Preparation method of wear-resistant colored pencil lead material
A pencil core and color pigment technology, applied in the field of pen core materials, can solve the problems of poor wear resistance, difficult to color the paper surface, light color, etc., to achieve the effect of improving hardness and wear resistance, and bright appearance
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example 1
[0030] Preparation of mixed slurry:
[0031] In a three-necked flask equipped with a thermometer, a stirrer, and a reflux device, add palm oil and diethanolamine at a mass ratio of 1:2, react at a temperature of 150°C for 2 hours, then lower the temperature to 70°C, and add palm oil with a content of 1.0 Double the diethanolamine, continue to react for 3h, obtain brown viscous transparent liquid, obtain white solid after natural cooling;
[0032] In parts by weight, under a nitrogen atmosphere, take 40 parts of the above-mentioned white solid, 1 part of stearic acid and 0.5 part of ethylene glycol, place them in a four-necked flask, heat up to 160 ° C, and stir at a speed of 600 r / min Mix and react for 4 hours to prepare a lubricating dispersant. Put 8 parts of colored enamel glaze, 30 parts of albite feldspar, 20 parts of potassium feldspar, and 40 parts of hydroxyl silicone oil emulsion with a mass fraction of 20% in a mixer at 100r / min After stirring at a rotating speed of...
example 2
[0040] Preparation of mixed slurry:
[0041] In a three-necked flask equipped with a thermometer, a stirrer, and a reflux device, add palm oil and diethanolamine at a mass ratio of 1:2, react at a temperature of 160°C for 2.5 hours, then cool down to 75°C, and add palm oil content 1.2 times of diethanolamine, continue to react for 3.5h, obtain brown viscous transparent liquid, obtain white solid after natural cooling;
[0042] In parts by weight, under a nitrogen atmosphere, take 45 parts of the above-mentioned white solid, 2 parts of stearic acid and 2.0 parts of ethylene glycol, place them in a four-necked flask, heat up to 190 ° C, and stir at a stirring speed of 700 r / min Mix and react for 4.5 hours to prepare a lubricating dispersant. Put 9 parts of colored enamel glaze, 35 parts of albite feldspar, 25 parts of potassium feldspar, and 45 parts of hydroxyl silicone oil emulsion with a mass fraction of 20% in a mixer at 110r / After stirring at a rotating speed of 35min for...
example 3
[0050] Preparation of mixed slurry:
[0051] In a three-necked flask equipped with a thermometer, a stirrer, and a reflux device, add palm oil and diethanolamine at a mass ratio of 1:2, react at a temperature of 170°C for 3 hours, then lower the temperature to 80°C, and add palm oil with a content of 1.5 Double the diethanolamine, continue to react for 4h, obtain brown viscous transparent liquid, obtain white solid after natural cooling;
[0052] In parts by weight, under a nitrogen atmosphere, take 50 parts of the above-mentioned white solid, 5 parts of stearic acid and 4.0 parts of ethylene glycol, place them in a four-necked flask, heat up to 220°C, and stir at a speed of 800r / min Mix and react for 5 hours to prepare a lubricating dispersant. Put 10 parts of colored enamel glaze, 40 parts of albite feldspar, 30 parts of potassium feldspar, and 50 parts of hydroxyl silicone oil emulsion with a mass fraction of 20% in a mixer at 120r / min After stirring at a rotating speed of...
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