scholarly journals Influence of 1,4-butanediol on hydroxyl-terminated poly(butadiene) based composite propellant binder characteristics

2015 ◽  
Vol 65 (3) ◽  
pp. 55-60 ◽  
Author(s):  
Sasa Brzic ◽  
Vesna Rodic ◽  
Mirjana Dimic ◽  
Danica Simic ◽  
Ljiljana Jelisavac ◽  
...  
Keyword(s):  
Composite Propellant ◽  
Propellant Binder

scholarly journals RETIKULASI HIDROXYL TERMINATED POLUBUTADIENE (HTPB) MANDIRI DENGAN TOLUENE DIISOCIANATE (TDI) MEMBENTUK POLIURETAN SEBAGAI FUEL BINDER PROPELAN

2016 ◽  
Vol 14 (1) ◽  
pp. 51 ◽  
Author(s):  
Geni Rosita
Keyword(s):  
Molecular Weight ◽  
Average Molecular Weight ◽  
The Self ◽  
Air Bubbles ◽  
Gel Time ◽  
Composite Propellant ◽  
Binder Composition ◽  
Propellant Binder

LAPAN has successfully made HTPB independently. The next stage is to manufacture fuel-binder by reacting the HTPB with TDI. Stages of this test to get the gel time and the hardness that can qualify as a propellant binder. In this research HTPB:TDI reacted in some ratio, and HTPB are treated differently on the viscosity and average molecular weight. From some of the compositions of the reaction, which can be used as a propellant fuel binder are that meet several criteria, among others, there are no air bubbles, elastic, non-sticky for easy process, not hard and not brittle so that the propellant is not easy to crack. Observations during the gel time, which can be used as fuel binder composition propellants are HTPB:TDI are 6:1, 7:1, 8:1 and 9:1. Thus, the self-developed HTPB can already be used as a fuel binder in the manufacture of composite propellant. Abstrak LAPAN telah berhasil membuat HTPB secara mandiri. Tahapan berikutnya adalah melakukan pembuatan fuel binder dengan mereaksikan HTPB mandiri tersebut dengan TDI. Tahapan uji ini untuk mendapatkan gel time dan kekerasan yang dapat memenuhi syarat sebagai binder propelan. Pada penelitian ini dilakukan reaksi HTPB : TDI pada beberapa perbandingan, dan HTPB yang direaksikan berbeda pada viskositas dan berat molekul reratanya. Dari beberapa komposisi hasil reaksi, yang dapat digunakan sebagai fuel binder propelan adalah yang memenuhi beberapa kriteria, antara lain tidak ada gelembung udara, elastis, tidak lengket untuk memudahkan pencetakan, tidak keras dan tidak getas supaya propelan tidak mudah retak. Hasil pengamatan selama gel time, yang dapat digunakan sebagai fuel binder propelan adalah komposisi HTPB:TDI, 6:1, 7:1, 8:1 dan 9:1. Dengan demikian maka HTPB mandiri yang dikembangkan sudah dapat digunakan sebagai fuel binder pada pembuatan propelan komposit. 

scholarly journals RETIKULASI HIDROXYL TERMINATED POLUBUTADIENE (HTPB) MANDIRI DENGAN TOLUENE DIISOCIANATE (TDI) MEMBENTUK POLIURETAN SEBAGAI FUEL BINDER PROPELAN

2018 ◽  
Vol 14 (1) ◽  
pp. 51
Author(s):  
Geni Rosita
Keyword(s):  
Molecular Weight ◽  
Average Molecular Weight ◽  
The Self ◽  
Air Bubbles ◽  
Gel Time ◽  
Composite Propellant ◽  
Binder Composition ◽  
Propellant Binder

LAPAN has successfully made HTPB independently. The next stage is to manufacture fuelbinder by reacting the HTPB with TDI. Stages of this test to get the gel time and the hardness that can qualify as a propellant binder. In this research HTPB:TDI reacted in some ratio, and HTPB are treated differently on the viscosity and average molecular weight. From some of the compositions of the reaction, which can be used as a propellant fuel binder are that meet several criteria, among others, there are no air bubbles, elastic, non-sticky for easy process, not hard and not brittle so that the propellant is not easy to crack. Observations during the gel time, which can be used as fuel binder composition propellants are HTPB:TDI are 6:1, 7:1, 8:1 and 9:1. Thus, the self-developed HTPB can already be used as a fuel binder in the manufacture of composite propellant. ABSTRAKLAPAN telah berhasil membuat HTPB secara mandiri. Tahapan berikutnya adalah melakukan pembuatan fuel binder dengan mereaksikan HTPB mandiri tersebut dengan TDI. Tahapan uji ini untuk mendapatkan gel time dan kekerasan yang dapat memenuhi syarat sebagai binder propelan. Pada penelitian ini dilakukan reaksi HTPB : TDI pada beberapa perbandingan, dan HTPB yang direaksikan berbeda pada viskositas dan berat molekul reratanya. Dari beberapa komposisi hasil reaksi, yang dapat digunakan sebagai fuel binder propelan adalah yang memenuhi beberapa kriteria, antara lain tidak ada gelembung udara, elastis, tidak lengket untuk memudahkan pencetakan, tidak keras dan tidak getas supaya propelan tidak mudah retak. Hasil pengamatan selama gel time, yang dapat digunakan sebagai fuel binder propelan adalah komposisi HTPB:TDI, 6:1, 7:1, 8:1 dan 9:1. Dengan demikian maka HTPB mandiri yang dikembangkan sudah dapat digunakan sebagai fuel binder pada pembuatan propelan komposit. 

Combustion promotion and agglomeration reduction of the composite propellant using graphene

2021 ◽  
pp. 106988
Author(s):  
Lu Liu ◽  
Wen Ao ◽  
Zhan Wen ◽  
Yu Zhang ◽  
Xiang Lv ◽  
...  
Keyword(s):  
Composite Propellant

Composite Propellant Based on a New Nitrate Ester

2014 ◽  
Vol 39 (5) ◽  
pp. 684-688 ◽  
Author(s):  
David A. Reese ◽  
Steven F. Son ◽  
Lori J. Groven
Keyword(s):  
Composite Propellant ◽  
Nitrate Ester

Investigation of Composite Propellant Based on Hydroxyl Terminated Polybutadiene–1-Chloro-2,4-Dinitrobenzene

2013 ◽  
Vol 29 (6) ◽  
pp. 1343-1345 ◽  
Author(s):  
Mohamed Abdullah ◽  
F. Gholamian ◽  
M. R. Zareiee
Keyword(s):  
Composite Propellant

Preparation and curing behavior of high-stress solid propellant binder based on polydicyclopentadiene

2016 ◽  
Vol 29 (8) ◽  
pp. 931-936 ◽  
Author(s):  
Qili Sun ◽  
Song Ma ◽  
Zhen Ge ◽  
Yunjun Luo
Keyword(s):  
Ring Opening ◽  
Solid Propellant ◽  
First Generation ◽  
High Stress ◽  
Mechanical Analysis ◽  
Polymerization Reaction ◽  
Curing Behavior ◽  
Maximum Value ◽  
Cure Time ◽  
Propellant Binder

The ring-opening metathesis polymerization reaction of dicyclopentadiene (DCPD) was carried out using Grubbs first generation catalyst. Fourier transform infrared (FTIR), dynamic-thermo mechanical analysis (DMA), and Raman spectroscopy were used to investigate the curing behavior of this polymer. The FTIR results showed that DCPD had not cured completely and the polymers were composed of linear and cross-linked polydicyclopentadiene (PDCPD). The DMA test showed that the polymer possesses the glass transition temperature of linear PDCPD and cross-linked PDCPD, which had also proved the FTIR result. Furthermore, in order to explain the strange phenomenon that the band at 3004 cm−1 should have been detected in infrared spectrum, the Raman spectrum of PDCPD was applied to analyze the bonding mechanism of =C–H bond in the process of polymerization. Moreover, the real-time FTIR result cure formula showed that the cure degree increases first then constants trend with cure time of increasing, the cure degree reached the maximum value (96.76%) at 60°C for 192 h.

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