CN104694934A

CN104694934A - Preparation method of biodegradable anticorrosion metal film

Info

Publication number: CN104694934A
Application number: CN201310653916.2A
Authority: CN
Inventors: 张文良
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-06
Filing date: 2013-12-06
Publication date: 2015-06-10

Abstract

The invention relates to a preparation method of a biodegradable volatile anticorrosion metal film for preventing metal corrosion and especially relates to a preparation method of a volatile anti-rusting solution for forming a gel insoluble protective film by metal electrons on the metal surface and an anticorrosion compound and realizing rusting inhibition. The preparation method comprises the following steps of putting purified water into a stirrer, putting potassium silicate and sodium metasilicate and sodium benzoate as additives into the stirrer, carrying out stirring at a temperature of 40 DEG C until the suspending liquid is completely transparent, carrying out cooling to a room temperature so that a mixture A is obtained, putting polyethylene glycol, propylene glycol and benzotriazole into the stirrer, carrying out stirring at a room temperature to obtain a uniform mixture B, adding the mixture A solution into the mixture B solution according to a use amount ratio of 1: 1, adding triethanolamine into the mixed solution, and carrying out a stirring reaction process at a normal temperature to obtain the anti-rusting liquid. The preparation method has simple and easily controllable processes, high yield and good quality. The product can replace the existing anti-rusting liquid and produce active effects.

Description

A kind of preparation method of biological degradability corrosion-resistant metal film

Technical field:

The invention belongs to antifouling technical field of anticorrosion, relate to a kind of preparation method preventing the degradable gasification corrosion prevention film of metallic corrosion.

Background technology:

Along with industry and expanding economy, utilize the various metal various products that particularly ferrous metal is produced to obtain and use widely, meanwhile, the metal loss produced because of various corrosion also gets more and more.The various occasions of weld are carried out after particularly doing Liquid transfer or the manufacture of pump series products after the welding such as underground pipeline, the antirust product of liquid type used at present otherwise usage quantity too many, after using, the extent of corrosion of product sharply rises, there is a lot of side effect, and existing rust protection liquid on the market all contains heavy metal or the nitrite etc. such as the chromium medicine harmful to environment and human body, easily causes serious problem of environmental pollution.In addition, people are being devoted to research and develop the various technology preventing metal rusting, some is quite ripe, the principles of chemistry are particularly utilized to prevent the corrosion technology of seabed or underground metalliferous from also obtaining significant results, but need further development for the high-concentration gasified rust-proofing liquor of various metal and technology of preparing thereof, have not yet to see desired result.

Summary of the invention:

The object of the invention is to the problem overcome existing for prior art, produce not only economy but also the degradable formula high-concentration gasified rust-proofing liquor of environmental protection with the New Type Material pharmaceutical chemicals of environmental protection through rational scientific matching and modulation.

To achieve these goals, the present invention utilizes the non-publicly-owned electron pair of New Type Material to be combined the principle forming soluble chelating thing with metal ion, is first mixed with batch mixing A, then is mixed with mixed material B, be then mixed in proportion and be prepared into product.In order to increase the rustless property of product to metal, in solution, add New Type Material potassium silicate, and mix with Sodium Benzoate, phenylpropyl alcohol triazole, propylene glycol, trolamine, polyoxyethylene glycol, make the product of preparation have very strong metal rust preventing performance.

Realization of the present invention, first puts into pure water, then puts into potassium silicate and additive Starso, Sodium Benzoate, under 40 DEG C of conditions, stir 30-90 minute in agitator, until suspension liquid is completely transparent, and then cool to room temperature, obtained batch mixing A; Stir at ambient temperature put into polyoxyethylene glycol, propylene glycol, phenylpropyl alcohol triazole again in agitator after, obtained mixed material B; Then in mixed material B solution, put into equivalent batch mixing solution A, then put into trolamine, stir 30-50 minute under normal temperature with 30rpm/min speed, reaction generates concentrated gasified anti-rust liquid.

The weight percent content that the present invention prepares batch mixing solution A component materials is pure water 95.40%, potassium silicate 0.15%, Starso 0.05%, Sodium Benzoate 4.4%; The material composition weight percent content of mixed material B solution is polyoxyethylene glycol 14.26%, propylene glycol 85.57%, phenylpropyl alcohol triazole 0.17%; The mixed weight proportioning of batch mixing A and mixed material B is 1:1.

The present invention, owing to the addition of potassium silicate and additive Starso, its stable chemical performance, can dilute at high proportion and therefore belong to economy product, and its product also can not carry out gasified rust-proofing for a long time containing under the physical environment such as chromium system or nitrite; Compared with prior art, processing condition are simple and easy to control, and it is high that product goes out rate, and quality is good, and product can replace existing rust protection liquid and produce positively effect.

Embodiment:

Method that the invention is further illustrated by the following examples and effect thereof.

Embodiment 1:

The preparation of the present embodiment batch mixing A: the pure water putting into 65kg in the agitator of 300 liters, then put into potassium silicate 0.1kg, additive Starso 0.03kg, Sodium Benzoate 3kg, stirs 60 minutes, until suspension liquid is completely transparent under 40 DEG C of conditions, then cool to room temperature, obtained batch mixing A.

The preparation of the present embodiment mixed material B: put into polyoxyethylene glycol 20kg in the agitator of 300 liters, propylene glycol 120kg, phenylpropyl alcohol triazole 0.24kg, stirs at ambient temperature, obtained mixed material B.

The present embodiment mixes batch mixing A and mixed material B: in mixed material B solution, put into equivalent batch mixing solution A, then put into trolamine 2kg, stir 40 minutes under normal temperature with 30rpm/min speed, and reaction generates 210kg and concentrates gasified anti-rust liquid.Applicability test is carried out as follows with obtained rust protection liquid:

Test conditions: 35 DEG C, aqueous solution thermostatic bath is tested, test period: 30 days

Test piece: length is after the metal testing plate aluminium cloth of 3cm is carefully smeared, then cleans with Virahol.

Test method: 1) in beaker by rust protection liquid: water=1:100 weight ratio is diluted to rust inhibiting solution;

2) test piece is put into 1) solution;

3) temperature of thermostatic bath is set as 35 DEG C, and beaker is put into thermostatic bath, and observation per hour is got rusty situation.Convert different Dilution ratio respectively again, test-results is as table 1.

Table 1: the get rusty situation of product of the present invention under different Dilution ratio condition

Claims

1. the preparation method of a biological degradability corrosion-resistant metal film, it is characterized in that first in agitator, putting into pure water, put into potassium silicate and additive Starso, Sodium Benzoate again, 30-90 minute is stirred under 40 DEG C of conditions, until suspension liquid is completely transparent, then cool to room temperature, obtained batch mixing A; Stir at ambient temperature put into polyoxyethylene glycol, propylene glycol, phenylpropyl alcohol triazole again in agitator after, obtained mixed material B; Then in mixed material B solution, put into equivalent batch mixing solution A, then put into trolamine, stir 30-50 minute under normal temperature with 30rpm/min speed, reaction generates concentrated gasified anti-rust liquid.

2. the preparation method of biological degradability corrosion-resistant metal film according to claim 1, is characterized in that the weight percent content of batch mixing solution A material composition is pure water 95.40%, potassium silicate 0.15%, Starso 0.05%, Sodium Benzoate 4.4%; The material composition weight percent content of mixed material B solution is polyoxyethylene glycol 14.26%, propylene glycol 85.57%, phenylpropyl alcohol triazole 0.17%; The mixed weight proportioning of batch mixing A and mixed material B is 1:1.