Effect of mechanical treatment on the aggregative stability of latex and on consumption of coagulants in rubber recovery

Вережников, В. Н.; Nikulin, S. S.; Zorina, Anna V.; Ermolaeva, A. K.; Kretinina, N. I.

doi:10.1134/s1070427216100153

Cited by 3 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Введение. Выпуск синтетических эмульсионных каучуков и латексов неуклонно возрастает, что обосновано широким применением их при изготовлении шинной и резинотехнической продукции, выпуске композиционных материалов различного назначения [1][2][3][4][5][6][7]. Совершенствование технологии их производства, внедрение нового аппаратурного оформления, инициирующих и коагулирующих систем позволяет интенсифицировать процесс, повысить производительность, снизить материальные и энергетические затраты.…”

unclassified

“…Анализ имеющихся литературных данных показал отсутствие сведений о применении в технологии выделения каучука из латекса в качестве коагулянтов солей на основе d-металлов 4 Теоретические и экспериментальные исследования указывают на то, что в системе реализуется нейтрализационный механизм коагуляции за счет химического взаимодействия анионов эмульгатора с солями d-металлов 4-го периода периодической системы Д.М. Менделеева с образованием ионно-солевого комплекса [14].…”

unclassified

See 1 more Smart Citation

THE USE OF SALTS OF D-METALS OF THE 4th PERIOD AS COAGULANTS IN THE PRODUCTION TECHNOLOGY OF EMULSION RUBBERS

Власова¹,

Пугачева²,

Nikulin³

2019

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

View full text Add to dashboard Cite

Currently, much attention is paid to improving the technology of rubbers obtained by emulsion polymerization. The stage of isolation of rubber from latex is one of the problematic stages of this production. The development of more advanced coagulating systems remains relevant. For the first time, the possibility of using d-metal salts of the fourth period of the periodic table of Mendeleev’s salts as coagulants in rubber isolation is considered: chloride of zinc, nickel and cobalt. The influence of the consumption of these salts on the completeness of rubber isolation is investigated, the properties of rubbers are estimated. It is found that zinc chloride has the best coagulating ability. The formation of insoluble complex compounds between the coagulating agent and surfactants of the latex system is established. It is revealed that the acidification of the coagulating system leads to the release of higher carboxylic acids in free form and the formation of sulfuric salts of zinc, cobalt and nickel, which remain in the aqueous phase (serum). The presence of these salts in the serum allows its usage in the technological process of emulsion rubbers production for the preparation of aqueous solutions of chlorides of these salts, as well as acidifying agent (sulfuric acid). The positive outcome of the considered issues contributes to the solution of a number of environmental problems. The studied rubber mixtures and vulcanizates prepared on the basis of experimental rubbers meet the regulatory requirements.

show abstract

unclassified

THE USE OF SALTS OF D-METALS OF THE 4th PERIOD AS COAGULANTS IN THE PRODUCTION TECHNOLOGY OF EMULSION RUBBERS

Власова¹,

Пугачева²,

Nikulin³

2019

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

View full text Add to dashboard Cite

show abstract

Prospect of using beet molasses in the production of synthetic rubbers

Nikulina¹,

Bulatetskaya

Nikulin

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The production of high-molecular compounds requires improvement in manufacturing technology. Promising instrumentation of technological processes, new raw materials are being introduced, that in some cases makes it possible to improve the composite materials, use valuable hydrocarbon raw materials more fully and efficiently, and reduce the pressure on the environmental. All this applies to the production of synthetic rubbers. It is important to select new coagulating systems used in the technology of rubber separation from latex, since the coagulation stage is one of the most material-intensive and energy-intensive and problematic from an environmental perspective. In this paper, we studied the possibility of using a beet-sugar production by-product - beet molasses - in the technology for producing styrene-butadiene rubber of the SKS-30 ARK brand to reduce the aggregative stability of latex systems. The completeness of rubber separation was achieved at consumption of 200 kg / t and sulfuric acid consumption of 15 kg / t of rubber. In this case, the pH of the system increased from 3 to 5.5. Increasing the consumption of sulfuric acid to 40 kg / t of rubber allowed reducing the consumption of molasses to 90 kg / t of rubber and stabilizing the acidity of the coagulated system. Synergism in the action of these components was established for the first time and allowed reducing the consumption of coagulating agent by 2–3 times. Synergism of these components was first established and allowed reducing the consumption of a coagulating agent by a factor of 2–3. Based on the rubber obtained, rubber mixtures were prepared using standard components and vulcanized. Rubber based on SKS-30 ARK meets the requirements.

show abstract

Effect of Nanodispersed Carbon Black on the Aggregative Stability of Butadiene–Styrene Latex in Liquid-Phase Filling in an Ultrasonic Field

Korchagin,

Protasov,

Kiselev

2023

Russ J Appl Chem

View full text Add to dashboard Cite

Effect of mechanical treatment on the aggregative stability of latex and on consumption of coagulants in rubber recovery

Cited by 3 publications

References 0 publications

THE USE OF SALTS OF D-METALS OF THE 4th PERIOD AS COAGULANTS IN THE PRODUCTION TECHNOLOGY OF EMULSION RUBBERS

THE USE OF SALTS OF D-METALS OF THE 4th PERIOD AS COAGULANTS IN THE PRODUCTION TECHNOLOGY OF EMULSION RUBBERS

Prospect of using beet molasses in the production of synthetic rubbers

Effect of Nanodispersed Carbon Black on the Aggregative Stability of Butadiene–Styrene Latex in Liquid-Phase Filling in an Ultrasonic Field

Contact Info

Product

Resources

About