CN1072705A

CN1072705A - Composite polystyrene high-efficency anticorrosive paint and manufacture method

Info

Publication number: CN1072705A
Application number: CN 91110808
Authority: CN
Inventors: 王巧生; 肖珩; 吴荫顺; 张荣良; 英广恕
Original assignee: Beijing Shijingshan Environmental Protection Coating Factory; University of Science and Technology Beijing USTB
Current assignee: Beijing Shijingshan Environmental Protection Coating Factory; University of Science and Technology Beijing USTB
Priority date: 1991-11-23
Filing date: 1991-11-23
Publication date: 1993-06-02
Anticipated expiration: 2006-11-23
Also published as: CN1035480C

Abstract

The invention belongs to the coating material and the manufacture method that contain polystyrene in the field of surface treatment, especially for the protective system of facilities such as steel and iron member, factory building, underground utilities.This coating mainly contains polystyrene, coal-tar pitch, N-BUTYL ACETATE, coumarone indene resin, through specific processing, after heating, fully mixing, not only has good antiseptic property, and can recycle waste old polystyrene foamed plastic effective and reasonablely, make the deposed polystyrene regeneration, become the desirable coating that prevents atmosphere, soil corrosion.

Description

Composite polystyrene high-efficency anticorrosive paint and manufacture method

The invention belongs to the coated material that contains polystyrene in the field of surface treatment, especially for the protective system of facilities such as steel and iron member, factory building, underground utilities.

Along with development and national economy, China is very fast based on the wrapping material development of polystyrene foamed plastics, annual production has reached the hundreds of thousands of ton, these materials are mainly used in the Shockproof packaging of household electrical appliance, instrument, instrument, and the snack food product box, and all are disposable uses, with after waste product cumulative, it is big not only to stack site area, and burning easily, is unfavorable for safety in production.If a large amount of dead meals is burnt, can cause topsoil, so the waste polystyrene foam big public hazards have been become.At present, more existing patent documentation reports, utilize waste old polystyrene foamed plastic through simple modification, can obtain varnish, exterior coating, sharp paint, waterproof paint etc., although these coating have certain preservative activity, but the paint film adhesion that has is bad, and antiseptic property is unsatisfactory in atmosphere, edatope.

The objective of the invention is to recycle waste polystyrene foamed plastics effective and reasonablely, make the deposed polystyrene regeneration make the coating that to prevent atmosphere, soil corrosion.

The step that realizes the object of the invention is:

1. prepare A liquid. waste old polystyrene foamed plastic is cleaned, and fragmentation is dissolved in propylene dichloride or the xylene solvent, presses the 30-34wt% dissolving, stirs simultaneously, and it is polystyrene that liquid is formed: solvent=(30-34): (70-76).

2. prepare B liquid.By weight percentage, the 50-70% coal-tar pitch is heated to fusing, asphalt temperature is 200-220 ℃, and slow cooling adds No. 200 industrial naptha 10-15% to 180-200 ℃, stir while being blended into, temperature is reduced to 130-140 ℃, adds propylene dichloride or dimethylbenzene 20-35%, and slow cooling is to 90-95 ℃, stir insulation, make the B liquid that contains the 50-70% coal-tar pitch.

3. preparation mixed solution.By weight percentage, add A liquid 40-48%, B liquid 10-6% adds acetate butyl 1-0.5% again, coumarone indene resin 1-0.5%, and iron oxide red 18-15%, talcum powder 18-20%, zinc yellow 8-3%, dibutylester 2-1% carries out thorough mixing at 40-60 ℃ and stirs.

4. the material that stirs is sent into shredder and ground dispersion 2-2.5 hour, a small amount of solvent that can add 2-6% is adjusted viscosity.

5. check fineness (≤80) and viscosity (80-150 second), qualified after, be packed as finished product.

The present invention possesses following advantage:

1. utilize used foamed plastics to be main film forming substance, cost own is low, has solved the difficult problem of city environmental pollution simultaneously.

2. this coating is single component, has overcome the quality problems that two-component coating causes in factors such as proportioning, curing.Bring great convenience particularly for site operation, operator.

3. this coating is that the priming paint finish paint is integrated, and is easy to use, simple to operate.

4. this coating is magma type heavy-duty coating, and one-pass film-forming is thick, and rate of drying is fast, is the desirable coating of atmosphere, underground utilities rot-resistant.

5. this coating is except that having general coating property, also has characteristics such as anti-aging, salt spray resistance, anti-microorganism etch.

Further specify implementation procedure of the present invention and characteristics below in conjunction with embodiment:

By above-mentioned manufacturing step preparation A liquid, polystyrene: solvent=32: 68.Preparation B liquid, 60%, No. 200 gasoline 14% of coal-tar pitch, propylene dichloride 26%.Get A liquid 44kg, B liquid 10kg, add acetate butyl 1kg, coumarone indene resin 1kg, iron oxide red 15kg, talcum powder 18kg, zinc yellow 5kg, dibutylester 2kg, carrying out thorough mixing at 45 ℃ stirs, the material that stirs is sent into shredder and is ground dispersion 2 hours, adds the 4kg solvent and adjusts viscosity.

Prove that through quality supervision and test this coating has following technical characterstic:

Claims

1, a kind of coating that utilizes the polystyrene plastic foam to make, coating especially for anti-atmosphere, soil corrosion, it is characterized in that coating composition (per-cent by weight) is, contain the A liquid 40-48% of 30-34% polystyrene, contain the B liquid 10-6% of 50-70% coal-tar pitch, acetate butyl 1-0.5%, coumarone indene resin 1-0.5%, iron oxide red 18-15%, talcum powder 18-20%, zinc yellow 8-3%, dibutylester 2-1%.

2, a kind of preparation method of coating according to claim 1 is characterized in that:

(1) waste old polystyrene foamed plastic is cleaned, fragmentation is by the 30-34%(weight percent) be dissolved in propylene dichloride or the dimethylbenzene, stir simultaneously and make A liquid;

(2) the 50-70% coal-tar pitch is heated to fusing, asphalt temperature is 200-220 ℃, slow cooling to 180 °-200 ℃ adds No. 200 industrial naptha 10-15%, stirs while being blended into, temperature is reduced to 130-140 ℃, add solvent propylene dichloride or dimethylbenzene, 20-35%, slow cooling to 90 °-95 ℃, stir insulation, make B liquid;

(3) mix A, B liquid, add acetate butyl, coumarone indene resin, iron oxide red, talcum powder, zinc yellow, dibutylester again, carry out thorough mixing at 40-60 ℃ and stir;

(4) grind dispersion 2-2.5 hour after the stirring, solubilizing agent is adjusted viscosity.