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

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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%.