Secondary quantitative analysis of epoxy-coal tar anticorrosive coating formulations

Jamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, Normakhmat, Yodgorov

Қўқон ДПИ. Илмий хабарлар · 2026-yil

Annotatsiya

This paper presents a secondary quantitative analysis of four epoxy-coal tar anticorrosive coating formulations disclosed in Uzbekistan patent UZ IAP 8558. The aim is to compare the reported formulation-level performance without attributing effects to individual components that were not varied independently. All formulations contain 60 wt.% ED-20 epoxy resin/coal tar binder, while the ED-20:coal tar mass ratio changes from 1:0.7 to 1:0.4 and the contents of DTB-2 hardener, furfuryl alcohol distillation residue, wollastonite, andesite flour and saponified tall pitch are adjusted. Composition 4 contains the 1:0.4 binder ratio, 7 wt.% DTB-2, 5 wt.% furfuryl alcohol distillation residue, 13 wt.% wollastonite, 8 wt.% andesite flour and 7 wt.% saponified tall pitch. The patent reports for this formulation a pull-off adhesion of 14.5 MPa, an 11% decrease in adhesion after 1000 h water exposure, cathodic disbonding of 1.20 cm², penetration of 0.07 mm and tensile strength of 42.1 MPa. Relative to the numerical reference coating reported in the same patent table, these single values correspond to a 76.8% increase in adhesion and a 177.0% increase in tensile strength, together with reductions of 71.1% in water-induced adhesion loss, 73.3% in cathodic disbonding and 72.0% in penetration. Because replicate-level uncertainty is unavailable and several variables change simultaneously, the results are interpreted descriptively at the whole-formulation level. The analysis identifies Composition 4 as the formulation with the most favorable reported combination of the five tested properties and defines the experimental work needed to separate binder, curing and mineral-filler contributions.

Maqola ma’lumotlari
MualliflarJamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, Normakhmat, Yodgorov
JurnalҚўқон ДПИ. Илмий хабарлар
NashriyotҚўқон давлат педагогика институти
ISSN3030-3958
Nashr sanasi2026-10-10
Jild8
Son9
Betlar1383-1390
TilIngliz
DOI10.70728/a.series.tab.v08.i09.180
Indeksga qo‘shilgan2026-10-11

DOI: 10.70728/a.series.tab.v08.i09.180 · Maqolaning asl sahifasi

Kalit so‘zlar

epoxy-coal tar coating, corrosion protection, comparative analysis, wollastonite, adhesion, cathodic disbonding, penetration resistance.

Iqtibos keltirish

APAJamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, & Normakhmat, Yodgorov (2026). SECONDARY QUANTITATIVE ANALYSIS OF EPOXY-COAL TAR ANTICORROSIVE COATING FORMULATIONS. Қўқон ДПИ. Илмий хабарлар, 8(9), 1383-1390. https://doi.org/10.70728/a.series.tab.v08.i09.180
GOST (OAK)Jamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, Normakhmat, Yodgorov SECONDARY QUANTITATIVE ANALYSIS OF EPOXY-COAL TAR ANTICORROSIVE COATING FORMULATIONS // Қўқон ДПИ. Илмий хабарлар. – 2026. – T. 8, № 9. – P. 1383-1390. – DOI: 10.70728/a.series.tab.v08.i09.180.
MLAJamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, and Normakhmat, Yodgorov. “SECONDARY QUANTITATIVE ANALYSIS OF EPOXY-COAL TAR ANTICORROSIVE COATING FORMULATIONS.” Қўқон ДПИ. Илмий хабарлар, 8(9), 1383-1390, 2026. https://doi.org/10.70728/a.series.tab.v08.i09.180
ChicagoJamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, and Normakhmat, Yodgorov. “SECONDARY QUANTITATIVE ANALYSIS OF EPOXY-COAL TAR ANTICORROSIVE COATING FORMULATIONS.” Қўқон ДПИ. Илмий хабарлар, 8(9), 1383-1390 (2026). https://doi.org/10.70728/a.series.tab.v08.i09.180
HarvardJamshid, Hayitmurod o'g'li Eshqobilov, Mirzokhid, Muratovich Abdukarimov, and Normakhmat, Yodgorov (2026) ‘SECONDARY QUANTITATIVE ANALYSIS OF EPOXY-COAL TAR ANTICORROSIVE COATING FORMULATIONS’, Қўқон ДПИ. Илмий хабарлар, 8(9), 1383-1390. https://doi.org/10.70728/a.series.tab.v08.i09.180
BibTeX
@article{jamshidhayitmurodoglieshqobilov2026,
  title = {SECONDARY QUANTITATIVE ANALYSIS OF EPOXY-COAL TAR ANTICORROSIVE COATING FORMULATIONS},
  author = {Jamshid, Hayitmurod o'g'li Eshqobilov and Mirzokhid, Muratovich Abdukarimov and Normakhmat, Yodgorov},
  journal = {Қўқон ДПИ. Илмий хабарлар},
  year = {2026},
  volume = {8},
  number = {9},
  pages = {1383-1390},
  doi = {10.70728/a.series.tab.v08.i09.180},
  url = {https://doi.org/10.70728/a.series.tab.v08.i09.180}
}

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