Xeriant non-halogenated fire safety

Xeriant non-halogenated fire safety

Aerospace specialist Xeriant has developed a low-toxicity, low-smoke PIN FR for textiles, constructions and polymers. The non-halogen, bulk additive can be used in compounding, applied to textiles or used with cellulosic materials. Applications to date include...
PIN FR systems: high rate of development

PIN FR systems: high rate of development

Compounding World’s annual review of flame retardants notes high interest and development of all types of PIN FR systems. New grades of phosphonates and other PIN chemistries, with specific PIN synergists, aim to achieve both UL 94 V-0 for thin wall sections and...
Polymeric phosphorus sulphur PIN FR

Polymeric phosphorus sulphur PIN FR

Researchers tested a sulphur polyphosphonate PIN flame retardant in PET achieving UL 94 V-0 (3.2 mm) at 8% loading but with dripping. The polysulfonyldiphenylene phenylphosphonate (PSPPP, a polyphosphonate) was synthesised by reacting phenylphosphonic dichloride with...
PIN functionalised mineral FRs for epoxy

PIN functionalised mineral FRs for epoxy

Magnesium hydroxide (MDH) treated with polydopamine and metal ions showed improved fire performance effect in epoxy. Polydopamine, a bio-inspired polymeric coating material, was polymerised in the presence of the well-recognised mineral PIN flame retardant MDH and of...
Phytic acid, melamine, peanut shell PIN FR

Phytic acid, melamine, peanut shell PIN FR

Biobased PIN flame retardant reduces heat and smoke release from epoxy by over one third. Waste peanut shells were pyrolysed at 700°C, to produce biochar, which was then combined with phytic acid (a natural phosphorus rich molecule widely present in plant seeds) and...