CN104862681A - Sericin emulsified metal surface treating agent - Google Patents

Abstract

The invention discloses a sericin emulsified metal surface treating agent. The sericin emulsified metal surface treating agent is composed of, in parts by weight, 0.5 part to 1 part of peregalO-20, 0.4 part to 1 part of potassium hydrogen sulfate, 0.7 part to 1 part of wood creosote, 1 part to 2 parts of didecyl dimethyl ammonium chloride, 2 parts to 3 parts of p-toluenesulfonic acid, 0.2 part to 0.3 part of an ammonia solution, 0.4 part to 0.7 part of calcium propionate, 15 parts to 20 parts of polyving akohol, 6 parts to 8 parts of sericin, 0.08 part to 0.1 part of boric acid, 10 parts to 20 parts of methylbenzotriazole, 0.5 part to 1 part of triterpenoid saponin, 180 parts to 200 parts of deionized water and 0.2 part to 0.3 part of alcohol ester-12. Water soluble macromolecule polyvinyl alcohol is mixed with the sericin, and through boric acid modification, tensile strength and thermal stability of a blend membrane can be improved; and corrosion inhibition alkali liquor and a sericin emulsion are blended, and an emulsion with the methylbenzotriazole as a main material is added, so that compatibility among materials can be promoted, the membrane adsorbed on a metal surface is evener and more stable, metal materials are protected against corrosion of air and harmful media in water, and the better corrosion inhibition effect is achieved.

Description

A kind of silk gum emulsification metal conditioner

Technical field

The present invention relates generally to metal conditioner field, particularly relates to a kind of silk gum emulsification metal conditioner.

Background technology

Metal conditioner refers to the general name of chemical agent metallic surface being carried out to various process.Metal finishing includes oil removing, rust cleaning, phosphatization, the substrate pretreatment such as antirust, for metal coating techniques, metal protection technology are prepared, the use of substrate pretreatment quality to after this coating preparation and metal has a great impact, water soluble anti-rust agent wherein then may be dissolved in water and forms the aqueous solution, and metal can prevent rust corrosion after this aqueous solution process.Their rust inhibition can be divided three classes.

1. metal and rust-preventive agent generate the insoluble and sull of densification, thus prevent the anode dissolution of metal or promote the passivation of metal, thus suppressing corrosion of metal.This kind of rust-preventive agent is also called passivator, as Sodium Nitrite, potassium bichromate etc.In use, enough consumptions should be ensured.When using quantity not sufficient, can not form complete sull, on not covered very little metallic surface, corrosion electric current density increases, and easily causes severe local corrosion.2. metal and rust-preventive agent generate the salt of indissoluble, thus metal and corrosive medium are isolated, and avoid corrosion.Such as: the phosphoric acid salt had can generate insoluble phosphoric acid molysite with iron effect; Some silicate energy and iron, aluminium effect generate insoluble silicate etc.3. metal and rust-preventive agent generate the complex compound of insoluble, cover metallic surface and protect metal to avoid corrosion.Such as: benzotriazole and copper can generate inner complex Cu (C6H4N3) 2, be both water insolublely also insoluble to oil, thus can protect the surface of copper.

Summary of the invention

The object of the invention is just to provide a kind of silk gum emulsification metal conditioner.

The present invention is achieved by the following technical solutions:

A kind of silk gum emulsification metal conditioner, it is made up of the raw material of following weight parts:

Paregal O-20 0.5-1, sal enixum 0.4-1, wood creosote 0.7-1, double-track suspended self-propelled conveyor 1-2, tosic acid 2-3, a hydration ammonia 0.2-0.3, calcium propionate 0.4-0.7, polyvinyl alcohol 15-20, silk gum 6-8, boric acid 0.08-0.1, methyl benzotriazazole 10-20, triterpenoid saponin 0.5-1, deionized water 180-200, Lauryl Alcohol ester 0.2-0.3.

A preparation method for silk gum emulsification metal conditioner, comprises the following steps:

(1) by triterpenoid saponin, silk gum, calcium propionate mixing, add the 60-70% of above-mentioned deionized water weight, after stirring, add polyvinyl alcohol, boric acid, insulated and stirred 50-60 minute at 65-70 DEG C, obtain silk gum emulsion;

(2) methyl benzotriazazole is joined in its weight 3-5 sig water doubly, be heated to 60-70 DEG C, obtain inhibition alkali lye;

(3) Lauryl Alcohol ester, paregal O-20 are mixed to join in remaining deionized water, add double-track suspended self-propelled conveyor after stirring, insulated and stirred 4-10 minute at 50-60 DEG C, obtains emulsion;

(4) by above-mentioned inhibition alkali lye, the mixing of silk gum emulsion, add emulsion after stirring, 600-1000 rev/min of dispersed with stirring 7-10 minute, obtains inhibition emulsion;

(5) mixed with each raw material of residue by above-mentioned inhibition emulsion, 700-800 rev/min of dispersed with stirring 20-30 minute, obtains described metal conditioner.

A kind of silk gum emulsification metal conditioner, described sig water is the sodium hydroxide of 0.1mol/l or the aqueous sodium carbonate of 0.1mol/l.

Advantage of the present invention is:

Water-soluble polymer polyvinyl alcohol mixes with silk gum by the present invention; by boric acid modified tensile strength and the thermostability that can improve blend film; by inhibition alkali lye, silk gum emulsion blending; adding with methyl benzotriazazole is the emulsion of major ingredient; the consistency of each storeroom can be promoted; and making the film being adsorbed on metallic surface more uniform and stable, protection metallic substance, from the corrosion of hazardous medium in air and water, plays better corrosion mitigating effect.

Embodiment

Embodiment 1:

A kind of silk gum emulsification metal conditioner, it is made up of the raw material of following weight parts:

Paregal O-20 0.5, sal enixum 0.4, wood creosote 0.7, double-track suspended self-propelled conveyor 2, tosic acid 2, hydration ammonia 0.2, calcium propionate 0.7, polyvinyl alcohol 20, silk gum 8, boric acid 0.08, methyl benzotriazazole 20, triterpenoid saponin 0.5, deionized water 200, Lauryl Alcohol ester 0.2.

A preparation method for silk gum emulsification metal conditioner, comprises the following steps:

(1) by triterpenoid saponin, silk gum, calcium propionate mixing, add 70% of above-mentioned deionized water weight, add polyvinyl alcohol, boric acid after stirring, at 65 DEG C, insulated and stirred 50 minutes, obtains silk gum emulsion;

(2) methyl benzotriazazole is joined in the sig water of its weight 3 times, be heated to 70 DEG C, obtain inhibition alkali lye;

(3) Lauryl Alcohol ester, paregal O-20 are mixed to join in remaining deionized water, add double-track suspended self-propelled conveyor after stirring, at 60 DEG C, insulated and stirred 10 minutes, obtains emulsion;

(4) by above-mentioned inhibition alkali lye, the mixing of silk gum emulsion, add emulsion after stirring, 1000 revs/min of dispersed with stirring 10 minutes, obtain inhibition emulsion;

(5) mixed with each raw material of residue by above-mentioned inhibition emulsion, 700 revs/min of dispersed with stirring 30 minutes, obtain described metal conditioner.

A kind of silk gum emulsification metal conditioner, described sig water is the aqueous sodium carbonate of 0.1mol/l.

Performance test:

Performance test:

Get that surface treatment agent of the present invention processes aluminium alloy respectively, copper-iron alloy sheet material is tested, the specification of two kinds of sheet materials is 80mm × 100mm × 4mm, by this sheet material lateral dissection, carry out spray test, agents useful for same to be concentration be 5% sodium chloride solution, test period 300 hours, measure the bubbling width formed in line of cut side, result bubbling width is 0;

Salt tolerance:

It is in the sodium chloride solution of 5% that the above-mentioned two kinds of sheet materials processed respectively are immersed in concentration, and soak 300 hours, material surface is substantially unchanged, soaks 300 hours, occurs without rust staining.

Claims (3)

1. a silk gum emulsification metal conditioner, is characterized in that what it was made up of the raw material of following weight parts:

Paregal O-20 0.5-1, sal enixum 0.4-1, wood creosote 0.7-1, double-track suspended self-propelled conveyor 1-2, tosic acid 2-3, a hydration ammonia 0.2-0.3, calcium propionate 0.4-0.7, polyvinyl alcohol 15-20, silk gum 6-8, boric acid 0.08-0.1, methyl benzotriazazole 10-20, triterpenoid saponin 0.5-1, deionized water 180-200, Lauryl Alcohol ester 0.2-0.3.

2. a preparation method for silk gum emulsification metal conditioner as claimed in claim 1, is characterized in that comprising the following steps:

(1) by triterpenoid saponin, silk gum, calcium propionate mixing, add the 60-70% of above-mentioned deionized water weight, after stirring, add polyvinyl alcohol, boric acid, insulated and stirred 50-60 minute at 65-70 DEG C, obtain silk gum emulsion;

(2) methyl benzotriazazole is joined in its weight 3-5 sig water doubly, be heated to 60-70 DEG C, obtain inhibition alkali lye;

(3) Lauryl Alcohol ester, paregal O-20 are mixed to join in remaining deionized water, add double-track suspended self-propelled conveyor after stirring, insulated and stirred 4-10 minute at 50-60 DEG C, obtains emulsion;

(4) by above-mentioned inhibition alkali lye, the mixing of silk gum emulsion, add emulsion after stirring, 600-1000 rev/min of dispersed with stirring 7-10 minute, obtains inhibition emulsion;

(5) mixed with each raw material of residue by above-mentioned inhibition emulsion, 700-800 rev/min of dispersed with stirring 20-30 minute, obtains described metal conditioner.

3. a kind of silk gum emulsification metal conditioner according to claim 1, is characterized in that described sig water is the sodium hydroxide of 0.1mol/l or the aqueous sodium carbonate of 0.1mol/l.