A kind of environment-friendly trace lubricant and preparation method thereof
A technology of trace lubricant and lubricant composition, applied in the field of lubrication, can solve the problems of environmentally unfriendly sulfur-containing and chlorine-containing additives, pollution, large amount of lubricant used, etc., and achieves remarkable environmental protection effect and good biodegradability. , the effect of good lubricating performance
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Embodiment 1
[0034] Weigh 304.42g (1mol) lactoic acid and 344.52g (2mol) capric acid into the reactor, add a catalyst (8g cation exchange resin), and react at a temperature of 220°C for 3 hours under nitrogen protection; Moisture is removed under reduced pressure; ie, a lubricant composition.
[0035] Weigh and weigh 400g of lubricant composition, 200g of sophorolipid, 100g of polysucrose caprate, 50g of sodium castor oil sulfonate, 50g of isostearyl alcohol, and 200g of deionized water, mix and stir at room temperature until translucent. A micro lubricant.
[0036] The preparation method of above-mentioned polysucrose decanoate:
[0037] Step 1: Add 342.3g (1mol) of sucrose, 139.28g (1.2mol) of maleic acid, 1033.56g (6mol) of n-decanoic acid, and 10g of catalyst (10% dilute sulfuric acid) into the reaction kettle, at a reaction temperature of 220°C React for 4 hours; after the reaction, depressurize and discharge the water, which is sucrose caprate;
[0038] Step 2. When the temperatur...
Embodiment 2
[0040] Weigh 304.42g (1mol) of lactoic acid and 300.48g (1.5mol) of lauric acid into the reactor, add the catalyst (1.8g of phosphotungstic acid), and react at a temperature of 180°C for 5 Hours; decompression to remove moisture; that is, a lubricant composition.
[0041] Weigh and weigh 300g of lubricant composition, 300g of sophorolipid, 200g of polysucrose laurate, 70g of sodium castor oil sulfonate, 80g of isostearyl alcohol, and 50g of deionized water, mix and stir at room temperature until translucent. A micro lubricant.
[0042] The preparation method of above-mentioned polysucrose laurate:
[0043] Step 1: Add 342.3g (1mol) of sucrose, 116.07g (1mol) of fumaric acid, 900.96g (3mol) of lauric acid, and 2g of phosphotungstic acid into the reactor, and react at a reaction temperature of 180°C for 5 hours; after the reaction Decompress and discharge water, which is sucrose laurate;
[0044] Step 2. When the temperature in the reactor drops below 100°C, add 1g of initiat...
Embodiment 3
[0046] Weigh 304.42g (1mol) of lactoic acid and 342.56g (1.5mol) of myristic acid into the reaction kettle, add the catalyst (1g of phosphotungstic acid), and react at a temperature of 200°C for 4 hours under nitrogen protection ; Decompression to remove moisture; that is, a lubricant composition.
[0047] Weigh and weigh 350g of lubricant composition, 250g of sophorolipid, 150g of polysucrose stearate, 60g of sodium castor oil sulfonate, 90g of isostearyl alcohol, and 100g of deionized water, mix and stir at room temperature until translucent. It is a micro lubricant.
[0048] The preparation method of above-mentioned polysucrose stearate:
[0049]Step 1: Add 342.3g (1mol) of sucrose, 98.08g (1mol) of maleic anhydride, 1137.92g (4mol) of stearic acid, and 5g of phosphotungstic acid into the reactor, and react at a reaction temperature of 200°C for 4.5 hours; After decompression to discharge water, it is sucrose stearate;
[0050] Step 2. When the temperature in the reactor...
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