CN1048873A

CN1048873A - The production method of non-bezene acrylic acid resin baking finish and self-drying paint

Info

Publication number: CN1048873A
Application number: CN 90104213
Authority: CN
Inventors: 张展洪
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-05
Filing date: 1990-06-05
Publication date: 1991-01-30

Abstract

The invention discloses and a kind ofly replace toluene and dimethylbenzene to make the production method that solvent is produced the acrylate resin lacquer with butanols and N-BUTYL ACETATE, it has changed the environmental pollution in plant produced and the construction process greatly, has ensured the direct labor and the healthy of workman of constructing.

Description

The production method of non-bezene acrylic acid resin baking finish and self-drying paint

The present invention relates to a kind of production method of coating, particularly a kind of production method of non-bezene acrylic acid resin lacquer.

The acrylate resin lacquer is owing to have good guarantor's look, gloss retention energy, good color and luster, and good weathering resistance, shock-resistance, paint film adhesion is strong, snappiness is good, and have outstanding NBC protective performance (moisture-proof heat, salt fog, mould), thereby its product is widely used in the coating of the surface decoration of senior household electrical appliance and automobile, senior instrument etc.Since the sixties, because the development of petroleum industry makes the raw material sources of this product more extensive, cost descends significantly, and therefore, such paint has obtained development faster.But, when producing this class paint, at first want the acrylic ester synthesizing resin, and then the adding auxiliary material is modulated into thermoset or thermoplasticity paint.At present, the acrylic ester synthesizing resin all adopts solvent polymeric technology, need to add the toluene of gross weight 40% in the production process or the butanols of dimethylbenzene and 10% is made solvent, behind the modulation lacquering, owing to contain a large amount of toluene or dimethylbenzene in the paint, therefore, no matter in the use of the production process of resin or paint, the operator is in the environment that is full of toluene or dimethylbenzene steam, as everyone knows, benzene kind solvent is a kind of carcinogenic substance, and has nervus centralis and neuro anesthesia and hormesis, can cause acute and chronic poisoning, in this environment, work for a long time, healthy with the serious harm worker causes occupational illness, also causes the pollution to surrounding environment simultaneously.

The production method that the purpose of this invention is to provide a kind of non-bezene acrylic acid resin replaces toluene and dimethylbenzene to produce with other solvents, to solve environmental pollution and to ensure that the worker is healthy.

The present invention realizes by following mode: the present invention includes products production prescription and production technique two partly.

One, prescription:

1. non-bezene acrylic acid resin synthesizing formula (weight percent):

Methyl methacrylate 10-30%

Butyl acrylate 10-30%

Propylene glycol monoacrylate 5-10%

Vinylformic acid 1-5%

N-BUTYL ACETATE 20-30%

Butanols 20-30%

Benzoyl peroxide 0.3-1%

2. modulate non-bezene acrylic acid resin paint formula (weight percent):

Non-bezene acrylic acid resin (50%) 40-60%

Rutile type Titanium Dioxide 10-25%

Low degree of etherification melamine resin (60%) 8-20%

Oxytol acetate 3-8%

Butanols 3-8%

Pimelinketone 3-8%

Butyl glycol ether 3-8%

Two, production technique (as shown in Figure 1):

1. non-bezene acrylic acid resin polymerization technique:

A adds N-BUTYL ACETATE, butanols in the reactor, is warming up to 115 ℃ and opens stirring.

B, each component monomer and initiator are added header tank after stirring and dissolving under the normal pressure, evenly be added dropwise in the reactor then, temperature is controlled at 120 ℃ ± 2 ℃ and keep refluxed 2 hours, and the dropping time was controlled in 3 hours, keeps refluxing 2 hours at 120-125 ℃ after dripping off mix monomer, continue to heat to stir and keep refluxing 2 hours, and add 0.5% initiator (dissolving) with butanols, be cooled to 70 ℃ at last, solids content be 50% non-bezene acrylic acid resin.

2. the production technique of non-bezene acrylic acid resin lacquer:

Grinding in non-bezene acrylic acid resin (50%), titanium dioxide, oxytol acetate, butanols, pimelinketone, the butyl glycol ether adding high speed sand mill, and adding crosslinking and curing agent low degree of etherification melamine resin (60%) and pigment color matching, after the grinding after filtration, the packing, promptly become the non-bezene acrylic acid resin baking finish.If in system lacquer process, reduce the content of acrylate resin, be 20% as consumption, then can be made into the non-bezene acrylic acid resin self-drying paint.

The paint of producing with the present invention, protect look except that having, protect light and good weathering resistance, the shock-resistance, its maximum characteristics are to have got rid of the old technology that dimethylbenzene is made solvent in production process and the finished product, thereby changed the environmental pollution in plant produced and the construction process greatly, the investment that makes factory save a large amount of waste gas treatment equipments has ensured the direct labor and the healthy of workman of constructing.

Fig. 1 is a Production Flow Chart synoptic diagram of the present invention.

Embodiment:

A, non-bezene acrylic acid resin synthesizing formula (weight percent):

Methyl methacrylate 20%

Butyl acrylate 20%

Propylene glycol monoacrylate 7%

N-BUTYL ACETATE 25%

Butanols 25%

Benzoyl peroxide 0.3%

B, modulation non-bezene acrylic acid resin paint formula (weight percent):

Acrylate resin (50%) 50%

Rutile type Titanium Dioxide 20%

Low degree of etherification melamine resin (60%) 10%

Oxytol acetate 5%

Butanols 5%

Pimelinketone 5%

Butyl glycol ether 5%

C, resin polymerization technology and system lacquer craftwork are all undertaken by above-mentioned processing condition and operation, and product is the baking finish of thermoset non-bezene acrylic acid resin.

Claims

1, a kind of production method of non-bezene acrylic acid resin lacquer, the prescription (weight percent) that it is characterized in that synthetic resins is: methyl methacrylate 10-30%, butyl acrylate 10-30%, Propylene glycol monoacrylate 5-10%, vinylformic acid 1-5%, N-BUTYL ACETATE 20-30%, butanols 20-30%, benzoyl peroxide 0.3-1%, the prescription (weight percent) of modulation acrylate resin lacquer is: acrylate resin (50%) 40-60%, Rutile type Titanium Dioxide 10-25%, low degree of etherification melamine resin (60%) 8-20%, oxytol acetate 3-8%, butanols 3-8%, cyclohexanone 3-8%, butyl glycol ether 3-8%.

2, production method according to claim 1, the prescription (weight percent) that it is characterized in that synthetic resins is: methyl methacrylate 20%, butyl acrylate 20%, Propylene glycol monoacrylate 70%, vinylformic acid 3%, N-BUTYL ACETATE 25%, butanols 25%, benzoyl peroxide 0.3%, the prescription (weight percent) of modulation acrylate Rhus lacquer is: acrylate resin (50%) 50%, Rutile type Titanium Dioxide 20%, low degree of etherification melamine resin (60%) 10%, oxytol acetate 5%, pimelinketone 5%, butyl glycol ether 5%.

3, a kind of production technique of non-bezene acrylic acid resin lacquer, it is characterized in that resin polymerization technology is at first acetate butyl and butanols to be added reactor after 115 ℃ of mixing, and then evenly be added dropwise in the reactor mix unit, dropping and churning time are 3 hours, temperature is controlled at 125 ℃ ± 2 ℃, monomer all adds the back and keeps refluxing 2 hours at 120-125 ℃, and adds 0.5% benzoyl peroxide (dissolving with butanols).