论文部分内容阅读
本研究采用半连续法核/壳乳液聚合和常规乳液聚合方法,在传统的滤纸增强乳液聚合中引入反应型阻燃单体丙烯酸乙酯缩磷酸二乙酯(DEAEP)与丙烯酸酯类单体共聚,通过调整单体组成,制备出含磷丙烯酸酯共聚乳液。采用FTIR对共聚物结构进行表征,热失重分析仪研究共聚物的热分解性能,扫描电镜对浸渍纸张的形貌进行表征,极限氧指数(LOI)表征浸渍滤纸的阻燃特性等。本文探讨了DEAEP用量对浸渍滤纸的阻燃性能的影响,随着DEAEP用量的增加,浸渍滤纸的阻燃性能提高。并在研究中发现,乳液的聚合工艺对浸渍滤纸的阻燃性能也有影响,其中采用半连续核/壳乳液聚合工艺制备树脂的阻燃性能将优于常规乳液聚合工艺。
In this study, semi-continuous core / shell emulsion polymerization and conventional emulsion polymerization were used to introduce the reactive flame retardant monomer DEAEP into the traditional filter paper-reinforced emulsion polymerization , By adjusting the monomer composition to prepare a phosphorus-containing acrylate copolymer emulsion. The structure of the copolymer was characterized by FTIR, the thermal decomposition of the copolymer was investigated by TG-CTA, the morphology of the impregnated paper was characterized by scanning electron microscopy, and the limiting oxygen index (LOI) was used to characterize the flame-retardant properties of the impregnated paper. In this paper, the effect of DEAEP dosage on the flame retardancy of impregnated filter paper was discussed. With the increase of DEAEP dosage, the flame retardant properties of impregnated filter paper were improved. And found in the study, the emulsion polymerization process impregnated paper also has an impact on the flame retardant properties, which uses semi-continuous core / shell emulsion polymerization resin flame retardant properties will be superior to the conventional emulsion polymerization process.