Polymeric Coatings Effect on Surface Activity and Mechanical Behavior of High Explosives

Abstract

Curing for 3 days at 40 °C results in a linear shrinkage of less than 1 mil/in., and this shrinkage does not increase during postcuring at 100 °C even though 17-24% of the original epoxy groups react during the 100 °C postcure. When the liquid epoxy compound is placed in a 100 °C oven and cured for 1 day at this temperature, it shrinks 8 mil/in. and no additional shrinkage occurs during 7 days at 100 °C.

Synthesis and Evaluation of 3‐Picrylamino‐1,2,4‐Triazole (PATO) Formulations

“…By comparison, the synthesis of TATB using Benziger's methodology requires fuming acids for nitration and a pressure reactor for aminolysis, making the overall effort more hazardous [6]. As described by Bower for TATB, the for-mulation of a plastic bonded explosive (PBX) can have significant influence over the physical and sensitivity properties of the material [7]. To support the utility of PATO we generated three formulations and measured their performance.…”

Adhesive properties of some fluoropolymer binders with the insensitive explosive 1,3,5-triamino-2,4,6-trinitrobenzene (TATB)

“…Bower et al showed that thermomechanical properties such as glass transition temperature (T g ) and extensibility, as well as surface wettability of the binder, are critical for explosive performance and safety [2]. It has been posited that the most common, and limiting, mode of failure in plastic-bonded explosives under thermal or mechanical loads is crack formation and subsequent propagation along explosive crystal-binder interfaces [3][4][5][6].…”

Encapsulation of Cyclotetramethylenetetranitramine (HMX) by Electrostatically Self-Assembled Graphene Oxide for Desensitization

“…According to the abundant previous studies, it has been proved that the sensitivity of energetic materials is strongly related to their intrinsic structures such as crystal size, shape, purity and defects [6]. The sensitivity can be further reduced by grinding [7] or adding inert materials such as organic wax [8], TATB (1,3,5-triamino-2,4,6,-trinitrobenzene) [9], polymers [10][11][12] and inorganic carbon materials [13][14][15].…”