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The Effects of Reactive Diluents on Flame Properties of Benzoxazines

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The Effects of Reactive Diluents on Flame Properties of Benzoxazines


This research sought to quantify the effects of reactive diluents on cured benzoxazine networks flame resistance properties. Two monofunctional benzoxazine monomers were synthesized and subsequently characterized using 1H-NMR. The prepared monomers were blended with a commercially available benzoxazine resin at varying concentrations to study their effects on rheological, thermal, and flame retardance properties. Rheological studies revealed that an increase in reactive diluent concentration resulted in a significant reduction in viscosity. TGA studies showed the addition of the reactive diluents resulted in an increase in degradation onset temperature and char yield of the cured network. FAR 25.853 vertical burn testing of benzoxazine-fiberglass composite panels showed the addition of low concentrations of reactive diluents in the matrix network improved flammability properties.


Author: Chris Carpenter


Conference: SAMPE Seattle 2017


SKU/Code: SE17--0750

Pages: 12

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