Contribution of filler–, filler interaction and filler aspect ratio in rubber reinforcement by silica and mica

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Roshanaei Hossein; Khodkar Fatemeh; ALIMARDANI MOHAMMAD

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Journal Paper

Paper Information

Journal: IRANIAN POLYMER JOURNAL Year:2020 | Volume:29 | Issue:10 Page(s): 901-909

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Information Journal Paper

Title

Contribution of filler–, filler interaction and filler aspect ratio in rubber reinforcement by silica and mica

Author(s)

Roshanaei Hossein | Khodkar Fatemeh | ALIMARDANI MOHAMMAD

Keywords

Silica

Mica

Carbon black

Bound rubber

Grip

Rolling resistance

Abstract

The reinforcement degree offered by silica as a spherical filler with low aspect ratio and high filler–, filler interaction was compared with mica as a platelet filler with higher aspect ratio and lower filler–, filler interaction. By replacing half of the carbon black with silica or mica in a typical formulation, rubber composites were prepared and their properties were evaluated under two conditions: In the first one, the impact of increasing the amount of a chemical surface modifier, namely silane TESPT (bis triethoxysilylpropyl tetrasulfide), was investigated and in the second one, the increasing amount of a physical modifier namely DPG (diphenyl guanidine) on the performance of the two fillers was explored. The resulting composites were subjected to physico-mechanical experiments including the bound rubber, tensile test, and the dynamic mechanical thermal analysis (DMTA). Results indicated that the greater amount of filler–, filler interaction resulting from the higher SiO2 and hydroxyl content in silica has a dominating role over the aspect ratio of mica which is then led to a remarkable difference in their bound rubber. However, the mica-containing composites were capable of competing with silica when the DPG was used. Nevertheless, the compound only containing carbon black with 19. 7 MPa of tensile strength and 24. 4 kgf/cm of tear strength showed the best mechanical properties among other fillers, and by replacing 30 phr carbon black, these properties decreased approximately 15 , ±, , 3%. Based on DMTA findings, promising data were obtained for the mica-reinforced rubbers with regard to the tire application.

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APA: Copy

Roshanaei, Hossein, Khodkar, Fatemeh, & ALIMARDANI, MOHAMMAD. (2020). Contribution of filler–, filler interaction and filler aspect ratio in rubber reinforcement by silica and mica. IRANIAN POLYMER JOURNAL (ENGLISH), 29(10), 901-909. SID. https://sid.ir/paper/1043349/en

Vancouver: Copy

Roshanaei Hossein, Khodkar Fatemeh, ALIMARDANI MOHAMMAD. Contribution of filler–, filler interaction and filler aspect ratio in rubber reinforcement by silica and mica. IRANIAN POLYMER JOURNAL (ENGLISH)[Internet]. 2020;29(10):901-909. Available from: https://sid.ir/paper/1043349/en

IEEE: Copy

Hossein Roshanaei, Fatemeh Khodkar, and MOHAMMAD ALIMARDANI, “Contribution of filler–, filler interaction and filler aspect ratio in rubber reinforcement by silica and mica,” IRANIAN POLYMER JOURNAL (ENGLISH), vol. 29, no. 10, pp. 901–909, 2020, [Online]. Available: https://sid.ir/paper/1043349/en

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