CN103224748A - Water-diluted alkyd paint and preparation method thereof - Google Patents

Abstract

The invention discloses water-diluted alkyd paint which comprises the following components in percentage by weight: 30-50% of alkyd resin, 5-30% of tinting pigment, 0.1-20% of filler pigment, 0.5-2% of assistant and 10-40% of dilution water, wherein the dilution water is tap water with a certain amount of specific surfactant; the surfactant refers to sodium sulfonate or nonylphenol polyoxyethylene ether and derivative thereof (bigger than 10 alkyls); and the dilution water comprises the following components in percentage by weight: 0.1-5% of surfactant, 95-99.5% of tap water and 0.5-2% of defoaming agent. According to the invention, the dilution water is used instead of organic solvent to greatly reduce the use of organic solvent, and the inherent physical and mechanical properties of the alkyd paint are ensured; and alkoxy groups in the dilution water and carbon groups in the alkyd resin are connected through hydrogen bonds (i.e. subjected to hydrogen bonding reaction), and the both are combined to compose a high-molecular-weight polymer grid structure so as to enhance the affinity of the alkyd resin, so that the formed emulsion is very stable, and the prepared paint is very stable in storage performance.

Description

Thin up type alkyd paint and preparation method thereof

Technical field

The present invention relates to the paint field, particularly a kind of thin up type alkyd paint, and provide rational preparation method for it.

Background technology

In the global range; coating industry has obtained very big development; China's coating industry has been obtained achievement attracting people's attention especially; the ultimate production of coating products has occupied the No. 1 in the world; the coating ultimate production was 1,100 ten thousand tons in 2012; but; great majority still are traditional capable coating of solvent; huge organic solvent emission will cause serious topsoil; therefore; the environmentally friendly coating that with water is solvent will have crucial meaning to environment protection. and people are to requirement on environmental protection and more and more higher to the understanding of coating pollution; countries in the world are the quantity discharged of strict control VOC (organic composition volatile matter) all; limit the production of high VOC coating products; use; and having risen to the height of laws and regulations, energy-saving and emission-reduction have become Chinese Government and have made the formal commitment to global, for this reason; the environmentally friendly coating products of development and production, imperative.

Alkyd varnish is an important big class in paint, 18 big classes of coating, domestic annual production reaches 4,000,000 tons, organic solvent is generally 30%～50% in the traditional paint, be that the annual organic solvent emission amount of this kind reaches 120～2,000,000 tons, these solvent based coatings are poisonous, harmful, inflammable and explosive, can pollute environment, if water can be introduced and substitute most of or whole organic solvent in the alkydpaints, the performance result of use of paint remains unchanged substantially, will reduce using and discharging of organic solvent in a large number.

Summary of the invention

The objective of the invention is in order to overcome the shortcoming of above-mentioned background technology, a kind of thin up type alkyd paint is provided, have nonpoisonous and tasteless, safety and environmental protection, easy to use, save characteristics such as resource, simultaneously, organic solvent with water replacement high price has also reduced production cost.

Technical scheme of the present invention is: a kind of thin up type alkyd paint, the per-cent of its each moiety and its weight is: Synolac: 30%～50 %, tinting pigment: 5%～30%, filler pigment: 0.1%～20%, auxiliary agent: 0.5%～2%, dilution water: 10%～40%, described dilution water is that tap water adds quantitatively specific tensio-active agent, described tensio-active agent be meant greater than the sodium sulfonate of 10 alkyl or the ninth of the ten Heavenly Stems own phenol oxyethylene ether and derivative wherein any, each moiety of described dilution water and the per-cent of its weight are: tensio-active agent: 0.1%～5%, tap water: 95%～99.5%, defoamer: 0.5%～2%.

Described Synolac has four kinds of different componentss and uses in the present invention, is respectively medium oil alkyd one, medium oil alkyd two, medium oil alkyd three, medium oil alkyd four.

The per-cent of described medium oil alkyd one its each moiety and its weight is: soy(a)-bean oil fatty acid: 45%～70%, and glycerine: 10%～25%, phthalic anhydride: 20%～45%.

The per-cent of described medium oil alkyd two its each moietys and its weight is: soy(a)-bean oil fatty acid: 40%～70%, and tetramethylolmethane: 10%～20%, phthalic anhydride: 20%～45%.

The per-cent of described medium oil alkyd three its each moietys and its weight is: soy(a)-bean oil fatty acid: 40%～70%, and glycerine: 10%～25%, terephthalic acid: 20%～40%.

The per-cent of described medium oil alkyd four its each moietys and its weight is: soy(a)-bean oil fatty acid: 30%～60%, and tetramethylolmethane: 10%～20%, terylene waste material: 10%～25%, rosin: 10%～15%, phthalic anhydride: 5%～15%.

The preparation method of described dilution water may further comprise the steps:

A), be metered into the tap water of formula ratio;

B), mixing speed is transferred to 400～800rpm;

C), slowly add tensio-active agent, adding speed surpasses the absorption rate of water, and promptly tensio-active agent cannot float on the surface, and adds to finish the back and continue to stir 30～60 minutes from vortex central authorities;

D), slowly add defoamer, continuation stirring 20～40 minutes in the stirring;

E), the no insolubles of check, and homogeneous stability is transparent promptly finishes.

Described thin up type alkyd paint, its preparation method may further comprise the steps:

A), earlier Synolac tinting pigment and filler pigment are added that the speed with 800 rpm～1200 rpm stirs in the spice still, viscosity is higher to add 10～20% dilution water;

B), use 1000 rpm～1500 rpm stirring velocitys to continue to stir 30～60 minutes;

C), go up sand mill and be ground to fineness below 30 microns; Stirring velocity stirring with 600 rpm～800 rpm slowly adds the alkyd industrial coating that auxiliary agent and dilution water can make performance and use solvent phase to work as successively after 15～30 minutes.

The invention has the beneficial effects as follows: the present invention has substituted organic solvent with dilution water, has significantly reduced the use of organic solvent, and has guaranteed alcohol acids coating inherent physical and mechanical properties; Alkoxyl group in the dilution water fuses by hydrogen bond with the carbon back of Synolac, hydrogen bond key and reaction promptly take place, the two increases Synolac in conjunction with constituting the high-molecular weight polymer spatial grid structure affinity makes the emulsion of its formation very stable, and the coating storge quality of making is very stable.

Embodiment

Below in conjunction with example the present invention is done further specific descriptions:

Embodiment 1:

The preparation of the synthetic enamel of thin up

The preparation of A, dilution water:

1, the dodecylbenzene sodium sulfonate 0.1%～1.5%

2, tap water 98%～99.5%

3, defoamer 0.4%～1%

Preparation technology's method is as follows:

1, is metered into the tap water of formula ratio;

2, mixing speed is transferred to 400～500rpm;

3, slowly add tensio-active agent from vortex central authorities, adding speed does not surpass the absorption rate of water, and promptly tensio-active agent cannot float on the surface, and adds to finish to continue to stir 30～40 minutes;

4, slowly add defoamer in the stirring, continue to stir 20～30 minutes;

5, the no insolubles of check, and homogeneous stability is transparent promptly finishes.

B, lacquering are formed:

Medium oil alkyd one 45%～50 %

Tinting pigment 5%～20%

Filler pigment 0.1～5%

Auxiliary agent 0.5%～1%

Dilution water 10%～25%

Need to prove: the per-cent of medium oil alkyd one its each moiety and its weight is: soy(a)-bean oil fatty acid: 45%～70%, and glycerine: 10%～25%, phthalic anhydride: 20%～45%; Tinting pigment is: carbon black or titanium dioxide or red; Filler pigment is: talcum powder or barium sulfate or lime carbonate; Auxiliary agent is: dispersion agent or defoamer or siccative.

Prepare coating then, its preparation method is as follows:

1, Synolac tinting pigment and filler pigment are added as the speed with 800 rpm～1000rpm in the spice still stir earlier, viscosity is higher to add 10～20% dilution water;

2, use 1000 rpm～1200 rpm to continue to stir 30～40 minutes;

3, go up sand mill and be ground to fineness below 20 microns; Stirring with 600 rpm～800 rpm slowly adds the synthetic enamel that auxiliary agent and dilution water can make performance and use solvent phase to work as successively after 15～30 minutes.

As follows through repetition test contrast the present invention and the data contrast of national standard on performance:

Embodiment 2:

The preparation of thin up type alkyd steel construction lacquer

The preparation of A, dilution water:

1, nonyl phenol oxyethylene methyl ether 0.1%～1%

2, tap water 98%～99.5%

3, defoamer 0.3%～1%

Preparation technology's method is as follows:

1, is metered into the tap water of formula ratio;

2, mixing speed is transferred to 500～600rpm;

3, slowly add tensio-active agent from vortex central authorities, adding speed does not surpass the absorption rate of water, and promptly tensio-active agent cannot float on the surface, and adds to finish to continue to stir 20～30 minutes;

4, slowly add defoamer in the stirring, continue to stir 10～20 minutes;

5, the no insolubles of check, and homogeneous stability is transparent promptly finishes.

B, finished product lacquer are formed

Medium oil alkyd 2 30%～40%

Tinting pigment 5%～15%

Specific rust-stabilising pigment 15%

Filler pigment 5%～15%

Auxiliary agent 0.5%～1%

Dilution water 15%～35%

Need to prove: the per-cent of medium oil alkyd two its each moietys and its weight is: soy(a)-bean oil fatty acid: 40%～70%, and tetramethylolmethane: 10%～20%, phthalic anhydride: 20%～45%; Tinting pigment is: titanium dioxide or phthalein cyanogen indigo plant or organic yellow; Specific rust-stabilising pigment is: aluminium triphosphate or ST or ferrotitanium powder; Filler pigment is: lime carbonate or talcum powder; Auxiliary agent is: siccative or defoamer.

Prepare coating then, its preparation method is as follows:

1, Synolac tinting pigment and filler pigment are added as the speed with 800 rpm～1000 rpm in the spice still stir earlier, viscosity is higher to add 10～20% dilution water;

2, use 1000 rpm～1200 rpm to continue to stir 30～40 minutes;

3, go up sand mill and be ground to fineness below 35 microns; Stirring with 500 rpm～700 rpm slowly adds the alkyd antifouling paste that auxiliary agent and dilution water can make performance and use solvent phase to work as successively after 15～30 minutes.

  

As follows through repetition test contrast the present invention and the data contrast of national standard on performance:

Embodiment 3:

The preparation of the prepared alkyd paint of thin up

The preparation of A, dilution water:

1, the tetradecyl benzene sulfonic acid sodium salt 0.2%～2.0%

2, tap water 97%～99.3%

3, defoamer 0.5%～1%

Preparation technology's method is as follows:

1, is metered into the tap water of formula ratio;

2, mixing speed is transferred to 550～650rpm;

3, slowly add tensio-active agent from vortex central authorities, adding speed does not surpass the absorption rate of water, and promptly tensio-active agent cannot float on the surface, and adds to finish to continue to stir 30～60 minutes;

4, slowly add defoamer in the stirring, continue to stir 25～35 minutes;

5, the no insolubles of check, and homogeneous stability is transparent promptly finishes.

B, finished product lacquer are formed

Medium oil alkyd 3 35%～45%

Tinting pigment 5%～15%

Filler pigment 15%～20%

Auxiliary agent 0.5%～1%

Dilution water 20%～35%

Need to prove: the per-cent of medium oil alkyd three its each moietys and its weight is: soy(a)-bean oil fatty acid: 40%～70%, and glycerine: 10%～25%, terephthalic acid: 20%～40%; Tinting pigment is: titanium dioxide or phthalein cyanogen indigo plant; Filler pigment is: lime carbonate or talcum powder; Auxiliary agent is: siccative, defoamer.

Prepare coating then, its preparation method is as follows:

1, Synolac tinting pigment and filler pigment are added as the speed with 600 rpm～800 rpm in the spice still stir earlier, viscosity is higher to add 10～20% dilution water;

2, use 1100rpm～1300 rpm to continue to stir 30～50 minutes;

3, go up sand mill and be ground to fineness below 30 microns; Stirring with 700 rpm～900 rpm slowly adds the prepared alkyd paint that auxiliary agent and dilution water can make performance and use solvent phase to work as successively after 20～40 minutes.

As follows through repetition test contrast the present invention and the data contrast of national standard on performance:

Embodiment 4:

The preparation of the prepared alkyd paint of thin up

The preparation of A, dilution water:

1, nonyl phenol oxyethylene butyl ether 0.2%～2.0%

2, tap water 97%～99.3%

3, defoamer 0.5%～1%

Preparation technology's method is as follows:

6, be metered into the tap water of formula ratio;

7, mixing speed is transferred to 550～650rpm;

8, slowly add tensio-active agent from vortex central authorities, adding speed does not surpass the absorption rate of water, and promptly tensio-active agent cannot float on the surface, and adds to finish to continue to stir 30～60 minutes;

9, slowly add defoamer in the stirring, continue to stir 25～35 minutes;

10, the no insolubles of check, and homogeneous stability is transparent promptly finishes.

B, finished product lacquer are formed

Medium oil alkyd 4 35%～45%

Tinting pigment 5%～15%

Filler pigment 15%～20%

Auxiliary agent 0.5%～1%

Dilution water 20%～35%

Need to prove: the per-cent of medium oil alkyd four its each moietys and its weight is: soy(a)-bean oil fatty acid: 30%～60%, and tetramethylolmethane: 10%～20%, terylene waste material: 10%～25%, rosin: 10%～15%, phthalic anhydride: 5%～15%; Tinting pigment is: titanium dioxide or phthalein cyanogen indigo plant; Filler pigment is: lime carbonate or talcum powder; Auxiliary agent is: siccative or defoamer.

Prepare coating then, its preparation method is as follows:

1, Synolac tinting pigment and filler pigment are added as the speed with 600 rpm～800 rpm in the spice still stir earlier, viscosity is higher to add 10～20% dilution water;

2, use 1100rpm～1300 rpm to continue to stir 30～50 minutes;

3, go up sand mill and be ground to fineness below 30 microns; Stirring with 700 rpm～900 rpm slowly adds the prepared alkyd paint that auxiliary agent and dilution water can make performance and use solvent phase to work as successively after 20～40 minutes.

As follows through repetition test contrast the present invention and the data contrast of national standard on performance:

Claims (7)

1. thin up type alkyd paint, the per-cent that it is characterized in that its each moiety and its weight is: Synolac: 30%～50 %, tinting pigment: 5%～30%, filler pigment: 0.1%～20%, auxiliary agent: 0.5%～2%, dilution water: 10%～40%, described dilution water is that tap water adds quantitatively specific tensio-active agent, described tensio-active agent be meant greater than the sodium sulfonate of 10 alkyl or the ninth of the ten Heavenly Stems own phenol oxyethylene ether and derivative wherein any, each moiety of described dilution water and the per-cent of its weight are: tensio-active agent: 0.1%～5%, tap water: 95%～99.5%, defoamer: 0.5%～2%.

2. thin up type alkyd paint according to claim 1, it is characterized in that described Synolac is a medium oil alkyd, the per-cent of its each moiety and its weight is: soy(a)-bean oil fatty acid: 45%～70%, and glycerine: 10%～25%, phthalic anhydride: 20%～45%.

3. thin up type alkyd paint according to claim 1, it is characterized in that described Synolac is a medium oil alkyd, the per-cent of its each moiety and its weight is: soy(a)-bean oil fatty acid: 40%～70%, and tetramethylolmethane: 10%～20%, phthalic anhydride: 20%～45%.

4. thin up type alkyd paint according to claim 1, it is characterized in that described Synolac is a medium oil alkyd, the per-cent of its each moiety and its weight is: soy(a)-bean oil fatty acid: 40%～70%, and glycerine: 10%～25%, terephthalic acid: 20%～40%.

5. thin up type alkyd paint according to claim 1, it is characterized in that described Synolac is a medium oil alkyd, the per-cent of its each moiety and its weight is: soy(a)-bean oil fatty acid: 30%～60%, tetramethylolmethane: 10%～20%, terylene waste material: 10%～25%, rosin: 10%～15%, phthalic anhydride: 5%～15%.

6. thin up type alkyd paint according to claim 1 is characterized in that the preparation method of described dilution water may further comprise the steps:

A), be metered into the tap water of formula ratio;

B), mixing speed is transferred to 400～800rpm;

C), slowly add tensio-active agent, adding speed surpasses the absorption rate of water, and promptly tensio-active agent cannot float on the surface, and adds to finish the back and continue to stir 30～60 minutes from vortex central authorities;

D), slowly add defoamer, continuation stirring 20～40 minutes in the stirring;

E), the no insolubles of check, and homogeneous stability is transparent promptly finishes.

7. thin up type alkyd paint according to claim 1 is characterized in that its preparation method may further comprise the steps:

A), earlier Synolac tinting pigment and filler pigment are added that the speed with 800 rpm～1200 rpm stirs in the spice still, viscosity is higher to add 10～20% dilution water;

B), use 1000 rpm～1500 rpm stirring velocitys to continue to stir 30～60 minutes;

C), go up sand mill and be ground to fineness below 30 microns; Stirring velocity stirring with 600 rpm～800 rpm slowly adds the alkyd industrial coating that auxiliary agent and dilution water can make performance and use solvent phase to work as successively after 15～30 minutes.