Trimellitate lubricating oil base oil based on polyricinoleic acid modification and preparation method thereof
A technology of trimellitic acid and trimellitic anhydride, which is applied in the field of lubricating oil, can solve the problems of other adverse effects of base oil and the reduction of lubricating performance of lubricating oil, so as to avoid adverse effects, enhance thermal stability, and increase added value Effect
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Embodiment 1
[0034] A kind of preparation method based on 2-polyricinoleic acid modified TMT lubricating oil base oil, its steps are as follows:
[0035] 50g of ricinoleic acid was added to a 250mL there-necked flask, 1% (in terms of total reactant mass) catalyst was added, and the reaction was performed under reduced pressure at 120°C for 8h to obtain 2-polyricinoleic acid; 0.55mol of trimellitic anhydride and 0.5mol 2-polyricinoleic acid was added together in a 250mL there-necked flask, heated to 80°C, and reacted for 5h to obtain an embedded polyester intermediate; The esterification reaction was carried out at ℃ for 8 hours; after the reaction was completed, the residual isobutanol was removed by vacuum distillation at 100℃, and the catalyst was removed by filtration to obtain the 2-polyricinoleic acid modified TMT lubricating oil base Oil.
Embodiment 2
[0037] A kind of preparation method based on 4-polyricinoleic acid modified TMT lubricating oil base oil, its steps are as follows:
[0038] 100g of ricinoleic acid was added to a 250mL there-necked flask, 1% (in terms of total reactant mass) catalyst was added, and the reaction was performed under reduced pressure at 180°C for 8h to obtain 4-polyricinoleic acid; 0.55mol of trimellitic anhydride and 0.5mol 4-polyricinoleic acid was added together in a 250mL three-necked flask, heated to 70°C, and reacted for 6h to obtain an embedded polyester intermediate; The esterification reaction was carried out at ℃ for 8 hours; after the reaction was completed, the residual isobutanol was removed by vacuum distillation at 100℃, and the catalyst was removed by filtration to obtain the 4-polyricinoleic acid modified TMT lubricating oil base Oil.
[0039] attached figure 2 It is embodiment 2 gained 4- polyricinoleic acid modified TMT base oil FT-IR test result figure, wherein (a) is trim...
Embodiment 3
[0043] A kind of preparation method based on 8-polyricinoleic acid modified TMT lubricating oil base oil, its steps are as follows:
[0044] 100g of ricinoleic acid was added to a 250mL there-necked flask, 1% (in terms of total reactant mass) catalyst was added, and the reaction was performed under reduced pressure at 200°C for 8h to obtain 8-polyricinoleic acid; 0.55mol of trimellitic anhydride and 0.5mol 8-polyricinoleic acid was added together in a 250mL three-necked flask, heated to 100°C, and reacted for 4h to obtain an embedded polyester intermediate; The esterification reaction was carried out at ℃ for 8 hours; after the reaction was completed, the residual isobutanol was removed by vacuum distillation at 100 ℃, and the catalyst was removed by filtration to obtain the 8-polyricinoleic acid modified TMT lubricating oil base Oil.
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