Comparing Hydroxyl Terminated Polybutadiene and Acrylonitrile Butadiene Styrene as Hybrid Rocket Fuels

Acrylonitrilebutadiene-styrene thermoplastic, widely mass-produced for noncombustion applications including household plumbing and structural materials, is evaluated and compared with hydroxyl-terminated polybutadiene as a potential fuel for hybrid rocket motors. Acrylonitrilebutadiene-styrene has several mechanical properties, including its ability to be fabricated into a wide variety of shapes using fused deposition modeling, which are very attractive as a potential hybrid rocket fuel. The acrylonitrilebutadiene-styrene grains were fabricated using fused deposition modeling from existing rapid-prototyping stock materials composed of 50∶43∶7 butadiene, acrylonitrile, and styrene mole fractions. The acrylonitrilebutadiene-styrene grains were burned with nitrous oxide as the matching oxidizer and compared for performance and consistency against fuel grains of equal size cast from hydroxyl-terminated polybutadiene and burned with nitrous oxide. Test results demonstrate a higher burn-to-burn consistency for ...

[1]  Stephen A. Whitmore,et al.  Engineering Model for Self-Pressurizing Saturated-N2O-Propellant Feed Systems , 2010 .

[2]  Stephen A. Whitmore,et al.  Correlation of Hybrid Rocket Propellant Regression Measurements with Enthalpy-Balance Model Predictions , 2007 .

[3]  Stephen A. Whitmore,et al.  High Regression Rate Hybrid Rocket Fuel Grains with Helical Port Structures , 2014 .

[4]  Greg Zilliac,et al.  Development of Scalable Space-Time Averaged Regression Rate Expressions for Hybrid Rockets , 2005 .

[5]  D. V. Krevelen,et al.  Erratum: Estimation of the free enthalpy (Gibbs free energy) of formation of organic compounds from group contributions)☆ , 1952 .

[6]  Sanford Gordon,et al.  Computer program for calculation of complex chemical equilibrium compositions , 1972 .

[7]  Kenneth K. Kuo,et al.  Fundamental phenomena on fuel decomposition and boundary-layer combustion processes with applications to hybrid rocket motors , 1994 .

[8]  Stephen A. Whitmore,et al.  Maneuvering and Gravity Offset Flight Controls for an Extraterrestrial Surface Landing Research Vehicle , 2010 .

[9]  Kenneth K. Kuo,et al.  Fuel decomposition and boundary-layer combustion processes of hybrid rocket motors , 1995 .

[10]  Fred S Blomshield,et al.  Lessons Learned In Solid Rocket Combustion Instability , 2007 .

[11]  Paul Lu,et al.  Advantages of Rapid Prototyping for Hybrid Rocket Motor Fuel Grain Fabrication , 2011 .

[12]  Kannalath Krishnan Rajesh.  Thrust Modulation in a Nitrous Oxide/Hydroxyl-Terminated Polybutadiene Hybrid Rocket Motor , 2006 .

[13]  J. Panagiotou.  A Methodology for Flammability Diagrams , 2004 .

[14]  E. Prosen,et al.  Heats of combustion, formation, and insomerization of ten C4 hydrocarbons , 1951 .

[15]  N. Wingborg.  Increasing the tensile strength of HTPB with different isocyanates and chain extenders , 2002 .

[16]  D. W. Van Krevelen.  Chapter 20 – Thermochemical Properties , 2009 .

[17]  Stephen A. Whitmore,et al.  Development of a Power-Efficient, Restart-Capable Arc Ignitor for Hybrid Rockets , 2015 .

[18]  James R. Wilson,et al.  Pyrolysis of Acrylonitrile-Butadiene-Styrene ABS Under High Heat Flux Conditions , 2014 .

[19]  H. Seifert,et al.  Rocket Propulsion Elements , 1963 .

[20]  Richard E. Lyon,et al.  Heats of combustion of high temperature polymers , 2000 .

[21]  Sean D. Walker,et al.  High Regression Rate Hybrid Rocket Fuel Grains with Helical Port Structures , 2015 .

[22]  J. Baxendale,et al.  Kinetics and heats of copolymerization of acrylonitrile and methyl methacrylate , 1956 .

[23]  Brian J. Cantwell,et al.  Combustion of Liquefying Hybrid Propellants: Part 1, General Theory , 2002 .

[24]  H. S. Mukunda,et al.  Sandwich propellant combustion: Modeling and experimental comparison , 2002 .

[25]  R. N. Walters,et al.  Determination of the heats of gasification of polymers using differential scanning calorimetry , 2008 .

[26]  J. Anderson,et al.  Modern Compressible Flow: With Historical Perspective , 1982 .

[27]  Van Krevelen.  Properties of Polymers: Their Correlation with Chemical Structure; their Numerical Estimation and Prediction from Additive Group Contributions , 2009 .

[28]  S. Özkar,et al.  Ruthenium(III) ion-exchanged zeolite Y as highly active and reusable catalyst in decomposition of nitrous oxide to sole nitrogen and oxygen , 2014 .

[29]  E. Prosen,et al.  Heats of formation and combustion of 1,3-butadiene and styrene , 1945 .