Different kinds of additive and reactive flame retardants containing phosphorus are increasingly successful as halogen-free alternatives for various polymeric materials and applications. Phosphorus can act in the condensed phase by enhancing charring, yielding intumescence, or through inorganic glass formation; and in the gas phase through flame inhibition. Occurrence and efficiency depend, not...

In order to improve the efficiency of intumescent flame retardants (IFRs), a novel macromolecular charring agent named poly(ethanediamine-1,3,5-triazine-p-4-amino-2,2,6,6-tetramethylpiperidine) (PETAT) with gas phase and condense phase synergistic flame-retardant capability was synthesized and subsequently dispersed into polypropylene (PP) in combination with ammonium polyphosphate (APP) via a ...

• Two low-cost hollow silica nanoparticle synthesis routes. Scalable, general production of soft ceramics by high-shear mechanical mixing. An effective – fiberglass crosslinked network for thermal insulation. Ultralow conductivity 0.023 W -1 m K with robust flexibility. Hollow-structured materials show promise in insulation because the shells encapsulating gaseous voids can interrupt heat trans...

A rigid aromatic phosphorus-containing hyperbranched flame retardant structure is synthesized from 10-(2,5-dihydroxyphenyl)-10H-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-HQ), tris(4-hydroxyphenyl)phosphine oxide (THPPO), and 1,4-terephthaloyl chloride (TPC). The resulting poly-(DOPO-HQ/THPPO-terephthalate) (PDTT) implemented as a into an epoxy resin (EP) at 10 wt% loading. effects on EP are c...

• A mechanically robust high-temperature shape memory photopolymer is reported. The glass transition temperature can reach 280 °C after thermally post-curing. HTSMP possesses record-high recovery stress and energy output. Synergy between isocyanurate phosphine oxide contributes to high flame-retardancy. available for high-resolution digital light printing. Here we report an intrinsically flame-...