INFLUENCE OF THE HYDROXYL FUNCTIONALITY ON THE MECHANICAL PROPERTIES OF HYDROXY TERMINATED POLYBUTADIENE (HTPB) BASED POLYURETHANE ELASTOMERS

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SHAHIDZADEH M.; SHAGHAYEGHI TOOSI F.; ZAMANI M.

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Journal: JOURNAL OF ENERGETIC MATERIALS Year:2017 | Volume:11 | Issue:4 (32) Page(s): 35-45

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Title

INFLUENCE OF THE HYDROXYL FUNCTIONALITY ON THE MECHANICAL PROPERTIES OF HYDROXY TERMINATED POLYBUTADIENE (HTPB) BASED POLYURETHANE ELASTOMERS

Author(s)

SHAHIDZADEH M. | SHAGHAYEGHI TOOSI F. | ZAMANI M. | Issue Writer Certificate

Keywords

HTPBQ2

POLYURETHANEQ2

GEL POINTQ2

MECHANICAL PROPERTIESQ2

MOONEY-RIVILIN EQUATIONQ2

Abstract

In this research, effective functionality and functionality distribution of three types of HTPB sample are characterized and their reactions with toluene diisocyanate (TDI) have been investigated through the GEL POINT measurement. On the basis of GEL POINT studies concerning the formation of POLYURETHANE networks, the results showed that the effective functionality of three types of prepolymers increases in order HTPB1>HTPB2>HTPB3. Then, POLYURETHANE elastomers of three HTPB samples have been prepared and the tensile test has been performed. It was found that by increasing the effective functionality and CL/CE ratio of HTPB samples, the tensile of corresponding POLYURETHANE elastomer is increased while its strain is decreased. The results of tensile test have been modeled with MOONEY-RIVILIN EQUATION. Experimental data for Mooney-Rivilin constants were found and have shown that the C1 value of Money-Rivilin equation for POLYURETHANE elastomers based on HTPB1 and HTPB3 are greater than those based on HTPB2. Furthermore, it was found that trapped entanglements and more side chain in HTPB2 resin can be responsible for the high value of C2 in Money-Rivilin equation.Also viscoelastic properties of three types of elastomers are studied and have shown that the less functionality of HTPB samples give lower storage modulus and higher loss factor for corresponding POLYURETHANE elastomers.

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APA: Copy

SHAHIDZADEH, M., SHAGHAYEGHI TOOSI, F., & ZAMANI, M.. (2017). INFLUENCE OF THE HYDROXYL FUNCTIONALITY ON THE MECHANICAL PROPERTIES OF HYDROXY TERMINATED POLYBUTADIENE (HTPB) BASED POLYURETHANE ELASTOMERS. JOURNAL OF ENERGETIC MATERIALS, 11(4 (32)), 35-45. SID. https://sid.ir/paper/115315/en

Vancouver: Copy

SHAHIDZADEH M., SHAGHAYEGHI TOOSI F., ZAMANI M.. INFLUENCE OF THE HYDROXYL FUNCTIONALITY ON THE MECHANICAL PROPERTIES OF HYDROXY TERMINATED POLYBUTADIENE (HTPB) BASED POLYURETHANE ELASTOMERS. JOURNAL OF ENERGETIC MATERIALS[Internet]. 2017;11(4 (32)):35-45. Available from: https://sid.ir/paper/115315/en

IEEE: Copy

M. SHAHIDZADEH, F. SHAGHAYEGHI TOOSI, and M. ZAMANI, “INFLUENCE OF THE HYDROXYL FUNCTIONALITY ON THE MECHANICAL PROPERTIES OF HYDROXY TERMINATED POLYBUTADIENE (HTPB) BASED POLYURETHANE ELASTOMERS,” JOURNAL OF ENERGETIC MATERIALS, vol. 11, no. 4 (32), pp. 35–45, 2017, [Online]. Available: https://sid.ir/paper/115315/en

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