PERUBAHAN KARAKTERISTIK PEMBENTUKAN POLIURETAN BERBASIS HTPB DAN TDI BERDASARKAN KOMPOSISI REAKSI (CHANGES IN THE FORMATION CHARACTERISTICS OF POLYURETHANE BASED ON HTPB AND TDI REACTION COMPOSITION)
DOI:
https://doi.org/10.30536/j.jtd.2016.v14.a2420Keywords:
cross-lingking, polymer, chain of polymer, swelling, HTPB, TDIAbstract
Polyurethane formation occurs through crosslinking of a reaction between the hydroxyl group (OH) of HTPB and isocyanate (NCO) of TDI. Polymer network formation reaction will be formed from the linear bond and a combination of crosslinking. At longer reaction, the polyurethane chains are formed increasingly long and followed by changes in the characteristics. If the reaction has been perfect then the polyurethane chain is straight and it will become more flexible.  This research aimed to obtain polyurethane as fuel binder, which was indispendable in solid composite propellant manufacturing.
Several samples of existing HTPB were made into a different composition of HTPB/TDI. The process used  reaction kinetics methods based on the composition in order to obtain the mechanical properties of polyurethane.  Average molecular weight, crosslinking density, hardness, and swelling were analized to determine the quality of polyurethane as fuel-binder. The analysis was a consideration for determining the most suitable fuel-binder composition. It was also to test the quality of experimental HTPB produced by LAPAN HTPB Laboratory (HTPBlocal) as an initial procedure in the propellant manufacturing. The analysis showed different results for each composition. The compositions that could be used as the fuel-binder for the formation of polyurethanes were: HTPBA at 7: 1; HTPBB at 9: 1; HTPBC at 8: 1; and HTPBD at 8: 1; whereas HTPBE could not be used because required advanced processing.
References
Bhattacharya, Amit; Rawlins, James W., dan Ray, Paramita, 2009. Polymer Grafting And Crosslinking, John Wiley & Sons, Inc., Hoboken, New Jersey.
Boo, Han; Yutau, Ju and Chang, Shengzhoiu, 2012. Investigation of Facture Creterion for HTPB Propellant, Advanced Materials Research, Vol. 591, Tran Tech Publication, Switzerland.
Delebecq, Etienne; Pascault, Jean-Pierre; Boutevin, Bernard dan Ganachaud, Francois, 2013. On the Versatility of Urethane/Urea Bonds: Reversibility, Blocked Isocyanate, and Non-isocyanate Polyurethane, Chem. Rev., 2013, 113 (1), 80–118.
Jain, S.R., Sekkar, dan Krinahmurti, V. N., 1993. Mechanical and Swelling Properties of HTPB Based Copolyurethan Networks, Journal of Applied Polymer Science 48(9):1515 – 1523.
Liu, Cheng-wu; Yang, Jian-hong; Wang; Xian-meng dan Ma, Yong-kang, 2016. The Damage Law of HTPB Propellant under Thermomechanical loading, Journal of Energetic Materials 34:1, 1-13.
Mahanta, Abhay K., dan Pathak, Devendra D., (2012). HTPB-Polyurethane: A Versatile Fuel Binder for Composite Solid Propellant, 229-262 pp. In Zafar, Fahmina dan Eram, Sharmin (ed.) Polyurethane, InTech, Kroasia.
Majoros, LI.; Dekeyser, Bernard; Hoogenboom, Richard; Fijten, WM., Martin; Geeraert, Jan; Haucourt, Nancy and Schubert S., Ulrich, 2009. Kinetic Study of the Polymerization of Aromatic Polyurethane Prepolymers by High Throughput Experimentation, Journal of Polymer Science Part A Polymer Chemistry 48(3), 570 – 580, Desember 2009.
Rosita, Geni, 2012. Pengaruh Komposisi HTPB–TDI Terhadap Propelan Mandiri, Proseding Kimia dalam Pembangunan Yogyakarta. ISSN: 0854 – 4778.
Sekkar, V., 2010. Polyurethan Based on Hydroxy Terminated Polybuthadiene: Modelling of Network Prameters and Correlation with Mchanical Properties, J of Polymer 41(18).
Sutton, GP. dan Biblarz, O., 2011. Rocket Propulsion Elements, 7th, John Wiley & Sons, New York, ISBN: 978-1-118-75365-1.
Tillet, Guillaume; Boutevin, Bernard dan Ameduri, Bruno, 2011. Chemical reactions of polymer crosslinking and post-crosslinking at room and medium temperature, Progress in Polymer Science 36 (2011) 191–217.
Villar, LD; Cicaglioni, Thiago; Diniz, MF; Takahashi, Marta Ferreira Koyama; Rezende, Luis Cláudio, 2011. Thermal Aging of HTPB/IPDI Based Polyurethane as A Function of NCO/OH Ratio, Materials Research. 2011; 14(3): 372-375.
Wang, Zhejun; Qian, Hongfu; Wang, Guan dan Huang, Quanzhang, 2015. Tensile Mechanical Propetion and Constitutive Model for HTPB Propellant Low Temerature and High Strain rate, Journal of Applied Polymer science Volume 132, Issue 24 June 20, 2015.
Wibowo HB, 2014. Peningkatan Sifat Mekanik Propelan Mandiri Berbasis Pengaruh bilangan OH Terhadap Kinerja Propelan, Prosiding SIPTEKGAN XVIII, 2014, Jakarta.
Wibowo, H.B, 2013. Kontrol Kualitas Bahan Baku Propelan, Indonesia Book Project, Jakarta.
Wibowo, HB., 2015. Pengaruh Gugus Hidroksil Sekunder Terhadap Sifat Mekanik Poliuretan Berbasis HTPB (Hidroxyl Terminated Polybutadiene), Jurnal Teknologi Dirgantara Vol.13 No.2 Desember 2015.
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