In the present paper, the laminar burning velocity and structure of near-stoichiometric premixed laminar flames of methyl methacrylate (MMA) with and without trimethylphosphate (TMP) additives have been studied experimentally and by numerical modeling. The MMA+TMP combustion system is considered as a model system, which simulates gas-phase combustion of polymethyl methacrylate (PMMA) with additive of phosphorus-containing fire retardants (PFRs). The motivation of the present research is to provide a basis for development of a predictive gas-phase chemical kinetic model for inhibition of PMMA by PFRs. The flame sampling molecular beam mass spectrometry was used to determine the spatial variation of the mole fractions of H, OH, PO, PO₂, HOPO, HOPO₂ and some intermediate hydrocarbons in the one-dimensional burner-stabilized flames. The effect of TMP on the hydrocarbon intermediates in the flames is investigated. The reaction mechanism for combustion of MMA+TMP system has been validated against the novel laminar burning velocity and chemical speciation data. Performances and deficiencies of the kinetic mechanism for MMA flame inhibition are discussed. The sensitivity analysis showed that the insufficiently accurate prediction of mole fraction of H, O and OH results in disagreement for mole fraction profiles of hydrocarbon intermediates in the inhibited flame. Inhibition effectiveness of MMA flame by TMP is compared with that derived from experimental data for other fuels and the observed tendencies are discussed.

在本文中，已经通过实验和数值模拟研究了具有和不具有三甲基磷酸酯（TMP）添加剂的甲基丙烯酸甲酯（MMA）的近化学计量的预混合层流火焰的层流燃烧速度和结构。MMA + TMP燃烧系统被认为是模型系统，它模拟了添加了含磷阻燃剂（PFRs）的聚甲基丙烯酸甲酯（PMMA）的气相燃烧。本研究的目的是为开发可预测PFR抑制PMMA的气相化学动力学预测模型提供基础。火焰采样分子束质谱法用于确定H，OH，PO，PO ₂，HOPO，HOPO ₂的摩尔分数的空间变化和一维燃烧器稳定火焰中的一些中间碳氢化合物。研究了TMP对火焰中碳氢化合物中间体的影响。已针对新型层流燃烧速度和化学形态数据验证了MMA + TMP系统燃烧的反应机理。讨论了MMA火焰抑制动力学机理的性能和不足。敏感性分析表明，对H，O和OH摩尔分数的预测不够准确，导致抑制火焰中烃类中间体的摩尔分数分布存在分歧。将TMP对MMA火焰的抑制效果与从其他燃料的实验数据得出的效果进行了比较，并讨论了观察到的趋势。