Substation screen cabinet cleaning tool
A technology for cleaning tools and substations, applied in the field of cleaning tools, can solve problems such as threatening the safe and stable operation of the system, affecting the performance of components, affecting the heat dissipation of components, etc., and achieves good heat resistance, low manufacturing cost, and good peeling resistance. Effect
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[0023] The preparation of the insulating material comprises the following steps:
[0024] Add sulfolane and 4,4'-difluorobenzophenone into the high-temperature reaction kettle, raise the temperature to 145°C under the protection of nitrogen, then add potassium carbonate as a catalyst, and add hydroquinone and chloromethyl alkane after it dissolves Base ether, heat up to 215°C for 1 hour, then heat up to 270°C, hold for 1 hour, and finally raise the temperature to 330°C for 2 hours. The whole reaction process is in a stirring state. After the reaction is over, pour the reaction system into ice Cool in water, filter, collect the filter cake, wash the filter cake with water, and dry to obtain chloromethylated polyether ether ketone resin; 4,4'-difluorobenzophenone, hydroquinone, potassium carbonate and methyl chloride The molar ratio of alkyl ether is 1:0.8:1.8:0.3; the mass ratio of sulfolane to 4,4'-difluorobenzophenone is 55:1;
[0025] will step The obtained chlorometh...
Embodiment 1
[0033] The insulating material is composed of the following raw materials in parts by weight: 30g of chloromethylated polyetheretherketone resin, 2g of aluminum hydroxide, 1g of silicon carbide, 10g of polyvinyl alcohol, 3g of activated clay, 4g of polyimide fiber, and 1g of phthalate plasticizer, 2g of butyl hydroxyanisole, 1g of titanium dioxide and 4g of barium stearate; the chloromethylated polyetheretherketone resin is obtained by the following steps: adding 10910g of sulfolane and 1mol of 4,4'-difluorobenzophenone, heated up to 140°C under nitrogen protection, then added 1.5mol of potassium carbonate as a catalyst, after it was dissolved, added 0.5mol of hydroquinone and 0.2mol of chloromethyl For alkyl ether, raise the temperature to 210°C for 1 hour, then raise the temperature to 260°C, keep it for 1 hour, and finally raise the temperature to 325°C for 2 hours. The whole reaction process is in a stirring state. Cool in water, filter, collect filter cake, wash the filte...
Embodiment 2
[0035] The insulating material is composed of the following raw materials in parts by weight: chloromethylated polyetheretherketone resin 50g, aluminum hydroxide 4g, silicon carbide 3g, polyvinyl alcohol 20g, activated clay 5g, polyimide fiber 8g, ortho 3g of phthalate plasticizer, 4g of butyl hydroxyanisole, 3g of titanium dioxide and 8g of barium stearate; the chloromethylated polyetheretherketone resin is obtained by the following steps: adding 13092g sulfolane and 1mol 4,4'-difluorobenzophenone, heated up to 150°C under the protection of nitrogen, then added 2mol potassium carbonate as a catalyst, after it dissolved, added 1mol hydroquinone and 0.4mol chloromethyl alkyl For ether, raise the temperature to 220°C for 1 hour, then raise the temperature to 275°C, keep it for 1 hour, and finally raise the temperature to 335°C for 2 hours. The whole reaction process is in a stirring state. After the reaction is completed, pour the reaction system into 5°C water to cool. , filter...
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