2024
DOI: 10.21203/rs.3.rs-4543386/v1
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Enhancement in fire retardancy of thermoplastic polyurethane: Effect of pentaerythritol derived phosphorous based bicyclic polymer on the flammability 

Shikha Shikha,
Neelam Yadav Yadav

Abstract: 1-oxyphospha-4-hydroxymethyl-2,6,7-trioxabicyclo [2.2.2] octane (PEPA) was synthesized successfully in producing a PEPA-based monomer having an acrylate group and its polymers. Nuclear magnetic resonance (NMR), 1H, and 31P spectra were used to establish their structural integrity. Thermogravimetric analysis (TGA), the limited oxygen index (LOI), and the UL-94 test were used to examine the thermal characteristics and flame retardant behavior of the systems with 15 wt% of flame retardants (PhosPTPU15). Thermopla… Show more

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