Thermophysical properties of butyl rubber loaded with different types of carbon black

The subject of the study were samples of channel technical carbon K354, furnace technical carbon N121 and experimental – based on TUN121, oxidized with active forms of oxygen. Samples of carbon black were studied in the composition of a rubber mixture based on BK 1675N butyl rubber. The purpose of this study was to determine the possibility of using oxidized technical carbon N121 in fillers of rubber based on butyl rubber, instead of carbon black K354. The physicochemical properties of the samples of technical carbon under study, the results of physical and mechanical tests, and the gas permeability tests of rubber mixtures filled with the samples under study are presented. A conclusion is made about the possibility of replacing channel technical carbon K354 with furnace black carbon N121 oxidized with 30% hydrogen peroxide.

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A Study on Carbon Electro-Conductive Filler for the Epoxy Conductive Coating

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.291-294.41 ◽

2011 ◽

Vol 291-294 ◽

pp. 41-46

Author(s):

Bing Li ◽

Yan Hong Li ◽

Wen Xing Chen

Keyword(s):

Carbon Black ◽

Titanium Oxide ◽

Epoxy Resins ◽

Conductive Filler ◽

Resistance Rate ◽

Conductive Coating ◽

Different Types ◽

Optimal Mix ◽

Oil Tank ◽

Experiment Analysis

To ensure the use of oil tank safely, it is necessary that the conductive coating was used in inner oil tank. This paper concentrates on a study of the electrical properties (surface resistance rate) of epoxy resins filled with different types of carbon pigments, such as colloid graphite, carbon black and mixture of colloid graphite/carbon black, as well as on the investigation of some mechanical properties, appearance and morphology .To produce a light grey and conductive coating, titanium oxide and carbon electro-conductive pigments were investigated in this article. The objective of the experiment therefore was to choose the optimal electro-conductive filler and determine the optimal mix ratio of colloid graphite/ carbon black and titanium oxide /colloid graphite and titanium oxide /mixable electro-conductive filler. From the experiment analysis, it was found that the optimized colloid graphite and carbon black mix ratio is 3:1; the optimized titanium oxide and colloid graphite mix ratio is 1:1; the optimized titanium oxide and mixable electro-conductive filler mix ratio is 8:1. In terms of resistance rate and color, we may arrive at the conclusion that 15μm colloid graphite as the optimized electro- conductive pigments and the optimal mix ratio of titanium oxide /colloid graphite is 1:1.

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Mixing and Comparative Properties of NR Compounds Filled with Different Types of Reinforcing Fillers

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.266.172 ◽

2017 ◽

Vol 266 ◽

pp. 172-176

Author(s):

Pattarawadee Maijan ◽

Nitinart Saetung ◽

Wisut Kaewsakul

Keyword(s):

Carbon Black ◽

Silica Surface ◽

High Viscosity ◽

Cure Rate ◽

Modified Silica ◽

Reinforcing Fillers ◽

Silane Coupling ◽

Different Types ◽

Cure Time

Mixing behaviors of the compounds filled with different reinforcing fillers were studied in correlation with compound and vulcanizate properties. Four filler systems were used including: 1) silica plus small amount of silane coupling agent; 2) carbon black; 3) pre-modified silica; and 4) silica+silane-carbon black mixed one. The results have shown that silica provides longer optimum cure time and shorter cure rate than carbon black due to accelerator adsorption on silica surface. In addition, owing to highly polar nature on silica surface the silica-based compounds show rather high viscosity, attributed to stronger filler-filler interaction as can be confirmed by Payne effect and reinforcement index. However, the commercial surface treatment or pre-modified form of silica shows superior properties than in-situ modification of silica by silane during mixing, while it gives comparable properties to carbon black-based compound. Tensile properties of vulcanizates show a good correlation with the basic properties of their compounds.

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Characterization of hybrid fillers based on carbon black of different types obtained by impregnation

Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications ◽

10.1177/1464420715602141 ◽

2015 ◽

Vol 231 (7) ◽

pp. 584-599 ◽

Cited By ~ 2

Author(s):

Ahmed A Al-Ghamdi ◽

Omar A Al-Hartomy ◽

Falleh R Al-Solamy ◽

Nikolay Dishovsky ◽

Petrunka Malinova ◽

...

Keyword(s):

Carbon Black ◽

Inductively Coupled Plasma ◽

Total Pore Volume ◽

Silica Content ◽

Dual Phase ◽

Hybrid Filler ◽

Average Pore ◽

Hybrid Fillers ◽

Different Types ◽

Two Phases

The paper presents the investigations on obtaining dual phase fillers with preset silica content running a successful impregnation of two completely different types of conventional carbon black with silicasol. The hybrid fillers studied were characterized by atomic absorption spectroscopy and inductively coupled plasma–optical emission spectroscopy. The total pore volume, the average pore diameter, the specific surface area, the oil absorption number, and iodine adsorption of the fillers were also investigated. The distribution of both phases within the hybrid filler obtained and their interpenetration were investigated with scanning transmission electron microscopy-energy dispersive X-ray spectroscopy. The hybrid products obtained were investigated as reinforcing fillers of natural rubber-based composites. The results obtained show that the suggested impregnation with silicasol of conventional carbon black is a perspective method for preparation of carbon-silica dual phase fillers. The method provides an easy control over the quantitative ratio between the two phases. The fillers thus prepared do not change significantly the curing and mechanical characteristics of the vulcanizates, but improve their thermal aging resistance. The isolation of the carbon black aggregates by the silica phase, and the interpenetration of the two phases is a prerequisite to obtain elastomer composites of good mechanical and microwave properties suitable for producing of microwave shielding devices.

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Quantitative Determination of the Microstructure and Composition of Crosslinked Rubber Blends

Rubber Chemistry and Technology ◽

10.5254/1.3538427 ◽

1997 ◽

Vol 70 (2) ◽

pp. 222-230 ◽

Cited By ~ 3

Author(s):

Emma Thorn-Csányi ◽

Hans-Detlef Luginsland

Keyword(s):

Carbon Black ◽

Quantitative Determination ◽

Length Distribution ◽

Polymer Degradation ◽

Mineral Oil ◽

Sequence Length ◽

Analytic Method ◽

Rubber Blends ◽

Different Types

Abstract Intermolecular metathetic polymer degradation opens up an analytic method to identify the quality and quantity of the components in blends of different types of rubber even if they are crosslinked and filled with carbon black, mineral oil, etc.. Furthermore the amount of soluble and insoluble additives can be determined. Moreover, metathetic degradation allows for determination of detailed information about the chemical microstructure (e.g. sequence length distribution of 1,2-butadiene and styrene units) of the rubbers used. This method is suitable for analysis of rubber components in tires.

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