Mechanism study of wood lignin pyrolysis by using TG–FTIR analysis

https://dr.ntu.edu.sg/bitstream/10220/24197/1/RECENT%20DEVELOPMENTS%20IN%20THE%20FIELD%20OF%20FIRE%20RETARDANCY%20OF%20POLYMERIC%20MATERIALS.pdf

Recent developments in the fire retardancy of polymeric materials

Flame retardancy and thermal degradation mechanism of epoxy resin composites based on a DOPO substituted organophosphorus oligomer

In this work, the effect of both the expandable graphite (EG) and ammonium polyphosphate modified with 3-(methylacryloxyl) propyltrimethoxy silane (M-APP) on the flame retardancy and mechanical pro...

Effects of Expandable Graphite and Modified Ammonium Polyphosphate on the Flame-Retardant and Mechanical Properties of Wood Flour-Polypropylene Composites:

Intumescence: Tradition versus novelty. A comprehensive review

Effect of a novel charring–foaming agent on flame retardancy and thermal degradation of intumescent flame retardant polypropylene

Synergistic effects of lanthanum oxide on a novel intumescent flame retardant polypropylene system

Investigation of mechanical property, flame retardancy and thermal degradation of LLDPE–wood-fibre composites

The synergistic effects of some metal oxides on novel intumescent flame retardant (IFR)–thermoplastic polyurethane (TPU) composites were evaluated by limiting oxygen index (LOI), vertical burning test (UL-94), thermogravimetric analysis (TGA), cone calorimetry, and scanning electron microscopy. The experimental data indicated that the metal oxides enhanced the LOI value and restricted the dropping of the composites. The IFR–TPU composites passed the UL-94 V-0 rating test (1.6 mm) in the presence of magnesium oxide (MgO) and ferric oxide (Fe2O3) at 35 wt % IFR loading, whereas only the MgO-containing IFR–TPU composite reached a UL-94 V-0 rating at 30 wt % IFR loading. The TGA results show that the metal oxides had different effects on the process of thermal degradation of the IFR–TPU compositions. MgO easily reacted with polyphosphoric acid generated by the decomposition of ammonium polyphosphate (APP) to produce magnesium phosphate. MgO and Fe2O3 showed low flammability and smoke emission due to peak heat release rate, peak smoke production rate, total heat release, and total smoke production (TSP). However, zinc oxide brought an increase in the smoke production rate and TSP values. Among the metal oxides, MgO provided an impressive promotion on the LOI value. The alkaline metal oxide MgO more easily reacted with APP in IFRs. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

Synergistic effect of metal oxides on the flame retardancy and thermal degradation of novel intumescent flame‐retardant thermoplastic polyurethanes

Two novel triazine ring-containing macromolecules, designated as charring-foaming agent 1 (CFA1) and charring-foaming agent 2 (CFA2), were synthesized by a series of polycondensation reactions. Their chemical structures were analyzed by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance spectroscopy (13C solid-state NMR), and elemental analysis, and their thermal degradation properties were assessed by thermogravimetric analysis (TGA). TGA data revealed that CFA1 and CFA2 show high thermal stability and have a high propensity for char formation, their initial decomposition temperatures being 300.2°C and 287.1°C, and their char residues at 800°C amounting to 32.2 wt % and 21.1 wt %, respectively. CFA1 presents higher thermal stability and more char residue than CFA2. Based on experimental results of the flame retardancy (limiting oxygen indices values and UL-94 V-0 rating) and the TG data of new intumescent flame retardant polypropylene (IFR-PP) containing CFA1 and CFA2, CFA1 exhibits more outstanding intumescent flame retardance than CFA2. IFRs containing CFA1 and CFA2 enhanced Notched Izod Impact strength of IFR-PP, and slightly lower tensile strength of IFR-PP. IFR2 shows more advantageous effect on mechanical properties of IFR-PP than IFR1. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

Bin Li

Papers

Effect of a novel charring–foaming agent on flame retardancy and thermal degradation of intumescent flame retardant polypropylene

Synergistic effects of lanthanum oxide on a novel intumescent flame retardant polypropylene system

Investigation of mechanical property, flame retardancy and thermal degradation of LLDPE–wood-fibre composites

Synergistic effect of metal oxides on the flame retardancy and thermal degradation of novel intumescent flame‐retardant thermoplastic polyurethanes

Synthesis, thermal degradation, and flame retardance of novel triazine ring-containing macromolecules for intumescent flame retardant polypropylene