CN105177563A

CN105177563A - Preparation method for environment-friendly metal anticorrosion agent and using method of environment-friendly metal anticorrosion agent

Info

Publication number: CN105177563A
Application number: CN201510510220.3A
Authority: CN
Inventors: 孙爱琴
Original assignee: Hefei Tenver Precision Casting Co Ltd
Current assignee: Hefei Tenver Precision Casting Co Ltd
Priority date: 2015-08-19
Filing date: 2015-08-19
Publication date: 2015-12-23

Abstract

The invention discloses a preparation method for an environment-friendly metal anticorrosion agent and a using method of the environment-friendly metal anticorrosion agent. The anticorrosion agent is composed of deionized water, ethyl alcohol, polyvinyl butyral, titanium dichloride, cerium acetate, sodium tripolyphosphate and lauryl sodium sulfate. According to the preparation method for the environment-friendly metal anticorrosion agent and the using method of the environment-friendly metal anticorrosion agent, the operating process is simple; the anticorrosion agent is environmentally friendly and non-toxic; the cost is low. The sodium tripolyphosphate is added to the polyvinyl butyral, the titanium dichloride and the cerium acetate, and thus the stability, abrasion resistance and compactness of sol are improved. Through the addition of the lauryl sodium sulfate, the sol is free of delamination and convenient to use. The sol is transparent and colorless, so that the color presentation of a substrate is not influenced. A coating of nano titanium dichloride and cerium oxide is combined with the metal substrate in a chemical bonding mode, and drying is conducted through low-temperature heat treatment, so that the obtained coating is good in stability, resistant to abrasion, not liable to be fractured and to fall off, and long in service life. No sewage is produced in the whole anticorrosion process, so that the anticorrosion agent is capable of protecting the environment and reducing the cost of sewage treatment.

Description

A kind of preparation of environment protection metal sanitas and using method thereof

Technical field

The present invention relates to a kind of preparation and using method thereof of environment protection metal sanitas, belong to metal rust preventing technical field.

Background technology

Along with the development of society, metallic substance is more and more important in social production with life, is applied to a lot of field, but the reason that Yin Qiyi is corroded, and shortens in its work-ing life or use is in some aspects restricted.Metal is under natural storage condition, because environment and other factors make the easy corrosion of parts, thus reduce or lose use value, cause security incident and financial loss, the direct economic loss number that China causes because of corrosion of metal is every year huge.

Industrial antirust paint was maximum with epoxy zinc-rich paint in recent years, because the density of metal zinc is larger, in order to not make zinc powder settling or the settling velocity of the zinc powder that slows down, need in paint, add a certain amount of anti-sedimentation agent, the viscosity of paint also increases thereupon, will select the resin (E44) of small-molecular-weight when selecting polyamide resin as much as possible; In order to can brushing property be met during construction, a large amount of solvents to be added in paint, during construction solvent serious harm workman healthy, to paint in drying process contaminate environment in solvent evaporates to air, solvent make improve construction cost; After small-molecular-weight resin solidification, the fragility of paint film is large, metal heat-expansion shrinkage system greatly when temperature variation paint film easily chap or come off.

Sol-gel method is exactly make presoma with the compound containing high chemical active ingredient, by these raw material Homogeneous phase mixing under liquid phase, and be hydrolyzed, condensation chemical reaction, form stable vitreosol system in the solution, colloidal sol is slowly polymerized through between ageing micelle, form the gel of three-dimensional space network structure, between gel network, be filled with the solvent lost flowability, form gel.Gel prepares the material of molecule and even nanometer substructure through super-dry, sintering curing.Because simple to operate, environmental friendliness, the feature such as with low cost are widely used.

Summary of the invention

In order to make up the defect of prior art, the object of this invention is to provide a kind of preparation and using method thereof of environment protection metal sanitas.

A kind of environment protection metal sanitas, is made up of the raw material of following amount of substance per-cent:

Deionized water 40% ~ 45%, ethanol 3% ~ 6%, polyvinyl butyral acetal 24% ~ 26%, titanium chloride 20% ~ 25%, cerous acetate 4% ~ 6%, tripoly phosphate sodium STPP 2% ~ 5%, sodium lauryl sulphate 2% ~ 5%.

The preparation of environment protection metal sanitas and a using method thereof, comprise the following steps:

(1) by ethanol and deionized water mixing, add tripoly phosphate sodium STPP and sodium lauryl sulphate, stir, adjust pH to 5.5 ~ 7.5 with 5mol/L oxalic acid solution;

(2) add polyvinyl butyral acetal, titanium chloride and cerous acetate, adjust the temperature to 60 ~ 70 DEG C, keep 30 ~ 40 minutes, room temperature is placed 1 ~ 2 hour, obtains colloidal sol;

(3) metal base ultrasonic method is cleaned up, dry;

(4) utilize dipping-pulling method, carry out film with colloidal sol to metal base, pull rate is 2.2 ~ 2.4mm/s, and coating thickness is 2 ~ 2.5 μm;

(5) by the metal base after film in the baking oven of 250 ~ 300 DEG C, dry 5 ~ 6 hours, obtain nano titanium oxide and cerium oxide.

Advantage of the present invention is: the preparation of a kind of environment protection metal sanitas provided by the invention and using method thereof, and operating process is simple, and material environment friendly is nontoxic, and price is low; Utilize polyvinyl butyral acetal, titanium chloride and cerous acetate, add tripoly phosphate sodium STPP, improve the stability of colloidal sol, wear resistance and compactness; Adding of sodium lauryl sulphate, make colloidal sol even, not stratified, easy to use; Colloidal sol clear, colorless, what do not affect substrate presents color; Nano titanium oxide and cerium oxide and metal base are with chemical bonds, and utilize low-temperature heat treatment to carry out drying, the coating stability obtained is good, wear-resisting, be full of cracks not easily occurs and comes off, long service life; Whole preservation process does not produce sewage, is conducive to the protection of environment, decreases the cost of waste water control.

Embodiment

With specific embodiment, the present invention is described below.

Embodiment 1

Deionized water 42%, ethanol 4%, polyvinyl butyral acetal 25%, titanium chloride 20%, cerous acetate 5%, tripoly phosphate sodium STPP 2%, sodium lauryl sulphate 2%.

(1) by ethanol and deionized water mixing, add tripoly phosphate sodium STPP and sodium lauryl sulphate, stir, adjust pH to 5.5 with 5mol/L oxalic acid solution;

(2) add polyvinyl butyral acetal, titanium chloride and cerous acetate, adjust the temperature to 60 DEG C, keep 30 minutes, room temperature places 1 hour, obtains colloidal sol;

(3) metal base ultrasonic method is cleaned up, dry;

(4) utilize dipping-pulling method, carry out film with colloidal sol to metal base, pull rate is 2.2mm/s, and coating thickness is 2 μm;

(5) by the metal base after film in the baking oven of 250 DEG C, dry 5 hours, obtain nano titanium oxide and cerium oxide.

Embodiment 2

Deionized water 40%, ethanol 4%, polyvinyl butyral acetal 25%, titanium chloride 20%, cerous acetate 5%, tripoly phosphate sodium STPP 3%, sodium lauryl sulphate 3%.

(1) by ethanol and deionized water mixing, add tripoly phosphate sodium STPP and sodium lauryl sulphate, stir, adjust pH to 6 with 5mol/L oxalic acid solution;

(2) add polyvinyl butyral acetal, titanium chloride and cerous acetate, adjust the temperature to 65 DEG C, keep 35 minutes, room temperature places 1.5 hours, obtains colloidal sol;

(3) metal base ultrasonic method is cleaned up, dry;

(4) utilize dipping-pulling method, carry out film with colloidal sol to metal base, pull rate is 2.3mm/s, and coating thickness is 2 ~ 2.5 μm;

(5) by the metal base after film in the baking oven of 280 DEG C, dry 5.5 hours, obtain nano titanium oxide and cerium oxide.

Embodiment 3

Deionized water 41%, ethanol 3%, polyvinyl butyral acetal 25%, titanium chloride 20%, cerous acetate 5%, tripoly phosphate sodium STPP 3%, sodium lauryl sulphate 3%.

(1) by ethanol and deionized water mixing, add tripoly phosphate sodium STPP and sodium lauryl sulphate, stir, adjust pH to 7.5 with 5mol/L oxalic acid solution;

(2) add polyvinyl butyral acetal, titanium chloride and cerous acetate, adjust the temperature to 70 DEG C, keep 40 minutes, room temperature places 2 hours, obtains colloidal sol;

(3) metal base ultrasonic method is cleaned up, dry;

(4) utilize dipping-pulling method, carry out film with colloidal sol to metal base, pull rate is 2.4mm/s, and coating thickness is 2.5 μm;

(5) by the metal base after film in the baking oven of 300 DEG C, dry 6 hours, obtain nano titanium oxide and cerium oxide.

The present embodiment and commercially available conventional rust inhibitors are carried out contrast experiment, and wherein property indices measures respectively as follows:

High/low temperature stability test: carry out according to JB/T4323.2-1999; Damp and hot rust prevention test: the method for one-level grey cast iron test piece embodiment carry out anticorrosion after, test piece is put on the dividing plate of moisture eliminator (500 ~ 1000ml distilled water is injected in bottom), adds a cover constant temperature under being placed on 35 DEG C ± 2 DEG C conditions and place, observe antirust time; Indoor hanging test: the method for one-level grey cast iron test piece embodiment carry out anticorrosion after, hang up in indoor, observe strip corrosion situation; Seal rust prevention test up for safekeeping: the method for one-level grey cast iron test piece embodiment carry out anticorrosion after, transparent sealed plastic bag is put in test piece, the surface appearance of good seal routine observation test piece; Table 1 is the rust-proof effect contrast of embodiment metal and commercially available conventional anti-rust metal.

Table 1: the rust-proof effect contrast of embodiment metal and commercially available anti-rust metal

Project	Embodiment 1	Embodiment 2	Embodiment 3	Commercially available routine
					High/low temperature stability	Stable	Stable	Stable	Stable
Damp and hot antirust/sky	16	18	21	9
					Indoor lacing film/sky	7~8	7~8	7~8	3~4
Seal antirust/sky up for safekeeping	12~13	12~13	12~13	6~10

As can be seen from the data of table 1, preparation and the using method thereof of a kind of environment protection metal sanitas provided by the invention can make the antirust finer and close of metal, and good stability, antirust time is longer.

Claims

1. an environment protection metal sanitas, is characterized in that, is made up of the raw material of following amount of substance per-cent:

2. the preparation of a kind of environment protection metal sanitas as claimed in claim 1 and using method thereof, is characterized in that, comprise the following steps:

(3) metal base ultrasonic method is cleaned up, dry;