Cure Kinetics of an Epoxy Resin Containing Naphthyl/Dicyclopentadiene Moieties and Bis-Phenoxy (3-Hydroxy) Phosphine Oxide System and Properties of Its Cured Polymer
作者：Ren Hua,Sun Jianzhong,Zhao Qian,Cai Zhiqi,Ling Qincai,Zhou Qiyun
關鍵字：epoxy resin, bisphenoxy (3-hydroxy) phosphine oxide, cure kinetics
論文來源：期刊
具體來源：JOURNAL OF APPLIED POLYMER SCIENCE卷: 112 期: 2 頁: 761-768
發(fā)表時間：2009年
The cure kinetics of naphthyl/dicyclopentadiene epoxy resin and bisphenoxy (3-hydroxy) phosphine oxide was investigated by differential scanning calorimetry (DSC) under nonisothermal and isothermal condition. The advanced isoconversional method was used to study the nonisothermal DSC data, the effective activation energy of the curing system in the early stage agreed with the value Calculated from the Kissinger model and then increased because of the hindrance of molecular mobility. Autocatalytic behavior was shown in the isothermal DSC measurement, which was well described by Kamal model in the early curing stage. In the later stage, a crosslinked network structure was formed and the curing reaction was mainly controlled by diffusion. The diffusion factor was introduced to optimize the Kamal model and correct the deviation of the calculated data. The physical properties of the cured polymer were evaluated by dynamic mechanical thermal analyses, were mogravimetric analyses, and limiting oxygen index test, which exhibited relatively high glass transition temperature, thermal stability, and flame retardancy.