Figure 8.

Flame retardancy analysis of epoxy resins containing combinatorial flame retardants in terms of the FRI values as a function of UL-94 test results. Symbols are indicative of different types of combinatorial flame retardants used. Hollow symbols are indicative of fiber-incorporated composites with details given in the bottom of Table 1 as a to i notes. The vertical variation in each category, i.e., V-0, V-1, and NR, is schematically representative of the amount of additive used. For example, two data distinguished by different symbols have the same or very close FRI values (horizontal quantity) in a given category (e.g., V-1), but higher V-1 behavior in UL-94 testing means the FR was used in greater quantity.