A flame retardant containing dicyandiamide and aluminum hypophosphite for polyethylene
Source abstract
Abstract
Polyethylene (PE) is a widely used industrial plastic, but its flammable feature limits its further application. A novel composite based on dicyandiamide (DICY) and aluminum hypophosphite (AHP) was integrated into PE. FT-IR confirmed the chemical structures of the composite. During vertical burning and limiting oxygen index tests, the UL-94 flame retardant grade reached level V-0 and the LOI index increased from 18.8% to 26.3% when the ratio of AHP and DICY was 4: 1 (occupying 20 wt% of PE). The CCT tests showed the peak heat release rate of 4-AHP/DICY (AHP: DICY = 4: 1) decreased from 620.3 to 323.4 kW/m2 compared with pure PE. Moreover, the carbon residue of 4-AHP/DICY was higher than that of other samples. After cone calorimetry tests, a compact and stable carbon layer formed on the surface of PE composites through the digital photographs and SEM images of the char residue.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Flame retardant materials and properties · Synthesis and properties of polymers · Polymer Nanocomposites and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
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