Vegetable waxes as modifiers of surface properties of polymeric composites

Abstract

We investigated the possibility of a complex use of vegetable waxes as modifiers of surface properties of polymeric composites. The wax samples were extracted from vegetable raw materials and then introduced into the rubber formulations used for the manufacture of the sidewalls of passenger tires and pigmented paints as a dispersant additive. Physical-mechanical properties of the obtained compositions were determined. The introduction of the investigated wax into serial rubber formulations does not impair the technical characteristics of the mixtures. The investigated waxes ensure a good protection of the elastomeric compositions against atmospheric aging. The waxy substances can be effectively used as additives that increase the ability of inorganic pigments to dispersion. The results showed that the introduction of the wax increased the hardness of the film coatings of paint-and-lacquer materials, the gloss of the prepared coatings being not substantially decreased.

Vegetable waxes as modifiers of surface properties of polymeric composites

“… ïðîöåñ³ åêñïëóàòàö³¿ ³ çáåð³ãàííÿ øèíè ï³ääàþòüñÿ âïëèâó àòìîñôåðè (îçîí, ñâ³òëî, âîëîãà, òåïëî), ùî ïðîÿâëÿºòüñÿ ó ðîçòð³ñêóâàíí³ ïîâåðõíåâèõ øàð³â ³ ïîã³ðøåííÿ ô³çèêî-ìåõàí-³÷íèõ âëàñòèâîñòåé ãóì. Îñíîâíîþ ïðè÷èíîþ àòìîñôåðíîãî ñòàð³ííÿ º îçîí, ÿêèé àêòèâíî âçàºìî䳺 ç ïîäâ³éíèìè çâ'ÿçêàìè ñèíòåòè÷íèõ êàó÷óê³â [5,6]. Ïîÿâà àòìîñôåðíîãî ðîçòð³ñêóâàííÿ íà áîêîâèíàõ øèí â åêñïëóàòàö³¿ ìîaeå â³äáóâàòèñÿ ï³çí³øå, îñê³ëüêè âîíè íàéá³ëüø äîñòóïí³ äî ¿¿ îçîíó.…”

Synthesis of Copolymer from 1,3,5-Trioxane and -Caprolactone Catalysed by Treated Bentonite as Eco-Catalyst

“…Rudnieva et al 26 showed the possibility of using waxy substances obtained via extraction from sunflower husk as antiozonants in rubber for tires production.…”

“…It contains fatsglycerides of higher unsaturated and saturated aliphatic acids (C 18 to 95 %) and waxesmixtures of high molecular mono-and diatomic alcohol ethers and saturated fatty acids from C 18 to C 32 (up to 28 wt %). 26,27 Based on the chemical composition and physical state (thick liquid), we assume that the organic component may be used as a non-petroleum technological additive of elastomeric compositions based on general-purpose rubbers. Therefore, the aim of this work was to study the effect of bioingredient (an organic component of the by-product after sunflower oil winterization -OSSO product) as a technological additive on the formation of technological, physico-mechanical, dynamic, and other properties of elastomeric compositions for tire production.…”