A recovery treatment agent for lauric acid modified magnetorheological fluid and its preparation method

Abstract

The invention discloses a recycling agent for a magnetorheological fluid modified by lauric acid and a preparation method for the recycling agent, and belongs to the technical field of recycling of the magnetorheological fluid. The recycling agent comprises the following components in parts by mass (based on 100 parts): 15-20 parts of corn cobs, 15-20 parts of peanut shells, 5-8 parts of sodium dodecyl benzene sulfonate and the balance of water. According to the recycling agent, hydroxyls contained on cellulose, hemicellulose and lignin of a biological material and carboxyl on lauric acid generate esterification reaction to form an alkyl chain in which an ester group is connected with lauric acid, so that the lipophilic-hydrophobic property is strengthened; due to the pore-forming effect of the recycling agent, micro pores of the biological material are further increased, and the porosity of the biological material is increased, therefore, main dispersion particles in the magnetorheological fluid settle; and moreover, due to the adsorption effect of the biological material, a surfactant and an additive are adsorbed, so that other components in the magnetorheological fluid are further separated, and the effect of treating waste with waste is achieved.

Description

technical field [0001] The invention belongs to the technical field of recovery and treatment of magnetic waste liquid, and more specifically relates to a recovery treatment agent for lauric acid-modified magnetorheological fluid and a preparation method thereof. Background technique [0002] Magnetorheological Fluid (MR fluid for short) is a controllable fluid, which is a relatively active research in smart materials. Magnetorheological fluid is a suspension formed by mixing tiny soft magnetic particles with high magnetic permeability and low magnetic hysteresis and non-magnetic liquid. Magnetorheological fluid has been widely valued for its unique magnetorheological effect. Magnetorheological fluid is a suspension formed by distributing micron-scale ferromagnetic particles in a non-magnetic liquid. Under the action of an external magnetic field, the properties of the magnetorheological fluid (such as rheology, magnetism, mechanics, heat, optics, etc.) change rapidly, fro...

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Problems solved by technology

[0007] Aiming at the problems that the oleic acid-modified magnetorheological fluid cannot be recovered and treated in the prior art, and there is secondary pollution, the present invention provides a recovery treatment agent for the lauric acid-modified magnetorheological fluid and its preparation method, which can be processed by using The agent changes the properties of lauric acid in the magnetorheological fluid, improves its lipophilicity and hydrophobicity, and greatly weakens the interaction between the surfactant and the main dispersed particles, resulting in the interaction between the main dispersed particles and the carrier liquid in the magnetorheological fluid. The bonding effect is eliminated, so that the main dispersed particles can settle rapidly under the action of their own gravity, so that the main dispersed particles and the carrier liquid are separated, which provides a basis for the subsequent recycling of magnetorheological fluid