Method for preparing enameled refractory appliance switch material
An electrical switch and fire-resistant technology, which is applied in the field of switch material preparation, can solve problems such as unsatisfactory insulation performance and fire resistance, and poor quality of switch materials, and achieve the effects of easy control of operating conditions, extended service life, and simple operation process
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example 1
[0017] First, measure 100mL of ethanol solution with a mass fraction of 95% and add it to the beaker, and adjust the pH of the ethanol solution to 3.0 with glacial acetic acid, add 2g of silane coupling agent KH-570, stir at 300r / min for 20min, add 100g of kaolin to the beaker, 1.5 g sodium hexametaphosphate, and continue to stir for 30 minutes to obtain a mixed solution, transfer the mixed solution to a ball mill jar, add 800g zirconia beads, place it in a ball mill and mill it for 2 hours, then add it to a 105°C drying oven and dry to constant weight. 20g hydrotalcite, add 180mL deionized water, stir and mix at 300r / min for 15min, add 5g sodium dodecylbenzene sulfonate, 5g Tween-80, continue stirring in 80℃ oil bath After 30 minutes, the mixed slurry was obtained, and the mixed slurry was suction-filtered, and the filter cake was washed with deionized water for 3 times, then transferred to a 105°C drying oven and dried to constant weight to obtain modified hydrotalcite; respe...
example 2
[0020] First, measure 110mL of ethanol solution with a mass fraction of 95% and add it to the beaker, and adjust the pH of the ethanol solution to 3.5 with glacial acetic acid, add 2.2g of silane coupling agent KH-570, stir at 350r / min for 25min, add 150g of kaolin to the beaker, 1.55g of sodium hexametaphosphate, continue to stir for 35 minutes to obtain a mixed solution, transfer the mixed solution into a ball mill tank, add 850g of zirconia beads, put it in a ball mill and mill for 2.5 hours, then add it to a 107°C drying oven to dry to constant weight, Modified kaolin was obtained and set aside; 23g of hydrotalcite was weighed, added to 200mL of deionized water, stirred and mixed at 350r / min for 17min, 5.5g of sodium dodecylbenzenesulfonate and 5.5g of Tween-80 were added, and oil Continue to stir in the bath for 35 minutes to obtain a mixed slurry. Suction filter the mixed slurry, wash the filter cake with deionized water for 4 times, and transfer it to a 107°C drying oven...
example 3
[0023] First, measure 120mL of ethanol solution with a mass fraction of 95% and add it to the beaker, and adjust the pH of the ethanol solution to 4.0 with glacial acetic acid, add 2.4g of silane coupling agent KH-570, stir at 400r / min for 30min, add 120g of kaolin to the beaker, 1.6g of sodium hexametaphosphate, continue stirring for 40min to obtain a mixed solution, transfer the mixed solution into a ball mill jar, add 900g of zirconia beads, place in a ball mill and mill for 3 hours, then add it to a 110°C drying oven and dry to constant weight to obtain Modified kaolin, set aside; weigh 25g of hydrotalcite, add 225mL of deionized water, stir and mix at 400r / min for 20min, add 6g of sodium dodecylbenzenesulfonate, 6g of Tween-80, and continue to Stir for 40 minutes to obtain a mixed slurry, filter the mixed slurry with suction, wash the filter cake with deionized water for 5 times, transfer it to a 110°C drying oven and dry to constant weight to obtain a modified hydrotalcit...
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