Protective coating liquid of engine
A protective coating and engine technology, applied in the petroleum industry, additives, lubricating compositions, etc., can solve problems such as inability to wear and fill, poor repair effect, etc., to achieve increased sealing, excellent repair performance, and prevention of agglomeration Effect
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Embodiment 1
[0021] Take by weighing preferably 1.5% polytetrafluoroethylene whose molecular chain length is less than or equal to 3 microns, join in dispersant 13.3%, adopt high-speed dispersion, rotating speed 1300 revs / min, to fineness less than 2 μ m, obtain predispersion I- 1.
[0022] Take 71.1% of 100N base oil and 8% of viscosity index improver, add to dispersion I-1, disperse at low speed for 30 minutes, rotate at 300 rpm, control temperature within 50°C, and filter to obtain dispersion II-1.
[0023] Add 6% of the adhesive to the dispersion II-1, mix at a low speed of 200 rpm for 30 minutes, control the temperature within 50°C, filter and subpackage, and record it as sample S1.
Embodiment 2
[0025] Take preferably 2.6% polytetrafluoroethylene with molecular chain length less than or equal to 3 microns, join in dispersant 11.1%, adopt high-speed dispersion, rotating speed 1400 rev / min, to fineness less than 2 μ m, obtain predispersion I- 2.
[0026] Take 70.7% of 100N base oil and 8.9% of viscosity index improver, add to dispersion I-2, disperse at low speed for 40 minutes, rotate at 600 rpm, control temperature within 50°C, and filter to obtain dispersion II-2.
[0027] Add 6.7% of the adhesive to the dispersion II-2, mix at a low speed of 200 rpm for 30 minutes, control the temperature within 50°C, filter and subpackage, and record it as sample S2.
Embodiment 3
[0029] Take preferably 4.5% polytetrafluoroethylene with molecular chain length less than or equal to 3 microns, join in dispersant 12.9%, adopt high-speed dispersion, rotating speed 1550 rev / min, to fineness less than 2 μ m, obtain predispersion I- 3.
[0030] Take 65% of 100N base oil and 11.1% of viscosity index improver, add to dispersion I-2, disperse at low speed for 30 minutes, rotate at 450 rpm, control temperature within 50°C, and filter to obtain dispersion II-3.
[0031] Add 7.5% of the adhesive to the dispersion II-3, mix at a low speed of 200 rpm for 50 minutes, control the temperature within 50°C, filter and pack, and record as sample S3.
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