 2 hours to form a uniform material, went through centrifugal dehydration, and dried to obtain organic rare earth salt.
[0046] Disperse 120 kg of the prepared above-mentioned materials into 200 kg of mica, add 500 kg of solvent as a dispersion medium (water or ethanol) and stir for 2 hours, add 3 kg of surfactant pentaerythritol ester, stir for 20 min, add 45 kg of stearic acid, polyethylene wax 60kg. Knead and stir for 30 minutes, centrifugally dry, crush, sieve and pack.
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