CN104293427B

CN104293427B - A kind of copper ROLLING OIL of oxidation and corrosion and preparation method thereof

Info

Publication number: CN104293427B
Application number: CN201410499536.2A
Authority: CN
Inventors: 孙建林; 熊桑; 徐阳
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2014-09-25
Filing date: 2014-09-25
Publication date: 2016-08-24
Anticipated expiration: 2034-09-25
Also published as: CN104293427A

Abstract

Copper ROLLING OIL of a kind of oxidation and corrosion and preparation method thereof, belongs to technical field of lubricant.It is characterized in that by hydrogenated base oil 60N, sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines, 2,6 di-t-butyl mixed phenols, dimercaptothiodiazole, methylbenzotrazole, cocos nucifera oil acid esters and Nitrogen-and Phosphorus-containing borate are sequentially added into, putting into and being placed on rotating speed is to carry out heated and stirred in 80 120 revs/min of reactors, when temperature reaches 70～80 DEG C, it is incubated and continuously stirred 30 minutes, stop heating subsequently and continue stirring to room temperature, obtain clear homogeneous oil body, i.e. it is made into required antioxidation, corrosion resistant ROLLING OIL, to solve copper surface easy oxidation discoloration problem.The present invention uses molecular dynamics as theoretical direction, and the optimum additive of screenability from a large amount of additives, method is simple, easily operates, and repeatability is high, the shortest, economical, efficiently.

Description

A kind of copper ROLLING OIL of oxidation and corrosion and preparation method thereof

Technical field

The present invention relates to technical field of lubricant, the lubrication in process of metal working, its particularly base one resist Aoxidize corrosion resistant copper ROLLING OIL and preparation method thereof.

Background technology

Molecular Dynamics Calculation belongs to the method for statistical mechanics level, using atom as minimum unit, does not consider electronics Motion, can simulate bigger, more complicated system by molecular computing, analyze the change of each state parameter of system in time, point Subdynamics is widely used in the selection of medical science aspect medicine, is the important reason of the research such as applied molecular biology, biological engineering Opinion foundation.In process of metal working, rolling mill practice lubrication link is essential, and copper Surface Oxygen usually occurs in subsequent handling Change variable color, have a strong impact on the apparent of product and serviceability.Technical field of lubricant, copper additives is of a great variety, relies in the past Experience or trial-and-error method select additive, lack theoretical direction.Therefore, in the urgent need to utilizing Molecular Dynamics method to select suitably Copper rolling oil additives, prepares the copper ROLLING OIL of a kind of oxidation and corrosion, solves copper surface easy oxidation discoloration problem with this.

Summary of the invention

It is an object of the invention to provide the copper ROLLING OIL of a kind of oxidation and corrosion, solve copper surface with metal processing sectors Easy oxidation discoloration problem.Copper ROLLING OIL of the present invention is prepared based on molecule power theory.

The technical scheme is that: preparing the copper ROLLING OIL of a kind of oxidation and corrosion, it is main Component and shared percentage by weight are as follows.

It is 1:1:1 that antioxidant sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines and 2,6-di-t-butyl mixed phenol compound weight ratio ～4:5:1, it is 1:3 that corrosion inhibiter selects acid restrainer dimercaptothiodiazole and alkaline corrosion inhibitor methylbenzotrazole to join weight ratio ～3:1, oiliness improver selects cocos nucifera oil acid esters, and extreme pressure agent selects Nitrogen-and Phosphorus-containing borate.The manufacture method of this ROLLING OIL: will hydrogenation basis Oil 60N, sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines, 2,6-di-t-butyl mixed phenol, dimercaptothiodiazole, methylbenzotrazole, Cocos nucifera oil acid esters and Nitrogen-and Phosphorus-containing borate are sequentially added into, and putting into and being placed on rotating speed is to carry out heating in 80-120 rev/min of reactor to stir Mix, when temperature reaches 70～80 DEG C, insulation continuously stirred 30 minutes, stop heating subsequently and continue to stir to room temperature, obtain Clear homogeneous oil body, is i.e. made into required antioxidation, corrosion resistant ROLLING OIL.

The present invention utilizes Molecular Dynamics method to prepare the copper rolling oil additives of oxidation and corrosion, leads for intermetallic composite coating The selection of territory additive provides theoretical direction.Specifically complete according to following steps:

1. use density functional theory to additive molecule methyl benzotriazazole (TTA) and dimercaptothiodiazole (DMDT) Carrying out Geometrical optimization, resulting structures energy is minimal point in potential energy level.The highest according to additive molecule Frontier orbital distribution Account for track (HOMO), lowest unoccupied molecular orbital (LUMO), estimate the overall situation of additive molecule, local response reactivity parameter chemical potential μ, softness S, hardness η, electrophilic index ω and Fukui index.Overall situation reactivity HOMO=-5.726eV, LUMO=-in TTA 2.015eV, μ=-3.871eV, S=0.539eV, η=1.856eV and ω=10.785eV, local response activity Fukui (+)_N(3)=0.162au and Fukui (-)_n(4)=0.108au；Overall situation reactivity HOMO=-6.179eV, LUMO=-in DMDT 2.932eV, μ=4.556eV, S=0.616eV, η=1.623eV and ω=12.790eV, local response activity Fukui (+)_s(7)=0.308au and Fukui (-)_N(5)=0.178au.

2. using Molecular Dynamics method, choosing the crystal faces such as crystal Cu (100) is absorption surface, and surface system is metal raw Son, " freezes " all atoms in surface system during calculating, binding molecule keeps freely interacting, to body with metal surface System carries out structure, energy-optimised, the absorption on estimation additive molecule methyl benzotriazazole, dimercaptothiodiazole and copper surface Energy.TTA and DMDT is respectively 235KJ mol with the energy of adsorption of Cu (110) crystal face^-1With 267KJ mol^-1。

The present invention designs antioxidation multi-functional with compatibility based on molecular dynamics as theoretical direction, corrosion resistant copper rolls Liquefaction additive, advantage is that method is simple, easily operates, and repeatability is high, the shortest, economical, efficient, is used directly for gold The rolling course of processing belonged to.

Detailed description of the invention

Below in conjunction with 3 embodiments, the present invention is further described:

Embodiment 1:

By each composition weight formula of upper table, by hydrogenated base oil 60N, sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines, 2,6- Di-t-butyl mixed phenol, dimercaptothiodiazole, methylbenzotrazole, cocos nucifera oil acid esters and Nitrogen-and Phosphorus-containing borate are sequentially added into, antioxygen Agent sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines and 2,6-di-t-butyl mixed phenol compound proportion is 1:1:1, acid restrainer two mercapto It is 1:3 that base thiadiazoles and alkaline corrosion inhibitor methylbenzotrazole join weight ratio, and putting into and being placed on rotating speed is 80-120 rev/min of reaction Still carries out heated and stirred, when temperature reaches 70～80 DEG C, insulation continuously stirred 30 minutes, stop heating subsequently and continue to stir Mix to room temperature, obtain clear homogeneous oil body, be i.e. made into required antioxidation, corrosion resistant ROLLING OIL.

Embodiment 2:

By each composition weight formula of upper table, by hydrogenated base oil 60N, sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines, 2,6- Di-t-butyl mixed phenol, dimercaptothiodiazole, methylbenzotrazole, cocos nucifera oil acid esters and Nitrogen-and Phosphorus-containing borate are sequentially added into, antioxygen Agent sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines and 2,6-di-t-butyl mixed phenol compound proportion is 2:2:1, acid restrainer two mercapto It is 2:1 that base thiadiazoles and alkaline corrosion inhibitor methylbenzotrazole join weight ratio, and putting into and being placed on rotating speed is 80-120 rev/min of reaction Still carries out heated and stirred, when temperature reaches 70～80 DEG C, insulation continuously stirred 30 minutes, stop heating subsequently and continue to stir Mix to room temperature, obtain the uniform oil body of micro-Huang, be i.e. made into required antioxidation, corrosion resistant ROLLING OIL.

Embodiment 3:

By each composition weight formula of upper table, by hydrogenated base oil 60N, sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines, 2,6- Di-t-butyl mixed phenol, dimercaptothiodiazole, methylbenzotrazole, cocos nucifera oil acid esters and Nitrogen-and Phosphorus-containing borate are sequentially added into, antioxygen Agent sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines and 2,6-di-t-butyl mixed phenol compound proportion is 2:3:1, acid restrainer two mercapto It is 1:2 that base thiadiazoles and alkaline corrosion inhibitor methylbenzotrazole join weight ratio, and putting into and being placed on rotating speed is 80-120 rev/min of reaction Still carries out heated and stirred, when temperature reaches 70～80 DEG C, insulation continuously stirred 30 minutes, stop heating subsequently and continue to stir Mix to room temperature, obtain clear homogeneous oil body, be i.e. made into required antioxidation, corrosion resistant ROLLING OIL.

Two, the additive molecule performance indications prepared are as follows:

The embodiment of the above only for the present invention preferably execute example, not limit the practical range of the present invention with this, therefore All component ratios according to the present invention, the equivalence change that method and principle are made, all should contain and be placed on protection scope of the present invention.

Claims

1. the manufacture method of the copper ROLLING OIL of an oxidation and corrosion, it is characterised in that choose sulfur phosphorus alkyl phenol zinc salt, phenyl Changing naphthylamines and 2,6-di-t-butyl mixed phenol is as antioxidant, and its weight ratio is 1:1:1～4:5:1, and corrosion inhibiter selects acidity slow Erosion agent dimercaptothiodiazole and alkaline corrosion inhibitor methylbenzotrazole, weight ratio is 1:3～3:1, and oiliness improver selects cocos nucifera oil acid esters, Extreme pressure agent selects Nitrogen-and Phosphorus-containing borate；Key component and shared percentage by weight are as follows: hydrogenated base oil 60N:88-95%, sulfur Phosphorus alkyl phenol zinc salt: 0.01-2.00%, phenylating naphthylamines: 0.01-2.50%, 2,6-di-t-butyl mixed phenol: 0.01- 0.05%, dimercaptothiodiazole: 0.01-0.10%, methylbenzotrazole: 0.01-0.30%, cocos nucifera oil acid esters: 4.5-11.0%, Nitrogen-and Phosphorus-containing borate: 0.05-2.00%；

Concrete manufacture method is:

By hydrogenated base oil 60N, sulfur phosphorus alkyl phenol zinc salt, phenylating naphthylamines, 2,6-di-t-butyl mixed phenol, dimercapto thiophene two Azoles, methylbenzotrazole, cocos nucifera oil acid esters and Nitrogen-and Phosphorus-containing borate are sequentially added into, put into be placed on rotating speed be 80-120 rev/min anti- Answer and still carries out heated and stirred, when temperature reaches 70～80 DEG C, insulation continuously stirred 30 minutes, stop heating subsequently and continue Stirring, to room temperature, obtains clear homogeneous oil body, is i.e. made into required antioxidation, corrosion resistant ROLLING OIL.