CN1069504A

CN1069504A - The production method of water soluble internal use nitrocellulose lacquer without benzene poison

Info

Publication number: CN1069504A
Application number: CN 92105305
Authority: CN
Inventors: 张展洪
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-16
Filing date: 1992-07-16
Publication date: 1993-03-03

Abstract

The invention discloses a kind of is primary solvent with water, replaces making the method that solvent is produced the without benzene toxicity pyroxylin(e)finish with toluene and dimethylbenzene.It has effected a radical cure the environmental pollution in plant produced and the construction process, has ensured the healthy of direct labor and construction workman, greatly reduces production cost simultaneously, also can add common tap water during use arbitrarily and make thinner.

Description

The production method of water soluble internal use nitrocellulose lacquer without benzene poison

The present invention relates to a kind of coating, particularly a kind of production method of the internal use nitrocellulose lacquer with water as solvent.

Pyroxylin(e)finish with its fast doing of having, paint film is bright, the tough and tensile competent characteristic property of film forming and extensively be applied to the Lacquer finish of bamboo and wood utensil, the finishing that hotel, market, automobile, train are indoor etc. and decorating.Yet the existing production technology of pyroxylin(e)finish all is to adopt toluene and dimethylbenzene to make solvent, but toluene and dimethylbenzene are a kind of inflammable, volatile noxious solvents, nerve system of human body is produced anesthesia and hormesis, and be a kind of carcinogenic substance.Therefore, the production of pyroxylin(e)finish and workyard mostly are that environmental pollution is serious, the place that workers ' health seriously is on the hazard, and this is a long-term unresolved problem.Although factory can drop into a large amount of fund purchasing equipments, the environmental protection problem in solve producing for construction with use the place, then can't solve it to the pollution of environment with to the harm of construction workers ' health.

The objective of the invention is to use water as solvent and produce pyroxylin(e)finish, get rid of toluene and dimethylbenzene, fundamentally solve the environmental pollution in pyroxylin(e)finish production and the construction and ensure the healthy problem of workman, and reduce production cost of products in a large number.

The present invention realizes in such a way: in having the reactor of agitator, add vinyl acetic monomer, N-BUTYL ACETATE and butanols respectively, the back continuation that stirs slowly adds nitro-cotton while stirring, treat to add Synolac and softening agent again after nitro-cotton fully dissolves, continue to be stirred to evenly till.In the basin of another belt stirrer, add quantitative deionized water, start agitator, slowly add quantitative emulsifying agent and dispersion agent, make the milky aqueous solution of its fully emulsified one-tenth, aqueous emulsion is slowly added in the mixed solution of blended nitro-cotton and Synolac, and stir, after after high speed dispersor or shredder grind, after filtration use zapon varnish in the milky water-soluble without benzene toxicity.According to the needs of market or use, in above-mentioned varnish, add color dye, through stirring, grind, filtering, can obtain the water soluble internal use nitrocellulose lacquer without benzene poison of different colours.

Below in conjunction with accompanying drawing enforcement of the present invention is described in further detail:

Fig. 1 is a process flow sheet of the present invention.

As shown in Figure 1, four steps of synthetic branch of water soluble internal use nitrocellulose lacquer without benzene poison of the present invention finish, and various components all adopt percentage by weight to feed intake in the production:

1, the butanols of getting the ethyl acetate of butyl acetate, 4%-15% of 6%-20% and 5%-10% adds in the reaction pot with agitator and stirs, it is fully mixed, the nitrocotton that in batches adds lentamente then 20%-30%, continue to stir 6-8 hour, nitrocotton all is dissolved to infuse clearly transparent, last, adds 10%-15% soybean alkyd and 2%-3% plasticizer and continue to stir and evenly mix rear for subsequent use.

2, the deionized water of 40%-50% is added in the basin of belt stirrer, start agitator, the emulsifying agent and 1% dispersant that slowly add 3%-6%, such as: the congener such as polyoxy ethyl phenylate and neopelex, OP-10 and pull open powder, make its emulsification, extremely whole tank solution becomes till the milky aqueous solution.

3, start the agitator in the reactor of the nitro-cotton that mixed and Synolac mixed solution, and slowly add the good aqueous solution of emulsification, make its thorough mixing after, disperse or grind through high speed dispersor through colloid mill, use zapon varnish in the milky thick water-soluble without benzene toxicity.

4, in above-mentioned made varnish, add the 10%-15% color dye, after shredder grinds and filters, promptly can be made into the interior nitro colored paint of using of water-soluble without benzene toxicity of various different colours.

Principal feature of the present invention be with water as main solvent, replaced big and serious toluene and the dimethylbenzene of environmental pollution, thereby ensured people health human toxicity, promote the well-being of mankind.Simultaneously, owing to, greatly reduce production cost of products and exempted factory to handling the substantial contribution of waste water, the required input of waste gas with water as solvent.Can add common tap water when another characteristics of this product are to use arbitrarily and make thinner.

Embodiment 1: adding with the weight percent in having the reactor of agitator is 9% N-BUTYL ACETATE, 10% ester acetoacetic ester and 5% butanols of Units of Account, mix the back and add 20% nitro-cotton, continue to stir 6-8 hour, fully dissolve the back to nitro-cotton and add 10% soybean alkyd and 2% dibutyl phthalate softening agent, the back of continuing to stir is standby.Have at another and to add 42% deionized water in basin of agitator, in stirring, slowly add 1% polyoxy ethyl phenylate and 1% Sodium dodecylbenzene sulfonate, 0.5%OP-10,0.5% and draw back powder, make it be emulsified into the solution of white.Emulsified soln is slowly joined in the mixed solution of nitro-cotton and Synolac, stir after high speed dispersor disperse the back use zapon varnish in the water-soluble without benzene toxicity, in water-soluble without benzene toxicity, use the Rutile type Titanium Dioxide of adding 10% in the zapon varnish, grind through shredder, and after filtering milky water soluble internal use nitrocellulose lacquer without benzene poison.

Embodiment 2: method is identical with embodiment 1 with step, composition of raw materials changes into: 6% N-BUTYL ACETATE, 4% vinyl acetic monomer, 5% butanols, 20% nitro-cotton, 10% Synolac, 50% deionized water, 1% polyoxy ethyl phenylate, 0.8% Sodium dodecylbenzene sulfonate, 0.8%OP-10,0.5% draw back powder, 15% pigment of all kinds, promptly can be made into versicolor water soluble internal use nitrocellulose lacquer without benzene poison.

Claims

1, a kind of water soluble internal use nitrocellulose lacquer without benzene poison is characterized in that formula constituent (with weight percent) is made up of 6%-20% N-BUTYL ACETATE, 4%-15% vinyl acetic monomer, 5%-10% butanols, 20%-30% nitro-cotton, 10%-25% Synolac, 2%-3% softening agent, 40%-50% deionized water, 3%-6% emulsifying agent, 1% dispersion agent and 10%-15% pigment.

2, water soluble internal use nitrocellulose lacquer without benzene poison according to claim 1, it is characterized in that formula constituent (with weight percent) by 9% N-BUTYL ACETATE, 10% vinyl acetic monomer, 5% butanols, 20% nitro-cotton, 10% Synolac, 2% dibutyl phthalate, 42% deionized water, 1% polyoxy ethyl phenylate and 1% Sodium dodecylbenzene sulfonate, 0.5%OP-10,0.5% draw back powder, 10% Rutile type Titanium Dioxide is formed.