摘要
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 the stu ant acrylic monomer dy, the emulsion resins were synthesized by co-polymerizing a novel halogen-free flame retard-with phosphorus moiety, diethyl （acryloyloxyethyl）-phosphonate （DEAEP） with styrene, ac- rylates through semi-continuous core/shell emulsion polymerization and conventional emulsion polymerization. The phosphorus acrylate copolymer emulsion was prepared by adjusting the monomer compositon. The chemical struc- ture of the resins as well as the flammability and thermal stability of the papers were characterized by FTIR, LOI measurement and TG, respectively. The results indicate that the flame-retardant property of the papers was obvious- ly increased with the content of DEAEP. And it is found that the emulsion polymerization process of filter paper im- pregnated with flame-retardant properties also have an impact on the flame retardance of acrylate copolymer emul- sion,the use of semi-continuous core/shell emulsion polymerization process to prepare flame retardant resin is supe- rior to conventional emulsion polymerization process.
出处
《造纸科学与技术》
北大核心
2011年第6期55-60,共6页
Paper Science & Technology
基金
中国博士后科学基金(20080440112)资助项目
关键词
汽车三滤纸
阻燃剂
丙烯酸乙酯缩磷酸二乙酯
丙烯酸酯共聚乳液
LOI
auto-filter paper
flame retardants
diethyl（acryloyloxyethyl）-phosphonate （DEAEP）
acrylate copolymer emulsion
LOI
