| Autor: |
Holub, L. S., Vashchenko, Yu. N., Andriianova, M. V. |
| Předmět: |
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| Zdroj: |
Issues of Chemistry & Chemical Technology / Voprosy Khimii & Khimicheskoi Tekhnologii; Mar2022, Vol. 7 Issue 2, p9-16, 8p |
| Abstrakt: |
One of the ways to improve the quality of elastomeric materials is to modify them with active compounds. As modifying additives in this work, the systems were considered which are based on sulfur-containing phenol-formaldehyde resins Octofor 10S and 101K together with an amine-containing compound produced by the interaction of ethanol amines with the methyl ester of fatty acids, the raw material being chicken fat. Study was carried out using model polymer compositions based on butadiene and styrene copolymer. Analysis of the complex of properties showed that it is effective to use 3–4 parts by weight of additives at the ratio of components 2:1. Mechanical mixture of components is inferior to the additive produced by the components fusion in this respect. Moreover, the dynamic strength of rubber is significantly increased. A significant reduction in the mechanical loss tangent was established in the composition with the use of Octofor 10S resin. That allows reducing heat formation at dynamic loads and increasing the service life of large articles, such as tyres. The patterns of the influence of modifiers on the complex of properties of elastomeric compositions are useful when choosing the direction of industrial application of the additives under consideration in the composition of rubber compounds. The addition of crushed vulcanizate treated with modifying additives was found to reduce the viscosity of rubber compounds as compared with the use of untreated vulcanizate; this decreases the energy consumption in the manufacture and processing of elastomeric compositions. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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