Antifreezing cooling liquid
An antifreeze coolant, propylene glycol technology, applied in the field of coolant, can solve the problems of poor antifreeze ability of coolant, high viscosity of diethylene glycol at low temperature, high vapor pressure, etc. good sex effect
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[0012] An antifreeze coolant, made of the following components in parts by weight, 150 parts of propylene glycol and ethylene glycol blend, 15 parts of potassium citrate, 10 parts of simethicone, 2 parts of sorbitol, 6 parts of boric acid, borax 5 parts, 8 parts of pentaerythritol, 12 parts of glycerin.
[0013] Further, the blend of propylene glycol and ethylene glycol is propylene glycol and ethylene glycol mixed at a ratio of 1:3 at 35-40°C, and then uniformly stirred for 30 minutes at a stirring speed of 300 r / min.
[0014] Further, the borax is pretreated: the borax is first treated at a constant temperature of 400°C for 30 minutes, and then put into a 300MHZ microwave for 40 minutes for calcining.
[0015] Further, the simethicone is pretreated: a mixture of 1.5 parts by weight of oligoethylene glycol methyl glycidyl ether and octamethylcyclotetrasiloxane is mixed with simethicone, The temperature is 55°C, and the reaction is carried out for 3-4 hours; the polyethylene ...
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