Polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester and preparation method thereof

Abstract

The invention provides polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester. The polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester comprises alkenyl maleic anhydride with appropriate alkyl, alkyl fatty alcohol, polyethylene glycol with appropriate degree of polymerization and a catalyst. According to a preparation method of the polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester, the alkenyl maleic anhydride with the appropriate alkyl reacts with the alkyl fatty alcohol under the action of the catalyst to generate monoalkyl alkenyl succinate; the monoalkyl alkenyl succinate reacts with the polyethylene glycol with an appropriate degree of polymerization to obtain the polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester. The polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester has excellent emulsifying property due to adoption of a specific chemical molecular structure; a universal low-molecular-weight emulsifying agent and the invented high-molecular-weight emulsifying agent are compounded in an adjusted proportion for use; the diameters of emulsion particles of produced steel plate rolling oil can be controlled; and required stable lubrication property in a steel plate rolling process can be maintained. The prepared the polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester has low oil coke generation tendency and good annealing detergency property after rolling of steel plates and overcomes the problem of complexity of a rolling oil formula. The polyethylene glycol double-alkenyl succinic acid monoalkyl-ester ester is used in the field of steel plate rolling.

Description

technical field [0001] The invention relates to the field of steel plate rolling oil, in particular to a steel plate rolling oil emulsification additive polyethylene glycol bisalkenyl succinate monoalkyl ester having emulsifying performance and capable of stabilizing the particle size of the emulsified liquid and a preparation method thereof. Background technique [0002] The present invention relates to a lubricating oil additive for cold rolling steel sheets and strips. When cold-rolling steel plates, it must go through various processes such as pickling-cold rolling-cleaning-annealing-levelling-inspection. The composition of general steel plate cold rolling oil is based on grease, mineral oil or fatty acid synthetic fat, etc., adding various emulsifiers, antirust agents, extreme pressure agents, lubricants, oily agents, antioxidants and other additives. into an oil-in-water emulsion. Usually used at a concentration of 1-20%, it can play a lubricating role to prevent th...

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Problems solved by technology

[0003] The purpose of this invention is to provide a kind of polyethylene glycol double alkenyl succinate monoalkyl ester and preparation method, by adopting a specific The chemical molecular structure makes it have excellent emulsifying properties. Adjusting the ratio of the general-purpose low-molecular emulsifier and the invented high-molecular emulsifier for compound use can control the diameter of the emulsion particles of the steel rolling oil produced, and in Maintain the required stable lubricating performance during the rolling process of the steel plate, and have a low tendency to generate oil coke and good annealing cleanliness after the rolling of the steel plate, solving the problem of complex rolling oil formulations

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