Objective. The purpose of this study is to study the adhesive properties of samples of an aqueous emulsion of an epoxy thermosetting polymer, as well as to conduct comparative analyzes of the results of tests performed on water-emulsion epoxy thermosetting film-forming materials to determine adhesive strength. The influence of the concentration of the dry residue of the emulsion system on its adhesive strength is shown. Methods. To achieve the goal of this study, a method was used to determine the adhesive strength of samples of an aqueous emulsion of an epoxy thermosetting polymer on a computerized electromechanical universal testing machine. As an emulsifier in a water-emulsion system based on an epoxy polymer, carboxymethyl cellulose was used in amounts based on the weight of the epoxy resin. To accelerate the hardening of the water-based epoxy film former, the curing accelerator UP-606 was used in the amount of 1.2% by weight of the epoxy resin. Results. The results of experiments on a computerized electromechanical universal testing machine to determine the adhesive properties of samples of an aqueous emulsion of an epoxy thermosetting film former showed that the highest adhesive strength of the hardened coating of an aqueous epoxy polymer emulsion on metal reaches up to 7.83 MPa at a dry residue concentration of the emulsion system of 60 percent. Conclusion. The results obtained by the method for determining the adhesive strength of samples of an aqueous emulsion of an epoxy thermosetting film former on a computerized electromechanical universal testing machine indicate that this water-emulsion composition based on epoxy resin can be used as a film former, or as a paint and varnish matrix for metals.
| Mualliflar | Yusupov, Muzafar, Kiyomov, Sharifjon, Zayniyeva, Raisa, Ikromova, Maftuna |
|---|---|
| Jurnal | Наманган муҳандисликтехнология институти илмийтехника журнали |
| Nashr sanasi | 2023-06-30 |
| Jild | 8 |
| Son | 2 |
| Betlar | 102-107 |
| Til | Ingliz |
Anti-corrosion coating, water-based emulsions, epoxy resin, thermoset polymers, adhesive strength
Objective. This article is devoted to the state program «Strategy of actions in five priority areas of development of the Republic of Uzbekistan in 2017-2021» and «The New Uzbekistan’s Development Strategy» developed…
In the article, a new chain drive structure with elastic elements is designed for the seed distribution device drive. At the same time, the parameters of the proposed chain drive are defined.
Abstract. Objective. This article reflects the importance of low-pressure micro hydropower plants today, information about the problems, causes and ways to solve them. The problems of micro hydroelectric power stations…
Background of the problem. At present, many scientific results are being achieved in our country on the use of local mineral fillers in the field of composite materials production. To date, the use of mineral products…
Objective. Due to the technical failure of the line, illegal connections, temperature rise in the cable occurring in the section between the electricity distribution point and the consumer meter of the overhead power…
Abstract. Objective. The purpose of the study is to analyze the organizational and economic mechanisms related to the state support of industrial exports in the developed countries of the world and to identify the main…
The article is devoted to the description of the drying method of liquid liquid vehiclesproduced on the basis of a joint solution of heat generated by the authors. The number of leather layers,thermophiles properties…
In the article, a study on obtaining complex fertilizers with a gel composition that preserves mineral components by introducing local raw materials FarPAN, organic and inorganic acids and MAP (monoammonium phosphate)…
Cotton gins are used for ginning in regional cotton gins and clean districts ofUzbekistan using ginning devices of UK or 1XK type and pile-drums of their original design. Damage tothe natural properties of cotton in the…
The article presents the results of a study of the synthesis of a new type of pigment - copper phthalocyanine diphosphate (DAPCuPc), which contains macroheterocyclic compounds. The influence of the method of obtaining a…
Наманган муҳандисликтехнология институти илмийтехника журнали — barcha maqolalar