Posts about limiting oxygen index

A blend of amino-functionalized graphene modified with polyaniline plus the phosphorus-nitrogen flame retardant CPDD produces the strongest flame retardant polyurethane foam in this[…]

Flame retardant polycarbonate hits UL94 V-0 and stays clear when the retardant sits inside the polymer instead of being mixed into it. Sulfonate[…]

Flame retardant selection starts with three constraints: processing temperature, polymer chemistry, and end-use fire rules. Pick a mineral filler for high-heat resins, a[…]

Polyamide formulation screening uses machine learning to rank candidate polyamide recipes by predicted performance before anyone mixes a gram of material. A trained[…]

A reactive flame retardant carries hydroxyl or isocyanate groups, so it reacts into the polyurethane network during foaming and cannot migrate out. An[…]

Polypropylene additives exist because the polymer has gaps that no reactor can close. Antioxidants interrupt the oxidation chain that starts at the tertiary[…]

Polyphenylene sulfide structure is a strictly alternating chain of para-phenylene rings and sulfide sulfur atoms, and that single arrangement explains nearly every property.[…]

Four grades. One styrene maleic anhydride copolymer backbone. What separates them is a single monomer, and that one change sends each grade off[…]

Polyurethane is in more places than most people realize. Fridge insulation, car seats, building panels, mattress foam, even parts of aircraft. The problem[…]

Most engineers who get burned by a plastic part do not get burned by the material. They get burned by reading one number[…]