Anti-counterfeiting oil product and preparation method thereof
A technology of oil products and anti-counterfeiting agents, which is applied in the field of fluorescent anti-counterfeiting, can solve the problems of not being able to completely eliminate counterfeit and inferior oil products, the inability to realize oil product identification and anti-counterfeiting, and rising production costs, and achieve good identification and anti-counterfeiting effects and excellent luminous efficiency , the effect of strong reliability
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Embodiment 1
[0034] A preparation method of anti-counterfeit oil, comprising the following steps:
[0035] (1) In the oleic acid / oleylamine system, add zinc oxide and cadmium oxide as precursor sources, wherein the molar ratio of zinc to cadmium is 20:1; heat to 220°C to react zinc oxide, cadmium oxide and oleic acid complete, to obtain zinc oleate and cadmium oleate; raise the temperature to 280°C, add selenium oleate and sulfur oleate, and react at this temperature for 20 minutes to obtain ZnCdSe / ZnS quantum dot material; add ZnCdSe / ZnS quantum dot material to n-hexane In alkane, disperse by stirring to obtain anti-counterfeiting agent;
[0036] Among them, the ZnCdSe / ZnS quantum dot material is one of the II-VI semiconductor quantum dot materials, the emission wavelength is 620nm, the emission half-maximum width is 30nm, and the particle size is 10nm; the concentration of ZnCdSe / ZnS quantum dot material in the anti-counterfeiting agent 10mg / mL;
[0037] (2) Use a pipette gun to pipett...
Embodiment 2
[0048] The preparation method of the anti-counterfeit oil in Example 2 is basically the same as that in Example 1, the only difference being that in Example 2, after the anti-counterfeit agent is added to the lubricating oil, the method of vacuum pumping is used to remove n-hexane to obtain the anti-counterfeit oil products to reduce the influence of heating temperature on some oil products that are sensitive to heat, and ensure that the quality of oil products will not be affected during the process of adding anti-counterfeiting agents.
[0049] A preparation method of anti-counterfeit oil, comprising the following steps:
[0050] (1) In the oleic acid / oleylamine system, add zinc oxide and cadmium oxide as precursor sources, wherein the molar ratio of zinc to cadmium is 20:1; heat to 220°C to react zinc oxide, cadmium oxide and oleic acid complete, to obtain zinc oleate and cadmium oleate; raise the temperature to 280°C, add selenium oleate and sulfur oleate, and react at thi...
Embodiment 3
[0059] A preparation method of anti-counterfeit oil, comprising the following steps:
[0060] (1) the preparation of the first anti-counterfeiting agent: first prepare organic hybridization methylammonium iodide reagent under dark and room temperature conditions; Prepare the inorganic lead bromide reagent that solvent is toluene again; Finally combine organic hybridization methylammonium iodide reagent and Inorganic lead bromide reagents are mixed according to the molar ratio of 1:1, and stirred to obtain CH 3 NH 3 ikBr 2 quantum dot material; the CH 3 NH 3 ikBr 2 The quantum dot material is added to toluene and dispersed by shaking to obtain the first anti-counterfeiting agent;
[0061] (2) Preparation of the second anti-counterfeiting agent: first in the oleic acid / oleylamine system, add lead oxide precursor source; be heated to 160 ℃ to make lead oxide and oleic acid react completely, obtain lead oleate transparent solution; heat up to 220 ℃ , adding a selenium oleate...
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