EFFECT OF NANOCLAY ON MECHANICAL PROPERTIES AND ABLATION BEHAVIOR OF A NITRILE-BASED HEAT INSULATOR

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ARABGOL FATEMEH; KOKABI MEHRDAD; BAHRAMIAN AHMAD REZA

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Journal: Iranian Journal of Polymer Science and Technology Year:2013 | Volume:25 | Issue:6 (ISSUE NO. 122) Page(s): 450-458

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Title

EFFECT OF NANOCLAY ON MECHANICAL PROPERTIES AND ABLATION BEHAVIOR OF A NITRILE-BASED HEAT INSULATOR

Author(s)

ARABGOL FATEMEH | KOKABI MEHRDAD | BAHRAMIAN AHMAD REZA | Issue Writer Certificate

Keywords

HEAT INSULATORQ1

ABLATIONQ2

NANOCOMPOSITEQ2

NBRQ3

HIGH TEMPERATUREQ2

Abstract

Thermal insulation of rocket motor chamber is one of the most important functions of elastomeric ablative material. Combustion of solid rocket motor propellant produces turbulent media containing gases with a velocity more than 1000 m/s, temperature and pressure more than 3000oC and 10 MPa, respectively, which destroys all metallic alloys. Elastomeric NANOCOMPOSITE HEAT INSULATORs are more attractive subjects in comparison to their non-elastomeric counterparts, due to their excellent thermal stresses and larger deformation bearing capacity. Nitrile rubber with high thermal properties is a proper candidate in such applications. Development in ABLATION performance of these heat shields is considered as an important challenge nowadays. A few works have been recently carried out using organoclay to enhance the ABLATION and mechanical properties of HEAT INSULATORs. In this work, an elastomeric HEAT INSULATOR with superior ablative and mechanical properties was presented using nanotechnology. The results showed that an elastomeric NANOCOMPOSITE HEAT INSULATOR containing 15 wt% organoclay exhibits superior characteristics compared to its composite counterpart such as: 46% more tensile strength, 60% more elongationat- break, 1.7 times higher modulus (at 100% strain), 62% higher “insulating index number” and 36% lower mass ABLATION and erosion rates under a standard test with a heat flux of 2500 kW/m2 for 15 s.

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APA: Copy

ARABGOL, FATEMEH, KOKABI, MEHRDAD, & BAHRAMIAN, AHMAD REZA. (2013). EFFECT OF NANOCLAY ON MECHANICAL PROPERTIES AND ABLATION BEHAVIOR OF A NITRILE-BASED HEAT INSULATOR. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 25(6 (ISSUE NO. 122)), 450-458. SID. https://sid.ir/paper/6110/en

Vancouver: Copy

ARABGOL FATEMEH, KOKABI MEHRDAD, BAHRAMIAN AHMAD REZA. EFFECT OF NANOCLAY ON MECHANICAL PROPERTIES AND ABLATION BEHAVIOR OF A NITRILE-BASED HEAT INSULATOR. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2013;25(6 (ISSUE NO. 122)):450-458. Available from: https://sid.ir/paper/6110/en

IEEE: Copy

FATEMEH ARABGOL, MEHRDAD KOKABI, and AHMAD REZA BAHRAMIAN, “EFFECT OF NANOCLAY ON MECHANICAL PROPERTIES AND ABLATION BEHAVIOR OF A NITRILE-BASED HEAT INSULATOR,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 25, no. 6 (ISSUE NO. 122), pp. 450–458, 2013, [Online]. Available: https://sid.ir/paper/6110/en

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