CN102766381B - High-solid dark-yellow fastness decoration finish paint special for engineering machinery and preparation method thereof - Google Patents

Abstract

A high-solid dark-yellow fastness decoration finish paint special for engineering machinery is prepared from the raw materials by weight: 30-32% of dark chrome yellow, 0.8-1% of nanometer barium sulfate, 57-61.6% of 70% acrylic resin, 0.1-0.2% of ultraviolet absorber, 0.5-0.8% of hindered amine antioxidant, 1-1.5% of barium cadmium zinc compound stabilizer, 1-1.5% of triphenyl phosphite, 4-5% of diluent, 0.5% of dispersing agent and 0.5% of film formation auxiliary agent. The raw materials are stirred, dispersed and the like, and then filtered and packaged when viscosity achieves a standard. The high-solid dark-yellow fastness decoration finish paint has the following advantages that the technique of drying thermoplastic acrylic resin by volatilization to form a film is adopted, the ultraviolet absorber and the hindered amine antioxidant are used, the barium cadmium zinc compound stabilizer and the triphenyl phosphite antioxidant are matched for the first time in the paint industry, and simultaneously, a certain amount of nanometer barium sulfate is added, so that the problems that bright colors such as dark yellow are apt to change, aging performance exists and the like when the decoration finish paint is used outdoors are solved, and simultaneously the cost is substantially lowered.

Description

The deep yellow anti-discolouring engineering machinery of high solid special decorative finish paint and preparation method thereof

Technical field

The present invention relates to the deep yellow anti-discolouring engineering machinery of a kind of high solid special decorative finish paint and preparation method thereof, belong to macromolecular material chemical field.

Background technology

At present, engineering machinery tower machine all uses deep yellow acrylic acid top-coat, this coating advantage: bright-coloured, bright.Shortcoming is: not ageing-resistant, variable color just appears in two weeks, within three months, just starts loss of gloss, within ten months, starts efflorescence, and the maintenance of Large Towers machine is very difficult like this.Different areas, effect is also different, particularly hot and humid area, Air quality is bad, contains SO2, CO2 etc., and in rainy season, variable color, loss of gloss speed are faster, and this is the problem that acid rain causes; Different seasons are also different, and in particularly summer, high temperature is exposed to the sun, and variable color loss of gloss is also being accelerated.For these situations, urgently there is a kind of new coating to occur, solve the problems such as above-mentioned variable color, loss of gloss, efflorescence.

Summary of the invention

For the problems referred to above, the object of this invention is to provide the deep yellow anti-discolouring engineering machinery of a kind of high solid special decorative finish paint and preparation method thereof, solve the easy variable color of current engineering machinery decorative paint, loss of gloss, efflorescence and the problem such as not durable.

The deep yellow anti-discolouring engineering machinery of a kind of high solid of the present invention special decorative finish paint is made up of the raw material of following weight percent: deep chrome yellow 30-32%, nano barium sulfate 0.8-1%, 70% acrylic resin 57-61.6%, UV light absorber 0.1-0.2%, bulky amine oxidation inhibitor 0.5-0.8%, barium cadmium zinc composite stabilizer 1-1.5%, triphenyl phosphite 1-1.5%, thinner 4-5%, dispersion agent 0.5%, film coalescence aid 0.5%.

The preparation method of the deep yellow anti-discolouring engineering machinery of a kind of high solid of the present invention special decorative finish paint comprises the steps:

(1), press raw material weight per-cent, take thinner and add agitation vat, in high-speed stirring situation, add nano barium sulfate, stir 10-20 minute, make its agglutination, more progressively add UV light absorber, barium cadmium zinc composite stabilizer, bulky amine oxidation inhibitor, triphenyl phosphite, after stirring, store for future use;

(2), press raw material weight per-cent, filmogen 70% acrylic resin is added to mixer, under stirring state, add deep chrome yellow, dispersion agent, stirs after the heart, discharging is dispersed to Hegman grind gage through skin grinder and reaches after 10 μ m, enters mixing vessels;

(3), the mill base in mixing vessels in above-mentioned steps (2) is carried out in the situation of high-speed stirring, the slurries such as the nano barium sulfate storing for future use in step (1) are joined in the mixing vessels in step (2), then in mixing vessels, progressively add film coalescence aid, thinner again by raw material weight per-cent, after stirring, sampling detects with being coated with 4# inspection cup, when viscosity reached after 160 seconds, filter and package.

Tool of the present invention has the following advantages: the invention discloses the high-grade engineering machinery special decorative of the deep yellow anti-discolouring of high solid finish paint technology, adopt thermoplastic acrylic resin volatile dry film technique, and adopt UV light absorber, bulky amine oxidation inhibitor, be equipped with coating industry and invent first use barium cadmium zinc composite stabilizer, triphenyl phosphite oxidation inhibitor; Add a certain amount of nano barium sulfate to utilize its volume large, stable and adsorptivity simultaneously.Take above measure, solved well the bright color such as deep yellow in the time of outdoor application, easy to change, there is the problems such as aging resistance, also significantly reduce cost simultaneously.Return film and brought excellent properties, as: Adhesion enhancement, the mechanical property such as bonding force reinforcement between coating, coating has certain thixotropy, when coating is stored, can not sink to the bottom, sagging not when construction, in particular for high solid coating, organic solvent content reduces relatively, has saved the energy, meet national industry policy, be welcomed by customers.

Brief description of the drawings

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

Embodiment

The following examples can illustrate in greater detail the present invention, but do not limit in any form the present invention.

Embodiment 1:(1), press raw material weight per-cent: deep chrome yellow 30-32%, nano barium sulfate 0.8-1%, 70% acrylic resin 57-61.6%, UV light absorber 0.1-0.2%, bulky amine oxidation inhibitor 0.5-0.8%, barium cadmium zinc composite stabilizer 1-1.5%, triphenyl phosphite 1-1.5%, thinner 4-5%, dispersion agent 0.5%, film coalescence aid 0.5%; Take thinner and add agitation vat, in high-speed stirring situation, add nano barium sulfate, stir 10-20 minute, make its agglutination, more progressively add UV light absorber, barium cadmium zinc composite stabilizer, bulky amine oxidation inhibitor, triphenyl phosphite, after stirring, store for future use;

(2), press raw material weight per-cent, filmogen 70% acrylic resin is added to mixer, under stirring state, add deep chrome yellow, dispersion agent, stirs after the heart, discharging is dispersed to Hegman grind gage through skin grinder and reaches after 10 μ m, enters mixing vessels;

(3), the mill base in mixing vessels in above-mentioned steps (2) is carried out in the situation of high-speed stirring, the slurries such as the nano barium sulfate storing for future use in step (1) are joined in the mixing vessels in step (2), then in mixing vessels, progressively add film coalescence aid, thinner again by raw material weight per-cent, after stirring, sampling detects with being coated with 4# inspection cup, when viscosity reached after 160 seconds, filter and package.

Following table is the performance comparison of the deep yellow anti-discolouring engineering machinery of high solid special decorative finish paint and original deep yellow acrylic acid top-coat:

Claims (2)

1. the deep yellow anti-discolouring engineering machinery of high solid special decorative finish paint, it is characterized in that: the raw material by following weight percent is made: deep chrome yellow 30-32%, nano barium sulfate 0.8-1%, 70% acrylic resin 57-61.6%, UV light absorber 0.1-0.2%, bulky amine oxidation inhibitor 0.5-0.8%, barium cadmium zinc composite stabilizer 1-1.5%, triphenyl phosphite 1-1.5%, thinner 4-5%, dispersion agent 0.5%, film coalescence aid 0.5%.

2. the deep yellow anti-discolouring engineering machinery of preparation high solid claimed in claim 1 special decorative finish paint, comprises the steps:

(1), press raw material weight per-cent, take thinner and add agitation vat, in high-speed stirring situation, add nano barium sulfate, stir 10-20 minute, make its agglutination, more progressively add UV light absorber, barium cadmium zinc composite stabilizer, bulky amine oxidation inhibitor, triphenyl phosphite, after stirring, store for future use;

(2), press raw material weight per-cent, filmogen 70% acrylic resin is added to mixer, under stirring state, add deep chrome yellow, dispersion agent, stirs after the heart, discharging is dispersed to Hegman grind gage through skin grinder and reaches after 10 μ m, enters mixing vessels;

(3), the mill base in mixing vessels in above-mentioned steps (2) is carried out in the situation of high-speed stirring, the slurries such as the nano barium sulfate storing for future use in step (1) are joined in the mixing vessels in step (2), then in mixing vessels, progressively add film coalescence aid, thinner again by raw material weight per-cent, after stirring, sampling detects with being coated with 4# inspection cup, when viscosity reached after 160 seconds, filter and package.

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