Enhanced flame-retardant effect of a montmorillonite/phosphaphenanthrene compound in an epoxy thermoset

Abstract

The protective barrier effect of OMMT and the flame-inhibition effect of TAD jointly exerted a superior flame-retardant effect, resulting in sufficient flame-retardant effect on epoxy thermosets.

Preparation of a novel phosphorus‐containing organosilicon and its effect on the flame retardant and smoke suppression of polyethylene terephthalate

“…Through the quantitative analysis of three FR modes of physical barrier, flame extinction, and catalytic carbon formation, the flame‐retardant effect in solid phase and gas phase was estimated, and then the flame‐retardant mechanism was analyzed. The flame‐retardant mode of PDPSI/PET composites was quantitatively calculated according to Formulas , , and , and the results are shown in Table . …”

“…The Through the quantitative analysis of three FR modes of physical barrier, flame extinction, and catalytic carbon formation, the flame-retardant effect in solid phase and gas phase was estimated, and then the flame-retardant mechanism was analyzed. The flame-retardant mode of PDPSI/PET composites was quantitatively calculated according to Formulas (1-1), (1-2), and (1-3), 34 and the results are shown in Table 5. Abbreviations: av-SEA, average semi-extinction area; pk-COP, CO generation rate peak; pk-CO 2 P, CO 2 generation rate peak; TSP, total smoke production.…”

Flame retardancy of epoxy resin nanocomposite with a novel polymeric nanoflame retardant

“…Epoxy resin (EP) is a critical and low‐cost thermosetting resin with excellent mechanical, heat resistance, and solvent resistance properties, which is widely used in coatings, adhesives, electrical and electronic materials, laminates, etc . However, the flammability of EP limits its application in some areas with high safety requirements .…”

“…Epoxy resin (EP) is a critical and low‐cost thermosetting resin with excellent mechanical, heat resistance, and solvent resistance properties, which is widely used in coatings, adhesives, electrical and electronic materials, laminates, etc . However, the flammability of EP limits its application in some areas with high safety requirements . The bromine‐containing flame retardant (FR) is one of the most effective FRs for EP and other polymeric materials, but there is potential toxicity to affect the health and environment in terms of the halogen‐containing micromolecule FR; 9,10‐dihydro‐9‐oxa‐10‐phosphaphenanthrene‐10‐oxide (DOPO), polyhedral oligomeric silsesquioxane (POSS), carbon nanotubes (CNTs), graphene/graphene oxide, etc have been used to flame retard EP matrix, and they have achieved good FR effect.…”

“…[1][2][3][4][5][6] However, the flammability of EP limits its application in some areas with high safety requirements. [4][5][6] The bromine-containing flame retardant (FR) is one of the most effective FRs for EP and other polymeric materials, but there is potential toxicity to affect the health and environment in terms of the halogen-containing micromolecule FR 7,8 ; 9,10-dihydro-9-oxa-10phosphaphenanthrene-10-oxide (DOPO), 4,9 polyhedral oligomeric silsesquioxane (POSS), 10,11 carbon nanotubes (CNTs), [12][13][14] graphene/graphene oxide, 15,16 etc have been used to flame retard EP matrix, and they have achieved good FR effect. Among them, POSS is a class of inorganic-organic hybrid silicon-based FR, 11 which was firstly synthesized by Scott in 1946 17 but has widely used since the discovery of polymerizable POSS in the 1990s.…”