The method of obtaining white and coloured oil paints

 

(57) Abstract:

The essence of the invention: a method of obtaining white and coloured oil paints includes sequential mixing of the components of the binder is linseed oil, pigment, filler and drying agent in a ball mill, thus preliminary in a ball mill with a ratio of the volume of the ball load to the volume of the mill 0,5-0,55 load the filler and pigment, fray at a speed of 306 rpm until a homogeneous state, download a drying oil in the amount of 70% of the total prescription number and again to fray milling degree 100 μm, enter the remainder of the drying oil and desiccant fray to 80 μm, moreover, the overall fill factor of the mill shall be not more than 0.7, while the linseed oil, pigment, drier and a filler taken in the following ratio, wt.%: linseed oil 39-44, pigment 13-25, desiccant 0,01-0,6, filling the rest. The technical result - the creation of a method of obtaining oil paints with improved qualitative and quantitative characteristics. 6 C.p. f-crystals, 4 PL.

The invention relates to methods for oil paints with pigments used for painting interior and exterior surfaces of buildings (walls, ceilings, basements and Easie desiccant and anticoagulant additives, preventing the formation of a dense precipitate.

A method of obtaining oil paints, including mixing paint ingredients: linseed oil, pigment, filler and stabilizer-lecithin (Oil paint MA - 15, GOST 10503-71.)

The method provides a sustainable, long exfoliating compositions that provide good paint, but with insufficient resistance (0.5 hours) and duration of drying (24 hours).

Also known is a method of obtaining white and coloured oil paints by sequential mixing of the components of the binder with linseed oil, pigment, filler and drying agent in a ball mill.

(Livshits, M. L., Pilachowski the Institute of Paint and varnish materials. The Handbook. - M.: Chemistry, 1982, S. 836).

The disadvantage of this method is the length of the retrieval process, as well as a rather high level of opacity, which in all other satisfactory properties of paint should when creating new ways to reduce that ultimately leads to the reduction of paint consumption, and, consequently, to reduce the cost of coverage.

Object of the invention is to provide a method for obtaining oil paint with opposable.

The problem is solved in that the mixture of the starting components of the paint are as follows: first, in a ball mill type AMK-12 standard TGL-25501 with a ratio of ball load to the volume of the mill 0,5-0,55 fray filler and pigment, taken in amounts corresponding to the recipe of this paint at a speed of 306 rpm until a homogeneous state, then download the drying oil in the amount of 70% of the total prescription number and fray again to 100 μm, enter the remainder of the drying oil and desiccant fray to 80 μm. The overall fill factor of the mill should not exceed 0.7.

According to the method for manufacturing paints use varnish, pigment, drier and a filler in the following ratio, wt.%:

Drying oil - 39 - 44

Pigment - 13 - 25

Desiccant - 0,01 - 0,6

Filler - Rest

moreover, the filler used chalk, limestone flour, kaolin, barite, and as the inorganic pigment and/or organic dyes, including as a pigment, it is advisable to use colored silicates of calcium and/or painted barites. The pigments used in the form of dry powders or pastes, suspensions. In the implementation of the manufacturing process klami, and the viscosity of the obtained ink regulate before packing the introduction of a certain number of white spirit or other solvents.

The method is as follows.

Filler or mixture of fillers sieved by the vibrating screen (the number of cells 918 on cm2) and served with pigments in a ball mill filled steatite grinding bodies, and fray at the speed of 306 rpm until a homogeneous state. The load factor of the mill balls 0,5 - 0,55. Then in a ball mill, in the absence of operation pre-mixing in a separate mixer, enter 70 wt.% the required quantity of binder - drying oil oil, for example, drying oil of the semidrying vegetable oil, or any other type of "oksol", a combination of a mixture of linseed and sunflower oils (K-2, K-3, K-4, K-5), natural linseed oil, drying oil, natural hemp, linseed oil alkyd (glyptal, pentaftalevyh, keptalive), or their mixture in any compatible combination and next to fray milling degree 100 μm. Then enter warmed the rest of the oil and, if necessary, desiccant and fray again, now to milling degree not more than 80 μm. A mandatory condition is ü more than 0.7. The total milling time up to 80 microns up to 7.5 hours, which is considerably less than in the known method. The resulting paint set "type" in accordance with the standard, check the compliance of the performance requirements of normative-technical documentation. In the case of viscosity deviations from the specified regulate its introduction of the necessary quantity of white spirit, and then the finished paint serves on packing.

Improving the quality of the prepared paint is explained by carrying out stepwise milling in a specific sequence, using the specific process conditions of milling. Keeping a certain structure also allows in this production process to ensure the best outcome indicators of quality paint.

Testing laboratory and industrial batches of oil paints showed their compliance with the requirements of GOST 10503 "oil Paint ready to use" on all counts and, in addition, discovered the specific features of oil paints obtained by the proposed method:

1) Even without the introduction of desiccant accelerates the drying process of the paint coating;

2) the drying Time is about 16 hours, which IU the s of water at 202oC, which is 8 hours against standardized rate 0.5 hours;

4) High stability of the coating over time, no stratification, a slight increase of viscosity over time without the use of anticoagulant additives.

Following are recipes white and coloured oil paints, received on the proposed technology.

1) white paint, wt.%:

linseed oil natural flax - 39,4

titanium dioxide - 25

filler (chalk, kaolin) effectively removes - 35

desiccant - 0,6

2) color paints:

green, wt.%:

linseed oil combined LINENO-sunflower - 40

pigment green phtalocyanine - 4

titanium dioxide - 19,9

the filler is limestone and 34.4

Colin - 1,1

desiccant - 0,6

red, wt.%:

linseed oil, combined or "oksol" - 40

pigment - bright red 4 WW (12% suspension) - 7

titanium dioxide - 6 - Colin - 14

limestone - 32,4

desiccant - 0,6

blue, wt.%:

drying oil - 40

pigment blue phtalocyanine - 3

titanium dioxide - 22

filling: flour, limestone and 19.4

Colin - 15

desiccant - 0,6

The average values of the quality metric for the received colors represented in alumosilicate calcium bright green color and blue color are shown in table 2, and their formulation in table 3.

Use as a component of the pigment colored barium sulphate is shown in the following composition of oil paint, wt.%:

turquoise:

linseed oil LINENO-Iwasawa oxidized - 39,6

pigments: colored white barite - 20,69

blue phtalocyanine - 0,073

yellow lightfastness - 0,146

filler (chalk) - 39,39

desiccant - rest

Average quality paints are presented in table 4.

Thus, using the proposed method of obtaining oil paints allows for preserving the basic requirements of GOST 10503 improve quality paints prototype for hiding power and toughness, resistance to static action of water and the drying time.

The proposed technology allows to reduce the consumption of titanium dioxide by more than 60%, lead crowns - more than 70% of the organic pigments - up to 85%.

1. The method of obtaining white and coloured oil paints, comprising the sequential mixing of the components of the binder is linseed oil, pigment, filler and drying agent in a ball mill, wherein the pre-ball mill with the ratio of the volume chromogenic state, download the drying oil in the amount of 70% of the total prescription number and again to fray milling degree 100 μm, enter the remainder of the drying oil and desiccant fray to 80 μm, and the fill factor of the mill shall be not more than 0.7, while the linseed oil, pigment, drier and a filler taken in the following ratio, wt.%:

Drying oil - 39 - 44

Pigment - 13 - 25

Desiccant - 0,01 - 0,6

Filler - Rest

2. The method according to p. 1, characterized in that the filler used chalk, limestone flour, kaolin, barite, or a mixture thereof.

3. The method according to p. 1, characterized in that the pigment used inorganic and/or organic pigments in dry form or in the form of suspensions, pastes.

4. The method according to PP.1 and 3, characterized in that the pigment used colored silicates of calcium.

5. The method according to PP.1 and 3, characterized in that the pigment used colored barium sulphate.

6. The method according to p. 1, characterized in that the ball joint boot is steatite grinding media.

7. The method according to p. 1, characterized in that the viscosity of the resulting oil paint regulate the introduction of white spirit or on the Sabbath.

 

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FIELD: corrosion protection.

SUBSTANCE: invention is designed for oil production and can also be used in mechanical engineering, instrumentation engineering, and other branches. Composition contains 6-10% low-grade lignosulfonates, 2-5% industrial oil (spindle oil, tall oil, or MS-20 oil), 60-65% production waste, and 24-28% additive, namely primary C8-C11-amines. Production waste is, in particular, vat residues from production of synthetic fatty C10-C-acids or solid petroleum hydrocarbons: asphaltene-tar-paraffin deposits formed during production and transportation of petroleum. Use of composition increases degree of protection of metallic objects against corrosion under atmospheric precipitate conditions owing to retained high adhesion of coating formed from composition to metal, reduced porosity of coating, and prolonged period of time before appearance of the first center of corrosion attack at lower thickness of coating.

EFFECT: improved anticorrosion characteristics, simplified composition preparation technology, reduced coating formation time, and reduced expenses due to utilized waste.

2 cl, 2 tbl

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