Juniper Publishers Journal of Polymer science

                                             JUNIPER PUBLISHERS-   ACADEMIC JOURNAL OF POLYMER SCIENCE Abstract This study has aimed to investigate production of neutral sulfite semi-chemical (NSSC) pulping from eucalyptus camaldulensis in Zabol, Sistan & Balouchestan, Iran. Chemical composition including cellulose, lignin, extractive and ash were measured (48.33%), (28.49%), (5.94%) & (0.65%) respectively, while dimension of fibers including length (0.935mm), diameter (19.13μm), lumen cavity (8.89μm) & cell wall thickness (5.12μm). Cooking conditions were consist of three levels of chemical charge (10, 14 & 18% on O.D weight), constant time of 90min, constant temperature of 170 °C & liquor to wood ratio of 7:1. The pulps were refined to 400±25mL, CSF & 127gm-2 hand sheets were made. Finally, strength properties of the pulps we...

                                         JUNIPER PUBLISHERS-   ACADEMIC JOURNAL OF POLYMER SCIENCE Abstract In the present work, triple base propellant (TBP) containing mainly energetic nitrate polymer nitrocellulose and nitroglycerine, picrite, 1,1-diamino-2,2-dinitroethene (FOX-7) along with ingredients such as stabiliser and plasticizer has been processed by solvent method. Picrite has been replaced in increments with FOX-7 from the propellant composition. Acetone: ethanol used as solvent to gelatinise/plasticize NC during processing. Dimensions of the propellant was determined by physical measurement and propellant grains were subjected to mechanical properties (compressive strength (CS), % compression) determination, sensitivity tests and closed vessel (CV) firing. Incorporation of FOX-7 led to remarkable increase in CS at sub-zero temperatures (-20°C) and ...

Authored by Kurbanbekov ShR                                                                             Abstract The paper presents kinetics of hydrogen sorption of Ti-23.5at%Al-21.5at%Nb alloys in isothermal conditions underthe temperature of 450, 500 and 550 °С. It was determined that maximum quantity of absorbed hydrogen is observed at material of sorbed alloy under the temperature of 550 °С. That presents approximately 0.289mass%. It had been found that hydrogen is released under the temperatures within 700 …790 °С. In addition, it was revealed that maximum release of hydrogen composes 85% of samples saturated...