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Progress report - bonding of DATB - progress report

Description: DATB (diaminotrinitrobenzine) pressings were made in an effort to find the most suitable binder. After successfully pressing ball milled DATB at 110 C,it was found that normal DATB (fine powder) could also be hot pressed at this temperature and 20,000 psi. Bulk density might vary from batch to batch.
Date: August 1, 1958
Creator: Archibald, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design of a new liquid cell for shock experiments

Description: Controlled impact methodology has been used on a powdergun to obtain dynamic behavior properties of Tributyl Phosphate (TBP). A novel test methodology is used to provide extremely accurate equation of state data of the liquid. A thin aluminum plate used for confining the liquid also serves as a diagnostic to provide reshock states and subsequent release adiabats from the reshocked state. Polar polymer, polyvinylidene fluoride (PVDF) gauges and velocity interferometer system for any reflector (V… more
Date: November 22, 1999
Creator: Reinhart, W. D. & Chhabildas, L. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Interactions of Jet Fuels with Nitrile O-Rings: Petroleum-Derived versus Synthetic Fuels

Description: A transition from petroleum-derived jet fuels to blends with Fischer-Tropsch (F-T) fuels, and ultimately fully synthetic hydro-isomerized F-T fuels has raised concern about the fate of plasticizers in nitrile-butadiene rubber o-rings that are contacted by the fuels as this transition occurs. The partitioning of plasticizers and fuel molecules between nitrile o-rings and petroleum-derived, synthetic, and additized-synthetic jet fuels has been measured. Thermal desorption of o-rings soaked in the… more
Date: January 1, 2008
Creator: Gormley, R. J.; Link, D. D.; Baltrus, J. P. & Zandhuis, P. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Interactions of Jet Fuels with Nitrile O-Rings: Petroleum-Derived versus Synthetic Fuels

Description: A transition from petroleum~derived jet fuels to blends with Fischer-Tropsch (F~T) fuels, and ultimately fully synthetic hydro-isomerized F-T fuels has raised concern about the fate of plasticizers in nitrile-butadiene rubber a-rings that are contacted by the fuels as this transition occurs. The partitioning of plasticizers and fuel molecules between nitrile a-rings and petroleum-derived, synthetic, and additized-synthetic jet fuels has been measured. Thermal desorption of o-rings soaked in the… more
Date: January 1, 2009
Creator: Gormley, R. J.; Link, D. D.; Baltrus, J. P. & Zandhuis, P. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Clean, agile alternative binders, additives and plasticizers for propellant and explosive formulations

Description: As part of the Strategic Environmental Research and Development Program (SERDP) a clean, agile manufacturing of explosives, propellants and pyrotechniques (CANPEP) effort set about to identify new approaches to materials and processes for producing propellants, explosives and pyrotechniques (PEP). The RDX based explosive PBXN-109 and gun propellant M-43 were identified as candidates for which waste minimization and recycling modifications might be implemented in a short time frame. The binders,… more
Date: December 1, 1994
Creator: Hoffman, D. M.; Hawkins, T. W. & Lindsay, G. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ANFOL synthesis. [Quarterly report], April--June 1971

Description: A new method was developed for chlorination of 4,4-dinitropimelic acid with PCl{sub 5} using a Soxhlet extraction apparatus as the addition vessel. Acid used was that reclaimed from the purification of the crude acid chloride of 4,4-dinitropimelic acid supplied by LRL. Synthesis of FEFO plasticized AFNOL has been scaled up to a nominal 30-pound batch. Small batches and cure tests were run prior to the scaleup. Cure rate of the AFNOL system was followed by infrared spectrophotometry. The tempera… more
Date: December 31, 1971
Creator: Quinlin, W.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A parametric pressing study using a plastic-bonded explosive

Description: Pressed plastic-bonded explosives, PBXs, are commonly used by defense and private industry. PBX 9501 is composed of HMX crystals held together with a plastic binder 'softened' with plasticizers. The detonation behavior of any explosive is very dependent upon its density, with the desire to have a uniform, high density throughout the explosive component. A parametric study has been performed pressing PBX 9501 hydrostatically and uniaxially. The effects of several pressing parameters on the bulk … more
Date: January 1, 2002
Creator: Hayden, David J.; Maez, Leland R.; Olinger, Barton W. & Powell, Sandra J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The response of the HMX-based material PBXN-9 to thermal insults: thermal decomposition kinetics and morphological changes

Description: PBXN-9, an HMX-formulation, is thermally damaged and thermally decomposed in order to determine the morphological changes and decomposition kinetics that occur in the material after mild to moderate heating. The material and its constituents were decomposed using standard thermal analysis techniques (DSC and TGA) and the decomposition kinetics are reported using different kinetic models. Pressed parts and prill were thermally damaged, i.e. heated to temperatures that resulted in material change… more
Date: December 10, 2010
Creator: Glascoe, E. A.; Hsu, P. C.; Springer, H. K.; DeHaven, M. R.; Tan, N. & Turner, H. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Effects of temperature and pressure on the glass transitions of plastic bonded explosives

Description: Various plastic bonded explosives (PBXs) contain about 5-wt% polymer, plasticizer, and stabilizer as binder. The glass-transition temperature (T{sub g}) determines, in part, if the binder will reduce or increase the sensitivity of the PBX to impact. A soft binder reduces the impact sensitivity; however, too soft a binder compromises the mechanical strength below that desirable for dimensional stability. Glass transitions were measured by temperature modulated DSC for PBXs before and after press… more
Date: December 1998
Creator: Campbell, M. S.; Garcia, D. & Idar, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Field Derived Emission Factors For Formaldehyde and other Volatile Organic Compounds in FEMA Temporary Housing Units

Description: Sixteen previously occupied temporary housing units (THUs) were studied to assess emissions of volatile organic compounds. The whole trailer emission factors wereevaluated for 36 VOCs including formaldehyde. Indoor sampling was carried out in the THUs located in Purvis staging yard in Mississippi, USA. Indoor temperature andrelative humidity (RH) were also measured in all the trailers during sampling. Indoor temperatures were varied (increased or decreased) in a selection of THUs using theheati… more
Date: October 1, 2010
Creator: Parthasarathy, Srinandini; Maddalena, Randy L.; Russell, Marion L. & Apte, Michael G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ANALYSIS OF SOLVENT RECOVERED FROM WRIGHT INDUSTRIES, INCORPORATED TESTING

Description: Washington Savannah River Company (WSRC) began designing and building a Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) at the Savannah River Site (SRS) to process liquid waste for an interim period. The MCU Project Team conducted testing of the contactors, coalescers, and decanters at Wright Industries, Incorporated (WII) in Nashville, Tennessee. That testing used MCU solvent and simulated SRS dissolved salt. Because of the value of the solvent, the MCU Project wishes to recover it f… more
Date: January 11, 2007
Creator: Poirier, M; Thomas Peters, T; Fernando Fondeur, F & Samuel Fink, S
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interaction of water with epoxy.

Description: The chemistries of reactants, plasticizers, solvents and additives in an epoxy paint are discussed. Polyamide additives may play an important role in the absorption of molecular iodine by epoxy paints. It is recommended that the unsaturation of the polyamide additive in the epoxy cure be determined. Experimental studies of water absorption by epoxy resins are discussed. These studies show that absorption can disrupt hydrogen bonds among segments of the polymers and cause swelling of the polymer… more
Date: July 1, 2009
Creator: Powers, Dana Auburn
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanisms of formation of trace decomposition products in complex high explosive mixtures

Description: A significant concern in the nation`s stockpile surveillance program in prediction of the lifetimes of the high explosives (HE) and their components as the weapons age. The Department of Energy`s Core Surveillance and Enhanced Surveillance programs specifically target issues of degradation of HE, binders, and plastic-bonded explosives (PBX) for determination of component lifetimes and handling procedures. These material science topics are being addressed at the DOE national laboratories and pro… more
Date: March 1, 1999
Creator: Woodyard, Jsmrd D.; Burgess, Caroline E. & Rainwater, Kenneth A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Literature review of the lifetime of DOE materials: Aging of plastic bonded explosives and the explosives and polymers contained therein

Description: There are concerns about the lifetime of the nation`s stockpile of high explosives (HEs) and their components. The DOE`s Core Surveillance and Enhanced Surveillance programs specifically target degradation of HE, binders, and plastic-bonded explosives (PBXs) for determination of component lifetimes and handling procedures. The principal goal of this project is to identify the decomposition mechanisms of HEs, plasticizers, and plastic polymer binders resulting from exposure to ionizing radiation… more
Date: September 1, 1998
Creator: Burgess, Caroline E.; Woodyard, James D.; Rainwater, Ken A.; Lightfoot, J. Michael & Richardson, Benny R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Development of a new plasticizer for poly(ethylene oxide) based polymer electrolyte and the investigation of their ion-pair dissociation effect

Description: One approach to increasing the ionic conductivity of polymer electrolyte is to add plasticizers to the polymer-salt complexes . Recently, we have synthesized a new plasticizer, modified carbonate (MC3), by attaching three ethylene oxide units to the 4-position of ethylene carbonate. AC impedance studies showed that an ionic conductivity of 5{times}10{sup {minus}5} S cm{sup {minus}1} could be achieved at room temperature, by adding 50 wt % of MC3 into PEO-LiCF{sub 3}SO{sub 3} complex. This is tw… more
Date: August 1, 1994
Creator: Yang, X. Q.; Lee, H. S.; Hanson, L. L.; McBreen, J. & Okamoto, Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Measurement and estimated health risks of semivolatile organic compounds (PCBs, PAHs, pesticides, and phthalates) in ambient air at the Hanford Site

Description: Air samples for polychlorinated biphenyls (PCBs), chlorinated pesticides, phthalate plasticizers, and polycyclic aromatic hydrocarbons (PAHs) were collected at three Hanford Site locations (300-Area South Gate, southeast of 200-East Area, and a background location near Rattlesnake Springs). Samples were collected using high-volume air samplers equipped with a glass fiber filter and polyurethane foam plug sampling train. Target compounds were extracted from the sampling trains and analyzed using… more
Date: September 1, 1997
Creator: Patton, G. W.; Cooper, A. T.; Blanton, M. L.; Lefkovitz, L. F. & Gilfoil, T. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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New Polymer and Liquid Electrolytes for Lithium Batteries

Description: All non-aqueous lithium battery electrolytes are Lewis bases that interact with cations. Unlike water, they don't interact with anions. The result is a high degree of ion pairing and the formation of triplets and higher aggregates. This decreases the conductivity and the lithium ion transference and results in polarization losses in batteries. Approaches that have been used to increase ion dissociation in PEO based electrolytes are the use of salts with low lattice energy, the addition of polar… more
Date: March 29, 1999
Creator: McBreen, J.; Lee, H. S.; Yang, X. Q. & Sun, X.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Synthesis and Characterization of Network Single Ion Conductors(NSIC) Based On Comb-Branched Polyepoxide Ethers and LithiumBis(allylmalonato)borate

Description: Network single ion conductors (NSICs) based on comb-branch polyepoxide ethers and lithium bis(allylmalonato) borate have been synthesized and thoroughly characterized by means of ionic conductivity measurements, electrochemical impedance and by dynamic mechanical analysis (DMA). The materials have been tested as battery electrolytes by cycling in symmetrical Li/Li half cells and in Li/V{sub 6}O{sub 13} full cells in which the NSIC was used as both binder and electrolyte in the cathode electrode… more
Date: July 11, 2004
Creator: Sun, Xiao-Guang & Kerr, John B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Indoor Residential Chemical Exposures as Risk Factors for Asthmaand Allergy in Infants and Children: a Review

Description: Most research into effects of residential indoor air exposures on asthma and allergies has focused on exposures to biologic allergens, moisture and mold, endotoxin, or combustion byproducts. This paper briefly reviews reported findings on associations of asthma or allergy in infants or children with risk factors related to indoor chemical emissions from residential materials or surface coatings. Associations, some strong (e.g., odds ratios up to 13), were reported. The most frequently identifie… more
Date: March 1, 2006
Creator: Mendell, M. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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ALDEHYDE AND OTHER VOLATILE ORGANIC CHEMICAL EMISSIONS IN FOUR FEMA TEMPORARY HOUSING UNITS ? FINAL REPORT

Description: Four unoccupied FEMA temporary housing units (THUs) were studied to assess their indoor emissions of volatile organic compounds including formaldehyde. Measurement of whole-THU VOC and aldehyde emission factors (mu g h-1 per m2 of floor area) for each of the four THUs were made at FEMA's Purvis MS staging yard using a mass balance approach. Measurements were made in the morning, and again in the afternoon in each THU. Steady-state indoor formaldehyde concentrations ranged from 378 mu g m-3 (0.3… more
Date: May 4, 2008
Creator: Salazar, Olivia; Maddalena, Randy L.; Russell, Marion; Sullivan, Douglas P. & Apte, Michael G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CO2 Separation Using Thermally Optimized Membranes: A Comprehensive Project Report (2000 - 2007)

Description: This is a complete (Fiscal Years 2000–2006) collection of the Idaho National Laboratory’s (INL) research and development contributions to the project, “CO2 Separation Using Thermally Optimized Membranes.” The INL scientific contribution to the project has varied due to the fluctuations in funding from year to year. The focus of the project was polybenzimidazole (PBI) membranes and developing PBI compounds (both substitution and blends) that provide good film formation and gas separation membran… more
Date: March 1, 2008
Creator: Klaehn, J. R.; Orme, C. J.; Peterson, E. S.; Luther, T. A.; Jones, M. G. & Wertsching, A. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Continuous Isosorbide Production From Sorbitol Using Solid Acid Catalysis

Description: This is a final report for a project funded by the US Department of Agriculture and managed by the US Department of Energy. The Iowa Corn Promotion Board was the principal contracting entity for the grant. The Iowa Corn Promotion Board subcontracted with General Electric, Pacific Northwest National Lab and New Jersey Institute of Technology to conduct research in this project. The Iowa Corn Promotion Board and General Electric provided cost share for the project. The purpose of this diverse col… more
Date: September 29, 2006
Creator: Williamson, R.; Holladay,J.; Jaffe, M. & Brunelle, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal conductivity of cementitious grouts for geothermal heat pumps. Progress report FY 1997

Description: Grout is used to seal the annulus between the borehole and heat exchanger loops in vertical geothermal (ground coupled, ground source, GeoExchange) heat pump systems. The grout provides a heat transfer medium between the heat exchanger and surrounding formation, controls groundwater movement and prevents contamination of water supply. Enhanced heat pump coefficient of performance (COP) and reduced up-front loop installation costs can be achieved through optimization of the grout thermal conduct… more
Date: November 1997
Creator: Allan, M. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analysis of core samples from jet grouted soil

Description: Superplasticized cementitious grouts were tested for constructing subsurface containment barriers using jet grouting in July, 1994. The grouts were developed in the Department of Applied Science at Brookhaven National Laboratory. The test site was located close to the Chemical Waste Landfill at Sandia National Laboratories, Albuquerque, NM. Sandia was responsible for the placement contract. The jet grouted soil was exposed to the service environment for one year and core samples were extracted … more
Date: October 1995
Creator: Allan, M. L. & Kukacka, L. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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