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研究了溶剂萃取法用于粉末涂料固化度表征时的萃取条件的选择过程及相关参数的确定方法 ,并将研究结果与用玻璃化转变温度与剩余焓法的固化度测量结果进行了对比分析 .结果表明 :用萃取方法表征固化度反映了涂膜的真实交联情况 ,与玻璃化转变温度法存在对应的关系 .
The selection process of extraction conditions and the determination of relevant parameters were studied when the solvent extraction method was used to characterize the degree of solidification of powder coatings. The results were compared with the measurement results of the curing degree by the glass transition temperature and the residual enthalpy method. The results show that the characterization of the degree of cure by the extraction method reflects the true cross-linking of the coating film, which corresponds to the glass transition temperature method.