The effect of modified Cu(II) kaolinite on interactions with rubberizing components

Feriancová, Andrea; Pajtášová, Mariana; Pecušová, Beáta; Ondrušová, Darina

doi:10.1016/j.clay.2019.105313

Cited by 7 publications

(5 citation statements)

References 41 publications

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“…The ATR spectra of KKA-Cu, KKA-Co, KKA-Ni samples show the presence of new absorption bands at 1560 cm -1 and 1408-1420 cm -1 which are related to the asymmetric and symmetric stretching vibrations of ν as -) and ν s (COO -) carboxylate group [41,42]. Herein, the difference between the ν s (COO -) and ν as (COO -) is 151 cm -1 (for KKA-Cu) and 140 cm -1 (for KKA-Co, KKA-Ni) relates to the formation of the complex in the modified forms of kaolinite [35,42]. The stretching vibration of ν(Si-O) can be seen at 1025 cm -1 .…”

Section: Thermal Agingmentioning

confidence: 85%

“…According to literature data, this value confirmed the assumption that a new complex with a lamellar structure was created as a result of kaolinite modification. No significant changes were observed in the basic structure spacing in the layered kaolinite structure [35,41,43].…”

Section: Thermal Agingmentioning

confidence: 87%

“…Feriancová et al [35] modified commercial kaolinite with treatment by copper acetate in presence of NaOH. Using this method, a copper complex was formed in the structure of kaolinite.…”

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confidence: 99%

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Effect of kaolinite modified with Co(II), Cu(II) and Ni(II) salts on selected properties of tread rubber blend

Pajtášová,

Pecušová,

Ondrušová

et al. 2024

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Effect of kaolinite modified with Cu(II), Co(II) and Ni(II) salts as a partial replacement for carbon black (1 and 8 phr) on the properties of the model tread rubber blend was examined. The blends were prepared in a two-stage process in a Brabender mixer at temperatures of 120°C and 100°C, respectively, with a constant mixing speed of 50 rpm. FT-IR confirmed the formation of copper hydroxyacetate monohydrate complex, which may indicate chemical interactions between rubber components and modified kaolinite. The filler improved technological parameters, tensile properties and hardness. Resistance to thermal aging has also increased.

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Section: Thermal Agingmentioning

confidence: 85%

Section: Thermal Agingmentioning

confidence: 87%

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Effect of kaolinite modified with Co(II), Cu(II) and Ni(II) salts on selected properties of tread rubber blend

Pajtášová,

Pecušová,

Ondrušová

et al. 2024

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“…The absorption bands at 1024 and 1113 cm -1 correspond to the valence vibration of tetrahedral Si-O cations. The bending vibrations of the Si-O group correspond to the absorption band at 456 and at 529cm -1 [14,15]. In the IR spectrum of the modified kaolin, there was a slight shift of the valence and deformation vibrations of the Si-O groups, compared to the sample of unmodified kaolin.…”

Section: Characterization Of Kaolin Samplesmentioning

confidence: 95%

Modification of the Filler based on Kaolin and its Use in the Polymer Composites

Feriancová¹,

Dubec²,

Pagáčová³

et al. 2022

MATEC Web Conf.

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Light mineral fillers are the natural inorganic materials of various compositions that have been used in a practical way since the beginning of the rubber industrial processing. Depending on the application, the natural kaolin is often modified by physical processes or by chemical processes (pillaring, adsorption, intercalation, functionalization, acid activation, etc.). It is important to modify kaolin due to improvement of its properties in order to adsorb the inorganic as well as organic molecules. In the introduced study, kaolin from Kaznějov deposit was modified by potassium acetate or dimethylsulphoxide and subsequently functionalized by accelerator dibenzothiazyldisulphide and its last modification was performed by silane treatment. Different techniques, such as the thermal (DTA) and spectral (FTIR) analysis were used to characterize modified kaolin samples. The main aim of the article is to observe the influence of modified kaolin forms on the physico-mechanical properties and structural changes of rubber mixtures. Combined with the carbon black, the given modified kaolin was mixed into a rubber blend in a particular ratio, which was5, 10, 24 phr. The effect of the modified kaolinite on the cure characteristics (minimum torque – ML, maximum torque – MH, optimal cure time – t90, scorch time ts2) and mechanical properties (tensile strength at break – TSb, elongation at break – Eb and hardness)in sulphur-cured rubber composites was investigated. In images from a scanning electron microscope (SEM), we observed the incorporation of modified forms of kaolin into the matrix of the rubber mixture.

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“…The current trend is based on the selection of various alternative fillers, such as suitable clay minerals, their modified forms, as well as clay rocks, including the fillers based on various polymers of natural or synthetic materials. Furthermore, the waste from any production process can fulfil the required and suitable properties to be used in the function of the fillers [11][12][13][14][15][16][17][18][19]. This work mainly deals with a partial replacement of commercial carbon black filler by selected alternative fillers, including the modification of prepared vulcanizates of selected physico-chemical parameters.…”

Section: Introductionmentioning

confidence: 99%

The Influence of Selected Physico-Chemical Factors on Physico-Mechanical Properties of Studied Vulcanizates

et al. 2022

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The focus of the presented study was set on the influence of physico-chemical factors on the physico-mechanical properties of the investigated vulcanizates containing carbon black filler substitution by mixing alternative fillers. Relating to the alternative partial substituents of fillers, the fine fractions of bentonite, polylactide, polypropylene and coffee grounds have been chosen. The prepared vulcanizates were exposed to various environment conditions which were based namely on DCSBD, plasma discharge (Diffuse Coplanar Surface Barrier Discharge), organic solvent and fungus extract of Piptoporus betulinus. The main objective of the study was to investigate the influence of the selected environment conditions on the physico -mechanical as well as dynamical and mechanical properties of the studied vulcanizates. The effect of chosen alternative fillers and physico-chemical factors on the physico-mechanical properties (elongation, tensile strength and hardness) was evaluated for the studied vulcanizates. Taking into account the chosen environment conditions, the viscoelastic behaviour of the prepared vulcanizates with alternative fillers and reference vulcanizate were evaluated on the basis of the results of the dynamical and mechanical analysis which was resulting from measurements. The measured results show that selected physico-chemical factors in combination with selected alternative fillers affect the physico-mechanical as well as dynamical and mechanical properties of the studied vulcanizates.

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The effect of modified Cu(II) kaolinite on interactions with rubberizing components

Cited by 7 publications

References 41 publications

Effect of kaolinite modified with Co(II), Cu(II) and Ni(II) salts on selected properties of tread rubber blend

Effect of kaolinite modified with Co(II), Cu(II) and Ni(II) salts on selected properties of tread rubber blend

Modification of the Filler based on Kaolin and its Use in the Polymer Composites

The Influence of Selected Physico-Chemical Factors on Physico-Mechanical Properties of Studied Vulcanizates

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