The present study reports the investigation on the effect of hydroxyl value on the physical and mechanical properties of polyurethane based on Hydroxyl-Terminated Polybutadiene (HTPB)/Isophorone diisocyanate (IPDI). The polyurethane was prepared by three kinds of HTPB with various hydroxyl value; 0.68 mmol g−1 (for PU-GA), 0.76 mmol g−1 (for PU-GB), and 0.91 mmol g−1 (for PU-GC). The results of the viscosity build-up observation show that PU GA and PU-GB has a slow increase in viscosity and plays a role in extending the pot-life of HTPB-based composites. pot life of HTPB-based composites. Fourier-Transform Infra-Red spectroscopy (FT-IR) was used to determine the composition. It was identified that PU-GA, PU-GB, and PU-GC have a similar profile of the IR spectrum. The presence of –NH, C=O, -CN and –C-O-C peaks was found at about 3340 cm−1, 1711 cm−1, 1510 cm−1 and 1225 cm−1 respectively. PU-GA achieve the best mechanical properties with tensile strength, elongation, and Modulus Young at about 0.48 MPa, 109.66 %, and 1.02 MPa respectively. One-way Anova test was carried out and found that the density was significantly different (p<0.05). The lowest density was achieved by PU-GA of 0.915 kg cm−3.


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    Title :

    HTPB/IPDI-based polyurethane: Effect of hydroxyl value on the physical and mechanical properties



    Conference:

    THE 9TH INTERNATIONAL SEMINAR ON AEROSPACE SCIENCE AND TECHNOLOGY – ISAST 2022 ; 2022 ; Bogor, Indonesia


    Published in:

    Publication date :

    2023-12-11


    Size :

    7 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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