Instytut Przemyslu Organicznego

Warsaw, Poland

Instytut Przemyslu Organicznego

Warsaw, Poland

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Bialek A.,Instytut Przemyslu Organicznego | Kusmierek K.,Military University of Technology | Swiatkowski A.,Military University of Technology
Przemysl Chemiczny | Year: 2016

2,4-Dichlorophenoxyacetic (2,4-D) and 2-methyl-4-chlorophenoxyacetic (MCPA) acids were adsorbed from aq. solns. onto WG-12 granular activated C to study the adsorption kinetics and equils. MCPA was adsorbed faster than 2,4-D. The kinetics was fitted well to the pseudo-second order model. The expt. isotherms were well described by the Langmuir and Freundlich equations. The desorption of 2,4-D and MCPA with MeCN, MeOH and NaOH solns. was also studied. The best desorption efficiency was obsd. when MeCN was used.


A history of development and production of the title herbicide in Poland.


Florczak B.,Instytut Przemyslu Organicznego | Stokowski P.,Military University of Technology | Maranda A.,Military University of Technology
Przemysl Chemiczny | Year: 2013

Twenty-two hydroxyl-terminated polybutadiene-based binders for propellants were prepd. by addn. of dioctyladipate plasticizer, Fe2O3 nanoparticles, 2,2'-bis(ethylferrocenyl)propane (I) or Cu2Cr 2O5 additives and dilsocyanate curing agents to 3 rubbers and then studied for viscosity changes during storage at 65°C for 180 min. An increase in the binder viscosity was obsd. esp. when the binders contained I additive. The binders based on com. liq. rubbers were more stable than that based on a rubber produced under lab. conditions.


Maranda A.,Military University of Technology | Paszula J.,Military University of Technology | Nikolczuk K.,Instytut Przemyslu Organicznego | Wilk Z.,Instytut Przemyslu Organicznego
Przemysl Chemiczny | Year: 2011

Four emulsion explosives contg. aq. NaNO3 + NH 4NO3, oil + emulsifier, microspheres (0.8%) and varying NaCI amts. (up to 30%) were studied for work performance by Held method and by measurement of detonation velocity under field conditions. The detonation velocity, air blast wave overpressure and pulse d. decreased with increasing NaCI content in the explosives.


Zalewski R.,Warsaw University of Technology | Wolszakiewicz T.,Instytut Przemyslu Organicznego
Przemysl Chemiczny | Year: 2012

Five com. solid rocket propeiant were tested for tensiie strength to det. the force-elongation and stress-strain curves. The tensiie strength was 1.0-6.5 MPa and the elongation at rupture 0.062-0.94. No correlation between the tensile strength and combustion rate of the propelants was obsd.


Zalewski R.,Warsaw University of Technology | Wolszakiewicz T.,Instytut Przemyslu Organicznego | Bajkowski J.,Warsaw University of Technology
Przemysl Chemiczny | Year: 2012

Five com. solid rocket propellants were studied for mech. properties after continuous thermal and mech. loadings during long term storage. The mech. loading had a strong impact on a delicate and metastabie internal structure of the propelants. An uncontrolled Increase in the burning surface was observed both In ballistic tests and under normal operational conditions. Temp, relationships of Young modulus, braking strain and stress were detd.


A mixt. of hydroxyl-terminated poly butadiene, dioctyl adipate plasticizer, dimeryl diisocyanate curing agent, NH4CIO4, AI powder and 2, 2′-bis(ethylferrocenyl)propane, lecithin additive, glycerol soln, of oxalic acid, 1, 1′-isophthaloyl bis(2-methylaziridine) and (2, 2′-methylene-bis(6-tert-butyl-4-methylphenol) antioxidant was prepd. as heterogeneous propellant slurry and studied for viscosity as function of time and temp. The results were presented as logarithmic equations. The propellant slurry had a relatively long pot life time.


A review, with 29 refs., of literature data and author's own papers on rheolog., ballistic and technol. properties of solid rocket propeiiarńs based on NH4ClO4- a,ω-Dihydroxypolybutadiene, a,ω-dicarboxypolybutadiene, dioctyl adipate, isocyanates, ferrocenes, Fe2O3 butacene, catocene and Ai powder were used as additives.


Methods for testing the oxidizing substances for classifying them according to the transport regulations and new classification criteria connected with the methods were presented.


Florczak B.,Instytut Przemyslu Organicznego
Przemysl Chemiczny | Year: 2011

A review, with 47 refs., of oxidizers, nitrocompds. and binders used in composite solid propellants. For some 3-component propellants, the thermodynamic parameters were calcd. by using a computer program.

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