Di (dioctylpyrophosphato) ethylene titanate

Catalog NumberACM65467756-1

CAS Number65467-75-6

CategoryOther Phosphorus Flame Retardants

Synonyms	Di (dioctylpyrophosphato) ethylene titanate;Diphosphoric acid p,p-bis(2-ethylhexyl) ester titanium complex
Molecular Formula	C34H74O16P4Ti
Application	Catalyst, Emulsifier, Flame Retardant, Accelerator
Notes	Di (dioctylpyrophosphato) ethylene titanate uses and applications include: Coupling agent, adhesion promoter, antioxidant, antistat, antifoam, accelerator, blowing agent activator, catalyst, curative, corrosion inhibitor, dispersion aid, emulsifier, flame retardant, foaming agent, grinding and process aid

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Case Study

Di(dioctylpyrophosphato) Ethylene Titanate as a Performance-Enhancing Coupling Agent in Flame-Retardant PVC Formulations

Zhang, Mengjiao, et al. Polymer International 67.4 (2018): 445-452.

In this work, titanate coupling agent NDZ-311 (di(dioctylpyrophosphato) ethylene titanate) was incorporated into poly(vinyl chloride) (PVC) compounds that also contained activated carbon (AC) and molybdenum oxide (MoO3). NDZ-311 was used as a processing/coupling aid in the compounding stage. When combined with an AC/MoO3 synergistic flame-retardant package (total AC+MoO3 = 10 phr), the PVC composites achieved substantial reductions in peak heat-release rate (pHRR) and peak smoke production rate (PSPR) compared with neat PVC, while NDZ-311 supported dispersion and compoundability in standard PVC processing.
Flame Retardancy & Smoke Suppression: The composite containing the AC/MoO3 combination exhibited a 47.3% reduction in Peak Heat Release Rate (PHRR) and a 59.9% reduction in Peak Smoke Production Rate (PSPR) compared to unfilled PVC.
Mechanistic Efficiency: Analysis indicated AC promoted early cross-linking of PVC, while MoO3 catalyzed the formation of a compact, high-quality char with organized microstructures. The effective dispersion of these fillers, enabled by NDZ-311, was critical for this synergistic mechanism to function uniformly throughout the material volume. Well-dispersed particles provide a more continuous network for promoting char formation and a more effective barrier against heat and mass transfer.

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