Increase Heat Conductivity of Bladder and Calculate its Effect on Temperature Profile of the Tire in the Curing Process

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SHIVA MEHDI; Lakhi Mohammad; Soleymani Robat Ahmad

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Journal: APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING Year:2019 | Volume:3 | Issue:3 Page(s): 93-105

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Title

Increase Heat Conductivity of Bladder and Calculate its Effect on Temperature Profile of the Tire in the Curing Process

Author(s)

SHIVA MEHDI | Lakhi Mohammad | Soleymani Robat Ahmad | Issue Writer Certificate

Keywords

Bladder

Non-isothermal curing

Heat diffusivity

coefficient

Temperature-time history

Alumina

Tyre tread

Abstract

Research subject: Bladder is a rubber part used in tyre curing process. Increasing the thermal conductivity of this rubber piece is important for the purpose of reducing the final tyre price through reducing the tyre curing time. In this study, the use of a powder containing Alumina and aluminum sulfate on thermal conductivity of carbon black filled butyl rubber used in tyre curing Bladder was investigated. Research approach: The above filler was added to the Bladder mixture by 1. 5 %wt. The mixtures were prepared in internal mixer and their curing behavior, mechanical/aging properties and thermal conductivity were measured. To determine the thermal diffusion coefficient of the rubber, the specimen immersion method was used in oil bath and computer simulation of heat transfer using a guess and error approach. Also, the effect of this increase in thermal diffusion coefficient on the internal temperature changes of the tire was studied by selecting a simplified geometry from the tire profile in near-tire curing conditions and by simulating two-dimensional heat transfer behavior in ABAQUS software. Main results: It was observed that the thermal diffusion coefficient of the mixture increased from 1×10-7 m2/s to 1, 3×10-7 m2/s, without altering the mechanical and aging properties of the rubber compound. The simulation results also showed that the temperature of different tire points is affected by the increase in thermal conductivity of the Bladder. Therefore, there is a good potential for reducing tire curing time.

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APA: Copy

SHIVA, MEHDI, Lakhi, Mohammad, & Soleymani Robat, Ahmad. (2019). Increase Heat Conductivity of Bladder and Calculate its Effect on Temperature Profile of the Tire in the Curing Process. APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING, 3(3), 93-105. SID. https://sid.ir/paper/267815/en

Vancouver: Copy

SHIVA MEHDI, Lakhi Mohammad, Soleymani Robat Ahmad. Increase Heat Conductivity of Bladder and Calculate its Effect on Temperature Profile of the Tire in the Curing Process. APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING[Internet]. 2019;3(3):93-105. Available from: https://sid.ir/paper/267815/en

IEEE: Copy

MEHDI SHIVA, Mohammad Lakhi, and Ahmad Soleymani Robat, “Increase Heat Conductivity of Bladder and Calculate its Effect on Temperature Profile of the Tire in the Curing Process,” APPLIED RESEARCH IN CHEMICAL POLYMER ENGINEERING, vol. 3, no. 3, pp. 93–105, 2019, [Online]. Available: https://sid.ir/paper/267815/en

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