Infrared magnetic phase change material and preparation method thereof
A magnetic phase transition and infrared technology, applied in the preparation of microspheres, materials for heat exchange, magnetic properties of inorganic materials, etc., can solve the problem of difficult to meet the needs of full-time multi-band camouflage, achieve low emissivity, increase application range, reduce Effect of coating thickness
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Embodiment approach 1
[0028] Step 1, weigh 2 grams of modified nano-ferrite, use decane as paraffin, weigh 10 g of paraffin, 10 g of styrene, 1 g of methacrylic acid, 0.08 g of dodecyl mercaptan, 0.8 g of sodium lauryl sulfate, and Azodiisobutyronitrile 0.1g;
[0029] Step 2, uniformly mixing the modified nano-ferrite, paraffin, styrene, methacrylic acid, dodecanethiol and azobisisobutyronitrile at room temperature with magnetic stirring;
[0030] Step 3, adding the weighed sodium lauryl sulfate into 120 g of deionized water, and fully stirring at room temperature until the sodium lauryl sulfate is completely dissolved;
[0031] Step 4, the mixed solution obtained in step 2 is added to the mixed solution obtained in step 3, and fully stirred at room temperature for 0.5 hours;
[0032] Step five, ultrasonic emulsifying the mixed solution obtained in step four under ice bath for 10 minutes;
[0033] Step 6, the mixed solution obtained after step 5 ultrasonication is transferred into a four-neck fla...
Embodiment approach 2
[0043] Step 1, weigh 2 grams of modified nano-ferrite, use octadecane as paraffin, weigh 10 g of paraffin, 10 g of styrene, 0.2 g of methacrylic acid, 0.08 g of dodecyl mercaptan, and 0.2 g of sodium lauryl sulfate , Triton X-1000.2g, azobisisobutyronitrile 0.1g;
[0044] Step 2, uniformly mixing the modified nano-ferrite, paraffin, styrene, methacrylic acid, dodecanethiol and azobisisobutyronitrile at 35° C. by magnetic stirring;
[0045] Step 3, adding the weighed sodium lauryl sulfate and Triton X-100 into 120 g of deionized water, and fully stirring at 35° C. until the two substances are completely dissolved;
[0046] Step 4, the mixed solution obtained in step 2 is added to the mixed solution obtained in step 3, and fully stirred at 35° C. for 0.5 hours;
[0047] Step five, ultrasonic emulsifying the mixed solution obtained in step four under ice bath for 10 minutes;
[0048] Step 6, the mixed solution obtained after step 5 ultrasonication is transferred into a four-nec...
Embodiment approach 3
[0059] Step 1, weigh 2 grams of modified nano-ferrite, use hexadecane as paraffin, weigh 10 g of paraffin, 10 g of styrene, 0.5 g of methacrylic acid, 0.2 g of dodecyl mercaptan, and 0.1 g of sodium lauryl sulfate , Triton X-1000.2g, azobisisobutyronitrile 0.2g;
[0060] Step 2, uniformly mixing the modified nano-ferrite, paraffin, styrene, methacrylic acid, dodecanethiol and azobisisobutyronitrile at 45°C with magnetic stirring;
[0061] Step 3, adding the weighed sodium lauryl sulfate and Triton X-100 into 120 g of deionized water, and fully stirring at 45° C. until the two substances are completely dissolved;
[0062] Step 4, the mixed solution obtained in step 2 is added to the mixed solution obtained in step 3, and fully stirred at 45° C. for 0.5 hours;
[0063] Step five, ultrasonic emulsifying the mixed solution obtained in step four under ice bath for 10 minutes;
[0064] Step 6, the mixed solution obtained after step 5 ultrasonication is transferred into a four-neck...
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