CN1113926A

CN1113926A - highly efficient paint removing agent

Info

Publication number: CN1113926A
Application number: CN 94106988
Authority: CN
Inventors: 高勤卫; 王国霞; 袁传勋; 钱斌
Original assignee: Inst Of Biology And Electromechanics Engineering Anhui Polytechnic College (cn
Current assignee: Inst Of Biology And Electromechanics Engineering Anhui Polytechnic College (cn
Priority date: 1994-06-07
Filing date: 1994-06-07
Publication date: 1995-12-27

Abstract

The efficient paint remover is composed of mixed chlorohydrocarbon, acid, alcohol, ether, phenol, paraffin kerosene solution, thickener, surfactant and water. It is suitable for removing the paint of furniture, electric appliance, automobile and indoor wall and also can conduct the treatment of removing plastics. Said product can be used to remove paint either by soaking or brushing. Said product features quickly removing paint, paint removed within 1-15 min., efficient, the paint removing rate up to 90-100%, wide range applicable, no corrosion to the base material, not burning while contacting open fire and being a kind of safety, reliable and efficient paint remover.

Description

highly efficient paint removing agent

The present invention relates to a kind of efficient paint remover, belong to the chemical stripper technical field.

Many furniture, household electrical appliances or equipment unit have been used for a long time, need paint again, then need to remove paint before being coated with new lacquer.The removal methods of metal and wood surface paint film is a lot, and commonly used have baked wheaten cake, soda boiling and a mechanical treatment etc., and these method labor capacity are big, speed slow, the depainting rate is low, ground is destroyed cause dust pollution greatly and easily.In addition, old stripping method also is subjected to the restriction of member shape, and for example the paint film in corner and the pipe is difficult to remove.Various in recent years paint removers arise at the historic moment, and generally all belong to chemical stripper, can be divided into inorganic paint remover and organic paint remover two big classes again by its chemical ingredients.Inorganic paint remover mainly is made up of highly basic (as oxychlorination sodium) or strong acid (as nitric acid and sulfuric acid).Organic paint remover then is made up of multiple solvent and auxiliary agent, can be divided into two kinds of immersion type brush-on-types again by its using method.

Chinese patent 1035574A discloses a kind of immersion type chemical stripper, and it is made up of potassium bichromate (or sodium dichromate 99), the vitriol oil, NN-dimethyl formamide, methylene dichloride (or trichloromethane).The soak time of this chemical stripper is 10-30 minute.

Chinese patent 1082079A discloses a kind of quick aqueous chemical paint remover, and it is made up of institutes such as formic acid, ethanol, trichloromethane, Sodium dodecylbenzene sulfonate, Mono Chloro Acetic Acids, can remove metallic surface paint film and bike priming paint.

Above-mentioned these chemical strippers are verified all to be effective, inadequately extensively (be a kind of depainting only be applicable to remove several paint films), paint stripping rate are slow but still there is the depainting kind, and efficient is low, the paint remover consumption big, the shortcoming big and inflammable to ground corrodibility.

The objective of the invention is purport overcome prior art not enough, provide a kind of and can remove various paint films quickly and efficiently, and safety is fire-retardant, to the non-corrosive efficient paint remover of ground.

The object of the present invention is achieved like this:

A kind of efficient paint remover is formed by mixing hydrochloric ether, acids, alcohols, ethers, phenols, paraffin coal oil solution, thickening material, tensio-active agent and water, it is characterized in that:

Mix hydrochloric ether 30-80%(weight ratio)

Acids 2-8%

Alcohols 0-10%

Ethers 0-5%

Phenols 0-5%

Paraffin coal oil solution 2-6%

Thickening material 0-10%

Tensio-active agent 0-2%

Water 0-20%

Described mixing hydrochloric ether can be methylene dichloride, trichloromethane, ethylene dichloride, tetracol phenixin, hexachloroethane and vinylchlorid, and should select that wherein two or more mixes for use;

Described acids can be the organic acid of formic acid, acetate or oxalic acid, also can be nitric acid or vitriolic strong oxidizing property mineral acid;

Described alcohols can be ethanol, butanols, ethylene glycol or propylene glycol;

Described ethers can be glycol ether (as ether or a butyl ether), also can be propylene glycol;

Described phenols can be phenol, cresols or dihydroxy-benzene;

Described thickening material can be ethyl cellulose or plastic waste (as polyvinyl chloride, synthetic glass, polystyrene);

Described tensio-active agent can be an emulsifier op-10, peregal-O or alkyl sodium sulfonate.

In order to improve depainting efficient, mixing hydrochloric ether is good with 60-80%.

Above-mentioned each composition is dropped in the reactor by a certain percentage, in 40 ℃ of insulations 1 hour, be cooled to below 30 ℃, sealing is stored, and promptly becomes the efficient paint remover product.

Compared with the prior art, the present invention has following advantage:

(1) paint stripping rate is fast, paint film can be removed in 1-15 minute; (2) efficient height, the depainting rate reaches 90-100%; (3) wide accommodation, this product can remove various baking finish, self-drying paint and plastic-blasting material effectively; (4) ground is not had corrosion, no matter being that cabinet-wood or household electrical appliances are metal faced is not all corroded; (5) flame retardant properties is good, meets naked light and does not also burn.Therefore this product is a kind of safe and reliable efficient paint remover.

Embodiment 1

Get each composition by weight as follows: mix hydrochloric ether 78%, paraffin coal oil solution 3.5%, phenol 3.5%, organic acid 5%, alcohol 7% and mineral acid 3%, drop into above-mentioned each composition in the reactor according to the above ratio, in 40 ℃ of insulations 1 hour, being cooled to promptly became the soak type efficient paint remover below 30 ℃, through test, soaked 5 minutes at 25-30 ℃, can remove trolley part priming paint; Soaked 10 minutes, and can remove the trolley part finish paint; And only need soak 1 minute, can remove the wood furniture lacquer.

Embodiment 2

Get each composition by weight as follows: mix hydrochloric ether 66%, paraffin coal oil solution 6%, organic acid 4%, thickening material 2%, ether 5%, tensio-active agent 2%, phenol 5% and deionized water 10%, earlier thickening material is dissolved in the mixing hydrochloric ether during preparation, drops into according to the above ratio in the reactor with other composition then, promptly make the brush-on-type efficient paint remover by embodiment 1 described formality.Through test, under the room temperature this product being brushed on steel plate; Can remove polyurethane finish in 15 minutes, the depainting rate reaches 95%.

Embodiment 3

Get each composition by weight as follows: mix hydrochloric ether 30%, paraffin coal oil solution 6%, organic acid 6%, ether 6%, phenol 10%, alcohol 10%, tensio-active agent 2%, Yu Weishui drops into above-mentioned each components in certain proportion in the reactor, in 40 ℃ of insulations 1 hour, be cooled to below 30 ℃, promptly become the soak type efficient paint remover, through test, at soaking at room temperature timber or metal device, can remove paint film at 10-30 minute, the depainting rate reaches 95%.

Claims

1, a kind of efficient paint remover is formed by mixing hydrochloric ether, acids, alcohols, ethers, phenols, paraffin coal oil solution, thickening material, tensio-active agent and water, it is characterized in that:

Mix hydrochloric ether 30-80% (weight ratio)

Acids 2-8%

Alcohols 0-10%

Ethers 0-5%

Phenols 0-5%

Paraffin coal oil solution 2-6%

Thickening material 0-10%

Tensio-active agent 0-2%

Water 0-20%

A, described mixing hydrochloric ether can be methylene dichloride, trichloromethane, ethylene dichloride, tetracol phenixin, hexachloroethane and vinylchlorid, and should select that wherein two or more mixes for use;

B, described acids can be the organic acids of formic acid, acetate or oxalic acid, also can be nitric acid or vitriolic strong oxidizing property mineral acid;

C, described alcohols can be ethanol, butanols, ethylene glycol or propylene glycol;

D, described ethers can be glycol ether (as ether or butyl ether), also can be propylene glycols;

E, described phenols can be phenol, cresols or dihydroxy-benzene;

F, described thickening material can be ethyl cellulose or plastic waste (as polyvinyl chloride, synthetic glass, polystyrene);

G, described tensio-active agent can be emulsifier op-10s, peregal-O or sodium alkyl benzene sulfonate.

2, efficient paint remover according to claim 1 is characterized in that mixing hydrochloric ether with the 60-80%(weight ratio) for good.