Viscosity Testing of HTPB Rubber Based Pre-binders

• Autorzy: Florczak B.
• Języki publikacji: EN

Abstrakty

EN

This paper presents the test results of viscosity changes, versus time and temperature, for the HTPB rubber based pre-binders used in the manufacture of heterogeneous solid rocket propellants (HSRP). A Brookfield HADV-II+PRO viscometer with a small sample adapter (SSA) and SC4-18 spindle, including a TC-550SD water bath, was used for the tests. The components of the prebinders tested were: HTPB-K domestic liquid synthetic rubber, R45M rubber, dioctyl adipate as the plasticizer, diisocyanate curing agents (DDI, IPDI) and various additives: triethanolamine (TEA), iron compounds, lecithin, glycerine and a solution of oxalic acid in glycerine, and difunctional aziridine amide. As a result of these tests, it was found that the additives have an influence on the viscosity versus time dependence. Moreover, the influence of temperature on the viscosity changes with time were compared for HTPB-K domestic rubber and R45M rubber based pre-binders. The experimental equations describing these changes were also determined.

Słowa kluczowe

EN

pre-binder; HTPB rubber; viscosity; heterogeneous solid rocket propellant

• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2014
• Tom: Vol. 11, no. 4
• Strony: 625--637
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Florczak B.

• Institute of Industrial Organic Chemistry, 6 Annopol St., 03-236 Warsaw, Poland

Bibliografia

• [1] Bandagar B.M., Krishnamurthy V.N., Mukundan T., Sharma K.C., Mathematical Modelling of Rheological Properties of Hydroxyl-terminated Polybutadiene Binder and Dioctyl Adipate Plasticizer, J. Appl. Polym. Sci., 2002, 85, 1002-1007.
• [2] Florczak B., Effect of Additives on Properties of Composite Solid Propellants (in Polish), Przem. Chem., 2012, 91(9),1858-1862.
• [3] Ducote M.E., Prevention of Unwanted Cure Catalysis in Isocyanate Cured Binders, US Patent 4 597 811, 1986.
• [4] Rodić V., Petrić M., The Effect of Additives on Solid Rocket Propellant Characteristics, Scientific Technical Review, 2004, LIV, 3-4, 9-13.
• [5] Mahanta A.K., Goyal M., Pathak Devendra D., Empirical Modelling of Chemoviscosity of Hydroxy Terminated Polybutadiene Based Solid Composite Propellant Slurry, Malaysian Polymer J., 2010, 5, 1-15.
• [6] Mahanta A.K., Dharmsaktu I., Pattnayak P.K., Rheological Behaviour of HTPBbased Composite Propellant: Effect of Temperature and Pot Life on Casting Rate, Defence Science J., 2007, 57, 435-442.
• [7] Florczak B., Stokowski P., Maranda A., Testing of Selected Binders of Composite Solid Propellants (in Polish), Przem. Chem., 2013, 92(6), 957-961.
• [8] Metzner A.B., Rheology of Suspensions in Polymeric Liquids, J. Rheology, 1985, 29, 739-775.
• [9] Chmielarek M., Skupiński W., Wieczorek Z., Dziura R., α,ω-Dihydroxypolybutadiene (HTPB). Properties and Production (in Polish), Przem. Chem., 2012, 91,1803-1807.
• [10] Tajima Y.A., Crozier D., Thermokinetic Modelling of an Epoxy Resin 1. Chemoviscosity, Polym. Eng. Sci., 1983, 23(4), 186-190.