Antirust oil and preparation method thereof
A technology of anti-rust oil and anti-rust agent, which is applied in the petroleum industry, lubricating composition, etc., can solve the problems of the hard film anti-rust oil's poor heat and humidity resistance, salt spray resistance, insufficient hardness of the coating film, and poor protection. , to achieve good anti-rust effect and fast drying speed
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[0053] In one embodiment, the present invention also discloses a method for preparing anti-rust oil, which includes the following steps:
[0054] Add most of the base oil to the reactor and heat and stir. When the temperature rises to 90-120°C, add rust inhibitors, cosolvents, and antioxidants, stir well to dissolve them completely, and reduce the temperature in the reactor to 50- At 80°C, slowly add the film-forming agent and the remaining base oil, fully stir until the dissolution is complete, cool to room temperature, detect the discharge, and complete the preparation;
[0055] Among them, the mass fraction of each component is: 20-35% film-forming agent, 5-15% rust inhibitor, 0.1-5% cosolvent, 0.1-2% antioxidant, 40-75% base oil;
[0056] Wherein, the film forming agent is any one or a combination of t-butylphenol formaldehyde resin, petroleum resin, lanolin, rosin and maleic anhydride.
[0057] Preferably, the rust inhibitor is any one or a combination of barium petroleum sulfona...
Example Embodiment
[0070] Example 1
[0071] In this example, the raw materials were prepared according to the ratio (weight percentage) shown in Table 1.
[0072] Step one, put the rosin and maleic anhydride into the reaction kettle, heat up to 90±5°C, stir, add tert-butylphenol formaldehyde resin and lanolin in sequence, heat up to 140±10°C, and keep it for 1 hour.
[0073] Step 2: When the temperature drops to 80-90°C, add part of the base oil to the reaction kettle and stir to prepare a film-forming resin, which is kept for later use.
[0074] Step 3: Add the remaining base oil to the empty reaction kettle and stir, add rust inhibitor, cosolvent, and antioxidant, raise the temperature to 60-70°C, stir well to make it completely dissolved.
[0075] Step 4: The internal temperature of the reaction kettle is lowered to 50-60°C, and then the film-forming resin obtained in Step 2 is slowly added, fully stirred, cooled to room temperature, sampled for inspection, filtered after passing the test, and the pre...
Example Embodiment
[0079] Example 2-3
[0080] The experimental procedure is the same as that of Example 1, except that the raw material ratio shown in Table 1 is different.
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