A.A. Zolotarev**, N.A.
Charykov**, N.K. Semenov*, V.A. Keskinov**, V.I. Namazbaev**, A.I. Lushin***.
* Saint-Petersburg State
University
** “Innovations
of Leningrad Institutes and Enterprises” JSC, Saint-Petersburg
*** Saint Petersburg Electrotechnical University
"LETI" (ETU)
The modification of a water-soluble paint by fullerene soot
The fullerene soot
The so-called fullerene soot
(vide terminology in the surveys and monographs [1-3]) was used in the capacity
of the fulleroid material-modifier.
The fullerene soot was obtained according to the
original methodologies (for example v. [4-6]) in ILIP JSC.
Fractional composition of the
fullerenes in the soot was ascertained by the methods of spectrophotometry,
high-efficiency hydronic chromatography, and mass-spectrometry (for example v. [3, 7-9]):
(C60=75±2 of the mass %, C70 = 23±2 of the mass %,
the highest fullerenes Cn>70 = 1.7±0.2 of the mass
%), hereinafter the content of an individual fullerene
in the sum of fullerenes is meant by the mass percent.
The water-soluble paint, surfaces for applying.
The water-soluble
paint VD-VA “Avangard” was
used in the capacity of the covering for the ferrous metals. The paint’s
color is white. It is used for external and internal
work, it ensures durational anticorrosive protection. It is fireproof and intoxical. The composition: dispersion, surfactant, anticorrosive
pigments, the filler, the preservative, water.
We took the plates
of steel-3 and aluminium with the area S = (10±0.1)*(7±0.1) = 70±1.7 cm² in the capacity of the surface for paint applying. The
plates were preliminarily degreased by the double acetone processing.
Resistance
to abrasion of the water-soluble
paint, modified by the fullerene soot.
The tests of the paint
covering for abrasion were implemented
according to the State Standard Specification RF [10] (sandblasting equipment)
at indoor temperature (20±3°C), under atmospheric pressure and
relative air humidity of 70±10 of relative percent. The corundum N63 was used
in the capacity of the destructive agent – abrasive. The
resistibility of the covering was calculated by the formula: 
, where: Ìabrasive abrasive indicates
the weight of the abrasive required for the covering’s wearout, 
- the thickness of the covering’s wearout.
The results are shown in the
diagrams for better evidence.
Adhesion
properties of the water-soluble paint, modified by the
fullerene soot, towards steel and aluminium.
The same material
and paint covering were used for the testing of the adhesion resistance of
paint on steel. The tests were conducted in accordance with the State Standard
Specification RF [11]. The so-called method of the “lattice incisions” was used for the identification. The dried covering’s sample is cut by
the razor blade (sharpness angle 20-30°, blade’s edge is 0.05 ÷ 0.10 mm)
into the system of “square” incisions with linear dimensions: 
mm². Herewith the incision cut through the
paint covering reaching the steel surface. The equipment AD-3 by TC (technical
conditions) 6-23-9-89 was used for the infliction of incisions. The extra
strong “adhesive tape” “tesa” was plotted on the gashed surface with its sticky
side afterwards. The “method of
exfoliation” at an angle 
90° with the averaged rate 
5
mm/s [11] was used
then.
|
Concentration of
the soot, % |
Adhesion
instability of the steel, % |
Adhesion instability of the aluminium, % |
|
0 |
0 |
1 |
|
0,05 |
1 |
4 |
|
0,1 |
5 |
0 |
|
0,3 |
0,5 |
5 |
|
1 |
100 |
70 |
literature
1. H.A.Williams. The Most Beautiful Molecule: The Discovery of
the Buckyball. Ed.: John Wiley
& Sons. 1997. 320 p.
2. Fullerenes. Study Guide. M: Exam 2005.
688 p.
3. Semenov K. N.,
Charykov N. A., Keskinov V. A., Piartman A. K., Blokhin A. A., Kopyrin A.
A. J. Chem. Eng. Data. 2010. V. 55. P.
13-36.
4. Abdugaev R.M., Alekhin O.S., Gerasimov
V.I., Losev G.M., Nekrasov K.V., Nikonov Yu.A., Soroka A.I. Charykov N.A.
Patient ÐÑÒ. 2005. WO 2005/087662 A1; N PCT/RU2005/000119; C01B 31/02.
5. Abdugaev R.M., Alekhin O.S., Gerasimov
V.I., Losev G.M., Nekrasov K.V., Nikonov Yu.A., Soroka A.I. Charykov N.A.
Patient ÐÑÒ. 2005. WO 2005/070826 A1; N ÐCT/RU2005/000025; C01B
31/02.
6. Abdugaev R.M., Alekhin O.S., Gerasimov
V.I., Losev G.M., Nekrasov K.V., Nikonov Yu.A., Soroka A.I. Charykov N.A. Rus.
Patient N2256608.
7. Semenov K. N.,
Charykov N. A., Arapov O. V., Alekseev N. I. J. Chem. Eng. Data. 2009. Vol. 54.
¹ 1. P. 756-761.
8. Semenov K. N.,
Charykov N. A., Russia: LAMBERT Academic Publishing. 2011. 237 p.
9. Semenov K.N.,
Charykov N. A., Namazbaev V.I., Alekseyev N.I., Gruzinskaya E.G., Postnov V.N., Krokhina O.A. Fullerenes,
Nanotubes and Carbon Nanostructures. 2011. V.19. P.225-236.
10. Rus. State Standard Specification (GOST) 20811-75. Materials paint. The methods
of the paint covering for abrasion.
11. Rus. State Standard Specification (GOST) 15140-78. Materials
paint. The methods of the paint covering for adhesion.