聚合硅酸硫酸铝的铝形态及其水解稳定性  

The Role of Aluminum in Liquid Pass and Its Effect in Hydrolytic Stability

作　　者：刘温霞[1] 隆言泉[1] 王启常[1] 谢来苏[1] 

机构地区：[1]天津轻工业学院

出　　处：《中国造纸学报》1999年第1期64-68,共5页Transactions of China Pulp and Paper

基　　金：华南理工大学制浆造纸工程国家重点实验室基金

摘　　要：利用２７Ａｌ核磁共振技术分析了聚合硅酸硫酸铝的铝形态，发现铝单双核组分随碱化度的提高和硅铝比的降低而增加，表明硅的引入相对降低了聚合硅酸硫酸铝的聚合程度。但未发现Ａｌ１３的存在。聚合硅酸硫酸铝的水解稳定性随其聚合程度的提高及水解ｐＨ值的增加而下降。The role of aluminum in liquid pass was investigated with 27Al NMR. It was found that aluminum associated monomers and dimmers decreased with increasing alkalinity and with decreasing Si/Al molar ratio in the liquor. No Al13 species were being found. However, increasing alkalinity and decreasing Si/Al molar ratio tended to reduce the stability of the liquid PASS hydrolysis.

关 键 词：聚合 硅酸 硫酸铝 水解稳定性 硅铝比 组分 碱化度 pH值 降低 

分 类 号：TS727[轻工技术与工程—制浆造纸工程] X703.1[环境科学与工程—环境工程]