Thermal degradation and combustion of a novel UV curable coating containing phosphorus

Xing, Weiyi; Hu, Yuan; Song, Lei; Chen, Xilei; Zhang, Ping; Ni, Jie

doi:10.1016/j.polymdegradstab.2009.02.014

Cited by 50 publications

(40 citation statements)

References 27 publications

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“…The first region can be assigned to the decomposition of the phosphate, whereas the second is due to the thermal pyrolysis of side chains of the acrylate and the formation of char. The third region is attributed to the decomposition of the unstable structures in the char, and the last step may result from the oxidation of the exposed matrix as well as the further oxidation of the char residue formed before [12].…”

Section: Results and Discussion 31 Thermogravimetric Analysismentioning

confidence: 99%

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Thermal properties and flame retardancy of an ether-type UV-cured polyurethane coating

Chen¹,

Tai²,

Song³

et al. 2010

Express Polym. Lett.

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Abstract.A new UV-reactive monomer piperazine-N,N′-bis(acryloxyethylaryl-phosphoramidate) (N-PBAAP) containing phosphorus and nitrogen was synthesized and used as flame retardant for an ether-type UV-cured polyurethane acrylate (PUA) coating. The thermal properties of the PUA films were investigated by thermogravimetric analysis (TGA) in air and nitrogen atmosphere. The TGA results showed that the incorporation of N-PBAAP can obviously enhance the char residue of the PUA coatings. From the TGA and real time Fourier transformed infrared spectroscopy (RT-FTIR) results, different degradation behaviors were observed in the PUA coatings with different N-PBAAP content. The combustibility of the PUA coatings was evaluated by microscale combustion calorimeter (MCC). The MCC results revealed that the addition of N-PBAAP in the coatings can significantly reduce the peak Heat Release Rate (pHRR), Heat Release Capacity (HRC) and the Total Heat Release (THR) of the samples. Furthermore, dynamical mechanical thermal analysis (DMA) was employed to examine the viscoelastic properties of the PUA films. It was found that the incorporation of N-PBAAP in the formulation can bring in more functional groups to the coatings, which results in an increase of the glass transition temperature (Tg) and cross linking density (XLD) of the films.

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Section: Results and Discussion 31 Thermogravimetric Analysismentioning

confidence: 99%

“…In fact, phosphorus-nitrogen (P-N) synergism, i.e. intumescent flame-retardant system, is recognized in many literatures [12][13][14][15][16][17][18]. In the P-N system, the phosphorus-containing parts act as an acid source, they usually break down at low temperature and take part in the formation process of the carbonaceous char.…”

Section: Introductionmentioning

confidence: 99%

Thermal properties and flame retardancy of an ether-type UV-cured polyurethane coating

Chen¹,

Tai²,

Song³

et al. 2010

Express Polym. Lett.

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“…It is a relatively new technique to measure heat release rate, which heats small amounts (milligram) samples with oxygen consumption calorimetry. The heat was produced by complete combustion of fuel gases generated during the pyrolysis of the milligram samples [20]. Heat release rate has been found to be very effective to evaluate fire hazards [20].…”

Section: Microscale Combustion Calorimetry (Mcc)mentioning

confidence: 99%

“…The heat was produced by complete combustion of fuel gases generated during the pyrolysis of the milligram samples [20]. Heat release rate has been found to be very effective to evaluate fire hazards [20]. The heat release rate vs time curves for control and DMMEP treated silk fabric is shown in Figure 2.…”

Section: Microscale Combustion Calorimetry (Mcc)mentioning

confidence: 99%

Graft copolymerization modification of silk fabric with an organophosphorus flame retardant

Guan

Chen

2010

Fire and Materials

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SUMMARYThis paper mainly deals with flame retardance of a silk fabric treated with a vinyl phosphate dimethyl 2-(methacryloyloxyethyl) phosphate (DMMEP) onto silk fabric by a graft copolymerization technique. This paper also explores the relationship between limiting oxygen index (LOI) and weight gain of DMMEP treated silk fabric. The paper also investigates the whiteness, handle, tensile strength and laundering durability of treated silk fabric. Microscale combustion calorimetry (MCC) is applied to test the heat release rate of silk fabric. Thermal gravimetric analysis (TG) and differential thermal analysis (DTA) are carried out to investigate the thermal decomposition behavior of DMMEP treated silk fabric. The kinetic parameters, activation energy and pre-exponential factor are determined using the Kissenger method.

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“…However, the phosphorus bonds (P−C, P−O, P−N, etc.) have relatively low bond energies and are easy to break down, 15,16 so the charring process of traditional IFRs takes place at temperatures lower than 280°C. 13,14,17 As we know, the initial degradation temperature (T di ) of thermally resistant resins, such as bismaleimide (BMI) and cyanate ester (CE) resins, is usually higher than 400°C, 18 meaning that the carbonaceous layer around the T di value of the resin cannot be well formed.…”

Section: Introductionmentioning

confidence: 99%

Flame Retardancy and Mechanism of Bismaleimide Resins Based on a Unique Inorganic–Organic Hybridized Intumescent Flame Retardant

Yang

Liang

et al. 2013

Ind. Eng. Chem. Res.

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To completely overcome three critical disadvantages of traditional intumescent flame retardants, a unique hybridized intumescent flame retardant (HPSi-IFR) with three-dimensional structure was synthesized, which has amine groups and Si and P elements. HPSi-IFR has very high thermal stability under either a nitrogen or air atmosphere. With a small addition of HPSi-IFR, the modified bismaleimide/diallyl bisphenol A (BDM/DBA) resin has significantly improved flame retardancy. With only 5 wt % addition of HPSi-IFR into BDM/DBA resin, the residue at 800°C increases 23.1 wt %; meanwhile, the heat release capacity, the total heat release, and the maximum heat release are only 67, 55, and 63% of those of BDM/DBA resin, respectively. To reveal the mechanism behind the attractive flame retarding effect of HPSi-IFR, the char formation chemistry and thermodegradation kinetics were intensively studied. Results show that HPSi-IFR greatly improves the ability of producing a stable and condensed barrier that prevents the heat and mass transfer.

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Thermal degradation and combustion of a novel UV curable coating containing phosphorus

Cited by 50 publications

References 27 publications

Thermal properties and flame retardancy of an ether-type UV-cured polyurethane coating

Thermal properties and flame retardancy of an ether-type UV-cured polyurethane coating

Graft copolymerization modification of silk fabric with an organophosphorus flame retardant

Flame Retardancy and Mechanism of Bismaleimide Resins Based on a Unique Inorganic–Organic Hybridized Intumescent Flame Retardant

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