CN102766381A - 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 special-purpose finish paint and preparation method thereof of decorating of the deep yellow anti-discolouring engineering machinery of high solid

Technical field

The present invention relates to the special-purpose finish paint and preparation method thereof of decorating of the deep yellow anti-discolouring engineering machinery of a kind of high solid, belong to the 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, and three months just begin loss of gloss, beginning efflorescence in ten months, and the maintenance of Large Towers machine is very difficult like this.Different areas, effect are also different, particularly hot and humid area, and 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 particularly summer, high temperature is exposed to the sun, and the variable color loss of gloss is also being accelerated.For these situation, demand a kind of new coating urgently and occur, solve problems such as above-mentioned variable color, loss of gloss, efflorescence.

Summary of the invention

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

The special-purpose finish paint of decorating of the deep yellow anti-discolouring engineering machinery of a kind of high solid of the present invention is processed by following raw materials by weight percent: deep chrome yellow 30-32%, nano barium sulfate 0.8-1%, 70% vinyl 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 deep yellow anti-discolouring engineering machinery of a kind of high solid of the present invention is the special-purpose preparation method who decorates finish paint comprise the steps:

(1), press raw material weight per-cent, take by weighing thinner and add agitation vat, under the high-speed stirring situation; Add nano barium sulfate; Stirred 10-20 minute, and made its agglutination, progressively add UV light absorber, barium cadmium zinc composite stabilizer, bulky amine oxidation inhibitor, triphenyl phosphite again; After stirring, store for future use;

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

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

The present invention has following advantage: the invention discloses the special-purpose finish paint technology of decorating of the high-grade engineering machinery of the deep yellow anti-discolouring of high solid; Adopt thermoplastic acrylic resin volatile dry film technique; And adopt UV light absorber, bulky amine oxidation inhibitor, be equipped with coating industry and invent use barium cadmium zinc composite stabilizer, triphenyl phosphite oxidation inhibitor first; Add certain amount of nano permanent white simultaneously and utilize its volume big, stable and adsorptivity.Take above measure, solved bright color such as deep yellow well when outdoor application, easy to change, there are problems such as aging resistance, also significantly reduced cost simultaneously.Returning films has brought excellent properties, as: sticking power strengthens, mechanical property such as bonding force reinforcement between the coating; Coating has certain thixotropy, can not sink to the bottom sagging not during construction when coating is stored; In particular for high solid coating, organic solvent content reduces relatively, has practiced thrift the energy; Meet the industry policy of country, be welcomed by customers.

Description of drawings

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

Embodiment

Following embodiment can illustrate in greater detail the present invention, but does not limit the present invention in any form.

Embodiment 1: (1), press raw material weight per-cent: deep chrome yellow 30-32%, nano barium sulfate 0.8-1%, 70% vinyl 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 by weighing thinner and add agitation vat, under the high-speed stirring situation, add nano barium sulfate; Stirred 10-20 minute, and made its agglutination, progressively add UV light absorber again; 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% vinyl resin is added mixer, under stirring state, add deep chrome yellow, dispersion agent, behind the heart that stirs, discharging, after skin grinder is dispersed to Hegman grind gage and reaches 10 μ m, the entering mixing vessels;

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

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

Claims (2)

1. the special-purpose finish paint of decorating of the deep yellow anti-discolouring engineering machinery of high solid is characterized in that: processed by following raw materials by weight percent: deep chrome yellow 30-32%, nano barium sulfate 0.8-1%; 70% vinyl 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 special-purpose finish paint of decorating of the deep yellow anti-discolouring engineering machinery of the described high solid of preparation claim 1 comprises the steps:

(1), press raw material weight per-cent, take by weighing thinner and add agitation vat, under the high-speed stirring situation; Add nano barium sulfate; Stirred 10-20 minute, and made its agglutination, progressively add UV light absorber, barium cadmium zinc composite stabilizer, bulky amine oxidation inhibitor, triphenyl phosphite again; After stirring, store for future use;

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

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

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