The Influence of the Various Types of Binder on the burning characteristics of the magnesium‐, boron‐, and aluminum‐based igniters

Abstract

The behaviour of six different types of binders phenol‐formaldehyde resin, shellac, polyvinylchloride, ethylcellulose, nitrocellulose, and fluorel was investigated in pyrotechnic compositions on the basis of magnesium, boron and aluminum. It has been found that the nature of the binder significantly influences the burning characteristics of the igniters. Correlation has been found between binder exothermicity and investigated characteristics. In addition, the influence of the contents of phenol‐formaldehyde resin and of fluorel, in the range of 0% to 25% on the same performance characteristics was studied. Phenol‐formaldehyde resin has been chosen as preferred binder for the investigated igniters in an amount of 5%.

Development of green‐colour‐emitting pyrotechnics as a core for 3D temperature imaging sensors inside coal boilers

“…This might have occurred due to Mg not completely reacting and some of it remaining unreacted in PVC-based composition, as has been observed in the literature. [35] Based on these combustion kinetics results, it appears that shellac-and parlon-based compositions are the most stable (slower decomposition) followed by EC, and the PVC-based was the least stable (rapid decomposition). These main differences follow similarly to how the pure binder compounds behave (Figure S4 in Appendix S1).…”

“…Binders can also have a significant influence on a variety of parameters, such as the overall reaction, burning rate, ignition temperature, luminous output, chemical stability, and service life. [35,36] The focus of this study is to systematically analyze green-colour-producing compositions and to identify some of the optimal compositions in terms of colour and intensity for further use in the boilers. For this study, BaN and BC were assessed as green light sources by evaluating the effects of different metallic fuels, binders, oxidizer contents, and additives, and these formulations were optimized for each in terms of green-colour and intensity.…”

The effect of 5-amino-1H-tetrazole on the combustion performance and ignition capability of boron/potassium nitrate igniter

“…Mixtures were prepared by carefully sieving though a 300 mesh (54 lm) sieve three times. Typical composition of B/KNO 3 igniter is 27/73 [7]. Mass ratio of B/KNO 3 for all samples was kept the same as 27/73, and content of 5-AT in the mixture varied from 0 to 20 % by mass.…”

“…Then oxidation of boron particle occurred in an oxygen-rich environment created by the decomposition of KNO 3 . Barisin and Batinic-Haberle [7] studied the effect of different binders on the burning characteristics of B/KNO 3 mixture and found that adding binder into the mixture could influence the temperature of the ignition, burning rate, energy output, chemical stability and service life. The results demonstrated that burning characteristics had no significant changes when the mass content of binder in B/KNO 3 varied from 0 to 5 %.…”

Studies on Effect of Nitrogen Rich Explosives on the Morphology, Thermal and Combustion Behaviour of B/KNO3 Composition

“…In order to improve the performance of igniter compositions, researchers have studied compositions with different additives in the form of binders like ethylcellulose (EC), ni-trocellulose (NC), phenol-formaldehyde resin (PR), shellac, polyvinylchloride (PVC), vinylidene-hexa fluoropropylene copolymer (Viton), poly tetra fluoro ethylene (PTFE), neoprene and of vinylidene fluoride-hexafluoropropylene copolymer (Fluorel) [1,2] and fuels such as Mg, Si, B, Al and Ti [3][4][5].…”